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Production method of glass fiber mesh cover

A technology of glass fiber mesh and production method, which is applied in the field of glass fiber, can solve the problems of decreased bonding strength, ecological environment hazards, sand discs, sand disc flying pieces, etc., and achieves increased interlayer adhesion and uniform internal structure , to reduce the effect of delamination

Inactive Publication Date: 2020-06-26
绵阳中研磨具有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to dispose of glass fiber cloth scraps impregnated with synthetic resins. At present, landfill is generally used for disposal, which brings great harm to the ecological environment and is not conducive to environmental protection.
Some manufacturers of glass fiber mesh covers crush and grind these leftovers into powder and then add them to resin for use. The proportion of available leftovers is low, but the process of processing powder is complicated, energy consumption is high, and there is no economic benefit
[0003] At present, in the scrap processing technology method, the production method of the glass fiber mesh cover is carried out by using the glass fiber mesh scrap, glass fiber, and glass fiber scrap, but the strength of the produced glass fiber mesh cover is unstable, and the glue is on the glass fiber mesh cover. Poor permeability leads to a decrease in bonding strength, which can easily lead to sand discs and sand disc flying pieces, and the safety factor is low

Method used

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  • Production method of glass fiber mesh cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A method for producing a glass fiber mesh cover, comprising the steps of:

[0048] Step 1, impregnating the glass fiber cloth in the phenolic resin, then pre-baking, and set aside;

[0049] Step 2, using a curing device to cure the leftover material in the production process of the glass fiber mesh cover to obtain a cured material;

[0050] Step 3. For the solidified material obtained in step 2, use a cutting device to cut the leftover material into irregular small pieces of 1cm to 10cm, and then use a crushing device to crush the cut irregular small pieces to obtain Crushed leftover material, which includes resin-wrapped fiber particles of 0.15 mm to 1.5 mm, chopped fibers of 0.3 mm to 10 mm, and synthetic resin particles of ≤0.5 mm;

[0051] Step 4: Compounding the crushed leftover material obtained in step 3 with phenolic resin using compounding equipment to form a uniform mixed solution. The composition and weight ratio of the mixed solution are as follows: the cru...

Embodiment 2

[0058] A method for producing a glass fiber mesh cover, comprising the steps of:

[0059] Step 1, impregnating the glass fiber cloth in the phenolic resin, then pre-baking, and set aside;

[0060] Step 2, use the dust removal equipment to collect the leftovers produced when the glass fiber mesh cover in Example 1 is rounded, then use the compounding equipment to compound the leftovers and phenolic resin to a uniform mixed solution, the mixed solution The components and weight ratio are, the leftover material is 60%, and the phenolic resin is 40%;

[0061] Step 3, the mixed solution that step 2 is made, utilize scraping equipment to scrape and coat on the glass fiber cloth that is processed through step 1, form coating on glass fiber cloth, the last 0.1mm of described coating thickness;

[0062] Step 4. Use the baking equipment to pre-bake the glass fiber cloth treated in step 3. According to the specifications of the glass fiber mesh cover and the requirements for the strengt...

Embodiment 3

[0067] A method for producing a glass fiber mesh cover, comprising the steps of:

[0068] Step 1, impregnating the glass fiber cloth in the phenolic resin, then pre-baking, and set aside;

[0069] Step 2, collecting the leftover material produced in the step seven of the glass fiber net cover in embodiment 1 or the step five in the embodiment 2, utilizing the curing equipment to solidify the leftover material to obtain a cured material;

[0070] Step 3. For the solidified material obtained in step 2, use a cutting device to cut the leftover material into irregular small pieces of 1 cm to 7 cm, and then use a crushing device to crush the cut irregular small pieces to obtain The leftover crushed product, the leftover crushed product includes resin-wrapped fiber particles of 0.15 mm to 1.5 mm, chopped fibers of 0.3 to 10 mm, and synthetic resin particles of ≤0.5 mm;

[0071] Step 4: Compounding the crushed leftover material obtained in step 3 with phenolic resin using compoundin...

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Abstract

The invention provides a production method of a glass fiber mesh cover. Glass fiber cloth which is impregnated in synthetic resin and pre-baked is coated with a mixed solution to form a coating, the mixed solution is prepared from synthetic resin and crushed leftover materials after solidifying and crushing treatment, and the leftover materials are leftover materials recycled and produced during the production process of the glass fiber mesh cover. The glass fiber mesh cover produced by the production method has higher strength and does not affect the impregnation with an adhesive; the glass fiber mesh cover is economic, the leftover materials can be fully used in manufacturing process, and compared with a glass fiber cloth layer used in a normal glass fiber mesh cover, the usage amount ofthe glass fiber cloth can be reduced by 1-3 layers according to different specifications; and the production cost of the glass fiber mesh cover is reduced, and the utilization rate of the glass fibercloth and synthetic resin is improved.

Description

technical field [0001] The invention belongs to the technical field of glass fiber, and in particular relates to a production method of a glass fiber mesh cover. Background technique [0002] The glass fiber mesh cover has strong plasticity and can be made into different shapes and thicknesses according to needs. It is flexible and convenient to use, and is widely used as the back cover of sand trays and sand trays. The current glass fiber net cover production method - glass fiber cloth impregnated with synthetic resin, pre-baked, laminated, cut, shaped, cured, polished and made. The production method determines that nearly 30% of the leftovers are produced. The leftovers have been impregnated with synthetic resin. After curing, the synthetic resin is a high molecular polymer with a large molecular weight and is difficult to degrade, which has a great impact on the ecological environment. It is relatively difficult to dispose of glass fiber cloth scraps impregnated with syn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/54B29B17/00
CPCB29B17/0005B29C70/34B29C70/54B29C70/545Y02W30/62
Inventor 谢果刘琪叶应松
Owner 绵阳中研磨具有限责任公司
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