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1.
《中国钼业》2005,29(3):5-5
用于核燃料包复层的有优良的耐腐蚀性的含铌锆合金。包括如下重量组成:铌0.8%~1.2%、选自铁,钼,铜,和锰的一种或多种元素,含量各是0.1%~0.3%;或铌1.3%~1.8%、锡0.2%~0.5%、一种选自铁,钼,铜,锰的元素,为0.1%~0.3%;或铌1.3%~1.8%、锡0.2%~0.5%、铁0.1%~0.3%、一种选自铬,钼,铜和锰的元素,为0.1%~0.3%;或铌0.3%~1.2%、锡0.4%~1.2%、铁0.1%~0.5%、一种选自钼,铜和锰的元素,为0.1%~0.3%;其余成分为氧600~1400mg/kg;硅80~120mg/kg和其余量的锆。  相似文献   

2.
这是一项由日本三菱铝业公司研究发明的专利技术,该铝合金管系以铝为基的带材卷制而成。这种铝合金的成分为,%:Mn0.5~1.5,Si0.3~1.3,0.1<C≥0.01,Zr0.05~0.25,Cr0.05~0.25,Ti0.1~0.25和Mg0.05~0.2。铝管的内表面涂覆有一层厚0.005~0.05mm.的AI—Zn合金(含Zn0.3%~2%)或AI—Sn合金(含Sn0.05%~0.2%)。卷制好的铝合金毛管在AI—St合金钎焊液中钎焊,钎焊时控制好钎焊温度。这种铝合金管的耐腐蚀性极佳。热交换器用高强度铝合金管…  相似文献   

3.
以CaO-Al2O3-MgO-BaO为基本渣系用正交设计试验方法得出研制的含CaO(40~50)%,Al2O3(25~35)%,MgO(10~15)%的LF精炼用预熔渣具有1280℃的较低熔点,脱硫效果好。经150t电弧炉150炉统计数据表明,在精炼前钢中硫含量为0.035%~0.072%时,用该预熔渣精炼后,成品钢中硫含量降至0.005%~0.019%(平均硫含量为0.009%),平均脱硫率由原固体合成渣的72%提高到89%,LF平均精炼时间由67min降至53min。  相似文献   

4.
铝硅钙锶钡合金中低含量的钡(0.OX~0.5%),因与大量钙锶共存,用化学沉淀法难于将钡进行有效的分离。目前筒无较好的比色方法,火焰原子吸收法检出限又较差。而采用ICP—AES法则灵敏度很高,检出限可达0.001微克/毫升,测定下限可达0.002%(对1毫克/毫升样品)。相对标准偏差小于4%,回收率在93~105%之间。  相似文献   

5.
16Mn钢V(N)微合金化在大规格高强度角钢生产中的应用   总被引:6,自引:0,他引:6  
大规格角钢主要用于铁塔和建筑结构中。唐钢过去用16Mn钢生产Q345级别角钢,因供轧制用钢的内控标准化学成分窄(T16Mn钢%:0.18~0.20C,1.35~1.55Mn,Ceq≥0.41),致使供轧率仅为30%。通过V-N微合金化,开发了T16MnV(N)钢(%:0.14~0.20C,1.30~1.60Mn,0.05~0.09V,0.009~0.018N),V(N)微合金化显著提高了该钢的力学性能:σb520~625MPa,σs395~465MPa,δ5 24%~28%,冲击功43~96J,并取得较高的经济效益。  相似文献   

6.
本发明涉及一种高韧性、高耐磨蚀性浆体管线用钢的制造方法,是经过冶炼、锻造、热轧、冷却后卷取,该钢的化学成分为:C0.02%~0.05%、Mn0.05%~1.0%、Si0.15%~0.45%、Cr0.50%~0.80%、Cu0.15%~0.40%、Ni0.10%~0.25%、Mo0.15%~0.30%、Nb0.02%~0.05%、Ca0.0010%~0.0080%、N0.0070%~0.03%、Ti0.01%~0.022%、S≤0.0060%。  相似文献   

7.
《铝加工》2012,(1):49-49
本专利提供一种抗疲劳性能优良的铸造铝合金,它的化学组成为(wt%):4~12%Si,〈0.2Cu,0.1~0.5Mg,0.2~3.0Ni,0.1~0.7Fe,0.15~0.3Ti,余量为铝。  相似文献   

8.
银阳极板中金的测定   总被引:1,自引:0,他引:1  
建立了经过用滤纸过滤后,留在滤纸上的微量金溶解和测定的方法。在8%~10%的王水介质中,用原子吸收光谱法测定金含量,其方法的检出限为0.025μg/ml,线性范围为1~4μg/ml,r=0.99995,样品加标准回收率为98.85%~101.59%,应用于银阳极板中金的测定。  相似文献   

9.
SZSC无铅喷金料中化学成分检测   总被引:2,自引:0,他引:2  
针对新开发的SZSC无铅喷金料各成分含量的高低,在工作实践中摸索出了不同的分析方法:Sn、Zn和Sb用容量滴定法,标准偏差分别为0.37%-0.157%;铜用分光光度法标准偏差为0.011%~0.016%。  相似文献   

10.
利用60tLD→60tLF→CC,采用转炉高拉碳,硅钙钡、铝铁复合脱氧工艺,过程Als控制在0.010%~0.020%,精炼末期喂硅钙线等措施,通过对10炉生产数据进行跟踪采集,检验结果表明:河南济钢40Cr钢生产过程稳定,成分控制精确;LF精炼过程增氮0.0022%,连铸过程增氮0.0017%;钢坯T[O]平均为0.0010%,T[N]平均为0.0057%,钢材组织为铁素体和珠光体,晶粒度8.5级,各项检验达到标准要求。  相似文献   

11.
实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。  相似文献   

12.
正Shijiazhuang City will build the world’s biggest replacing-copper-with-aluminum cable production base,the annual output value can reach 100 billion yuan,in the future it will develop replacing-copper-with-aluminum highend industry cluster.This piece of news was learned by the reporter at the Rare Earth highiron Aluminum Alloy[Nonferrous Business Opportunity:Aluminum alloy door]Cable Conductor New Technology Application Seminar held at the provincial capital.  相似文献   

13.
正Since the beginning of Chongqing’s upgrading to a municipality directly under the Central Government,Chongqing City has established direct friendly relationship with Almaty,Kazakhstan,and carried out a series of cooperation in commerce and trade,and culture  相似文献   

14.
正"For each tonne of aluminum being produced,the upstream enterprise on the aluminum industrial chain will suffer loss about 2000yuan."Said Liang Xiao,Deputy Director of Pingguo Industrial Park Management Committee under the Guangxi Baise City,one of the four major aluminum industry bases in China,on August 11.Extending aluminum  相似文献   

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16.
正Immediately after the news that Chinalco transferred 58%stock equity of Yunnan Copper Group to its wholly-owned subsidiary China Copper Corporation Limited free of charge was disclosed on July 9,many individual investors couldn’t help but to think:Does it mean China Copper Corporation Limited will assemble assets for overall listing?At present,among main copper business companies under China Copper Corporation  相似文献   

17.
正At the press conference recently held by the National Development and Reform Commission under the theme"Deepen Reform in Investment AuditApproval System",when answering questions from reporters,Huang Min,Director of the Department of Fixed Assets Investment of the National Development and Reform Commission,said that in the future it would continue to intensify efforts in geological prospecting,and actively guide social capital to enter this field.  相似文献   

18.
正Recently,Guangxi Metallurgical Research Institute,a subsidiary of Guangxi Nonferrous Metals Group,completed survey on laterite and related manufacturers in the region,by combining the current development status of laterite both at home and abroad,it compiled Guangxi’s first"Research Report on the Development of Guangxi Nickel Industrial Chain"which adopted laterite as the study subject.This report expounded on the current  相似文献   

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