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羟乙基纤维素是一种无臭、无毒、不燃烧、能溶解于水的高分子聚合物。用这种原料配制的水溶液,可代替油和皂化液作淬火介质。用皂化液淬火时有烟气,零件易变形开裂,而且皂化液易变质、发臭。我们配制了由羟乙基纤维素+亚硝酸钠+三乙醇胺的水溶液,用作高频淬火冷却介质,零件的变形和开裂显著减少,而且,淬火硬度高、硬度分布均匀。如φ30×600的45钢活塞杆,淬火后,硬度为HRC63,弯曲变形平均在0.024mm,省去了繁重的校正工作,减少了磨削余量,提高了经济效
Hydroxyethyl cellulose is an odorless, non-toxic, non-flammable, water-soluble polymer. Prepared with this raw material aqueous solution, instead of oil and saponification liquid for quenching medium. Quenching saponification liquid flue gas, parts deformable cracking, and saponification fluid perishable, smelly. We formulated by the hydroxyethyl cellulose + sodium nitrite + triethanolamine solution for high-frequency quenching cooling medium, parts deformation and cracking significantly reduced, and, quenching hardness, uniform hardness distribution. Such as φ30 × 600 45 steel piston rod, after quenching, the hardness of HRC63, the average bending deformation of 0.024mm, eliminating the need for heavy calibration, reducing the grinding margin and improve economic efficiency