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Lubricating oil composition for wide steel strip hot continuous mill rolling process

A lubricating oil composition and technology for hot continuous rolling mills, applied in the field of rolling lubricants, can solve problems such as roll surface scratches, poor lubricating ability, and cooling water pollution, and achieve good lubricating effect, good lubricity, and no precipitation Effect

Inactive Publication Date: 2003-08-13
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the common disadvantages of these two patents are that under the condition of high temperature and high pressure hot rolling, the lubricating ability is poor, and it is easy to emulsify in water, and there will be scratches on the surface of the roll or strip steel and pollution to the cooling water.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Take 64 grams of 500SN neutral oil, 2 grams of tricresyl phosphate, 28 grams of oleic acid dimer acid neopentyl glycol ester, and place titanium dioxide nanoparticles of 4 grams of isooctanoic acid in the same container, heat to 75 ° C and stir for 25 minutes, After the solution is mixed evenly, add 1.5 grams of barium petroleum sulfonate and 0.3 grams of 2.6-di-tert-butyl-p-cresol, keep the temperature at 75°C, and continue stirring until the solid matter is completely dissolved to obtain a transparent solution, which is the product.

Embodiment 2

[0050] Take 60 grams of 150BS bright stock, 2 grams of di-n-butyl phosphite, 32 grams of refined rapeseed oil, and 4 grams of titanium dioxide nanoparticles of oleic acid, put them in the same container and heat to 85°C, stir for 30 minutes, and wait until the solution is evenly mixed , then add 1.5 grams of barium dinonylnaphthalene sulfonate and 0.5 grams of phenyl-α-naphthylamine, and continue to heat and stir until the solid is dissolved and the solution is transparent.

[0051] Taking Example 1 and Example 2 as the composition of the present invention, for the purpose of comparison, the reference substance is the lubricant that is being used in a hot strip rolling mill, which is specified as composition B. Composition B is mainly composed of mineral oil, synthetic ester, sulfur-containing extreme pressure agent and phenolic antioxidant. Its physical properties are similar to those of the compositions of the present invention.

[0052] Falex Lubricity Evaluation (GB / T0187...

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Abstract

A lubricating oil composition for hot tandem rolling of wide steel band contains a component (d) composed of a surface layer which is dialkylbithiophosphoric acid or monocarboxy fatty acid, and a kernel which is the nano TiO2 particle. Its advantages are excellent lubricating performance, high resistance to emulsifying, and no deposition and demixing.

Description

field of invention [0001] The invention relates to a lubricating oil composition, which is especially suitable for a rolling lubricant of a common carbon steel wide strip hot rolling mill. Background technique [0002] During the hot rolling process of wide-band steel, the roll is in contact with the rolled piece at a temperature of about 1000°C, and is cooled by spraying a large amount of cooling water. At the same time, it bears the huge rolling pressure caused by the plastic deformation of the steel plate. Under this condition , The surface of the work roll is prone to cracks and severe wear, and even defects such as peeling and peeling may occur. In order to ensure product quality, lubricated rolling can obtain the following benefits: [0003] 1) Improve the surface condition of the roll [0004] Under hot rolling conditions, the work roll and the strip contact with the cooling water of the cooling roll to form Fe 3 o 4 , Fe 2 o 3 Such as very hard oxides, which st...

Claims

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Application Information

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IPC IPC(8): C10M137/10
Inventor 胡汉国
Owner CHINA PETROCHEMICAL CORP
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