Manufacturing method of economical hot work die steel

A technology of hot work die steel and manufacturing method, which is applied in the field of metal processing, can solve the problems of high proportion of non-renewable resources and waste of resources, and achieve the effects of saving non-renewable resources, expanding the market, and low alloy ratio

Pending Publication Date: 2022-04-12
AVIC SHANGDA METAL REGENERATION TECH
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  • Abstract
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Problems solved by technology

At present, the H13 series of general-purpose hot work die steels imported from abroad still account for a large proportion in the market, while there are few special die-casting, hot forging or extrusion for different use requirements and working conditions. At the same time, the H13 series steel components contain The proportion of non-renewable resources such as Cr, Mo and V is relatively high, which causes waste of resources to a certain extent

Method used

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below, obviously, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] The invention provides a technical solution: a manufacturing method of an economical hot work die steel, the modification process includes the following steps:

[0023] Step 1. Electric arc furnace smelting: Pour the raw materials into the electric arc furnace, energize the electric arc furnace, and draw the arc through the discharge between the graphite motor and the furnace material to generate a high temperature of 2000-6000 degrees Celsius, melt the raw materials, and remove impurities in the raw materials Carr...

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Abstract

The invention relates to the technical field of metal processing, in particular to a manufacturing method of economical hot work die steel, which comprises the following steps: step 1, smelting in an electric arc furnace; step 2, slagging; step 3, refining outside a furnace; 4, molten steel stirring; step 5, continuous casting; step 6, tempering; step 7, forging; according to the manufacturing method, use of precious elements such as Mo and V is reduced to a certain extent, so that the production cost is reduced, unnecessary resource waste is avoided, the transverse mechanical property is improved, the situation that a mold is prone to cracking is avoided, and the service life of the steel grade is prolonged.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to an economical method for manufacturing hot work die steel. Background technique [0002] The mold industry occupies an important position in the equipment manufacturing industry. The technical level of the mold industry has become one of the important symbols to measure the level of the manufacturing industry. Therefore, the industry has an industry consensus of "Modern industry, mold first". Mold technology combines the advantages of high efficiency, high precision, high complexity, low consumption and low cost, which is unmatched by other molding technologies. [0003] As an important part of die steel, hot work die steel is mainly suitable for the production of alloy tool steel for hot deformation processing of metals. Since hot work dies work under high temperature and high pressure conditions for a long time, the mold materials are required to have High strength, hardness an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/22C22C38/24C22C33/04C21D8/00C21D1/32
Inventor 钟庆元栾吉哲叶强孙海涛
Owner AVIC SHANGDA METAL REGENERATION TECH
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