现货批发北京华德先导式溢流阀DB10A-2-30B/200X

液压油的分类与液压油的作用

随着我国液压技术的迅速发展，液压油日益 精细与成熟。液压油在液压系统中担负着能量传 递、转换和控制，同时，它还起着系统的润滑、防 锈、防腐、冷却等作用。因此，液压油质量高低、选 用恰当与否直接影响着液压系统的工作效率和液 压设备的使用寿命。 为了满足现代液压设备的发展及其使用条件的严格要求，液压油已由原来的 抗氧防锈型发展为高压抗磨型。   

  液压油的种类繁多,分类方法各异,长期以来,习惯以用途进行分类,也有根据油品类型、化学组分或可燃性分类的。这些分类方法只反映了油品的挣注,但缺乏系统性,也难以了解油品间的相互关系和发展。

  液压油的分类与命名    液压油的分类方法过去主要有以下几种：    按液压油用途分类：航空液压油、舰船液压油、数控机床液压油，特种液压油等。   按使用温度范围分类：普通、高温、低温液压油，宽温范围液压油。    按液压油的组成分类：无添加剂型、防锈抗氧型、抗磨型、高粘度指数液压油型等。   按使用特性分类：易燃、难燃、环保型等。   按使用压力分类：普通、高压液压油等。    按添加剂类型分类：无灰、有灰，锌型、无锌、低锌、高锌液压油等。

  液压油的品种与质量性能、大致分为以下几大类

  L-HL液压油    L-HL液压油是由精制深度较高的中性油作为基础油，加入抗氧、防锈和抗泡添加剂制成，适用于机床等设备的低压润滑系统。

  L-HM液压油    HM液压油是在防锈、抗氧液压油基础上改善了抗磨性能发展而成的抗磨液压油。

  L-HG液压油    HG液压油亦称液压-导轨油，是在L-HM液压油基础上添加抗粘滑剂(油性剂或减摩剂)构成的一类液压油，适用于液压及导轨为一个油路系统的精密机床，可使机床在低速下将振动或间断滑动(粘-滑)减为Zui小。

 L-HV液压油    HV液压油是具有良好粘温特性的抗磨液压油。该油是以深度精制的矿物油为基础油并添加高性能的粘度指数改进剂和降凝剂，具有低的倾点、高的粘度指数(＞130)和良好的低温粘度。

  L-HS液压油    HS液压油是具有更良好低温特性的抗磨液压油。该油是以合成烃油、加氢油或半合成烃油为基础油，同样加有高性能的粘度指数改进剂和降凝剂，具备更低的倾点、更高的粘度指数(＞130 )和更优良的低温粘度。

   L-HR 液压油    GB 7631.2-87中设有此类油品，是改善粘温性的HL液压油，用于环境变化大的中、低压系统；但我国在GB 11118.1-94中不设此类油品，如果有使用L-HR液压油的场合，可选用L-HV液压油。

北京华德液压全系列 具体型号及报价请联系客服

北京华德换向阀部分型号如下：

4WE6H61B/CW220-50N9Z4 4WEH10D20B/6AW220-50NETZ4

4WE6H61B/CW220-50N9Z5 4WEH10D20B/6AW220-50NETZ5

4WE6H61B/CW220-50N9Z5L 4WEH10D20B/6AW220-50NETZ5L

4WE6H61B/CW220-50NK4 4WEH10D20B/6AW220-50NEZ4

4WE6H61B/CW220-50NZ4 4WEH10D20B/6AW220-50NEZ5

4WE6H61B/CW220-50NZ5 4WEH10D20B/6AW220-50NEZ5L

4WE6H61B/CW220-50NZ5L 4WEH10D20B/6AW220-50NTZ4

4WE6J50B/AG24N         4WEH10D20B/6AW220-50NTZ5

4WE6J50B/AW220-50N 4WEH10D20B/6AW220-50NTZ5L

4WE6J50B/BG24N         4WEH10D20B/6AW220-50NZ4

4WE6J50B/BW220-50N 4WEH10D20B/6AW220-50NZ5

4WE6J61B/CG12N9DKL 4WEH10D20B/6AW220-50NZ5L

4WE6J61B/CG12N9DL 4WEH10D20B/6EW220-50NETZ4

4WE6J61B/CG12N9Z4 4WEH10D20B/6EW220-50NETZ5

4WE6J61B/CG12N9Z5 4WEH10D20B/6EW220-50NETZ5L

4WE6J61B/CG12N9Z5L 4WEH10D20B/6EW220-50NEZ4

4WE6J61B/CG12NDKL 4WEH10D20B/6EW220-50NEZ5

4WE6J61B/CG12NDL 4WEH10D20B/6EW220-50NEZ5L

4WE6J61B/CG12NZ4 4WEH10D20B/6EW220-50NTZ4

4WE6J61B/CG12NZ5 4WEH10D20B/6EW220-50NTZ5

4WE6J61B/CG12NZ5L 4WEH10D20B/6EW220-50NTZ5L

4WE6J61B/CG24N9DKL 4WEH10D20B/6EW220-50NZ4

4WE6J61B/CG24N9DL 4WEH10D20B/6EW220-50NZ5

4WE6J61B/CG24N9Z4 4WEH10D20B/6EW220-50NZ5L

4WE6J61B/CG24N9Z5 4WEH10E20B/6AW220-50NETZ4

4WE6J61B/CG24N9Z5L 4WEH10E20B/6AW220-50NETZ5

4WE6J61B/CG24NDKL 4WEH10E20B/6AW220-50NETZ5L

北京华德液压全系列 具体型号及报价请联系客服

北京华德换向阀部分型号如下：

4WE6J61B/CG24NDL 4WEH10E20B/6AW220-50NEZ4

4WE6J61B/CG24NZ4 4WEH10E20B/6AW220-50NEZ5

4WE6J61B/CG24NZ5 4WEH10E20B/6AW220-50NEZ5L

4WE6J61B/CG24NZ5L 4WEH10E20B/6AW220-50NTZ4

4WE6J61B/CW220-50N9DKL 4WEH10E20B/6AW220-50NTZ5

4WE6J61B/CW220-50N9DL 4WEH10E20B/6AW220-50NTZ5L

4WE6J61B/CW220-50N9Z4 4WEH10E20B/6AW220-50NZ4

4WE6J61B/CW220-50N9Z5 4WEH10E20B/6AW220-50NZ5

4WE6J61B/CW220-50N9Z5L 4WEH10E20B/6AW220-50NZ5L

4WE6J61B/CW220-50NDKL 4WEH10E20B/6EG24NETZ4

4WE6J61B/CW220-50NDL 4WEH10E20B/6EG24NETZ5

4WE6J61B/CW220-50NZ4 4WEH10E20B/6EG24NETZ5L

4WE6J61B/CW220-50NZ5 4WEH10E20B/6EG24NEZ4

4WE6J61B/CW220-50NZ5L 4WEH10E20B/6EG24NEZ5

4WE6L50B/AG24N         4WEH10E20B/6EG24NEZ5L

4WE6L50B/AW220-50N 4WEH10E20B/6EG24NTZ4

4WE6L50B/BG24N         4WEH10E20B/6EG24NTZ5

4WE6L50B/BW220-50N 4WEH10E20B/6EG24NTZ5L

4WE6L61B/CG12N9DKL 4WEH10E20B/6EG24NZ4

4WE6L61B/CG12N9DL 4WEH10E20B/6EG24NZ5

4WE6L61B/CG12N9Z5 4WEH10E20B/6EG24NZ5L

4WE6L61B/CG12N9Z5L 4WEH10E20B/6EW220-50NETZ4

4WE6L61B/CG12NDKL 4WEH10E20B/6EW220-50NETZ5

4WE6L61B/CG12NDL 4WEH10E20B/6EW220-50NETZ5L

北京华德液压全系列 具体型号及报价请联系客服

北京华德换向阀部分型号如下：

4WE6L61B/CG12NK4 4WEH10E20B/6EW220-50NEZ4

4WE6L61B/CG12NZ5 4WEH10E20B/6EW220-50NEZ5

4WE6L61B/CG12NZ5L 4WEH10E20B/6EW220-50NEZ5L

4WE6L61B/CG24N9DKL 4WEH10E20B/6EW220-50NTZ4

4WE6L61B/CG24N9DL 4WEH10E20B/6EW220-50NTZ5

4WE6L61B/CG24N9Z5 4WEH10E20B/6EW220-50NTZ5L

4WE6L61B/CG24N9Z5L 4WEH10E20B/6EW220-50NZ4

4WE6L61B/CG24NDKL 4WEH10E20B/6EW220-50NZ5

4WE6L61B/CG24NDL 4WEH10E20B/6EW220-50NZ5L

4WE6L61B/CG24NK4 4WEH10F20B/6EG24NETZ4

4WE6L61B/CG24NZ5 4WEH10F20B/6EG24NETZ5

4WE6L61B/CG24NZ5L 4WEH10F20B/6EG24NETZ5L

4WE6L61B/CW220-50N9DKL 4WEH10F20B/6EG24NEZ4

4WE6L61B/CW220-50N9DL 4WEH10F20B/6EG24NEZ5

4WE6L61B/CW220-50N9Z5 4WEH10F20B/6EG24NEZ5L

4WE6L61B/CW220-50N9Z5L 4WEH10F20B/6EG24NTZ4

4WE6L61B/CW220-50NDKL 4WEH10F20B/6EG24NTZ5

4WE6L61B/CW220-50NDL 4WEH10F20B/6EG24NTZ5L

4WE6L61B/CW220-50NK4 4WEH10F20B/6EG24NZ4

4WE6L61B/CW220-50NZ5 4WEH10F20B/6EG24NZ5

4WE6L61B/CW220-50NZ5L 4WEH10F20B/6EG24NZ5L

4WE6M50B/AG24N         4WEH10F20B/6EW220-50NETZ4

4WE6M50B/AW220-50N 4WEH10F20B/6EW220-50NETZ5

4WE6M50B/BG24N         4WEH10F20B/6EW220-50NETZ5L

4WE6M50B/BW220-50N 4WEH10F20B/6EW220-50NEZ4

4WE6M61B/CG12N9DKL 4WEH10F20B/6EW220-50NEZ5

4WE6M61B/CG12N9DL 4WEH10F20B/6EW220-50NEZ5L

北京华德液压全系列 具体型号及报价请联系客服

北京华德换向阀部分型号如下：

4WE6M61B/CG12N9K4 4WEH10F20B/6EW220-50NTZ4

4WE6M61B/CG12NDKL 4WEH10F20B/6EW220-50NTZ5

4WE6M61B/CG12NDL 4WEH10F20B/6EW220-50NTZ5L

4WE6M61B/CG12NK4 4WEH10F20B/6EW220-50NZ4

4WE6M61B/CG24N9DKL 4WEH10F20B/6EW220-50NZ5

4WE6M61B/CG24N9DL 4WEH10F20B/6EW220-50NZ5L

4WE6M61B/CG24N9K4 4WEH10G20B/6AW220-50NETZ4

4WE6M61B/CG24NDKL 4WEH10G20B/6AW220-50NETZ5

4WE6M61B/CG24NDL 4WEH10G20B/6AW220-50NETZ5L

4WE6M61B/CG24NK4 4WEH10G20B/6AW220-50NEZ4

4WE6M61B/CW220-50N9DKL 4WEH10G20B/6AW220-50NEZ5

4WE6M61B/CW220-50N9DL 4WEH10G20B/6AW220-50NEZ5L

4WE6M61B/CW220-50N9K4 4WEH10G20B/6AW220-50NTZ4

4WE6M61B/CW220-50N9Z5L 4WEH10G20B/6AW220-50NTZ5

4WE6M61B/CW220-50NDKL 4WEH10G20B/6AW220-50NTZ5L

4WE6M61B/CW220-50NDL 4WEH10G20B/6AW220-50NZ5

4WE6M61B/CW220-50NK4 4WEH10G20B/6AW220-50NZ5L

4WE6P50B/AG24N         4WEH10G20B/6EW220-50NETZ4

4WE6P50B/AW220-50N 4WEH10G20B/6EW220-50NETZ5

4WE6P50B/BG24N         4WEH10G20B/6EW220-50NETZ5L

4WE6P50B/BW220-50N 4WEH10G20B/6EW220-50NEZ4

4WE6P61B/CG12N9DKL 4WEH10G20B/6EW220-50NEZ5

4WE6P61B/CG12N9DL 4WEH10G20B/6EW220-50NEZ5L

4WE6P61B/CG12N9K4 4WEH10G20B/6EW220-50NTZ4

4WE6P61B/CG12N9Z4 4WEH10G20B/6EW220-50NTZ5

4WE6P61B/CG12N9Z5 4WEH10G20B/6EW220-50NTZ5L