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On September 16, 2009, under the extensive expectation of the industry, 09 China International Hardware Exhibition (Cologne International Hardware Exhibition) was grandly opened at Shanghai New International Expo Center. The exhibition lasted for 3 days from September 16th to 18th, and the exhibition area reached 100,000 square meters. In the context of the current international economic crisis gradually impacting the real economy, 09 Cologne International Hardware Fair is still favored by many domestic and foreign companies. According to statistics, more than 1,000 manufacturers from 32 countries and regions participated in the exhibition, including more than 350 overseas manufacturers and more than 650 domestic manufacturers. The exhibits ranged from tool hardware, construction hardware, and DIY home decoration, abrasives and abrasives. Hard materials, coated abrasives, locks and security products, gardening and outdoor products, as well as kitchens, bathroom products and other fields. Among them, more than 40 companies participated in the abrasives industry. .jpg)
Wang Mingyuan, Secretary General of the Coated Abrasives Branch of China Machine Tool Industry Association, Li Yuxian, Senior Consultant, and Ding Dejun, Chairman of the Board of Directors of Great Wall Abrasives, attended the exhibition. In-depth visits to industry companies that have come to participate in the exhibition, listening to corporate demands and understanding market trends. And by the opportunity of the exhibition, organize corporate representatives, experts and scholars to hold a special forum to help companies analyze the situation and grasp the direction.
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Shi Chao, Director of the Marketing Department of China Abrasives Industry Association (China Superhard Materials Network, China Abrasives Network, China Coated Abrasives Network), distributes Diamond and Abrasives Engineering to the Abrasives in the exhibition area for free. Propaganda magazines such as Abrasives and Abrasives, China Abrasives, and China's Coated Abrasives showcase new products and introduce new technologies through networks and magazines to help companies create value and promote technological advancement in the industry. During the visit, visitors to the exhibition area will learn about the application fields of abrasives and abrasives, introduce the abrasives and products to downstream enterprises, and expand the information platform of abrasives and abrasives.
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CIHS2009 has become one of the most important hardware events in the world, and the exhibition is still hot. Throughout the exhibition, the situation of “three highs†was presented, the level of exhibits was high, the quality of exhibitors was high, and the audience was highly concerned. Most exhibitors said that although the financial crisis has had a certain impact on enterprises, they are full of confidence in the future development. CIHS2009 has built a good platform for mutual learning and learning for domestic and foreign enterprises. .jpg)
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The world's processing centers are moving to China, and abrasives as a tool industry have also ushered in unprecedented opportunities and challenges. After knowing the difficulties and then strong, abrasives and abrasives enterprises should also redouble their efforts to develop more and have the world (Editor: Shi Chao)
Although there are many types of tapping screws, they all have the following similarities:
(1) are generally made of carbonized carbon steel (accounting for 99% of total production). It can also be made of stainless steel or non-ferrous metals.
(2) The product must be heat treated. Carbon steel tapping screws must be carbonized and stainless steel tapping screws must be solution hardened. In order to make tapping screws to meet the requirements of the standard of mechanical properties and performance.
(3) The product surface hardness is high, the core toughness is good. That is, "soft inside strong outside". This is a major feature of tapping Screw performance requirements. If the surface hardness is low, it can not be screwed into the matrix; If the core toughness is poor, a twist will break, can not be used. So "inside soft outside steel" is self-tapping screw to meet the use of performance, very important requirements.
(4) The surface of the product needs surface protection treatment, generally electroplating treatment. Some product surface must be treated by phosphate (photostatting), such as wall panel self - tapping screws for photostatting.
(5) Production by cold heading process. It is recommended to use high-speed cold heading machine and high-speed wire rolling machine or high-speed planetary wire rolling machine. High speed is emphasized here to ensure product quality. Only the head of tapping screw produced by high-speed machine is well formed and the thread quality is high.
Round head Tapping screw,hex tapping screw,flat head tapping screw,pan head tapping screw,truss head tapping screw
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