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Grinding disc, model for casting grinding disc and casting process of grinding disc

A technology for casting models and grinding discs, which is used in casting molding equipment, casting molds, and casting mold components to reduce post-processing costs and time, improve product quality, and solve shrinkage defects.

Inactive Publication Date: 2021-06-29
扬州振光机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing casting process is difficult to meet the requirements of the grinding disc. The Brinell hardness difference of the disc surface is less than 10HB, and in the working area where the ultrasonic inspection requires the wear depth, there must be no casting defects that affect the use. These two quality indicators

Method used

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  • Grinding disc, model for casting grinding disc and casting process of grinding disc
  • Grinding disc, model for casting grinding disc and casting process of grinding disc

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Experimental program
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Effect test

Embodiment 1

[0036] Please refer to Figure 1, a grinding disc casting process, including the main part of the grinding disc, which is characterized in that the upper plane of the main part of the grinding disc is designed in a stepped shape, and the inner circle of the main part of the grinding disc is provided with an insulating slag ring. The outer circle of the main part of the disc is provided with an external thermal insulation overflow slag collection ring, and exhaust and slag discharge rods are evenly distributed on the thermal insulation overflow slag collection ring of the outer circle of the main part of the grinding disc.

[0037] A model for making the above-mentioned grinding disc casting process, comprising an upper sand box, an upper sand mold, a lower sand box and a lower sand mold, the upper sand mold and the lower sand mold are bonded and sealed at the parting surface of the mold, and it is characterized in that the center of the upper sand mold is opened The sprue, the s...

Embodiment 2

[0040] Please refer to figure 2 : Grinding disc molding process, using the grinding disc casting model of embodiment one to manufacture grinding discs, the grinding disc molding process is as follows:

[0041] 1) Modeling: Use a grinding disc to cast the model, and the modeling method is one of resin sand molding, sodium silicate sand molding or iron mold sand-covered molding;

[0042] 2) Smelting: melting the raw material of the grinding disc to obtain molten metal, the raw material of the grinding disc is selected from one of ductile iron, gray cast iron or alloy steel;

[0043] 3) Pouring: pour the molten metal obtained in the above step 2) into the grinding disc casting model described in 1) to obtain a grinding disc casting;

[0044] 4) Open the box and shake out the sand;

[0045] 5) Shot blasting and cleaning: Shot blasting and cleaning the grinding disc castings obtained in the above 4) to obtain grinding disc castings;

[0046] 6) Heat treatment: heat-treat the gr...

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Abstract

The invention discloses a grinding disc, a model for casting the grinding disc, a casting process of the grinding disc, and optimization design and innovation of the casting process of the grinding disc. According to the casting process of the grinding disc, the product quality and the product qualification rate can be improved, a scientific heat treatment technology is designed according to the technical quality requirement of grinding, the molecular structure is improved, and therefore the grinding disc is good in stability, the product quality is stable in the using and producing process, the work efficiency is improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to a grinding disc casting process, which relates to the grinding disc casting and molding process. Background technique [0002] The grinding disc is a tool for flexible grinding or polishing of metal materials or non-metallic materials by rotating the grinding disc. Its working state is to rotate and grind the workpiece at a low speed under pressure, and at the same time, it is also consumed and worn. Due to the high requirements on the flatness of the grinding workpiece and the product qualification rate, the self-wear uniformity index of the grinding disc is very high, and it is affected by the pressure and temperature on the dimensional accuracy of the grinding disc. Therefore, the smaller the difference in hardness and metallographic parameters in the working area of ​​the grinding disc, the better. [0003] At present, grinding discs have become the most widely used grinding tool in coated abrasives. Due to the developmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02B22C9/08B24D18/00
CPCB24D18/0009B22C9/02B22C9/082
Inventor 张勇张建国
Owner 扬州振光机械有限公司
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