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Mold steel for cold extrusion of titanium spectacle frame

A technology of mold steel and spectacle frame, which is applied in the field of iron and steel metallurgy, can solve the problems of increased production costs, and achieve the effect of low cost and low content of precious alloy elements

Inactive Publication Date: 2014-05-21
WUXI XINSANZHOU STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this alloy also contains relatively high content of Mo, V, so the production cost is greatly increased

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A die steel for cold extrusion of titanium spectacle frame, the chemical composition of the die steel consists of the following components in weight percentage: C: 0.70, Si: 0.5, Mn: 1.3, Cr: 7.5, Ni: 0.5, V: 0.3, Mo: 0.2, W: 0.4, N: 0.02, B: 0.003, S≤0.015, P≤0.015, the balance is Fe and unavoidable impurities.

Embodiment 2

[0024] A die steel for cold extrusion of titanium spectacle frame, the chemical composition of the die steel consists of the following components in weight percentage: C: 0.90, Si: 0.3, Mn: 1.5, Cr: 6.5, Ni: 0.7, V: 0.1, Mo: 0.4, W: 0.2, N: 0.04, B: 0.001, S≤0.015, P≤0.015, the balance is Fe and unavoidable impurities.

Embodiment 3

[0026] A die steel for cold extrusion of titanium spectacle frame, the chemical composition of the die steel consists of the following components in weight percentage: C: 0.75, Si: 0.45, Mn: 1.35, Cr: 7.2, Ni: 0.55, V: 0.25, Mo: 0.25, W: 0.35, N: 0.025, B: 0.0025, S≤0.015, P≤0.015, the balance is Fe and unavoidable impurities.

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PUM

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Abstract

The present invention discloses a mold steel for cold extrusion of a titanium spectacle frame, wherein the chemical components of the mold steel comprise, by weight, 0.70-0.90% of C, 0.3-0.5% of Si, 1.3-1.5% of Mn, 6.5-7.5% of Cr, 0.5-0.7% of Ni, 0.1-0.3% of V, 0.2-0.4% of Mo, 0.2-0.4% of W, 0.02-0.04% of N, 0.001-0.003% of B, less than or equal to 0.015% of S, less than or equal to 0.015% of P, and the balance of Fe and unavoidable impurities.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgy, in particular to a die steel for cold extrusion of a titanium spectacle frame. Background technique [0002] Compression molding has become the main processing method in the manufacturing industry, especially in household appliances and daily necessities. The working conditions and performance requirements of the mold vary widely, so different steels are selected for different service conditions. The performance-price ratio of steel for molds is a parameter to measure its economic benefits. In addition to requiring similar compression resistance (ie hardness) to other cold-working molds, cold extrusion molds also require the highest possible strength and toughness. For molds that process high-strength materials and require high life (as large as possible the number of stampings), a certain fatigue resistance is also required. [0003] The existing materials used to make stainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/54B21C25/02
Inventor 林永峰
Owner WUXI XINSANZHOU STEEL