High-temperature dry-membrane lubricant

A dry film lubricant, high temperature technology, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of loss of lubrication, easy to oxidize, etc., and achieve the effect of improving high temperature bonding strength, high carbon residual rate, and good high temperature performance

Inactive Publication Date: 2015-03-11
北京优材百慕航空器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main components of high-temperature dry film lubricants in the prior art are molybdenum disulfide or graphite powder, but the working temperature usually does not exceed 400°C. If the temperature is too high, they are prone to oxidation and lose their lubricating effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The composition of the high temperature dry film lubricant is as follows:

[0015] Absolute ethanol: 100ml

[0016] Graphite powder (≤5 microns): 8g

[0017] Hexagonal boron nitride (≤5 micron): 8g

[0018] Phenolic resin (thermoplastic): 10 grams

[0019] Herotropine: 1g

[0020] Water: 2ml

[0021] 85% phosphoric acid: 1ml

[0022] Surfactant OP-4: 0.3ml

[0023] Surfactant 6501: 0.3ml

[0024] Completely dissolve 10g of phenolic resin in 100ml of absolute ethanol, completely dissolve 1g of urotropine in 2ml of water and add to the above solution, then add 8g of graphite micropowder and 8g of boron nitride powder, and then add 0.3ml of surfactant OP -4. Stir 0.3ml of surfactant 6501 fully, and finally add 1ml of 85% phosphoric acid, and stir well.

[0025] Soak the mold in the lubricant for about 10 seconds, then cure it in an oven at 200°C for 10 minutes, and take it out at room temperature for use.

[0026] After heating at 800°C and cooling to room tempera...

Embodiment 2

[0028] The composition of the high temperature dry film lubricant is as follows:

[0029] Absolute ethanol: 100ml

[0030] Graphite powder (≤5 microns): 12g

[0031] Hexagonal boron nitride (≤5 micron): 6g

[0032] Phenolic resin (thermoplastic): 12 grams

[0033] Herotropine: 1.2g

[0034] Water: 2.4ml

[0035] 85% phosphoric acid: 2ml

[0036] Surfactant OP-4: 0.5ml

[0037] Surfactant 6501: 0.5ml

[0038] Dissolve 12g of phenolic resin completely in 100ml of absolute ethanol, completely dissolve 1.2g of urotropine in 2.4ml of water and add it to the phenolic resin alcohol solution, then add 12g of graphite micropowder and 6g of boron nitride powder, and then add 0.5ml Surfactant OP-4, and 0.5ml of surfactant 6501, stir well, and finally add 2ml of 85% phosphoric acid, stir well.

[0039] Brush the prepared lubricant on the friction part of the mold, heat it in an oven at 230°C for 5 minutes, and then dry it before use.

[0040] After heating at 800°C and cooling to...

Embodiment 3

[0042] The composition of the high temperature dry film lubricant is as follows:

[0043] Absolute ethanol: 100ml

[0044] Graphite powder (≤5 microns): 10g

[0045] Hexagonal boron nitride (≤5 micron): 6g

[0046] Phenolic resin (thermoplastic): 15 grams

[0047] Herotropine: 1.5g

[0048] Water: 3ml

[0049] 85% phosphoric acid: 4ml

[0050] Surfactant OP-4: 0.6ml

[0051] Surfactant 6501: 0.6ml

[0052] In the preparation process of the dry film lubricant, 15g of phenolic resin is completely dissolved in 100ml of absolute ethanol, 1.5g of urotropine is completely dissolved in 3ml of water, and then added to the phenolic resin alcohol solution, and then 10g of graphite fine powder and 6g Boron nitride powder, then add 0.6ml of surfactant OP-4 and 0.6ml of surfactant 6501, stir thoroughly, and finally add 4ml of 85% phosphoric acid, and stir evenly.

[0053] Brush the prepared lubricant on the friction part of the mold, heat it in an oven at 250°C for 10 minutes, dry ...

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Abstract

The invention relates to a dry membrane lubrication technology, and concretely relates to a high-temperature dry-membrane lubricant. The high-temperature dry-membrane lubricant mainly comprises graphite micro powder, hexagonal structure boron nitride, ethanol, phenolic resins, urotropine, phosphoric acid and a nonionic surfactant. The high temperature lubricant can be used for coating on surface of a mold after fully mixing, the high temperature lubricant enables solidification treatment under 200-250 DEG C, and the high temperature lubricant has good adherence effect, and can be used for lubrication under high temperature. In addition, the high-temperature dry-membrane lubricant has nontoxic component, less influence on worker, and high environmental protection value.

Description

technical field [0001] The invention belongs to dry-film lubrication technology, and in particular relates to a dry-film lubricant used at high temperature (350-800° C.), which can be used for the lubrication protection of thermal processing molds and prolongs the service life. Background technique [0002] Disperse solid lubricants (molybdenum disulfide, graphite powder, etc.) in organic or inorganic adhesives, and coat them on the friction surfaces of molds and mechanical parts. The dry film lubricant coating obtained after drying can reduce material of friction and wear. Compared with conventional grease lubrication, dry film lubricants can effectively lubricate under special environmental conditions such as high temperature, high load, ultra-low temperature, ultra-high vacuum, strong redox, and strong radiation. Due to the high viscosity of ordinary grease lubrication, it is easy to absorb fine particles such as dust during use. If the hardness of these particles is hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/10
Inventor 张保法吴凤秋周志伟
Owner 北京优材百慕航空器材有限公司
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