焊缝熔宽动态实时检测研究

本文以通过焊接熔池中心的红外扫描横向温度场为根据,提出了一种新颖的焊缝熔宽动态实时检测装置,其检测数据可通过显示、打印系统,进行监视、记录,亦可直接送入微型计算机实现熔宽自适应控制。     

The process of electroslag pressure butt welding

Many processes are used to join reinforcing bar (steel bar), but only afew of them, e.g. overlapping welding, gas pressure welding, thread joining, cold pressure sleeve joining, are able to be used on building sites because the conditions of building sites are very particular. First, the work of joining reinforcing bar is mobile, that is to say, it must be moved from one place to another after having accomplished one joint. So it demands that the welding equipment ( especially the welding head) must be convenient for moving. So it must be small and light. Second, the electricity capacity of the welding equipment can not be too large because the whole electricity capacity of a building site is limited. Third, the welding process ought to be simple because the situationog building sites is very poor and is on the open air. The more complex the process is, the more difficult the work will be. Fourth, the quality of the joint should be reliable and stable because it is impossible to check the quality of every joint, and there is no suitable way to do it even by now. For those reasons, the electros lag pressure butt welding has got great development recent years and is just suitable to be used on building sites to join vertical reinforcing bars. The articl e introduces its basic principle, processing, chief properties, and some testre sults.     

焊缝温度场红外扫描跟踪的研究

焊缝跟踪是焊接自动化的重要环节,在这方面国内外已进行了大量研究,并提出了多种焊缝跟踪方法。各种焊缝跟踪的核心是必须具备灵敏度高、抗干扰能力强、稳定可靠的传感器。由于在弧焊过程中有弧光、温度、飞溅及烟雾的干扰,给跟踪信息的摄取带来     

弧焊过程动态温度场检测的研究

本文提出了一种新型焊接过程红外热成象动态温度场检测方法、具有高速、直观、准确等特点。文中阐述了检测原理,给出了装置框图及实测温度场照片,并对温度标定进行了讨论。