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Surface carburizing process for mold

A surface carburizing and process technology, which is applied in the field of mold surface carburizing technology, can solve the problems affecting the performance and production effect of the mold, the process is complicated, and the surface accuracy is not ideal, so as to improve the performance of the mold and the production effect, process Simple, the effect of improving surface mechanical properties and wear resistance

Inactive Publication Date: 2016-06-08
CHONGQING YEGAO FURNITURE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing mold surface treatment process is complicated and the surface precision is not ideal, which seriously affects the performance and production effect of the mold.

Method used

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with embodiment:

[0011] A kind of surface carburizing process of mold, material adopts 12Cr2Ni4A, adopts following steps:

[0012] (1) Preparation stage: Before carburizing, heat up the empty furnace. After the furnace temperature rises to 650-700oC, start the electric fan and turn on the circulating cooling water. When the furnace temperature reaches 820oC, drop carburizing agent and methanol into the furnace. The pyrolysis gas is used for carburizing in an empty furnace. The furnace temperature reaches the carburizing temperature of 830-880°C and is kept for 2-3 hours. After the furnace gas is normal, the workpiece is put into the furnace. After the parts are put into the furnace, the temperature drops. Drop methanol to exhaust. When the temperature rises above 850oC, in addition to continuing to drop methanol, add kerosene and accelerate the exhaust;

[0013] (2) Carburizing stage: After the furn...

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Abstract

The invention discloses a surface carburizing process for a mold; 12Cr2Ni4A is adopted in material. The surface carburizing process for the mold is characterized by adopting the following steps: (1) a preparation stage; (2) a carburizing stage; and (3) a diffusing stage. The surface carburizing process for the mold, disclosed by the invention, is simple, and is capable of increasing surface mechanical property and abrasion resistance, shortening carburizing time and increasing service performance and a production effect of the mold.

Description

technical field [0001] The invention belongs to a surface carburizing process of a mold. Background technique [0002] Mold is an important process equipment for producing various industrial products in modern production. With the development of social economy, especially the rapid development of automobile, home appliance industry and aerospace, higher requirements are put forward for the mold industry. How to improve mold quality, service life and reduce production cost has become an urgent problem to be solved. In addition to the reasonable cooperation of the matrix with sufficient strength and toughness, the surface properties of the mold are very important to the working performance and service life of the mold. The improvement of the performance of the mold depends solely on the improvement and improvement of the base material, which is very limited and uneconomical, and the surface treatment technology can often achieve twice the result with half the effort, which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C8/22
Inventor 车海波
Owner CHONGQING YEGAO FURNITURE CO LTD
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