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Stainless steel sand mold casting process

A casting process, stainless steel technology, applied in the field of stainless steel sand casting process, can solve the problems of no disclosure of stainless steel sand casting process, limited wide application, complicated processing technology, etc., achieve good hardness and luminosity, save cost, and improve brightness Effect

Inactive Publication Date: 2015-02-11
黄旭伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its high cost and complicated processing technology, its wide application is limited.
In the production of stainless steel products, some products have weird shapes and cannot be produced by bending, welding and other processes. There is an urgent need for the emergence of a manufacturing process that can produce such irregular shapes of stainless steel products.
[0004] Invention patent publication number 103042177A discloses a coated sand casting process for stainless steel faucets, which uses casting casting and cooling and solidification process simulation, product three-dimensional map production, A stainless steel faucet was prepared in the process of mold preparation, data verification, mold assembly, sand core making, casting molding, and cleaning, but it did not disclose some specific processes of stainless steel sand casting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1. Make molds according to different shapes of products. The mold adopts inner and outer compound sand, and the mold is divided into inner core and upper and lower dies of the outer shell. It is completed through comprehensive processes such as turning, planing, milling, and electric sparks. The shape and size of the pit are consistent with half of the product. Make mold with 45# steel material. The particle size of the sand is 200 mesh.

[0042] 2. Use the core shooter to produce product models. Install the mold on the core shooter to extrude the product model. The product model has an outer shell and an inner core and is divided into upper and lower dies. The air pressure of the core shooter is 0.31MPa, and the mold heating temperature is 280°C.

[0043] 3. Refining the margin around the model. Grind the burrs on the model and the surrounding allowance with a file.

[0044] 4. Assemble the inner and outer models. First put the lower mold of the product appearance...

Embodiment 2

[0055] 1. Make molds according to different shapes of products. The mold adopts inner and outer compound sand, and the mold is divided into inner core and upper and lower dies of the outer shell. It is completed through comprehensive processes such as turning, planing, milling, and electric sparks. The shape and size of the pit are consistent with half of the product. Make mold with 45# steel material. The particle size of the sand is 200 mesh.

[0056] 2. Use the core shooter to produce product models. Install the mold on the core shooter to extrude the product model. The product model has an outer shell and an inner core and is divided into upper and lower dies. The air pressure of the core shooter is 0.34MPa, and the mold heating temperature is 320°C.

[0057] 3. Refining the margin around the model. Grind the burrs on the model and the surrounding allowance with a file.

[0058] 4. Assemble the inner and outer models. First put the lower mold of the product appearance m...

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Abstract

The invention relates to the technical field of casting processes, and particularly relates to a stainless steel sand mold casting process. The process specifically comprises the following steps: making a mold; producing product models; finely trimming the models; assembling and splicing inner and outer models; heating liquid steel in a casting furnace; breaking the outermost layer and an inner core sand shell into pieces after the liquid stainless steel is cooled and solidified; emptying the inner core sand shell to expose a solid stainless steel product; cutting and separating the product one by one, and then roughly grinding the product to form a simplex blank part; slinging; inspecting the blank; washing the blank; performing other working procedures until a finished product is obtained. The process disclosed by the invention can solve the problem of production of the stainless steel product which is strange in shape and cannot be produced by using processes such as pipe bending and welding; the production process can enable the processing capacity of each product to be minimized, and an inner chamber is totally finished according to the requirements of a product design, so that the subsequent processing and the processing efficiency of the product are guaranteed, the production efficiency is maximized, the production cost is lowered, the production efficiency is improved, and the brightness and the toughness of the produced product are both further improved.

Description

technical field [0001] The invention relates to the technical field of casting technology, in particular to a stainless steel sand mold casting technology. Background technique [0002] As the prices of raw and auxiliary materials and labor continue to rise and the profit margin of casting products has been showing a downward trend, it is necessary to find a low-cost, convenient and practical casting process to replace the traditional process. [0003] At present, stainless steel casting generally adopts precision casting, also called investment casting. Due to its high cost and complicated processing technology, its wide application is limited. In the production of stainless steel products, some products have weird shapes and cannot be produced by bending, welding and other processes. There is an urgent need for the emergence of a manufacturing process that can produce such irregular shapes of stainless steel products. [0004] The invention patent with the publication nu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02B22C9/24B22C15/24C22C38/60
CPCB22C9/02B22C9/24B22C15/24C22C38/16C22C38/18C22C38/20C22C38/40C22C38/42C22C38/60
Inventor 黄旭伟
Owner 黄旭伟
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