In industrial production, with a variety of presses and special tools installed on the press, through the pressure of metal or non-metallic materials to produce the required shape of parts or products, this special tool is collectively referred to as the mold.
When the mold originated is now impossible to verify. In the Stone Age, more than two million years ago, it is somewhat unrealistic to say that humans already knew how to make molds. At that time, human beings were mainly focused on survival and had no time or energy to think about anything other than survival. The Stone Age was an era dominated by stone instruments, of course, people also used wood, bamboo, bone to make devices for production activities.
The frequency of use of molds in industrial production is very high, through a variety of presses and through the special tools installed on the press to make metal or non-metallic materials into the required shape, we unified this special tool called mold. The use of cemented carbide as a material is called cemented carbide die, cemented carbide die production process each step is very critical, directly affect the quality and performance of cemented carbide die production. What is the production process of cemented carbide mold?
Several very important key points in the production process of cemented carbide die:
1: Spray drying of raw materials: The preparation of the mixture is protected by high-purity nitrogen under a fully closed ring mirror, which effectively reduces the possibility of oxygen increase of the mixture during the preparation process, and can effectively ensure the purity of the material and prevent the dirty of the material.
2: CIP (cold isostatic pressing) : The use of 3000Mpa isostatic pressing machine, effectively eliminate the production of pressing defects, to press the uniform density of the blank to provide a good guarantee.
3: SP low pressure burning strength: Z large sintering pressure and can reach 100 kg, so that the internal void of the alloy body can be effectively eliminated, so as to obtain a good densification of high hardness, high strength carbide die. The advanced temperature control system can effectively reduce the possibility of quality fluctuations in the cemented carbide mold.
4: cryogenic treatment: effectively improve the microstructure of the cemented carbide die, so that the internal stress of the cemented carbide die is effectively eliminated.
5: Analysis and testing: Guo-level testing center can carry out all kinds of performance testing, the use of ultrasonic inspection means to ensure the quality and stability of cemented carbide mold.
