Effects of Crystalline Structure of Zine Coating on Hot-Dip Steel to the Corrosion Resistance

• Main Authors: Che-Fong Huang, 黃澤峰
• Other Authors: Wun-Hsing Lee
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/49b333

碩士 === 國立臺北科技大學 === 製造科技研究所 === 96 === This research is discussion that the hot dip galvanizing steel plate corrosion the state under different zinc crystallization, in the hope of finding out about the crystallization type influence on the anticorrosive ability of the hot dip galvanizing steel plate. Make use of heat produced by different manufacturers to soak its inside of experimental analysis of hot dip galvanizing steel plate and make up composition and structure, contrast and compare the difference that the two corrosion the state further, find out the crystallization type attitude and dependence of corrosion the speed . Set up carbon steel , stainless steel , zinc-plated steel of CIN , KGB zinc-plated four groups of different kinds of hot dip galvanizing steel plate first in experiment , observe its change after the salt fog is tested according to different time. The result of study can find that the carbon steel corrosion the speed biggest while comparing the change that four groups corrosion the speed , later it was zinc-plated steel of KGB , zinc-plated steel of CIN , stainless steel in order. Is it find CIN zinc-plated zinc crystallization type attitude of steel after comparing to analysis to hot dip galvanizing、steel plate with(2 1)The crystallization of the direction is a main fact, the zinc crystallization type attitude of the zinc-plated steel of KGB is as the main fact with the crystallization of the direction, find through the software simulation of solid works that KGB crystallization direction is closer than CIN crystallization direction is arranged , but the experimental result of salt fog is the anticorrosive ability of CIN crystallization direction relatively KGB crystallization direction is good, observe the galvanized layer surface and find one layer of surface of CIN zinc is made up brilliantly by more careful the cube further, one layer of surface of KGB zinc forms brilliantly for the slice, because the cube is exposed to the air surface brilliantly brilliant and smaller than the slice and the air is relatively slow in response, so the zinc-plated steel of CIN resists the ability of losing and is superior to the zinc-plated steel of KGB. After research we can know that different zinc crystallization directions cause different plating one layer of superficial attitudes and opposing and having its apparent influence to corrosion ability by the result of this study.