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Carburizing medium spraying device

A technology of injection device and carburizing medium, applied in the field of heat treatment, can solve the problems of black spots on the surface of the workpiece, pipeline blockage, insufficient atomization of the dripping pipeline, etc., and achieve the effect of ensuring the carburizing atmosphere and avoiding pipeline blockage.

Pending Publication Date: 2021-12-31
NANJING HIGH SPEED GEAR MFG
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Problems solved by technology

[0004] In the prior art, the liquid medium is mainly dripped into the carburizing furnace through pipelines. When the dripping amount of the liquid medium is not large, the liquid medium can be atomized and cracked in time. When it is increased, the infusion pipeline is prone to problems such as insufficient atomization and pipeline blockage, which will cause inconsistency between the depth of the carburized layer on the surface of the workpiece and the concentration of carbon on the surface, resulting in uneven depth of the effective hardened layer on the workpiece after heat treatment, large heat treatment deformation, Problems such as black spots on the surface of the workpiece

Method used

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  • Carburizing medium spraying device
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Embodiment Construction

[0027] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a d...

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Abstract

The invention relates to the technical field of heat treatment, and discloses a carburizing medium spraying device. The carburizing medium spraying device is used for forming a carburizing atmosphere in a carburizing furnace, and comprises a medium container for containing a carburizing medium; a supercharging device communicated with the medium container through a first conveying pipe; and a spraying device which is communicated with the supercharging device through a second conveying pipe and comprises a spraying pipe, wherein the spraying end of the spraying pipe is arranged in the carburizing furnace, a sputtering plate is arranged at the spraying end of the spraying pipe, a spraying opening is formed by the sputtering plate and the spraying end, and the carburizing medium sprayed out of the spraying end is splashed outwards from the spraying opening after impacting the sputtering plate. By means of the structure, the carburizing medium spraying device can promote the carburizing medium to be rapidly atomized and cracked in the carburizing furnace, pipeline blockage is effectively avoided, and it is guaranteed that the carburizing atmosphere is uniform.

Description

technical field [0001] The invention relates to the technical field of heat treatment, in particular to a carburizing medium injection device. Background technique [0002] Carburizing is a kind of metal surface treatment process. It is a chemical heat treatment process that allows carbon atoms to penetrate into the surface of the workpiece by placing the workpiece in a carburizing medium to heat and keep it warm. Carburizing is already the most widely used chemical heat treatment process in the machinery manufacturing industry. At present, gas carburizing is widely used due to its high production efficiency, easy realization of mechanization and automatic production. [0003] Generally, the carburizing medium for gas carburizing has Rx endothermic atmosphere, directly generated atmosphere, nitrogen methanol atmosphere and drop injection atmosphere. Among them, in nitrogen-methanol atmosphere and dripping atmosphere, methanol, ethanol, ethyl acetate, isopropanol and other ...

Claims

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Application Information

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IPC IPC(8): C23C8/20
CPCC23C8/20
Inventor 赵建森米艳军占彬张文江红兵
Owner NANJING HIGH SPEED GEAR MFG
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