Composite cladding method and equipment for cladding tungsten carbide hard alloy particles on surface of steel plate

• Main Authors: PANG ZIRUI, ZHANG BINGYI, ZHAO ZHIBIN, ZHANG BINGQUAN
• Format: Patent
• Language: Chinese; English
• Published: 26.07.2024
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The invention provides a composite cladding method and equipment for cladding tungsten carbide hard alloy particles on the surface of a steel plate. A plasma cladding process and a brazing process with a plasma arc as a heat source are combined; tungsten carbide hard alloy particles are embedded into a cladding alloy layer in a brazing mode through high-energy heat generated in the plasma arc cladding process; and under the auxiliary action of the brazing material and the soldering flux, the tungsten carbide hard alloy particles, the alloy layer and the base material layer are smoothly and deeply fused together in a metallurgical mode. The composite wear-resistant layer has higher wear resistance, impact resistance and corrosion resistance, and is suitable for more complex, severe and diversified working conditions. 本发明提出一种钢板表面熔覆碳化钨硬质合金颗粒的复合熔覆方法及设备，通过等离子熔覆工艺和以等离子弧为热源的钎焊工艺相结合的工艺方式，将碳化钨硬质合金颗粒通过等离子弧熔覆过程中产生的高能热以钎焊的方式熔嵌入熔覆合金层内；在钎焊材料和助焊剂的辅助作用下，顺利将碳化钨硬质合金颗粒与合金层、基材层深度冶金熔合在一起。复合耐磨层具有更高的抗磨、抗冲击、抗腐蚀性能，适合于更加复杂、恶劣、多样的工况环境。