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Energy-saving sintering furnace

A technology of sintering furnace and furnace body, which is applied in the direction of brush manufacturing, etc., which can solve the problems of heat loss, easy burns of operators, unfavorable energy saving, etc., and achieve the effects of accelerating temperature reduction, simplifying equipment structure, and simplifying processing flow

Active Publication Date: 2018-01-05
CHONGQING HEHAI CARBON PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing sintering steps include placing the powder compact in a sintering furnace for heating for a period of time, and then taking out the powder compact and placing it in a boiler for low-pressure cooling to room temperature. Since the sintering step needs to be transferred between the sintering furnace and the boiler, and Due to the extremely high temperature of the sintering furnace, the operator is easily burned after opening the sintering furnace; and a large amount of heat will be lost when the sintering furnace is opened, which is not conducive to energy saving

Method used

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Embodiment Construction

[0022] The present invention will be described in further detail below by means of specific embodiments:

[0023] The reference signs in the accompanying drawings of the description include: furnace body 10, insulation layer 11, transition box body 20, cavity body 21, second pressure valve 22, cylinder body 23, piston 24, air pump 25, refrigerant box body 26, evaporation Device 27, oil pump 31, oil tank 32, valve seat 41, spool 42, conduction hole 43, compressed air chamber 44.

[0024] The embodiment is basically as figure 1 , figure 2 Shown:

[0025] The energy-saving sintering furnace of this embodiment includes a furnace body 10, a heating device, a cooling device and an oil spraying device. The inner wall of the furnace body 10 is provided with an insulating layer 11 to enhance the heat insulation capacity of the furnace body 10 so that a higher temperature can be reached in the furnace body 10; the heating device is arranged in the furnace body 10 to heat the inside ...

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Abstract

The invention discloses an energy-saving sintering furnace, and relates to a heating device. The energy-saving sintering furnace comprises a furnace body, a heat preservation layer fixed to the innerwall of the furnace body, a heating device and a cooling device, wherein the heating device is arranged in the furnace body. The cooling device comprises a transition box, an air pump and a cooling part, wherein the furnace body is connected with the transition box through the air pump, the air inlet end of the air pump communicates with the furnace body, and the air outlet end of the air pump communicates with the transition box. The cooling part comprises a cylinder, a piston arranged in the cylinder and capable of sliding in the axial direction of the cylinder, and an evaporator fixed to the side wall of the furnace body and located in the furnace body. The cylinder is fixed to the transition box, one end of the cylinder is a heated end arranged in the transition box, and the other endof the cylinder is a compression end arranged outside the transition box. The heated end and the compression end are isolated through the piston, expandable liquid is arranged in the heated end, and arefrigerant is arranged in the compression end. The compression end communicates with the evaporator through a first pipeline, and the first pipeline is provided with a first pressure valve. The sintering furnace has an energy saving function.

Description

technical field [0001] The invention relates to a heating device, in particular to an energy-saving sintering furnace. Background technique [0002] The brush is used on the commutator or slip ring as a sliding contact body for importing and exporting current. It has good electrical conductivity, thermal conductivity and lubricating properties, and has a certain mechanical strength and the instinct to suppress commutation sparks. Almost all DC motors, as well as commutated motors, use brushes, which are an important part of the motor. [0003] The most important step in the brush manufacturing process is sintering, which is the process of heating powder or powder compact to a temperature lower than the melting point of its basic components, and then cooling it to room temperature in a certain method and speed. As a result of sintering, bonding occurs between powder particles, the strength of the sintered body increases, and the aggregates of powder particles are changed in...

Claims

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Application Information

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IPC IPC(8): B22F3/00B22F3/16B22F3/24H01R43/12
Inventor 曹双全
Owner CHONGQING HEHAI CARBON PROD
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