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Copper-containing high-polishing pre-hardening plastic die steel and manufacturing process thereof

A plastic mold and preparation technology, applied in the field of alloy steel, can solve the problems of increasing the manufacturing cost and high price of automobile products, and achieve the effects of improving manufacturing level and market competitiveness, low alloy cost and high polishing performance

Inactive Publication Date: 2019-03-22
RUGAO HONGMAO HEAVY FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the price of NAK80 steel or 1.2343 steel is higher, which will greatly increase the manufacturing cost of these automotive products

Method used

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  • Copper-containing high-polishing pre-hardening plastic die steel and manufacturing process thereof
  • Copper-containing high-polishing pre-hardening plastic die steel and manufacturing process thereof
  • Copper-containing high-polishing pre-hardening plastic die steel and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In this example, the alloy composition and weight percentage of the copper-containing high-polishing pre-hardened plastic mold steel are as follows:

[0027] C 0.10%, Si 0.30%, Mn 0.40%, Cr 0.30%, Mo 0.20%, V 0.10%, P 0.014%, S 0.004%, Ni2.00%, Al 0.70%, Cu 0.70%, Fe balance.

[0028] In this embodiment, the specific steps of the preparation process of copper-containing highly polished pre-hardened plastic mold steel are as follows:

[0029] (1) Smelting: According to the chemical composition and weight percentage of copper-containing high-polish pre-hardened plastic mold steel, batching, electric arc furnace smelting and refining, then electroslag remelting or vacuum self-consumption smelting, hot forging furnace;

[0030] (2) High-temperature diffusion heat treatment: use a multi-stage heating method to raise the temperature of the heating furnace, and isothermally at 600°C, 800°C and 1100°C respectively; finally, the temperature is raised to 1150-1200°C, and the hold...

Embodiment 2

[0037] In this example, the alloy composition and weight percentage of the copper-containing high-polishing pre-hardened plastic mold steel are as follows:

[0038] C 0.07%, Si 0.10%, Mn 0.20%, Cr 0.15%, Mo 0.09%, V 0.04%, P 0.009%, S 0.002%, Ni 1.60%, Al 0.40%, Cu 0.40%, Fe balance.

[0039] In this embodiment, the specific steps of the preparation process of copper-containing highly polished pre-hardened plastic mold steel are as follows:

[0040] (1) Smelting: According to the chemical composition and weight percentage of copper-containing high-polish pre-hardened plastic mold steel, batching, electric arc furnace smelting and refining, then electroslag remelting or vacuum self-consumption smelting, hot forging furnace;

[0041] (2) High-temperature diffusion heat treatment: use a multi-stage heating method to raise the temperature of the heating furnace, and isothermally at 600°C, 800°C and 1100°C respectively; finally, the temperature is raised to 1150-1200°C, and the hol...

Embodiment 3

[0048] In this example, the alloy composition and weight percentage of the copper-containing high-polishing pre-hardened plastic mold steel are as follows:

[0049] C 0.08%, Si 0.15%, Mn 0.30%, Cr 0.20%, Mo 0.10%, V 0.05%, P 0.010%, S 0.003%, Ni 1.80%, Al 0.60%, Cu 0.60%, Fe balance. In this embodiment, the specific steps of the preparation process of copper-containing highly polished pre-hardened plastic mold steel are as follows:

[0050](1) Smelting: According to the chemical composition and weight percentage of copper-containing high-polish pre-hardened plastic mold steel, batching, electric arc furnace smelting and refining, then electroslag remelting or vacuum self-consumption smelting, hot forging furnace;

[0051] (2) High-temperature diffusion heat treatment: use a multi-stage heating method to raise the temperature of the heating furnace, and isothermally at 600°C, 800°C and 1100°C respectively; finally, the temperature is raised to 1150-1200°C, and the holding time ...

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Abstract

The invention relates to a copper-containing high-polishing pre-hardening plastic die steel and a manufacturing process thereof. The alloy chemical components of the die steel are mainly composed of the alloy elements of, in percentage by mass, less than or equal to 0.10% of C, less than or equal to 0.30% of Si, 0.20-0.40% of Mn, less than or equal to 0.30% of Cr, less than or equal to 0.20% of Mo, less than or equal to 0.10% of V, less than 0.015% of P, less than 0.005% of S, 1.60-2.00% of Ni, 0.40-0.70% of Al, 0.40-0.70% of Cu and the balance Fe; and the hot-work die steel is subjected to material preparing, smelting, casting, and then electroslag remelting; the die steel is subjected to high-temperature diffusion heat treatment, then multi-directional forging thermal processing and post-forging heat treatment; then the die steel is subjected to hydrogen diffusion annealing and pre-hardening treatment; and finally, the die steel is subjected to aging heat treatment. The die steel hasthe advantages that the hot-work die steel has the high polishing performance and the low alloy cost.

Description

technical field [0001] The invention belongs to the technical field of alloy steel, and relates to an alloyed die steel, in particular to [0002] A copper-containing high-polishing pre-hardened plastic mold steel and a preparation process thereof. Background technique [0003] With the rapid development of my country's manufacturing industry, the amount of molds is increasing, and the performance requirements of mold materials are also getting higher and higher, especially high polishing and high wear resistance. Molds are used in the production of light-emitting components such as automobile manufacturing, home appliances, and electronic communications. These molds require high polishing and high wear resistance. At present, most of the imported NAK80 steel or NAK55 steel and other materials are used to manufacture these molds. But the price of NAK80 steel or 1.2343 steel is higher, which will greatly increase the manufacturing cost of these automotive products. Especia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/44C22C38/46C22C38/06C22C38/42C21D8/00
CPCC21D8/005C22C38/02C22C38/04C22C38/06C22C38/42C22C38/44C22C38/46
Inventor 周青春徐卫明顾金才葛建辉钱强赵博伟宋小亮丁勇
Owner RUGAO HONGMAO HEAVY FORGING
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