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R9009615334WRA6WA15-2X/G24N9K4/V
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R9009632964WRA6WA15-2X/G24N9K4/V-589
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R9009656744WRAE10E60-2X/G24K31/F1V
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R9009679754WRA6EA03-2X/G24N9K4/V-589
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R9009726604WRAP6W7-07-3X=G24K4/V=00
R9009728274WRA6W1-07-2X/G24K4/V
R9009748174WRAE6W1-30-2X/G24K31/F1V
R9009764954WRA6W15-2X/G24K4/V-589
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R9788793384WRAB6E12-1X/G24N9K4/MR
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电磁比例换向阀(带反馈) 4WRE(E)...2X...
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R9003468064WRE6E32-1X/24K4/M
R9003611474WRE6EA08-1X/24K4/M
R9003771304WRE6E08-1X/24K4/M
R9003771314WRE6E16-1X/24K4/M
R9003790464WRE6E08-1X/24K4/V
R9003855624WRE6W16-1X/24K4/M
R9003886814WRE6W08-1X/24K4/M
R9003923444WRE10E64-1X/24K4/M
R9003923454WRE10E32-1X/24K4/M
R9003923464WRE10W32-1X/24K4/M
R9004995644WRE6W32-1X/24K4/M
R9005491134WRE10E1-32-1X/24K4/M
R9005512804WRE6W1-08-1X/24K4/M
R9005823314WRE10E16-1X/24K4/M
R9006084204WRE10W3-75-2X/G24K4/V
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R9007117834WRE6E00-2X/G24K4/V-712
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R9007675614WREE10EA25-2X/G24K31/F1V
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R9009045914WRE10W64-1X/24K4/M
R9009067284WRE6W1-32-1X/24K4/M
中碳钢或合金中碳钢零件采用调质处理,可有效提高和充分发挥材料的机械强度等性能。但是对于轴径比较粗大的轴类零件,调质时淬火的有效层只有几毫米,经调质、机械加工后所剩无几,而心部状态实际上并没有得到很好的改善。所以根据笔者的经验,φ70以上的实心轴类零件,可以考虑采用正火十机械加工或正火十淬火十磨削外圆的工艺流程。因为轴类零件往往采用高频或中频淬火,加热只发生在外圆表层,心部织实际不可能被淬透。若用盐浴炉加热,心部可以被加热,但材料的淬透性有限,调质时的淬火实际在心部还是淬不透的。而正火可以有效改善零件的整体组织状态,细化心部金相组织,这对有些零件来说已经足够了。
(9)液压系统设计时,应充分考虑机器的整体布局,液压油箱的容积以足够用为原则,使液压油用量为少;管路走向简单紧凑,长度尽可能短。同理,在设计电器系统和制动管路系统时,都应使电缆或制动管路走向合理,长度为短。
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