Vacuum ion carburizing device
An ion carburizing and vacuum technology, used in metal material coating process, coating, solid diffusion coating and other directions, can solve the problems of slow carburizing speed, large heat treatment deformation, low carburizing efficiency, etc., and achieve fast heating speed. , uniform temperature and long service life
Inactive Publication Date: 2011-06-08
SHANGHAI SINO CARBIDE
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Problems solved by technology
[0004] The current carburizing equipment has the following disadvantages: slow carburizing speed, difficult to control the carburizing layer, poor carburizing uniformity, decarburization layer, low furnace utilization rate, large heat treatment deformation, rough and dull surface to be treated, carburizing low efficiency
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[0021] The present invention will be further described below in conjunction with accompanying drawing:
[0022] Such as figure 1 The vacuum ion carburizing device shown mainly includes the following six parts:
[0023] Heating chamber: The heating chamber is composed of a high-temperature heater, insulation layer, plasma generator, material rack tray, and measuring thermocouple. Its effective processing area is Φ800×900mm, the total capacity of the furnace is 400kg, and the maximum heating power designed is 100kW. The power supply is 50Kw, and the maximum heating temperature is 1050°C;
[0024] Transition chamber: The transition chamber mainly includes the middle door, furnace door, cold agitator, and airflow reversing device;
[0025] Oil quenching chamber: The oil quenching chamber mainly includes an oil agitator, an oil heater, quenching oil and a feeding car that goes to and from the oil quenching chamber;
[0026] Hydromechanical transmission system;
[0027] High tem...
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The invention relates to a carburizing device, in particular to a vacuum ion carburizing device. The device is characterized by mainly comprising the following six parts: a heating chamber, a transition chamber, an oil quenching chamber, a hydraulic and mechanical transmission system, a high-temperature heater and a vacuum system. Compared with the prior art, the device has the characteristics that: the heating chamber, the transition chamber and the oil quenching chamber have horizontal structures; a graphite carbon rod is used for heating, and is high in heating speed, uniform in temperature and long in service life; a pulse bias source provides a highly stable carburizing power supply; and a plurality of technological processes such as gas quenching, oil quenching, vacuum annealing, vacuum tempering and the like can be realized. The working pressure during ion carburizing is only one several hundredth of the atmospheric pressure, and carburizing gas can only be imported when the carburizing is required, so the consumption of the gas is very low. The electricity can also be saved due to the shortening of the treatment period. Discharged gas is basically hydrogen, so the discharged gas is nuisanceless. Moreover, a tiny amount of gas is discharged, so the safety is also guaranteed.
Description
technical field [0001] The invention relates to a carburizing device, in particular to a vacuum ion carburizing device. Background technique [0002] At present, the advanced carburizing devices used at home and abroad mainly include: gas carburizing devices and vacuum carburizing devices. Vacuum carburizing overcomes some of the shortcomings of gas carburizing. Vacuum ion carburizing is a carburizing technology that is superior to gas carburizing and vacuum carburizing. It uses the function of resistance heat source in the vacuum furnace, firstly heats the workpiece to the carburizing temperature, then passes the carburizing gas into the furnace, and applies a DC voltage between the workpiece (cathode) and the anode to ionize the gas, Glow discharge is generated to realize carburizing. [0003] In ordinary ion chlorination equipment, even if it consumes a large amount of power, it is impossible to make the workpiece reach the carburizing temperature only by ion bombardmen...
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IPC IPC(8): C23C8/36
Inventor 汪文芹刘朵朵
Owner SHANGHAI SINO CARBIDE