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How do you reasonably control the continuity of metal powder injection molding sintering
In a certain temperature range, the higher the sintering temperature, the greater the density, the little change, and the temperature will be different. In a certain range, the larger the size, the greater the density. At the same time, continuous sintering can be carried out. Through reasonable control, the work quality can be improved.
Metal powder injection molding continuous sintering method:
The first step is to degrease the blanks made of metal powder at low temperature. The second step is to sinter the parts after degreasing. The third step is to cool the parts formed after sintering, and then adjust the properties of the parts. According to the processing process of the parts, the heating furnace is divided into three sections, so as to adapt the processing of the parts to the process. The first section is the low-temperature degreasing section, It is to degrease the metal powder blank. The second section is the part sintering section, which is used to sinter the parts, and the third section is the cooling section, which is used to cool the newly sintered parts, adjust the performance of the parts, and improve the quality and service life of the parts.
The system design of controlling continuous sintering furnace is divided into four different points: different devices, different working modes, different control methods and different number of contacts. In addition, PLC generally has step-by-step control instructions, which can carry out further step-by-step control.
Metal powder injection molding materials provide a consistent alloy chemical composition and particle size, and provide accurate shrinkage when making walls with special accuracy (thickness, uniformity, raw material transition, warpage and voids), corner nodes (intersections, loads, stiffness), as well as texture and illustrations (threads, grooves, lettering aesthetics).
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