Accelerate the oxidation of tungsten, seriously shorten the life of the product, resulting in product failure

Tungsten halogen lamp with a key piece for the electrodes, tungsten and key pieces connected by spot welding, glass bulb filled with hydrogen, platinum plate and a glass full sealing at high temperatures to form tungsten halogen lamps. Tightness after sealing a direct impact on the life of the lamp. The quality of the products examined the strange, often found in air bubbles in the glass sealing surface Swiss platinum pieces, about 20% of total production. Gas tube leak caused the emergence of satiety, while accelerating the oxidation of tungsten, severely  copper molybdenum  of the product, resulting in product failure. In order to find out the reason for the gas saturation and gas saturation of the proposed measures to prevent, paper, failure analysis methods applied spectroscopy, scanning  Tungsten copper alloy  and transmission electron microscopy and other means to conduct research on a seal platinum chip sealing in high temperature and glass. The results showed that when aluminum and glass at high temperature sealing, are key causes of the bubble sheet internal inclusions and gases, the paper also presents how to prevent bubbles.

Deep red photo selection method blanking die and die thermal insulation and electric heating to an aluminum plastic brittle transition temperature above

Pure eight key pieces often pass deep red 38mm diameter used in the manufacture of thin-walled tubes of 45mm length, blanking round billet diameter 13omm. To reduce cracking tendencies, aluminum and aluminum deep drawing process will be a key piece stamping tools plastic is heated to a brittle transition temperature. To reduce the impact and  Tungsten copper alloy  and delamination of the key blank blanking die was modified. Polishing the flat punch with a rounded "V"-shaped concave surface, the "V"-type concave. Aluminum blade to shear loads. Two deep red photo selection method blanking die and die thermal insulation and electric heating to an  sandblasted tungsten target  brittle transition temperature. With this tool on the flywheel screw press can be easily cleaned without generating cracks round billet and the blanking operation and less laborious. Pat sector found in a platinum sheet manufacturing, particularly during cold rolling, the occurrence of the event that the incorrect heat treatment of any form of recrystallized material will be suitable for deep drawing.

Department of tungsten and molybdenum from the melting point, high hardness of the metal tungsten

Department of tungsten and molybdenum materials different from each other by a high melting point, tungsten high hardness and high ductility , high conductivity copper metal composed of a two-phase composite material dissolved . It combines the respective properties of tungsten and copper , such as high temperature strength , high electrical and thermal conductivity , good resistance to galvanic corrosion resistance, high hardness, low thermal expansion coefficient and a certain plasticity . Further, by changing the composition ratio , control and adjust its respective  tungsten carbide rods  mechanical and physical properties. In addition , it has a new combination of properties due to the generation of both , as it is under high temperature conditions due to the cooling effect of evaporation from the copper contained in the endothermic generated . Therefore , it can be widely used in aerospace , electronics, machinery , electrical and other industrial sectors , especially in some high-tech fields. Tungsten copper material appeared since the 1930s of the last century , in a long time mainly used all kinds of  tungsten electrode  switch electrical contacts . Precisely because of its high strength and low withstand voltage electrical ablation performance , so as to promote the continuous improvement of high-voltage electrical switch voltage levels and use the power of their use, and high-voltage electrical switches become indispensable key material . To the sixties of the last century before , tungsten copper material and gradually as the electric resistance welding and machining of electrodes and space technology as contact with hot gas began to use high-temperature materials .

According to the characteristics of materials, the application of different processing material W and the preparation method of the case

According to the characteristics of tungsten materials, processing materials , different applications have traditionally divided into three categories of cases and preparation methods : ① pure tungsten and tungsten alloy products in the usual sense , including pure tungsten, doped tungsten, tungsten male , ornaments tungsten and tungsten alloys Lai , whose main products are wire and rods . This is the largest tungsten processing timber species and number of a class of products . ② The second category is a high -density tungsten alloy , mainly of tungsten and tungsten nickel-copper- nickel- iron two series , its application is the use of its high density and high strength properties. ③ The third category is tungsten, copper,  tungsten carbide plate  material, particularly tungsten, copper materials, processing materials are tungsten relatively small amount of a class of article , however , there is considerable development in recent years . In recent decades , tungsten copper material , whether done a lot of work from the application, production and  tungsten balls  , and has made many significant progress : Before the 1960s , most of the products are as high tungsten copper , medium voltage electrical switch electrical contacts using a small amount used for resistance welding electrodes ; 60 to the beginning of the last century, the 1970s , the development of EDM , because tungsten copper material excellent resistance to spark erosion effect , and gradually began to be used as electrical spark electrode material processing machine , to the last century, 80 to 90 years , widening their application and mature , a significant amount of growth in the application ;

Tungsten and tungsten silver material, like copper material, but also a fake alloy

Tungsten and silver materials composed of two elements. Tungsten and tungsten silver material, like copper material, but also a fake alloy, its preparation method and tungsten copper materials similar. Tungsten silver conductive materials, thermal conductivity than copper tungsten material is good, other properties similar.  sandblasted tungsten target  silver material made ​​of copper materials are simultaneously used as electrical switches and contacts (contacts) in the 1930s. The late 1950s, the development of  tungsten electrode  rockets, gas temperature and pressure greatly improved, pure tungsten rocket nozzle can not meet the original use of such conditions, when other materials can not meet the requirements.

Jiangxi Anyuan urged the rare earths, molybdenum and other industrial projects to take root

 2013 年 3 月 19 日 Jiangxi Nonferrous Recently, An Yuanming of the company's new 3000 t Zirconia ultrafine powder production line technological transformation project was officially completed trial production; investment exceeds 200 million yuan, annual output of 1,000 tons of molybdenum plating metal products deep processing project officially settled in Anyuan, put into profits and taxes 100 million yuan or more. CNMn. It is understood that Anyuan County scientific planning, meticulous planning, urged industrial projects to take root. CNMn.
Based on rare earths, molybdenum, tourmaline and other advantages of resources, combined with Gan South Sioux district revitalization and development project preparation and reporting requirements, establish and improve the county's project library, focus on a number of planning and preparation involved in infrastructure construction, industrial development and other areas of major projects. CNMn. In order to promote projects to take root, major projects to strengthen the county's investment work in Dongguan, Shenzhen and other places held investment promotion, actively carry out the project docking and tracking contacts, to further improve the services and project management mechanisms, good enterprises in the project put into operation in the process of land acquisition, labor, construction and other aspects of the coordination of services. CNMn. Currently, a group involved in bio-pharmaceuticals, tourism products deep processing and other aspects of major projects have been contracted or floor construction. CNMn.

accelerate the development of a large international conglomerate molybdenum industry

Guo Guanghua recommended the development of national industry development plan molybdenum industry , strengthen the government's macro -control efforts , introduced to promote the integration of the molybdenum plating industry enterprises preferential policies ; in Molybdenum production , strict implementation of the national " molybdenum industry access conditions" of the relevant provisions in the production process should be used in line with national environmental regulations dust , dust collection technology and exhaust comprehensive recycling process to ensure that emissions meet national standards ; accelerate the development of a large international conglomerate molybdenum industry , the introduction of some of the key industrial enterprises tilt Molybdenum crucible industrial policy, measures, programs , through industry consolidation to achieve production capacity to the advantage of enterprises to focus and guide product mix to higher value-added processed products tilt. CNMn.
Enterprise development is inseparable from the support and help local governments , which , Guo Guanghua deep feelings . CNMn. Therefore, his third proposal is "on the financial funds exempt from corporate income tax proposal ." CNMn.
Guang-Hua Guo believes that the financial funds to run as a government to regulate the economy an important economic lever , adjust the industrial structure , optimize resource allocation direction , balance regional differences play an important role. CNMn. At present , all levels of government and relevant departments every year to financial assistance , subsidies, interest payments on loans and other types of financial support in the form of special funds to enterprises, especially SMEs. CNMn. He suggested that in order to better play the financial funds of the enterprise reform and development support, advice fiscal funds exempt from corporate income tax , so that the funds play a larger role