Introduction of quality inspection

Quality inspection is also called "technical inspection". It is a quality management method to determine the quality characteristics of products by certain inspection and test means and inspection methods, and compare the measurement results with the specified quality standards, so as to judge whether the products or a batch of products are qualified or unqualified. The purpose is to ensure that unqualified raw materials are not put into production, unqualified parts are not transferred to the next process, and unqualified products are not delivered; Collect and accumulate data reflecting quality status to provide information for measuring and analyzing process capability, supervising process and improving quality. The quality inspection provided by Marsky includes pre-production inspection, initial production inspection, production inspection period and pre-shipment inspection. This article will briefly introduce the quality inspection service of our company. The following is the content list of this article:

Related concepts of quality inspection

Common methods of quality inspection

Methods and steps of quality inspection

Related concepts of quality inspection

quality inspection refers to the activities of one or all characteristics of an entity, such as measurement, inspection, test and measurement, comparing the results with the specified requirements, and determining the qualification of each characteristic. Experts believe that quality inspection is an activity to observe, measure and test one or more quality characteristics of products, and compare the results with the specified quality requirements to judge whether each quality characteristic is qualified or not.

Common methods of quality inspection

The methods of quality inspection can be classified according to different marks.

(1) Divided into full inspection according to the inspection quantity; Sampling inspection

(2) It is divided into counting inspection according to the quality characteristic value; Metrological Inspection

(3) It is divided into physical and chemical inspection according to inspection technology and methods; Sensory examination; Biological examination

(4) It is classified as destructive inspection according to the integrity of the inspection object after inspection; Non destructive inspection

(5) Divided into fixed inspection according to the inspection location; Flow inspection

(6) According to the inspection purpose, it is divided into production inspection, acceptance inspection, supervision inspection, verification inspection and arbitration inspection

(7) According to the supply-demand relationship, it is divided into first-party inspection, second-party inspection and third-party inspection

Methods and steps of quality inspection

There are generally two methods of quality inspection:1. Full inspection; 2. Sampling inspection.

According to different characteristics and requirements of products, quality inspection methods are also different:

1. According to the order of inspection, there are pre inspection, intermediate inspection and final inspection.

2. According to different inspection locations, it is divided into fixed inspection and mobile inspection.

3. According to the preventive nature of inspection, it can be divided into first article inspection and statistical inspection.

The steps of quality inspection are generally carried out in the following five steps

1. Define the inspection items and quality requirements of each item according to the product technical standards;

2. Specify appropriate methods and means to measure products with the help of general measuring tools or mechanical and electronic instruments and equipment;

3. Compare the test data with the standard and specified quality requirements;

4. Judge whether a single product or batch of products are qualified according to the comparison results;

5. Record the obtained data and feed back the judgment results to relevant departments, so as to promote them to improve the quality.

Marsky provides high-quality quality inspection service. You can safely give us your favorite products. If you are interested in our service, please leave a message: Alex qin@marsky -solutions. com