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JP2007144819A Method for inspecting pinholes of blow-molded article and other plastic hollow bodies 有权
标题翻译：用于检查吹塑制品和其他塑料中空体的针状物的方法
公开(公告)号：JP2007144819A
公开(公告)日：2007-06-14
申请号：JP2005342857
申请日：2005-11-28
申请人： Kyoraku Co Ltd , キョーラク株式会社
发明人： ONOZAWA HIDEKI , WASHIMI TAKEHIKO
IPC分类号： B29C49/80 , B29C49/46 , B29L22/00 , G01M3/20 , G01M3/26
CPC分类号： B29C2049/4608
摘要： PROBLEM TO BE SOLVED: To provide a method for inspecting the pinhole of a blow-molded article which is suitable for an automatic blow molding process and can detect the pinhole exactly in a very short time by using hydrogen in a very small amount. SOLUTION: In the method, the article blow-molded with the use of a pressurized fluid containing hydrogen is sealed, and it is judged whether the article has the pinhole or not by detecting the hydrogen leaked outside when the sealed article is pressed from its outer surface. A cylindrical parison is extruded from an extruder by melting/kneading a synthetic resin. After the parison is blow-molded in a mold by using the hydrogen-containing pressurized fluid, the blow-molded article is taken out from the mold, and a pressurized fluid introduction hole in the blow molding is blockaded. The hydrogen leaked outside when the article with the hole blockaded is pressed from its outer surface is detected to judge whether the aricle has the pinhole or not. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于检查适合于自动吹塑成型工艺的吹塑制品的针孔的方法，并且可以通过使用非常少量的氢在很短的时间内精确地检测针孔。解决方案：在该方法中，使用含有氢气的加压流体吹塑的制品被密封，并且当密封制品被按压时，通过检测泄露在外部的氢气来判断制品是否具有针孔从其外表面。通过熔融/捏合合成树脂从挤出机挤出圆筒形型坯。在通过使用含氢加压流体将模型吹塑成型后，从模具中取出吹塑制品，并且吹塑成型中的加压流体导入孔被封闭。检测到当从其外表面按压具有堵塞孔的物品时，在外部泄漏氢，以判断该颗粒是否具有针孔。版权所有（C）2007，JPO＆INPIT

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