发明名称 |
Process for forming plastic articles |
摘要 |
An improvement in the process of forming plastic articles wherein such articles are forged from a compression formed briquette of resinous powder, such improvement comprising (1) compressing a resinous powder having lamellar crystalline nonspherulitic morphology into a substantially unoriented briquette having green strength, (2) removing the briquette from the compressing device and placing the briquette in a forging press wherein lubrication is provided between the contacting surfaces of the briquette and the forging press to permit plug flow, and (3) forging the briquette into a shaped article while maintaining the briquette at a temperature between the alpha-transition temperature and the melt temperature of the resinous powder.
|
申请公布号 |
US4161502(A) |
申请公布日期 |
1979.07.17 |
申请号 |
US19770789385 |
申请日期 |
1977.04.02 |
申请人 |
DOW CHEMICAL CO THE |
发明人 |
GURNEE, EDWARD F;WESSLING, RITCHIE A |
分类号 |
B29C43/14;B29C43/16;(IPC1-7):B29C3/00 |
主分类号 |
B29C43/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|