Steel that has been hardened by immersing it in water or oil to cool it. 浸入水或油中冷却硬化的钢。
Process conditions of catalytic hydrogenation of lard at atmospherical pressure, of hydrolysis of hardened oil for producing stearic acid and glycerol, and of the exchange esterification for the preparing glyceryl monostearate are described. 叙述了猪油常压催化氢化、硬化油水解制硬脂酸和甘油、甘油与硬化油发生交酯反应制备单硬脂酸甘油酯的工艺条件。
Mechanical measurements show that the compressional strength of hardened oil base cement varies significantly with changing the W/ S ratio of OBCS and the highest strength is observed at intermediate W/ S ratios of 0.2& 0.3; 力学性能测试表明,硬化油基水泥石的抗压强度随水浆比的变化而有很大的差别,水浆比适中时(0.20~0.30)抗压强度最高;