Composite electric heating board and preparing method thereof
A technology of electric heating plate and electric heating film, which is applied in the direction of heating method, electric heating system, lighting and heating equipment, etc., and can solve the problems of limited insulation and waterproof ability
Inactive Publication Date: 2016-09-07
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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Problems solved by technology
However, after the modified urea-formaldehyde resin is cured, the adhesive layer that can be formed on both sides of the electric heating layer is relatively thin, and the insulation and waterproof ability is limited.
Method used
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Embodiment 1
[0023] First, after cleaning the board surfaces of the upper substrate 1 and the lower substrate 5 . Then wood and bamboo composite electric heating plate of the present invention is according to as follows figure 1 Lamination in the sequence shown: place the lower middle epoxy resin prepreg 22 on the lower substrate 5, and ensure that the length and width of the prepreg exceed the substrate; then place the electrothermal film 4 pre-coated with the electrode 3 on the lower middle ring On the epoxy resin prepreg 22, ensure that the electric heating film 4 is located in the middle area of the base material, and does not protrude from the edge of the base material 1 and 5; and cover the upper middle layer epoxy resin prepreg 21 on the electric heating film 4, simultaneously Ensure that the edge is aligned with the lower and middle layer epoxy resin prepreg 22 ; finally, place the upper substrate 1 on the upper and middle epoxy resin prepreg 21 and align with the lower layer sub...
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Abstract
The invention relates to the technical field of composite electric heating boards, in particular to an insulating and water-proof composite electric heating board. The composite electric heating board comprises a lower layer of base material, a lower middle layer of epoxy resin prepregs, an electric heating film, two electrodes, an upper middle layer of epoxy resin prepregs and an upper layer of base material, which are sequentially arranged from bottom to top, wherein the two electrodes are positioned at the opposite two ends of the electric heating film; and the lower middle layer of epoxy resin prepregs, the electric heating film, the two electrodes and the upper middle layer of epoxy resin prepregs form an electric heating layer. The epoxy resin prepregs are simultaneously used as the base material, and the gluing material and insulating and water-proofing material of the electric heating film and can simultaneously realize gluing, insulating and waterproofing. The manufacture efficiency is high, and the production cost is also reduced.
Description
technical field [0001] The invention relates to the technical field of composite electric heating plates, in particular to an insulating and waterproof composite electric heating plate. Background technique [0002] Wood and bamboo composite electric heating products, such as electric heating wooden floor, realize the integration of floor heating and flooring. The electric heating layer is combined on the inner and near surface of the floor, which shortens the heat transfer distance and improves the thermal efficiency. The composite manufacturing method of the wood-bamboo composite electric heating product mainly includes lamination cold pressing or hot pressing and internal groove embedding. After many years of technical updates, domestic enterprises have gradually formed the electrothermal layer composite technology based on laminated glue pressing. Melamine modified urea-formaldehyde resin glue is one of the commonly used adhesives. In addition, the embedded manufacturin...
Claims
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IPC IPC(8): F24D13/02F24D19/10
CPCF24D13/024F24D19/10
Inventor 梁善庆傅峰袁全平
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY