| 摘要 |
PURPOSE:To obtain a pipe with high corrosion resistance by sticking a metallic alkoxide solution to the inside of the pipe and forming a thin film of a metallic oxide. CONSTITUTION:One end of the pipe 1 made of, for instance, quartz glass is dipped in a vessel 2 containing the metallic alkoxide solution 3 and the solution 3 is sucked into the pipe 1 from the vessel 2 by driving a motor 5. Then, one end of the nine 1 is connected with a bomb 6 and while adjusting a valve 7, N2 gas is gradually flowed into the pipe 1 to purge the inside of the pipe 1 and the solution 3 stuck to the inside of the pipe 1 and the solution 3 stuck to the inside of the pipe 1 is made uniform. Then, one end of the pipe 1 is connected with a boiler 9 and while adjusting a valve 10, steam is flowed into the pipe 1 to hydrolyze the solution 3. Then, one end of the pipe 1 is connected with an oxygen bomb 11 and while adjusting a valve 12, oxygen is flowed into the pipe 1 to heat the whole pipe 1 to about 300-500 deg.C and carryout dehydration and form an alumina thin film with high activation to the inside wall of the pipe 1. Therefore, a liquid phase film is formed to the inside of the pipe 1 and a column of a gas chromatograph is constituted. |
