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A long-life anti-seize grease composition and preparation method

A grease composition and the technology of the composition, applied in the field of grease, can solve problems such as difficulty in disassembling pins, and achieve the effects of delaying rust and wear speed, smooth assembly and disassembly, and preventing rust

Active Publication Date: 2019-09-20
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the defect that the prior art lubricating grease is difficult to dismantle the pin shaft after the assembly of the standard parts of the tower crane, and to provide a grease that can always maintain good grease during the construction period of 2 years to more than several years. Anti-rust, anti-corrosion, anti-friction, anti-seize and other properties of long-life anti-seize grease composition, in order to realize the normal assembly and disassembly of shaft pins

Method used

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  • A long-life anti-seize grease composition and preparation method
  • A long-life anti-seize grease composition and preparation method
  • A long-life anti-seize grease composition and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The long-life anti-seize grease composition has the following components and mass percentages:

[0026] (1) No. 2 complex calcium sulfonate base grease 92.4%;

[0027] (2) T551 0.5%;

[0028] (3) Calcium Dinonylnaphthalene Sulfonate 3.0%

[0029] (4) Molybdenum disulfide powder 0.6%;

[0030] (5) Titanium dioxide 2.7%;

[0031] (6) HSD 0.8%.

[0032] First, 924.0 g of No. 2 composite calcium sulfonate base grease (working penetration 242, unit 0.1 mm) was put into the kettle, and stirred to raise the temperature. When the temperature reaches 120°C, 5.0g of T551, 3.0g of calcium dinonylnaphthalenesulfonate, 6.0g of molybdenum disulfide powder (fineness<5μm), 2.7g of titanium dioxide (320 mesh sieve residue<0.1%), and HSD 8.0g. Stir for 21min, then get out of the kettle. Grind it three times with a three-roll machine to get the finished product.

Embodiment 2

[0034] The long-life anti-seize grease composition has the following components and mass percentages:

[0035] (1) No. 1 complex calcium sulfonate base grease 91.2%;

[0036] (2) T561 0.6%;

[0037] (3) Zinc dinonylnaphthalene sulfonate 2.8%;

[0038] (4) Tungsten disulfide 1.3%;

[0039] (5) Ceramic powder 3.4%;

[0040] (6) Ceramic powder 0.7%.

[0041] First, put 912g of No. 1 composite calcium sulfonate base grease (working penetration 331, unit 0.1mm) into the kettle, stir and heat up. When the temperature reaches 118°C, 16.0g of T56, 2.8g of zinc dinonylnaphthalenesulfonate, 1.3g of tungsten disulfide (fineness<5μm), 3.4g of ceramic micropowder (residue of 320 mesh sieve<0.1%) and ceramic Micropowder 7.0g. Stir for another 18min, then get out of the kettle. Grind it three times with a three-roll machine to get the finished product.

Embodiment 3

[0043] The long-life anti-seize grease composition has the following components and mass percentages:

[0044] (1) No. 2 complex calcium sulfonate base grease 82.9%;

[0045] (2) T551 1.0%;

[0046] (3) Calcium Dinonylnaphthalene Sulfonate 4.8%

[0047] (4) Molybdenum disulfide 3.2%;

[0048] (5) Ceramic powder 4.5%;

[0049] (6) HSD 3.6%.

[0050] First, 829.0 g of No. 2 composite calcium sulfonate base grease (working penetration 242, unit 0.1 mm) was put into the kettle, and stirred to raise the temperature. When the temperature reaches 95°C, 10.0g of T551, 48.0g of calcium dinonylnaphthalenesulfonate, 32.0g of molybdenum disulfide (fineness<10μm), 45g of ceramic micropowder (320 mesh sieve residue<0.3%) and HSD 36.0 are sequentially added. g. Stir for another 30min, then get out of the kettle. Grind it three times with a three-roll machine to get the finished product.

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Abstract

The invention relates to a long-service-life anti-clamp and bite lubricating grease composition and a preparation method thereof. The composition comprises the following components by weight percent: 82.9%-97.5% of compound calcium sulfonate grease, 0.3%-1.0% of an antioxidant and a metal deactivator, 0.6%-4.8% of an anti-rusting agent, 0.3%-3.2% of a solid lubricant, 1.0%-4.5% of a solid filling agent and 0.3%-3.6% of a tackifier. According to the lubricating grease composition, the rusting speed of a pin shaft of a tower crane can be remarkably decreased, the problem that the pin shaft of a tower crane used for large-sized or high-rise building projects with a construction period over 2 years cannot be dismounted due to clamping, biting and rusting under a construction environment can be effectively avoided, and the smooth mounting and dismounting of the pin shaft of a standard knot of the crane tower are realized.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, in particular to a long-life anti-seize grease composition and a preparation method. Background technique [0002] Tower cranes, referred to as tower cranes or tower cranes, are the most commonly used lifting equipment on construction sites. Tower cranes are constructed under open-air construction conditions and must bear the influence of complex media environments such as rainwater, cement, sand and dust, and corrosive gases. When the construction is completed, the components of the tower crane must be dismantled and moved. In an open-air working environment, if the connecting pin shaft of the tower crane standard section is stuck due to severe corrosion, it will cause great difficulties for the disassembly operation of the tower crane after the construction work is completed. To realize the smooth installation and disassembly of the above fasteners, it is necessary to apply anti-se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/00C10N50/10C10N30/06C10N30/12C10N10/04C10N10/12
CPCC10M169/00C10M2201/062C10M2201/065C10M2201/066C10M2201/102C10M2205/04C10M2205/06C10M2215/223C10M2219/044C10M2219/0445C10M2219/106C10N2030/06C10N2030/12C10N2030/72C10N2050/10C10N2010/12C10N2010/04
Inventor 王先会谷效英王兆坤李素李勇袁敬波
Owner CHINA PETROLEUM & CHEM CORP
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