Study On The Relativity Of Natrue Exposure & Artificial Accelerate Test And The Design Of Anti-Corrosion

Materials are the pillar and the important foundation of national and society developments. It is always used in certain environment and its function is descended until to damage by environmental in process, needing the solution lapsing and protective problem. Invalidation of material not only brings the important economy loss and a large quantity depletion of resources and energy sources for the nation, but also brings about the malignant accident and threat for safeties of equipments and building and human body. Therefore, the corrosion and aging date of typical materials and products in different pollution environment are accumulated. The main factors of the natural environment corrosive and the lapsing rule of various materials at different natural environment are grasped. It has signification meaning that nation infrastructure, especially to choose and using materials in reason scenically national defense developments and to national importance project, to design of engineering structural anti-corrosion and to choose measure of anti-corrosion, to control lapse of material in the natural environment, to reduce the economy lose, to guarantee the engineering quality and dependability, to satisfy national developments for the moment and with farsighted demand.By the international cooperation research, various material pieces, anti-corrosion technique pieces, products exposure test, glass frame exposure test and artificial accelerate test (CASS, NSS, SO2 test) are organized in Chongqing and Hiroshima. The corrosion external appearances of test pieces are observed. The corrosion outcome is analyzed. The corrosion settling quantity and machine function etc. are measured after exposure test. Investigate anti-corrosion of various material and protection technique and products under the harsh acid rain environment, and so on the main environment factor as to it's of influence regulation. The artificial accelerate test be combined with the environment exposure test, the relativity be studied between the artificial accelerate test two and the environment exposure test. its service life be make sure, so look for the economic valid protection technique at the same time, so serve to two cities economic developments, increases together two cities level of anti-corrosion technique.Research result indicates that the environment asperity has marked difference between Chongqing and Hiroshima, the difference primarily expressing in the concentrations of SO42-, NO3-, NH4+, pH value, surface wetness time, dew, dust ,...