Nylon polymerization member water lubricating bearing for ship

Abstract

The invention discloses a nylon polymer piece water lubricated bearing for ships. Caprolactam is taken as a main component, nanometer level silicon dioxide and titanium dioxide are added into the raw materials, and each component and the usage percentage (weight) thereof are as follows: 94.3-96.5 of caprolactam, 0.3-0.5 of sodium hydroxide, 0.4-0.6 of toluene di-isocyanate, 0.4-0.6 of a molybdenum disulfide, 0.4-0.6 of graphite, 0.6-1.0 of nano-silicon dioxide, 0.2-0.5 of nano-titanium oxide, 0.2-0.4 of scandium oxide, and 1.0-1.5 of zero twist fiberglass yarn. The bearing is used as ship bearing or bushing, each component develops a synergic effect in polymerization, and the density, hardness and wear resistance of the polymer piece are improved, thus improving the performance of the products and prolonging the service life. Furthermore, the polymer piece has the advantages of smooth surface, small friction coefficient, absence of metal powder, lubrication with water only and a wide application.

Description

technical field [0001] The invention relates to a marine bearing, in particular to a water-lubricated marine bearing made of nylon polymer parts. Background technique [0002] Marine stern bearings, rudder bearings and other shaft bushings are important ship parts, which have strict requirements on pressure bearing, wear resistance and corrosion resistance. In the past, iron pear wood, bus alloy, white metal, etc. were used in domestic manufacturing, and oil was used for lubrication in the application. The production cost was high, the raw materials were limited, and pollution was likely to occur. Later, rubber and steel products were imported from abroad, which were expensive and had deficiencies in performance. Recently, reinforced resin bearings have been developed in China. Chinese patent ZL991145682 discloses a modified tough nylon casting for marine use. The main component is nylon 6, and glass fiber, rare earth powder and metal powder are added. The technology has ma...

AI Technical Summary

Problems solved by technology

Domestically, iron pear wood, bus alloy, white metal, etc. were used in the past, and oil was used for lubrication in the application. The production cost was high, the raw materials were limited, and pollution was likely to occur.

Later, rubber and steel products were imported from abroad, which were expensive and had deficiencies in performance.

Recently, reinforced resin bearings have been developed in China. Chinese patent ZL991145682 discloses a modified tough nylon casting for marine use. The main component is nylon 6, and glass fiber, rare earth powder and metal powder are added. The technology has made significant progress, but due to the addition of The particle size of the powder is not fine enough, and the glass fiber is not limited, so that the nylon castings are prone to air bubbles, shrinkage, the structure is not fine enough, the surface is not smooth enough, the wear resistance and toughness are not good, and the application needs more Lubricated with oil, which limits its application

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