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本文介绍利用硼砂进行固体渗硼的方法。具有渗层均匀,重复性好,渗剂可翻新连续使用十次以上,渗硼层具有高的硬度(H_(v100g)1200—1600)和高的耐磨性,在饱和氨盐水、盐酸、硫酸中具有较好的抗蚀性能;工艺、设备简单易行,成本低,对小直径、深孔零件也适用等特点。生产实践证明,经渗硼的精纺机“钢令”、饱和氨盐水中使用的阀杆,使用寿命提高三倍以上。文中阐述了渗硼剂化学反应的热力学分析。对渗硼剂的选择,渗硼工艺,渗硼层的组织和性能等进行了研究。
This article describes the use of borax solid boronizing method. The utility model has the advantages of uniform permeation layer, good repeatability, reabsorption of the permeable agent for more than ten times and continuous use, the boronizing layer has high hardness (H_ (v100g) 1200-1600) and high abrasion resistance, Has good corrosion resistance; technology, equipment is simple, low cost, small diameter, deep hole parts are also suitable for such characteristics. Production practice has proved that the boronized spinning machine “Steel Order”, saturated ammonia salt used in the stem, the service life increased more than three times. The thermodynamic analysis of boronizing chemical reaction is described in this paper. Boronizing agent selection, boronizing process, boronizing layer of the organization and performance were studied.