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Method for bonding chillers in lost wax casting process

A technology of wax mold casting and cold iron, which is applied in the direction of manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of scattered hot spots of castings, reduced casting yield, and increased production costs, so as to meet the requirements of use and reduce production. Cost, the effect of improving the process yield

Inactive Publication Date: 2019-03-01
安徽应流铸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During casting, the hot joints of the castings are often scattered due to the characteristics of the product structure. A single riser cannot guarantee the internal quality and processing requirements of the casting. If all risers are installed at the hot joints, the casting yield will decrease and the production cost will increase.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for bonding cold iron in a wax pattern casting process, it may further comprise the steps:

[0019] 1) Determine the hot joint area on the casting according to the casting drawing, and then determine the bonding position of the cold iron, and calculate the area of ​​the hot joint area at the same time;

[0020] 2) Prepare the cast steel bar stock, according to the size of the chill iron determined by the area of ​​the hot joint area in step 1), use a sawing machine to process the cast steel bar stock into chill iron that meets the size requirements, and the chill iron of the same size is used in large quantities The cold iron mold is used for processing, and then the cold iron that meets the requirements is obtained by investment casting;

[0021] 3) Prepare the welded wax mold, and clean the outer surface of the chill iron and the area where the chill iron is bonded to the wax mold, without sand and oil stains, so as to avoid affecting the firmness of the chil...

Embodiment 2

[0025] A method for bonding cold iron in a wax pattern casting process, it may further comprise the steps:

[0026] 1) Determine the hot joint area on the casting according to the casting drawing, and then determine the bonding position of the cold iron, and calculate the area of ​​the hot joint area at the same time;

[0027] 2) Prepare the cast steel bar stock, according to the size of the chill iron determined by the area of ​​the hot joint area in step 1), use a sawing machine to process the cast steel bar stock into chill iron that meets the size requirements, and the chill iron of the same size is used in large quantities The cold iron mold is used for processing, and then the cold iron that meets the requirements is obtained by investment casting;

[0028] 3) Prepare the welded wax mold, and clean the outer surface of the chill iron and the area where the chill iron is bonded to the wax mold, without sand and oil stains, so as to avoid affecting the firmness of the chil...

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Abstract

The invention discloses a method for bonding chillers in a lost wax casting process. The method includes the steps: 2) determining hot spot regions on castings according to casting drawings, determining bonding positions of the chillers, and calculate the area of the hot spot regions; 2) preparing cast steel bars, determining the sizes of the chillers according to the area of the hot spot regionsacquired in the step 1), machining the cast steel bars into the chillers meeting size requirements by the aid of a sawing machine, machining more chillers with the same specification sizes by the aidof chiller molds, and preparing the chillers meeting requirements by an investment casting mode; 3) preparing installed and welded wax molds, cleaning the outer surfaces of the chillers and the regions on the wax molds for bonding the chillers, removing sand grains and oil stain, and ensuring bonding firmness of the chillers. According to the method, the inner quality and the machining requirements of the castings can be ensured, and production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a method for bonding cold iron in a wax mold casting process. Background technique [0002] At present, with the continuous development of my country's industry, the demand for castings is gradually increasing. At the same time, the requirements for the diversification of casting structures are getting higher and higher. Castings are widely used in fluid valve castings, aviation, automobiles, machinery and other fields. With the wide application of castings, the requirements for internal quality of castings are becoming more and more strict high. [0003] During casting, the hot joints of the castings are often scattered due to the characteristics of the product structure. A single riser cannot guarantee the internal quality and processing requirements of the casting. If all risers are installed at the hot joints, the casting yield will decrease and the production cost will incr...

Claims

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Application Information

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IPC IPC(8): B22C9/04B22D27/04
CPCB22C9/04B22D27/04
Inventor 柳鸿杜应流曹德兵俞悦刘燕叶峰李景鹏刘正新张义胜毕孝桃李娟程健
Owner 安徽应流铸业有限公司
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