Direct gas quenching unit for mesh-belt continuous brazing furnace
A gas quenching and brazing furnace technology, applied in the direction of quenching devices, quenching agents, auxiliary devices, etc., can solve the problems of environmental pollution, high production costs, uneven quenching of workpieces, etc., to achieve reduced production costs, high production efficiency, and high quality reliable effect
Active Publication Date: 2013-08-21
临沂市金立机械有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to solve the technical problems of uneven quenching of the workpiece, high production cost and serious environmental pollution in the prior art, and provide a direct gas quenching device for the mesh belt type continuous brazing furnace to overcome the deficiencies of the prior art
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Embodiment Construction
[0016] Referring to the accompanying drawings, the present invention includes a gas quenching chamber 1 connected to a brazing furnace 9 and a high-pressure centrifugal fan 7 driven by a frequency modulation motor 8; the upper part of the gas quenching chamber 1 is provided with a gas injection chamber 2 and a rotatable adjustable air curtain 3; The gas injection chamber 2 communicates with the air outlet of the high-pressure centrifugal fan 7 through the air inlet pipe 6, and the air inlet pipe 6 is provided with a branch pipe 11 connected with the liquid ammonia decomposition furnace; the top of the gas quenching chamber 1 is provided with a suction pipe 4. The suction pipe 4 communicates with the air inlet of the high-pressure centrifugal fan 7 through the filter 10 and the cooler 5; a hydrogen adsorption device 12 can be provided on the air inlet pipe 6.
[0017] The gas quenching device of the present invention is installed between the welding zone and the cooling zone. Af...
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The invention discloses a direct gas quenching unit for a mesh-belt continuous brazing furnace, which comprises a gas quenching chamber (1) and a high-pressure centrifugal fan (7), wherein the gas quenching chamber (1) is connected with a brazing furnace (9), and the high-pressure centrifugal fan (7) is driven by a variable-frequency motor (8). The invention is characterized in that the upper part of the gas quenching chamber (1) is provided with a gas injection chamber (2) and a rotatable and adjustable gas curtain (3); the gas injection chamber (2) is communicated with an air outlet of the high-pressure centrifugal fan (7) through an air inlet pipe (6), and the air inlet pipe (6) is provided with a branch pipe (11) communicated with a liquid ammonia decomposing furnace; the top of the gas quenching chamber (1) is provided with an air suction pipe (4); the air suction pipe (4) is communicated with an air inlet of the high-pressure centrifugal fan (7) through a filter (10) and cooler (5); and the air inlet pipe (6) can be provided with a hydrogen adsorption device (12). The gas quenching unit is directly used for quenching workpieces by using nitrogen and hydrogen, which are generated by the brazing auxiliary apparatus-liquid ammonia decomposing furnace and pressurized by the fan; and compared with the oil-quenched workpieces in the prior art, the workpieces which are directlyquenched by gas with the gas quenching unit have the advantages of no surface oxidation, reliable quality, high production efficiency and lower production cost, and the hardness can be adjusted and set according to needs.
Description
technical field [0001] The invention belongs to the technical field of welding and quenching equipment, and relates to a direct gas quenching device for a mesh-belt type continuous brazing furnace. Background technique [0002] In the prior art, after the workpiece is brazed in the brazing furnace, the workpiece is mostly quenched in water or oil by manual clamping. This quenching method is time-consuming and laborious, and it is difficult to realize continuous and automatic production, and there is also the problem of uneven quenching of the workpiece. Problem; Also there is the technical problem that the auxiliary equipment liquid ammonia decomposition furnace of welding and quenching process produces serious environmental pollution to the gas in addition. [0003] In order to realize the automation of quenching, application number 201010124182.5 discloses a nitrogen and water mixed gas injection quenching device at atmospheric pressure, which includes an air compressor, a...
Claims
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IPC IPC(8): C21D1/613C21D1/62B23K3/08
CPCY02P70/10
Inventor 曹祥奇宋家隆温以民顾为宋家杰
Owner 临沂市金立机械有限公司