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Drawing Dies Cemented Carbide Die

Country/Region china
Company Zhuzhou Tongda Cemented Carbide Co., Ltd
Categories Tungsten Carbide Die
Telephone 086-731-28164321 28164567
ICP License Issued by the Chinese Ministry
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Drawing Dies Cemented Carbide Die

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Cemented Carbide Die

Update: 2015/7/29View: 27
  • Brand: Tongda
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Cemented carbide has a performance between the tools and construction materials between ceramics and high-speed steel, has a overall performance of high hardness, high strength, high density, corrosion resistance, high temperature oxidation resistance and low coefficient of expansion. Its life expectancy is ten times or even several times over steel. Commonly used cemented carbide die is cold heading die, drawing die, hexagonal die, spiral mold, etc., Cemented carbide die is very widely used in the mold industry. And the industry generally uses cemented carbide cobalt.
WC-Co cemented Tungsten carbide is a new high-performance engineering materials. The direct use of the finished product after sintering alloy is widely used in molds, tools, measuring tools and wear-resistant, corrosion-resistant parts and other fields. The study found, WC- Co alloy can be heat strengthened, reinforced composite handle life of f cemented carbide die is four times without heat treatment, is 50 times of the original the steel mold, technology, has a significant economic benefit.
Advantages of cemented carbide dies
1.cemented carbide with high hardness, high wear resistance and high red hardness, at 550still maintain more than 56HRC hardness;
2.Has a high modulus of elasticity, generally is (4 ~ 7)104kg / mm2, and excellent rigidity at room temperature;
3.Have a high compressive strength which is greater than 6000MPa;
4.Have good resistance to oxidation and corrosion resistance, acid resistance, alkali resistance and high temperature not easily oxidized;
5.Has a low coefficient of thermal expansion, suitable for manufacturing high ,precision, sharp die.
Cemented carbide dies can be divided into four categories according to use:
1.Cemented carbide anvil
2.Cemented carbide drawing dies (such molds accounted for the vast majority of tungsten carbide die.)
3.Cold heading, cold punching, forming and shaping dies
4.Non-magnetic die
5.Hot tungsten carbide die
Several issues to consider when designing cemented carbide die
1.Selected part object. It must have a high yield, good structural shape, quality and dimensional accuracy to meet the requirements, blanking part thick and other characteristics.
2.Rational use of cemented carbide. For the most likely to wear on the parts need to analysis, if necessary, all the bottom and upper of die should use tungsten carbide. In some cases, such as structurally weak punch difficulty processing or fixed yet, you can use a reasonable tool steel and cemented carbide used in combination so that the mold manufacture and use must be the most reasonable and economical.
3.Convex and concave mold structure. In the cemented carbide die processing conditions allowed, cemented carbide mosaic structure more economical, easy to process and easy repairs in the overall structure of materials and processing .
Cemented carbide die surface modification technology
1.A solid cemented carbide infiltration techniques. Infiltration into the solid element is in the form of powder or paste coated on the base alloy, and is diffused in the hot state, the matrix alloy to form a surface diffusion layer is to achieve the modified purpose. Thereby increasing the hardness and cemented carbide die life.
2.Cemented carbide ion implantation. Ion implantation for carbide die, can improve their tribological properties. After the formation of the alloy interstitial nitrogen injection, point defects, dislocation networks, can improve its micro-hardness, mechanical properties and durability.
3.Cemented carbide surface coating technology. Surface coating technology is designed to improve a wear-resistant , heat-resistant, corrosion-resistant and soldering performance and is a new technologies to reduce the coefficient of friction.

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