GTAW with wire device developed
Characterized by the speed control circuit to be guaranteed. Speed control strategy is currently the main circuit armature voltage negative feedback regulation mode and speed mode two kinds of negative feedback regulation. Transfer rate using the feedback approach. Since the control object is the speed, so not only can compensate for voltage fluctuations caused by speed changes, you can compensate for changing loads such as wire resistance changes caused by the speed, good stability, high wire wire feed speed are used negative feedback manner. Negative feedback speed governor shown in Figure 2. Figure 2 speed speed circuit diagram of negative feedback to design speed negative feedback speed control circuit shown in Figure 3. +5 V +24 V 3 speed governor circuit diagram of this transistor ~ WM PWM regulator mode, grating light lotus detector motor speed changes the wire into the pulse frequency, the frequency into the feedback signal input to voltage conversion IC F / v, F / v of the output voltage for a given signal comparison, the difference as a control signal through the integrated on-chip TL494 PWM pulse width modulation conversion, control v conduction duty cycle of transistor to control the armature voltage order to control the wire feed speed purposes. In addition, the printing of the motor supply voltage with 2 profile switching, low-speed wire O'clock from a +5 V power supply, high-speed wire O'clock Caiyong +24 v power supply, speed control circuit is always work to ensure a wide width section of the circuit improves the regulation of performance, thus further enhancing the stability of wire feed speed and accuracy. 3 will be doing performance testing of the circuit wire feeder and the transformation of the overall test, Figure 4 is the measured signal is given wire feed speed and wire feed speed of the correspondence. The figure shows,
ed hardy suomessa, the wire feeder wire feed speed adjustment range of 50 ~ 35OOfinn/rain,
ralph lauren polo, to meet the requirements of GTAW welding wire feeder to detect the resistance of the wire anti-jamming capability, 30. Production and application of welding, 2000 (4) - 10,003,500 Shan j1500l000 $ 000t23456T8910v, / v 4 wire speed signal corresponding to a given relationship I · 1.2 Die Zhang 90. If0.300nS030.6ll1. S223V, m-m. . Figure 5 wire resistance wire delivery-degree change in playing a given rate of voltage change, change the wire resistance,
franklin marshall milano, wire resistance for a step change from lON changed to 40N, measuring changes in wire feed speed, as shown in Figure 5 shown. The figure shows, the use of negative feedback control of speed,
ed hardy kläder, which can effectively suppress the interference of changes in wire resistance, low wire,
ed hardy, the wire feed rate remains steady, the rate of change in wire feed rate of 1.5% or less. The tests show that the entire system,
ralph lauren danmark, the wire feed welding system to meet the GrAw requirements. 4 Conclusion developed GTAW welding with wire feed systems, wire feed speed adjustment range 50-3500rmn/min, the net pressure fluctuations and a substantial change in wire resistance in the case, the wire feed speed rate of change remained at 1.5% or less , fully meet the Pulsed GTAW welding butt weld filler wire of intelligent control systems. References 1 Yin Shu-yan and so on. GMAW process [M]. Harbin: Harbin Institute of Technology Press. 19892 ZHAO Dong-Bin, etc. Pulsed GTAW filler wire weld pool is obtained with the negative image processing [J] Welding Journal, 1997, (12) Supplement :138-142. Complement each other and seek common development - into the welding of the welding equipment Industry Productivity Center and Guangzhou Sun Electrical Hardware Co., will establish technical advisory cooperation relations between the Secretary Guangzhou Sun Electrical Hardware Co.,
franklin and marshall uk, Ltd. After careful analysis and market research, in December 1999 and Chengdu Welding Institute Welding Equipment Industry Productivity Center technical advice to establish a friendly cooperative relations. The establishment of this partnership, while the manufacturers can be a good understanding of the welding machine industry developments, to adjust their product structure to adapt to the market,
ralph lauren skjorter, make the product marketable,
abercrombie paris, more important is to get strong support ; the other hand, the welding equipment for welding into industry productivity promotion centers, which can make use of information and technical advantages of the welding machine industry plants has contributed to the development and progress, but also for their own development laid the certain economic base. Technical cooperation in the process of consulting widely Electrical Hardware Co., Ltd. Sun thirty I will be welded into the technical staff to provide appropriate working conditions, as welded to a certain degree of consulting fees paid. Into the welding of the welding equipment industry Productivity Promotion Center for Electrical Hardware Co.,
abercrombie københavn, Ltd. Guangzhou sun establishment and improvement of basic management, technical and information services industry, new product development plant to help solve the technical problems encountered. One. Today's era is an era of information and technological development. Electrical Hardware Co., Ltd. Guangzhou Sun thoughtful approach to this is undoubtedly worthy of some industries plant reference. (Into the welding of the Peng Yaping)
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welding sequence
semiconductor
drying temperature of 200-300
good stability
Linear Mode
