Process for producing low-chromium complex alloy grinding ball

A multi-component alloy and production process technology, applied in the field of wear-resistant materials, can solve problems such as poor fatigue impact resistance and wear resistance, high breakage rate and out-of-round rate, and low product yield, so as to improve internal and external quality, Improves fatigue impact resistance and wear resistance, and improves product yield

Inactive Publication Date: 2014-04-16
南平市双友金属有限公司
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AI Technical Summary

Problems solved by technology

[0002] The current production of low-chromium multi-element alloy casting balls has poor internal and external quality, common casting defects such as shrinkage cavities, pores, and looseness, high breakage rate and out-of-round rate, poor fatigue impact resistance and wear resistance, and product yield. The yield is low, the production process is complicated, and the production cost is high

Method used

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  • Process for producing low-chromium complex alloy grinding ball
  • Process for producing low-chromium complex alloy grinding ball
  • Process for producing low-chromium complex alloy grinding ball

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Embodiment Construction

[0016] In order to describe in detail the technical content, structural features, achieved objectives and effects of the present invention, the following will be described in detail in conjunction with the embodiments.

[0017] 1. Control of chemical composition

[0018] The chemical composition of the casting ball that technique of the present invention makes is as shown in table 1 below:

[0019] Table 1

[0020]

[0021] 2. Raw materials

[0022] Scrap steel: Clean scrap steel is required

[0023] Pig iron: use GB / T718-2005 foundry pig iron, the grade is Z14, and vanadium-titanium pig iron can also be used.

[0024] Carbon ferrochrome: use GB / T5683-2008 ferrochrome, the grade is FeCr600 or FeCr1000.

[0025] Ferromolybdenum: selected by GB / T3649-2008.

[0026] Rare earth ferrosilicon: use GB / T4173-2004 rare earth ferrosilicon alloy, the brand can be one of the following four types, FeSiRE21, FeSiRE24, FeSiRE27, FeSiRE230.

[0027] Ferrosilicon: reserve according to...

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Abstract

The invention relates to a process for producing a low-chromium complex alloy grinding ball. The process comprises the steps of melting, pouring, casting a metal mold and tempering, chemical components of the low-chromium complex alloy grinding ball are reasonably designed, and metal mold casting and tempering are carried out, so that the internal and external quality of the grinding ball can be improved, the product does not have the casting defects, such as sinkholes, pores, looseness and the like, the broken rate and no circularity of the grinding ball can be reduced, the fatigue impact resistance and wear resistance of the grinding ball can be improved, the product yield can be remarkably improved, the production process can be simplified, and the production cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of wear-resistant materials, in particular to a production process for low-chromium multi-element alloy casting balls. Background technique [0002] The current production of low-chromium multi-element alloy casting balls has poor internal and external quality, common casting defects such as shrinkage cavities, pores, and looseness, high breakage rate and out-of-round rate, poor fatigue impact resistance and wear resistance, and product yield. The yield is low, the production process is complicated, and the production cost is high. Contents of the invention [0003] In order to overcome the defects of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a production process of low-chromium multi-element alloy casting balls with good internal and external quality and good mechanical properties. [0004] In order to solve the problems of the technologies d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C22C33/08B22C9/06
Inventor 沈金森叶文辉
Owner 南平市双友金属有限公司
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