Rexroth力士乐液压系统A4VSO500HSK/30R-PPH13N0010SET压力阀



超级恒温循环器与恒温循环器的区别？答：主要在于恒温的精度问题。一般来说，超级恒温循环器热电偶的精度更高，一般可以达到.1℃。有加热和制冷两种装置的，这样在恒温的时候，效果会更好，一般都可以达到+/-.5℃。都是用来做恒温要求比较高的试验（物理化学居多），比如测粘度普通的恒温循环器一般就是.1℃的精度了，甚至不是用热电偶的，而是用触点温度计。为什么粘度计要垂直地置于恒温循环器中?答：因为物质的粘度与其温度成比例关系.另外,由于物质粘度的计算公式中有一个涉及剪切力的量,我想可能是因为这个原因才要直放的原因吧.因为如果剪切力相同而力的作用角度不同的话合成的剪切力也是不同的.请问恒温循环器的恒温原理是什么答：恒温循环器控温由下面几部分组成：加热部分：用电加热管给恒温循环器加热测温部分：一般用工业用铂热电阻作为测温元件，将测得的温度值转换成相应的电阻信号给配套的显示调节仪表显示恒温循环器内温度调节控制部分：温度显示调节仪表根据测得的恒温循环器内温度与设定的温度之差进行PID（比例、积分、微分）调节后控制可控硅导通角从而控制电加热管的加热功率，加热功率随温差大小而改变，当达到设定温度时，调节仪通过可控硅使加热管产生的热量与散失的热量平衡，从而实现恒温目的。
充水水泵在启动以前，泵壳和吸水管内必须先充满水，这是因为有空气存在的情况下，泵吸人口真空无法形成和保持。暖泵输送高温液体的泵，如电厂的锅炉给水泵，在启动前必须先暖泵。这是因为给水泵在启动时，高温给水流过泵内，使泵体温度从常温很快升高到1～2℃，这会引起泵内外和各部件之间的温差，若没有足够长的传热时间和适当控制温升的措施，会使泵各处膨胀不均，造成泵体各部分变形、磨损、振动和轴承抱轴事故。
超声波清洗设备的频率应该在生产厂商所建议的范围内，用经多次所得的佳频率进行清洗。超声波频率越高，液体内气泡的体积越小，强度也越弱，一般推荐使用的频率为4KHz，在此频率下，会产生小的气泡深入网穴进行清洗.不过，由于网纹辊的性质及超声波清洗设备设计不同，此频率推荐值仅供参考。。清洗剂的温度也会影响到清洗质量，温度高，清洗剂黏度就低，液体中的气泡量就会增加，从而增加超声波清洗的能力。
b.双吸泵叶轮的两侧同时吸入液体，如图1-12所示。按导叶机构的形式a.蜗壳式泵具有像蜗牛壳形状的离心泵，单级泵大多是这种形式。b.导叶式泵在叶轮外围安有几个固定导叶片的泵即为导叶式泵(图1-13)。在早期，这种泵叫透平泵。多级泵大多是这种形式。按泵体接缝形式a.具有水平接缝的泵(中开式)通过泵轴中心线的水平面上开有泵体接缝的泵(图1-12)。具有垂直接缝的泵垂直于泵轴中心线的面上安装泵盖的泵。
A10VSO100:
                  A10VSO100DFR/31L-PSC62K07,A10VSO100DFR1/31R-PUC12N00 


A10VSO10:
                 A10VSO10DFR1/52R-PKC64N00,A10VSO10DFR1/52R-PPA14N00,A10VSO10DR/52L-PKC64N00,A10VSO10DR/52R-PKC64N00,A10VSO10DR/52R-PPA14N00


A10VSO18:
                A10VSO18DFR/31R-PKC62N00,A10VSO18DFR/31R-PPA12K01,A10VSO18DFR/31R-PPA12N00,A10VSO18DFR1/31R-PPA12K01,A10VSO18DFR1/31R-PPA12N00 
A10VSO18DFR1/31R-PUC62N00,A10VSO18DR/31L-PUC12N00,A10VSO18DR/31R-PPA12N00,A10VSO18DR/31R-PSC12N00,A10VSO18DRG/31R-PPA12N00 


A10VSO28:
                A10VSO28DFLR/31L-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00 
A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PSA12N00 
A10VSO28DFR/31R-PPA12N00,A10VSO28DFR/31R-PPA12N00,A10VSO28DFR/31R-VPA12N00,A10VSO28DFR1/31R-PPA12L30,A10VSO28DFR1/31R-PPA12N00 
A10VSO28DFR1/31R-PSC12N00,A10VSO28DFR1/31R-PSC62N00,A10VSO28DG/31R-PPA12N00,A10VSO28DR/31L-PPA12N00,A10VSO28DR/31R-PPA12N00 
A10VSO28DRG/31R-PPA12K25,A10VSO28DRG/31R-PPA12N00,A10VSO28ED73/52L-VSC11N00P 


A10VSO45:
                A10VSO45DFLR/31R-PPA12K57,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00 
A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFR/31R-PPA12N00,A10VSO45DFR/31R-PPA12O30 
A10VSO45DFR/31R-PSC62N00,A10VSO45DFR/52R-PSC12N00,A10VSO45DFR1/31R-PPA12G60,A10VSO45DFR1/31R-PPA12K54,A10VSO45DFR1/31R-PPA12K57 
A10VSO45DFR1/31R-PPA12N00,A10VSO45DFR1/31R-PPA12N00,A10VSO45DFR1/31R-PPA12N00,A10VSO45DFR1/52L-PSC11N00,A10VSO45DFR1/52R-PUC11N00 
A10VSO45DR/31R-PPA12K01,A10VSO45DR/31R-PPA12K25,A10VSO45DR/31R-PPA12K57,A10VSO45DR/31R-PPA12N00,A10VSO45DR/31R-PPA12O90 
A10VSO45DRG/31R-PPA12N00,A10VSO45ED72/52R-VSC11N00T 


A10VSO60:
                A10VSO60DFR/52R-PCD11N00 


A10VSO71:
                A10VSO71DFLR/31R-PPA12N00,A10VSO71DFLR/31R-PPA12N00,A10VSO71DFR/31L-PSC62N00,A10VSO71DFR1/31R-PSC12N00,A10VSO71DRG/31L-PSC12N00 


AA10VSO100:
                   AA10VSO100DFLR/31R-PPA12G30,AA10VSO100DFLR/31R-PPA12N00,AA10VSO100DFLR/31R-PPA12N00,AA10VSO100DFLR/31R-PPA12N00 
AA10VSO100DFLR/31R-PPA12N00,AA10VSO100DFLR/31R-PPA12N00,AA10VSO100DFR/31R-PPA12K01,AA10VSO100DFR/31R-PPA12K25,
AA10VSO100DFR/31R-PPA12N00,AA10VSO100DFR1/31R-PPA12K25,AA10VSO100DFR1/31R-PPA12N00,AA10VSO100DFR1/31R-PPA12N00,AA10VSO100DFR1/31R-PPA12N00,
AA10VSO100DR/31R-PPA12N00,AA10VSO100DR/31R-PPA12N00,AA10VSO100DR/31R-VPA12N00,AA10VSO100DRG/31R-PPA12N00 


AA10VSO140:
                    AA10VSO140DFLR/31R-PPB12N00,AA10VSO140DFLR/31R-PPB12N00,AA10VSO140DFLR/31R-PPB12N00,AA10VSO140DFLR/31R-PPB12N00,
AA10VSO140DFLR/31R-PPB12N00,AA10VSO140DFLR/31R-PSB12N00,AA10VSO140DFR/31R-PPB12N00,AA10VSO140DFR1/31R-PPB12N00,AA10VSO140DFR1/31R-PPB12N00,AA10VSO140DFR1/31R-VPB12N00,AA10VSO140DR/31L-PPB12N00,AA10VSO140DR/31R-PPB12K02,AA10VSO140DR/31R-PPB12N00,AA10VSO140DRG/31R-PPB12N00 


AA10VSO71:
                  AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,
AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,
AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFR/31R-PPA12K01,AA10VSO71DFR/31R-PPA12N00,AA10VSO71DFR1/31R-PPA12K01,
AA10VSO71DFR1/31R-PPA12L30,AA10VSO71DFR1/31R-PPA12N00,AA10VSO71DFR1/31R-PPA12N00,AA10VSO71DFR1/31R-PPA12X31,
AA10VSO71DR/31R-PPA12N00,AA10VSO71DRG/31R-PPA12K01,AA10VSO71DRG/31R-PPA12N00,AA10VSO71FHD/31R-PPA12K01