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Vacuum degreaser sintering furnace making method

Summary of vacuum degreasing sintering furnace


 The vacuum degreasing sintering furnace comprises a furnace seat and a sintering furnace fixed thereon, and also includes a water cooling device, a vacuum device and a degreasing device connected with the sintering furnace; the sintering furnace comprises a furnace door and a furnace body; the furnace body is provided with an internal heat insulation, a graphite storage tank, a pulley, a bracket and an outlet pipe; and the vacuum device comprises a vacuum tube, a pneumatic tube. High vacuum baffle valve, first bellows shock absorber, Roots vacuum pump, second bellows shock absorber, rotary vane vacuum pump, vacuum pump base and exhaust pipe; water cooling device includes the backwater tank outside the furnace and the circulating water pipeline connected with it. The advantages of the vacuum degreasing sintering furnace are novel structure, good sealing performance and thermal insulation performance, and good stability when the vacuum device is used.
 Vacuum degreasing sintering furnace is a common vacuum heat treatment equipment, which is widely used in the production of metal powder injection molding. The existing vacuum degreasing sintering furnace structure mainly includes furnace body and vacuum device. The existing metal powder vacuum sintering furnace has poor heat preservation effect, and the vacuum device is easy to vibrate when used, thus affecting the performance of sintered products in the furnace body.


High vacuum sintering furnace


Content of vacuum degreasing sintering furnace

1. The invention of the utility model aims to solve the shortcomings of the existing vacuum degreasing sintering furnace, and provides a vacuum degreasing sintering furnace with novel structure, good heat preservation effect and good stability when the vacuum device is used.
 2. in order to achieve the above purposes, the utility model adopts the following technical proposal:
 3. The vacuum degreasing sintering furnace includes the furnace seat and the sintering furnace fixed thereon, and also includes the water cooling device, the vacuum device and the degreasing device connected with the sintering furnace; the sintering furnace includes the furnace door and the furnace body, the furnace door and the furnace body are connected through the hinge, the furnace door is provided with a handle, and a plurality of groups of furnace door locking parts are arranged along the edge of the furnace door and the furnace body. The furnace body is equipped with a heated inner compartment, graphite storage box, pulley, bracket and outlet pipe, the heated inner compartment seals the middle part of the furnace body, carbon felt insulation layer is arranged on the inner edge wall of the heated inner compartment, the graphite storage box is in the sealed furnace, the bracket is fixed on the inner wall of the furnace body, and the graphite storage box passes through the pulley. The graphite storage tank is arranged on the upper part of the bracket, sliding on the bracket through a pulley, the upper end of the outlet pipe is in a sealed furnace, and the lower end of the outlet pipe is outside the furnace; the vacuum pumping device comprises a vacuum tube, a pneumatic high vacuum baffle valve, a first bellows shock absorber, a Roots vacuum pump, a second bellows shock absorber, and a rotary vane vacuum. Pump, vacuum pump base and exhaust pipe; Rotary vane vacuum pump and Roots vacuum pump are installed on the vacuum pump base, the vacuum tube inlet is in the furnace body, the vacuum tube outlet is connected with the exhaust pipe, pneumatic high vacuum baffle valve, Roots vacuum pump and rotary vane vacuum pump are arranged on the vacuum tube in turn along the direction of air inlet and air outlet, the first is the vacuum tube. A bellows shock absorber is arranged on a vacuum tube between a pneumatic high vacuum baffle valve and a Roots vacuum pump, and a second bellows shock absorber is arranged on a vacuum tube between a Roots vacuum pump and a rotary vane vacuum pump; a degreasing device includes a degreasing tube and a degreaser connected with it; a water cooling device includes a water tank outside the furnace and a water tank connected with the degreaser. A circulating water pipe circuit and a circulating water pipe road are connected with the furnace door, the furnace body and the bracket.
 4. as a priority, filters are installed on the vacuum tubes in front of the rotary vane vacuum pump and the roots vacuum pump.
 5. The vacuum degreasing sintering furnace adopting the above-mentioned technical scheme is connected with the furnace door and the furnace body through a hinge, and a handle is arranged on the furnace door, which is convenient to use. Along the edge of the furnace door and the furnace body, a number of sets of door locking parts are arranged. The middle part of the furnace body is sealed by heat insulation. Carbon felt insulation layer is arranged on the inner edge wall of heat insulation. Graphite storage tank is in the sealed furnace. The sealing performance and heat insulation performance are good, which can effectively prevent heat loss, heat insulation and carbon sequestration. The felt insulation layer is also used to reduce the contamination of furnace wall, heating body and other parts by lipid substances in metal powder. The first shock absorber is located on the vacuum tube between the pneumatic high vacuum baffle valve and the Roots vacuum pump, the second shock absorber is located on the vacuum tube between the Roots vacuum pump and the rotary vane vacuum pump, the first shock absorber and the second shock absorber are used to shock the sintering furnace, metal powder. In the process of sintering, the structure and properties of the products are greatly reduced, and the excessive vibration of the sintering furnace will directly affect the qualified rate of the products in the graphite storage tank. In summary, the advantages of the vacuum degreasing sintering furnace are novel structure, good sealing and thermal insulation performance, and good stability when the vacuum device is used.

Requirements for vacuum debinding sintering furnace

1. The vacuum degreasing sintering furnace, including the furnace seat and the sintering furnace fixed thereon, is characterized in that the sintering furnace includes a water cooling device, a vacuum device and a degreasing device connected with the sintering furnace; the sintering furnace includes the furnace door and the furnace body, the furnace door and the furnace body are connected through a hinge, the furnace door is provided with a handle, and a plurality of groups are arranged along the edge of the furnace door and the furnace body. Furnace door locking parts; furnace body is equipped with a heated internal insulation, graphite storage box, pulley, bracket and outlet pipe, the heated internal insulation will be sealed in the middle of the furnace, the heated internal edge wall of carbon felt insulation layer, graphite storage box in a sealed furnace, bracket fixed in the inner wall of the furnace body, graphite storage material The box is arranged on the upper part of the bracket through a pulley, and the graphite storage box slides on the bracket through a pulley. The upper end of the outlet pipe is in a sealed furnace, and the lower end of the outlet pipe is outside the furnace. Rotary vane vacuum pump, vacuum pump base and exhaust pipe; Rotary vane vacuum pump and Roots vacuum pump are installed on the vacuum pump base, the vacuum tube inlet is in the furnace body, the vacuum tube outlet is connected with the exhaust pipe, the pneumatic high vacuum baffle valve, Roots vacuum pump and rotary vane vacuum pump are arranged sequentially along the direction from inlet to outlet. On the vacuum tube, the first bellows shock absorber is arranged on the vacuum tube between the pneumatic high vacuum baffle valve and the Roots vacuum pump, the second bellows shock absorber is arranged on the vacuum tube between the Roots vacuum pump and the rotary vane vacuum pump, the degreasing device includes the degreasing tube and the degreaser connected with the degreaser, and the water cooling device includes the return water tank outside the furnace. The circulating water pipe road connects with the furnace door, the furnace body and the bracket.

2. The vacuum degreasing sintering furnace described in Fig. 1 is characterized in that filters are respectively installed on the vacuum tube in front of the rotary vane vacuum pump and Roots vacuum pump.

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