This ADI ring gear pinion measures 760 × 400 mm and weights 710 kg with a maximum wall thickness of 140 mm.


图4 齿圈相配的小齿轮 Φ760×400mm， 重710kg，最大壁厚140mm。


ing weight and saving cost.


ADI Heat Treating Zhejiang Jiashan Sanyong


Electrical Furnace Industry Co. Ltd. built a controlled atmosphere seal box special furnace production line in January 2006. Suzhou ADI imported a controlled atmosphere multipurpose furnace production line from AFC-Holcroft, Michigan, USA, and debugged it in the first half of 2007 after instal- lation. Since then, professional heat treatment centers have been appearing in China. Suzhou ADI has played an important role in the development of ADI products in China by actively helping Chinese companies in ADI production development and testing. Hebei Qianxi Aodiai Mechanical Casting bought


two controlled atmosphere seal box furnace austemper- ing production lines, made by AFC, from Shanghai Powermax Furnace Co. Ltd. in 2007, and the production lines were put into operation in June 2010 to establish an austempering heat treatment center in North China. Believing wide ADI applications will arise in China, Aipu Co. installed two production lines in August 2011 at its new branch Jilin Aipu Co., Changchun, China, to serve an austempering center in the northeastern region of the country. One hearth at Jilin Aipu is about 2 × 2 × 1.5 m and can heat treat 4.5 tons of castings at a time. Nanjing Guangying Furnace Co. Ltd., Jiangsu, China,


has installed continuous austempering production lines for components used in railway applications. Hubei Mechanical and Electrical Research and Design Institute recently improved its design of austempering equipment with an intelligent mechanical arm to ensure process execution. Hankou Furnace Co. Ltd., Wuhan, China, has been developing and manufacturing austempering heat treatment furnaces for many years and can offer austem- pering furnaces in a range of sizes (hearth sizes from 600 × 500 × 800 mm to 2,000 × 1,200 × 1,200 mm), as well as chain-belt continuous austempering furnaces. In 2005, the first professional ADI factory in China, Henan ADI Foundry Co. Ltd. was established. After several years of development, it now can manufacture large quantities of components like heavy truck chassis, air picks, and coal mining and engineering machinery. In 2007, its ADI production volume was 2,700 tons. By 2010, it reached 4,500 tons. The company expects to pro- duce 7,000 to 8,000 tons in 2012.


ADI Crankshaft and Gear Market


In recent years, turbocharging technology has been applied to gasoline engines. FAW Foundry has started


工作取得不小进展，如东风 汽车有限公司在5吨高机动性 越野车试制中，采用ADI替 代传统的铸钢件，并结合球 铁优良的铸造性能和力学性 能优化结构设计，在CAE模 拟分析的指导下，对零件关 键受力部位减重后仍比减重


前有所增强的条件下，尽量减薄、减重，使14件零件采 用ADI后，总重量由630.62kg减为380.66kg，减轻了 249.96kg，减重率达39.6%，并在后续改进中进一步增 加ADI件数量，使整车ADI件重量达到了550.4 kg；又 如一汽技术中心积极开展ADI在重型、矿用车底盘零件 研发工作，前轴、转向节、后桥、轮毂等都在试验，如 何利用ADI优异的力学性能改进设计，减薄、减轻零件 重量，降低成本是他们的主要目的。这也是欧洲ADI发


展的主要方向之一。


专业化热处理中心和ADI专业生产厂的建立初见 成效


自浙江嘉善三永电炉工业有限公司生产的可控气氛密 封箱式专用炉，2006年1月初建成并调试成功和从美国 AFC引进的可控气氛密封箱式多用炉生产线安装在苏州 艾普零件制造有限公司〔A.P.（苏州）〕并于2007年上 半年调试成功后，我国开始有了专业化热处理中心。几 年来，A.P公司积极配合我国企业ADI产品开发、试验 工作，发挥巨大作用，促进了我国ADI的发展。 河北迁西奥帝爱机械铸造有限公司也于2007年从上海 宝华威热处理设备有限公司购买了2条美国AFC生产的可 控气氛密封箱式多用炉等温淬火生产线，并于2010年6 月投入生产，目的是在北方建立一个等温淬火热处理中 心。看好我国ADI应用前景，艾普公司还在长春建立吉 林艾普公司，安装了两条生产线，其中一条炉膛尺寸为 2000×2000×1500mm，可以一次处理4.5吨铸件，已于 2011年8月投产，成为东北地区等温热处理中心。 南京光英炉业有限公司也为有关工厂生产了铁路 用ADI零件等温淬火连续生产线，湖北省机电研究设 计院也对原采用的等温淬火装置进行了改进并采用智 能机械手以保证工艺的准确执行等工作。汉口电炉有 限责任公司多年来积极从事等温淬火热处理炉的开发 和生产工作，除提供各种规格的等淬炉（炉膛尺寸从 600×500×800到2000×1200×1200mm）外，还生产 网带连续式等温淬火炉。


2005年，我国出现了首家ADI专业生产厂——河南 欧迪艾铸造有限公司，经过几年发展，已能批量生产重 型汽车、大巴等底盘零件及风镐、煤机、工程机械等 较重要零件。2007年共生产ADI零件约2700吨，2010


34 | FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION Spring 2012


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