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Product Quality Inspection

Quality inspection is the work of inspecting and evaluating products, services or work processes to ensure that they meet relevant standards and requirements. The role of QA is to ensure product quality, improve productivity, satisfy customer needs and contribute to the sustainable development of the organization. You can fully trust our products, we have a professional quality inspection department to guarantee the products.

1. Checking product quality: Quality inspectors verify whether the quality of the products meets the relevant standards and requirements by sampling, testing and measuring the products. They will check the appearance, size, function and performance of the products, find the defects and non-conformities of the products, and make suggestions for improvement.
2. Formulate inspection standards: QC personnel formulate appropriate inspection standards and processes according to product characteristics and industry standards. They will refer to relevant regulations, national standards, industry norms, etc., to develop feasible inspection programs to ensure the accuracy and reliability of the quality inspection work.


3. Conduct quality management: QC personnel participate in the establishment and implementation of the quality management system, supervise the key links and key parameters in the production process of the products to ensure that the products meet the quality requirements. They will conduct quality records and statistical analysis to detect problems and take corresponding corrective measures in time.
4. Assist in problem solving: When quality inspectors find product quality problems or customer complaints, they will assist relevant departments in problem analysis and solution. They will help the company to improve product design and production process through data analysis and process optimization to improve product quality and customer satisfaction.
5. Training and guidance: QC staff will organize training and guidance to improve employees' quality awareness and quality skills. They will teach quality knowledge to production staff and related positions, promote good quality management practices, and improve the quality level of the whole enterprise.

6. Commonly used quality inspection methods for products: 

such as Table I

Table I Main testing equipment and instruments

Equipment Name Specification Manufacturer Quantity (units) Testing items
Spectral Direct Reading Instrument PMI-MASTER Pro West Germany 1 Material Analysis
Microcomputer high-speed analyzer JSB3A Nanjing(China) 1 Material Analysis
Computerized multi-element analyzer JSB-A Nanjing(China) 1 Material Analysis
Automatic carbon and sulfur analyzer QR-4 Nanjing(China) 1 Material Analysis
Richter hardness tester HLIV-11 Beijing(China) 1 Hardness Test
Hardness Tester HL-11A Beijing(China) 1 Hardness Test
Portable dual-use metallographic microscope ×BL-1 Nanjing(China) 1 Metallographic Analysis
Digital Yu on-site metallographic instrument XJB-200S Beijing(China) 1 Metallographic Analysis
Ultrasonic thickness gauge TT100 Beijing(China) 1 Wall thickness measurement
Ultrasonic thickness gauge 10001 Beijing(China ) 1 Wall thickness measurement

There are many other inspection methods such as RT, UT, MT, PT, ET, where RT and UT are mainly used to detect internal defects in the specimen, and MT and ET are mainly used to test for surface and near-surface defects in the specimen.