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三元共渗是一种新的化学热处理方法,它综合吸取了碳、氮、硼三元素单独渗入时的优点,适用于所有碳钢和一般合金钢件,可以提高工件的耐磨性、抗疲劳性、抗咬合性及抗腐蚀性等。在碳素钢中,以45号钢进行三元共渗效果最好。我厂选用45号钢铰刀,进行气体三元共渗后,再经淬火,低温回火,最后精密磨削,可以代替原用的T12A、9CrSi、W18Cr4V钢制铰刀,其使用寿命有不同程度地提高,铰孔精度、光洁度亦比原来铰刀加工的好。现已小批投入正式生产。目前,许多单位都在推广气体三元共渗新工艺,普遍感到纯硼粉货源缺乏,价格较贵。
Ternary permeation is a new chemical heat treatment method, which combines the advantages of three elements of carbon, nitrogen, boron alone infiltration, applicable to all carbon steel and general alloy steel parts, can improve the wear resistance of the workpiece, anti- Fatigue, seizure resistance and corrosion resistance. In carbon steel, the 45 steel for ternary co-osmosis best. I plant selection 45 steel reamers for gas ternary infiltration, and then by quenching, tempering at low temperature, the last precision grinding, you can replace the original T12A, 9CrSi, W18Cr4V steel reamers, the service life is different To a certain extent, reaming accuracy, finish better than the original reamer. Now a small batch of formal production. At present, many units are promoting gas ternary osmosis new technology, generally felt lack of pure boron powder, the price is more expensive.