Hose joint in different concentration of electrochemical corrosion resistance and resistance

H2S04, hose connectors in different concentration of HCl, NaOH and 6% FeCl3 solution of electrochemical corrosion resistance and intergranular corrosion resistance was studied, in combination with the tissue composition gradient, gradient and electrochemical gradient, the welding hose joint three regions (parent metal area (BM), heat affected zone (HAZ) and weld metal (wM)) of the difference of corrosion resistance are analyzed and find out the weak links; At the same time the four welding hose connector in the corresponding immersion corrosion and corrosion of salt fog corrosion and paste corrosion erosion performance is analyzed. For the use of stainless steel welding products in corrosive environment provides experimental data and guidance, to prevent and slow down the corrosion of the stainless steel welding hose connection