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A metal surface laser bluing treatment device and method

A metal surface, bluing treatment technology, applied in the direction of metal material coating process, coating, solid-state diffusion coating, etc., can solve the problems of difficult real-time monitoring of the degree of bluing of the workpiece, inconvenient production and processing, waste of the environment, etc. High energy utilization rate, less environmental pollution, and the effect of protecting workpieces

Inactive Publication Date: 2017-09-05
NORTHWEST INST OF NUCLEAR TECH
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Problems solved by technology

The main problem with these processes is that the degree of bluing of the workpiece is difficult to monitor in real time. Only by testing and evaluating the samples after bluing treatment, and adjusting parameters such as bluing solution and time, to obtain the best process parameters, It brings inconvenience to actual production and processing, and at the same time, it is easy to cause waste and environmental pollution

Method used

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  • A metal surface laser bluing treatment device and method
  • A metal surface laser bluing treatment device and method

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Embodiment Construction

[0025] Taking the metal iron surface as an example to carry out bluing treatment below, introduce the processing principle of the present invention.

[0026] Such as figure 1 As shown, the beam 2 output by the laser 1 is homogenized and shaped by the beam shaping system 3, and then enters the surface of the workpiece 6 to be blued through the input port of the integrating sphere 4, and the workpiece 6 to be blued is arranged at the output of the integrating sphere 4 After the scattered light on the surface is collected by the integrating sphere, the intensity amplitude signal of the scattered light is recorded by the photodetector 5 arranged on the integrating sphere 4 and the signal recorder 7 at the rear end. The type of photodetector 5 can be selected according to the actual power and wavelength of the laser beam.

[0027] When the laser beam with a certain power density can quickly heat the metal iron surface, in the air environment, the heated iron surface can quickly un...

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Abstract

The invention discloses a metal surface laser bluing treatment device and method capable of real-time monitoring, including a laser, a beam shaping system and a scattered light monitoring system. After the laser beam generated by the laser is shaped, it is evenly irradiated on the entire surface of the workpiece to be processed through the scattered light monitoring system. The process and device of the present invention use the absorption and interference of the oxide film formed by the bluing of the metal surface on the incident laser light for real-time monitoring of the bluing degree, and use the high sensitivity of the photodetector to convert the bluing degree to The real-time voltage signal and the control of the laser light output have realized the surface bluing treatment of different metals that can be monitored in real time. It has the characteristics of strong applicability, simple and convenient operation, no environmental pollution, and process control.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and relates to a device and method for bluing metal surface treatment, in particular to a device and method for bluing metal surface treatment by using a laser. Background technique [0002] The bluing process is a material protection technology. Its essence is that the surface of steel and other metals undergoes chemical reactions, mainly oxidation reactions, to form a blue-black oxide film that is uniform and dense, has a certain thickness, strong adhesion, and good corrosion resistance. , Play the role of beautification, corrosion resistance and protection of the workpiece. At present, the main processes of metal surface bluing are: hot alkali bluing, normal temperature bluing, graphite fluidized bed bluing, resistance heating bluing, lead bath heating bluing, electromagnetic induction heating bluing and oxygen-containing steam bluing. The main problem with these processes is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C8/12
Inventor 吴涛涛周孟莲王立君韦成华吴立雄朱永祥蔡跃王家伟
Owner NORTHWEST INST OF NUCLEAR TECH
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