Tungsten Carbide Inserts: Leaping Development of Manufacturing Field

Tungsten carbide is a very high hardness materials, cutting tools are mainly used in metal cutting has been widely used. In the machinery industry, mentioned alloy steel or tungsten carbide generally refers to such materials. Carbide cutting tools can be harvested many advantages. Compared to high speed steel cutting tools, in most cases, the use of carbide cutting tools can be harvested only workpiece surface quality is better, but also to obtain higher processing speeds; Carbide Tool can withstand higher cutting heat, which is that it can achieve a higher metal removal rate of the main reasons. When the workpiece machining high-alloy steel or stainless steel such easy processing, or in mass production and capacity expansion of the occasion, a case such as high-speed steel cutting tool wear easily and quickly, using conventional carbide tools can make cutting performance better.

Tungsten carbide cutting tools for metal cutting industrialization began in the nineteen thirties. Since then, it has evolved into carbide by far the most common tool materials. The relatively small size of carbide cutting tools are often made of a whole; only non-solid carbide cutting tools with carbide in the cutting area. Early non-carbide solid carbide tools tend to be welded to the cutter body. To the 1940s, carbide cutting tools manufacturers began producing holding interchangeable machine folder blade cutter, and benefit. Compared to the earlier welding tool, this brain-hole wide open to technological innovation and the use of mechanical clamping structure makes the tool more strength, which has now been recognized as a landmark invention, not only in the field of tool manufacturing further comprising bringing advanced and efficient process for the entire metalworking industry.

The considerable progress in the field of manufacturing opened up vast room for improvement, and immediately increase the carrying capacity of the tool, the tool has the ability to make rapid removal of metal. Replace the blade becomes more simple and cost reductions made to protect the economy, but also makes it possible to separately manufacture cutting module and the cutter body except for the blade failure due to wear or breakage failure. Replace the blades often need to consider the shape, quickly replace the failed cutting edge in several ways, in addition to the blade along the central axis indexing, there are also cases reversed blade front and back. Today, the most recognized industry wide dissemination of "indexable" the title, once also known as: the disposable tip, replaceable blade, replaceable blade.

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Tungsten carbide indexable insert production technology based on powder metallurgy technology, the production process is as follows: Preparation of carbide mixture, pressing, sintering, sintering treatment step and coating. Despite decades or more basic process remains the same, but at the same time from the progress of science and technology but then blade manufacturing had a significant impact.

Until the 1980s coated carbide grade has not yet appeared. At that time, such that carbide can be common to the processing of different engineering materials, tool manufacturers by adding different additives (such as a hard phase or a metal additive) to the preparation of different carbide grades. Coating technology adoption has greatly promoted the development of the global machinery industry; the vast majority of today are coated carbide grades. This new technology also brings additional benefits, so some special grades can be processed a certain class of materials to be processed. You do not need to add many kinds of cemented carbide substrate additives; This reduces the cemented carbide substrate grades, production process control more stable.

PVD coating in the late 1980s is introduced into the carbide production. PVD coating because at the nanoscale coating areas to overcome the manufacturing of many problems to achieve a breakthrough in the development. PVD coating thus providing a new level of higher wear resistance nano-coating. Compared to conventional PVD coating manner coating as shown by a maximum of 50 nm (nanometer) coating composite, it has been shown to greatly improve the binding strength of the coating.

Tungsten carbide blade production progress technologies from several areas of development. More cutting-edge technology of pressing, sintering technology, coating technology and post-coating technology, more diverse surface treatments can be carried out on the cutting edge of the blade more optimized manufacturing process together make indexable inserts can provide modern metal processing industry to provide more suitable to meet their needs efficient processing solutions.

 

Tungsten Trioxide Nano Plate Catalyst to Improve Solar Energy Conversion Efficiency

Solar energy is a very attractive green energy refers to solar thermal radiation, which the main manifestation is often said of sun's rays, and generally used in modern power generation or to provide energy for water heater. In the case of diminishing fossil fuels, solar energy has become an important part of human use of energy, and continues to develop. The usage of solar energy can be divided into two ways of photothermal conversion and photoelectric conversion, and solar power is an emerging renewable energy. However, for enhancing the solar energy conversion efficiency and storage capacity is still a long way to go.

tungsten trioxide photosolar cell picture
 
Recently, researchers from the University of Twente have found that chemical conversion of solar energy can be greatly accelerated by coating platinum particles on a special nano-plate. This nano flat catalyst is based on the tungsten trioxide nano-sized crystal structure which has a strong absorption capacity of light, to deposit the stronger light absorbance of platinum particles on the active surface of tungsten oxide through a special technique, thus greatly improve the solar energy conversion efficiency. Although this particular technology is not yet mature, and platinum coated particles can not be evenly distributed in the surface of the substrate, but the idea has provided a huge boost for the development of solar cells.
 
Tungsten trioxide (WO3), yellow powder, is an N-type transition metal semiconductor material, with special electrochromic, photochromic, gasochromic, gas sensitive and catalytic properties to be widely used in high-tech field. Tungsten trioxide has a wide range of applications in the catalyst, i.e. as a co-catalyst in SCR denitration catalyst, to play the role of anti-sulfur poisoning of catalyst, anti-sintering of the carrier; in the photocatalytic field, tungsten trioxide photocatalyst exhibits excellent performance in hydrogen production and oxygen evolution, and organic matter degradation by means of doping rare earth metals, composite semiconductors ect..

 

Incandescent Lamp Ending, LED Lamp New Era

In China, eyes of the night over several decades, incandescent lamps announce its ending on Oct. 1, 2016. The announcement of “China Phases out Incandescent Lamp Timeline” by Development and Reform Commission of the People’s Republic of China says China will forbidden import and sale incandescent lamp over 15W since Oct. 1, 2016.

incandescant lamp image

I Incandescent lamp phasing out timeline

Nov. 1, 2011 ~ Sep. 30, 2012
Transition period. The importer, seller shall be prepared working on elimination in accordance with the requirements of the government.

Oct. 1, 2012
The importing and selling of incandescent lamps over 100W are forbidden.

Oct. 1, 2014
The importing and selling of incandescent lamps over 60W are forbidden.

Oct. 1, 2015 ~ Sep. 30, 2016
Mid-evaluation period, based on the preliminary policy evaluation, the adjustment policy will be issued.

Oct. 1, 2016
The importing and selling of incandescent lamps over 15W are forbidden.

LED takes over incandescent lamp image

II Policy issuing

In Second half of 2006, the International Energy Agency released a report on the global lighting energy use noted that in 2005, total consumption of incandescent power terminal is 970 billion degrees, accounting for 37% of the global lighting electricity, equivalent to the carbon dioxide emissions of about 5.6 one hundred million tons. If the lamp phases out since 2008, it saves 38% of electricity for lighting until 2030, equaling to the cumulative reduction of 16.6 billion tons of carbon dioxide emissions.

Australia has been the first country to issue incandescent lamps phasing out plan in Feb. 2007. New Zealand, Germany, Portuguese and other tens of countries are put forward the same plan. So is China in 2011.

LED takes over incandescent lamps picture

III LED lamps taking over incandescent lamps

LED lamp and energy-saving lamps have taken over the ineffient lamps and have been the main force in lighting industry. The manufacturing cost has been decreasing a lot since 2011 for the increasing quantity used in families. In order to improve the use of LED lamps, government subsidies, discount provided, offered as premiums. Hard work pays off. The LED use rate is going up from under 10% in 2011 to 32% in 2015. it is expected to be 50% in 2020.

tungsten and molybdenum products in LED wafer growth furnace picture

IV Will Incandescent lamps over filaments

Incandescent lamps are one of the main applications of tungsten filament. However, the ending in China will promote the exporting of filaments and lamps. Meanwhile, tungsten wire will create its new application areas, but not limits in inefficient lamps.

V Popular use of LED will increase the apply of tungsten and molybdenum products

Due to the universal of LED lamps, the furnace to growing LED sapphire wafers consumption will increase to a new high. At the same time, tungsten and molybdenum products, including crucibles, heating elements, heating field, sheet shield, will be required in a large number. Thus, an ending era of incandescent lamps is a new start for tungsten and molybdenum materials.

 

Tungsten Carbide International Fair will be Unveiled at Shanghai

Tungsten carbide 2016 Shanghai International Expo area of ​​30,000 square meters, is expected to reach more than 500 domestic and foreign exhibitors, professional audience of 30,000 people attended the Shanghai International Expo tungsten carbide is the tungsten carbide areas set product launches, technology exchange and business cooperation in one of the professional event.

1. The establishment of an international brand exhibition, high-tech products, technology, the first to release
Many well-known manufacturers at the show site will publish new equipment, new technology, new materials, allowing you to buy better assessment; open the current Shanghai International Expo Exhibitors List Tungsten carbide, we clearly feel Shanghai International Hard alloy Expo brand cohesion remains unsurpassed: Chinese and Japanese Han Qicheng more than well-known brands, as well as a growing number of overseas famous brand in here, both industry leaders, have extraordinary potential rookie. Include: Kim Shin Zigong, Zhuzhou Lihua, accessible Zhuzhou, Zhuzhou Maoxiang, Zhuzhou Kim Shin, Xiamen Tungsten, Jiujiang spoonbills, Renqiu forward, Shanghai Grand Holcim law, Yueqing source, the Shanghai Research Institute of Materials, Jinan metallurgy Sciences Co., Ltd., Hai Keli special alloy tool and die development Co., Ltd., Taiwan and the United States Yang technology, Xin Matilda, Hunan Dingli technology Co., Ltd., Weihai Wei hard, German PTV, Chen Hao Shanghai composite materials Co., Ltd., Shenyang Heng Jin vacuum Technology Co., Ltd. SGL specialty graphite (Shanghai) Co., Ltd., France Kay Pu Technology Group Shanghai office, Shanghai Oriental carbon Co., Germany Conner KonradFriedrichsTungsten carbide (KFC), Tokai carbon Yao and many other well-known enterprises.

tungsten carbide products2. "Three Exhibition Linkage" comprehensive interpretation of the metal processing industry chain event
Shanghai International Expo tungsten carbide through continuous upgrading of hardware and software, to optimize the structure of display, in October this year the show will be a new attitude in full bloom, become more popular Tungsten carbide industry event! Tungsten carbide Shanghai International Expo, Shanghai International cutting tools and equipment Exhibition and Shanghai international Exhibition abrasive grinding processing technology exhibition three linkage, will be held in Shanghai World Expo Exhibition October 11.

3. Professional forum the industry heavyweight mystery guest to visit the site
Over the same period will be held 2016CCME finishing Technology Forum and Shanghai International abrasive grinding technology seminars, conferences and adhere to the public nature of dry-based technology, is committed to providing various forms of flexible integration to share trends, the development of Internet technology and the latest developments, assess the latest trends in technology and operations; for technical, research and development personnel, business operators to explore new ideas, look for effective research.

4. 300 domestic and foreign media, broadcast throughout the show dynamic
Shanghai International Expo tungsten carbide and tungsten carbide gathered 300 domestic user industry media reached a strategic cooperation to form a public authority magazines, newspapers, websites, television in one powerful propaganda line-up, with the professional league to reach interactive media, publicity and promotion efforts Show information, to achieve aggregation of dissemination of information, to attract more audiences and downstream industry professionals attending the event, exchange, purchase.

Tungsten carbide 2016CCME Shanghai International Fair will be adhering to the "professionalism, effectiveness, quality, service" four exhibition service standards, more effort to build the field of Tungsten carbide exclusive event.

 

Tungsten Alloy Warhead Pushes R& D of Loitering Missile

tungsten alloy warhead imagetungsten alloy warhead image

The new concept of ammunition is one type of organic combined products from UAV (Unmanned Aerial Vehicle) technology and ammunition technology, which has strike, correspondent, target, monitor and other air alert functions.

Read more: Tungsten Alloy Warhead Pushes R& D of Loitering Missile

 

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