Rolling oil composition for 12-roller reversing mill

Abstract

The invention relates to a rolling oil composition used for a twelve-high reversing cluster mill; the rolling oil composition belongs to the field of metallurgical steel rolling oil products, and comprises the components according to weight percent as follows: 60-70 percent of compound neopentyl polyol ester, 14-28 percent of mineral oil, 1-5 percent of phosphorus-containing extreme-pressure and anti-wear agent, 1-5 percent of sulfur-containing extreme-pressure and anti-wear agent, 2-12 percent of compound emulsifier, 1-3 percent of anti-rust agent, 1-3 percent of antioxidant and 0.01-0.5 percent of defoamer; the rolling oil composition takes the compound neopentyl polyol ester synthetic ester with excellent lubricating performance as the lubricating basic component; an oiliness agent main body with high lubricating performance and high extreme-pressure and anti-wear performance is composed by adding the scientific components of the phosphorus-containing and the sulfur-containing extreme-pressure and anti-wear agents; and the anti-rust performance and the emulsion stability are ensured by adopting the mineral oil, the anti-rust oil, the emulsifier and the antioxidant with the appropriate proportion for coordination, thereby creatively solving the contradiction between the lubricating performance and the detergence, ensuring the requirements on the lubricating performance of the quality when rolling steel plates with thin specifications, protecting the lubricating requirements of back-up bearings and ensuring the volatility and the annealing detergence under the cleaning-free condition.

Description

technical field [0001] The invention relates to a rolling oil composition for a 12-high reversible rolling mill, which belongs to the field of oil products for metallurgical rolling mills, and in particular relates to an oil for a 12-high reversible rolling mill. Background technique [0002] In recent years, with the development of the national economy, the demand for cold-rolled ultra-thin steel plates less than 0.3mm has increased sharply, and the traditional four-roll or six-roll mills are generally difficult to meet the rolling requirements due to their own conditions. The newly developed domestic The 1450mm twelve-high reversing rolling mill with multiple independent intellectual property rights can roll high-precision, high-hardness ultra-thin steel plates under a small rolling force. Higher requirements are also put forward for the applied rolling oil, and the existing rolling oil cannot meet the requirements. For example, in a steel company's cold-rolled sheet plant...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the development of the national economy, the demand for cold-rolled ultra-thin steel plates less than 0.3mm has increased sharply, and the traditional four-roll or six-roll mills are generally difficult to meet the rolling requirements due to their own conditions. The newly developed domestic The 1450mm twelve-high reversing rolling mill with multiple independent intellectual property rights can roll high-precision, high-hardness ultra-thin steel plates under a small rolling force. Higher requirements are also put forward for the applied rolling oil, and the existing rolling oil cannot meet the requirements. For example, in a steel company's cold-rolled sheet plant, it will be suitable for four-high or six-high high-speed rolling mills. An imported rolling oil C with high saponification value (greater than 190mgKOH / g) mainly used animal and vegetable oils as oily agents was used in a twelve-high reversing rolling mill. Practice has proved that although this rolling oil C can fully meet the Lubrication requirements for bearings, but it causes over-lubrication on the rolled steel plate, problems such as broken belt, steel plate deviation, and even rolling mill vibration. Even if the concentration is reduced, the problem cannot be solved fundamentally, but it leads to poor rust prevention and other question

In addition, since rolling oil C mainly uses animal and vegetable oils as oily agents, it has a high saponification value, but the low volatility of animal and vegetable oils affects the cleanliness of the rolled plate surface after annealing, and it is easy to solidify in winter. It is inconvenient, the splashed emulsion will separate oil and solidify around the rolling mill, which will affect the cleanliness of the rolling mill. If the concentration is reduced, it will not solve the problem, but will lead to other problems such as poor anti-rust performance. Therefore, it is urgent to develop suitable for twelve Special rolling oil products for roll reversing mills