Lanthanum tungsten electrode welding performance and conductive properties closest to 2% thoriated tungsten electrodes, and no radiological hazards, welders welding operation without changing any program can use this convenient alternative thorium tungsten electrode is an electrode, so lanthanum tungsten electrode become the most popular in Europe and Japan 2% thoriated tungsten electrodes alternatives. Lanthanum tungsten electrode is mainly used for DC welding, but for AC welding also performed well.

Lanthanum tungsten electrode manufacturing method relates to a method mainly used for TIG (tungsten inert gas welding) and PLASMA (plasma) technology for metal welding, cutting, spray coating, a melting method for manufacturing the tungsten electrode.

(1) using lanthanum acetate and including APT, WO3, and W powder of solid material made from a slurry of water mixed to prepare a lanthanum tungsten-coated powder;

(2) lanthanum lanthanum tungsten-coated powder decomposition of hydrogen atmosphere in the reduction process and simultaneously, a reduction temperature is controlled at 600 ~ 700 ℃, time is 2 to 3 hours, the second reduction temperature control 800 - 970 ℃, the hydrogen flow rate during the 0.5-2.0m3 / h.

10 / plastic box, the length is 150mm or 175mm, 1000  per carton.

Lanthanum tungsten electrode welding because of its good performance in the international welding industry concern. Lanthanum tungsten electrode conductivity closest WT20 thorium tungsten electrode. Therefore, welders welding operation without changing any program can use this convenient alternative thorium tungsten electrode electrode. This shift, whether in exchange conditions or under DC conditions are easier. Another advantage of lanthanum tungsten electrode performance at its current high durability and burning the minimum rate.


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The most common tungsten electrodes comprising lanthanum dioxide percent lanthanum, lanthanum oxide is known. In Europe and Japan, lanthanum tungsten electrode in most applications has been most commonly used to replace thoriated tungsten electrodes. Containing 2% lanthanum oxide, lanthanum oxide, lanthanum oxide, 1.5% and 1%, three. Lanthanum oxide has the lowest electron work function, arcing easiest tip temperature minimum, which helps to prevent grain growth, improve service life. By testing 2% lanthanum lanthanum tungsten electrode showed that: If no overload current, longer life than thorium tungsten, in most use arcing easier. Especially good (a) to prevent thermal shock, (b) short cycle repeated ignition welding case, the welding good (c) to avoid contamination. In welding pipes, welders lanthanum tungsten electrodes, especially for such satisfaction. Because long life to reduce downtime. And, in general case, it is 1.5% of lanthanum oxide to lanthanum tungsten electrodes, low current arcing and can easily stabilize the low current arc. Lanthanum tungsten electrodes in a rare earth, and no radioactivity. The lanthanum tungsten electrode is mainly used for DC welding, welding in the exchange will have a good effect. 1.0% lanthanum oxide containing tungsten lanthanum cerium tungsten electrodes are simultaneously appear on the market.

Content of 1.5% (with a difference of 2.0% concentration) lanthanum tungsten electrode has the nearest 2.0% thorium tungsten electrode demonstrated conductive properties, therefore, welding personnel can easily replace the electrode, rather than replacement of equipment parameters.

In 1998 there is a very famous field trials, is to 2.0% thoriated tungsten electrodes, 2.0% and 1.5% cerium lanthanum tungsten electrode tungsten electrodes at 70 Ann 150 amps, 300 volts DC environment for welding tasks, the result is In both cases, 1.5% lanthanum tungsten electrodes have demonstrated its excellent welding performance, but also reflects its small burn rate characteristics. Lanthanum tungsten electrode is also suitable for AC welding tasks, and performance excellence.


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characteristics as tungsten , makes it very suitable for TIG welding and other similar electrode material such work . In adding rare earth oxides of tungsten to stimulate its electronic work function , making the tungsten electrode welding performance can be improved : electrode arc better performance, higher stability of the arc column electrode burning rate is smaller. Usual additives earth oxide, cerium oxide , thorium oxide, lanthanum oxide, zirconium oxide and yttrium .

thoriated tungsten electrode : tungsten thorium oxide is added .

Thoriated tungsten electrode has the following advantages : lower electronic features , the higher the crystallization temperature , better conductivity , mechanical cutting properties

Thoriated tungsten electrode is a tungsten electrode material commonly used , it is also superior than that of pure tungsten welding performance , which is widely used in DC welding field . Thoriated tungsten electrode is simple , even when the overload current of the operation can be very good , there are still many companies use of this material , it is seen as a part of high quality welding . Thorium tungsten electrode during use , energy-saving effect is obvious, from the arc current 20-50% relative decline , the welding current is low , the process of using less prone to splashing , very easy to change the first round , the electrode life is longer. In the use of thorium tungsten electrode welding must maintain good ventilation , waste welding head to properly handle .

Thoriated tungsten electrode is a widely used additive oxide electrode , it is other than that of pure tungsten electrode and the oxide electrode is also advantageous to add the comprehensive welding performance in long-term use , it is the other oxide electrode irreplaceable . Thorium tungsten electrode is simple, current load, easy arc starting , stable arc, breaking the arc gap, low loss , long life, higher recrystallization temperature , conductivity better mechanical cutting performance. Thorium tungsten electrode is widely used in steel, stainless steel , nickel alloys and titanium welding, is a high- quality welding material of choice.


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Made of tungsten and thorium dioxide composed of tungsten alloy , referred to as thorium tungsten . Thorium dioxide content of the alloy used in the 0.7% to 2% . Thorium dioxide thermal stability, greatly enhanced tungsten alloy high temperature strength , the recrystallization temperature and high temperature creep properties , tungsten thorium further reduces the electron work function , and enhance the ability of the alloy thermal electron emission . Preparation of tungsten thorium alloys doped tungsten wire is similar . Thorium tungsten alloy wire as a heat emission of the filament and cathode tubes are widely used in thorium- tungsten alloy rod then as a variety of arc welding , cutting and arc electrode material caused . Tungsten- thorium alloy is an important drawback is that containing a radioactive thorium dioxide , in the processing and use of radioactive contamination.

Radioactive thorium tungsten electrode , its production and use of environmental pollution harm to human health and therefore need to be replaced new electrode products , rare earth tungsten electrode welding performance has been used as an alternative to thoriated tungsten electrodes attention is paid to review research group in rare Earth tungsten electrode course , through to rare earth element tungsten electrodes , binary composite rare earth tungsten electrodes , tungsten electrodes rare earth ternary complex research , the current through the Beijing tungsten & Molybdenum material Factory co- broke multiple composite rare earth tungsten electrodes industrialized production technology, the production of such electrodes .


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Thorium oxide doped tungsten , producing thorium tungsten electrodes . Specific data as follows :

Grades dopant doping color coating head

WT10 ThO2 0.90 ~ 1.20% yellow
WT20 ThO2 1.8 ~ 2.2% red
WT30 ThO2 2.80 ~ 3.20% Purple
WT40 ThO2 3.80 ~ 4.20% orange

Compared with pure tungsten material , thorium tungsten has the following characteristics :

* Lower * electronic functions in the crystallization temperature higher * Better conductivity * Mechanical cutting performance.

Thorium tungsten electrode is a common use of tungsten electrode material , it is also advantageous than pure tungsten welding performance , which is widely used in DC welding field .

Thoriated tungsten electrode is simple , even when the overload current of the operation can be very good .

Even so , people still gradually turns to other types of tungsten electrodes , such as tungsten and tungsten lanthanum cerium , not only because they are in most applications have shown excellent performance, but it is important that they do not radiate injury. Since thorium tungsten electrodes produce small amounts of radiation thorium oxide , making some welding personnel not go near them.

In the use of thorium tungsten electrode welding must maintain good ventilation , waste welding head to properly handle .


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Tungsten alloy swaging rod is made of tungsten alloy rod through calcinations. The normal method used in the processing are extruding, forging and sintering. After calcinations, tungsten alloy swaging rod has higher ductility, toughness and tensile strength than tungsten alloy rod, so it can be used for a longer time. Tungsten alloy swaging can be used for MILAN for its high density and high hardness.

MILAN is a European anti-tank guided missile. Design of the MILAN started in 1962. It was ready for trials in 1971, and was accepted for service in 1972. It is a wire guided SACLOS (Semi-Automatic Command to Line-Of-Sight) missile, which means the sight of the launch unit has to be aimed at the target to guide the missile. The MILAN can be equipped with a MIRA thermal sight, or MILIS to give it night-firing ability.

MILAN is a French and German missile that has been license-built by Italy, Spain, Britain and India. As it is guided by wire by an operator, this missile can avoid most countermeasures (flares and chaffs). The drawbacks are its short range, the exposure of the operator, and that it requires a skilled and well-trained operator.

With high density and high hardness of tungsten alloy swaging rod, MILAN can penetrate the armor and destroy tank and other heavily-armored vehicles.


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Tungsten alloy swaging rod is made of tungsten alloy rod through calcinations. The normal method used in the processing are extruding, forging and sintering. After calcinations, tungsten alloy swaging rod has higher ductility, toughness and tensile strength than tungsten alloy rod, so it can be used for a longer time. Tungsten alloy swaging rod can be used for HJ-8.

The HJ-8 or Hongjian-8 is a second generation tube-launched, optically tracked, wire-guided anti-tank missile system which was originally deployed by the People's Liberation Army since the late 1980s. Pakistan produces this missile system under licence as the Baktar-Shikan at Kahuta Research Laboratories. It is able to defeat explosive reactive armour (ERA).

HJ-8 used tungsten alloy swaging rod as its warhead to hit and destroy tank and other armor vehicles.


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Tungsten alloy swaging rod is made of tungsten alloy rod through calcinations. The normal method used in the processing are extruding, forging and sintering. After calcinations, tungsten alloy swaging rod has higher ductility, toughness and tensile strength than tungsten alloy rod, so it can be used for a longer time. Tungsten alloy swaging rod can be used for BGM-71.

The BGM-71 is an anti-tank missile. First produced in 1970, BGM-71 is one of the most widely used anti-tank guided missiles.

Initially developed by Hughes Aircraft between 1963 and 1968, the XBGM-71A was designed for both ground and heli-borne applications. In 1997, Raytheon Co. purchased Hughes Electronics from General Motors Corporation, so development and production of TOW systems now comes under the Raytheon brand. The BGM-71 wire-guided heavy anti-tank missile is produced by Raytheon Systems Company. The weapon is used in anti-armor, anti-bunker, anti-fortification and anti-amphibious landing roles. BGM-71 is in service with over 45 militaries and is integrated on over 15,000 ground, vehicle and helicopter platforms worldwide.

With the high density and high hardness of tungsten alloy swaging rod, BGM-71 can hit and destroy tank and other armor vehicles.


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Tungsten alloy swaging rod is made of tungsten alloy rod through calcinations. The normal method used in the processing are extruding, forging and sintering. After calcinations, tungsten alloy swaging rod has higher ductility, toughness and tensile strength than tungsten alloy rod, so it can be used for a longer time. Tungsten alloy swaging rod can be used for anti-tank missile.

Anti-tank missile is a guided missile primarily designed to hit and destroy heavily-armored military vehicles.

Anti-tank missile ranges in size from shoulder-launched weapons, which can be transported by a single soldier, to larger tripod-mounted weapons, which require a squad or team to transport and fire, to vehicle and aircraft mounted missile systems.

With the high density and high hardness of tungsten alloy swaging rod, anti-tank missile can hit and destroy heavily-armored military vehicles.


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Tungsten alloy swaging rod is made of tungsten alloy rod through calcinations. The normal method used in the processing are extruding, forging and sintering. After calcinations, tungsten alloy swaging rod has higher ductility, toughness and tensile strength than tungsten alloy rod, so it can be used for a longer time. Warhead of AGM-114 is made of tungsten alloy swaging rod.

The AGM-114 is an air-to-surface missile (ASM) developed primarily for anti-armor use. It was originally developed under the name Helicopter Launched, Fire and Forget Missile, which led to the acronym 'Hellfire' that became the missile's formal name.[2] It has multi-mission, multi-target precision-strike capability, and can be launched from multiple air, sea, and ground platforms. The Hellfire missile is the primary 100 lb-class air-to-ground precision weapon for the armed forces of the United States and many other nations, and is considered a proven tactical missile system, as it has been used in combat since the mid-1980s.

AGM-114 is a comprehensive weapon system that can be deployed from rotary- and fixed-wing aircraft, waterborne vessels and land-based systems against a variety of targets.

With the high density and high hardness of tungsten alloy swaging rod, AGM-114 can penetrate the armor and destroy the tank.



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