Glass fiber screen cloth immersing glue solution for grinding wheel reinforcement and initial rinsing method

A technology of glass fiber mesh and glass fiber, which is applied in the field of glass fiber mesh impregnation solution and its impregnation for grinding wheel reinforcement, which can solve the problems of workshop production environment pollution, complex preparation process, and low production efficiency, and achieve an improvement in the production environment , the preparation process is simple, the effect of improving production efficiency

Inactive Publication Date: 2008-03-12
北京玻钢院复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of dipping solution has many ingredients, the preparation process is complicated, and the production efficiency is low. Taking 10 mesh 120g / m2 mesh fabric as an example, the average output is 2000m2 / days, and there are many volatiles, the production environment of the workshop is seriously polluted

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0034] First put the prepared dipping solution into the dipping tank; take 5 mesh 580g / m 2 The glass fiber mesh cloth is sent to the entrance of the dipping machine, buffered by the feeding roller and the cloth storage roller, and then sent into the dipping tank. The mesh cloth is soaked in the dipping liquid and then leaves the dipping tank. The glue on the surface of the mesh is squeezed out by hydraulic pressure, and then the surface of the mesh is scraped to remove the glue accumulated on the surface of the mesh to prevent the surface of the mesh from being glued; then it is fed into the lower layer of the oven At the entrance of the oven, the temperature is 100°C when it passes through the lower layer of the oven. From the lower layer to the middle layer, the temperature is 120°C; then through the upper layer, the temperature is 130°C; then the glass fiber mesh is pulled out by the external traction device At the outlet of the oven, the pulling speed of the pulling device...

example 2

[0037] Take 10 mesh 120g / m 2 The prepreg method of fiberglass net is the same as example 1, and its difference is: the component that dipping liquid preparation is used is the mixing ratio of liquid phenolic resin and technical alcohol and is 1: 0.18; Measure dipping liquid specific gravity with hydrometer and be 1.052;

[0038] Oven temperature in the dipping machine used: lower layer / middle layer / upper layer: 90°C / 110°C / 120°C respectively; traction speed: 600r / min.

example 3

[0040] Take 10 mesh 120g / m 2 The prepreg method of fiberglass web is the same as example 1, and its difference is that the mixing ratio of liquid phenolic resin and technical alcohol is 1: 0.15; Measure the specific gravity of this dipping solution with hydrometer to be 1.044;

[0041] Oven temperature in the dipping machine used: lower layer / middle layer / upper layer: 80°C / 100°C / 100°C; traction speed: 750r / min.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The present invention discloses a glass fiber mesh fabric dip solution for reinforcement of grinding wheel and the dipping method, which belongs to the field of composite materials; wherein the dip solution is formed by mixing the industrial alcohol with the liquid phenolic resin, the solid content of which is larger than or equal to 65 percent. The mixing ratio between the liquid phenolic resin against the industrial alcohol ranges from 1:0.15 to 0.20. The presoaking method is realized by utilizing the conventional dipping machine and the specific operating steps are that the glass fiber mesh fabrics are delivered into a dipping groove through a fabric transportation drum and a fabric storage roller so as to be dipped by the dip solution arranged in the dipping groove; then the dipped glass fiber mesh fabrics go into the rubber pressing by a dandy roll and then are fed into an oven to be pre-cured; the dipped glass fiber mesh fabrics are pulled out by a traction device and are trimmed and rolled up after passing through a buffering fabric storage roller and a deviation-correcting device. Two kinds of raw materials are selected as the raw materials of the present invention, thus simplifying the confection process of the present invention; the hydrometer is used to measure and adjust the proportion of the dip solution, thus resulting in that the gum chicle content is effectively controlled and the quality of products is stable; the volatile quantity is lowered from originally 5 percent to 1.5 percent. The glass fiber mesh fabric dip solution for reinforcement of grinding wheel causes few contaminations to the environment, has low cost and is easy to be popularized and put into use.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a glass fiber mesh cloth dipping liquid and a dipping method for a grinding wheel reinforcement. Background technique [0002] In the prior art, after the weaving is completed, the glass fiber mesh cloth for reinforcing the grinding wheel cannot be directly applied to the grinding wheel, and must be dipped in glue before it can be put into use. The traditional dipping solution is made of solid phenolic resin, liquid phenolic resin, and then add an appropriate amount of epoxy resin and auxiliary components, such as plasticizers, colorants, etc., and completely dissolve in a solvent. The solvent can be ethanol, methanol Wait. This kind of dipping solution has many components, the preparation process is complicated, and the production efficiency is low. With 10 mesh 120g / m 2 Take mesh fabric as an example, the average output is 2000m 2 / day or so, and there are many volatiles,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/34
Inventor 王安营郭丹凤赵艳平
Owner 北京玻钢院复合材料有限公司
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