Automatic telescopic carburizing gas nozzle device of vacuum low pressure carburizing device
A vacuum low-pressure carburizing and automatic expansion and contraction technology, applied in the direction of metal material coating process, coating, solid diffusion coating, etc., can solve the problem of uneven carburization of parts, and achieve the effect of ensuring the uniformity of carburization
Inactive Publication Date: 2013-02-20
BEIJING RES INST OF MECHANICAL&ELECTRICAL TECH
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Problems solved by technology
[0023] In order to overcome the problem that the fixed nozzle of the traditional vacuum carburizing furnace will cause uneven carburizing of the parts in the central area of the tooling, the purpose of the present invention is to provide a vacuum low-pressure carburizing equipment that can automatically expand the carburizing gas nozzle device. The telescopic carburizing gas nozzle device can enable the parts in the central area of the tooling to obtain the same supply of carburizing medium as the outer parts of the tooling under the condition of large furnace capacity and intensive furnace charging, so as to ensure uniform carburization of vacuum low-pressure carburizing parts sex
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[0034] figure 1 Shown is an embodiment of the automatic retractable carburizing gas nozzle device of the vacuum low-pressure carburizing equipment of the present invention. This embodiment is one of the research and development projects of vacuum high-temperature and low-pressure carburizing equipment. This vacuum high-temperature and low-pressure carburizing equipment was supported by the national "high-end CNC machine tool and basic manufacturing equipment" major scientific and technological project in the field of vacuum heat treatment during the "Eleventh Five-Year Plan" period. The only host R&D project.
[0035] figure 1 The shown auto-telescopic carburizing gas nozzle device includes a cylinder 6, a movable telescopic rod 2 and a high-temperature carburizing nozzle 1. The cylinder 6 is arranged outside the furnace body of the vacuum carburizing furnace, and the movable telescopic rod 2 passes through the furnace body and extends into the furnace body. One end of the m...
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An automatic telescopic carburizing gas nozzle device of a vacuum low pressure carburizing device comprises an air cylinder, a movable expansion link and a high temperature carburizing nozzle, wherein the air cylinder is arranged outside a vacuum carburizing furnace body; and the movable expansion link penetrates through the furnace body, one end outside of the furnace, of the movable expansion link is connected with an outer carburizing gas inlet, the end inside of the furnace body, of the movable expansion link is provided with the high temperature carburizing nozzle, and the air cylinder provides power for the movable expansion link to push the movable expansion link to move up and down. The device is connected with the bottom of the heating chamber furnace body of the vacuum low pressure carburizing furnace to ensure that the parts in the central area of a tool can obtain the same amount of carburizing medium as the parts in the outer area of the tool under the conditions of high furnace capacity and intensive charging, thus the carburizing uniformity of the vacuum low pressure carburizing parts can be ensured.
Description
technical field [0001] The invention belongs to the technical field of vacuum heat treatment equipment. Specifically relates to a carburizing gas nozzle device which can automatically adjust the depth of the nozzle extending into the tooling in vacuum low-pressure carburizing equipment. Background technique [0002] Carburizing heat treatment is widely used in metal thermal processing, and almost all transmission parts and wear-resistant parts need carburizing treatment. [0003] Vacuum high-temperature and low-pressure carburizing technology uses acetylene gas as the carburizing medium, and adopts unique low-pressure pulse vacuum carburizing technology and special high-temperature carburizing process to achieve high-precision vacuum carburizing of parts. Its technology is superior to the traditional gas carburizing equipment commonly used at present, and solves the problems that cannot be overcome by traditional gas carburizing. [0004] 1. Traditional gas carburizing pri...
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IPC IPC(8): C23C8/20
Inventor 周有臣宋家奇吴坚尹成锟王京晖刘永黄伟东刘俊祥陈志英丛培武
Owner BEIJING RES INST OF MECHANICAL&ELECTRICAL TECH