1977年,三井公司在MAN-B&W柴油机上使用一种名叫塔克合金的铸铁作为气缸套材料,它是一种含有少量B和P的片状石墨合金铸铁。与其匹配的活塞环材料为尤巴合金。塔克铸铁具有较高的强度及耐磨性,并且一直使用在GFCA,GB及目前的MC柴油机上。但若要进一步提高其强度,则须牺牲其高的耐磨性。为了寻找既有较高的强度又有较佳耐磨性的铸铁,该公司对多种合金铸铁进行了测 In 1977, Mitsui used a Tucker alloy cast iron as liner material on a MAN-B & W diesel engine, which is a flaky graphite alloy cast iron with a small amount of B and P. Its matching piston ring material is Yuba alloy. Tuck cast iron with high strength and wear resistance, and has been used in GFCA, GB and the current MC diesel engine. However, to further enhance its strength, it must sacrifice its high wear resistance. In an effort to look for cast iron, which has both higher strength and better wear resistance, the company tested various types of alloy cast iron