METHOD DEVELOPMENT OF ARTIFICIAL LUBRICANTS AGING FOR CONDITIONS MAXIMAL CLOSE TO REAL CONDITIONS OF OPERATION OF HOT ...

DOI: 10.6060/tcct.20165912.5498
Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2016. V. 59. N 12. P. 112-117

METHOD DEVELOPMENT OF ARTIFICIAL LUBRICANTS AGING FOR CONDITIONS MAXIMAL CLOSE TO REAL CONDITIONS OF OPERATION OF HOT AND COLD
ROLLING MILLS
This work aims are analysis of existing test methods of rolling mills lubricants quality assessing and development of a new aging lubricants bench test to assess the in-service be-havior of bearing oils for steel rolling mills. Test methods were used: Standard test method for water in crude oils by coulometric Karl Fischer titration ASTM D 4928-00; Standard test method for oxidation characteristics of inhibited mineral oils ASTM D 943; Standard test method for oxidation stability of steam turbine oils by rotating pressure vessel (RPVOT) ASTM D2272; Standard test method for acid number of petroleum by potentiometric titration ASTM D 664; Standard test method for kinematic viscosity of transparent and opaque liquids and calculation of dynamic viscosity ASTM D 445; Standard practice for calculating viscosi-ty index from kinematic viscosity at 40 and 100°C; Standard test method for condition moni-toring of oxidation in in-service petroleum and hydrocarbon based lubricants by trend analy-sis using Fourier transform infrared (FT-IR) Spectrometry ASTM D 7414; Standard test method for condition monitoring of nitration in In-service petroleum and hydrocarbon-based lubricants by trend analysis using Fourier transform infrared (FT-IR) spectrometry ASTM D 7624; Standard test methods for saponification number of petroleum products ASTM D 94; Standard test method for density, relative density (specific gravity), or API gravity crude pe-troleum and liquid petroleum products by hydrometer method ASTM D 1298. It has been found that all existing standards of bearing lubricants testing usually are poorly correlated with real-life lubricant behavior in rolling mills. The project of new bench test development was started in order to obtain information regarding bearing lubricants alteration process and determinate optimal the lubricant drain interval. The article describes main idea and first results of the aging lubricants bench test. The results can be used to develop and optimize rolling mills lubricants formulations as well as formulations of other high demulsibility indus-trial products.

Key words: rolling mills lubricants, demulsibility, ASTM 2711, ASTM 1401, ASTM 943, dynam-ic demulsibility endurance, Clark Laboratory

REFERENCES
1. Binyon S.J. Improved additives for demulsification and recovery of waste oils. Oil and Petrochemical Pollution. 1984. V. 2. N 1. P. 57-60. DOI: 10.1016/S0143-7127(84)90733-6.
2. Betsy B., Herrero F. Rolling Forward. Lubes and Greases Magazine. 2011. May. [Electronic resource]. Access mode: http://www.lubesngreases.com.
3. STO 05744403-072-2012 Circulating oil for oil film bearings. "EZTM" JSC (in Russian).
4. Morgoil Advanced specification. [Electronic resource] - http://www.sms-siemag.com/download/SN180-4_2009-07_E.pdf.
5. Danieli lubricant specification # 6.075167.S. Oil Specification for No Twist Rolling Mill equipment (BGV-TMBTFS-ESS) with plain and roll bearings systems, gears and high water in oil pollution [Electronic resource]. Access mode: http://www.danieli.com.
6. Bulyzhnikova Е.М., Kokorin V.N., Titov Yu.A., Grigoriev A.A. Rolling mills. Technological maintenance of the rolling pro-cess, a new generation of high-performance systems of large volumes of technological fluids and wastewater purification. Ulyanovsk: UlSTU. 2009. 186 p. (in Russian).
7. Lovrić M., Grafl A., Berger B., Ostrowski J., Adam K., Pertl B. Impact of water quality on the water separability of an industri-al oil. MATRIB 2013. Croation Society for Materials and Tribology. Vela Luka (CR). 2013. 34 p.

2016, Т. 59, № 12, Стр. 112-117

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