CN-121975430-A - Noise-reducing wear-resistant magnetic conductive sintered coating and preparation method and application thereof

Abstract

The invention relates to a magnetic conductive coating, in particular to a noise-reducing wear-resistant magnetic conductive sintering coating and a preparation method and application thereof, wherein the noise-reducing wear-resistant magnetic conductive sintering coating comprises, by weight, 40-50 parts of a film-forming colloid, 25-35 parts of a magnetic conductive filler, 10-15 parts of carbide, 3-5 parts of polyester fiber, 1-2 parts of a silane coupling agent, 1-3 parts of a construction auxiliary agent and 1-2 parts of a curing agent.

Inventors

• CAI YOULUN
• DING HUABO

Assignees

• 佛山市欧贝亲智能科技有限公司

Dates

Publication Date

20260505

Application Date

20260228

Claims (10)

1. 1. The noise-reducing wear-resistant magnetic conductive sintered coating is characterized by comprising the following raw materials in parts by weight: 40-50 parts of film forming colloid, 25-35 parts of magnetic conductive filler, 10-15 parts of carbide, 3-5 parts of polyester fiber, 1-2 parts of silane coupling agent, 1-3 parts of construction auxiliary agent and 1-2 parts of curing agent.
2. 2. The noise-reducing wear-resistant magnetic conductive sintered coating of claim 1 wherein the film-forming colloid is RSN-0805.
3. 3. The noise-reducing wear-resistant magnetic conductive sintered coating of claim 1 wherein the magnetic conductive filler is carbonyl iron powder.
4. 4. The noise-reducing wear-resistant magnetic conductive sintered coating of claim 1, wherein the carbide is powder obtained by high-temperature carbonization grinding of chaff and sieving with a 100-mesh sieve.
5. 5. The noise-reducing wear-resistant magnetic conductive sintered coating of claim 1, wherein the construction auxiliary agent is obtained by mixing fumed silica, a dispersing agent, a defoaming agent and the like.
6. 6. The noise-reducing wear-resistant magnetic conductive sintered coating of claim 1 wherein the curing agent is potassium acetate.
7. 7. A method of preparing a noise-reducing wear-resistant magnetically permeable sintered coating as claimed in any one of claims 1 to 6, comprising the steps of: step one, weighing raw materials with formula amount; Step two, dissolving a silane coupling agent in alcohol to obtain a solution, adding a magnetic conductive filler and carbide into the solution, stirring for 1-3 hours at 100-500r/min, and evaporating the alcohol for later use; Step three, adding the rest raw materials, stirring for 5-10min at 20-50r/min, and stirring for 10-20min at 200-500r/min to obtain the coating; and step four, coating the coating on a base surface, and sintering to obtain the noise-reducing wear-resistant magnetic conductive sintered coating.
8. 8. The method for preparing the noise-reducing wear-resistant magnetic conductive sintered coating according to claim 7, wherein in the fourth step, the sintering is performed by a step heating method, wherein the temperature is 15-35 ℃ for 5-8h,70-85 ℃ for 1-2h and 180-200 ℃ for 1-2h.
9. 9. The method of claim 8, wherein in the fourth step, the thickness of the coating is 200-300. Mu.m.
10. 10. Use of a noise-reducing wear-resistant magnetically permeable sintered coating according to claims 1-6 in a pot, for wear-and noise-reduction of the bottom surface of the pot.

Description

Noise-reducing wear-resistant magnetic conductive sintered coating and preparation method and application thereof Technical Field The invention relates to a magnetic conductive coating, in particular to a noise-reducing wear-resistant magnetic conductive sintering coating, and a preparation method and application thereof. Background The magnetic conductive coating of the induction cooker generally contains magnetic conductive filler, and inevitably vibrates in the magnetic conductive process, thereby generating noise. In this regard, some products are noise-reduced by using porous materials, for example, a magnetic conductive material, a magnetic conductive plate and an apparatus according to China patent No. 202010738072.1, wherein the magnetic conductive material, the magnetic conductive plate and the apparatus include magnetic conductive metal, the magnetic conductive material further includes inorganic porous materials, and the volume ratio of the magnetic conductive metal in the unit volume is 70% -95%. In the range, the magnetic conductive material has good magnetic conductive effect and noise reduction effect. It is readily appreciated that the addition of porous materials may reduce the hardness and abrasion resistance of the coating, making it more susceptible to scratching. There is a need for a noise-reducing magnetically permeable coating that does not rely on porous materials. Disclosure of Invention Aiming at the defects of the prior art, one of the purposes of the invention is to provide a noise-reducing wear-resistant magnetic conductive sintered coating, the other purpose of the invention is to provide a preparation method of the noise-reducing wear-resistant magnetic conductive sintered coating, and the other purpose of the invention is to provide an application of the noise-reducing wear-resistant magnetic conductive sintered coating in a pot. One of the purposes of the invention is achieved by the following technical scheme: The noise-reducing wear-resistant magnetic conductive sintering coating comprises the following raw materials in parts by weight: 40-50 parts of film forming colloid, 25-35 parts of magnetic conductive filler, 10-15 parts of carbide, 3-5 parts of polyester fiber, 1-2 parts of silane coupling agent, 1-3 parts of construction auxiliary agent and 1-2 parts of curing agent. Further, the film-forming colloid is high temperature resistant silicone resin (RSN-0805). A body of coating is provided, forming a film and bonding all fillers. High temperature resistance (> 300 ℃) after curing, good flexibility and strong adhesive force. Further, the magnetic conductive filler is carbonyl iron powder. And a core magnetically conductive component. Eddy currents and hysteresis losses are generated in the high-frequency alternating magnetic field, and heat is generated. The carbonyl iron powder has high purity, spherical shape, uniform granularity and better magnetic conductivity. Further, the carbide is powder obtained by high-temperature carbonization grinding of chaff and sieving with a 100-mesh sieve. 1. The porous structure is used for absorbing resin, enhancing interface combination and reducing coating weight and internal stress. 2. Infrared radiation, namely, the carbon material can emit far infrared rays after being heated, and the heating is assisted, so that the heat is more uniform. 3. Adjusting conductivity, and assisting in optimizing eddy current effect. Further, the construction auxiliary agent is obtained by mixing fumed silica, a dispersing agent, a defoaming agent and the like, so that heavy metal precipitation is prevented, and construction is facilitated. The filler is uniformly distributed. A dense coating is obtained. Further, the curing agent is potassium acetate. The high temperature resistant silicone resin can be self-cured after being heated, but the curing temperature can be reduced by adding a specific curing agent. The second purpose of the invention is realized by the following technical scheme: a preparation method of a noise-reducing wear-resistant magnetic conductive sintered coating comprises the following steps: step one, weighing raw materials with formula amount; Step two, dissolving a silane coupling agent in alcohol to obtain a solution, adding a magnetic conductive filler and carbide into the solution, stirring for 1-3 hours at 100-500r/min, and evaporating the alcohol for later use; Step three, adding the rest raw materials, stirring for 5-10min at 20-50r/min, and stirring for 10-20min at 200-500r/min to obtain the coating; and step four, coating the coating on a base surface, and sintering to obtain the noise-reducing wear-resistant magnetic conductive sintered coating. Further, in the fourth step, the sintering is performed by adopting a step heating method, wherein the temperature is 15-35 ℃ for 5-8 hours, 70-85 ℃ for 1-2 hours and 180-200 ℃ for 1-2 hours. Ensure that all positions are completely crosslinked, and improve the mechanical str