The jaw crusher relies on the jaw plate for the material processing . Jaw plate is divided into a swing jaw plate and a fixed jaw plate. However, no matter which jaw plate is used, its quality is related to its process. Whether the production process can proceed smoothly, production efficiency, maintenance cost and other factors, and the quality of jaw plate, the fundamental determining factor is the casting process. Shanvim will introduce the issues that need to be paid attention to when casting.
1. The combination of swing and fixed jaws should be reasonable
The production process of the jaw crusher mainly relies on fixed jaw plate and swing jaw plate. The interaction between the two determines the efficiency of the production process. Therefore, when casting, we must pay attention to the combination of the two. Generally speaking, the design When jaw plate of swing jaw plate and fixed jaw plate should be tooth peak to tooth valley, this design method, in addition to squeezing the material, also has a bending effect during crushing, which makes the crushing of the material easier , To reduce the damage to jaw plate during the crushing process.
2. The shape of jaw plate
The service life of jaw plate is related to the use cost of jaw crusher, and the life of the jaw plate has a great relationship with its shape. Generally speaking, jaw plate of the medium and small jaw crusher is designed in a symmetrical shape. U-turn use, and jaw plates of large jaw crushers should be designed to be symmetrical to each other, so that jaw plates can be exchanged after wear. This design model can reduce the frequency of jaw plate replacement and reduce the cost of equipment production.
3. Material selection of jaw plate
When we choose jaw plate used in jaw crusher, the wear resistance of the material determines the service life of jaw plate. Therefore, when jaw plate is cast, the material selection is a very important issue. Generally, white cast iron can be selected. Or high manganese steel, white cast iron has higher hardness, better wear resistance, easy source, and cheap price, but its disadvantages are brittleness, easy breakage, and short service life. High manganese steel has strong wear resistance and work hardening. Performance, which greatly enhances the service life of the jaw plate,
4.Pouring quickly when pouring at low temperature possible
When jaw plate of jaw crusher is cast and in the pouring stage, once it solidifies, the sand box must be loosened in time. The inner chilled iron must be clean and easy to melt, and the amount should be small. The three-dimensional size of the outer chilled iron and the three-dimensional of the cooling material The size is a function of 0.6-0.7 times. If it is too small, it will not work. If it is too large, jaw plate casting will crack. The casting must be kept in the mold for a long time until it is lower than 200°C before opening the box.
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.
Post time: Jan-05-2022