The blow bar is the main crushing part of the crusher. When the counterattack blow bar breaks materials with relatively high hardness and strength, it needs a strong and tough blow bar material. At present, there are three main raw materials for manufacturing blow bars: high manganese steel, alloy steel materials, and high chromium cast iron. Blow bars and impact plates are easy to wear, especially when crushing hard ore, the wear is more serious and needs to be replaced frequently. Therefore, the consumption of impact breaking blow bar and impact plate accounts for a large part of the later operation cost of the sand and gravel production line.
Generally, the service life of the blow bar of the crusher is short and the consumption is large. The blow bar is the main wearing part of the crusher, and the quality of the blow bar directly affects the working efficiency of the crusher. Sand casting is preferred for red apple casting, the main reason is that compared with other casting methods, sand casting has lower cost, simpler production process and shorter production cycle.
There are two reasons for the short service life of the blow bar:
1. Improper selection of crusher blow bar material;
2. Improper selection of the blow bar structure.
Crusher blow bar material:
Blow bars are generally made of high manganese steel, high chromium cast iron, alloy steel, malleable cast iron or other resistant
Grinding materials, crusher manufacturers mostly use high manganese steel to make blow bars, which have better wear resistance.
There are many shapes of blow bars, such as elongated, T-shaped, S-shaped, I-shaped and grooved, among which the elongated shape is the most common. When the blow bar is slightly worn, we recommend that the user surfacing a layer of wear-resistant material on the carbon steel or high manganese steel plate; The blow bar must turn around and change sides at the same time, otherwise the equipment will vibrate during operation.
The blow bar is made of high chromium cast iron, high manganese steel and other wear-resistant alloy steel. It is impact-resistant and wear-resistant, and can crush high-hardness materials. The structure design of the blow bar of the crusher is reasonable, and it has the advantages of fast loading and unloading, multiple transpositions, etc., thus greatly shortening the time for changing the blow bar.
Shanvim Industry (Jinhua) Co., Ltd., established in 1991. The company is a wear-resistant parts casting enterprise. The main products are the wear-resistant parts such as mantle, bowl liner, jaw plate, hammer, blow bar, ball mill liner, etc.. There are medium and high , Ultra-high manganese steel, medium carbon alloy steel , low, medium and high chromium cast iron materials, etc.. It mainly produces and supplies wear-resistant castings for mining, cement, building materials, infrastructure construction, electric power, sands and gravel aggregates, machinery manufacturing and other industries.
Shanvim as a global supplier of crusher wearing parts, we manufacture cone crusher wearing parts for different brands of crushers. We have more than 20 years of history in the field of CRUSHER WEAR PARTS. Since 2010, we have exported to America, Europe, Africa and other countries in the world.
Post time: Aug-28-2023