Zigong Tianxing Carbide Co., Ltd., focusing on the custom-made production of all kinds of hard alloy blank. Mainly in the production of various types of cemented carbide disk cutter blank, carbide rods blank, single straight hole rod, tungsten carbide plate blank and the finished product, wear-resistant alloy strip sheet blank, special cold heading die standard parts industry (blank forming), tungsten steel cold stamping die, metal red mold, with wire drawing die wire drawing factory, red punch, hard alloy mold, tungsten steel mold, microporous wire drawing die, rolling mills with carbide roll, hard alloy sandblasting machine nozzle, high pressure spray nozzle, milling cutters, all kinds of rotary burrs blank, all kinds of tungsten steel woodworking blade, seam with cutting tools, carbide cutter, litchi surface mining alloy ball tooth, brazing, shield knives and other products.

Our company on tungsten steel precision manufacturing and production of blank, accumulated a lot of experience, there are so many mould and alloy blank mould production equipment, in order to achieve a variety of customers on the blank of tolerance of high demand. Our tungsten steel blank sintering process is as follows:

 Tungsten steel sintering process can be divided into four basic stages:

1: removal forming agent and presintering stage, at this stage sintered body changes as follows:

Early removal of forming agent, sintering with the increase of temperature, molding agent gradually break down, or vaporization, out of the sintered body, at the same time, forming agent was more or less to increase carbon sintered body, increases the amount of carbon will vary depending on the type, quantity and sintering process of the forming agent of change.

2: solid phase sintering stage (800 ℃ -- eutectic temperature)

Before a liquid temperature, in addition to continue to what happened to the last stage, the process of the solid diffusion instead should intensify, plastic flow, sintered body appear obvious shrinkage.

3: the liquid phase sintering (eutectic temperature, sintering temperature)

When in liquid phase sintered body contraction finished quickly, and then produce crystalline transformation, form the basic organization and structure of the alloy.

4: cooling (sintering temperature, room temperature)

At this stage, the organization of the tungsten steel and phase composition varies with the different cooling condition and produce some changes, can make use of this characteristic, the tungsten steel heat treatment to improve its physical and mechanical properties.

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