近几年来,我国渗硼工艺研究有很大进展,固体渗硼更为突出。当前许多模具、耐磨件、耐蚀件都应用渗硼工艺,经济效益相当显著。随渗硼工艺的扩大应用,渗硼的研究已逐步深入,并出现一些新的动向。固体渗硼,已先后研制出粉末渗硼剂和粒状渗硼剂,解决了渗剂的松散性问题,渗后工件表面光洁;渗硼温度已可降低到900～850℃,甚至更低。我国市场上先后出现4～5种固体渗硼剂商品,对促进渗硼工艺的推广起了积极作用。目前大多数固体渗硼,是以硼铁为供硼剂,氟硼酸钾为活化剂,成本比较高,价格贵,已引起各方面的重视。我们采用廉价的工业纯氟硅酸钾取代氟硼酸钾制出粒状渗硼剂,性能良好。用硼砂、硼酐等部分地取代硼铁、碳化硼作为供硼剂,有可能较大幅度地降低渗硼剂的成本。固体渗硼需要装箱加热,加热时间长、耗能多、渗剂消耗量大,增加渗硼的工艺成本。现在已开始研究直接在空气介质中加热的膏剂渗硼法。这种方法易实现局部渗硼, In recent years, great progress has been made in boronizing technology in our country, solid boronization is more prominent. At present, many molds, wear-resistant parts, corrosion-resistant parts are boronizing process, the economic benefits are quite significant. With the expanding application of boronizing technology, boronizing research has been gradually deepened, and some new trends. Solid boronizing, powder boronizing agent and granular boronizing agent have been developed successively to solve the problem of looseness of the penetrant. After the seepage, the surface of the workpiece is smooth. The boronization temperature can be reduced to 900 ~ 850 ℃ or even lower. China has appeared on the market 4 to 5 kinds of solid boron products, to promote boronization process to promote the play an active role. At present, most solid boronizing is based on boron and iron for boron agent, potassium fluoroborate as activator, the cost is relatively high, the price is expensive, has caused all aspects of attention. We use low-cost industrial pure potassium fluoride instead of potassium fluoborate made of granular boronizing agent, good performance. With borax, boric anhydride and other partial replacement of ferroboron, boron carbide as a boron agent, it is possible to significantly reduce the cost of boronizing agent. Solid boronizing need boxing heating, heating a long time, energy consumption, consumption of large infiltration agent, increasing the cost of boronizing process. Now it is time to study the oozing method of the paste which is heated directly in the air medium. This method is easy to achieve partial boronizing,