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Corrosion-resistant easy cutting plastic mold steel

A plastic mold steel, easy-cutting technology, applied in the field of steel, can solve the problems of poor tissue hardness uniformity, short plastic mold service life, poor cutting performance, etc., to achieve high isotropy, tissue uniformity, and good tissue hardness uniformity , Good processability effect

Inactive Publication Date: 2007-02-28
WUXI CHICHENG SPECIAL STEEL VENDITION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1, make 1000kg corrosion-resistant easy-cutting plastic mold steel, get:

[0036] C 3.2kg

[0037] Mn 7.0kg

[0038] Si 3.7kg

[0039] S 0.6kg

[0040] P 0.15kg

[0041] Cr 160kg

[0042] Mo 0.1kg

[0043] V 1.2kg

[0044] Ni 9.0kg

[0045] N 0.5kg

[0046] Iron and steel charge balance

[0047] Manufacturing process: Take the above materials and adopt electric furnace + vacuum degassing + electroslag remelting smelting process.

[0048] 1. First melt the steel charge in the electric furnace, start slagging and dephosphorization at 1540°C, use a large amount of slag and flow slag;

[0049] 2. After the slag dephosphorization is completed, carry out slag removal and reduction to create alkaline reduction slag;

[0050] 3. Desulfurization operation, the sulfur content and composition meet the requirements, the temperature reaches 1630°C, and steel tapping begins;

[0051] 4. Molten steel enters the refining furnace for slagging heating, vacuuming an...

Embodiment 2

[0058] Embodiment 2, make 1000kg corrosion-resistant free-cutting plastic mold steel, get:

[0059] C 2.7kg

[0060] Mn 4.0kg

[0061] Si 4.7kg

[0062] S 0.9kg

[0063] P 0.15kg

[0064] Cr 170kg

[0065] Mo 2.1kg

[0066] V 2.2kg

[0067] Ni 8.0kg

[0068] N 0.4kg

[0069] Iron and steel charge balance

[0070] Using electric furnace + vacuum degassing smelting process:

[0071] 1. Melt the iron and steel charge in an electric furnace, start slagging and dephosphorization at 1540°C, use a large amount of slag and flow slag;

[0072] 2. After dephosphorization, carry out slag removal and reduction to create alkaline reduction slag;

[0073] 3. Desulfurization operation, while adjusting the composition of molten steel. After the content of steel composition meets the requirements, the temperature reaches 1630 ° C, and steel tapping begins;

[0074] 4. Water enters the refining furnace for slagging heating, vacuuming and argon blowing operation, further desulfurizat...

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PUM

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Abstract

The invention relates the plastic mold steel. The weight percents of the components are as follows: C0.25-0.35, Mn0.50-1.00, Si0.30-0.60, S0.04-0.10, P<=0.025, Cr15.00-18.00, Mo0.05-0.03, V0.06-0.35, Ni0.60-1.00, N0.03-0.07, and the left are steel furnace burden. The method comprises the following steps: using electric furnace, vacuum degasification and electroslag remelting smelting. The invention also adopts the electric furnace and vacuum degasification smelting technology. The plastic mold steel has plastic mold steel, free-cutting machinability, homogeneous structure property and good deformability. The plastic mold steel is used to make large-scale plastic mold.

Description

technical field [0001] The invention belongs to steel products, more precisely, it is a corrosion-resistant and easy-cutting plastic mold steel. Background technique [0002] At present, the large-scale plastic mold steel produced by various domestic manufacturers has low corrosion resistance, poor uniformity of tissue hardness, poor cutting performance, and the plastic mold produced has a short service life and low comprehensive performance indicators. Contents of the invention [0003] In view of this, the object of the present invention is to provide a corrosion-resistant free-cutting plastic mold steel with high isotropy and structure uniformity. [0004] The purpose of the present invention is achieved through the following technical solutions: a corrosion-resistant free-cutting plastic mold steel, consisting of the following components in weight percentage: [0005] C 0.25-0.35 [0006] Mn 0.50-1.00 [0007] Si 0.30-0.60 [0008] S 0.04-0.10 [0009] P≤0.025 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/46C22C33/04C21C7/064C21C7/072C21D1/26C21D11/00
Inventor 肖瑞勇
Owner WUXI CHICHENG SPECIAL STEEL VENDITION
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