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China Foundry Parts Exhibition and the 8th China International Nonferrous and Special Casting Exhibition
Release time:
2018-08-20
At the beginning of the "Twelfth Five-Year Plan", the "China Foundry Parts Exhibition and the 8th China International Nonferrous Special Exhibition" organized by the China Foundry Association is very timely, which is also the implementation of the "Twelfth Five-Year Plan for China's Foundry Industry" One of the important measures of "Planning. Looking at this exhibition, although it is less than a year from the "China International Expo" held in Beijing in May 2010, its exhibition scale is only 1/5, but this exhibition has the characteristics of small and sophisticated. The quality, variety and technical content of the products on display have been improved to a certain extent to the new level; the number of enterprises participating in the exhibition in the central and western regions has greatly increased, and the level of exhibits has also
At the beginning of the "Twelfth Five-Year Plan", the "China Foundry Parts Exhibition and the 8th China International Nonferrous Special Exhibition" organized by the China Foundry Association is very timely, which is also the implementation of the "Twelfth Five-Year Plan for China's Foundry Industry" One of the important measures of "Planning. Looking at this exhibition, although it is less than a year from the "China International Expo" held in Beijing in May 2010, its exhibition scale is only 1/5, but this exhibition has the characteristics of small and sophisticated. The quality, variety and technical content of the products on display have been improved to a certain extent; the number of enterprises participating in the exhibition in the central and western regions has greatly increased, and the level of exhibits has also been greatly improved; the number and scale of participation in the casting industry cluster are also increasing, which fully demonstrates the rapid development of China's casting industry with each passing day, the exhibition audience is very enthusiastic, and the exhibitors are high. This also proves that it is necessary to hold a small exhibition between the two-year exhibition; it is also correct to choose Nanjing in the economically developed Jiangsu and Zhejiang regions of my country.
Most of the exhibitors this year are previous exhibitors, old friends, and new companies and new friends who have participated in many exhibitions. Among them, there are many well-known domestic enterprises, they all have new friends to develop and demand new exhibits and new technologies.
After two days of visit, the author felt the following points more prominent:
Over the past year, many enterprises have developed new products, focusing on technological innovation, the situation is very commendable. For example: ① the 5mw wind power wheel casting (FN-GJS-400-18V-lt) produced by jixin wind energy technology co., ltd. weighs 38t (3wm wind power wheel on display in 2010). The exquisite appearance has aroused great interest and attention from domestic and foreign visitors (many domestic and foreign visitors take photos in the inner cavity of the casting, which shows the strong interest). ② New non-ferrous alloy casting materials have been added to the exhibits of Shengquan Group, including melting materials (dedusting agent, slag remover, furnace cleaning agent, refining agent), compression melting agent, gravity casting material removal and the introduction of thermo/an cast iron quality intelligent control system. The system achieves online intelligence, predictable, and minimizes the effectiveness of the spheroidizing agent. ③ The old sand boat on display in Xinan casting machine is full of vitality, and the regeneration technology has been improved, from the original two-axis to three-axis, rubbing and falling twice, and changing to the gap type on the basis of the original continuous type, which not only improves the production efficiency but also increases the yield of regenerated sand. ④ The new products exhibited by Kaihui Li Company include: silicon-based thermal repair materials, new materials for zirconium sand and quartz sand high gold-bearing cast iron furnace, special castable for covering spheroidizing color, long-furnace cupola casting and cast iron outlet of holding furnace. ⑤ The new products developed by Zibo Daya Metal Technology Co., Ltd. are: low barium mixed abrasive, which is the only manufacturer in China (C content is 0.08~0.20), can be used in the available shot blasting and frosting, and can save more than 50% of the shot blasting cost compared with the use of high-sprayed steel shot. ⑥ HAP automatic pouring machine imported and developed by Zhiheng Hunter has the same function as Japan's PCF high-speed automatic pouring machine, but its price is only about 1/2 of that of PCF machine. ⑦ Zhengzhou Zhongxing has introduced a new generation of thermoplastic furan resin, which is used in steel casting factories to prevent thermal cracking and cracking. The developed second generation of environmentally friendly cold core box resin is used in automobile casting production with a market coverage rate of 75%. The developed functional material removal (shielding coating) is suitable for the production of wind power castings as a sulfur-permeable coating. ⑧ The man-made synthetic mullite coating developed by Zhengzhou Xiangyu Group has a strong wind resistance of 1800 ℃ and is suitable for the production of wind power castings.
The casting parts exhibited in this exhibition have generally improved their quality and are narrowing the gap between industrialized countries. In addition, with the extension of the industrial chain, some rough castings have been processed into parts. For example: ① The FB320-2000 ram (made of QT600-3) exhibited by Wuhan Wuzhong Casting and Forging Company, weighing 6.5t, requires all the processing surfaces of the Second Factory to be finished, and no iron berth is allowed. Its uniformity of change is less than HB10, and its products fill the domestic gap. The ductile iron high-speed train traction seat exhibited by Laizhou Xinzhongyue Machinery Co., Ltd. has an impact resistance of more than 13T under -50 ℃ working conditions, which has now replaced the import. ③ The cantilever of the luxury bus ship bridge exhibited by Henan Odiai Casting Co., Ltd. is made of ADI and has a mechanical performance of 960-12.5. It has been exported to Italy in batches. Wuhan Zhike Wear-resistant Material New Technology Co. The service life of the modified parts is more than three times higher than that of the traditional wear-resistant lining plate. ⑤ Wuhu Yongda Technology Co., Ltd. mass produces Chery sedan (1.6L) engine block, its material is stable, exquisite appearance, internal and external scrap rate of less than 2.5. ⑥ Cummins 3078024 marine exhaust pipe (made of QT450-10 kg) produced by Xixia internal combustion engine near exhaust co., ltd. weighs 45kg and is equipped with double-layer channels. the process is complicated, the internal quality of the cast body is good, and the appearance is exquisite. All landowners Shanxi jiaocheng county zhengrong machinery co., ltd. exhibited the high-speed railway motor block (cold-blasted ductile iron at -50 ℃), with low casting quality. The diesel engine body (made of QT500-7) exhibited by Shaanxi Diesel Engine Co., Ltd. Weight 4.8t, size 3650 × 1520 × 1130mm,4800 resistance. The appearance quality of the casting is exquisite. ⑨ Zhejiang Changxing Forward Machinery Casting Co., Ltd. produces high-power marine gearboxes, engineering machinery and heavy machinery gearbox castings, the products are very exquisite. When watching the scene, a visitor visited the casting three times (the material is HT250, weighing 8.300kg). He said with emotion: "I have seen this casting several times is a kind of enjoyment".
Three. The exhibition of non-ferrous and special casting products fully demonstrates the obvious progress in the production of non-ferrous metal castings in China in recent years, especially the rapid development of die-casting products and considerable strength. For example: 1. Pressure casting: ① The SHCM15 type assembly bracket type high-performance aluminum alloy die castings exhibited by Guangdong Mingte Precision Technology Co., Ltd. are used to replace cast iron parts to adapt to the development direction of automobile sales. The Cummins heavy horsepower engine gear room, which is produced by Guangdong Hongtu Technology Co., Ltd., weighs 19.8kg, has complex casting and uses "live fast" molding technology. ③ The material produced by Jiarui Group is magnesium alloy computer notebook shell added with rare earth elements, with an average wall thickness of only 0.8mm and a weight of 150g. The casting is a typical representative of floating wall complex parts.
2. Low-pressure casting: ① The ultra-long black-pressure switch arc tank aluminum alloy shell produced by South Elsg Alloy Precision Forming Co., Ltd. is cast with resin sand low-pressure, double-row liquid pipe casting production process, and 550kv steel breaker shell produced by castings are exported to ABB, Siemens and Philips, with an export volume of 55%. ② The die-casting aluminum alloy automobile castings exhibited by FAW Casting Co., Ltd. are generally at the leading level at home and abroad. The domestic high-grade HQ3 Hongqi casting aluminum alloy sand mold low-pressure casting v6 cylinder body developed by it has laid a solid casting technology foundation for the research and development of domestic high-end independent brand cars. ③ Guangdong Zhaoqing Power Technology Co., Ltd. exhibited a large and complex low-pressure casting cylinder head developed with the independent brand of Guangzhou Automobile Group Passenger Vehicle Co., Ltd. 4 Jiangsu Huajiang Technology Co., Ltd. adopts low-pressure casting process to produce high-voltage electrical shell, the maximum weight of 800kg. Now exported to France Alz. ⑤ Fuxin Wanda Casting Industry (Group) Co., Ltd. produces ultra-high voltage and large-scale casting aluminum shell castings, the enterprise's products are the main suppliers of domestic Pinggao Electric, Xikai shares and other high-voltage switch enterprises, and exported to ABB, Mitsubishi Group.
3. Gravity casting: ① Chongqing Jieli Wheel Hub Manufacturing Co., Ltd. has manufactured hollow high-end performance aluminum wheel hub with metal gravity casting and complex sand mold race for Honda Company. Its appearance is very exquisite. Fuxin Wanda Casting Industry (Group) Co., Ltd. adopts resin sand gravity casting, metal gravity casting production of 800000-volt, 1 million-volt series of supporting aluminum alloy castings, its quality has reached the domestic advanced level.
4. Precision casting: ① The nozzle ring precision casting products exported by Yingpu (China) Co., Ltd. for turbocharger systems have complex shapes, large wall thickness differences, high dimensional accuracy of variable cross-section blades, and beautiful appearance. ② Shandong Yonghe Precision Metal Co., Ltd. exports to South Korea high complex, strict tolerance requirements of stainless steel precision castings, reached a very high level.
5. Art Casting: ① Hebei Fahrenheit Casting Co., Ltd. adopts multiple composite processes such as core modeling, lost foam, lost wax and so on to produce Cangzhou Iron Lion Art Castings with exquisite appearance, which can be called a unique one. The bronze statue of Guanyin customized for Dunhuang Mogao Grottoes exhibited by Jiangxi Tongqing Metal Crafts Co., Ltd. is made of tin bronze and adopts thermal coloring process. Its color is durable and bright. The product shows the charm of artistic bronze statue.
Four. For the development of green casting, the development of resources can be recycled industry, showing a good momentum of development. The exhibition of several old sand recycling devices (systems) has aroused the interest of many enterprises, and the visitors are very active, which shows that the foundry enterprises pay attention to this work. For example: ① The wet sand recycling system developed by Changjiang Molding Materials (Group) Co., Ltd. can recycle the old sand of clay sand and resin sand (including coated sand and cold core box). Equipment processing capacity: 12t/n for single machine and 24t/n for parallel machine. The characteristics of the system are: the whole system is subject to on-line control and control (due to the composition of used sand in each enterprise, the water level fluctuation is different), which can be monitored through on-line control and process adjustment to monitor images and data; The quality of recycled sand can reach or exceed the standard of original sand; The "polycrystalline sand" developed by this enterprise is mined in layers, with sio2> 97% and refractoriness> 1790 ℃, burning reduction ≤ 0.12, acid consumption ≤ 38mt/g peppercorn 15 "; The dust recovery rate of" CT4P "sand developed by the enterprise on the basis of" polycrystalline sand "can reach 99.97, and the recovered dust is reused (part of dust + iron powder and slag are used to produce construction cement; Part of it can be used as raw materials for fertilizer in the construction industry) to truly achieve harmless treatment; the company starts from the design of the enterprise recycling plant to the final production, and implements the whole process service, which fully embodies the system engineering method. Today, the regeneration system has sold more than a dozen regeneration systems, mainly large and medium-sized enterprises, welcomed by enterprises. If the foundry enterprise service in our country, it can reduce the economic burden of small enterprises, and can reduce the area of equipment, which is conducive to promotion. This is a wide range of China's clay sand, resin sand enterprises energy saving can be arranged. It is of great significance to split and utilize resources again. The wet sand recycling equipment of Renchuang Jufeng Machinery Co., Ltd. also has a basic road. The equipment control is completely intelligent and requires only one person to operate; the built-in countercurrent heat exchanger can efficiently recover heat. And with the use of wet sand in the residual pulverized coal re-combustion to generate heat, energy-saving effect is significant; the use of secondary combustion method, so that the quality of sand regeneration stability. The equipment is suitable for clay sand, resin sand (including coated sand, cold core box), equipment processing capacity of 0.3t/n25t/n, convenient for all kinds of small and medium-sized casting enterprises to choose.
Five. The casting industry cluster and the casting enterprise cluster area were all unveiled at this exhibition, and they have begun to take shape and have great vitality. For example: ① Chongqing Die Casting Industry Agglomeration Area; ② Ninghai --- China Die Casting Base; ③ Botou Foundry Industry Cluster; ④ Fuxin Foundry Industry Cluster; ⑤ Gaoyou Foundry Parts Industry Cluster; ⑥ Shanxi Jiaocheng China Foundry Industry Cluster; ⑦ Xiangfen China Foundry Industry Cluster Pilot, etc., its industrial clusters can reflect its own characteristics. This will explain the strong promotion of the foundry industry structure adjustment and product structure adjustment, in order to speed up the pace of economic development mode construction.
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