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.

　　導軌油粘度與國際GB7632:《機床潤滑劑的選擇》的兩種導軌油l-g68、l-g150(相當于舊號)。40、90)、l-hg32、l-hc68(相當于舊號粘度是相等的。在選擇導軌油時，應考慮以下因素:根據(jù)導軌的滑動速度和平均壓力選擇潤滑油粘度。同時用作液壓介質導向油。根據(jù)國內外機床導軌潤滑的實際應用情況，選用潤滑油。但根據(jù)國際慣例，導軌潤滑選用國外機床導軌油。在導軌潤滑劑的選擇上，也可以參考國外現(xiàn)有機床THK導軌潤滑的實際應用實例進行選擇。如臥式車床、鉆床、銑床選用l-hl32、l-hl46液壓油;磨床、外圓磨床、內圓磨床、平面磨床均采用l-hg32 ~ l-hg68液壓油等。然而，在鋼軌維修中如何需求導軌的一切!

　　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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