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Wear-resistant cast iron disc and production process thereof

A technology of wear-resistant cast iron and production technology, which is applied in the direction of machine tools, grinders, abrasives, etc., which are suitable for grinding the edge of workpieces. It can solve the problems that the production unit is difficult to master and the technical requirements are high, and achieve the effect of low production cost and simple process

Inactive Publication Date: 2013-11-13
GUANGDONG DIESEL MACHINERY FOUNDRY COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The foreign production process is to mix the diamond powder into the iron plate to firmly inlay the diamond powder through the powder metallurgy method, so as to realize the inter-grinding of diamonds and diamonds. However, the technical requirements of powder metallurgy are high, and it is difficult for general production units to master

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A wear-resistant cast iron disc, which is composed of a cast iron disc matrix and diamond powder, the cast iron disc matrix contains 2.7-2.9wt% of C, 1.8-1.9wt% of Si, 0.27-0.3wt% of Ni, 0.50-0.70wt% Mo, 0.50-0.70wt% Cu.

[0020] The grinding disc is ￠600mm×25mm disc.

[0021] The production process of the wear-resistant cast iron disc comprises the following steps:

[0022] 1) Feeding smelting: according to the order of pig iron, recycled material, scrap steel, ferrosilicon, ferromolybdenum, ferronickel, and copper alloy, the materials are added to the electric furnace for smelting, superheated to 1500°C, left standing to pick up impurities, and adjusted with carburizer and ferrosilicon Silicon carbon composition, when the molten iron is tapped at 1460-1480°C, add a ferrosilicon inoculant accounting for 0.7wt% of the molten iron mass to inoculate with the flow;

[0023] 2) Casting at 1370°C;

[0024] 3) Metallographic inspection: inspect the casting after casting, t...

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PUM

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Abstract

The invention discloses a wear-resistant cast iron disc. The wear-resistant cast iron disc comprises a cast iron disc matrix and diamond powder, wherein the cast iron disc matrix contains, by weight percent, 2.7-2.9% of C, 1.8-1.9% of Si, 0.27-0.3% of Ni, 0.50-0.70% of Mo and 0.50-0.70% of Cu. A powdery metallurgical grindstone disc can be replaced by the method of extruding a diamond by using an alloy cast iron disc, thus achieving an aim of grinding the diamond. After heat treatment, the surface of the alloy cast iron disc developed by the invention can reach 56-60 HRC; a production process is simple; and the production cost is low.

Description

technical field [0001] The invention relates to a wear-resistant cast iron plate and a production process thereof. Background technique [0002] Since diamond is an atomic crystal, which is a cubic tetrahedral space network structure composed of carbon atoms, its hardness is extremely high, with a Mohs hardness of 10, which is the highest hardness among known substances. Polishing diamonds to luster and edges must be achieved through diamond-diamond grinding. [0003] The foreign production process uses powder metallurgy to mix diamond powder into an iron plate and firmly inlay diamond powder to achieve diamond-diamond intergrinding. However, powder metallurgy has high technical requirements and is difficult for general production units to master. How to reduce production costs and technical requirements and firmly inlay diamond powder to achieve the purpose of grinding diamonds has become the focus of attention of many academic institutions and manufacturers. Contents of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C37/10C22C33/08C21D5/00B24D3/06B24B9/16
Inventor 李伟彪张征义关敏权
Owner GUANGDONG DIESEL MACHINERY FOUNDRY COMPANY