公开(公告)号：US3760599A

公开(公告)日：1973-09-25

申请号：US3760599D

申请日：1971-08-02

申请人： BOSE R

发明人： BOSE R

IPC分类号： B29C35/16 ,  B29C49/66 ,  F17C13/02

CPC分类号： B29C49/66 ,  B29C2035/165 ,  B29C2035/1658 ,  Y10T137/2572

摘要： The intermittent flow of carbon dioxide liquid from a high pressure reservoir to a low pressure use area is controlled by a flow restricting orifice disposed in the supply line and a simple control valve located in the line downstream of the orifice. An additional source of pressurized fluid maintains the pressure between the orifice and the valve above the triple point of carbon dioxide to prevent solidification of the carbon dioxide upstream of the valve. In a cyclical blow molding operation wherein liquid carbon dioxide is used to chill the freshly molded parts, the pressure of the fluid used to expand the parison is maintained above the triple point of carbon dioxide to prevent solidification of the carbon dioxide. Additionally, a predetermined amount of carbon dioxide is permitted to vaporize in the line upstream of the orifice during the off cycle in the molding operation thereby providing the necessary time delay between the application of the parison expanding gas and the injection of the liquid carbon dioxide into the molded part.

摘要翻译： 二氧化碳液体从高压储存器到低压用途区域的间歇流动由设置在供应管线中的流动限制孔和位于孔口下游的管线中的简单控制阀控制。 额外的加压流体源将孔和阀之间的压力保持在二氧化碳的三重点之上，以防止阀上游的二氧化碳固化。

公开(公告)号：US3789093A

公开(公告)日：1974-01-29

申请号：US3789093D

申请日：1971-12-08

申请人： BOSE R

发明人： BOSE R

IPC分类号： B29C33/04 ,  B29C35/16 ,  B29C45/17 ,  B29C45/73 ,  B29C49/04 ,  B29C49/46 ,  B29C49/48 ,  B29C49/64 ,  B29C49/66 ,  B29C17/07

CPC分类号： B29C33/046 ,  B29C45/1701 ,  B29C45/73 ,  B29C49/04 ,  B29C49/46 ,  B29C49/4823 ,  B29C49/64 ,  B29C49/66 ,  B29C2035/1658 ,  B29C2049/4825

摘要： Process of accelerating the molding cycle when using blow molding or injection molding machines including providing an enclosure around the molding area and supplying to said enclosure an atmosphere for blanketing the mold area with carbon dioxide gas to reduce the dew point in the mold cavities whereby the molds may be operated at a lower temperature without causing surface imperfections on the molded part. In other embodiments multi-station blow molding and injection molding machines include an enclosed mold area into which exhaust carbon dioxide from the molded articles is vented to maintain the dew point at a value below that of the ambient.

摘要翻译： 在使用吹塑或注射成型机的过程中加速成型周期，包括在模制区域周围提供外壳，并向所述外壳供应用于用二氧化碳气体覆盖模具区域的气氛，以减少模腔中的露点，由此模具 可以在较低温度下操作，而不会在模制部件上引起表面缺陷。 在其他实施例中，多工位吹塑和注射成型机包括封闭的模具区域，来自模制品的废气二氧化碳排放到其中，以将露点保持在低于环境温度的值。

公开(公告)号：US3744262A

公开(公告)日：1973-07-10

申请号：US3744262D

申请日：1971-06-30

申请人： BOSE R

发明人： BOSE R

IPC分类号： B29C51/42 ,  F25D3/10 ,  F25D25/00

CPC分类号： F25D3/10 ,  B29C51/427

摘要： Thermoformed plastic parts are cooled before removal from the mold by enclosing an area adjacent to the part and introducing liquid carbon dioxide to the confined area through metering orifices.