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JIEJUELOUYOU，GENBENZAISHEJI。YAOYOUSANGEYAODIAN，GUOWAIYIJIEJUE：

（1）YUANSHIANZHUANGKEKAOXING

（2）SHUANGZHONGFANGHUCUOSHI

（3）WEIXIUBAOYANGCUOSHI

ZHEIFANGMIANJIUBUXISHUOLE。

不过，将来可使用生物降解的液压机油。国外一直致力于研制出一种菜油基和合成脂基的传动介质。并预计 10 年以后单柱拉伸液压机，先进国家的行走机械将采用生物降解油单柱液压机。生物降解液压机油可改善环境污染问题，也减轻对泄漏的容忍度。

YINTONGYEYAJIDUBOWANGCHONGYADEJINSHUBOWENGUANZHENGTIYEYACHENGXINGJISHU

液压机赌博网冲压的金属波纹管整体液压成形设备（图5）主要由两个系统构成，即液压机系统和模具系统。液压机采用常规形式即可，包括合模压力机、水平侧缸、增压器、控制部分、乳化液喷淋及辅助部分等。模具需要根据赌博网设计要求的特点，对芯模进行调整、更换。模具包括一组模瓣、模具体、分瓣机构。管坯成形模具轴线与工作平面有垂直和平行两种形式。轴线垂直工作台布置的模具拉伸液压机，一般采用阶梯销轴串联模瓣的结构形式。轴线水平工作台布置的模具，一般采用卯榫勾连模瓣滑道的结构形式。典型零件的整体成形操作流程包括：管坯下料-管口打磨，扩孔-模具复位，开模-管坯在模具中定位-合模胀形-冲头推模成形-卸压，冲头复位-开模取件框架式液压机。图6所示为液压机冲压的金属波纹管整体液压成形技术原理图。

pagenumber_ebook=10,pagenumber_book=18

TU5 YINTONGYEYAJIDUBOWANGCHONGYADEJINSHUBOWENGUANZHENGTIYEYACHENGXINGSHEBEI

1-YEYAXITONG 2-MOJU 3-SHUIPINGGANG 4-YALIJI5-JICHUANGBENTI 6-KONGZHIXITONG

pagenumber_ebook=10,pagenumber_book=18

TU6 YINTONGYEYAJIDUBOWANGCHONGYADEJINSHUBOWENGUANZHENGTIYEYACHENGXINGJISHUYUANLITU

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液压机的齿轮泵的工作原理如图3-3所示，它是分离三片式结构，三片是指泵盖4，8和泵体7，泵体7内装有一对齿数相同、宽度和泵体接近而又互相啮合的齿轮6，这对齿轮与两端盖和泵体形成一密封腔，并由齿轮的齿顶和啮合线把密封腔划分为两部分，即吸油腔和压油腔。两齿轮分别用键固定在由滚针轴承支承的主动轴12和从动轴15上，主动轴由电动机带动旋转。

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