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JOINT STRENGTHENED GLASS PIPE, STRENGTHENING METHOD FOR JOINT OF GLASS PIPE AND CONNECTING SYSTEM FOR GLASS PIPE
JOINT STRENGTHENED GLASS PIPE, STRENGTHENING METHOD FOR JOINT OF GLASS PIPE AND CONNECTING SYSTEM FOR GLASS PIPE
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机译:接头加强玻璃管,玻璃管接头的加强方法和玻璃管连接系统
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摘要
PURPOSE:To obtain a joint-strengthened glass pipe capable of strengthening a joint part even in the site of piping work at a low cost by providing a thermally-spraying part which can be thermally sprayed and built up to the whole circumference of the outer or inner surface of the joint part of the glass pipe. CONSTITUTION:The joint part 2 of a male type glass pipe 1 wherein antistress thereof is strengthened is heated close to m.p. When heating is completed, fine- powdery resin material such as 'Teflon(R)', nylon and PE is thermally-sprayed on the whole surface of the outer circumference of the joint part 2 by a thermal spraying gun and built up to form a thermally sprayed part 3. Formation of such thermally sprayed part 3 as this can be performed in the sites of manufacture and piping work of the glass pipe 1. The need for special technique is eliminated and antistress of the joint part 2 can be strengthened at a low cost. Further a burr stuck to the end face of a joint part 5 is removed. Furthermore width Lo of the thermally-sprayed part 3 is preferably regulated to at least 0.7 times of outer diameter L1 of the glass pipe 1.
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