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Squeeze casting on properties of high manganese steel hammer what?

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High manganese steel hammers are widely used in metallurgy, mining, building materials, and other areas accounted for more than total consumption of hammer head 80%, and mainly using the sand casting method. In order to improve the performance of high manganese steel hammer, alloying, modification of the people studied have achieved certain results. In terms of forming technology, tested by centrifugal casting, metal casting, making high manganese steel hammer by using the life expectancy has increased, but the range is limited.

National study found that manufacturing 50kg high manganese steel hammer by squeeze casting technology, its grain size up to level 5, level 2, including sand casting, extrusion casting high manganese steel hammer of impact toughness of metal casting high manganese steel by 1.08 times times, extrusion casting high manganese steel hammers are more likely the work hardening and hardened hardness higher than metal casting. Extrusion casting high manganese steel hammer and hammer installed on sand casting with material on PCL1500-3-type crusher, crushing the rock run 2D find sand casting hammer head has worn overrun, and extrusion casting high manganese steel hammer 7d remains after normal use. Service life of extrusion casting high manganese steel hammer is sand casting high manganese steel hammer by at least 3 times. Due to the extrusion casting high manganese steel hammer eliminates riser, yield generally about 70%.

In addition, the hammerhead in squeeze casting with smooth surface, without cutting, polishing. Extrusion casting high manganese steel hammer no styling and modeling of material consumption costs, through the use of special coatings, extrusion casting high manganese steel hammer tool life up to 1000~3000 times, tools of cost in product cost ratio and sand casting sand costs in proportion. Extrusion casting high manganese steel hammer by lower unit cost than sand casting 10%~15%, has a good technical and economic benefits.

 


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