发明名称 |
CASING, TEMPERATURE THEREOF CAN BE ADJUSTED FOR BIAXIAL SCREW EXTRUDING MACHINE |
摘要 |
A temperable screw casing for a twin screw extruder for processing plastics comprises a supporting member and wear resistant liner disposed therein. The liner has a spectacle shaped bore accommodating both screws of the extruder. The supporting member, which engages around the liner, takes over the reinforcing function of the screw casing. Low technical manufacturing cost and satisfactory tempering of the screw casing is achieved by providing the liner with a circular external cross section, surrounded by a supporting member which has a circular internal recess. Axial tempering holes are provided in wedge shaped projections which extend into the spectacle shaped bore of the liner. Axial tempering holes are disposed opposite one another in the supporting member, at the sides of the spectacle shaped bore of the liner. These result in individual tempering systems, by which the liner and supporting member can be tempered independently. |
申请公布号 |
JPS5729439(A) |
申请公布日期 |
1982.02.17 |
申请号 |
JP19810096089 |
申请日期 |
1981.06.23 |
申请人 |
BERSTORFF GMBH MASCH HERMANN |
发明人 |
HAINTSU BURIKUMAN;JIIGUFURIIDO KUSUTSUANITSUKII |
分类号 |
B29C47/82;B29B7/00;B29C47/00;B29C47/40;B29C47/66;B29C47/92 |
主分类号 |
B29C47/82 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|