How to prolong the service life of metallurgical equipment?

How to prolong the service life of metallurgical equipment? 2019 - 02 - 28 as far as possible with lubricating oil film lubrication is the most important is to separate friction pair, the temperature has enormous influence on the viscosity of lubricating oil, if can not be separated, will need to use EP/AW additive to reduce friction. The nature of the lubricating oil film is not static, to deal with the risks of lubricating oil change, then how to ensure the oil film is in good condition? In the recently held in 2018 the national metallurgical equipment hydraulic lubrication pneumatic technology exchange meeting, SKF ( China) Sales co. , LTD. Share the SKF application engineering experts guo-jiang zhang metallurgical equipment life extension principle and case. Guo-jiang zhang said steel equipment 'held a great, high, more than four,' the characteristics of a large: the equipment is big; Three highs: high reliability requirements, equipment, high value, high safety requirements; Four: conveying of dust, water and water vapor, run, run, drip, leak, production equipment condition change much; Low: low circulating oil system reliability allocation. According to the characteristics of the steel and iron equipment, guo-jiang zhang, for example, to answer before the furnace heat transfer roller with grease? Using the same set of lubrication system for lubrication, if there is a failure? Study found that because of high temperature, if use the same set of lubrication system for lubrication, will cause the bearing life is short, the consumption of large and grease lubrication system easy to jam, etc. This needs the improvements on the lubrication, first of all need to close the furnace end bearing temperature control, especially the evaluation and optimization of cooling measures, including water, pipe and bearing seat on the insulating layer. Second near the furnace end bearing lubricant, it is necessary to choose suitable lubricant; Best again in two sets of lubrication system for lubrication, after high temperature region of the lubrication system pipeline must take water jacket or take insulation layer; Finally almost furnace side of fatliquoring structure into a face into fat. Guo-jiang zhang share another case is the bar wire drawing machine gear box, the application of the grease lubrication ( As shown in the above) Use oil bath lubrication, gear box, the output speed is very slow, and frequent start-stop, material temperature field near to go along with temperature change is great, such a case only 3 - the life of the gear box 6 months, analyze the main reason for water vapor, iron oxide red from position and seal to enter, there is pollution caused by gear, and blue position of bearing lubrication is not in place. In order to improve the life of gear box, do the following technical transformation: 1, oil bath lubrication instead focus cycle lubricating oil, system equipped with filtering, water removal equipment; 2, blue bearing position structure was improved, increasing tubing to go all the way to the lubrication; 3, after high temperature of tubing in the lubrication system with cooling jacket cooling water, water jacket wrapped insulation layer; 4, will be united red vent received the clean air to breathe, install 3 um air breather valve. Finally, guo-jiang zhang concluded, the thickness of lube film is the most basic requirement, good lubrication under the operating temperature of lubricant viscosity and the relationship between the thickness of lube film is very relevant. Steel mills can be lubrication technical reformation to improve equipment reliability and keep the lubricating oil lubrication 'clean'. （ Source: the equipment)