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1)  Distributing valve seat
配气阀座
1.
According to the technique requirements of distributing valve of engine used under the conditions of high temperature and high pressure, the nickel alloy base self-lubricating composites containing silver and graphite were prepared using hot-press processing, and the distributing valve seat was made to realize self-lubrication.
作者根据发动机配气阀座在高温、高压、高速等苛刻条件下使用的技术要求,以摩擦学原理为指导进行配料,利用粉末冶金热压成型工艺制备出含银和石墨的镍合金基自润滑复合材料,并由该材料制作配气阀座实现其自润滑。
2)  valve actuating mechanism
发动机配气阀座
3)  exhaust valve seat
排气阀座
1.
In order to be suitable for the leadfree gasoline and meet the demand of automotive exhaust gas equipment, exhaust valve seat made of high-chromium cast iron is developed.
为适应汽油无铅化及汽车排气净化装置的要求,开发出了高铬铸铁排气阀座。
2.
Analysis on the exhaust valve seat failed due to the leaking and further technology testing revealed that the structure in the exhaust end of the valve seat had transformed in the course of service due to unsuitable surface quenching and tempering processes,and thus the valve seat distorts,resulting in failure of the valve seat due to leaking.
对泄漏失效的排气阀座的检测分析和进一步的工艺试验表明,由于表面淬火、回火工艺不当,该阀座排气端在服役过程中发生了组织转变,进而产生变形,最终导致泄漏失效。
4)  inlet valve seat
进气阀座
5)  seated valve pump
座阀配流泵
6)  exhaust valve seat insert
排气阀座圈
1.
Especially several high cobalt containing sintered materials are used as exhaust valve seat insert materials because(it s) high wear and heat resistant properties.
特别是,一些高钴烧结材料由于耐磨耗与耐热性高而广泛用作排气阀座圈材料。
补充资料:异配位体配位化合物
分子式:
CAS号:

性质:又称异配位体配位化合物。中心离子同时与两种以上不同配体共存于配位内界所组成的单核或多核配位化合物。例如,三氯·氨合铂(II)酸钾和(2)铜(II)-吡啶(py)-水杨酸(sal)配位化合物。在溶液中混配配位化合物的形成是普遍现象。与单一型配位化合物比较,它加强了中心体的化学个性(如易满足高配位数、增强不稳价态稳定性、光学性质改变等),也加强了配体的反应活性和协同萃取效应。在湿法冶金、电化学、分析化学、药物化学、环境化学、生物无机化学和材料化学等方面有着重要作用。

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