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Flame Retardant Grease Composition

A grease composition and flame retardancy technology, applied in the directions of lubricating compositions, gear lubrication/cooling, mechanical equipment, etc., can solve the problems of undocumented flame retardancy, fire resistance, etc. Excellent rust resistance and water resistance

Active Publication Date: 2021-10-15
KYODO YUSHI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Patent Document 3 discloses a grease composition having excellent pressure-feeding properties, hydrous shear stability, and rust prevention properties, but there is no description about flame retardancy and ignition resistance.

Method used

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  • Flame Retardant Grease Composition
  • Flame Retardant Grease Composition
  • Flame Retardant Grease Composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0082] The thickeners, base oils, load-resistant additives, rust inhibitors, and surfactants shown in Tables 1 to 5 were used in the amounts (% by mass) shown in the tables to prepare the grease compositions of Examples and Comparative Examples . These grease compositions were used as test samples to evaluate flame retardancy, load resistance, rust resistance and water resistance. In addition, the kinematic viscosity at 40 degreeC of a base oil is measured according to JISK2283.

[0083] 1. Flame retardancy evaluation

[0084] Flame retardancy (ignition temperature and self-extinguishing property) was evaluated by a grease burning test. Grease flammability test is to put 20g of the grease composition into a cylindrical metal container (ointment pot) with an inner diameter of 65mm and a depth of 13mm, and put steel balls (diameter 19.05°C) heated to various temperatures (900, 950°C) mm), to determine whether it is ignited, and the time from when it ignites to the end of comb...

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Abstract

The present invention provides a flame-retardant grease composition containing at least one kind selected from the group consisting of metal soaps and ureas as a thickener, and having a kinematic viscosity of 300 to 1000 mm at 40°C 2 / s mineral oil as base oil, at least one selected from sulfurized grease, sulfurized olefin and polysulfide as load-resistant additive, at least one selected from zinc naphthenate and sorbitan trioleate as Two types of antirust agent, basic calcium phenate and polyethylene glycol monooleate were used as surfactants, and did not catch fire at 900° C. in the grease flammability test.

Description

technical field [0001] The present invention relates to a flame-retardant grease composition that can be used in bearings and gears of ironmaking equipment and the like. Specifically, it relates to flame retardancy in parts such as bearings and gears of iron-making equipment, which can be used for bearings and gears where there is a risk of fire due to high-temperature scatter, grease igniting, or the risk of mixing cooling water. lubricating grease composition. Background technique [0002] Grease is used for the lubrication of bearings and gears of plastic processing equipment such as ironmaking equipment and forging equipment. These devices are often exposed to high temperature or cooling water. If exposed to high temperature, the used grease will hang down to the bottom of the equipment and accumulate, and if the accumulated grease is scattered to the accumulated grease, the grease will catch fire, so the resulting fire is regarded as a problem. In addition, if coolin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/06F16C33/66F16H57/04C10M101/02C10M115/08C10M117/02C10M129/58C10M129/76C10M135/04C10M151/04C10M159/22C10N10/02C10N10/04C10N20/00C10N20/02C10N30/00C10N30/06C10N30/12C10N40/02C10N40/04C10N50/10
CPCC10M101/02C10M115/08C10M117/02C10M129/58C10M129/76C10M135/04C10M151/04C10M159/22C10M169/06F16C33/66F16H57/04
Inventor 笠原教行金泽裕太下斗米直
Owner KYODO YUSHI CO LTD