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Vertical parting casting method for overcoming shrinkage defect of castings through cooling fins

A vertical parting and fin technology, applied in the direction of casting mold, casting mold composition, casting molding equipment, etc., can solve the problems of cold iron being unpractical and unsatisfactory, to solve shrinkage porosity defects, improve molding efficiency, The effect of saving production costs

Inactive Publication Date: 2017-06-20
山东汇金股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the structure of the casting, the technological measures that are often used include lowering the inner and outer chillers, adjusting the position of the pouring riser and the pouring temperature, but sometimes it is not ideal. The chiller is not practical in vertical molding, and placing the chiller becomes a big problem. question

Method used

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  • Vertical parting casting method for overcoming shrinkage defect of castings through cooling fins
  • Vertical parting casting method for overcoming shrinkage defect of castings through cooling fins
  • Vertical parting casting method for overcoming shrinkage defect of castings through cooling fins

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Embodiment 1

[0030] Example 1, such as figure 1 , figure 2 , image 3 As shown, the present invention provides a method for vertical split casting using cooling fins to reduce shrinkage defects of castings. The inventor mainly proposes to use cooling fins instead of cold plates.

[0031] The invention provides a method for vertical split casting using cooling fins to reduce shrinkage defects of castings, which specifically includes the following steps:

[0032] a. Identify hot nodes according to the structure of the product;

[0033] b. The mold is placed in the sand box, and the outer wall surface of the intersection of the two walls of the mold and the inner gate position is close to the outer cooling fin (the cooling fin is fixed on the mould);

[0034] c. Install the pattern plate and shoot sand molding;

[0035] d. Take out the pattern plate, and exit the cavity after closing the box;

[0036] (Embed the cooling fins on the mold, when molding, directly bring out the cavity in th...

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Abstract

The invention belongs to the field of casting techniques of rolling bearing adjusters and particularly relates to a vertical parting casting method for overcoming the shrinkage defect of castings through cooling fins. The major steps of the method specifically include additional arrangement of the cooling fins to a die, detailed setting of the die and the cooling fins, pouring of the castings and after-treatment. According to the method, a cooling plate is replaced with the cooling fins, so that the casting technique with molten iron being solidified sequentially is achieved, and casting defects are overcome. Through the vertical molding line, the effect that the castings have no defects inside is ensured while the product performance is ensured and the production efficiency is not affected. As the cooling fins replace chilling blocks, the shrinkage defect is effectively overcome by producing the castings through vertical parting, the molding efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of casting technology of rolling bearing regulators, and in particular relates to a method of vertical split casting for reducing shrinkage defects of castings by using cooling fins. Background technique [0002] Casting—melting metal, making casting molds, pouring molten metal into casting molds, and obtaining metal parts blanks with certain shape, size and performance after solidification. [0003] Casting is the process of smelting metal into a liquid that meets certain requirements and pouring it into a mold, cooling, solidifying, and cleaning to obtain a casting with a predetermined shape, size, and performance. Because the casting blank is almost formed, it achieves the purpose of free machining or a small amount of machining, which reduces the cost and reduces the production time to a certain extent. [0004] The casting process at the present stage can be divided into vertical parting and horizontal parting. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02B22D27/04
CPCB22C9/02B22D27/04
Inventor 许文青董兴李光民张会杰郑冬梅吕海霞
Owner 山东汇金股份有限公司
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