Quality Control in Socket Production (Part 1)
Pubdate: September 26th 2025 Preview: 0
At present, some companies’ socket production lines have not adopted intelligent manufacturing, and most still it is mainly manual operation, quality control from incoming materials to finished products requires QC personnel staff strictly monitor in accordance with requirements.
1. Incoming material quality control
The raw materials used for sockets are mainly plastic (such as PC, ABS, PP), Metals (such as brass, iron), electronic components used in circuit boards (such as resistors,capacitors, diodes), outsourced parts (such as screws,transformers, indicator lights), etc.
According to the company’s document regulations, standard requirements or technical references provided by technical personnel.
Several pairs of incoming materials are inspected and confirmed to check whether they meet the requirements. Inspection can be carried out by visual inspection, touch, sample comparison and other methods: Inspection Plastic particles, material particles should be uniform in size, free of moisture agglomeration and impurities; Check the screws, they should be free of deformation, pressure damage, rust, pollution, and defects. There is no coating peeling or other undesirable phenomena, and the color is uniform; check the circuit board, the circuit board surface.
The surface should be flat and clean, the plug-in holes should not be blocked, the pads should be even and smooth, without damage or peeling.
Layers and cracking phenomena.
Use vernier calipers, image projectors, etc. to check dimensions and structural parameters:
Measure the screw length, width, thread pitch, etc. The dimensions must be within the required tolerance range. Inside; use vernier caliper, Vickers hardness tester, etc. to test the thickness and hardness of the copper strip. Use instruments and equipment to check the physical and electrical properties of products: plastics The particles have been tested for flame retardancy and their flame retardancy level should be V-2; check the capacitance, resistance,Inductors, diodes, rectifier bridge piers and other electronic components, use multimeters, capacitors to measure. Test the inductance, Q value, output voltage and other parameters of the components with test instruments and other equipment; Use a multimeter to check the circuit board and test the continuity of the circuit.
Check product specifications: For plastic particles and metal materials, suppliers.
Provide a valid shipment inspection report; check the transformer specifications, windings.
Check whether the wire diameter, number of winding coils, winding method, dip soldering process, etc. meet the requirements. whether the certification of the skeleton, enameled wire and other materials is complete.
If it complies with the requirements, report the exception immediately and handle the abnormal incoming materials according to the company’s non-conforming product control procedures.
1. Incoming material quality control
The raw materials used for sockets are mainly plastic (such as PC, ABS, PP), Metals (such as brass, iron), electronic components used in circuit boards (such as resistors,capacitors, diodes), outsourced parts (such as screws,transformers, indicator lights), etc.
According to the company’s document regulations, standard requirements or technical references provided by technical personnel.
Several pairs of incoming materials are inspected and confirmed to check whether they meet the requirements. Inspection can be carried out by visual inspection, touch, sample comparison and other methods: Inspection Plastic particles, material particles should be uniform in size, free of moisture agglomeration and impurities; Check the screws, they should be free of deformation, pressure damage, rust, pollution, and defects. There is no coating peeling or other undesirable phenomena, and the color is uniform; check the circuit board, the circuit board surface.
The surface should be flat and clean, the plug-in holes should not be blocked, the pads should be even and smooth, without damage or peeling.
Layers and cracking phenomena.
Use vernier calipers, image projectors, etc. to check dimensions and structural parameters:
Measure the screw length, width, thread pitch, etc. The dimensions must be within the required tolerance range. Inside; use vernier caliper, Vickers hardness tester, etc. to test the thickness and hardness of the copper strip. Use instruments and equipment to check the physical and electrical properties of products: plastics The particles have been tested for flame retardancy and their flame retardancy level should be V-2; check the capacitance, resistance,Inductors, diodes, rectifier bridge piers and other electronic components, use multimeters, capacitors to measure. Test the inductance, Q value, output voltage and other parameters of the components with test instruments and other equipment; Use a multimeter to check the circuit board and test the continuity of the circuit.
Check product specifications: For plastic particles and metal materials, suppliers.
Provide a valid shipment inspection report; check the transformer specifications, windings.
Check whether the wire diameter, number of winding coils, winding method, dip soldering process, etc. meet the requirements. whether the certification of the skeleton, enameled wire and other materials is complete.
If it complies with the requirements, report the exception immediately and handle the abnormal incoming materials according to the company’s non-conforming product control procedures.
