Extreme pressure lubricating grease and preparation method thereof

Abstract

The preparation method specifically comprises the following steps: S1, burdening, S2, primary reaction, S3, secondary reaction, and S4, sequentially adding an anti-adhesion composition, water, an extreme pressure agent and a pour point depressant weighed in the step S1 into reaction equipment in the step S3, stirring for 15-20 minutes, dehydrating, continuously heating to 220 DEG C to form viscous paste, and cooling to room temperature to obtain the extreme pressure lubricating grease. The invention relates to the technical field of lubricating grease. According to the extreme pressure lubricating grease and the preparation method thereof, the anti-adhesion effect of the lubricating grease can be improved on the basis of ensuring high temperature resistance, high pressure resistance and aging resistance of the lubricating grease, and the purpose of reducing the adhesion of the lubricating grease by adding an anti-adhesion composition and a high-carbon organic matter into the lubricating grease is well achieved; the lubricating grease is prevented from being unevenly adhered to a smeared mechanical structure in a large area, the compression resistance and the high temperature resistance of the lubricating grease are guaranteed, and the aging time and the service life of the lubricating grease are prolonged.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to an extreme pressure lubricating grease and a preparation method thereof. Background technique [0002] Grease refers to a thick grease-like semi-solid, which is used for the friction part of the machine to lubricate and seal. It is also used on metal surfaces to fill voids and prevent rust. It is mainly made of mineral oil (or synthetic lubricating oil) and thickener, metal soap, and metal soaps such as potassium, barium, lead, and manganese are also used. Graphite, carbon black, asbestos and synthetic (such as polyurea base, bentonite) are used as the thickener of non-soap base grease. According to the application, it can be divided into two types: general grease and special grease. The former is used for general mechanical parts, The latter is used in tractors, railway locomotives, ship machinery, oil drilling machinery, valves, etc. The main quality indicators ar...

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Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the present invention provides a kind of extreme pressure grease and its preparation method, which solves the problem of the existing extreme pressure grease in order to improve the The anti-pressure and high-temperature performance, as well as prolonging the aging time and service life of the grease, will add a large amount of mineral components to the grease composition, which will cause the extreme pressure grease to be prone to large-area unevenness in the actual use process The sticking on the applied mechanical structure will not only fail to achieve the lubricating effect, but will also lead to greater churning loss of the mechanical structure and loss of power. On the basis of improving the anti-adhesion effect of grease, the problem of reducing the adhesion of grease by adding anti-adhesion composition and high-carbon organic matter to the grease cannot be achieved. At the same time, the reaction kettle used in the existing preparation method is sealed The effect is poor, which seriously affects the reaction and mixing of the reactants in the reactor. It is impossible to enhance the sealing effect of the reactor by improving the seal of the reactor, and it is impossible to achieve the purpose of sealing the reactor simply and quickly. Therefore, it is very unfavorable for the preparation of extreme pressure grease

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