What’s Your Flask IQ?
Flasks should be regularly inspected to ensure casting quality in horizontal green sand molding. See if you can answer these four critical flask questions.
JEFF EAGENS, EMPIRE SYSTEMS INC., AVON LAKE, OHIO, U.S.A., AMERICAN FOUNDRY SOCIETY GREEN SAND COMMITTEE, SCHAUMBURG, ILLINOIS, U.S.A. 你砂箱的智商如何？
在水平分型湿型砂铸造中，应经常检查砂箱以保证铸件质量。试试你是否可以回 答以下四个关于砂箱的关键问题。
Jeff eagens，来自美国俄亥俄州avon Lake的empire systems公司，是坐落在伊利诺斯州schaumburg的美国铸造 协会的湿型砂委员会委员。
M
any metalcasting facilities use a flask or flask set every day for five to 20 years. Since flasks come in constant contact with sand and metal, they can wear over time
and eventually affect mold quality. However, many metalcasting facilities don’t have a pro-
cedure for assessing their flask serviceability or dimensional integrity and only review them in extreme situations, such as damage from a run-out, molten metal penetration or flask wall erosion from rust. To address this concern, researchers have developed a
system to analyze, qualify and implement a cost effective, proactive method for flask preventative maintenance.
What Is a Flask? A flask is a frame for receiving and retaining molding
sand. It is mechanically connected to the pattern and used to hold molding sand during filling, ramming, squeezing, and impact or impulse. It must have sufficient structural integrity to maintain proper mold dimensions during these mold filling functions. Equally important, a flask is a carrier frame, provid- ing a secure fixture for the transportation and manipulation of its mold during pour- ing and solidification. As horizontal green sand tight flask molding lines have become more sophisti- cated, the dimensional and mechanical properties of the flasks also have become more critical.
很
多铸造厂中砂箱使用时间达5~20年。由于 砂箱始终与型砂和金属接触，随时间流
逝会发生磨损，这影响铸型质量。
但是，很多铸造厂并没有评估砂箱性能或者尺寸精度 的程序，仅仅在出现严重问题时才检查，比如跑火后发 生损坏、侵入了金属液或者砂箱壁锈蚀。 为了处理这个问题，研究者们提出了一个成本合理的 分析量化方法，可以为砂箱提供预防性维护。
砂箱是什么？
砂箱是一个框架，用于接收和保持型砂。它与模样采 用机械方式连接，用来在填砂、锤击、挤压、压实或冲 击的过程中容纳砂子。在造型过程中，它必须有足够的 结构完整性，以保持恰当的模样尺寸。同样重要的是， 砂箱是一个载体框架，它在浇注和凝固过程中起到用于 运输和操纵砂型时的安全夹具的作用。由于水平分型 造型生产线已变得很复 杂，砂箱的尺寸和力学 性能也变得更加重要。
Since a flask is in constant contact with sand and metal, it can wear out over time and needs to be frequently inspected.
砂箱始终与型砂和金属接 触，随时间流逝会磨损，需 要经常检查。
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FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION Spring 2012
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