Nowadays, there are more and more manufacturers of steel shot and steel sand, and the quality is also uneven. Many dealers can't help being cheated, so it's not only time-saving and labor-saving to buy a good steel shot and steel sand, but also a lot of trouble.

　　As a production tycoon, Hongxin steel pill has always been among the best in the industry, with an annual sales volume of millions of tons. The following is a brief summary of the characteristics of steel shot and sand made by Hongxin steel shot knitter. I hope it can help you.

　　The standard of high-quality steel shot and sand can act more kinetic energy on the surface of the workpiece, effectively play the role of cleaning and strengthening, have enough long anti fatigue life, and reduce the consumption in use. We have done a good job in this regard. So we summarize the following points about Hongxin's steel shot and sand.

　　1、 Moderate chemical composition

　　Based on many years of production experience, this paper summarizes some rules - chemical composition is the most basic index of steel shot and steel sand, which will determine the microstructure of steel shot and steel sand and the effect of post heat treatment. According to the national standard for high carbon cast steel shot and sand: carbon (c) content: 0.85-1.20%; silicon (SI) content: ≥ 0.40; manganese (MN) content: 0.35-1.20%; sulfur (s) content: ≥ 0.05%; phosphorus (P) content: ≥ 0.05%. The small edition of Hongxin steel pill tells you quietly: silicon and manganese can improve the strength and hardness of the steel pill, and try to be as high as possible (with no less than 0.7% as the best). The content of Hongxin steel pill steel sand is above the best standard, and the specific batch can refer to the test report of steel pill steel sand. Sulfur and phosphorus are harmful elements, which are easy to cause brittleness of steel shot and lead to premature fracture, so it should be as low as possible (with < 0.03% as the best).

　　2、 Proper hardness

　　If the steel shot or sand is too soft, it will slow down the cleaning speed and reduce the working efficiency. During shot peening, too soft steel shot can not produce suitable residual stress, and the force of low hardness shot can not be compensated by increasing the impact time. If the hardness is too high, it will produce an unsatisfactory surface morphology, increase the probability of fragmentation of the projectile, make the consumption too high, and wear the equipment greatly, it will increase the maintenance cost of the equipment, so the appropriate hardness is also very important, which is one of the reasons why the non-standard steel shot steel sand has a relatively high crushing rate.

　　3、 Resist deformation and increase usage

　　The microstructure of Hongxin steel shot (sand) can resist deformation, reduce energy loss and increase fatigue life when it acts on working face. In addition, our production process will reduce fragile carbide, resist premature rupture of steel shot (sand), and increase the use.

　　4、 Less defective particles

　　Hongxin steel shot (sand) must contain as few physical defects as possible that will cause abrasive fracture. Due to the use of production technology, steel shot (sand) will always have such physical defects. Therefore, Hongxin has corresponding processes to control in the production to reduce the proportion of defective particles.

　　5、 The most economical material

　　Fatigue life is the ability of steel shot (sand) to resist crushing when acting on the working surface. The abrasives with the longest fatigue life will become the most economical abrasives, and Hongxin steel ball will convert appropriate energy into cleaning. In any application field, the quality of Hongxin steel ball and steel sand is the key to effective operation, which can effectively transform energy in the use process and play the role of cleaning and strengthening

　　Conclusion:

　　With many years of production experience, Hongxin steel pill has made a comprehensive arrangement of the above points. Combining advantages with disadvantages. The company has a professional research team and strong R & D force to continuously meet the requirements of high-end customers for the product surface treatment effect and improve the operation efficiency, and has a senior practical force for the in-depth excavation and research of the steel shot / sand Market. Through recent sales and cooperation transactions, it is the first in China, witnessing the strength of Hongxin steel shot and steel sand, and becoming the brand of China's national standard steel shot teaching aids.