Cold rolling oil suitable for single stand reversing mill for producing high-strength steel product

Abstract

The invention relates to cold rolling oil suitable for a single stand reversing mill for producing a high-strength steel product. The cold rolling oil is prepared from the following components in percentage by mass: a) 30-70% of base oil A which is ester generated by a reaction of pentaerythritol and fatty acid with 12-18 carbon numbers; b) 5-30% of base oil B which is ester generated by a reaction of dipentaerythritol and fatty acid with 12-18 carbon numbers; c) 5-25% of base oil C which is ester generated by a reaction of pentaerythritol and dimer acid; d) 1-4.5% of an emulgator which is a composition of a nonionic emulgator and cationic emulgator; e) 0.5-6.5% of an extreme pressure antiwear additive which is phosphate; f) 0.5-1.5% of an antioxidant which is hindered phenols or an arylamine antioxidant; and g) 1-2.5% of an antirust agent which is fatty acid matter. The cold rolling oil suitable for the single stand reversing mill for producing the high-strength steel product has thelubricating property needed to meet high-strength steel production, and has the advantages that oil-smoke and irritant peculiar smell which are emitted during production are obviously reduced.

Description

technical field [0001] The invention relates to the technical field of cold rolling, in particular to a rolling oil product for high-strength steel cold rolling production in a single stand. Background technique [0002] With the development of iron and steel technology, more and more iron and steel metallurgical products are developing towards high-strength technology. The latest generation of high-strength steel products in Hyundai has reached the strength of 1200-1500MPa. Due to the substantial increase in the characteristics of steel materials and strength levels, For this type of steel, in the traditional hot rolling and cold rolling production process, it is difficult to produce more than the design limit of rolling; ) The single-stand rolling mill performs reciprocating multi-pass production. For the sake of production efficiency, the maximum rolling speed in the production of a single-stand rolling mill is usually above 700m / min. At this time, due to the extremely hi...

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Problems solved by technology

[0004] CN1130780.3 (a cold-rolled thin steel rolling oil composition), this technical feature is to use hydrocracked mineral oil as the main base oil for production, and can obtain cold-rolled thin steel household rolling oil with excellent annealing performance , but because the mineral oil used in this technology will have a lot of volatilization and thermal cracking in the range of 150-170 °C described in this technology, so the rolling oil will have the risk of failure, so it is not suitable for the stand-alone machine described in this technology Production of high-strength steel

[0005] CN201110362524.1 (a rolling oil composition for a double-stand reversible rolling mill), proposes a rolling oil suitable for a reversible rolling mill, which mainly uses a ratio of up to 70-95% polyol ester oily agent , and nonylphenol polyoxyethylene ether, a large proportion of 0.1-10% sulfide extrusion anti-wear agent, although this type of rolling oil can provide excellent lubricity, but at a high temperature of 150-170 ° C, The emulsion will be heated, and the thioether additive used has a great irritating odor. When it is sprayed on the strip during production, the irritating volatile smoke generated in an instant will negatively affect the working environment of the unit operators.

[0006] CN101434886A (a rolling oil composition for a twelve-high reversing mill), mainly used 60-70% neopentyl polyol ester, 14-28% mineral oil and 1-5% vulcanized vegetable oil and vulcanized Animal oil, this technology uses a certain amount of mineral oil and sulfide, and there is also the problem mentioned above in the high temperature section of 150-170 ℃, that is, the large amount of volatilization of mineral oil causes the consumption of rolling oil during production to be fast, and it will emit sulfide. The special irritating odor of the substance has a negative impact on the production staff

[0007] From the above content, for single-stand reversing cold rolling mills, in the process of producing high-strength steel, the existing cold-rolling rolling oils have various technical deficiencies and are difficult to meet the needs of high-strength steel cold-rolling production.

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