A device for surface plasma treatment of mold parts

Abstract

The invention provides a surface plasma treatment device for mold parts, which comprises a vacuum chamber, a rotary table is arranged at the lower part of the vacuum chamber, the rotary table is used for placing mold parts, a plasma processor is arranged above the vacuum chamber, and the plasma The processor includes a first inlet and a second inlet, the first inlet and the second inlet are respectively connected to the mixing chamber, an electrode assembly is arranged at the upper part of the mixing chamber, and a nozzle is arranged at the lower part of the mixing chamber, and the molten alloy is melted through the first inlet. The material is pressed into the mixing chamber, meets the high-speed flowing inert gas from the second inlet, and forms plasma mist droplets under the action of the electrode assembly. The plasma mist droplets are sprayed from the nozzle to the surface of the mold part to form an alloy film. The invention provides a method of using vacuum plasma coating, which can control the coating according to the different requirements of the mold parts.

Description

technical field [0001] The invention relates to the technical field of surface treatment of mold parts, in particular to a surface plasma treatment device of mold parts. Background technique [0002] Traditional mold parts need to be coated after production. However, because some mold parts are used in a high temperature environment, an alloy film needs to be coated on the surface. [0003] In the disclosed technology, for example, in the patent document with the publication number: "CN110004411A", an alloy coating method is disclosed, which includes the following steps: [0004] Step S1, the steel plate is sent to a vacuum chamber after degreasing and electrolytic cleaning; [0005] Step S2, performing surface ion cleaning after preheating the steel plate in the vacuum chamber; [0006] In step S3, the cleaned steel plate is sent to an evaporation device for bimetal mixed coating, single metal-single metal composite coating or single metal-bimetal mixed-single metal compo...

AI Technical Summary

Problems solved by technology

[0010] However, the above-mentioned technical method is not the best method at present. Because low-temperature plasma has the characteristics of low temperature and high charge density, it is currently widely used in the field of material surface treatment. At the same time, due to its high energy, low-temperature plasma can also be used as a The carrier of the material particles, so that the material particles have greater energy, which is convenient for deposition and film formation

Images