压塞

Based on the foregoing analysis, the critical condition of realizing ductile/brittle transform is confirmed, and then, the model of ductile grinding of engineering ceramic is built.

以陶瓷材料压痕断裂力学、线性断裂力学和微观断裂物理学为理论基础，系统的分析和讨论了磨削加工过程中微裂纹的产生机理及其影响因素，建立了裂纹分布模型，并根据位错产生微裂纹机制，对磨削过程微裂纹的形成采用位错塞积模型来描述，从能量平衡的角度，讨论位错裂纹的稳定性与磨削应力的关系，确定了材料脆性去除和塑性去除转换的临界条件，最终建立以此为基础的工程陶瓷材料延性域去除模型。

Metal cock ring soft seat surface pressure to the bearing surfaces, such as the valve core and valve seat is concentric ring surface can be a double tight closure.

金属旋塞表面压向阀座环软支座表面，如阀芯和阀座环表面是同心的，就能得到双重严密的关闭。

The differential pressure signal of slug flow was gathered in a downward inclined pipe, and the time series of liquid slug length was obtained by utilizing the cross correlation analysis.

通过采集下倾管中活塞流的差压信号，应用互相关法分析得到液塞长度时间序列。

For the insulation with electroscope metal lever and crust, suppress of pink of sees useful glass, porcelain, bakelite is tasted, olefin, of useful even and common rubber and cork.

以验电器金属杆和外壳的绝缘来说，所见到的就有用玻璃、瓷、胶木粉压制品、石蜡，甚至有用普通橡皮及软木塞的。

The methods of computing holdup, pressure drop and temperature drop were simply introduced and some important formulas were derived.

并简要介绍了段塞流工艺计算中的持液率计算及压降和温降的计算，并对重要的公式进行了推导。

The balance valve circuit is to support the weight of platen and plunger design.

回路中的平衡阀是为支撑压板及柱塞的重量而设计的。

The most common type uses spring tension and pressure against a plunger to maintain the pressure.

最常用的一种回压阀使用弹簧张力和对柱塞的压力来保持压力。

Concerning the working conditions of plunger ,when we use it ,we can adopt some measures as followed

针对压裂泵的工况，在使用柱塞时，可采用以下一些方法

Normally open solenoid valve, coil power after the due role of suction, dynamic core down to the Deputy valve valve plug depressed, GLOBE VALVE vice valve closed, the main valve valve cup pressure rise, when the pressure rose to a certain value, the main valve valve cup Like the upper and lower pressure, due to the role of the electromagnetic force, moving to promote the main valve core valve cup, the clamping main valve seat, the valve closed.

常开电磁阀，线圈通电后由于吸力作用，动铁芯下移，把副阀阀塞压下，副阀关闭，主阀阀杯内压力上升，当压力升到一定值时，主阀阀杯的上下压差一样，由于电磁力作用，动铁芯推动主阀阀杯下，压紧主阀阀座，阀门关闭。

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In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。