High-temperature lubricant for thermal simulation experiment and preparation method thereof

Abstract

The invention discloses a high-temperature lubricant for a thermal simulation experiment and a preparation method of the high-temperature lubricant, and belongs to the technical field of lubricants. The invention overcomes the defects of poor high-temperature performance stability and the like of the existing lubricant, and provides a high-temperature lubricant for thermal simulation experiments,which comprises the following raw materials in parts by weight: 560-780 parts of graphite powder, 200-300 parts of mineral oil, 5-200 parts of nickel powder and 50-100 parts of lithium soap. Graphitepowder serves as a matrix and is converted into graphite emulsion through mineral oil, then nickel powder is added, grinding treatment is conducted through a high-speed dispersion ball mill, finally,lithium soap is added, grinding is conducted, and the lubricant is prepared. The lubricant provided by the invention provides good lubrication for the end part of a sample during a thermal simulationexperiment, and especially during high-temperature compression, the friction force of the end part of the sample is reduced, so that the experiment result is more accurate.

Description

technical field [0001] The invention belongs to the technical field of lubricants, and in particular relates to a high-temperature lubricant for thermal simulation experiments and a preparation method thereof. Background technique [0002] The physical simulation experiment of metal materials is an indispensable link in the study of material properties and the development of new material preparation processes, among which material thermal simulation is the basic means of physical simulation. At present, only Gleeble thermal simulation equipment has reached 200 units nationwide. Taking Panzhihua Iron and Steel's thermal simulation equipment as an example, the experiment of thermal simulation equipment has reached saturation, and the equipment maintains an average working time of 10 hours a day, which consumes a lot of high-temperature lubricants. [0003] The general process of material thermal simulation is to apply a certain load and current to the experimental sample thro...

AI Technical Summary

Problems solved by technology

During the deformation process of the sample, there is a large frictional resistance between the two ends of the sample and the indenter, which affects the accuracy of the force measurement of the experimental results

In order to solve the above problems, MoS is generally used at present 2 Or carbon powder is used as the lubricant at the end. When the sample and the indenter are connected horizontally, these two solid lubricants are extremely inconvenient to use, and molybdenum disulfide reduces friction at low temperature and increases friction at high temperature, which affects the results of high temperature experiments.