Tungsten Copper Electrical Contacts

<!DOCTYPE html> <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <title>Tungsten Copper Electrical Contacts — Chinatungsten Online</title> <meta name="description" content="Tungsten copper electrical contacts have good resistance to arc erosion, mechanical wear, contact welding and good conductivity, which are usually selected for oil, gas, air or vacuum, devices."" /> <meta name="keywords" content="tungsten copper electrical contacts" /> <link rel="stylesheet" href="css/bootstrap.css" type="text/css" /> <link rel="stylesheet" href="css/web.css" type="text/css" /> <link rel="stylesheet" href="css/font-icons.css" type="text/css" /> <link rel="stylesheet" href="css/response.css" type="text/css" /> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta name="applicable-device" content="pc,mobile"> <link href="/favicon.ico" rel="shortcut icon" type="image/x-icon" /> </head> <body class="stretched"> <header id="header"> <div class="container clearfix"> <div id="primary-menu-trigger"><i class="icon-reorder"></i></div> <div id="logo"> <a href="index.html" class="standard-logo" data-dark-logo="image/logo-dark.png"><img src="image/logo.png" alt="Logo"></a> <a href="index.html" class="retina-logo" data-dark-logo="image/logo-dark@2x.png"><img src="image/logo.png" alt="Logo"></a> </div> <nav id="primary-menu"> <ol class="breadcrumb"> <li><a href="index.html">Home</a></li>  </ol> <ul> <li class="language"><a href="#menu">Menu</a></li> <li> <a href="order-process.html">How to Order</a></li> <li><a href="customer-service-chinatungsten.html">Customer Service</a></li>  <li><a href="#">Language</a> <ul> <li><a href="chinese/index.html">简体中文</a></li> <li><a href="big5/index.html">繁體中文</a></li> <li><a href="japanese/index.html">日本語</a></li> <li><a href="korean/index.html">korean</a></li> <li><a href="arabic/index.html">arabic</a></li> <li><a href="portuguese/index.html">Português</a></li> <li><a href="spanish/index.html">Español</a></li> <li><a href="language.html">更多</a></li> </ul> </li>  <li class="top-links"> <form action="search.html" id="cse-search-box"> <button class="btn" type="submit"> <i class="icon-search3"></i> </button> <input type="text" name="Search" value="" placeholder="Search..."> </form> </li> </ul> </nav> </div> </header> <section id="content"> <div class="content-wrap"> <div class="container clearfix"> <div class="postcontent nobottommargin"> <div class="single-post nobottommargin"> <div class="entry clearfix">  <div class="entry-title"> <h1>Tungsten Copper Electrical Contacts</h1> </div> <figure class="entry-image"> <div class="image-left"><img src="pic/tungsten-copper-electrical-contacts-17.jpg" alt="Tungsten Copper Electrical Contacts Picture" title="Tungsten Copper Electrical Contacts Picture" /></div> <div class="image-right"><img src="pic/tungsten-copper-electrical-contacts-10.jpg" alt="Tungsten Copper Electrical Contacts Picture" title="Tungsten Copper Electrical Contacts Picture" /> <a href="mailto:sales@chinatungsten.com;sales@xiamentungsten.com" class="button button-rounded button-reveal button-large tright"><i class="icon-angle-right"></i><span>Inquiry & Feedback</span></a></div> </figure> <div class="entry-content">  <p>Tungsten copper electrical contacts are subjected to extreme mechanical and thermal stresses during operation. For fractions of a second, temperatures rise to several thousand degrees as a result of the arcing. Only Tungsten Copper materials will stand these high temperature & aberration.</p> Tungsten Copper electrical contacts have good resistance to arc erosion, mechanical wear, contact welding and good conductivity. They are usually selected for oil, gas, air or vacuum, devices. The contact surfaces will oxidize when switched in air. These press-sinter-infiltrate materials should only be considered for arcing surfaces in air when used as arcing tips, arc plates and arc runners. When switching with moderate contact arcing, the Tungsten Copper with a high copper content may give the lowest erosion. As arcing severity increases, the Tungsten Copper with the higher refractory content withstand arc erosion better. Tungsten Coppers are also used as arcing edges of selector switchblades in transformer tap changers.</p> <p>They excel in these applications because they withstand the effects of the arcing incident to the interruptions of large current. Tungsten has the highest strength & melting temperature of the refractory metals. This is the principal factor determining the contacts resistance to arc erosion & mechanical wear. The strength, erosion & weld characteristics of the contact increase with increasing tungsten content, however the electrical & thermal characteristics decrease with the increasing refractory content.</p> <p> The high electrical and thermal conductivity of tungsten composites allows a cool, effective transfer of power, while the excellent arc-resistance properties of tungsten composites minimize arc erosion and transfer problems. These characteristics can be varied by composition—more silver or copper yields higher electrical and thermal conductivity, while a higher refractory metal content results in superior arc erosion properties. China Tungsten offers a variety of composites to meet your demands. Regardless of the environment (oil-filled devices, air and gas circuit breakers, contactors, high voltage switch gear) or the application (arcing contacts and plates, arc runners, current carrying members and blade facings), you won't be disappointed in electrical contacts made from Mi-Tech Metals' copper and silver tungsten composites.</p>  <div class="clear"></div> </div>   <div class="related-posts clearfix"> <h4 class="related-posts-more">Related Products:</h4> <div class="nobottommargin"> <div class="mpost clearfix"> <div class="entry-image"><a href="http://www.tungsten-copper-electrical-contacts.com/Tungsten-Copper-Electrical-Contacts-Properties.html" target="_blank"><img src="pic/Properties -of- tungsten -copper -contact.jpg" alt="Tungsten Copper Electrical Contacts Properties Picture" title="Tungsten Copper Electrical Contacts Properties Picture"></a></div> <div class="entry-c"> <div class="entry-title"> <h4><a href=" http://www.tungsten-copper-electrical-contacts.com/Tungsten-Copper-Electrical-Contacts-Properties.html " target="_blank">Tungsten Copper Electrical Contacts Properties</a></h4> </div> <div class="entry-content">Tungsten copper electrical contacts material is a composite of tungsten and copper. 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military throat insert is lining material of solid rocket motor nozzle, and its high temperature performance and ablation resistance directly affects the thrust and efficiency of the engine. </div> </div> </div> </div> </div>  </div> </div> </div>  <div class="sidebar nobottommargin col_last" id="menu"> <div class="widget widget_links clearfix"> <h4 class="accordion-toggle" data-toggle="collapse" data-parent="#menu" href="#collapseOne"><i class="icon-logo"></i>Tungsten Copper Electrical Contacts Information</h4> <ul id="collapseOne" class="accordion-body collapse in"> <li><a href="index.html">Tungsten Copper Electrical Contacts</a></li> <li><a href="Tungsten-Copper-Electrical-Contacts-Properties.html">Tungsten Copper Electrical Contacts Properties</a></li> <li><a href="Tungsten-Copper-Medium-Voltage-Electrical-Contacts.html">Tungsten Copper Medium Voltage Electrical Contacts</a></li> <li><a href="Tungsten-Copper-High-Voltage-Electrical-Contacts.html">Tungsten Copper High Voltage 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Tungsten Copper Electrical Contacts — Chinatungsten Online