In June 7, 2016, China Tungsten Industry Association, the sixth of nine Bureau meetings held in Chaozhou. The meeting analyzed the current tungsten market situation and reached consensus on stable market. Besides, the meeting examined and adopted the China Tungsten Industry 13^th Five Years Plan and other relevant resolutions. The meeting was chaired by the vice president, executive chairman, the party committee secretary of Xiamen Tungsten Co., Ltd. Zhuang Zhigang.

China State Department counselor, president of the China Nonferrous Metals Industry Association and China Tungsten Industry Association, Chen Quan Xun attended the meeting and made a speech. He stressed that the members of the Bureau should play a leading role for stable tungsten market, they should enhance communication, unity, play attention to the interest of the whole, joint efforts to control market risks, resist the vicious competition, and maintain market running. He said that this year, the external environment for non-ferrous metal industry development is still very complicated, so we should correctly understand the current situation and grasp any chance for increasing scientific and technological innovation, promoting industrial upgrading. He asked CTIA (China Tungsten Industry Association) should strengthen self-discipline and in-depth research firmly the principal contradiction and hot issues of tungsten industry. Besides, they should operate innovation activities for government, industries and enterprises development. The first Secretary-General Liu Liangxian introduced the tungsten industry economic performance of this year and the china tungsten industry 13^th five years development plan (draft).

The meeting considered the resolution of council member adjustment. The meeting agreed Lianpingxian zhujiang kuangye co., Ltd. general manager Ma Songgui to succeed Zhang Zheng, Wendeng, Wendeng Zhengxing Tungsten Industry Co. chairman Gong Shaohua to succeed Liu Yuxin, and Ganzhou Gannan Tungsten Industry Co., Ltd. general manager Zhu Bo to succeed Qi Shen.

The meeting also considered the resolution of development members and the withdrawal the membership and agreed to develop Ganzhou Haichuang Tungsten Industry Co., Ltd., Comin Ganzhou Nonferrous Metal Materials Co., Ltd. as member of the CTIA, respectively anchored smelting branch. On the other hand, there are three companies want to withdraw the membership, including Zhuzhou Lizhou Cemented Carbide Co., Ltd., Changsha Huaxin alloy Electric Engineering Co., Ltd., Shanghai tool works Co., Ltd.. Further, the meeting also approved the China tungsten industry 13^th five years development plan.

The meeting discussed the tungsten industry current situation and exchanges the market information. The participants agreed that this year the tungsten concentrate production will significant decrease and the companies who produced tungsten finished products inventories remain at low level. Besides, the end demand overall is getting better. After the meeting, many tungsten companies agree to strengthen coordination and communication, to prevent and control common risk, and continue to take control of production, reducing production, reducing sales, increase business purchase and storage and other measures for tungsten market healthy and stable development.

During the meeting, Guangdong, Chaozhou, Secretary of municipal party committee Li Shuihua met with CTIA chairman Chen Quanxuan and other representatives participating in the conference. Li Shuihua introduced Chaozhou economic and social development situation, hoping China Nonferrous Metals Industry Association can play an important role for industry stable development, providing advanced resources and information and as a bridge for industry member to communication. In addition, in industrial level, technology introduction, marketing and other aspects it can give Chaozhou non-ferrous metals industry more help. Chen Quanxun said that in recent years Chaozhou has made great achievements in accelerating urban development, promoting industrial restructuring and upgrading and other fields. China non-ferrous metal industry should better learn from the advanced experience of the all around the country, focusing on strengthening concept innovation and technological innovation, promoting recycling of resources for industry development to break a new path. CTIA and non-ferrous Tungsten Industry Association will serve as a bridge to promote associations and related enterprises to strengthen the cooperation with the Chaozhou, to promote Chaozhou economic development.

Tungsten market: many manufactures of tungsten finished products willing to hold the price of tungsten finished products at the high level to make tungsten market health and stable development, but the price does not rise and the market doesn’t recovery; tungsten raw materials and tungsten finished products price continues to fall down slight and many buyer want to wait for market recover, so the transaction activity is low.

Rare Earth Market: in this week the rare earth market is running smoothly, many businesses continue to wait and there is not significant adjustment on rare earth price. Many manufacturers expected that the State Reserve Bureau plan will make the price go up, so they reluctant to sale the product at low price. Besides, the finished product manufacturers have low willing for stock up. The market is unstable, so many buyers can not make a decision for purchasing and still want to wait and see until the market is clear.

Compared with tungsten carbide material with common grains (micron scale), nano-crystalline tungsten carbide has remarkable improvements in density, hardness, fracture toughness and wear resistance, etc. This is due to the grain size reaches nano scale, the volume of the grain decreases, the specific surface area becomes larger, the arrangement of atoms on the interface relative out of order, it will immigrate easily under deformation external interference and the material shows excellent toughness and ductility. Especially in nano tungsten carbide cutting tools, nano-scale microstructure phase due to the size effect, the grain boundary area increases, anti-crack propagation resistance improved, which is beneficial for obtaining excellent mechanical properties and machinability.

However, since the difficulties in manufacturing process, higher cost and nano grains grow easily in the process of sintering, tungsten carbide less than 100nm can not reach the level of industrial production. So the researchers have found that add nano grains in tungsten carbide matrix with fine grains, it can effectively improve the hardness and toughness of the matrix materials. Now the enterprises use nano composite reinforced method to improve the properties of tungsten carbide material with fine grains. The principle of nano tungsten carbide composite strengthening mechanism is nano grain dispersed in the matrix has dispersed toughening effect. When added to a high elastic modulus of the matrix material in the second phase particles (nano particles), these particles in the matrix material by stretching action will prevent the transverse cross-section contraction, but to achieve the same substrate transverse shrinkage, the increase in the large longitudinal tensile stress, so that the material can consume more energy, toughening effect works. At the same time, high modulus particles crack can act as a "pinning" effect, so that the crack deflection, deviation, thereby dissipating power forward crack, so the toughening effect works. In addition, the dispersed nano grains in tungsten carbide matrix can inhibit the growth of carbide grains during the sintering process and greatly improve the mechanical properties of tungsten carbide materials.