Method for preparing single-sided epoxy glass fiber cloth phenolic paper laminated sheet
A technology of epoxy glass fiber and cloth phenolic paper, which is applied in the direction of glass/slag layered products, lamination, lamination devices, etc., can solve the problems of poor high temperature resistance and insulation, and achieve high temperature resistance and good insulation , the effect of high mechanical and dielectric properties
Inactive Publication Date: 2011-05-04
江阴市华尔胜绝缘材料有限公司
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Problems solved by technology
Its disadvantage is poor high temperature resistance and insulation
Method used
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[0012] see figure 1 , figure 1 It is a schematic diagram of the cross-sectional structure of the epoxy glass fiber cloth phenolic paper laminate prepared by the method of the present invention. Depend on figure 1 As can be seen, the preparation method of single-sided epoxy glass fiber cloth phenolic paper laminate of the present invention, described method comprises the following processing steps:
[0013] Step 1, impregnating 5-550 layers of insulating impregnated paper 1 with phenolic resin 2, drying and hot-pressing to form a laminated product;
[0014] Step 2: One side of the laminated product produced in step 1 is hot-pressed and laminated with epoxy glass fiber cloth 3 to make a single-sided epoxy glass fiber cloth phenolic paper laminate.
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The invention relates to a method for preparing a single-sided epoxy glass fiber cloth phenolic paper laminated sheet. The laminated sheet serves as an insulating structure component to be applied to low-voltage motor electric equipment with higher requirement on mechanical property requirement and also can be used in a transformer. The method comprises the following process steps of: 1, impregnating 5 to 550 layers of impregnated paper in phenolic resin, drying and thermally pressing into a laminated product; and 2, thermally pressing and compounding epoxy glass fiber cloth on one side of the laminated product prepared in the step 1 so as to prepare the single-sided epoxy glass fiber cloth phenolic paper laminated sheet. The single-sided epoxy glass fiber cloth phenolic paper laminated sheet has high mechanical and dielectric properties, high high-temperature resistance and insulating property, and high voltage resistance and processability.
Description
(1) Technical field [0001] The invention relates to a preparation method of a single-sided epoxy glass fiber cloth phenolic paper laminated board. The laminated board is suitable for use as insulating structural parts in low-voltage motor electrical equipment with high mechanical performance requirements, and can be used in transformers. It belongs to the technical field of insulating materials. (2) Background technology [0002] Before the present invention was made, the material that was suitable for making insulating structural parts in the low-voltage electrical equipment in the past was made of a single-layer insulating material with a certain thickness by wooden boards or bamboo sticks. Its disadvantages are poor high temperature resistance and poor insulation. (3) Contents of the invention [0003] The object of the present invention is to overcome above-mentioned deficiency, provide a kind of preparation method of single-sided epoxy glass fiber cloth phenolic pap...
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IPC IPC(8): B32B37/02B32B38/16B32B17/02B32B17/06B32B29/06H01B19/00H01B19/02H01B3/00
Inventor 赵亦初李玉虎
Owner 江阴市华尔胜绝缘材料有限公司