press-in

During the operation of hot press, because there was hysteresis characteristic in the proportional overfall valve, the regular control of press was not very clear, we used "PID-FUZZY" control policy for the hot press, got good results from the simulation operation.

针对实验压机运行过程中存在的由比例溢流阀的滞环效应所引起的常规控制方式对压力控制效果差的问题，采用PID-FUZZY控制策略对热压压力进行调节，模拟运行并取得了良好的效果。

Determination of the Press-in Clearance of the Spinning Sleeve of Rotor in Canned Motor Pump

屏蔽电泵转子旋压套压入间隙的确定

Summarize the main breakdowns that often occurred in large power press used in car manufacturing industry, analyse the causes produced, and put forward improving measures. In the last of the paper, point out main factors affect to service life of the press.

总结了汽车制造业所用大型机械压力机的主要故障，对故障的原因进行了分析，并提出改进措施，最后指出了影响压力机寿命的主要因素。