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一、钻杆表面处理对于抗腐蚀性疲劳的效果目前,苏联及一些国家为防止钻杆锁接头螺纹的腐蚀和螺纹接触表面的粘扣,对螺纹进行镀锌、镀镉、镀铜或磷酸盐化学处理.在一些机械制造行业里,镀铬、镀镍,渗铝或其它表面处理用的很广。在仪表行业里,某些重要的零件采用镀银或镀钯,效果很好。经过表面处理的钻杆,在钻井液中作腐蚀性强度的校核试验,在理论上和实践上都很有价值。
First, the drill pipe surface treatment for the effect of anti-corrosion fatigue At present, the Soviet Union and some countries in order to prevent the drill pipe thread corrosion and thread contact surface of the hook-and-go, the thread galvanized, cadmium plated, copper or phosphate Chemical Processing In some machinery manufacturing industries, there is a wide range of chrome plating, nickel plating, aluminizing or other surface treatments. In the instrumentation industry, some important parts are plated with silver or palladium and work well. After the surface treatment of drill pipe, drilling fluid corrosive intensity of the test, in theory and in practice are valuable.