A method of post-deformation correction of high-temperature enamel in an annular flame cylinder

A flame cylinder and high-temperature technology, which is applied in the fields of welding, heat treatment, machining, and spraying, can solve problems such as deformation, achieve the effects of reducing processing cycles, reducing labor intensity, and improving production efficiency

Active Publication Date: 2019-11-08
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for correcting deformation after high-temperature enamel coating of an annular flame tube, which can solve the deformation problem of multi-layer sheet metal welding flame tube after high-temperature enamel paint, and at the same time reduce the labor intensity of workers and reduce the processing cycle of parts. Improve the processing quality and production efficiency of parts

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  • A method of post-deformation correction of high-temperature enamel in an annular flame cylinder
  • A method of post-deformation correction of high-temperature enamel in an annular flame cylinder
  • A method of post-deformation correction of high-temperature enamel in an annular flame cylinder

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Embodiment Construction

[0026] The technical solution of the present invention is further described below in conjunction with the accompanying drawings, but the scope of protection is not limited to the above.

[0027] A method for deforming and shaping an annular flame tube after high temperature enamel, including the following process flow: sand blowing-roasting-correction-sand blowing-W300 high temperature enamel coating-thermal shaping-turning processing. After applying the high-temperature enamel, put the parts into the hot-calibration fixture and enter the furnace together for the hot-calibration process. The furnace temperature rises with the furnace, the heating time is 30-40min, the final temperature is 800±10℃, and the duration is 2.5~3.5h. Cooling with the furnace cooling to below 500 ℃, out of the furnace air cooling. After the part thermal calibration is completed, it directly meets the requirements of subsequent turning processing.

[0028] Such as Figure 1~7 As shown, in order to coopera...

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Abstract

The invention discloses an annular flame tube high-temperature post-enameling deformation correcting method and a fixture. The high-temperature post-enameling deformation correcting method adopts hotcorrecting, the hot correcting fixture is cooperated, and a processing method comprises the steps of contacting welding sections, heat treating, grit blasting, roasting, correcting, grit blasting, coating a W300 high-temperature enamel, hot correcting and turning. The invention provides the method for treating deformation of a parts after being coated with a high-temperature enamel, and an ideal size is obtained by utilizing a hot correcting manner. With hot correcting, high-precision enamel molded surface correction is realized, the problem of enamel damage caused by mechanical correction issolved, meanwhile, the labor intensity of workers is reduced, the processing cycle of the parts is reduced, and the production efficiency of the parts is improved.

Description

Technical field [0001] The invention belongs to the field of mechanical processing, and specifically relates to the fields of welding, spraying, heat treatment and the like, in particular to a method for controlling deformation of high-temperature enamel parts of an annular flame tube. Background technique [0002] The flame tube is a high-temperature combustion component of the main combustion chamber of an aeroengine. It is a typical large-scale thin-walled multilayer sheet metal high-temperature alloy welding assembly. The base material is GH4648. The flame tube components need to have good high temperature resistance, so the inner surface of the components is required to be sprayed with high temperature enamel to improve the high temperature resistance. [0003] The structure of the toroidal flame tube is relatively complicated. It is mainly assembled and welded by the inner and outer supporting section, the inner and outer supporting ring, the inner and outer fairing, the inne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D3/14B21D37/16
CPCB21D3/14B21D37/16
Inventor 丁清国夏峥嵘朱雁飞张旭黄顺李先号游晓君
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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