The development process of Grinding Media Balls in China

my country's steel ball manufacturing has a long history of development. During the Anti-Japanese War, China's first bearing production factory was established in Wafangdian in order to adapt to the maintenance of ordnance, which is the predecessor of the current ZWZ.

Due to backward technology, it was impossible to manufacture steel balls by itself. At that time, in order to control the production technology of Chinese bearings, steel balls were always produced in Japan, and then shipped to China for assembly.

In the early days of liberation, some workers in the Wafangdian Bearing Factory decided to make steel balls by themselves, unwilling to be outdone. With no technology, no drawings, and very backward equipment, they made the first steel ball in Chinese history by themselves. Created the development history of Chinese steel balls.

Tracing back the history of the development of steel balls in the world, it can be seen that Germany built the world's first ball grinding machine in 1883. Although the shape is primitive and the structure is simple, it is the first to manufacture steel balls for human beings.

After the liberation of our country, in order to restore the national economy as soon as possible, the central government established the guiding ideology of industrial development and established a large number of backbone enterprises.

However, bearings, as an indispensable and important part of gold, agricultural machinery, chemical industry, automobiles, tractors, machine tools, and military industries, were in a very backward position in technology, and bearings undoubtedly became the key development industry at that time. ZWZ became the first batch of key development enterprises.

In order to adapt to the development as soon as possible, the advanced steel ball production technology and equipment had to be imported from the Soviet Union, and special personnel were sent to the Soviet Union to study. In the 1950s, Luoyang Bearing Factory was established in Luoyang, which marked that my country's bearing industry has a systematic, large-scale, Industrial production capacity. At that time, there were some restrictions, mainly due to the influence of the reproduction of the Soviet production model. At the beginning, a company completed the production from the original to the assembly. The steel ball is an important component of the bearing. In order to meet the needs of major bearing factories, with the help of the Soviet Union Under the establishment of a workshop and a steel ball factory specializing in the production of steel balls, mass production of steel balls began.

ZWZ, HaZhou and LuoZhou can be said to be the birthplace of Chinese steel balls. At that time, their equipment and craftsmanship were not much different. Now many enterprises still continue the original production process: adopting the method of cold heading-hard grinding.