It reported that there is radioisotope container from Daqing Drilling Logging Company get lost during Sep. 19~Sep.21, which is used for the drilling logging.

The municipal government and relevant departments in Songyuan, Jilin took an immediate response on this matter. The provincial and municipal leaders pay much attention to this situation, and have lead departments related to public security, environmental protection and health to take quick steps for searching. Environmental Protection Agency in Songyuan, Jilin sent an expert investigation team to solve that problem.

The lost containers containing radioactive isotope Tin 113 - Indium 113m, its height is 20cm, with a handle, and the logo “2” on the top of the blue tank. The activity is equivalent to class V radioactive sources with very low hazardous sources, but still may cause damage to human body if have been carried properly. If anyone pick up or find that, please don’t deal with it arbitrarily, make sure to contact the environmental protection department for help. The telephone for Songyuan radiation environmental monitoring station is 86 13904383542.

If tungsten material could be used for radioisotope container, then radiation from radioisotope would be absorbed and controlled effectively.

At present, the public security departments are trying hard to find the lost radioisotope container. The relevant departments are under investigation.

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.


 

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 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.

2. "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.