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An extreme pressure anti-wear lubricant

An extreme pressure anti-wear and lubricant technology, applied in lubricating compositions, petroleum industry, etc., can solve the problems of high friction coefficient value at high temperature, low maximum extreme pressure value, difficulty in meeting the requirements of high load lubrication, etc., and achieve good lubrication effect of effect

Inactive Publication Date: 2017-11-14
NANHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese invention patent 200910053842.2 discloses an environment-friendly high-temperature lubricant for metal thermoplastic processing. It is made of 1 to 20 times the weight of water. Although the environment-friendly high-temperature lubricant for metal thermoplastic processing has a good lubricating effect, with the development of science and technology, the speed of equipment is getting higher and higher, and the load on the moving parts of the machine Higher and higher, the above-mentioned environmentally friendly high-temperature lubricants for metal thermoplastic processing have exposed the following disadvantages: 1. The high-temperature friction coefficient value is too high, and its high-temperature lubrication performance needs to be strengthened
2. The maximum extreme pressure value that the lubricant can withstand is low, and it is difficult to meet the current requirements for high-load lubrication of equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0024] As an embodiment of the present invention, an extreme pressure anti-wear lubricant, the weight ratio of its components is: component A: 0.1-3%, component B: 8-35%, component C: 2% ~6%, group D: 0.5~5%, component E: 0.5~4%; component F: 0.5~4%, component G: 0.8~4%, component H: 0.2~1%, balance for water;

[0025] The component A is one or a mixture of sodium carboxymethylcellulose and xanthan gum;

[0026] The component B is one or a mixture of talcum powder and bentonite;

[0027] The component C is sodium silicate;

[0028] The component D is a mixture of sodium fluoroborate, borax decahydrate, calcium metaborate or two / three;

[0029] Described component E is the one in zinc stearate, lithium stearate;

[0030] The component F is one of nano fullerenes and alkaline sulfonates;

[0031] The component G is sodium polyacrylate;

[0032] The component H is an aqueous defoamer.

[0033] As a preferred embodiment, the proportion by weight of the components of the ext...

Embodiment 1

[0049] At normal temperature and pressure, add components A to H into water according to the weight ratio of the following components, and then stir for 1 hour to obtain the extreme pressure anti-wear lubricant of Example 1. In this example, The resulting EP antiwear lubricant is a white cream.

[0050] The weight proportion of each component is:

[0051] Component A: 0.1%, Component B: 8%, Component C: 2%, Component D: 0.5%, Component E: 4%; Component F: 4%, Component G: 4%, Component H: 1%, the balance is water;

[0052] Component A is sodium carboxymethylcellulose;

[0053] Component B is bentonite;

[0054] Component C is sodium silicate;

[0055] Component D is calcium metaborate;

[0056] Component E is lithium stearate;

[0057] Component F is alkaline sulfonate;

[0058] Component G is sodium polyacrylate;

[0059] Component H is an aqueous defoamer.

[0060] Thereafter, the obtained extreme pressure and antiwear lubricant was divided into two parts, one part wa...

Embodiment 2

[0063] Embodiment 2 is compared with embodiment 1, only the weight ratio of each component changes, and other contents are identical, and the weight ratio of each component of embodiment 2 is as follows:

[0064] Component A: 3%, Component B: 35%, Component C: 6%, Component D: 5%, Component E: 0.5%; Component F: 0.5%, Component G: 0.8%, Component H: 0.2%, the balance is water;

[0065] The component A is sodium carboxymethylcellulose;

[0066] Component B is bentonite;

[0067] Component C is sodium silicate;

[0068] Component D is calcium metaborate;

[0069] Component E is lithium stearate;

[0070] Component F is alkaline sulfonate;

[0071] Component G is sodium polyacrylate;

[0072] Component H is an aqueous defoamer.

[0073] Thereafter, the obtained extreme pressure and antiwear lubricant was divided into two parts, one part was used to test the high temperature friction coefficient, and the other part was used to test the extreme pressure value according to GB...

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Abstract

The invention provides an extreme-pressure anti-wear lubricant, which relates to the technical field of high-temperature lubricants. The weight ratio of its components is: component A: 0.1-3%, component B: 8-35%, component C : 2~6%, group D: 0.5~5%, component E: 0.5~4%; component F: 0.5~4%, component G: 0.8~4%, component H: 0.2~1%, The balance is water; component A is sodium carboxymethyl cellulose, xanthan gum or a mixture of two; component B is talcum powder, bentonite or a mixture of two; component C It is sodium silicate; component D is sodium fluoroborate, borax decahydrate, calcium metaborate or a mixture of two / three; component E is one of zinc stearate and lithium stearate; component F is one of nano-fullerene and alkaline sulfonate; component G is sodium polyacrylate; component H is water-based defoamer; its high-temperature friction coefficient is extremely low and its lubrication performance is excellent, which can Fully meet the lubrication requirements of current equipment under high temperature and high load conditions.

Description

technical field [0001] The invention relates to the technical field of industrial lubricants, in particular to an extreme pressure anti-wear lubricant. Background technique [0002] With the development of modern machinery and equipment in the direction of high speed, high load, high temperature, etc., the lubrication conditions of the equipment have become more and more harsh; It will generate extremely high heat, the film formed by traditional lubricants will be destroyed, and it will no longer protect the metal surface, and the contact surface will be scratched or even sintered. At this time, a high temperature resistant and extreme pressure resistant lubricant is required. Lubricant to improve the wear resistance of various parts. [0003] Chinese invention patent 200910053842.2 discloses an environment-friendly high-temperature lubricant for metal thermoplastic processing. 1 to 20 times the weight of water, although the environment-friendly high-temperature lubricant ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M173/02C10M169/06C10N30/06C10N30/08C10N40/24
Inventor 王延飞
Owner NANHUA UNIV
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