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Main work content and precautions of two-color injection molding inspection management

by:Vowin Rapid Prototyping     2023-02-17
1. Finished product inspection (FQC) process


The main work content and precautions of the two-color injection molding inspection management are carried out by the inspectors for warehousing inspection; individual accounts are borrowed. Unqualified products are not eligible for delivery. The MRB meeting is held for employment; the non-conforming products are disposed of according to the conclusion of the MRB meeting.


2. Finished product inspection (FQC) control


The FQC of Shanghai Mulan Two-color Injection Molding Factory conducts final inspection of the two-color injection products produced by each machine every 3 hours. If the random inspection is unqualified, fill in the unqualified report and report to the production technician. The production technician presides over the MRB meeting. The problem will be dealt with, and the results of the deal will be recorded in the 'FQC Inspection Report'. Goods that pass the final FQC inspection will be stamped with a blue FQC+ number stamp in time for warehousing operations.





3. The main work content and precautions of the inspector (FQC)


(1) Sampling inspection shall be carried out according to the provisions of the inspection documents, and it is generally stipulated that a final inspection shall be carried out every 3 hours.


(2) Sampling inspection shall be carried out according to 2~3 molds/3h when inspecting the size, color difference or assembly experiment of two-color injection molding products.


(3) During the final inspection, it is necessary to check whether the qualification certificate of the two-color injection molding product is filled in correctly, especially the color of the product and the top, bottom and left and right of the product.


(4) Sampling must be done at random to prevent sloppy behavior due to troublesome shooting.


(5) When found to be unqualified, it must be marked and isolated in time, and a 'Report of Unqualified' shall be issued and passed to the relevant responsible personnel for review and processing.


(6) All unqualified products shall be re-inspected in time after being reworked again, and the 'Report of Unqualified' shall be reopened if the re-inspection fails.


(7) It is necessary to do a good job of handover and communication with PQC to prevent batches of defective products


(8) When the work is beyond the scope of one's own work ability, it is necessary to give timely feedback to the QC supervisor and make further disposal opinions.


4. Outgoing inspection (OQC) control


The inspectors of Shanghai Mulan Two-color Injection Molding Factory conduct sampling inspections on Class A and B two-color injection molding products in accordance with MIL-STD-105EII, and the inspection results are filled in the 'OQC Inspection Report'. Such as size, weight, function, etc., if it is found not to meet the requirements during the inspection process, all sampling samples will be inspected.





If it is judged to be unqualified, OQC personnel will record the unqualified condition in the unqualified report. After confirmation by the inspection supervisor, OQC personnel will stamp a red unqualified seal on the outer box label of the two-color injection molding product, and record the inspection result on the 'OQC Inspection Report'. Disqualification shall be reviewed and dealt with according to the authority, and if it can be properly disposed of within the scope of the inspection supervisor’s ability, the inspection supervisor shall preside over the B meeting. The quality personnel held an MRB meeting and asked the responsible department to propose countermeasures.


The main work content and precautions of the two-color injection molding inspection management. If it is judged to be qualified, the blue shipment inspection mark will be stamped and the shipment operation will be carried out. The shipping inspection stamp is composed of inspection date, inspection site, and OQC code. For the determination of rework, the workshop, technical, and quality personnel will determine the rework process for the defect and carry out the rework. OQC inspects its rework process. If there is no treatment plan for the time being and further verification is required, the product will be withheld for disposal. Rework operations are not allowed in the warehouse, and all reworked products will be reworked in the designated area after being taken out by the rework personnel to the warehouse. In case of special circumstances, it is necessary to apply to the competent department of the warehouse and the supervisor of the quality department, and only after permission can the repair work be carried out in the designated area of ​​the warehouse. For finished products after rework, inspectors should carry out re-inspection.


Before shipment from Shanghai Mulan Double-color Injection Molding Factory, OQC inspectors will inspect and confirm the truck container and booking form, container number, and license plate number according to the shipping notice and inspection instruction to ensure that the goods are loaded into the correct container and truck , delivered to the designated customer, and record the inspection time and inspection results in the 'OQC Inspection Report'. When the storage time of the inventory reaches 3 months, the warehouse keeper of the warehouse is responsible for notifying OQC, and OQC conducts random inspection according to MIL-STD-105EII, and the inspection results are filled in the inspection report. When the finished product in stock is found to be defective in inspection, OQC will issue a non-conforming report, and after confirmation by the inspection supervisor, technical, production workshop, and quality inspection personnel will be called to confirm the non-conforming product. Technology, two-color injection molding production workshop, and quality inspection personnel's handling of unqualified products are filled in the unqualified report, and rework personnel will handle unqualified products.





If it is ruled to be 'special mining', it needs to be signed by the technical, two-color injection molding production workshop, and the responsible person of the business department. If necessary, the customer's consent must be obtained before special mining. If it is ruled as 'rework', the technical and quality personnel will guide the rework operation, and OQC will re-inspect the rework. Inspection related records shall be kept for at least 2 years.


5. Main work content and precautions of outgoing inspection (OQC)


(1) OQC completes the inspection tasks in time according to the shipment inspection plan every day.


(2) OQC conducts inspections in strict accordance with the requirements of inspection instructions, samples, drawings, and technical documents.


(3) When a non-conforming product is found, a non-conforming report should be issued in time, and it should be passed to the relevant department for review and processing. At the same time, the non-conforming product should be marked and isolated with a red non-conforming product seal.


(4) The main work content and precautions of two-color injection molding inspection and management. All reworked two-color injection molding products need to be re-inspected and confirmed.
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