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High-hardenability die steel

A technology of high hardenability and mold steel, applied in the field of steel, can solve the problems of short mold service life, low comprehensive performance index, poor uniformity of structure hardness, etc., and achieve good processability, good uniformity of structure hardness, high hardenability sexual effect

Inactive Publication Date: 2007-04-04
沈阳市铸威特殊钢有限公司
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] At present, the large-scale plastic mold steel produced by various domestic manufacturers has low hardenability of steel, poor uniformity of tissue hardness, short service life of the mold produced, and low comprehensive performance indicators.

Method used

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Embodiment Construction

[0024] A kind of die steel, take:

[0025] C 0.27mg

[0026] Mn 1.40mg

[0027] Si 0.27mg

[0028] S 0.010mg

[0029] P 0.015mg

[0030] Cr 1.35mg

[0031] Mo 0.50mg

[0032] V 0.09mg

[0033] Ni 0.95mg

[0034] Cu0.20mg

[0035] Fe balance

[0036] Manufacturing process: Take the above-mentioned component materials and adopt electric furnace + vacuum degassing smelting process.

[0037] 1. First melt iron in an electric furnace, start slagging and dephosphorization at 1540°C, use a large amount of slag and flow slag;

[0038] 2. After slagging and dephosphorization, carry out slag removal and reduction to create alkaline reducing slag;

[0039] 3. Desulfurization operation, the sulfur content and composition meet the requirements, the temperature reaches 1630°C, and steel tapping begins;

[0040] 4. Molten steel enters the refining furnace for slagging heating and vacuum argon blowing operation;

[0041] 5. After the vacuum smelting is completed, the molten steel...

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PUM

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Abstract

The invention belongs to steel, it is a kind of high hardenability die steel to be exact. The component of the high hardenability die steel is composed of as follows: C, Mn, Si, S, P, Cr, M0, V, Ni, Cu, Nb, Fe margin. The high hardenability die steel in this invention has these functions such as high hardenability and the organization hardness is uniform, it is also has good working quality, polishing, burnish print and discharge working quality , it is suitable to manufacture big extruding and jetting mould, it can be apply to mechanical manufacture industry broadly.

Description

technical field [0001] The invention belongs to steel products, more precisely, it is a mold steel with high hardenability. Background technique [0002] At present, the large-scale plastic mold steels produced by various domestic manufacturers have low hardenability, poor uniformity of tissue hardness, short service life of the molds produced, and low comprehensive performance indicators. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide a mold steel with high hardenability and uniform microstructure hardness. [0004] The purpose of the present invention is achieved through the following technical solutions: a high hardenability die steel, consisting of the following components by weight percentage: [0005] C 0.22-0.35 [0006] Mn 1.30-1.60 [0007] Si 0.17-0.37 [0008] S≤0.015 [0009] P≤0.020 [0010] Cr 1.10-1.80 [0011] Mo 0.30-0.80 [0012] V 0.05-0.25 [0013] Ni 0.80-1.20 [0014] Cu≤0.25 [0015] ...

Claims

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Application Information

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IPC IPC(8): C22C38/46C21C7/064C21C7/072C21D1/26C21D1/18C21D8/00
Inventor 肖瑞勇
Owner 沈阳市铸威特殊钢有限公司
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