Glass fiber screen cloth immersing glue solution for grinding wheel reinforcement and initial rinsing method
A technology of glass fiber mesh and dipping solution, which is applied in the field of composite materials to achieve the effects of improved production efficiency, easy promotion and application, good flatness and mold coverage
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example 1
[0036] First put the prepared dipping solution into the dipping tank; take 5 mesh 580g / m 2The 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
[0039] 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;
[0040] 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
[0042] 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;
[0043] Oven temperature in the dipping machine used: lower layer / middle layer / upper layer: 80°C / 100°C / 100°C; traction speed: 750r / min.
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