Why Can We Always Ensure Excellent Quality

Quality Control

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How control the quality:

First, the establishment of efficient process patrol function, that is, the establishment of IPQC for process inspection. The main control due to process methods, with the wrong material, color, size and other bulk quality problems, but also other time to monitor the problems. IPQC must specify the number of inspection intervals, check the number of times, and fill in the checklist, the main record of bad items, the issue of important quality issues CAR (corrective action report) to improve.

Second, the establishment of FQC in the process for a fixed test, under normal circumstances is the whole inspection operations, such as the workshop to the end of the product, or one or two processes a class of production, you can use FQC to ensure product quality, the same to fill Check the table for bad analysis.

Third, how to make IPQC, FQC homework?

1. the quality control department to receive the system, the original board, the need to do a "product inspection instructions", which details the test items (appearance, size, function, structure, etc.), indicating a particularly prone to quality problems The original board is easy to produce when the bad phenomenon). And the defect in the inspection project is divided into CR (serious or fatal flaw), MAJ (main defects), MIN (minor defects) three levels to determine.

2. When the workshop production of large goods, the workshop leader to be the first piece, the first self-test OK to fill in the "first model to confirm the report" (in duplicate), and then attached to the first model with the Department of Quality Control, After the inspection, the test results will be filled in the "first sample confirmation report", "the first model to confirm the report" on the marked or not, usually half an hour with the "first model to confirm the report" second joint reply workshop, Qualified to sign the first model attached to the "product inspection instructions", to pay IPQC for the quality of the process to determine the basis for testing. Unqualified direct response to improve the workshop, the workshop improved after the good return to self-test, re-send the "first model to confirm the report" and the first model, until OK.

3. If the quality control department to confirm a long time, more than half an hour, short delivery period, the factory approved, the workshop can be self-test, first self-production, IPQC according to "product inspection instructions" inspection. The first piece of confirmation is conducive to the process, with the wrong material, color, size and other issues of batch rework. Production workshop based on "the first model to confirm the report" and the first model work.

4. IPQC according to the tour inspection time interval, the number of inspection once, the first model, "the first model to confirm the report", "product inspection instructions" for inspection operations. Such as in the tour inspection found in quality problems, IPQC need to go back to the last inspection period, blocking the bad goods downstream.

5. FQC also based on the first model, "the first model to confirm the report", "product inspection instructions" for inspection operations. IPQC tour test found in the poor project statistics provided to the FQC, so that FQC IPQC test bad items for key testing. Qualified paste "PASS" under the goods, unacceptable "NG" rework, difficult to determine the quality of the matter submitted to the material audit team, by the material audit team for the final decision.

Fourth, if you want a better quality assurance, in the IPQC, FQC set up QA, FQC test after the product sampling, you can use the US military standard 105E sampling plan, or China GB2828 sampling test program and other standards, take a certain AQL value, such as AQL: CR = 0 MAJ = 1.5 MIN = 2.5, and then check the strict distinction:

1, the normal test: under normal circumstances to take such tests, inspection level to take "Ⅱ";

2, strict test: continuous 5 batches of two batches were rejected when the use of such tests, the test level to take "Ⅲ";

3, relaxation test: 10 consecutive batches of all received when using this test, check the level of "Ⅰ" In the case of inspection, if the quality of the approved batch is improved, and the continuous 5 batches are received, they can return to the normal inspection, and vice versa.

In the case of relaxation test, if there is a batch of unqualified, it is necessary to return to the normal test state. In particular, the product is subject to strict and relaxed inspection. These measures are conducive to the rational allocation of manpower, so that QA have more time for shipment inspection, so the ultimate goal is to effectively ensure the quality of the product.