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SOLVING METHOD FOR BLUSHING PHENOMENON OF SYNTHETIC RESIN MADE WINDOW FRAME MEMBER AND SYNTHETIC RESIN MADE WINDOW FRAME FREE FROM BLUSHING PHENOMENON
SOLVING METHOD FOR BLUSHING PHENOMENON OF SYNTHETIC RESIN MADE WINDOW FRAME MEMBER AND SYNTHETIC RESIN MADE WINDOW FRAME FREE FROM BLUSHING PHENOMENON
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机译:合成树脂制窗框构件发泡现象的解决方法及无发泡现象的窗框合成树脂构件
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摘要
PROBLEM TO BE SOLVED: To provide an extremely simple method to remove a welding bead generated caused by heat welding of the end of a synthetic resin window frame member 10 and solve a blushing phenomenon brought in the bead removal position. SOLUTION: Both ends of a synthetic resin window frame member 10 are heated, butted against each other and heat-bonded together. The heat-bonded bead 13 built up in the heat-bonded joint is removed, and then, the bead removal part 14 is heated by an optional heating means at a glass transition temperature 30 deg.C of the synthetic resin as a raw material to solve the blushing phenomenon brought in the bead removal part 14.
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