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May 28th, 2022, a group of four businessmen from Finland Qingdao office visited Shandong Jinchi Heavy Industry Co.

In order to pay attention to the development of the professional skills of front-line employees and consolidate the basic work of the company's various undertakings, the HR Department of the company carried out the first "front-line employees' professional skills evaluation" in 2022, with a warm response. The "Professional Skills Appraisal for Front line Employees" was launched in September 2022. A total of 48 employees participated in the appraisal.

1.Select the gorgeous steel. Forged steel balls are typically made of carbon metal or alloy steel, relying on the reason of the metal balls you favor to produce.2.Pre deal with the steel. This step typically consists of warmness treatment, cooling and metal processing.3.The metal is put into a forging computing device for forging. This step normally consists of two stages: warm forging and bloodless forging.

1.Select the appropriate steel. Forged steel balls are usually made of carbon steel or alloy steel, depending on the purpose of the steel balls you want to produce.2.Pre treat the steel. This step usually includes heat treatment, cooling and steel processing.3.The steel is put into a forging machine for forging. This step usually includes two stages: hot forging and cold forging. Hot forging is the process of heating steel to a high temperature and then shaping it with hammer or pressure.

For a long time, some ferrous metal (iron ore) and nonferrous metal beneficiation industries at home and abroad still use low chromium ball and forged steel ball as abrasives and are still widely used.

① Material density influence: steel balls, cast iron balls, alloy steel balls, etc. Different materials have different densities. The density of steel is higher than that of cast iron, while that of alloy steel varies according to the density and content of main alloy elements.Stainless steel ballStainless steel ball.② Influence of steel ball manufacturing method: rolled and forged steel balls have dense structure, so the density is high.

When producing forged steel balls, the following points should be noted:During forging, the temperature of steel will rise, so pay attention to prevent burns and scalds.During the forging process, the steel will be subjected to high pressure and hammering, so care should be taken to prevent accidental injury.A lot of noise and vibration will be generated during forging, so attention should be paid to hearing protection and body protection.A lot of heat and smoke will be generated during forging, so good ventilation and respiratory protection shall be paid attention to.The shape of steel will c

In the field of wear-resistant steel balls, there are two types of steel balls that operate in ball mills or semi-automatic mills, one is forged steel balls (YB/T091-2019), and the other is cast steel balls (YB/T092-2019). Both belong to grinding steel balls and are applicable to different fields such as mining and cement. What are the differences between these two types of steel balls1.

1. The raw material of forged steel ball is hot-rolled round steel. The grain size, non-metallic inclusion, central porosity, ingot segregation and other data comply with the relevant national standards. It has all the characteristics of high-quality steel and becomes a high-quality grinding ball after forging, rotary cutting and heat treatment.2. Rotary cutting steel ball realizes mechanical automation production. The automation degree from steel ball forming to heat treatment is very high to avoid unstable quality caused by manual operation.3.

According to the production and processing technology, steel balls are divided into grinding steel balls, forging steel balls and casting steel balls. According to the processing materials, it can be divided into bearing steel balls, stainless steel balls, carbon steel balls, copper bearing steel balls, alloy balls, etc. Among them, bearing steel ball is an important basic component of industry, and alloy steel ball is a spherical ferroalloy wear-resistant body which is produced by forging, spinning, rolling and casting with carbon, chromium, manganese, molybdenum, etc.