A, salt fog test is a major use of salt spray test equipment created by artificial simulated conditions of salt fog conditions to assess product or environmental testing of the corrosion resistance of metal materials. It is divided into two categories, the category of natural environment exposure test, another kind of artificial accelerated simulated conditions of salt fog test. Artificial simulated conditions of salt spray test is to use a certain volume of space test equipment, salt spray test chamber, in his capacity space, using the method of artificial salt fog environment to the salt fog corrosion resistance properties of the product quality evaluation.

Test environment: neutral, acid, weak acid, strong alkali, weak base

Standard without C4 in ISO12944-2-1998 - M, C5 -m, standard stipulated in the atmospheric environment of 6 class level of atmospheric corrosion

C1 is very low: in a clean air environment have heating facilities construction, such as offices, shops, schools, and inside the hotel

Low C2: mild air pollution, the condensation is mostly rural, no heating, such as warehouse, stadium, etc

C3 medium: urban and industrial atmosphere, medium of sulfur dioxide pollution, low salinity coastal areas with high humidity and some pollution in the air of workplace, such as food processing plants, laundry, brewery, dairy, etc

C4: chemical industrial park and the coastal area of high salinity, swimming pool, ships and shipyard C5 -i high (industrial) industrial area of the high humidity and aggressive atmosphere there is always a condensation and buildings and high humidity area

C5 - M high: (sea) of high salinity offshore coastal zone is always in high humidity high buildings or other area of the pollution

2, 1, the common copper plating nickel joint basic for 48 h and 72 h salt spray test, if you need to achieve higher, surface oxidation to do special processing (chrome plated), up to 480 h. (we have done FTL8 - M12 test in sodium chloride NaCl environment of up to 500 hours, the individual components of plating cost for 4 cents, built-in white silica core material grades for XHG15150)

2, 304 American standard stainless steel joints (generally refers to the main body and the nut part) neutral environment can be up to 6 months, no problem, the water can reach 1 month there is no problem, the working environment gb stainless steel slightly.