Welding power, welding, Laoding Wei large supply of passenger Lincoln welding accessories

Renqiu 劳丁威 off Welding Equipment Co. (www.fiveelement.com.cn) is located in Renqiu City, Hebei Province, North Central Economic and Technological Development Zone, Contact: Wang Zhen welding (electric welding machine) is actually external characteristics of transformers has declined, the 220V and 380V alternating current into low voltage DC, welding generally based on the output power can be divided into two types, one is the AC power; one is DC. DC welding machine can be said is a high-power rectifiers, welding principles of positive and negative points, AC input, after transformer transformer, then rectified by the rectifier, and the output power has decreased the external characteristics of the output terminal in turn and time off will have a huge change in voltage, bipolar ignite the arc short circuit in an instant by an arc generated by melting and welding consumables, cooling and later combine them to achieve the goal. Welding transformer has its own characteristics, external characteristics that after a sharp decline in the electrode ignition voltage characteristics. Renqiu Laoding Wei passenger Welding Equipment Co., Ltd. (gun factory) engaged in long-distance pipeline welding equipment and related auxiliary equipment for production and sales. 2012 Hong Kong International Electrotechnical Co. Fine become our strategic partner, joined forces to conduct a joint welding domestic prices, international welding equipment market. Since its inception. Relying on strong capital and technology strength. Professional production and testing equipment. Excellent after sales service. Obtain the customer's approval recommendation. Company in accordance with ISO9001: 2008 standard established a sound quality management system. And through the China Compulsory Certification (CCC certification). CE compliance with EU safety standards. Cooperation Case: a pipeline company East West second 25 tenders. Central Asia Pipeline B line construction. A line of the Central Asian pipeline construction. Pipeline company astringent ninglam four pipelines. Uzbekistan body welding project. Two companies piggy bank Lanzhou pipeline project. West Second West 7 tenders. Lot 5 astringent ninglam bifurcated body welding. A section of the Ukrainian national body welding line B Lot. Three largest oil pipeline company desert pipeline project four tenders. Lan Zheng long pipeline. Etc. pipeline construction welding consumables. Cautious attitude towards each product details. Pious attitude to treat every customer requirement. On general DC inverter welding machine panel has a DC output current adjustment knob. First, the single-phase AC inverter DC welding machine or 220V three-phase AC voltage 380v voltage bridge rectifier, filter, and then supply power inverter switching device processing. The first use of a small number of inverter welding machine circuit 555 and other pulse generating circuit generates a rectangular pulse, re-use welding power transistor current amplification, followed by a pair of complementary FET voltage amplification, resulting in a high-frequency signal, and finally the use of step-up transformer is boosted to obtain a secondary winding on the AC induction. Its size depends on the power amplifier circuit amplification capability.