Operation Instructions for Shielded Wire and Packaging in Electronic Production
I. Tape-Wrapping Operation Instructions
(1) Operation Content
According to the requirements of the drawing, accurately obtain the corresponding specifications of tape. Pull out the tape steadily and place it on a clean and tidy workbench with the adhesive side facing up.
Carefully align the card seat precisely with the reference points on the drawing. Start from the starting point of the tape, wind it 1.5 turns first, and then wind it in a 1/2-turn overlapping manner from right to left. Keep the tape flat and tight during the winding process.
When the tape is wound to the size specified in the drawing, wind it 2 more turns in the forward direction. Cut the tape with scissors, ensuring that the cut is neat. Then roll and press the cut edge neatly and make it fit tightly to ensure that the tape is firmly fixed.
After completing the first-piece product, immediately submit it to the QC for confirmation. Only after the QC confirms that the product is qualified can mass production begin.
Neatly bundle the tape-wrapped products, put them in a turnover box, and promptly transfer them to the next-process workstation.
During the operation, regularly use a ruler to confirm the dimensions of each part to ensure they meet the requirements of the drawing.
(2) Quality Highlights
When starting to wind the tape, it is necessary to wind 1.5 turns first before proceeding with the 1/2-turn overlapping winding. This is a key step to ensure the fixing effect of the tape.
Before finishing the winding, wind the tape 2 turns, roll and press the cut edge neatly, and stick it tightly to prevent the tape from loosening.
The appearance of thetape-wrappedd product should be uniform. There should be no loose, bulging, or non - 1/2 - overlapping - with - the - previous - turn phenomena to ensure the product's appearance quality and protective effect.
The dimensions of each part must be strictly controlled within the tolerance range specified in the drawing to ensure the consistency and compatibility of the product.
When cutting the tape, be extra careful to avoid damaging the wire and the already-wrapped tape.
II. Assembly Operation Instructions
(1) Operation Content
According to the requirements of the drawing or sample, accurately obtain the corresponding specifications of wires and hole seats to ensure that the specifications and models of the materials are consistent with the requirements.
After obtaining the materials, carefully check the material information. After confirmation, trial-produce 5 PCS (pieces) of products according to the drawing or sample, and submit the trial-produced products to the QC for confirmation.
Only after the QC confirms that the products are qualified can formal mass production begin.
During assembly, hold the hole seat firmly with the left hand, hold the wire at the rear of the terminal with the right hand, about 5 - 10mm away from the terminal, and insert the terminal horizontally into the specified hole. Listen carefully during the insertion process. When you hear a "click" sound of the terminal positioning, it means the terminal is inserted in place. After insertion, gently pull it backward to ensure that the terminal is fully inserted and there is no looseness.
After completing one product, promptly collect the defective products found, hand them over to the team leader for processing, and clean the workbench to prepare for the production of the next product.
Neatly bundle the finished products, put them in a turnover box, hand them over to the team leader for counting, and fill in the engineering record card to record the relevant information about the product.
(2) Quality Highlights
During the assembly process, pay special attention to the crimping quality of the terminal. If any deformation, wire-skin crimping, or other abnormal conditions of the terminal are found, do not insert it into the hole seat. Instead, immediately select it and put it in the defective-product box to prevent defective products from flowing into the next process.
The quality of the whole seat is equally important. Hole seats with surface cracks, defects, deformation, etc. shall not be used. Strictly control the quality of the hole seat to ensure the reliable quality of the assembled product.
III. Finished - Product Inspection Operation Instructions
(1) Operation Content
According to the material number on the engineering record card, accurately find the corresponding first-piece sample, and inspect the finished products based on the sample.
Check the appearance of the hole seat to ensure that there are no obvious scratches, discoloration, burrs, material shortage, shrinkage, obvious stains, impurities, mechanical damage, or misuse phenomena. The appearance quality should meet the requirements.
Check the surface of the wire. It should have no serious stains, impurities, discoloration, blisters, damage, splitting, or exposed wire cores. The printing should be clear and complete to ensure the quality of the wire and the readability of the marking.
Check the terminal to ensure that there is no oxidation, deformation, or half-wrapped - glue phenomenon. The quality of the terminal directly affects the electrical performance and reliability of the product.
Check the tinned part. It should be bright without oxidation, and there should be no large - head or forked phenomena. The tinning quality should be good.
Inspect the dimensions of each part. Randomly select five wires, first use a ruler to confirm whether they are the same as the sample, and then use the confirmed wire or sample for comparative inspection to ensure accurate dimensions.
Conduct a 100% confirmation of the wire positions. Based on the sample, carefully check whether the position of each wire is accurate to prevent product functional abnormalities caused by incorrect wire positions.
After inspection, bundle the products according to the wire-tying specifications, neatly put them in a turnover box, attach an engineering record card, and mark the material status for easy subsequent traceability and management.
During the inspection process, put the defective products found in the defective-product box and mark the defective content. After inspecting one product, hand over the defective products to the assembly team leader for processing and follow up on the processing results to ensure that the defective products are properly handled.
(2) Quality Highlights
For 2P wires, 20080 flexible flat cables, and 2651 gray flat cables, reverse and cross-over phenomena are likely to occur during the production process. Pay special attention during inspection to prevent product functional abnormalities caused by incorrect wire arrangements.
The quality requirements for shielded wires are relatively high. There should be no exposed copper wires or damaged sleeves. Once such defects are found, handle them promptly to ensure the shielding effect of the shielded wire.
When confirming the wire dimensions, use the 0 - 0-scale mark of the ruler as the reference point, and stretch the wire horizontally and backward for measurement. In addition to the total length, also confirm the tin-dipping length to ensure that the dimensions meet the requirements of the drawing.
In principle, the length difference of a single-wire segment is based on 2mm. If the customer has special requirements, follow the customer's requirements. When it is impossible to determine whether the length difference of the wire segment meets the requirements, report it to the supervisor for handling promptly to avoid product non - compliance due to dimension problems.
For products with vacant positions, pay special attention to whether the position of the vacant position is accurate to prevent the influence on the product's assembly and use due to incorrect vacant-position placement.
IV. Wire-Cutting Operation Instructions
(1) Operation Content
According to the requirements of the drawing or processing order, accurately obtain the corresponding specifications of wires to ensure that the model, specifications, and other information of the wires are consistent with the requirements.
After obtaining the materials, carefully check the material information. After confirmation, adjust the wire-cutting equipment according to the processing requirements. Trial - produce 5 PCS (pieces) of products and submit the trial-produced products to the IPQC (In-Process Quality Control) for confirmation.
The IPQC will check the wire length, stripping length, wire specifications, etc. according to the processing requirements, and use a magnifying glass to confirm whether there is any damage to the core wire. Only after the IPQC confirms that the first-piece state is qualified can mass production begin.
Neatly bundle the cut wires with rubber bands and put them in a clean turnover box to prevent the wires from being scattered and contaminated.
Fill in the engineering record card to record the relevant items of wire-cutting, such as wire specifications, quantity, length, etc., and paste the engineering record card on the front of the turnover box for easy subsequent traceability and management.
After cutting, neatly place the products in the designated area. At the same time, clean the garbage and defective products on the machine to keep the working environment clean and prepare for the production of the next product.
During the operation, regularly use a ruler to confirm the dimensions of each part to ensure they meet the requirements of the drawing. If any abnormal situation is found, report it to the team leader for handling promptly to prevent the production of batch defective products.
When confirming the wire dimensions, use the 0 - 0-scale mark of the ruler as the reference point, and stretch the wire horizontally and backward for measurement to ensure the accuracy of the measurement results.
(2) Quality Highlights
The quality requirements for the wire body are relatively high. Ensure that the wire body has no impurities or discoloration, the printing is clear and complete, the copper wire has no oxidation and blackening, and the outer diameter is uniform to ensure the appearance quality, and electrical performance of the wire.
The stripping size and tolerance should be strictly controlled within the specified range. The stripping size and tolerance table are as follows (specific size and tolerance data can be filled in according to the actual situation): For example, for a wire with a diameter of X mm, the stripping length is Y mm, and the tolerance is ±Z mm.
The core wire and the stripping cut should be within the specified range. The cut should be neat, without burrs, or being too long or too short to ensure the smooth progress of subsequent processing.
In the same bundle of wires, the co-existence of positive and negative deviations is not allowed. Ensure the dimensional consistency of the wires to prevent product non - compliance due to excessive dimensional deviation.
V. Crimping Operation Instructions
(1) Operation Content
According to the requirements of the drawing or processing order, accurately obtain the corresponding specifications of wires and terminals to ensure that the specifications and models of the materials are consistent with the requirements.
After obtaining the materials, carefully check the material information. After confirmation, adjust the crimping equipment according to the processing requirements. Trial - produce 5 PCS (pieces) of products and submit the trial-produced products to the IPQC (In-Process Quality Control) for confirmation of the crimping state.
The IPQC will confirm whether there is any misuse of wires and terminals based on the requirements of the drawing or processing order, and confirm the crimping state of the terminals according to the tension specification table or height table. Only after the IPQC confirms that the state is qualified can batch production be carried out.
During crimping, hold the wire firmly with the left hand, and place the wire separately in the crimping die with the right hand. Crimp according to the specified pressure and action to ensure a good crimping effect.
Neatly bundle the crimped wires with rubber bands and put them in a clean turnover box to prevent the wires from being scattered and contaminated.
Fill in the engineering record card to record the relevant items of crimping, such as wire specifications, terminal models, crimping quantity, etc., and paste the engineering record card on the front of the turnover box for easy subsequent traceability and management.
After crimping, neatly place the products in the designated area. At the same time, clean the garbage and defective products on the machine to keep the working environment clean and prepare for the production of the next product.
During the production process, conduct self-inspection at any time and carefully confirm the crimping state. If any abnormal situation is found, immediately stop production and report it to the team leader for handling to prevent the continuous production of defective products and cause greater losses.
(2) Quality Highlights
The quality of the used terminals is of vital importance. There should be no deformation, oxidation, or other defective phenomena. Before use, carefully check the appearance and quality of the terminals to ensure that they meet the requirements.
After crimping, the terminals should not have bent, exposed core wires, or other defective situations. If such defects are found, carry out rework or scrapping promptly to prevent defective products from flowing into the next process.
When reworking defective products, be extra careful not to damage the wire core. Reworked products should be marked separately and submitted to the QC (Quality Control) for confirmation of whether the length, etc. meets the requirements. Only after the QC confirms that they are qualified can they be put into the good-productt category.
When repairing parallel wires, repair all the wires neatly. Do not repair only a single wire. When reworking a single wire, trim all the wires to be flat based on the shortest wire to ensure the neatness and consistency of the wires.
The machine-adjusting wires should be confirmed separately. Only after confirmation that they are qualified can they be put into the good-product category. At the same time, ensure that there is no oil pollution on the wires to prevent affecting the product quality.
VI. Flat - Cable Crimping Operation Instructions
(1) Operation Content
According to the requirements of the drawing or processing order, accurately obtain the corresponding specifications of wires and materials, and carefully confirm to ensure that the specifications and models of the materials are consistent with the requirements.
Accurately fasten the FC pressure head to the middle cover to ensure a tight combination, providing a good foundation for the subsequent crimping work.
Place the wire in it according to the direction required by the drawing, and align the wire end with the pressure head. This is one of the key steps to ensure the crimping effect.
Place the pressure head steadily in the crimping machine slot, and then pull the handle and press down evenly to complete the crimping action.
Take out the crimped wire and submit it to the QC (Quality Control) for confirmation. Only after the QC confirms that the product is qualified can mass production begin.
For products that need to be buckled with a reverse discount, buckle the reverse discount accurately according to the requirements of the drawing. Then neatly bundle the crimped wire and put it in a turnover box for convenient subsequent transfer and processing.
Fill in the engineering record card to record the relevant information about flat-cable crimping, such as wire specifications, material models, crimping quantity, etc., and paste the engineering record card outside the box and hand it over to the next-process workstation to do a good job in the hand - over between processes.
(2) Quality Highlights
The used materials must meet the requirements. Carefully check the specifications, models, and other information of the materials to ensure the quality and applicability of the materials.
The quality of the pressure head is equally important. There should be no missing pins, damage, or other phenomena. Before use, carefully check the appearance and quality of the pressure head to ensure that the pressure head can work normally and guarantee the crimping effect.
The cut of the wire should be flat, without a slanting mouth. The quality of the cut directly affects the firmness of the crimping and the appearance quality of the product. Strictly control the quality of the cut.
Pay attention to confirming the red-edge direction of the wire and the position of the first pin of the pressure head. This is one of the key factors in ensuring the correct direction and neat arrangement of the wire after flat-cable crimping, preventing product functional abnormalities or poor appearance caused by incorrect direction.
The wire end should not exceed the side of the pressure head or be incompletely crimped. Ensure that the wire end is completely pressed tightly by the pressure head to prevent the wire end from loosening, affecting the electrical performance and reliability of the product.
The pressure head and the reverse buckle should be buckled in place. This is an important link to ensure the firm and stable crimping of the flat - cable. Carefully check the buckling situation of the pressure head and the reverse buckle to ensure that they meet the requirements.
I. Tape-Wrapping Operation Instructions
(1) Operation Content
According to the requirements of the drawing, accurately obtain the corresponding specifications of tape. Pull out the tape steadily and place it on a clean and tidy workbench with the adhesive side facing up.
Carefully align the card seat precisely with the reference points on the drawing. Start from the starting point of the tape, wind it 1.5 turns first, and then wind it in a 1/2-turn overlapping manner from right to left. Keep the tape flat and tight during the winding process.
When the tape is wound to the size specified in the drawing, wind it 2 more turns in the forward direction. Cut the tape with scissors, ensuring that the cut is neat. Then roll and press the cut edge neatly and make it fit tightly to ensure that the tape is firmly fixed.
After completing the first piece of product, immediately submit it to the QC for confirmation. Only after the QC confirms that the product is qualified can mass production begin.
Neatly bundle the tape-wrapped products put them in a turnover box, and promptly transfer them to the next-process workstation.
During the operation, regularly use a ruler to confirm the dimensions of each part to ensure they meet the requirements of the drawing.
(2) Quality Highlights
When starting to wind the tape, it is necessary to wind 1.5 turns first before proceeding with the 1/2-turn overlapping winding. This is a key step to ensure the fixing effect of the tape.
Before finishing the winding, wind the tape 2 turns, roll and press the cut edge neatly, and stick it tightly to prevent the tape from loosening.
The appearance of thetape-wrappedd product should be uniform. There should be no loose, bulging, or non - 1/2 - overlapping - with - the - previous - turn phenomena to ensure the product's appearance quality and protective effect.
The dimensions of each part must be strictly controlled within the tolerance range specified in the drawing to ensure the consistency and compatibility of the product.
When cutting the tape, be extra careful to avoid damaging the wire and the already-wrapped tape.
II. Assembly Operation Instructions
(1) Operation Content
According to the requirements of the drawing or sample, accurately obtain the corresponding specifications of wires and hole seats to ensure that the specifications and models of the materials are consistent with the requirements.
After obtaining the materials, carefully check the material information. After confirmation, trial-produce 5 PCS (pieces) of products according to the drawing or sample, and submit the trial-produced products to the QC for confirmation.
Only after the QC confirms that the products are qualified can formal mass production begin.
During assembly, hold the hole seat firmly with the left hand, hold the wire at the rear of the terminal with the right hand, about 5 - 10mm away from the terminal, and insert the terminal horizontally into the specified hole. Listen carefully during the insertion process. When you hear a "click" sound of the terminal positioning, it means the terminal is inserted in place. After insertion, gently pull it backward to ensure that the terminal is fully inserted and there is no looseness.
After completing one product, promptly collect the defective products found, hand them over to the team leader for processing, and clean the workbench to prepare for the production of the next product.
Neatly bundle the finished products, put them in a turnover box, hand them over to the team leader for counting, and fill in the engineering record card to record the relevant information about the product.
(2) Quality Highlights
During the assembly process, pay special attention to the crimping quality of the terminal. If any deformation, wire-skin crimping, or other abnormal conditions of the terminal are found, do not insert it into the hole seat. Instead, immediately select it and put it in the defective-product box to prevent defective products from flowing into the next process.
The quality of the whole seat is equally important. Hole seats with surface cracks, defects, deformation, etc. shall not be used. Strictly control the quality of the hole seat to ensure the reliable quality of the assembled product.
III. Finished - Product Inspection Operation Instructions
(1) Operation Content
According to the material number on the engineering record card, accurately find the corresponding first-piece sample, and inspect the finished products based on the sample.
Check the appearance of the hole seat to ensure that there are no obvious scratches, discoloration, burrs, material shortage, shrinkage, obvious stains, impurities, mechanical damage, or misuse phenomena. The appearance quality should meet the requirements.
Check the surface of the wire. It should have no serious stains, impurities, discoloration, blisters, damage, splitting, or exposed wire cores. The printing should be clear and complete to ensure the quality of the wire and the readability of the marking.
Check the terminal to ensure that there is no oxidation, deformation, or half-wrapped - glue phenomenon. The quality of the terminal directly affects the electrical performance and reliability of the product.
Check the tinned part. It should be bright without oxidation, and there should be no large - head or forked phenomena. The tinning quality should be good.
Inspect the dimensions of each part. Randomly select five wires, first use a ruler to confirm whether they are the same as the sample, and then use the confirmed wire or sample for comparative inspection to ensure accurate dimensions.
Conduct a 100% confirmation of the wire positions. Based on the sample, carefully check whether the position of each wire is accurate to prevent product functional abnormalities caused by incorrect wire positions.
After inspection, bundle the products according to the wire-tying specifications, neatly put them in a turnover box, attach an engineering record card, and mark the material status for easy subsequent traceability and management.
During the inspection process, put the defective products found in the defective-product box and mark the defective content. After inspecting one product, hand over the defective products to the assembly team leader for processing and follow up on the processing results to ensure that the defective products are properly handled.
(2) Quality Highlights
For 2P wires, 20080 flexible flat cables, and 2651 gray flat cables, reverse and cross-over phenomena are likely to occur during the production process. Pay special attention during inspection to prevent product functional abnormalities caused by incorrect wire arrangements.
The quality requirements for shielded wires are relatively high. There should be no exposed copper wires or damaged sleeves. Once such defects are found, handle them promptly to ensure the shielding effect of the shielded wire.
When confirming the wire dimensions, use the 0 - 0-scale mark of the ruler as the reference point, and stretch the wire horizontally and backward for measurement. In addition to the total length, also confirm the tin-dipping length to ensure that the dimensions meet the requirements of the drawing.
In principle, the length difference of a single-wire segment is based on 2mm. If the customer has special requirements, follow the customer's requirements. When it is impossible to determine whether the length difference of the wire segment meets the requirements, report it to the supervisor for handling promptly to avoid product non - compliance due to dimension problems.
For products with vacant positions, pay special attention to whether the position of the vacant position is accurate to prevent the influence on the product's assembly and use due to incorrect vacant-position placement.
IV. Wire-Cutting Operation Instructions
(1) Operation Content
According to the requirements of the drawing or processing order, accurately obtain the corresponding specifications of wires to ensure that the model, specifications, and other information of the wires are consistent with the requirements.
After obtaining the materials, carefully check the material information. After confirmation, adjust the wire-cutting equipment according to the processing requirements. Trial - produce 5 PCS (pieces) of products and submit the trial-produced products to the IPQC (In-Process Quality Control) for confirmation.
The IPQC will check the wire length, stripping length, wire specifications, etc. according to the processing requirements, and use a magnifying glass to confirm whether there is any damage to the core wire. Only after the IPQC confirms that the first-piece state is qualified can mass production begin.
Neatly bundle the cut wires with rubber bands and put them in a clean turnover box to prevent the wires from being scattered and contaminated.
Fill in the engineering record card to record the relevant items of wire-cutting, such as wire specifications, quantity, length, etc., and paste the engineering record card on the front of the turnover box for easy subsequent traceability and management.
After cutting, neatly place the products in the designated area. At the same time, clean the garbage and defective products on the machine to keep the working environment clean and prepare for the production of the next product.
During the operation, regularly use a ruler to confirm the dimensions of each part to ensure they meet the requirements of the drawing. If any abnormal situation is found, report it to the team leader for handling promptly to prevent the production of batch defective products.
When confirming the wire dimensions, use the 0 - 0-scale mark of the ruler as the reference point, and stretch the wire horizontally and backward for measurement to ensure the accuracy of the measurement results.
(2) Quality Highlights
The quality requirements for the wire body are relatively high. Ensure that the wire body has no impurities or discoloration, the printing is clear and complete, the copper wire has no oxidation and blackening, and the outer diameter is uniform to ensure the appearance quality, and electrical performance of the wire.
The stripping size and tolerance should be strictly controlled within the specified range. The stripping size and tolerance table are as follows (specific size and tolerance data can be filled in according to the actual situation): For example, for a wire with a diameter of X mm, the stripping length is Y mm, and the tolerance is ±Z mm.
The core wire and the stripping cut should be within the specified range. The cut should be neat, without burrs, or being too long or too short to ensure the smooth progress of subsequent processing.
In the same bundle of wires, the existence of positive and negative deviations is not allowed. Ensure the dimensional consistency of the wires to prevent product non - compliance due to excessive dimensional deviation.
V. Crimping Operation Instructions
(1) Operation Content
According to the requirements of the drawing or processing order, accurately obtain the corresponding specifications of wires and terminals to ensure that the specifications and models of the materials are consistent with the requirements.
After obtaining the materials, carefully check the material information. After confirmation, adjust the crimping equipment according to the processing requirements. Trial - produce 5 PCS (pieces) of products and submit the trial-produced products to the IPQC (In-Process Quality Control) for confirmation of the crimping state.
The IPQC will confirm whether there is any misuse of wires and terminals based on the requirements of the drawing or processing order, and confirm the crimping state of the terminals according to the tension specification table or height table. Only after the IPQC confirms that the state is qualified can batch production be carried out.
During crimping, hold the wire firmly with the left hand, and place the wire separately in the crimping die with the right hand. Crimp according to the specified pressure and action to ensure a good crimping effect.
Neatly bundle the crimped wires with rubber bands and put them in a clean turnover box to prevent the wires from being scattered and contaminated.
Fill in the engineering record card to record the relevant items of crimping, such as wire specifications, terminal models, crimping quantity, etc., and paste the engineering record card on the front of the turnover box for easy subsequent traceability and management.
After crimping, neatly place the products in the designated area. At the same time, clean the garbage and defective products on the machine to keep the working environment clean and prepare for the production of the next product.
During the production process, conduct self-inspection at any time and carefully confirm the crimping state. If any abnormal situation is found, immediately stop production and report it to the team leader for handling to prevent the continuous production of defective products and cause greater losses.
(2) Quality Highlights
The quality of the used terminals is of vital importance. There should be no deformation, oxidation, or other defective phenomena. Before use, carefully check the appearance and quality of the terminals to ensure that they meet the requirements.
After crimping, the terminals should not have bent, exposed core wires, or other defective situations. If such defects are found, carry out rework or scrapping promptly to prevent defective products from flowing into the next process.
When reworking defective products, be extra careful not to damage the wire core. Reworked products should be marked separately and submitted to the QC (Quality Control) for confirmation of whether the length, etc. meets the requirements. Only after the QC confirms that they are qualified can they be put into the good-products category.
When repairing parallel wires, repair all the wires neatly. Do not repair only a single wire. When reworking a single wire, trim all the wires to be flat based on the shortest wire to ensure the neatness and consistency of the wires.
The machine-adjusting wires should be confirmed separately. Only after confirmation that they are qualified can they be put into the good-product category. At the same time, ensure that there is no oil pollution on the wires to prevent affecting the product quality.
VI. Flat - Cable Crimping Operation Instructions
(1) Operation Content
According to the requirements of the drawing or processing order, accurately obtain the corresponding specifications of wires and materials, and carefully confirm to ensure that the specifications and models of the materials are consistent with the requirements.
Accurately fasten the FC pressure head to the middle cover to ensure a tight combination, providing a good foundation for the subsequent crimping work.
Place the wire in it according to the direction required by the drawing, and align the wire end with the pressure head. This is one of the key steps to ensure the crimping effect.
Place the pressure head steadily in the crimping machine slot, and then pull the handle and press down evenly to complete the crimping action.
Take out the crimped wire and submit it to the QC (Quality Control) for confirmation. Only after the QC confirms that the product is qualified can mass production begin.
For products that need to be buckled with a reverse discount, buckle the reverse discount accurately according to the requirements of the drawing. Then neatly bundle the crimped wire and put it in a turnover box for convenient subsequent transfer and processing.
Fill in the engineering record card to record the relevant information about flat-cable crimping, such as wire specifications, material models, crimping quantity, etc., and paste the engineering record card outside the box and hand it over to the next-process workstation to do a good job in the hand - over between processes.
(2) Quality Highlights
The used materials must meet the requirements. Carefully check the specifications, models, and other information of the materials to ensure the quality and applicability of the materials.
The quality of the pressure head is equally important. There should be no missing pins, damage, or other phenomena. Before use, carefully check the appearance and quality of the pressure head to ensure that the pressure head can work normally and guarantee the crimping effect.
The cut of the wire should be flat, without a slanting mouth. The quality of the cut directly affects the firmness of the crimping and the appearance quality of the product. Strictly control the quality of the cut.
Pay attention to confirming the red-edge direction of the wire and the position of the first pin of the pressure head. This is one of the key factors in ensuring the correct direction and neat arrangement of the wire after flat-cable crimping, preventing product functional abnormalities or poor appearance caused by incorrect direction.
The wire end should not exceed the side of the pressure head or be incompletely crimped. Ensure that the wire end is completely pressed tightly by the pressure head to prevent the wire end from loosening, affecting the electrical performance and reliability of the product.
The pressure head and the reverse buckle should be buckled in place. This is an important link to ensure the firm and stable crimping of the flat - cable. Carefully check the buckling situation of the pressure head and the reverse buckle to ensure that they meet the requirements.
VII. Shielded Wire Operation Instructions
(1) Operation Steps
According to the requirements of the drawing or work order, accurately obtain the wires and sleeves of corresponding specifications to ensure that the specifications and models of the materials are in line with the requirements.
Carefully separate the shielding layer from the electronic wire in the wire. Operate with caution during the separation process to prevent damaging the wire.
Twist the shielding layer well. Apply even force when twisting to ensure that the twisted wire is even and smooth. There should be no phenomena such as loose twisting or scattered wire ends. This is one of the key steps to ensure the shielding effect.
Put the inner sleeve on from top to bottom to the bottom of the shielding layer, and then put on the outer sleeve properly. The outer sleeve must cover both the electronic wire and the outer sheath of the wire. In principle, the lengths on both sides should be equal to ensure that the sleeve is firmly and neatly sleeved.
After the sleeving is completed, arrange the sleeved wires neatly, tie them with rubber rings, and put them into boiling water for heat-shrinkage treatment. Control the temperature and time during the heat-shrinkage process to prevent uneven heat-shrinkage or damage to the sleeve.
After heat shrinkage, trim the shielded wire to the length required by the drawing. Be careful during the trimming process to prevent the wire core from breaking. Put the trimmed shielded wire into a turnover box and transfer it to the next process.
(2) Quality Highlights
The lengths and inner diameters of the inner and outer sleeves must strictly meet the requirements. This is one of the key factors in ensuring the correct sleeving and heat shrinkage of the sleeves. Before use, carefully check the specifications and quality of the sleeves to ensure they meet the requirements of the drawing.
When twisting the shielded wire, it should be even and smooth. There should be no loose-twisting or scattered-wire-end phenomena. This is an important aspect to ensure the shielding effect. Operate carefully during the twisting process, and control the force and method to ensure the quality of the twisted wire.
When trimming the shielded wire, be extremely careful to avoid breaking the wire core. At the same time, the stripping length should meet the requirements. Use appropriate tools and methods when stripping to prevent damaging the wire core.
After heat shrinkage, the shielded wire should not have exposed wire cores, damaged sleeves, or loose heat shrinkage. Control the temperature and time during the heat-shrinkage process to ensure a good heat-shrinkage effect, so that the sleeve can tightly wrap the wire, providing good insulation and protection.
If there are special requirements, follow the additional standards to ensure that the product can meet the special needs of customers.
For products that cannot be heat-shrunk with boiling water, use a hot-air gun for heat-shrinkage. When using the hot-air gun, control the temperature and distance to prevent uneven heat-shrinkage or damage to the sleeve and ensure the heat-shrinkage quality.
VIII. Packaging Operation Instructions
(1) Operation Steps
Based on the customer's purchase order and drawing, carefully check the product model to ensure that it is consistent with the customer's requirements, and prevent customer complaints or returns due to model errors.
Use an electronic scale to count the products and bundle them neatly. The quantity per bundle and the bundling method should be strictly implemented by the "Packaging Specification" to ensure the consistency and standardization of packaging.
Neatly put the counted wires into a packaging bag, and then seal the bag with adhesive tape or a sealing machine. The seal should be firm to prevent the products from scattering during transportation.
Fill out the certificate of conformity or material label, and mark the main information of the product, such as product model, quantity, production date, etc. on the label. Then stick the label on the outside of the packaging bag for easy identification and management by the customer.
Neatly place the packaged products in a carton, and paste the carton label. The carton label should indicate relevant product information, such as product model, quantity, customer name, etc. Then notify the QA (Quality Assurance department) for pre-shipment inspection.
After passing the inspection, seal the carton and place it neatly in the pre-shipment area, waiting for dispatch.
(2) Quality Highlights
During the packaging process, handle the products gently to prevent the terminals from deforming. Terminals are important components of the product. If they are deformed during packaging, it may affect the electrical performance and reliability of the product, so be especially careful.
For products with tin tips, wrap a protective paper around the tin tip to prevent oxidation, bending, and damage. The quality of the tin tip directly affects the welding effect and reliability of the product, so protective measures should be taken to ensure the quality of the tin tip.
The quantity per bundle or carton should be accurate. Count the quantity carefully to ensure it is consistent with the customer's requirements and prevent customer complaints or losses due to quantity errors.
For packaging with special customer requirements, strictly follow the customer's requirements to ensure that the product can meet the special needs of customers and improve customer satisfaction.
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