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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: 2019-03-01
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
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Examples

Experimental program
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Effect test

Embodiment

[0082] The thickeners, base oils, load-resistant additives, rust inhibitors, and surfactants shown in Tables 1 to 5 were prepared in accordance with the amounts (mass%) shown in the tables to prepare grease compositions of the Examples and Comparative Examples . These grease compositions were used as test samples to evaluate flame retardancy, load resistance, rust resistance, and water resistance. It should be noted that the kinematic viscosity at 40°C of the base oil is measured in accordance with JIS K2283.

[0083] 1. Flame retardancy evaluation

[0084] The flame retardancy (ignition temperature and self-extinguishing property) was evaluated by a grease flammability test. In the grease flammability test, 20 g of the grease composition was placed in a cylindrical metal container (ointment kettle) with an inner diameter of 65 mm and a depth of 13 mm, and a steel ball (diameter 19.05) heated to various temperatures (900, 950°C) was placed in it. mm), to determine whether there ...

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Abstract

This flame retardant grease composition does not ignite at 900 DEG C in a grease flammability test and includes: as a thickener, at least one selected from the group consisting of a metal soap based or urea-based thickener; as a base oil, a mineral oil having a kinematic viscosity at 40 DEG C of 300 to 1000 mm2 / s; as an anti-load additive, at least one selected from a sulfurized fat, a sulfurizedolefin, and a polysulfide; as a rust inhibitor, at least one selected from a zinc naphthenate and a sorbitan trioleate; and as a surfactant, a basic calcium phenate and a polyethylene glycol monooleate.

Description

Technical field [0001] The present invention relates to a flame-retardant grease composition that can be used in bearings and gears of iron-making equipment and the like. Specifically, it relates to flame retardancy in the parts of bearings and gears of iron-making equipment, etc., which can be used for high-temperature deposits such as scatter, grease ignites and there is a risk of fire, or there is a risk of mixing cooling water. Sexual grease composition. Background technique [0002] Grease is used for the lubrication of bearings and gears of plastic processing equipment such as iron-making equipment and forging equipment. These devices are usually exposed to high temperature or cooling water. If exposed to high temperature, the grease after use will fall to the bottom of the equipment and accumulate. If the accumulated grease is scattered on the accumulated grease, the grease will catch fire. Therefore, the resulting fire is regarded as a problem. In addition, if cooling ...

Claims

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Application Information

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Patent Type & Authority Applications(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
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