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AIR POCKET REMOVING DEVICE AND A METHOD IN FORMING GFRP(GLASS FIBER REINFORCED PLASTIC) PARTS FOR SECURING CORROSION RESISTANCE AGAINST ACID OR ALKALI, MECHANICAL STRENGTH, AND DURABILITY BY APPLYING THE BUBBLE REMOVING DEVICE TO AN ASYMMETRIC PORTION OF A GFRP IMPELLER
AIR POCKET REMOVING DEVICE AND A METHOD IN FORMING GFRP(GLASS FIBER REINFORCED PLASTIC) PARTS FOR SECURING CORROSION RESISTANCE AGAINST ACID OR ALKALI, MECHANICAL STRENGTH, AND DURABILITY BY APPLYING THE BUBBLE REMOVING DEVICE TO AN ASYMMETRIC PORTION OF A GFRP IMPELLER
PURPOSE: An air pocket removing device and a method in forming GFRP parts are provided to prevent corrosion caused by acid or alkali by reducing the content rate of air pocket in the GFRP parts, to improve strength, heat resistance, and shock resistance, and to increase quality and durability by decreasing thermal expansion and shrinkage. CONSTITUTION: A bubble removing device in forming GFRP parts is composed of a base plate(100) through which plural gas exhaust holes are bored and a bubble removing pipe(200) having a hollow unit, a bubble removing hole formed on the lateral side to communicate with the hollow unit. The hollow unit is extended to communicate with the gas exhaust hole of the base plate. A handle(300) is installed on the rear side of the base plate. Lengths of the bubble removing pipes are different from each other along the surface figure of the mold.
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