A comprehensive experiment of water soluble lubricant covered on gold plated surface

Abstract

Since some popular solvents such as 1,1,1-trichloroethane, freon are forbidden to use because of the depletion of ozone layer, many lubricants may not be able to apply on the contact surfaces. It is of urgent importance to develop new lubricants especially for coating on thin gold electroplating surfaces. TETRA Co. of Japan recently provided a water soluble lubricant to match the requirement. A comprehensive experiment was carried out for studying the new lubricant. Experimental result shows it's important characteristics: (1) Initial high volatility which leads to practical application 96hrs later after coating. (2) Very high insulated resistance in rather dry air, but it drops down significantly in high humid condition. (3) Moderate inhibiting ability for reducing corrosion in wet corrosive gas environment. (4) Very high resistance against sliding wear and fretting wear of gold plating.