What is a degreasing sintering integrated furnace
source:
m.wheretocredit.cn | publish time:2025年06月05日
The degreasing and sintering integrated furnace is an equipment used for material processing, mainly in the fields of metal powder injection molding (MIM), powder metallurgy, ceramics, etc. It can achieve two production processes of degreasing and sintering in the same furnace. Here is the relevant introduction:
1. Working principle: During the degreasing stage, binders (such as PEG, paraffin, rubber, etc.) in the material are evaporated or decomposed and removed through heating and specific atmospheric conditions. In the sintering stage, under high temperature and certain pressure (such as vacuum, partial pressure, micro positive pressure, etc.) environment, atomic diffusion and fusion occur between powder particles, thereby improving the density and mechanical properties of the material.
2. Structural features: It usually adopts a horizontal water-cooled jacket structure, with front opening doors or front and rear double opening door designs. The heating element can be made of nickel chromium electric heating alloy or graphite, and can be arranged in multiple zones with independent temperature control in each zone. The correct temperature control can be achieved through programmable PID adjustment. At the same time, it is equipped with a degreasing sealed furnace chamber and a grease trap to reduce contamination of the inner furnace wall, insulation screen, and heating element, and improve the efficiency of degreasing and grease collection. In addition, it also has a vacuum system composed of rotary vane vacuum pumps, Roots vacuum pumps, etc., which can ensure that the required vacuum degree is achieved in the furnace.
3. Performance advantages: Compared to traditional degreasing and sintering step-by-step processes, integrated furnaces have many advantages. It can eliminate the need for repeated product movement, heating, and cooling, shorten the production cycle, and improve production efficiency. Integrated design avoids product damage and contamination that may occur during step-by-step processes, which is beneficial for improving product quality. At the same time, by adopting excellent thermal field control technology and insulation structural materials, temperature field uniformity can be achieved, and it is more energy-efficient than traditional designs.
4. Application field: In the field of powder metallurgy, it is used for degreasing and sintering of powder metallurgy injection molded products such as stainless steel and iron-based materials. In the production of hard alloys and high-temperature alloys, degreasing treatment and high-temperature sintering can be carried out on related products. In the production of magnetic materials, it is suitable for the extrusion and pre firing processes of ferrite magnetic sheets and other electronic components. For excellent ceramic materials such as cast, injection, 3D printing, and dry pressing ceramics, degreasing, adhesive removal, and sintering treatment can be performed.