发明授权
- 专利标题： Process of molding giant articles of structured plastic
- 专利标题（中）： 结构塑料制品的制造工艺
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申请号： US3763293D申请日： 1972-02-03
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公开(公告)号： US3763293A公开(公告)日： 1973-10-02
- 发明人: NUSSBAUM F
- 申请人： BISCHOFF CHEMICAL CORP
- 专利权人： Bischoff Chemical Corp
- 当前专利权人： Bischoff Chemical Corp
- 优先权： US14990171 1971-06-09; US22333472 1972-02-03
- 主分类号： B29C33/04
- IPC分类号： B29C33/04 ; B29C33/56 ; B29C35/00 ; B29C44/04 ; B29C44/34 ; B06B3/00 ; B29D27/00 ; B29F1/06
摘要：
PROGRAMMING, AND/OR DIFFERENTIAL PRESSURE PROGRAMMING FOR DIFFERENT ZONES OF THE ARTICLE. VARIOUS SUPPLEMENTAL AND/OR OPTIONAL FEATURES ARE DISCLOSED.
GIANT SIZED PLASTIC ARTICLES ARE MASS PRODUCED WITH AUTOMATION BY LOW PRESSURE INJECTION MOLDING. AN ARTICLE IS DESIGNED TO ACHIEVE THE ULTIMATE ENGINEERING PERFORMANCE OF THE INTERNAL STRUCTURE IN RELATION TO ITS EXTERNAL SHAPE, THUS PROVIDING ZONES IN WHICH THE INTERNAL STRUCTURE IS DIFFERENT FROM OTHER ZONES, ANDSUCH DIFFERENCES ARE IMPARTED BY THE CONTROL OF THE MOLDING PROCESS. THE PROPORTIONS OF GAS AND MOLTEN PLASTIC ARE CAREFULLY CONTROLLED PRIOR TO THE ACCUMULATION OF THE FEED IN A BATCHING DEVICE. A SHOT OF FEED FLOWS THROUGH A DISTRIBUTION SYSTEM INTO A STRUCTURIZER MOLD HAVING CONTOURED WALLS OF LOW SPECIFIC HEAT AND HAVING HEAT TRANSFER MEANS PERMITTING DIFFERENTIAL PROGRAMMING OF THE TEMPERATURE OF DIFFERENT ZONES. BEFORE THE ARTICLE HAS SOLIDIFIED IN THE STRUCTURIZER MOLD, THE DESIRED DIFFERENCES IN INTERNAL STRUCTURE ARE IMPARTED BY REASON OF THE DIFFERENTIAL TEMPERATURE
GIANT SIZED PLASTIC ARTICLES ARE MASS PRODUCED WITH AUTOMATION BY LOW PRESSURE INJECTION MOLDING. AN ARTICLE IS DESIGNED TO ACHIEVE THE ULTIMATE ENGINEERING PERFORMANCE OF THE INTERNAL STRUCTURE IN RELATION TO ITS EXTERNAL SHAPE, THUS PROVIDING ZONES IN WHICH THE INTERNAL STRUCTURE IS DIFFERENT FROM OTHER ZONES, ANDSUCH DIFFERENCES ARE IMPARTED BY THE CONTROL OF THE MOLDING PROCESS. THE PROPORTIONS OF GAS AND MOLTEN PLASTIC ARE CAREFULLY CONTROLLED PRIOR TO THE ACCUMULATION OF THE FEED IN A BATCHING DEVICE. A SHOT OF FEED FLOWS THROUGH A DISTRIBUTION SYSTEM INTO A STRUCTURIZER MOLD HAVING CONTOURED WALLS OF LOW SPECIFIC HEAT AND HAVING HEAT TRANSFER MEANS PERMITTING DIFFERENTIAL PROGRAMMING OF THE TEMPERATURE OF DIFFERENT ZONES. BEFORE THE ARTICLE HAS SOLIDIFIED IN THE STRUCTURIZER MOLD, THE DESIRED DIFFERENCES IN INTERNAL STRUCTURE ARE IMPARTED BY REASON OF THE DIFFERENTIAL TEMPERATURE
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