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苏联研制成一种新型亚硫酸盐水溶液淬火介质,这是一种由多相有机盐和无机盐组成的木素磺酸盐络合物。为研究达种淬火介质的工艺性能,配制了不同浓度(5,10,15,20及25％等)的亚硫酸盐水溶液,并用45号钢,65,40X,60C2,y10A等钢种进行了试验。亚硫酸盐水溶液的冷却性能是用一种温度探测装置测定的,该装置包括一个20毫米的银球和一个银管。温度探测装置在850℃的试验室炉内加热30分钟,当将其浸入被测介质时,回线示波器接通,此时在照象底片上绘出冶却曲线。经由示波器处理后,可得出在800—100
The Soviet Union developed a new type of sulfite quenching medium, a complex of lignosulfonates composed of heterogeneous organic and inorganic salts. In order to study the technological performance of the quenching medium, sulfite aqueous solutions of different concentrations (5, 10, 15, 20 and 25%, etc.) were prepared and treated with steel grades 45, 65, 40X, 60C2 and y10A test. The cooling performance of the sulfite aqueous solution was determined by a temperature probe consisting of a 20 mm silver ball and a silver tube. The temperature probe was heated in a laboratory oven at 850 ° C for 30 minutes. When immersed in the medium under test, the loop oscilloscope was switched on and the metallurgy curve was plotted on the photographic film. After the oscilloscope processing, can be drawn at 800-100