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Super multi-coating (SMC) super-thick mould pressed product and preparation method thereof

A technology of molded products and molds, which is applied in the field of SMC ultra-thick molded products and its preparation, can solve the problems of SMC products such as weight, and achieve the effect of reducing weight

Inactive Publication Date: 2014-10-01
ZHEJIANG SANSE MOLD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The thickness of traditional SMC products is generally 2.5-3mm. Under special conditions of use, the product itself needs a thicker thickness to meet conditions such as strength or assembly. For this situation, the related technology solves it by directly thickening the SMC sheet. The technical problem brought about is: the thickened SMC sheet will cause the SMC product to be too heavy

Method used

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  • Super multi-coating (SMC) super-thick mould pressed product and preparation method thereof
  • Super multi-coating (SMC) super-thick mould pressed product and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A SMC ultra-thick molded product, such as figure 1 As shown, it includes an SMC sheet 101 , an inner core 102 and an SMC sheet 101 stacked in sequence, and the inner core 102 is a lightweight material with a density lower than that of the SMC sheet 101 .

[0023] Among them, the inner core 102 is preferably made of Hexiang board. The Hexiang board is mainly made of rice and wheat and other crop straws, does not contain formaldehyde, has good durability, load-bearing and deformation resistance, and also has good sound insulation and flame retardancy. , At the same time, the thickness of the Hexiang board can be adjusted according to the needs of the product.

[0024] The SMC ultra-thick molded product of above-mentioned embodiment uses the lightweight material with density less than SMC sheet 101 as inner core 102, and makes the similar sandwich shape with the mode of SMC sheet 101, inner core 102 and SMC sheet 101 superimposed successively , which not only reduces the ...

Embodiment 2

[0027] An SMC ultra-thick molded product comprises SMC sheets, Hexiang boards and SMC sheets stacked in sequence.

Embodiment 3

[0029] A kind of preparation method of SMC super thick molded product, can be used for preparing above-mentioned SMC super thick molded product, as figure 2 shown, including the following steps:

[0030] Step 201: Adjust the temperature of the mold to 130-150° C. to complete the temperature adjustment.

[0031] Step 202: Put the SMC sheet and the inner core into the mold according to the order in which the SMC sheet, the inner core and the SMC sheet are stacked successively, and complete feeding.

[0032] Step 203: maintaining pressure at 130-150°C.

[0033] Step 204: Demoulding after holding the pressure to obtain a product.

[0034] Each step in the above method can be further optimized to achieve more technical effects, such as:

[0035] In the temperature adjustment of step 201, different temperatures are set for the upper mold and the lower mold to distinguish the front and back sides of the SMC product. For example, the temperature of the upper mold of the mold is ad...

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Abstract

The invention relates to the field of a super multi-coating (SMC) product, and in particular relates to an SMC super-thick mould pressed product and a preparation method of the product. The SMC super-thick mould pressed product comprises an SMC sheet, an inner core and another SMC sheet which are sequentially overlapped, wherein the inner core is made of light material, and the density of the light material is less than those of the SMC sheets. According to the SMC super-thick mould pressed product, the light material which has the density less than those of the SMC sheets is taken as the inner core, and a shape similar to a sandwich is formed by sequentially overlapping the SMC sheet, the inner core and the SMC sheet, so that the weight of the SMC super-thick mould pressed product is lightened, and the deserved advantages of the SMC product are guaranteed.

Description

technical field [0001] The invention relates to the field of SMC products, in particular to SMC ultra-thick molded products and a preparation method thereof. Background technique [0002] SMC (Sheet Molding Compound) is a sheet composed of unsaturated polyester resin, low shrinkage additives, fillers, curing agents, thickeners, deinking agents and glass fibers. It has low shrinkage and high strength. Its mechanical properties are comparable to some metal materials, so it is widely used in vehicle shells, pressure pads, bathtubs and purification tanks in building facilities, switch shells and partitions in the electronics industry. Wait. [0003] The thickness of traditional SMC products is generally 2.5-3mm. Under special conditions of use, the product itself needs a thicker thickness to meet the conditions of strength or assembly. For this situation, the related technology solves it by directly thickening the SMC sheet. The technical problem brought is: the thickened SMC ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/02B32B9/04B32B33/00B32B37/10
Inventor 李加春
Owner ZHEJIANG SANSE MOLD TECH
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