CN105039849A

CN105039849A - Alloy used for gear mould

Info

Publication number: CN105039849A
Application number: CN201510406753.7A
Authority: CN
Inventors: 万金虎; 王勇; 何胜东; 潘豋好; 李广飞; 朱晶晶; 张寿湖; 纪俊; 朱永志; 张茂辉; 王柱; 肖玉桂; 沈慧茹
Original assignee: Jiangsu Yaoyao Casting Industry Co Ltd
Current assignee: Jiangsu Yaoyao Casting Industry Co Ltd
Priority date: 2015-07-13
Filing date: 2015-07-13
Publication date: 2015-11-11

Abstract

The invention belongs to the technical field of alloy materials, and particularly relates to alloy used for a gear mould. The alloy comprises, by weight, 4%-6% of carbon, 2%-4% of tungsten, 1%-1.5% of aluminum, 0.25%-0.45% of tin, 0.3%-0.45% of titanium, 0.4%-1% of zinc, 2%-3% of cobalt and the balance iron. The alloy used for the gear mould has the beneficial effects of being low in cost, high in structural strength, good in chemical stability and long in service life.

Description

A kind of alloy for gear die

Technical field

The invention belongs to technical field of alloy material, be specifically related to a kind of alloy for gear die.

Background technology

Mould is used to the instrument of formed article, belong to precision tool, complex-shaped, bear the expansive force of blank, all have higher requirements to structural strength, rigidity, surface hardness, surfaceness and working accuracy, being used for the quality of the material making mould then determines the quality of mould, usually the punching block die manufacturing cost adopted in prior art is high, cycle is long, the advantage of lower cost of alloy material, and more easily realizes the requirement of mould in plasticity, hardness, intensity etc.

Summary of the invention

Goal of the invention of the present invention is, provide a kind of structural strength high, chemical stability is good, the alloy for gear die of long service life.

In order to realize above goal of the invention, the invention provides a kind of alloy for gear die, comprising the component of following weight percent: carbon 4-6%; Tungsten 2-4%; Aluminium 1-1.5%; Tin 0.25-0.45%; Titanium 0.3-0.45%; Zinc 0.4-1%; Cobalt 2-3%; Surplus is iron.

Further, the rare earth that weight percent is 0.2-0.3% can also be added.

Further, the molybdenum that weight percent is 0.5-0.8% can also be added.

The invention has the beneficial effects as follows: the cost of this mould alloy is low, and structural strength is high, chemical stability is good, and long service life.

Embodiment

The preferred embodiments of the invention 1 are: a kind of alloy for gear die, comprises the component of following weight percent: carbon 4.5%; Tungsten 2%; Aluminium 1%; Tin 0.45%; Titanium 0.45%; Zinc 0.5%; Cobalt 3%; Surplus is iron.

Preferred embodiment 2 is: a kind of alloy for gear die, comprises the component of following weight percent: carbon 5%; Tungsten 2%; Aluminium 1.2%; Tin 0.25%; Titanium 0.4%; Zinc 0.7%; Cobalt 2.5%; The rare earth of 0.2%; Surplus is iron.

Preferred embodiment 3 is: a kind of alloy for gear die, comprises the component of following weight percent: carbon 6%; Tungsten 4%; Aluminium 1.2%; Tin 0.3%; Titanium 0.35%; Zinc 0.8%; Cobalt 2.5%; The molybdenum of 0.8%; Surplus is iron.

The above, be only the preferred embodiments of the present invention, is not restriction the present invention being made to any other form, and any amendment done according to technical spirit of the present invention or equivalent variations, still belong to the present invention's scope required for protection.

Claims

1. for an alloy for gear die, it is characterized in that: the component comprising following weight percent: carbon 4-6%; Tungsten 2-4%; Aluminium 1-1.5%; Tin 0.25-0.45%; Titanium 0.3-0.45%; Zinc 0.4-1%; Cobalt 2-3%; Surplus is iron.

2. a kind of alloy for gear die according to claim 1, is characterized in that: can also add the rare earth that weight percent is 0.2-0.3%.

3. a kind of alloy for gear die according to claim 1 and 2, is characterized in that: can also add the molybdenum that weight percent is 0.5-0.8%.