Title: Hole checking method of blow molding article or other plastic hollow body
Application Number: 200610160495 Application Date: 2006.11.28
Publication Number: 1975414 Publication Date: 2007.06.06
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01N33/00;G01M3/32
Applicant(s) Name: Kyoraku Co., Ltd. Address:
Inventor(s) Name: Onozawa Eiki;Sumi Takehiko
Attorney & Agent: ligui liang
Abstract:
    The present invention provides a method for examining little holes of blow molding products suiting for automatic blow molding process. Little holes of blow molding product are examined correctly in extremely short second with the present method. The method determines whether blow molding products having little holes by examining hydrogen leaking out from pressed sealing blow molding products with sealing blow molding products blow molded with pressure flow containing hydrogen. Then synthetic resins mixture are smelted and tubular parison is extruded out by extruder, blow molding product is fetched out and pressure flow inlet is closed after parison is blow molded in die with pressure flow containing hydrogen, then whether blow molding products having little holes is examined by examining hydrogen leaking out from pressed sealing blow molding products with sealing pressure flow inlet.
Time: 8
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