A kind of high temperature resistant liquid metal extreme pressure lubricant and preparation method thereof
An extreme pressure lubricant, liquid metal technology, applied in the directions of lubricating compositions, chemical instruments and methods, base materials, etc., can solve problems such as weak extreme pressure resistance, and achieve comprehensive performance improvement, good lubricity, and comprehensive performance improvement. Effect
Active Publication Date: 2021-02-02
YUNAN JINGCHUANG LIQUID METAL THERMAL CONTROL TECH RES & DEV CO LTD
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- Description
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- Application Information
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Problems solved by technology
[0008] In order to overcome the shortcomings of existing lubricating oils with weak extreme pressure resistance, the present invention provides a high temperature resistant liquid metal extreme pressure lubricant
Method used
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Embodiment 1
[0038] This embodiment provides an extreme pressure lubricant, which is prepared from a liquid metal alloy of Ga and In, wherein the mass fractions of each element are 90% Ga and 10% In;
[0039] Its thermal conductivity was measured to be 31W / (m·K).
Embodiment 2
[0041] This embodiment provides an extreme pressure lubricant prepared from a liquid metal alloy of Ga and In, wherein the mass fractions of each elemental substance are 80% Ga and 20% In respectively.
[0042] Its thermal conductivity was measured to be 30.5 W / (m·K).
Embodiment 3
[0044] This embodiment provides an extreme pressure lubricant, which is prepared from a liquid metal alloy of Ga and Zn, wherein the mass fractions of each element are 96.4% Ga and 3.6% Zn respectively.
[0045] Its thermal conductivity was measured to be 30.68W / (m·K).
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Abstract
The invention relates to a high-temperature resistant liquid metal extreme pressure lubricant and a preparation method thereof; it is prepared from gallium-based liquid metal with thermal conductivity higher than 30W / (m·K). The extreme pressure lubricant can be used stably for a long time under a load of up to 10kN without any signs of sticking, and the critical wear load far exceeds that of traditional organic lubricants; it has high critical wear load, low wear rate and friction coefficient, excellent heat dissipation and high temperature stability; and the preparation method of the extreme pressure lubricant is simple.
Description
technical field [0001] The invention belongs to the technical field of industrial lubricants, in particular to a high-temperature resistant liquid metal extreme pressure lubricant and a preparation method thereof. Background technique [0002] Friction is ubiquitous in physical systems, and usually involves complex physical processes and chemical reactions, among which heat generation is a widely concerned phenomenon. From drilling wood for fire in ancient times to friction welding in the modern aviation industry, frictional heat has been continuously utilized by humans to serve our lives. At the same time, frictional heat dissipates a large amount of energy and poses a great threat to the reliability of components. For example, in extremely high-speed and high-load friction pairs (such as bearings), frictional heat may cause melting and welding of the friction interface , producing "gluing" with catastrophic consequences for the mechanical system. In order to avoid gluing...
Claims
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IPC IPC(8): C10M103/04C10M177/00C09K5/10C10N30/06C10N30/08C10N40/02C10N40/04C10N40/25
CPCC09K5/10C10M103/04C10M177/00C10N2030/06C10N2030/08C10N2040/02C10N2040/04C10N2040/25
Inventor 张海洋鄢顺才任文兵何霄盛磊刘静
Owner YUNAN JINGCHUANG LIQUID METAL THERMAL CONTROL TECH RES & DEV CO LTD