If you still think that the free fish is just a place to sell old books, old clothes, and used items, then you are OUT. Because, now, the local tyrants are engaged in high-priced trading on the idle fish! On March 14, Wen Zuo running the boss Lin Zuomin auctioned the Tianyi Building in Xihu District of Hangzhou under the name of the fish, and finally a local tycoon 480 million The conditions won this building. But in the past day alone, two local tyrants spent 741 million to complete a transaction. Wu Changjiang, the founder of NVC Lighting, cut the two debts and cut the 130 million shares of Dehao Runda into two parts for judicial auction through the online platform. At 10:00 on March 16th, the trademark of Dehao Runda held by Wu Changjiang was successfully auctioned. The two bidders competed for the starting price of 412.20 million yuan and 329 million yuan respectively, and won the competition of 72,222,200 shares and 57,777,800 shares. The proceeds from the auction will also be used to pay Wu Changjiang’s personal arrears. However, it is surprising that the two bidders were the creditors of Wu Changjiang’s huge arrears: Tibet Linzhi Huifu Investment Co., Ltd. (hereinafter referred to as Linzhi Huifu) and New World Strategy (Beijing) Investment Consulting Co., Ltd. (hereinafter referred to as New World Strategy). After the completion of the completion of this equity, the pattern of the top ten shareholders of Dehao Runda will change. There are indications that Linzhi Huifu, who will be the second largest shareholder of Dehao Runda, and the New World strategy to be the fourth largest shareholder, are all related to the family of Cheng Yuxi (who died in 2016). Successful bidding by two creditors From 10:00 on March 15 to 10:00 on March 16th, the Zhuhai Intermediate People's Court of Guangdong Province auctioned the shares of Dehao Runda held by Wu Changjiang through the online platform for free fish. The auction success confirmation book for the idle fish auction showed that Tibet Linzhi won the highest price of 412 million yuan and successfully won 72.222 million shares of Dehao Runda. The New World strategy won the highest price of 329 million yuan. Successfully won 5,777,800 shares of Dehao Runda restricted shares. The proceeds from this judicial auction are precisely to pay Wu Changjiang’s arrears to the two companies.
Diffusion welding of copper to aluminum has been carried out in vacuum. The microstructure of the bonding zone was examined in detail with several metallographic methods to make clear the important factors which affect the mechanical properties of the joint. Results obtained are summarized as follows: 1) An intermetallic compound layer was observed which could be devided into characteristic region I, II, and III. The intermetallic compounds of θ and γ2 formed in I and III region, respectively. The hardness of II region is the highest of the regions. 2) The growth of the intermetallic compound layer is considered to be controlled by the atomic diffusion and the increase in the intimate contact area between the faying surfaces. The diffusion process became more important with the increase in welding temperature and time. 3) At shorter welding time, the tensile strength of joints increased with the rise of welding temperature, time, and pressure. This stage is considered to be a process where the intimate contact between the faying surfaces was developed. 4) At longer welding time, the tensile strength of joints approached to a saturated value (2.3 kg/mm2) much lower than that of aluminum base metal. This tendency was observed for the thickness of the intermetallic compound layer greater than 15~20 μm. In this case, fracture was developed in the intermetallic compound layer, but not at the welding interface. The strength of these joints is considered to be controlled by the intermetallic compound layer. 5) Oxide film of aluminum delayed the real metallic contact between the faying surfaces at shorter welding time.
Copper Aluminum Diffusion Welding
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