送丝

The signal detecting circuit, the constant-speed wire-feeding circuit and the programmed control system during the short circuit of CO_2 welding are all designed and debugged in the dissertation.

本文主要对CO_2焊短路过渡中的信号检测电路、送丝电路和程序控制系统等进行了设计与调试。

The hardware circuit is made up by microcomputer controlling circuit, motor driving circuit, wire-feeding speed regulating circuit, arc welding power source main circuit, as well as the isolating, sampling, welding state identification circuit.

硬件电路由单片机控制电路、电机驱动电路、送丝调速电路、弧焊电源主电路以及隔离、采样、焊接状态识别电路构成。

In the experiments, when the power voltage varies from 342V to 418V, and the load from 25N to 50N, the variation ratio of the wire-feeding speed is small than 5%, which satisfies the JB/T9533-1999 professional standard.

实验证明，当电源电压由342V变到418V，负载从25N变到50N时，送丝速度的变化率小于5％，符合JB/T9533-1999专业标准要求。

MOTOMAN SK-16 arc welding robot system with YASNAC MRCⅡ controller, welding power, wire-feeding structure, cooling system, V-plank and preheat system, it can accomplish continuous welding for multi-nipple fillet-welds of power boiler header .

MOTOMANSK -16弧焊机器人配用YASNACMRCⅡ控制器、焊接电源、送丝机构、冷却系统、V形支架和预热装置，通过示教再现的方式可完成电站锅炉集箱管接头多个角焊缝的连续焊接。

With the depth development of the digital pulse MIG welding, the impact of welding technology by the wire-feed speed has been paid more and more attentions.

随着数字化脉冲MIG焊研究的深入，送丝速度对焊接工艺的影响得到了越来越多的关注。

The degree of spatter is dependent upon the composition and flow rate of the shielding gas, wire-feed speed, and the characteristics of the welding power supply.

飞溅的程度取决于保护气组成和流量、送丝速度和焊接电源的特性。

Should check and confirm delivery of the trench and wire wheel tooth profile intact, wheel, conductive mouth or wear poor contact should be replaced.

应检查并确认送丝滚轮的沟槽及齿纹完好，滚轮、导电嘴磨损或接触不良时应更换。

Usage and maintenance of welding and cutting machines(20)——Configuration and characteristics of CO_2 welder's wire feeder

在CO2 焊送丝机基础上增加了一级减速器，调速电路采用自行设计的测速负反馈控制系统。

Synergic pulsed MIG power sources, which are advanced transistor-controlled power sources, are preprogrammed so that the correct pulse parameters are delivered automatically as the welder varies wire feed speed.

协同脉冲MIG电源是先进的晶体管控制电源，它是预编程的，这样焊工在改变送丝速度时，自动输送出适当的参数。

The development of arc spraying system is introduced in this paper,which consists of main power supply ,spray gun and wire feeding unit.

电弧喷涂设备由喷涂主电源、喷涂枪和送丝机构3部分组成。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。