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新疆八一钢厂DC电弧炉新的控制系统 周远航1,魏利平2,王领莹3,周璜4 (1.冶金自动化研究设计院;2.北京科技大学信息工程学院,;3.新疆八一钢厂;4.烟台大学) 摘要:介绍新疆八一钢厂70 t直流电弧炉的新的控制系统.该系统既控制电弧电压和电流,又控制PCC点的无功功率,因而明显地降低了电压的闪变和系统的谐波含量,提高了功率因数,取得了非常满意的效果. 关键词:直流电弧炉; 无功功率控制; 续流和移相控制; [全文内容正在添加中] ......
DC-Ⅰ型电脑皮带秤的研制与应用何本宜湖南有色金属研究所摘 要:本文介绍了DC-Ⅰ型电脑皮带秤的结构,工作原理,技术参数和现实应用的效果.关键词:......
Effect of Ablation Casting on Microstructure and Casting Properties of A356 Aluminium Casting AlloyV. Bohlooli1,M. Shabani Mahalli1,S. M. A. Boutorabi21. Casting Research Center, School of Metallurgy... University of Science and Technology (IUST)摘 要:Recently the Ablation Casting Technology was invented as a new casting process to improve foundry products......
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PREPARATION OF THE OPEN PORE ALUMINUM FOAMS USINGINVESTMENT CASTING PROCESS F.Wang1,L.C.Wang1 (1.Taiyuan Heavy Machinery Institute, Taiyuan 030024, China) Abstract:This paper briefly presents characteristics, application and development of the metal-lic foams. Sound specimen has been achieved with preparing foam aluminum by usinginvestment casting process. The preparation of plaster......
alloy.Key words:semi-continuous casting method; microstructure; mechanical properties; fine grain strengthening......
properties of soft-contact electromagnetic DC casting 7050 high-strength alloy ingot GUO Shi-jie1, XUE Guan-xia1, LIU Jin-yan1, MA Ke1, WANG Jia-chun1, LI Ting-ju2, CAO Zhi-qiang2 (1.Suzhou... by applying the soft-contact electromagnetic field. In the demicontinuous (DC) casting, the segregation rates of alloying elements Zn, Mg and Cu are 6.62%, 9.54% and 7.92%, respectively. After applying......
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DC ARC发射光谱法测定纯金中18个杂质元素 陈洪泽1 (1.国内贸易部物资再生利用研究所,江苏,徐州,221006) 摘要:用DC ARC发射光谱法研究了纯金中杂质元素的定量分析方法,配制了一套适合贸易,科研,生产的光谱标样.本方法可以一次定量测定纯金中18个杂质元素,还进行了检出限和测量不确定度实验,结果表明方法的检出限较低,不确定度低,各杂质元素的相对标准偏差一般<10%,检测方法具有准确度高,检测速度快,效率高的特点. 关键词:分析化学; DCARC; 发射光谱; 纯金; 检测; 杂质元素; [全文内容正在添加中] ......