How to maintain the linear guideway of grinding machine? The linear guideway is very large when used in all walks of life, because what we maintain is different in different working environment; like the professional linear guideway grinding machine and grinder, we often guide the supply of hydraulic system for lubricating oil import, and the requirements for hydraulic system are high, which must be met. At this time, the imported guideway, The viscosity of hydraulic lubricating oil (50 ℃) should be low (20-40mm2 / s), that is, the viscosity of hydraulic system is required. Therefore, we need to maintain the linear guide rail of grinder from the viscosity of hydraulic system: choose the viscosity of guide rail oil according to the sliding speed and average pressure.

　　导轨油粘度与国际GB7632:《机床润滑剂的选择》的两种导轨油l-g68、l-g150(相当于旧号)。40、90)、l-hg32、l-hc68(相当于旧号粘度是相等的。在选择导轨油时，应考虑以下因素:根据导轨的滑动速度和平均压力选择润滑油粘度。同时用作液压介质导向油。根据国内外机床导轨润滑的实际应用情况，选用润滑油。但根据国际惯例，导轨润滑选用国外机床导轨油。在导轨润滑剂的选择上，也可以参考国外现有机床THK导轨润滑的实际应用实例进行选择。如卧式车床、钻床、铣床选用l-hl32、l-hl46液压油;磨床、外圆磨床、内圆磨床、平面磨床均采用l-hg32 ~ l-hg68液压油等。然而，在钢轨维修中如何需求导轨的一切!

　　Viscosity of guide rail oil and two kinds of guide rail oil l-g68 and l-g150 recommended in gb7632: selection of machine lubricant (equivalent to the old one). 40, 90), l-hg32, l-hc68 (equivalent to the old viscosity is the same. When selecting guide oil, the following factors shall be considered: the viscosity of lubricating oil shall be selected according to the sliding speed and average pressure of guide. It is also used as hydraulic medium guide oil. According to the actual application of machine tool guide rail lubrication at home and abroad, lubricating oil is selected. However, according to international practice, the guide rail lubricating oil of foreign machine tools is selected. In the selection of guide rail lubricant, we can also refer to the actual application of THK guide rail lubrication in foreign machine tools. For example, l-hl32, l-hl46 hydraulic oil is used for horizontal lathe, drilling machine and milling machine; l-hg32 ~ l-hg68 hydraulic oil is used for universal grinder, external grinder, internal grinder and plane grinder. However, in rail maintenance, how to need all the guide rail!

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