The First Step: An elongated strip through the mold pipe
 
The Two Step : Wegmentation, typically 60mm or 400mm length
 
The Third step: Clear, drying, filling, sealing
 
The Fourth step: Testing, packaging, storage
 
Note: 1, The matrix preheat; 2, Flame size; 3, Welding distance; 4, Electrode angle.
In the process of welding strict compliance: oxygen and acetylene bottles can not be put together in order to prevent dangerous!

State Administration of Taxation reported anomalies appear for export tax rebates recently issued "on the strengthening of some of the goods export tax rebate audit," which called for efforts to strengthen the export tax rebate audit of raw materials such as silver, tungsten circuit parts and raw materials for welding parts products.

Recently Research Ministry formulated the "tungsten, tin, antimony smelting enterprise access Announcement Interim Measures," around the MIIT department of tungsten in the region, tin, antimony smelting enterprise access Announcement application and reported the Ministry of Industry, the experts on the application materials for review, the focus sampling and publicity after the Ministry will publish the announcement in the form of a list of companies fulfill the access conditions.

In 2009, Fujian Science and Technology Awards Conference held on March 16 this year, director of the National Engineering Research Center of tungsten materials, Xiamen Golden Egret Special Alloy Co., Ltd., Wu Chong Hu, vice president of science and technology, Fujian Xiamen Tungsten Co., Ltd. obtained significant contribution Award, outstanding Technical talent Award Fujian Province, Science and Technology Award in Xiamen, Fujian Province, known as the technology sector, "the cow".

Chonghu Wu Xiamen Tungsten Group is one of the founders lifetime in dealing with tungsten is China's leading tungsten smelting and carbide experts and industry leaders have repeatedly presided over the completion of the national "863" plan, the State Torch Program, national key new product plans, national Science and Technology support Program and Xiamen major industrial projects, and achieved significant technological achievements 10 The remainder, patented and national, provincial and municipal science and technology awards a number of inventions.

Chonghu Wu Equipment innovation is still much higher than after the introduction of the transformation capacity to raise the level of 2-3 times the energy consumption is reduced three percent, "which makes top experts in the field of foreign tungsten surprised, they wanted to find ways to buy our equipment," now the world's five largest companies want to stake Carbide spoonbill.

There are micro-Bo said, "Someone took the Industrial and Commercial Bank of China sold one kilogram of gold with gold and silver certificates and invoice processing plants to sell to get verified indeed ICBC sold factory boss received, accurate test the purity of gold must go to Nanjing, If the report comes a week after the bullion doped "Iridium".

Jiangxi University professor eighth National Congress, led chaired by his "white (black) tungsten ore preparation of ultra-clean and efficient high-performance tungsten powder sets of technology and industrialization" project research results at home and the first to achieve the industrialization of tungsten "Green smelting" changed the Chinese tungsten smelting position in the international arena.

Professor Wan Linsheng for the low yield of tungsten metal industry, high smelting costs, waste of resources and serious environmental pollution, APT can not produce high-performance powder, which seriously hampered the international competitiveness of China's tungsten industry and sustainable development, this major the key question, which lasted 20 years, systematically studied the crystallization kinetics of APT, independent research and development "APT physical control" and "low-alkali efficient decomposition", "blur exchange - super desorption", "mother caustic crystalline transformation - depth deaminase" "dual exhaust backflow vortex crystalline ammonia condensation "five core technology at home and abroad for the first time in black and white tungsten ore efficient and clean preparation of ultra-high performance industrial production of tungsten powder. Independently designed and built the world's first largest annual 15,000 tons APT, tungsten nanoscale tungsten powder and tungsten carbide powder smelter.

June 5, 2012 in the afternoon MLR website published an article from the headline, "China Land and Resources News" - "Birth of the world's largest tungsten mine - Jiangxi Grand HUTANG tungsten ore prospecting to achieve major breakthroughs in the ins and outs." this article is about the exploration bureau with 18 months of proven reserves of 1.06 million tons of tungsten metal process ore, but when the news media outlets after the section heading into the "world's largest tungsten mines birth: Xiamen Tungsten voted 2000000000 unearthed 300 billion. "The news triggered a great concern, investors are optimistic about the company's share price indicates. But on June 6, Xiamen Tungsten timely clarification allows companies involved in mining but failed to rally, investors are dissatisfied with the media have also questioned.

Ganzhou Rare Earth Kingdom and the world is known as tungsten, its rich underground mineral make this reputation is not loud in the central city has become the focus of attention of the capital markets and listed companies located in Chapter Tungsten Ganzhou Chongyi County abounds here a rare non-ferrous metal tungsten.Ganzhou high quality wolframite accounted for 60% ownership in the world, this chapter Tungsten private enterprise is the only region in the entire Ganzhou a listed company.
 
Under the leadership of the local reporter drove to the chapter Tungsten Taoxikeng most likely to produce contaminated mine tailings reservoir, the words "protection of Chapter Jiang Yuan," the placard on the edge, but reporters saw the pale of muddy water rushing away without pausing downstream from the dam embankment gap, sewage treatment here is obviously just a slogan. And what makes the reporter concerned about is where this sewage flow.
 
We see from the map, chapter Tungsten mine location is the source of the river chapter, while Jiang and Zhang Gong Jiang Gan River formation in fact, that is the direct source of the mother within range in Jiangxi Tungsten Mine Chapter sewage . Reporters go all the way down the river and found the tailings discharged from industrial wastewater in the meandering flow of a long way, water is still cloudy.

In addition to the pollution problem in Chapter Tungsten is also important to note that its tailings security issues, on national slag tailings and waste consisting of strict regulations which states that more than one million cubic meters of tailings are more significant risk source tungsten Shi Lei and Zhang tailing design capacity reached 1.06 million cubic meters, but in such a major hazard site, started to run every aspect of the process even in violation.

First look at the site, Lei Shi tungsten ore tailings dams, taking up Dayu County town of former left-pull tug left the river, and even the original does not belong to the river where flooding is now turned into one, which stands roots poles in the water seems to tell us of this change, and local residents have long complained of this. "
 
Information obtained by reporters, the time of Jiangxi innings tailings design safety review by the November 23, 2006, but not as early as ten days before the formal adoption of the (Nov. 11), tailings has started a; and when November 15, 2008 has been the subject completed the trial run, there is no declaration of final acceptance to the authorities. This means that the start and completion of the Chapter Tungsten Lei Shi tungsten mine tailings are illegal operations.