焊丝生产中翘距与松弛直径控制
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摘要
焊丝在拉丝生产过程中会产生不同的翘距与松弛直径,其原因在于拉丝模与拉丝卷筒之间存在角度,使得焊丝产生非对称拉丝应力。通过改进老设备,拉丝机增加分线盘,调整拉丝模与拉丝卷筒的相对角度;在拉丝模与卷筒间加装一只小V型压轮,减少焊丝漂移、抖动对拉丝模出口处的影响;适当调节力矩电机力矩,使焊丝仅产生弹性变形而非塑性变形,就能控制焊丝相应的翘距与松弛直径。所生产的焊丝不需要矫直即可保持外观美观,质量稳定,对工人的操作技术要求也大大降低。
Welding wire will produce different pitch and relaxation diameter in wire drawing process,the reason is an angle between wire drawing die and wire drawing capstan,which produces asymmetric drawing stress in welding wire.The welding wire corresponding pitch and relaxation diameter can be controlled through the following methods such as improving old equipment,to install noseplate on wire drawing machine,to adjust relative angle of wire drawing die and capstan,to install a small V-shaped pressure wheel between wire drawing die and capstan,to reduce the influence of welding wire draft and jitter to wire drawing die exit,to adjust torque of torque motor appropriately,the welding wire only produce elastic deformation instead of plastic deformation.The welding wire produced can keep good appearance and quality stable without straightening,which decreases the operational technical requirements of workers.
Welding wire will produce different pitch and relaxation diameter in wire drawing process,the reason is an angle between wire drawing die and wire drawing capstan,which produces asymmetric drawing stress in welding wire.The welding wire corresponding pitch and relaxation diameter can be controlled through the following methods such as improving old equipment,to install noseplate on wire drawing machine,to adjust relative angle of wire drawing die and capstan,to install a small V-shaped pressure wheel between wire drawing die and capstan,to reduce the influence of welding wire draft and jitter to wire drawing die exit,to adjust torque of torque motor appropriately,the welding wire only produce elastic deformation instead of plastic deformation.The welding wire produced can keep good appearance and quality stable without straightening,which decreases the operational technical requirements of workers.
引文
[1]全国焊接标准化技术委员会.GB/T8110—2008气体保护电弧焊用碳钢、低合金钢焊丝[S].北京:中国标准出版社,2009.
[2]陈启武.引起焊丝翘距残余应力分析[J].金属制品,2006(5):29.
[3]孙强,何实,陈佩寅,等.焊丝送丝性能与表面状态关系研究[J].焊接,2009(9):37-39.
[4]李小伟,赵均海.金属棒材拉丝应力统一解[J].工程力学,2010(9):221-226.
[5]赵军,殷璟,马瑞,等.小曲率平面弯曲弹复方程[J].中国科学:科学技术,2011(10):1342-1352.
[6]朱树清.CO 2气保焊丝送丝不均匀原因分析[J].金属制品,2002(1):19-21.
[2]陈启武.引起焊丝翘距残余应力分析[J].金属制品,2006(5):29.
[3]孙强,何实,陈佩寅,等.焊丝送丝性能与表面状态关系研究[J].焊接,2009(9):37-39.
[4]李小伟,赵均海.金属棒材拉丝应力统一解[J].工程力学,2010(9):221-226.
[5]赵军,殷璟,马瑞,等.小曲率平面弯曲弹复方程[J].中国科学:科学技术,2011(10):1342-1352.
[6]朱树清.CO 2气保焊丝送丝不均匀原因分析[J].金属制品,2002(1):19-21.