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本文通过金相、硬度、X射线结构分析、电子探针、耐磨及抗咬合试验等方法,研究了3Cr2W8V钢在退火、淬火回火及调质三种状态下,进行不同温度(440～600℃)、不同时间(2～8h)的离子硫碳氮三元共渗对渗层深度、硬度、耐磨及抗咬合性能的影响,还对3Cr2W8V钢试样进行了离子氮化、离子软氮化、离子氮化后加氩离子轰击处理,并比较了它们的性能。试验结果表明,三种状态下的3Cr2W8V钢试样经离子硫碳氮共渗后的性能,以淬火回火试样最好,调质次之,退火较差。淬火回火试样经三元共渗后,能得到较厚的渗层、较好的渗层硬度分布,能有效地提高耐磨及抗咬合性能。将试验结果用于压铸机喷咀等模具,能显著提高其使用寿命。
In this paper, 3Cr2W8V steel was annealed, quenched and tempered, quenched and tempered at different temperatures (440-600 ℃) under the conditions of metallography, hardness, X-ray structure analysis, electron probe, wear resistance and occlusion test, ℃), different time (2 ~ 8h) of ion-sulfur carbon and nitrogen ternary permeability on the depth, hardness, wear resistance and occlusal properties of 3Cr2W8V steel samples were also ion nitriding, ionic soft nitrogen After ionization and argon ion bombardment treatment, and compared their performance. The test results show that the 3Cr2W8V steel specimens in the three states after ion-sulfur carbonitriding performance after quenching and tempering the best samples, quenched and tempered, the annealing is poor. After quenching and tempering samples by ternary infiltration, can get a thicker infiltration layer, the better infiltration layer hardness distribution, can effectively improve the wear resistance and anti-bite performance. The test results for die casting machine nozzle and other molds, can significantly improve its service life.