(under the Quality Control Department)
1. Be responsible for first article inspection, partial process inspection, and identification and statistics of defective products in process;
2. Be responsible for patrol inspection, and regularly check all links such as material use, assembly operation, machine operation and environmental compliance in the whole production process.
3.IPQC is generally the first inspection, sampling inspection and sampling inspection; It is a roving flow check in the process; It belongs to the management of quality control department.
Production process inspection (IPQC): Generally speaking, it refers to the quality control of production activities from material warehousing to finished product warehousing, that is, process quality control. Compared with the quality inspection at this stage, it is called FQC (Final Quality Control).
① The methods of process inspection mainly include:
A. First article self-inspection, mutual inspection and special inspection are combined;
B. combining process control with sampling inspection and inspection;
C. multi-process centralized inspection;
D, testing step by step;
E. product inspection after completion;
F. combination of sampling and full inspection;
② Process quality control (IPQC): it is a patrol inspection of the production process.
A. first article inspection;
B. material inspection;
C. Patrol inspection: ensure proper patrol inspection time and frequency, and conduct inspection in strict accordance with inspection standards or work instructions. Including the inspection of product quality, process regulations, machine operation parameters, material placement, identification and environment. D. inspection records shall be truthfully filled in.
③ Process product quality inspection (FQC): it is used to verify the quality of products after completion, so as to determine whether this batch of products can flow into the next process, which belongs to fixed-point inspection or acceptance inspection. A. Inspection items: appearance, size, physical and chemical characteristics, etc. B. inspection method: sampling inspection is generally adopted; C. unqualified handling; D. recording;
④ Standards: work instructions, process inspection standards, process inspection and test procedures, etc.
Quality inspection method
1. Full inspection: an inspection method for all products or materials submitted for inspection without omission. Applicable to the following situations:
① Small batch, simple inspection and low cost;
② The product must be qualified;
(3) If there is a small amount of unqualified products, it may lead to a fatal impact on the products.
2. Sampling inspection: it is a typical statistical inference to select some individuals from all individuals of a batch of products for inspection and judge whether the whole batch of products is qualified according to the inspection results of the samples.
① Applicable to the following situations: a. Destructive tests are required for product performance inspection;
B. The batch is too large to be inspected completely;
C. It needs longer inspection time and higher inspection cost;
D. a certain degree of defective products is allowed.
② Relevant terms in sampling inspection:
A. Inspection lot: the same products are gathered together as sampling objects; Generally speaking, a production batch is an inspection lot. A production batch can be divided into multiple inspection lots, but an inspection lot cannot contain multiple production batches, and inspection lots cannot be combined at will.
B. Batch number: the number of units contained in the batch;
C. Sampling quantity: the quantity of products extracted from this batch;
D nonconformity judgment number (RE): short for Reject, indicating rejection;
E. Eligible decision number (AC): abbreviation of receipt and acceptance;
F. Qualified Quality Level (AQL): short for acceptable quality level. Generally speaking, it is the acceptable rate of unqualified products.
3. Determination of sampling scheme: The sampling scheme adopted by our factory is designed according to the national standard GB2828 "Sampling Procedure and Sampling Table for Batch Inspection and Counting". The specific application steps are as follows:
(1) Determine product quality standards:
② Selection of inspection level: General inspection level is divided into I, II and III levels; The special inspection levels are S- 1, S-2, S-3 and S-4. In general, the general level 2 is adopted.
(3) Selection of Qualified Quality Level (AQL): AQL is the main basis for selecting sampling scheme, which should be jointly agreed by producers and users.
(4) Determine the sample size code, that is, the number of samples.
⑤ Select the sampling scheme type: such as normal sampling scheme, strict sampling scheme or multiple sampling scheme.
⑥ Look up the table to determine the qualified judgment number (AC) and unqualified judgment number (Re).
Chinese full name QC: abbreviation of English QUALITY CONTROL, which means quality control and quality inspection in Chinese. Its definition in ISO 8402: 1994 is "operation technology and activities that meet quality requirements". Some organizations that implement ISO9000 will set up such departments or posts to be responsible for the quality control functions required by ISO9000 standards. Personnel engaged in this kind of work are called QC personnel, which are equivalent to product inspectors in general enterprises, including incoming inspectors (IQC), process inspectors (IPQC), final inspectors (FQC) and outgoing inspectors (OQC).
The Chinese full name of QA: the abbreviation of English QUALITY ASSURANCE, which means quality assurance in Chinese. In ISO 8402: 1994, it is defined as "all planned and systematic activities implemented in the quality management system, and verified as required to provide sufficient trust to show that the entity can meet the quality requirements". Some organizations that implement ISO9000 will set up such departments or posts to be responsible for the quality assurance functions required by ISO9000 standards, and the personnel who hold such jobs are called QA personnel.
IPQC: English is the abbreviation of process quality control, and Chinese means process inspection. People who do this kind of work are called process inspectors.
JQE: the abbreviation of English Joint Qualification Engineer, which Joint Qualit Engineer or customer engineer in Chinese, or Joint Qualification Engineer, that is, the quality engineer hired by the supplier to work for the customer, is the eyes and ears of the customer SQE.
IDQA: abbreviation of English Design Quality Assurance, which means design quality assurance in Chinese, such as DQA manager (design quality certification manager).
SQE: abbreviation of English supplier quality engineer, which means supplier quality engineer in Chinese.
In addition, there are
DQC: abbreviation of English Design Quality Control, which means design quality control in Chinese.
MQC: English is the abbreviation of Manufactor Quality Control, and Chinese means process quality assurance.