The vacuum debinding and sintering furnace is mainly used for debinding and sintering products made of tungsten alloys, high-density alloys, molybdenum alloys, titanium alloys, and cemented carbides, integrating debinding and sintering processes. This equipment is specifically designed for the debinding and sintering of metal injection-molded green bodies.
Its workflow mainly includes two stages: debinding and sintering. In the debinding stage, the equipment is heated under vacuum or a controlled atmosphere to volatilize or decompose the binder in the green body, ensuring that the furnace body is not contaminated by binder vapors. In the sintering stage, after debinding or within the same cycle, the material particles are densified under higher temperatures and specific atmospheres such as vacuum, partial pressure, and micro-positive pressure.
To achieve the above process, the equipment relies on several key technological systems. Heating and temperature uniformity control are achieved through multi-zone independent temperature control methods such as two- or three-zone systems, as well as a special furnace chamber structure and heater arrangement, achieving temperature uniformity of ±1K to ±5℃. The atmosphere and pressure control system possesses multiple atmosphere control capabilities, including vacuum, partial pressure, and micro-positive pressure, and optimizes gas flow through structures such as gas guide boxes to ensure uniform atmosphere dispersion. The degreasing exhaust gas treatment system employs a special sealed degreasing box, multi-stage wax traps, or a binder collection and filtration system to efficiently collect and discharge volatile binders, protecting furnace components.
Safe operation of the equipment relies on safety interlocking devices, such as pressure and atmosphere interlocks, to prevent accidents.
