Production technique for small precision bearing steel ball

Abstract

The invention discloses a production process of small and micro precision bearing steel balls. The main process includes: cold heading→light ball→heat treatment→hard grinding→cold pickling→strengthening→cleaning→primary grinding→precision grinding→finished product cleaning→photoelectric appearance inspection → Anti-rust packaging, etc.; the precision grinding process is concentrated in a closed space, and a special industrial vacuum cleaner is responsible for the sanitation in the closed space to ensure cleanliness; the temperature is controlled at 23±2°C by industrial air conditioning; when the air humidity is less than 60 %, the room air humidity is controlled at 60-65% by spraying clear water mist to the room. The invention ensures that the precision grinding process in the production process of the small and micro bearing steel balls is always carried out in an airtight, constant temperature, dust-free and moisture-retaining airtight space. The good processing environment ensures the quality of G10 and even G5 small and micro high-end bearing steel balls.

Description

technical field [0001] The invention relates to the field of bearing steel balls, in particular to a production process of small and micro precision bearing steel balls. Background technique [0002] Bearing steel balls are important basic components, especially small and micro precision bearing steel balls play a huge role in the development of the national economy. Under some special conditions, steel balls of special materials are often required to complete the functions required in different environments. In fact, some special material steel balls have been widely used in various fields of the national economy, including 9Cr18, 3Cr13 stainless steel, copper, aluminum, titanium alloy steel, agate, glass, ceramic balls, etc. Their popularization and application not only promote the development of the steel ball production industry, but also promote the technological development and scientific and technological progress of related industries. [0003] At present, in the p...

AI Technical Summary

Problems solved by technology

Air temperature and humidity are difficult to control due to high air circulation

What's more, due to the inevitable dust and suspended matter in the air, falling into the feed pan of the refiner will cause the surface of the steel ball to be scratched by sundries. Viscous, the produced steel balls are difficult to guarantee high-end quality requirements