product news/產品新聞
Hunter’s new flask-filling device uses an array of nozzle assemblies to direct a metal caster’s sand mixture into flasks with better compactibility.
亨特的新造型设备能够用一排 喷嘴组件直接将型砂射入砂 箱，使其有更好的紧实度。
testing, directs a metalcaster’s sand mixture through an array of nozzle assemblies with a blast of air. Te nozzles are built into a manifold and mounted directly above mold sections. According to Hunter, the filling
action results in greater uniformity of mold density and wall hardness, without sacrificing the accessibil- ity and flexibility of a gravity-fill machine. Perpendicular filling avoids the shadow effect caused by side blow filling. Te JetSlinger, invented by Hunter President Bill Hunter, was developed to compensate for mold quality limitations caused by sand flowability and pattern configuration during the high pressure squeeze cycle. During operation, the sand mixture is loaded into the hopper and the hopper gates open. Rotating blades aerate the mixture, which is delivered into the Venturi manifold. Under pressure, the mixture is slung through 20 nozzles into the mold flask, which fills with pre-compaction around the pattern plate. Hunter expects the JetSlinger to be available for the first time
ing XL machines can be retrofitted with the device, as well. Visit
www.hunterauto.com for more information.
as an option on the Hunter XL2024 automated matchplate mold- ing machine in late 2012, with other XL models to follow. Exist-
件。这排喷嘴装入一个歧管 并直接安装在造型室上方。 根据亨特设计,充填作用 使砂型密度和硬度更均匀,同 时又不损失重力充型的可达 性和灵活性。垂直填充避免 了侧吹填充形成的盲区。亨 特总裁比尔•亨特研发喷气
射砂技术用来补偿在高压力挤压循环时，型砂流动性 和型板结构造成的模型质量缺陷。
在操作期间，型砂装入储料器随后料斗门开启。通 过旋转叶片使充满气的型砂传送到文丘里歧管。在压 力下，型砂通过20个喷嘴射入砂箱，充型伴随在模板 上预压。
亨特预计喷气射砂作为亨特XL2024自动造型机一 个选项，可于2012年底第一次亮相，其他XL机型将
跟进。现有的XL机器可进行改造。 更多信息访问
www.hunterauto.com
Increasing the Competitiveness of High Precision Castings 提升中国铸造业高精度铸件的竞争力
Recently in the market of automobile, rail transit, aerospace and other important industries, casting precision requirements have been enhanced by leaps and bounds. In the Chinese foundry industry, competitiveness has been affected by the low quality of castings, high investment/low yield, high energy consumption and high emissions. With the rapid development of the metalcasting industry in China, molding lines and tech- nology have changed rapidly. Tis paper introduces precision
近年来汽车、轨道交通、航空航天等重要行业对铸 件的精度要求不断提高，但是中国铸造业中低品质的铸 件，高投资低收益、高能耗高排放的生产，环境保护方 面的薄弱等诸多问题，影响了中国铸造业在世界上的竞 争力。随着中国铸造工业的高速发展，各种铸造造型线 技术日新月异，本文介绍了新型的冷芯盒工艺精密砂型
Shown is a paint and dry table for the molds.
- 涂料及表干系统(根据需要选择) February 2013
FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION | 71
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