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Product Description
The plate hammer is a key component of the recoil crusher. The materials in its working area are crushed under its high-speed impact, and are thrown to the recoil plate located above the rotor, and then bounced back to the recoil plate by the recoil plate. Crushed again. It can be seen that the hammer is in direct contact with the material. The shape of the hammer head and the placement method of the hammer head will all affect the crushing of the hammer head.
The blow bar is the main crushing component of the crusher. When the impact blow hammer crushes materials with relatively high hardness and strength, a strong and tough blow bar material is required. At present, there are three main raw materials for manufacturing blow bars: high manganese steel, alloy steel materials, and high chromium cast iron. The blow hammer and impact plate are prone to wear, especially when crushing hard ores, and the wear is more serious and need to be replaced frequently. Therefore, the consumption of impact crushers and impact plates accounts for a large part of the later operating costs of the sand and gravel production line.
Product Performance
- 1Strong wear resistance and impact toughness
Adopt double refining technology outside the furnace to effectively reduce the harmful elements, inclusions, oxygen and hydrogen Hazard, greatly improving the wear resistance and impact toughness of steel.
- 2Strong impact and wear resistance
The optimized heat treatment process makes the product uniform in hardness and stronger in impact and wear resistance.
- 3New technology improves service life
Gypsophila ceramic or cemented carbide composite inlay technology doubles the service life of the plate hammer.
- 4 Blow hammer customization service
We can customize and produce various wear-resistant accessories according to the drawings. If there are no drawings, the company has professional surveying and mapping personnel to help with the surveying and mapping. Customize
Working Principle
At present, the jaw plate, large hammer head, large plate hammer, rolling mortar wall, crushing wall, etc. at home and abroad are mainly made of high manganese steel or ultra-high manganese steel. Its structure is austenite and has good work hardening properties. . Under working conditions where the workpiece is subjected to strong impact, its surface hardens rapidly, and the hardness can be increased from 170 to 225HB to 400 to 600HB, while the core still maintains the original hardness and has good toughness. High manganese steel or ultra-high manganese steel Although the wear resistance of manganese steel after work hardening is good, the wear of wear-resistant parts with very harsh working conditions is still serious, especially the wear-resistant parts of large crushers.
Technical Parameters
Chemical composition (%) | High chromium alloy steel | High chromium white cast iron |
C | 1.10-2.20 | 2.40-3.20 |
Si | 0.60-1.20 | 0.60-1.20 |
Mn | 0.50-1.00 | 0.50-1.00 |
Cr | 11.00-33.00 | 12.00-33.00 |
S | ≤0.04 | ≤0.04 |
P | ≤0.06 | ≤0.06 |
Mo | 0.10-3.00 | 0.10-3.00 |
Cu | 0.10-1.00 | 0.10-1.00 |
Ni | 0.10-1.00 | 0.10-1.00 |
Re | 0-0.30 | 0-0.30 |