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钻井泥浆泵缸套在十分苛刻的条件下工作,用碳钢或合金钢制造的普通缸套,使用寿命短,仅200～300小时,只能用于泵压低和无腐蚀的环境。为解决高泵压及有腐蚀环境下工作的缸套使用寿命问题,各主要工业国家都在研究。研究表明用高铬铸铁作内衬制成的双金属缸套取得了良好的效果。高铬铸铁是一种耐磨合金白口铁,具有很高的硬度和抗磨损性能,相应的韧性,较高的抗腐蚀性,而且可以在退火后切削加工,光
Drilling mud pump liner work in very harsh conditions, the ordinary cylinder liner made of carbon steel or alloy steel, short service life, only 200 to 300 hours, can only be used for low pump pressure and non-corrosive environment. In order to solve the problem of service life of cylinder liner with high pumping pressure and working under corrosive environment, all major industrial countries are studying. Studies have shown that the use of high-chrome cast iron liner made of double-metal cylinder achieved good results. High-chromium cast iron is a wear-resistant alloy white iron, with high hardness and wear resistance, the corresponding toughness, high corrosion resistance, and can be annealed after cutting light