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Fire-resistant hydraulic fluid composition, preparation method of fire-resistant hydraulic fluid composition and hydraulic fluid prepared by using composition

A composition and hydraulic fluid technology, applied in the field of lubrication, can solve problems such as poor lubricity, increased power consumption, hydraulic medium leakage, etc., and achieve the effect of improving friction and wear resistance

Inactive Publication Date: 2018-01-19
SHANGHAI JINZHAO ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Friction and wear of the seals under dynamic stress can easily lead to mechanical damage to the seals. At the same time, poor hydraulic media can cause swelling and shrinkage of the seal material, which directly leads to leakage of hydraulic media, increased power consumption, and other adverse consequences.
[0003] Fire-resistant hydraulic fluid generally uses water-ethylene glycol as the base oil, and is composed of additives such as water-soluble extreme-pressure anti-wear agent and anti-rust agent, while water-soluble extreme-pressure anti-wear agent and anti-rust agent The rust performance is often weaker than that of oily extreme pressure antiwear and antirust agents. At the same time, the lubricity of water-glycol solution is also worse than that of mineral oil. Therefore, it is a topic of practical significance to develop fire-resistant hydraulic fluid additives that have excellent extreme pressure, anti-wear, and anti-rust properties, can repair friction and wear, and have little effect on the swelling and shrinkage of common sealing materials.

Method used

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  • Fire-resistant hydraulic fluid composition, preparation method of fire-resistant hydraulic fluid composition and hydraulic fluid prepared by using composition
  • Fire-resistant hydraulic fluid composition, preparation method of fire-resistant hydraulic fluid composition and hydraulic fluid prepared by using composition

Examples

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Effect test

Embodiment 1

[0032] Weigh 80g of lanthanum phosphate hydrate, add it to 400g of mannitol monooleate and stir well until a uniform paste is formed, add 200g of Tween-80, 200g of sodium petroleum sulfonate, and 120g of sodium lauroyl sarcosinate and continue stirring until translucent , which is a fire-resistant hydraulic fluid composition.

[0033] The preparation method of above-mentioned sorbitol monooleate is: take by weighing 1821.7g (10mol) of sorbitol and 2824.7g (10mol) of oleic acid in proportion and add respectively in the reactor, add 40g (85%) phosphoric acid and stir and heat to 210 ℃, fully reacted for 10 hours, decompressed and drained the water, which was sorbitol monooleate.

[0034] After mixing 300 g of the fire-resistant hydraulic fluid composition prepared above and 9700 g of water-ethylene glycol base oil (water content 45%) evenly, a fire-resistant hydraulic fluid is obtained.

[0035] The above fire-resistant hydraulic fluid was applied to the TIMKEN test machine for...

Embodiment 2

[0038] Weigh 50g of lanthanum phosphate hydrate and add it into 300g of glycerol monooleate and stir until a uniform paste is obtained, add 300g of Tween-60, 200g of sodium petroleum sulfonate, and 150g of sodium oleoyl sarcosinate and continue stirring until translucent. That is, a fire-resistant hydraulic fluid composition.

[0039] After mixing 20 g of the fire-resistant hydraulic fluid composition prepared above and 980 g of water-ethylene glycol base oil (water content 40%) uniformly, a fire-resistant hydraulic fluid is obtained.

Embodiment 3

[0041] Weigh 60g of cerium phosphate hydrate and add it to 350g of pentaerythritol monooleic acid and stir well until a uniform paste is formed, add 250g of Tween-40, 210g of sodium petroleum sulfonate, 130g of sodium myristoyl sarcosinate and continue stirring until translucent , which is a fire-resistant hydraulic fluid composition.

[0042] After mixing 10 g of the fire-resistant hydraulic fluid composition prepared above and 990 g of water-ethylene glycol base oil (50% water content), a fire-resistant hydraulic fluid is obtained.

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Abstract

The invention provides a fire-resistant hydraulic fluid composition, which is characterized by being prepared from a raw material comprising 5 to 8 percent by mass of phosphate rare earth compound. The prepared fire-resistant hydraulic fluid composition can obviously improve frictional wear resistance and rust protection of hydraulic fluid; meanwhile, both swelling and shrinkage of the prepared fire-resistant hydraulic fluid composition for sealing materials, such as chemigum, accord with related standard requirements.

Description

technical field [0001] The invention belongs to the technical field of lubrication, and in particular relates to a fire-resistant hydraulic fluid composition, a preparation method thereof, and a hydraulic fluid prepared from the composition. Background technique [0002] The hydraulic system is the most common power conversion, transmission, and control motion system, and water-glycol, mineral oil, synthetic oil, etc. are generally used as hydraulic media. Under dynamic stress, the seals produce friction and wear, which can easily lead to mechanical damage to the seals. At the same time, poor hydraulic media can cause swelling and shrinkage of the seal material, which directly leads to leakage of hydraulic media, increased power consumption, and other adverse consequences. [0003] Fire-resistant hydraulic fluid generally uses water-ethylene glycol as the base oil, and is composed of additives such as water-soluble extreme-pressure anti-wear agent and anti-rust agent, while ...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M161/00C10N40/08C10N30/06C10N30/12C10N30/08
Inventor 张乃庆吴启东蒋宁
Owner SHANGHAI JINZHAO ENERGY SAVING TECH
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