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/ Material quality hammer crusher hammer is a key factor in the life


Time: 2016-05

The most critical part of hammer crusher is a hammer, hammer wear and tear damage is most likely to be the place, free to choose a good suitable for long-term use hammer hammer crusher has a very important significance, Shanghai  Joyal
Crusher experts told everyone Research hammer crusher hammer material.

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(1) manganese steel hammer: domestic crusher hammer most high manganese steel materials, the wear resistance is not enough, life is very short. Limestone crushing hammer can be used in general 60-90d, in some special conditions, the use of less than 7d. And because the hammer suffered on the job impact is not large, the high-manganese steel hammer hardening effect was not significant, its poor anti-erosion wear.
Since Cr austenite can play to strengthen and improve the role of steel hardness, strength and wear resistance, and therefore the addition of Cr in the high-manganese steel, the hammer can be greatly strengthened. When the iron ore crushing, hammer life increased by 50% than the ordinary high manganese steel.
(2) composite hammer hammer crusher: traditional high manganese steel hammer wear resistance is poor, life is short, large supplies. To this end, we will hammer hammer handle and the hammer is designed to end manufactured separately. Hammer handle part of the high manganese steel or carbon steel, so that it has sufficient strength and toughness, high chromium cast iron hammer part.
The high chromium cast iron is a material having excellent wear resistance, so that the hammer terminal will have sufficient abrasion resistance, and high chromium cast iron due to low toughness, prone to brittle fracture, so choose the hammer handle high toughness of high manganese steel or carbon steel, overcome the shortcomings of a single material. Practice shows that the cement clinker in the cement industry broken, the service life of high manganese steel hammer increased more than 2 times.
Additionally, you can use a hammer head cast in white, tests proved that the crushing Mohs hardness of 6.5 albite, life can be stably achieve high manganese steel hammer three times, we can see from the above analysis, more than two kinds of composite hammer meet the performance requirements.
(3) low alloy steel hammer crusher hammer: composite hammer, although having a higher life, but the casting and heat treatment process complicated. For this reason, in recent years developed a variety of low-alloy steel hammer, we have been promoting 40CrMnSiMoRe low alloy steel hammer.
40CrMnSiMoRe steel alloy element content, low production cost, simple process, you can get the required mechanical strength by suitable heat treatment. After analysis of the health of the hammer and experiments on the crusher, confirming the performance of this material in line with the hammer, the hammer can be used as a kind of good material.

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