Lubricating oil for cold rolling of tubular products and preparation method of lubricating oil

Abstract

The invention relates to lubricating oil for cold rolling of tubular products and a preparation method of the lubricating oil. The preparation method comprises the steps of firstly weighing 5-60 parts of base oil and 2-35 parts of oxidized vegetable oil in parts by weight, adding the base oil and the oxidized vegetable oil into a container provided with a stirring device and a heating device, stirring at a heating state, adding 0.5-20 parts of vegetable oil, 1-10 parts of an oxidant, 0.1-20 parts of an oily lubricant, 0.2-15 parts of an extreme pressure anti-wear reagent and 0.1-15 parts of an anti-rusting agent, continuing to heat and stir, controlling the heating temperature, heating time and stirring speed during the heating and the stirring, adding 1-15 parts of a surfactant, heating, stirring, controlling the heating temperature, heating time and stirring speed during the heating and the stirring, cooling, and discharging, so as to obtain the lubricating oil for the cold rolling of the tubular products. The lubricating oil has the beneficial effects that the extreme pressure wear resistance is excellent; process links are few, and the comprehensive rolling cost is low; and the process flow is simple, and the process requirements are not strict.

Description

technical field [0001] The invention belongs to the technical field of easy-to-clean steel pipe cold-rolling lubricating oil and its preparation, and in particular relates to an anti-rust lubricating oil for pipe cold-rolling and also relates to a preparation method thereof. Background technique [0002] Lubricating oil is usually used for lubrication during the cold rolling of seamless tubes such as bearing steel, low carbon steel, high carbon steel, stainless steel and nickel-based alloy steel, and the tube needs to be cleaned after cold rolling , to remove the oil stains attached to the inner and outer walls of the pipe during cold rolling. [0003] In the prior art, before rolling steel pipes, it is usually necessary to pickle or polish the tube billet to remove the oxide skin on the surface of the tube billet, and then go through phosphating and saponification, and then enter rolling. Generally, ordinary mechanical oil is used for rolling. . Although ordinary mechanic...

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Problems solved by technology

Although these two patents are not limited to examples, although they can objectively realize the technical effects recorded in their specifications, they are not as good in terms of extreme pressure and anti-wear performance, non-corrosive and easy-to-clean performance to equipment and pipes, and long-lasting cycle life. Failure to meet industry expectations is a common practice