Quality Control and Inspection Strategies for the Whole Process of Powder Making

Quality control and testing in the powder milling process is an important part of ensuring that the final product meets quality standards and customer requirements. This process involves many aspects from raw material selection, production process control to finished product testing.

Raw material quality control

First of all, the quality of raw materials plays a decisive role in the final quality of powder products. In the powder making process, solid materials such as synthetic resins, fillers, pigments, curing agents and auxiliaries that meet the standards should be strictly selected. These raw materials must meet the basic requirements of chemical stability, non-toxicity, light color, etc., to ensure that they will not react adversely with other components during the production process and can be uniformly dispersed in the system. At the same time, the management of suppliers should be strengthened, suppliers with stable quality level should be selected, and the raw materials should be strictly inspected in the factory to ensure that they meet the quality requirements.

Production process control

During the production process, the operation should be carried out in strict accordance with the operating procedures to ensure that each process meets the quality requirements. For example, in the pre-mixing stage, it should be ensured that the mixer has good homogenizing and dispersing ability to ensure that the components can be fully mixed. In the melt mixing and extrusion stage, the appropriate extrusion temperature should be controlled, so that the material can form a uniform system in the heat melting process. In addition, the production equipment should be regularly maintained and serviced to ensure that it is in good working condition.

Finished product inspection

Finished product testing of powder products is an important part of quality control. The testing program usually includes composition analysis, physical property testing, process performance testing and other aspects. For example, the chemical composition of the powder products such as carbon content, sulfur content, oxygen content, etc., as well as physical properties such as average particle size, specific surface area, bulk density, fluidity, etc. can be tested. These testing items help to provide a comprehensive understanding of the product's performance and quality status, and provide a basis for subsequent improvement and optimization.

Testing Standards and Methods

In order to ensure the accuracy and comparability of the test results, the test should be carried out in strict accordance with the relevant national standards and industry norms. For example, metal powder can be tested with reference to the GB/T series of standards, and various methods such as funnel method, dry sieve analysis method and Latola test can be used. Meanwhile, high-precision testing equipment can also be used to comprehensively test the appearance and morphology, chemical composition, particle size distribution and other characteristics of the powder products to ensure that the products meet the factory requirements.

Continuous improvement and optimization

Quality control and testing in the powder manufacturing process is a process of continuous improvement and optimization. Enterprises should continuously adjust and optimize the production process and formula to improve the quality and performance of products according to changes in market demand and customer needs. At the same time, it should also strengthen the construction of quality culture, improve the quality awareness of all employees, and ensure that each link meets the quality requirements.

To summarize, quality control and testing in the powder milling process is a complex and important process. By strengthening the management of raw material quality control, production process control and finished product testing, we can ensure that the quality and performance of powder products meet the standards and requirements.