Quality Requirement Analysis of Abrasive Grains

Quality requirement analysis is the first step of abrasive grains quality control. Quality requirement analysis is an important link in quality control, and also the significant ground of quality control. Firstly, people should understand what are the requirements for users, and then take users' requirements as the requirements of abrasive grains inherent characteristic.

User requirements usually include grinding efficiency, grinding surface roughness, surface scratches, the size of cracks, the sanding of electroplating products, the adaptability for users and grinding objects, etc.

Inherent characteristics of abrasive grains include the hardness of abrasives, chemical stability, chemical composition, grain composition, uniformity of particle size distribution, particle shape, the existence of large particles, impurity content, etc. The requirements of users on the use of performance specifically reflect the inherent characteristics of abrasive grains. These inherent characteristics can be controlled, and also need detailed analysis, which is the hardest link of quality control, and is also easy to be ignored.

These inherent characteristics of abrasive grains are closely related to the using performance, which mainly include large particles, particle shape, grain composition, and content of impurities.

The grain composition reflects the thickness of abrasive grains, which is determined by the methods and technology of users. The thickness and particle size distribution directly influence grinding surface roughness and grinding efficiency.

Abrasive particle shape is related with manufacturing process of abrasive grains, and the particle shape will influence grinding efficiency. What kind of abrasive particle shape can meet the needs of users is decided by the conditions and technology of users. Abrasive particle shape (especially micro powder) is the important basis to distinguish abrasive grade or category, and also the important technical parameters in recent decades.

Abrasive grade is not similar to the quality of abrasive grains, and good grade is not equal to good quality. Abrasive grade is a concept to measure the differences of abrasive grains. The quality is a concept that could satisfy the requirement of application. Therefore, we cannot blindly evaluate.

The influence of abrasive impurities content on the quality of abrasive grains is comprehensive, which also affects grinding effect and grinding efficiency, and even the grinding performance.