Characteristics of Bending Strength on Coating Condition of Metal Surface Polyurethan Coating Material

J. Ocean Eng. Technol. 2001;15(2):124-129.

금속표면에 폴리우레탄코팅한 소재의 코팅조건 변화에 따른 굽힘강도 특성

이강길

동명대 기계자동화계열

Keywords: Metal/polyurethan coating, Optimization coating condition, Bending strength, Coating technic application

핵심용어: 금속/폴리우레탄 코팅, 코팅조건의 최적화, 굽힘강도, 코팅기술응용

Abstract

The research on anticorrosive of valve for ship, waterworks, and drainage system is very important. The purpose of this paper is to develop the metal/polyurethan adhesive technique at insider of the value to prevent corrosion in the value. It is performed to the bending strength test by using metal /polyurethan in the metals (SB41, Al6061). It is investigated to the effects of bending strength on curing temperature, preheating time and curing time, and to the fracture mechanism of metal/polyurethan adhensived specimen. As a results, we find that the bending strength is the highest at curing temperature of 11$0^{circ}C$ and the curing time is 60 minutes in metal/polyurethan adhesive specimen.