Acta Metallurgica Sinica (English Letters) ›› 1999, Vol. 12 ›› Issue (5): 925-928.

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THE DEVELOPMENT OF COLD WELDING SURFACING ELECTRODE FOR BLAST FURNACE VALVE

P.Y.Zong and L.R.Zhang Mechanical Engineering College, Shenyang University, Shenyang 110044, China   

  • 收稿日期:1999-10-25 修回日期:1999-10-25 出版日期:1999-10-25 发布日期:2009-10-10

THE DEVELOPMENT OF COLD WELDING SURFACING ELECTRODE FOR BLAST FURNACE VALVE

P.Y.Zong and L.R.Zhang Mechanical Engineering College, Shenyang University, Shenyang 110044, China   

  • Received:1999-10-25 Revised:1999-10-25 Online:1999-10-25 Published:2009-10-10

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摘要： 1 . Introduction Generally ,the base m etal for blast furnace valve is Z G270 ～500 ,and itis required that an alloylayer , w hich is heatresistant ,abrasionresistant , as w ell as corrosionresistant , be surfaced on thesealing face . This surfaced sealing face m ust be m achined and grinded . At present , frequently applied surfacing tech niques are traditional m anual arc surfac....

Abstract: The Authors of this Article have done research on the cracking resistance of cold welding surfacing electrodes for blast furnace valves by adjusting the basicity of slag component, decreasing the hydrogen content and improving microstructure. The DF 2 Cold Welding Surfacing Electrodes prove to possess the following characters: 1) Excellent cracking resistance for surfacing alloys at normal temperature. 2) Excellent cracking resistance for repair welding and rewelding. 3) Excellent machinability for surfacing alloying.

Key words: cold welding, surfacing, electrode, blast furnace, valve