product news/產品新聞
istries in the world and can tailor an alloy to your specific needs. Tese, under the trade names Lamet, Remag and Elmag nodu- larizers and in combination with Topseed cover alloy, provide optimum alloy usage at a low cost.
Visit
www.elkem.com for more information.
的公司，可以根据特殊需求生产合金。这些以 Lamet，Remag和Elmag为商品名的球化剂配合Tops- eed覆盖剂，可以优化合金使用并降低成本。
更多信息请访问
www.elkem.com。
Accurately Detect Iron Stream Temperatures 准确的检测铁液温度
Constant temperature measurements of molten metal
jets become more important with the progressive auto- mation of casting machines. Due to the varying emissivity of melting, reliable
measurement results are difficult to achieve. DIAS Infrared, Dresden, Germany, has developed
a non-contact iron stream temperature measurement system. AS steel, iron and nonferrous casting facilities increas-
ingly automate, a reliable monitoring of the casting pro- cess is needed to produce uniformly high quality parts. Because melting temperatures normally go up to 1,500C, only a non-contact measuring method is qualified for reliable monitoring and low maintenance. Industry infrared measurement systems have been enforced here. Melt emissivity changes dramatically due to material variations, different operating parameters of the furnace, environmental variables or different high air inclusions in the melt. Thermographic standard systems measure relatively
inaccurately, leading to fluctuating casting quality. DIAS Infrared GmbH developed a reliable digital pyrometer system designed to meet the pouring stream. The system consists of a digital ratio pyrometer Pyrospot DSRF 44N with a special lens to record temperatures up to 1,800C, a choice of 2 to 22-m long fiber optic cable, an evalua- tion unit with temperature display and software. The pyrometer measures the temperature of the pour-
ing stream from 3 to 5 m away with an optical head. To keep the lens of the optical head continuously clean, it can be mounted with air purge units and sight tubes in different lengths. The optical head and the light guide can be used without cooling in ambient temperatures up to 250C, and with the integrated laser sighting, the pyrometer can be aligned to the pouring stream. In the evaluation, a four-digit, 135 x 38-mm LED
display is integrated to the measured temperature. In addition to an isolated RS-485 output, the unit is equipped with an ethernet port, which allows system configuration and remote maintenance. The software automatically detects the beginning and end of each molding process and allows the adjustment of a number of parameters. Each alloy has a relevant average tem- perature output that signals occurring variations, such as those often found at the gate.
Visit
www.dias-infrared.com for more information. 62 |
FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION May 2013
随着铸造机械的自动化的不断进步，对熔融金属液持 续不断的测温变得更加重要。
由于熔融金属液不同的发射率，可靠的测量结果难以 实现。德国德累斯顿DIAS Infrared公司已经研制出 非接触式铁液温度测量系统。
随着越来越多的钢，铁和有色金属铸造厂的自动 化，生产高品质及一致性零件的铸造过程需要可靠的 监测。由于熔融金属液温度通常会达到1500℃，只有 非接触式测量方法才符合可靠的监测和低成本维护的 条件。工业红外测量系统已经得到了实施。由于材料 的多样性，炉子不同的操作参数，环境的多样性，或 者金属液中混入大量的空气，会引起金属液发射率的 急剧变化。
热成像标准系统测量的相对不精确，会导致铸件质 量不稳定。DIAS Infrared公司专为浇注金属液开发了 一款可靠的数字测温系统。该系统由一款数字化高温 计PYROSPOT DSRF44N与一种特殊的镜头组成，记 录温度最高可达到1800℃，可以选择2至22米长的光 纤电缆，配有温度显示装置及计算的软件。 高温计距离浇注液3至5米的距离用光学镜头测量温 度。为了保持光学镜头的清洁，它可以和空气净化装 置安装在一起，或者安装在不同长度的观察管中。光 学镜头和光导纤维可以在环境温度高达250℃的情况 下，不需冷却继续工作，并通过集成激光瞄准，对准 浇注液。
测得的温度经过计算，以四位数显示在135×38毫 米的LED显示屏上。本机配备一个以太网端口，配有 独立的RS-485输出，它允许系统配置和远程维护。系 统软件将自动检测每个模块过程的开始和结束，并允 许高温计调整参数。每种合金都有相关的平均温度的 输出信号显示正在发生的变化，正如经常在门口发现 的测温装置一样。
更多信息访问
www.dias-infrared.com。
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