Production method of glass-ceramics heating plate
A technology of glass-ceramic and a manufacturing method, which is applied to electric heating devices, ohmic resistance heating, heating element materials, etc., can solve the problems of short service life of heating wires, low heating power, not strong enough safety, etc. Long service life and uniform heating effect
Inactive Publication Date: 2011-04-27
盛光润
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Problems solved by technology
Due to the short service life of the heating wire, slow heating, and open flames, there are potential safety hazards. Therefore, the use of heating elements with heating wires is restricted.
When the electric heating film is used as a heating element, the electric heating film is usually coated on the insulating material. Although this heating element has the advantages of uniform heating and fast heating speed, it also has the disadvantages of not being strong enough and safe, short in service life, and low in heating power.
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[0017] Referring to Figures 1 and 2, the glass-ceramic heating plate is formed by silk-screening a thick-film heating circuit 2 on one side of the glass-ceramic plate 1, then drying or air-drying, and finally sintering and solidifying at a high temperature of 700-900°C. The thick film heating circuit 2 is composed of conductive paste 3 and resistance paste 4 . For insulation, a layer of dielectric paste 5 is covered on the thick film heating circuit 2, and the dielectric paste 5 can be replaced by a layer of insulating board. The above-mentioned conductive paste is composed of solid phase components and organic binders, and the ratio (weight ratio) of the two is (70~90): (30~10); wherein the solid phase components are mainly composed of silver palladium composite powder and micro Composed of crystal glass powder, the ratio (weight ratio) of the two is (99.5-95): (0.5-5); the ratio (weight ratio) of palladium powder to silver powder in the silver-palladium composite powder is: ...
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The invention discloses a method for manufacturing a glass-ceramic heating board having one surface on which a thick film heating circuit consisting conductive paste and resistor paste is cured. The method for manufacturing the glass-ceramic heating board comprises the following sequential steps of: (1) screen printing the conductive paste on the glass-ceramic board and parching; (2) putting the glass-ceramic board into a baking tunnel to be baked for 10 to 20 minutes at 700 to 900 DEG C, to be cooled to the room temperature; (3) screen printing the resistor paste on the glass-ceramic board and parching; (4) putting the glass-ceramic board into a baking tunnel to be baked for 20-40 minutes at 700 to 900 DEG C, then to be cooled to the room temperature. Since adopting the thick film heating circuit as a heat source and curing the thick film heating circuit with the glass-ceramic board together by high temperature, the invention is characterized by fast temperature increasing speed and even heating, etc., and has the advantages of stability, safety and long service life, etc.
Description
technical field [0001] The invention relates to a method for manufacturing a heating plate, in particular to a method for manufacturing a glass-ceramic heating plate. Background technique [0002] At present, the heating elements commonly used in the heating plate include heating wire and electric heating film. Due to the short service life of the heating wire, slow heating, and the presence of an open flame, there are potential safety hazards. Therefore, the use of heating elements in which the heating element is a heating wire is restricted. When the electric heating film is used as a heating element, the electric heating film is usually coated on the insulating material. Although this heating element has the advantages of uniform heating and fast heating speed, it also has the disadvantages of not being strong enough and safe, short in service life, and low in heating power. . Contents of the invention [0003] The object of the present invention is to provide a metho...
Claims
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IPC IPC(8): H05B3/12H05B3/20
Inventor 盛光润
Owner 盛光润