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自保护药芯焊丝飞溅的形成机理及其影响因素
引用本文:潘川,喻萍,薛振奎,田志凌. 自保护药芯焊丝飞溅的形成机理及其影响因素[J]. 焊接学报, 2007, 28(8): 108-112
作者姓名:潘川  喻萍  薛振奎  田志凌
作者单位:中国钢研科技集团公司,北京,100081;中国石油天然气管道局科学研究院,河北,廊坊,065000
摘    要:详细研究了自保护药芯焊丝飞溅的形成机理及其影响因素.高速摄影观察表明,自保护药芯焊丝在焊接过程中的飞溅主要有以下三种形式,电弧力引起的大颗粒飞溅、气泡放出型飞溅和气体爆炸引起的飞溅.通过混料回归试验分析了药粉中氟化物、氧化物、碳酸盐、脱氧剂、合金元素对焊接飞溅的影响规律.结果表明,氟化物和碳酸盐对飞溅的影响较大,氧化物、脱氧剂和合金元素对飞溅的影响较小.

关 键 词:自保护药芯焊丝  飞溅  形成机理
文章编号:0253-360X(2007)08-108-05
收稿时间:2006-03-23
修稿时间:2006-03-23

Mechanism and influencing factors of spatter formation with self-shielded flux cored wire
PAN Chuan,YU Ping,XUE Zhenkui and TIAN Zhiling. Mechanism and influencing factors of spatter formation with self-shielded flux cored wire[J]. Transactions of The China Welding Institution, 2007, 28(8): 108-112
Authors:PAN Chuan  YU Ping  XUE Zhenkui  TIAN Zhiling
Affiliation:China Iron & Steel Research Institute Group, Beijing 100081, China,China Iron & Steel Research Institute Group, Beijing 100081, China,Pipeline Research Institute of CNPC, Langfang 065000, China and China Iron & Steel Research Institute Group, Beijing 100081, China
Abstract:The spatter formation mechanism of self-shielded flux cored wire has a remarkable different with other welding materials because of its speciality in wire''s construction and welding method.The mechanism and influencing factors of welding spatter are studied.High-speed photographs indicate that there are mainly three types of spatter in self-shielded flux cored arc welding, which are big spatter caused by arc force, bubble released spatter and gas explosion spatter.Five flux ingredients, which influence the welding spatter greatly, are investigated by means of spatter tests using mixing material regression method.Experimental result shows that the effect of fluorides and carbonates is greater than that of oxides, killing agents and alloys.
Keywords:self-shielded flux cored wire  spatter  formation mechanism
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