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Spraying process for metal part surface treatment

A technology for surface treatment and metal parts, which is applied in the field of spraying technology for surface treatment of metal parts, and can solve the problems of poor adhesion between the coating and the surface of metal parts, falling off, and affecting the effect of corrosion resistance.

Inactive Publication Date: 2021-04-20
衢州创普机械设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent document CN107231767A discloses a corrosion-resistant and wear-resistant automobile seat module control box, which provides that the metal parts use a corrosion-resistant and wear-resistant layer to improve the performance of the product, and the bonding strength between the coating and the surface of the metal part Poor, long-term use will cause problems such as interface cracking or even falling off. Even if the corrosion-resistant and wear-resistant layer itself has good performance, the surface bonding strength is poor, which will affect the effect of corrosion resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of spraying process that the surface treatment of metal parts of the present embodiment is used comprises the following steps:

[0026] Step 1, surface excitation treatment: put the metal parts in the corona field for 10 minutes, and the corona field strength is 220KV / m, and then use plasma treatment, and the treatment is completed;

[0027] Step 2: Arrangement of active points: Spray a layer of active medium points on the metal parts first, and then use pulsed ion beams for exciting irradiation. The ion energy of the irradiation is 80keV, and the beam current density is 70A / cm 2 , The pulse width is 25ns, after the irradiation is over, wash it once with deionized water;

[0028] Step 3, the strengthening of the active point: the metal parts in step 2 are processed by thermal compression, and the treatment is completed;

[0029] Step 4, preparation of spraying agent: 20 parts of pyrophyllite, 5 parts of alumina, 1 part of titanium powder, and 1 part of NbFe powd...

Embodiment 2

[0038] A kind of spraying process that the surface treatment of metal parts of the present embodiment is used comprises the following steps:

[0039] Step 1, surface excitation treatment: put the metal parts in the corona field for 15 minutes, and the corona field strength is 250KV / m, and then use plasma treatment, and the treatment is completed;

[0040] Step 2, active point layout: first spray a layer of active medium on the metal parts, and then use pulsed ion beams for exciting irradiation. The irradiated ion energy is 120keV and the beam density is 90A / cm 2 , The pulse width is 35ns, after the irradiation is over, wash it with deionized water for 3 times;

[0041] Step 3, the strengthening of the active point: the metal parts in step 2 are processed by thermal compression, and the treatment is completed;

[0042] Step 4, preparation of spraying agent: 30 parts of pyrophyllite, 10 parts of alumina, 5 parts of titanium powder, and 2 parts of NbFe powder are sequentially se...

Embodiment 3

[0052] A kind of spraying process that the surface treatment of metal parts of the present embodiment is used comprises the following steps:

[0053] Step 1, surface excitation treatment: put the metal parts in the corona field for 12.5 minutes, and the corona field strength is 235KV / m, and then use plasma treatment, and the treatment is completed;

[0054] Step 2, active point layout: first spray a layer of active medium on the metal parts, and then use pulsed ion beams for exciting irradiation. The irradiated ion energy is 100keV and the beam density is 80A / cm 2 , The pulse width is 30ns, after the irradiation is over, wash it twice with deionized water;

[0055] Step 3, the strengthening of the active point: the metal parts in step 2 are processed by thermal compression, and the treatment is completed;

[0056] Step 4, preparation of spraying agent: 25 parts of pyrophyllite, 7.5 parts of alumina, 3 parts of titanium powder, and 1.5 parts of NbFe powder are sent into the mi...

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PUM

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Abstract

The invention discloses a spraying process for metal part surface treatment. The spraying process comprises the following steps: 1, surface excitation treatment, wherein a metal part is firstly placed in a corona field to be treated for 10-15 minutes, the field intensity of the corona field is 220-250 KV / m, then plasma treatment is adopted, and the treatment is completed; and 2, arrangement of active point locations. According to the spraying process, active medium points are distributed on the surface of the metal part and irradiated by pulsed ion beams, the activity of rare earth lanthanum oxide is excited, and in-situ growth of nano silicon dioxide on the surface of the metal part is promoted, so that a large number of uniform tiny pits are formed, adsorption and bonding of a subsequent spraying layer are facilitated, and the adsorption strength of the spraying layer is improved.

Description

technical field [0001] The invention relates to the technical field of spraying of metal parts, in particular to a spraying process for surface treatment of metal parts. Background technique [0002] During the processing, handling and use of metals, different degrees of oxidation and corrosion often occur, reducing the service life of metal materials or metal equipment. Therefore, it is necessary to treat the metal surface to increase its oxidation resistance, toughness and corrosion resistance. ,Extended service life. Metal materials are common and essential materials in people's lives, including iron, steel, aluminum and their alloys. Usually, the surface properties of metal materials are relatively active, and corrosion and other adverse phenomena are prone to occur under natural conditions, which in turn affects their quality and life. Therefore, it is necessary to modify the surface. The spraying treatment method is a common metal surface treatment process, which can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/14B05D5/02B05D3/14B05D3/10B05D3/06B05D3/00
Inventor 柯雪丽
Owner 衢州创普机械设备有限公司
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