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What is a cast steel ball? How many types can cast steel balls be classified based on their chromium content?
2023-04-25
Chromium content 1% -3%, hardness HRC ≥ 45. This standard wear-resistant steel ball is called a low chromium alloy cast ball, which is developed using medium frequency electric furnace melting, metal mold or sand mold casting. Its performance is suitable for some metallurgical mines, slag and other industries with low grinding accuracy requirements and low wear consumption.
Welcome customers to Division I visited France
2015-09-26
A warm welcome to the French company to Division I inspected ball production environment and export processes. For comments raised by customers, sales manager and general manager have made a detailed record and specialized seminars. Gradually improve the sound the ball the whole process from mining to expect exports
China's steel exports have fallen sharply curb exports policy
Statistics show that China's steel exports in April year on year increase of one hundred forty-six percent in August, down to around 40 percent in September fell 9.1% return four. If the steel export in September, converted into crude steel billet
China Foundry Association amendments to the Constitution
China Foundry Association, China Foundry Association to amend the statute to amend the statute China Foundry Association to amend the statute China Foundry Association to amend the statute China Foundry
Is there no difference between high chromium balls and medium chromium balls, low chromium balls, and forged steel balls?
Different quality indicators for high chromium balls: Chromium content ≥ 10.0% and carbon content between 1.80% and 3.20% are called high chromium balls. According to national standards, high chromium balls must have a hardness (HRC) of 58 or above and an impact value of ak ≥ 3.0J/cm2. To achieve this hardness, high chromium balls must be subjected to high-temperature quenching and tempering treatment (currently, there are two quenching methods in China: oil quenching and air quenching), If the hardness (HRC) is lower than 54, it indicates that the steel ball has not undergone quenching treatment.
Common problems and introduction of steel balls
The quality of the steel ball determines the efficiency of the work process, and if the purchased steel ball does not meet the quality standards, it will cause the steel ball to be easily damaged during the work process. Crushing: mainly because the composition of the steel ball does not meet the standards, the method is not handled properly, or the use of inferior materials causes the steel ball to contain impurities, which is why it is broken.