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Table 1: Comparison of odor concentration (2007 vs. 2012)


表1:气味浓度的 对比(2007年与 2012年对比)


and in the cooling station (1 – 2 hours after casting). In 2007, an odor concentration of more than 2.8 OD/ m³ was measured in the wider area surrounding the foundry. Te odor concentration in the immediate vicinity of the foundry was significantly higher. After the conversion of the binder quality, the odor con-


centration was 2.5 OD/m³ in the immediate vicinity of the foundry and dropped proportionally to the distance from the foundry (odor source) (Fig. 3). At the end of 2012, the area hindered by the metalcasting


facility’s odor from the foundry shrank by more than 80 % as compared to 2007.—Antoni Gieniec, ASK Chemicals; Wim Senden, Componenta (Hoensbroek, Netherlands); Jos van Put- ten, ASK Chemicals GmbH (Waalwijk, Netherlands). 


的气味浓度超过了2.8 OD/m³。紧邻铸造厂范围内的 气味浓度更高。改变了粘结剂品质后,紧邻铸造厂范 围内的气味浓度降为2.5 OD/m³,而离铸造厂较远( 气味源)的气味浓度也有一定比例的下降(图3)。 2012年年底,受铸造厂气味影响的区域 面积比2007年缩减了超过80%。——An- toni Gieniec,ASK 化学公司;Wim Senden,Componenta公司(荷兰洪斯布洛克) ;Jos van Putten ,ASK 化学公司(荷兰瓦尔韦 克)。 


Reliable and Gentle Core Box Cleaning With Dry Ice 可靠且轻柔的芯盒干冰清理系统


MWS is an aluminum casting and CNC machining specialist that was created from a merger between well- established manufacturing companies. With six locations across Germany, Austria and Slovakia, MWS manufactures complex, precise, ready-to-install products in all standard aluminum alloys. MWS Friedrichshafen GmbH specializes in aluminum sand casting and is authorized and approved by almost all German car manufacturers as a supplier. One main concern of MWS Friedrichshafen is keeping their core boxes clean. It is crucial in keeping up both quality and integrity. “Te reliable removal of residues of the cold-box binder


from the core boxes for the quality of products is of funda- mental importance,” said Heiko Gläsle, Foundry Manager at MWS Friedrichshafen. “Terefore, we clean the boxes at regular intervals.” Cleaning core boxes is often done with dry ice due


to the complex geometries that require a precise and consistent clean. The company has used dry ice clean- ing technology for 12 years because of its many benefits, including that it is non-abrasive and provides no second- ary waste in the process, thus no disposal costs. When compared to manual cleaning methods, dry ice cleaning offers significant improvement in cleaning times (up to 60%) as well as reduction of damage to equipment and resulting scrap product. As dry ice blast cleaning allows a non-conductive, in-place method to clean parts, even


MWS公司是由多家完善的制造企业合并组建的公 司,是铝合金铸造和数控加工领域的专业公司。MWS 公司在德国、奥地利和斯洛伐克有6个工厂,生产复 杂的、精密且易于安装的所有标准铝合金产品。MWS Friedrichshafen公司专业从事铝合金砂型铸造,被几乎 所有的德国汽车制造商认定为供应商。该公司主要关注 的是保持芯盒清洁。关键是保证质量和一致性。 “为了保证产品质量,从芯盒中去除冷芯盒粘结剂 残留物是最重要的,”MWS Friedrichshafen公司的 铸造厂经理Heiko Gläsle说:“因此,我们会定期清 理芯盒。”


由于复杂的几何形状,精确和一致性的尺寸要求, 因此,通常使用干冰清理芯盒。由于它具有很多优点, 包括在使用中不需要磨料、不产生二次污染等,从而不 产生处理费,该公司采用干冰清理技术已有12年历史。 与手工清理方法相比,干冰清理技术的清理时间(降低 60%)明显改善,减少了设备的损坏和废品。干冰喷射 清理使用的是非传导的就地清理方法清理铸件,因此, 即使是局部的清理也是安全且容易的。


MWS公司对使用干冰是有信心的,但是,由于在喷 射器喷嘴和软管中结冰和堵塞,以及设备笨重等问题,


72 | FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION June 2015


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