welding variable

A microchip controlled double pulsed variable polarity TIG welding power supply is designed.

研究设计了基于单片机控制的双脉冲混合调制变极性TIG焊接电源 .

Processing, Manufacturing and Construction Technology of Huge-span Variable Cross-section Bolt Welding with Steel Tube Arch Truss

大跨变截面栓焊结合钢管桁架拱肋加工制造施工技术

A novel variable polarity plasma arc welding ( VPPAW ) power supply is introduced in this paper.

介绍了所研制的具有自调整 换向 功能的大功率变极性等离子弧焊接电源.

A PI regulator with variable parameters is adopted for flexible and accurate current-waveform control, and the arc-voltage becomes robust against the variations of welding parameters.

本文采用变参数数字PI调节器，取得了好的脉冲电流波形控制效果，波形的一致性和可重复性好；弧压调节方法实现了在当前脉冲内即可控制弧压为给定电压。

This paper describes the fabrication arrangement in workshop, work flow design, principles of fabrication of the piles with spiral method and welding procedures for the piles with variable wall thickness.

介绍制桩厂生产布局、流程设计、螺旋法制桩原理和变壁厚钢管桩焊接工艺等。