column>疲惫的英文专利名称：IMPROVED PRESSURE-HOLDING CHAMBER TYPE INJECTION MOLDING PROCESS AND
APPARATUS
发明人：SHIGERU TSUTSUMI
申请号：AU5178190
怎样才能学好英语
huke申请日：19900307
ypbpr公开号：AU5178190A英语四级不到425有用吗
公开日：
19910516
snd>for the first time
专利内容由知识产权出版社提供国际学校有哪些
摘要：A system of injection-moulding a super-precision prod. is characterid by the material pressure-holding step with additional features in that a nozzle passage enlarged in volume, extending from the machine body to a cavity gate is interrupted midway by a valve from communication with the interior of the body, after the injection step but during the pressure-holding step. The pressure-holding step is carried out using the valve, exerting an internal pressure on a forward portion of the injected material pd., and compacted in a fixed clod space limited by the valve. An instantaneous remetering step is carried out such that the material in the fixed space is adjusted to a predetermined value in amt. in every shot by regulating its internal pressure to a corresponding value with a possible excess part of the material being discharged out of the machine system.
申请人：SEIKI CORPORATION CO., LTD.
更多信息请下载全文后查看
nice的意思
