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Treatment technology for surface protection of rubber magnets

A rubber magnet and processing technology, applied in coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve the problems of easy breakage, easy oxidation of the surface of rubber magnets, easy oxidation of rubber magnets, etc., to solve the problem of surface oxidation , The effect of improving the surface treatment speed and reducing the treatment cost

Inactive Publication Date: 2018-10-26
HENGDIAN GRP DMEGC MAGNETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned problems that the rubber magnets are easily oxidized and easily damaged, and provide a surface protection treatment process for rubber magnets that can solve the problems of easy oxidation and damage on the surface of rubber magnets, and can be produced in a continuous assembly line

Method used

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  • Treatment technology for surface protection of rubber magnets
  • Treatment technology for surface protection of rubber magnets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A rubber magnet surface protection treatment process is characterized in that it comprises the following steps:

[0035] a) Spraying: uniformly spray UV varnish with a thickness of 0.1 μm on the surface of the ferrite rubber magnet;

[0036] b) One-time curing: put the rubber magnet sprayed with UV varnish on the surface for one-time curing under a UV lamp; the irradiation energy of the UV lamp is 50J, the number of UV lamp groups is one group, and the temperature during treatment is 50°C;

[0037] c) Secondary curing: place the rubber magnet after primary curing under natural light at 40°C for secondary curing;

[0038] d) Cooling: Cool the post-cured rubber magnet at room temperature.

[0039] Among them, the UV varnish is prepared from the following raw materials in parts by weight: 100 parts of modified epoxy acrylic resin, 50 parts of modified polyurethane acrylate, 20 parts of methacrylate, and 10 parts of 1,6-hexanediol diacrylate , 4 parts of nano silicon diox...

Embodiment 2

[0042] A rubber magnet surface protection treatment process is characterized in that it comprises the following steps:

[0043] a) Spraying: uniformly spray UV varnish with a thickness of 20 μm on the surface of the ferrite rubber magnet;

[0044] b) One-time curing: put the rubber magnet sprayed with UV varnish on the surface for one-time curing under a UV lamp; the irradiation energy of the UV lamp is 2000J, the number of UV lamp groups is two groups, and the temperature during treatment is 100°C;

[0045] c) Secondary curing: place the rubber magnet after primary curing at a temperature of 50°C under LED light with a wavelength of 405nm for secondary curing;

[0046] d) Cooling: Cool the post-cured rubber magnet at room temperature.

[0047] Among them, the UV varnish is made from the following raw materials in parts by weight: 100 parts of modified epoxy acrylic resin, 60 parts of modified polyurethane acrylate, 30 parts of methacrylate, and 20 parts of 1,6-hexanediol dia...

Embodiment 3

[0050] A rubber magnet surface protection treatment process is characterized in that it comprises the following steps:

[0051] a) Spraying: uniformly spray UV varnish with a thickness of 5 μm on the surface of the NdFeB rubber magnet;

[0052]b) One-time curing: put the rubber magnet sprayed with UV varnish on the surface for one-time curing under a UV lamp; the irradiation energy of the UV lamp is 1000J, the number of UV lamp groups is three groups, and the temperature during treatment is 65°C;

[0053] c) Secondary curing: place the rubber magnet after primary curing at a temperature of 45° C. for LED light with a wavelength of 400 nm for secondary curing, and at the same time, the temperature is uniformly lowered to room temperature.

[0054] Among them, the UV varnish is made from the following raw materials in parts by weight: 100 parts of modified epoxy acrylic resin, 55 parts of modified polyurethane acrylate, 25 parts of methacrylate, and 15 parts of 1,6-hexanediol di...

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Abstract

The invention belongs to the technical field of magnetic materials, and discloses a treatment technology for surface protection of rubber magnets. The technology includes the steps of spraying, primary solidifying, secondary solidifying and others, wherein in spraying, UV gloss oil capable of being solidified under ultraviolet light and visible light is adopted; in primary solidifying, ultravioletlight solidifying is adopted for obtaining intensity primarily; in secondary solidifying, visible light solidification consuming longer time is adopted for obtaining intensity completely. The methodthat gloss oil is applied to a surface is adopted, the gloss oil is solidified on the surfaces of the rubber magnets through ultraviolet light solidification and visible light solidification to form alayer of gloss oil protective film isolated with air, and therefore the problems are solved that the surfaces of the rubber magnets are oxidized and damaged; according to the treatment technology, continuous flow line production can be realized, surface treatment speed can be substantially increased, and treatment costs are substantially lowered.

Description

technical field [0001] The invention relates to the technical field of magnetic materials, in particular to a rubber magnet surface protection treatment process. Background technique [0002] The surface of rubber magnet products is very easy to oxidize, and it is also very easy to be damaged by bumps, so the surface must be treated with anti-oxidation. At present, the traditional surface treatment methods of rubber magnets are mainly spraying flexible epoxy paint on the surface or doing parylene treatment on the surface. Surface spraying with epoxy paint and parylene treatment process has low efficiency, cannot be continuously produced, and the treatment process is not environmentally friendly, and the price of surface treatment is also high. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned problems that the rubber magnet is easily oxidized and easily damaged, and provides a rubber magnet surface protection treatment...

Claims

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Application Information

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IPC IPC(8): C08J7/04C09D163/10C09D175/14C09D7/61C09D7/63C08L21/00
CPCC08J7/0427C08J2321/00C08J2463/10C08J2475/14C08K2201/011C09D7/61C09D7/63C09D163/10C08L75/14C08K3/36
Inventor 杜军杰李园园曹江
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD