阅读说明：本技术 一种不粘锅的制备方法 (Preparation method of non-stick pan ) 是由 常东强 于 2019-10-30 设计创作，主要内容包括：本发明一种不粘锅的制备方法,不粘锅锅体以及在锅体的内表面以及外表面均热喷涂的铝金属层,内表面的铝金属层上喷涂有石墨层,石墨层上方涂覆有陶瓷涂层；具体按照如下步骤实施：步骤1,将锅体进行喷砂处理,并进行清洗；步骤2,对步骤1清洗过的锅体的内表面以及外表面均热喷涂一层铝金属层；步骤3,经步骤2喷涂铝金属层的锅体内表面涂覆石墨层；步骤4,涂覆陶瓷涂层喷,然后进行烧结；步骤6,对步骤5烧结过后的锅体进行抛光,制得不粘锅。本发明的一种不粘锅的制备方法,解决了现有技术中存在的不粘锅涂层耐磨性差以及易脱落的问题。(The invention relates to a preparation method of a non-stick pan, which comprises a non-stick pan body and aluminum metal layers uniformly sprayed on the inner surface and the outer surface of the non-stick pan body, wherein a graphite layer is sprayed on the aluminum metal layer on the inner surface, and a ceramic coating is coated above the graphite layer; the method is implemented according to the following steps: step 1, carrying out sand blasting treatment on a pot body, and cleaning; step 2, uniformly spraying a layer of aluminum metal layer on the inner surface and the outer surface of the pot body cleaned in the step 1; step 3, coating a graphite layer on the inner surface of the pot body sprayed with the aluminum metal layer in the step 2; step 4, spraying a ceramic coating, and then sintering; and 6, polishing the pot body sintered in the step 5 to obtain the non-stick pot. The preparation method of the non-stick pan solves the problems of poor wear resistance and easy falling of a non-stick pan coating in the prior art.)

1. The preparation method of the non-stick pan is characterized by comprising the steps of uniformly spraying aluminum metal layers on the inner surface and the outer surface of the non-stick pan body, wherein a graphite layer is sprayed on the aluminum metal layer on the inner surface, and a ceramic coating is coated above the graphite layer;

the ceramic coating is prepared from the following raw materials in parts by weight: 60-70 parts of zirconium oxide powder, 10-20 parts of titanium boride, 4-30 parts of titanium carbide, 30-40 parts of alumina powder, 1-5 parts of yttrium oxide powder and 0.05-0.1 part of adhesive;

the method is implemented according to the following steps:

step 1, carrying out sand blasting treatment on a pot body, then carrying out oil removal treatment, and cleaning;

step 2, uniformly spraying a layer of aluminum metal layer on the inner surface and the outer surface of the pot body cleaned in the step 1;

step 3, preparing graphite powder into slurry, coating the slurry on the inner surface of the pot body coated with the aluminum metal layer in the step 2, and then air-drying under natural conditions or drying by using a microwave oven;

step 4, weighing the materials according to the following mixture ratio: 60-70 parts of zirconium oxide powder, 10-20 parts of titanium boride, 4-30 parts of titanium carbide, 30-40 parts of alumina powder, 1-5 parts of yttrium oxide powder and 0.05-0.1 part of adhesive, and then adding a certain amount of water to prepare a mixed material;

step 5, spraying the mixed material prepared in the step 4 into the pot body sprayed with the graphite layer in the step 3, and then sintering;

and 6, polishing the pot body sintered in the step 5 to obtain the non-stick pot.

2. The method for preparing the non-stick pan according to claim 1, wherein the sand blasting in the step 1 is specifically: selecting 80-mesh quartz sand as an abrasive, using 0.5-0.6 MPa compressed air as power, spraying the abrasive to the surface of a pot at a high speed with a spraying distance of 150mm and a spraying angle of 30-75 degrees, and completely removing impurities on the surface of the pot and coarsening the surface.

3. The preparation method of the non-stick pan as claimed in claim 1, wherein the oil removing treatment comprises placing the pan body in a normal temperature oil removing agent, heating to 95 ℃, keeping for 6min, and washing and drying.

4. The method for preparing a non-stick pan according to claim 1, wherein the water is added in the step 4 in an amount of 7 to 10 times the amount of the binder.

5. The method for preparing a non-stick pan according to claim 1, wherein the sintering process of step 5 is: heating to 300 ℃ at a speed of 50 ℃/h, heating to 1200 ℃ at a speed of 70-80 ℃/h, preserving heat for 1-2 hours at 1200 ℃, heating to 1450 ℃ at a speed of 80-90 ℃/h, preserving heat for 3-4 hours at 1450 ℃, naturally cooling to 300 ℃, and taking out of the kiln.

6. The method for preparing a non-stick pan as claimed in claim 1, wherein the polishing in step 6 is performed by using a diamond tool.

Technical Field

The invention belongs to the technical field of non-stick pans, and relates to a preparation method of a non-stick pan.

Background

In the current life, metal pots such as iron pots, aluminum pots and the like in daily household pots occupy the main market, and the aluminum pots are characterized by excellent heat distribution, good heat transfer and lighter pot bodies. But the aluminum pot is not easy to clean and has large oil smoke when using much oil. Stainless steel pans are characterized by poor heat distribution and easy generation of hot spots to burn food. The stainless steel pot is heavy, difficult to clean and easy to smoke when using much oil. The iron enamel pot has poor heat distribution and is easy to be burnt at the bottom. Such pots are not easy to clean and the surface is easy to break, resulting in rusting of the iron base material. The iron pan has poor heat distribution, is easy to generate heat points to burn food, is heavy, is not easy to clean, is easy to rust, and has large oil smoke when using much oil. While the non-stick pan overcomes all of the disadvantages of the conventional pans above.

The surface of the pot body of the existing non-stick pan is not sprayed with a layer of non-stick coating which takes polytetrafluoroethylene as a main raw material, the non-stick coating is tightly combined with a base material by high-temperature sintering at 420 ℃, and food is separated from the pot body by utilizing the strong chemical inertia of the non-stick coating, so that the non-stick function is achieved, but the wear resistance of the non-stick coating is poor, and the coating is easy to wear and fall off.

Disclosure of Invention

The invention aims to provide a preparation method of a non-stick pan, which solves the problems of poor wear resistance and easy falling of a non-stick pan coating in the prior art.

The technical scheme adopted by the invention is that the preparation method of the non-stick pan comprises a non-stick pan body and aluminum metal layers which are uniformly sprayed on the inner surface and the outer surface of the pan body, wherein a graphite layer is sprayed on the aluminum metal layer on the inner surface, and a ceramic coating is coated on the graphite layer;

the ceramic coating is prepared from the following raw materials in parts by weight: 60-70 parts of zirconium oxide powder, 10-20 parts of titanium boride, 4-30 parts of titanium carbide, 30-40 parts of alumina powder, 1-5 parts of yttrium oxide powder and 0.05-0.1 part of adhesive;

the method is implemented according to the following steps:

step 1, carrying out sand blasting treatment on a pot body, then carrying out oil removal treatment, and cleaning;

step 2, uniformly spraying a layer of aluminum metal layer on the inner surface and the outer surface of the pot body cleaned in the step 1;

step 3, preparing graphite powder into slurry, coating the slurry on the inner surface of the pot body coated with the aluminum metal layer in the step 2, and then air-drying under natural conditions or drying by using a microwave oven;

step 4, weighing the materials according to the following mixture ratio: 60-70 parts of zirconium oxide powder, 10-20 parts of titanium boride, 4-30 parts of titanium carbide, 30-40 parts of alumina powder, 1-5 parts of yttrium oxide powder and 0.05-0.1 part of adhesive, and then adding a certain amount of water to prepare a mixed material;

step 5, spraying the mixed material prepared in the step 4 into the pot body sprayed with the graphite layer in the step 3, and then sintering;

and 6, polishing the pot body sintered in the step 5 to obtain the non-stick pot.

The present invention is also characterized in that,

the sand blasting treatment in the step 1 comprises the following specific steps: selecting 80-mesh quartz sand as an abrasive, using 0.5-0.6 MPa compressed air as power, spraying the abrasive to the surface of a pot at a high speed with a spraying distance of 150mm and a spraying angle of 30-75 degrees, and completely removing impurities on the surface of the pot and coarsening the surface.

The oil removing treatment comprises placing the pan body in oil removing agent at normal temperature, heating to 95 deg.C, maintaining for 6min, washing, and oven drying.

And 4, adding water with the amount being 7-10 times of the adhesive in parts by weight.

And step 5, the sintering process comprises the following steps: heating to 300 ℃ at a speed of 50 ℃/h, heating to 1200 ℃ at a speed of 70-80 ℃/h, preserving heat for 1-2 hours at 1200 ℃, heating to 1450 ℃ at a speed of 80-90 ℃/h, preserving heat for 3-4 hours at 1450 ℃, naturally cooling to 300 ℃, and taking out of the kiln.

And 6, polishing by adopting a diamond special tool.

The invention has the beneficial effects that:

according to the invention, the aluminum metal layer is uniformly sprayed on the inner surface and the outer surface of the pot body, and the aluminum metal layer has good thermal conductivity, so that the problem that the local heating temperature of the pot body is too high can be avoided, meanwhile, the food in the iron pot can be uniformly heated, and the taste of the food is more delicious. Secondly, spraying graphite and ceramic coating on the aluminum metal layer of the inner surface and sintering the pot body.

Because the aluminum metal layer after the aluminum is thermally sprayed has certain roughness, the non-stick coating is sprayed on the surface with the roughness, the combination between the non-stick coating and the aluminum metal layer is firmer, and the wear resistance of the pan body is improved.

Detailed Description

The present invention will be described in detail with reference to the following embodiments.

A preparation method of a non-stick pan comprises the steps of uniformly spraying an aluminum metal layer on the inner surface and the outer surface of a non-stick pan body, wherein a graphite layer is sprayed on the aluminum metal layer on the inner surface, and a ceramic coating is coated on the graphite layer;

the ceramic coating is prepared from the following raw materials in parts by weight: 60-70 parts of zirconium oxide powder, 10-20 parts of titanium boride, 4-30 parts of titanium carbide, 30-40 parts of alumina powder, 1-5 parts of yttrium oxide powder and 0.05-0.1 part of adhesive;

the method is implemented according to the following steps:

step 1, selecting 80-mesh quartz sand as an abrasive material for a pot body, using 0.5-0.6 MPa compressed air as power, spraying 150mm of spray distance and 30-75 degrees of spray angle, spraying the abrasive material on the surface of the pot body at a high speed, thoroughly removing impurities on the surface of the pot body, roughening the surface of the pot body, then placing the pot body in a normal-temperature degreasing agent, heating to 95 ℃, keeping for 6min, and washing and drying;

step 2, uniformly spraying a layer of aluminum metal layer on the inner surface and the outer surface of the pot body cleaned in the step 1;

step 3, preparing graphite powder into slurry, coating the slurry on the inner surface of the pot body coated with the aluminum metal layer in the step 2, and then air-drying under natural conditions or drying by using a microwave oven;

step 4, weighing the materials according to the following mixture ratio: 60-70 parts of zirconium oxide powder, 10-20 parts of titanium boride, 4-30 parts of titanium carbide, 30-40 parts of alumina powder, 1-5 parts of yttrium oxide powder and 0.05-0.1 part of adhesive, and adding a certain amount of water to prepare a mixed material, wherein the water amount is 7-10 times of the adhesive;

step 5, spraying the mixed material prepared in the step 4 into a pot body sprayed with the graphite layer in the step 3, then sintering, heating to 300 ℃ at a speed of 50 ℃/h, heating to 1200 ℃ at a speed of 70-80 ℃/h, keeping the temperature of 1200 ℃ for 1-2 hours, heating to 1450 ℃ at a speed of 80-90 ℃/h, keeping the temperature of 1450 ℃ for 3-4 hours, then naturally cooling to 300 ℃, and taking out of the kiln;

and 6, polishing the pot body sintered in the step 5 by adopting a special diamond tool to obtain the non-stick pot.