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发明授权
CN1975414B 吹塑成形品的小孔检查方法 失效 - 权利终止

吹塑成形品的小孔检查方法
摘要：
本发明提供一种吹塑成形品的小孔检查方法，适合自动吹塑成形工序，可用极少量的氢、用极短时间且正确地检测吹塑成形品的小孔。该方法是密封利用含有氢的压力流体吹塑成形的吹塑成形品，检测从外面挤压密封的吹塑成形品时向外部漏出的氢，判定吹塑成形品是否有小孔的方法。将合成树脂熔融混炼并由挤压机挤出筒状的型坯，接着利用含有氢的压力流体在模具内将型坯吹塑成形后，从模具取出吹塑成形品，并封闭吹塑成形时的压力流体导入孔，通过检测从外面挤压已封闭了压力流体导入孔的吹塑成形品时向外部漏出的氢，判定吹塑成形品是否有小孔。
摘要（英）：

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 examininghydrogen leaking out from pressed sealing blow molding products with sealing pressure flow inlet.

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