杭州拱墅西湖shell殼牌液壓油-導(dǎo)軌油經(jīng)銷潤(rùn)滑油批發(fā)美孚齒輪油，液壓油，潤(rùn)滑脂，導(dǎo)軌油，壓縮機(jī)油，切削油，金屬加工油，切削液，針織機(jī)油，高溫鏈條油，主軸油等在GB/T7631.2一87分類中的HH、HL、HM、HR、HⅤ、HG液壓油均屬礦油型液壓油,這類油的品種多,使用量約占液壓油總量的85以上 ,汽車與工程機(jī)械液壓系統(tǒng)常用的液壓油也多屬這類。 以下分別介紹其規(guī)格、性能及其應(yīng)用。 l.HH液壓油 按GB 7631.2一87分類,HH液壓油是一種不含任何添加劑的礦物油。這種油雖己列入分類之中,但在液壓系統(tǒng)中己不使用。因?yàn)檫@種 油安定性差、易起泡,在液壓設(shè)備中使用壽命短Lubricating oil wholesale Mobil gear oil, hydraulic oil, lubricating grease, guide oil, compressor oil, cutting oil, metal processing oil cutting fluid, knitting machine oil, high temperature chain oil, spindle oil, etc. In GB/T7631.2-87 classification, HH, HL HM, HR, HV, HG hydraulic oils are all mineral oil type hydraulic oils. This kind of oil has many varieties and the usage amount accounts for more than 8% of the total amount of hydraulic oil. The hydraulic oil commonly used in automobile and engineering machinery hydraulic system also mostly belongs to this kind. The specifications, properties and applications of are introduced below