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Non-stick pan and preparation method thereof

A non-stick pan and buffer layer technology, applied in metal material coating process, superimposed layer plating, coating and other directions, can solve problems such as health hazards, polyvinyl alcohol is not resistant to high temperature, prone to cracking, etc.

Active Publication Date: 2016-08-03
ZHEJIANG CHANGYUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention patent with the patent publication number CN103724011A provides a zirconium-aluminum composite ceramic non-stick pan and its preparation process. Its main components are zirconia powder, alumina powder, yttrium oxide powder and polyvinyl alcohol. The ceramic non-stick pan It has good toughness and corrosion resistance, but it uses polyvinyl alcohol as a binder. Polyvinyl alcohol is not resistant to high temperature and will melt at 200°C, which is potentially harmful to human health.
[0004] At the same time, for the traditional ceramic pots used for soup, it is prone to cracking and other problems under high temperature conditions.
Therefore, for current cookware, its room for further improvement is also very large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] A kind of preparation method of non-stick pan, it comprises steps:

[0030] S100 coating the buffer layer on the surface of the pot base;

[0031] S200 sequentially washing the surface of the buffer layer with alkali, acid and water; and

[0032] S300 coating a composite cermet layer on the buffer layer through a laser cladding process.

[0033] Wherein, the step S200 includes the step of: first using 5wt% Na on the surface of the buffer layer 2 CO 3 It was cleaned for 5-15 minutes with the assistance of ultrasound, and then washed with 2 wt % dilute acetic acid solution for 5-15 minutes with the assistance of ultrasound, and then washed with deionized water and dried.

[0034] Wherein, alkali washing can remove oil stains and other dirt on the surface of the buffer layer, pickling can remove the oxide layer on the surface of the buffer layer while activating the surface, and washing with water can remove the residual liquid on the surface of the buffer layer.

[00...

Embodiment 1

[0053] First, coat the inner surface of the pot base with a 15-20 μm TiAl layer; 2 CO 3 and 2wt% dilute acetic acid solution were cleaned for 15 minutes under the condition of ultrasonic assistance, then washed with deionized water and dried; finally, a composite cermet layer was coated on the outer surface of the pot base by laser cladding process, the thickness of 50-60 μm.

[0054] Wherein the preparation process of TiAl is as follows: after Ti powder and Al powder are proportioned according to weight ratio 3: 1, add deionized water wherein, make the volume of deionized water and powder raw material be 50% of ball mill tank, use planetary ball mill, The rotational speed was 400rpm, and the ball milling was performed for 20 hours. After the ball milling, the mixed powder was dried at 120°C for 2 hours, and finally the sample was calcined at 1200°C for 4 hours in a vacuum sintering furnace.

[0055] The preparation process of the composite cermet layer: Zr powder, W powder,...

Embodiment 2

[0058] First, coat the inner surface of the pot base with a 15-20 μm TiAl layer; 2 CO 3 and 2wt% dilute acetic acid solution were cleaned for 15 minutes under the condition of ultrasonic assistance, then washed with deionized water and dried; finally, a composite cermet layer was coated on the outer surface of the pot base by laser cladding process, the thickness of 50-60 μm.

[0059] Wherein the preparation process of TiAl is the same as that in Example 1.

[0060] The preparation process of the composite cermet layer: Zr powder, W powder, Mo powder, Ta powder and graphene are mixed according to the weight ratio of 7:1:0.8:0.5:30, and a certain amount of deionized water is added thereto, Make the volume of deionized water and powder raw materials 50% of the ball mill tank, use a planetary ball mill with a rotation speed of 500 rpm, mill for 3 hours, and dry the mixed powder at 120° C. for 2 hours after ball milling. Mix the obtained mixed powder with silica sol to form a p...

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Abstract

The invention discloses a non-stick pan and a preparation method thereof. The non-stick pan comprises a pan base body, a buffering layer and a composite metal ceramic layer; and the buffering layer is arranged between the pan base body and the composite metal ceramic layer, wherein the buffering layer is a titanium aluminide layer, and the composite metal ceramic layer comprises zirconium carbide, tungsten carbide, molybdenum carbide, tantalum carbide and silicon carbide. Thus, the non-stick pan is safe and healthy to use, and the abrasion resistance and the heat resistance of the composite metal ceramic layer and the performance that the composite metal ceramic layer is not prone to falling are improved.

Description

technical field [0001] The invention relates to the field of cooking utensils, in particular to a composite non-stick pan and a preparation method thereof. Background technique [0002] The traditional aluminum alloy pan is prone to food sticking during cooking, which not only increases the difficulty of cleaning, but also produces burnt and mushy food that is harmful to human health. The existing non-stick pan is coated with a layer of polytetrafluoroethylene on the surface of the aluminum alloy pan. Although it satisfies the phenomenon that the pan does not stick, the coating strength is not high, and it is prone to peeling and damage. With the continuous deepening of scientific research, people have raised various worries and concerns about whether long-term use of Teflon-coated non-stick pans is harmful to the human body, and the controversy has not stopped. [0003] The invention patent with the patent publication number CN103724011A provides a zirconium-aluminum compo...

Claims

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Application Information

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IPC IPC(8): C23C24/10B22F7/08
CPCB22F7/08C23C24/10C23C24/103C23C28/042
Inventor 魏亮
Owner ZHEJIANG CHANGYUAN TECH CO LTD
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