An energy-saving sintering furnace
A technology of sintering furnace and furnace body, which is applied in brush manufacturing, etc., which can solve problems such as heat loss, unfavorable energy saving, and easy burns of operators, and achieve the effects of accelerating temperature reduction, simplifying equipment structure, and simplifying processing flow
Active Publication Date: 2019-03-08
CHONGQING HEHAI CARBON PROD
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- Description
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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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[0022] The present invention will be further described in detail below through specific implementations:
[0023] The reference signs in the drawings of the specification include: furnace body 10, insulation layer 11, transition box body 20, cavity 21, second pressure valve 22, cylinder body 23, piston 24, air pump 25, refrigerant box body 26, evaporation The device 27, the oil pump 31, the oil tank 32, the valve seat 41, the valve core 42, the through hole 43, and the pressure chamber 44.
[0024] The embodiment is basically like 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 injection device. The inner wall of the furnace body 10 is provided with an insulation layer 11 to improve the thermal insulation capacity of the furnace body 10 so that the furnace body 10 can reach a higher temperature; the heating device is arranged in the furnace body 10 to heat the inte...
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Abstract
This patent discloses an energy-saving sintering furnace, which relates to a heating device; it includes a furnace body, an insulating layer fixed on the inner wall of the furnace body, a heating device installed in the furnace body, and a cooling device. The cooling device includes a transition box and an air pump. And the cooling part, the furnace body and the transition box are connected by an air pump, the air inlet end of the air pump is connected with the furnace body, and the gas outlet end of the air pump is connected with the transition box body; the cooling part includes a cylinder body, which is located in the cylinder body and can The axially sliding piston, the evaporator fixed on the side wall of the furnace body and located in the furnace body, the cylinder body is fixed on the transition box, one end of the cylinder body is the heating end located in the transition box body, and the other end of the cylinder body It is the compression end located outside the transition box, the heating end and the compression end are separated by a piston, the heating end is filled with expandable liquid, and the compression end is filled with refrigerant; the compression end and the evaporator are connected through the first pipeline, and the first The pipeline is provided with a first pressure valve. The sintering furnace has the function of energy saving.
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 introducing and exporting current. It has good electrical, thermal and lubricating properties, and has a certain mechanical strength and the instinct to inhibit commutation sparks. Almost all DC motors and commutation motors use brushes, which are an important part of the motor. [0003] The most important step in the brush manufacturing process is sintering. Sintering is the process of heating the powder or powder compact to a temperature lower than the melting point of its basic ingredients, and then cooling it to room temperature in a certain method and speed. The result of sintering is the bonding between the powder particles, the strength of the sintered body increases, and the aggregate of the powder particles becomes the agglomerate of crystal grain...
Claims
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IPC IPC(8): B22F3/00B22F3/16B22F3/24H01R43/12
Inventor曹双全
OwnerCHONGQING HEHAI CARBON PROD