我厂生产的45钢齿轮,原用高频加热水淬,常批量产生裂纹,造成严重经济损失。为解决这一问题,我们参考有关资料,试验了亚硝酸钠十三乙醇胺水溶液介质,并应用于生产,取得很好的效果。 1.15％亚硝酸钠+5％三乙醇胺水溶液的特性图1为15％亚硝酸钠+5％三乙醇胺水溶液的冷却特性曲线.分析认为,该溶液在550 I plant 45 steel gears, the original high-frequency heating water quenching, often batch cracks, causing serious economic losses. To solve this problem, we refer to the relevant information, test sodium tridecyl alcohol amine aqueous solution medium, and applied to the production, and achieved good results. 1.15% Characteristics of sodium nitrite + 5% aqueous triethanolamine Figure 1 shows the cooling characteristics of a 15% sodium nitrite + 5% triethanolamine aqueous solution.It is believed that this solution is stable at 550