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- The following results were obtained from experiments: (1) There exist Cu 2+ in the precursor of Cu Zn Al O catalyst. 结果表明:Cu?Zn?Al?O催化剂前驱体以Cu+2形式存在;
- The white corrosion products on hot dip Zn Al alloy coating exposed to seawater in dynamic aerated immersion were investigated by means of XRD and TEM. 采用XRD和TEM对热浸锌铝合金镀层在动态充气海水全浸试验时所形成的白色腐蚀产物进行了研究。
- The strengthening mechanism of Zn Al Cu pseudo alloy coating and relationship among hardness,aging temperature and time are studied by SEM,XRD,EDX and hardness test. 利用扫描电镜(SEM )、X射线衍射分析 (XRD)、能谱分析 (EDX)和硬度测试等手段 ,对涂层的性能进行了测试 ,分析研究了Zn Al Cu伪合金涂层硬度与时效温度和时效时间的关系 ,并探讨了强化机理。
- The friction and wear properties of 2 kinds of high strength Zn Al alloys and 3 kinds of Cu alloys are demonstrated. Under different lood and rotative velocity, the friction factor and abrasion wear of the alloys and their coupling samples are given. 采用MM200磨损试验机,测定和对比了铸造锌铝合金(ZZnAl27Cu2A和ZZnAl27Cu2D)和工业上常用铜合金(ZCuSn6Zn6Pb3,ZCuA110Fe3和ZCuZn33Mn2Pb2)的摩擦磨损特性。
- ICP-AES DETERMINATION OF Cu Fe Cd Zn Al AND Bi AS IMPURITIES IN TIN-LEAD SOLDER ICP-AES法测定锡铅焊料中铜铁镉锌铝铋
- Keywords Zn Al alloy;super plasticity;phase boundary sliding(PBS); 锌铝合金;超塑性;相界滑移;
- Al causes operated to bring about the war. 那场战争的起因有几个。
- The concert included works by Mozart et al. 音乐会上演奏莫扎特等人的作品。
- Keywords Zn Al Alloy;Bottom Shrinkage;Composition Undercooling;Gravity Segregation; 锌铝系合金;底缩;成分过冷;重力偏析;
- Mg- Al hydrotalcite 镁铝水滑石
- My name is Alexander, "Al" for short. 我叫亚历山大,简称艾尔。,我的名字叫亚历山大,简称“亚尔”。
- A hot dip Zn 5%Al RE coating on high carbon steel wire is tested. 试验了在高碳钢丝表面上热浸镀Zn 5%25Al RE合金层。
- Zn, Al, Cu, Mo, Pb, carbon steel, stainless steel, Alumina, Babbitt and so on. 锌、铝、铜、钼、铅、碳钢、不锈钢、氧化铝、巴氏合金等。
- It is found that Zn, which is like Al, Ga, are mainly in the Nd-rich phase. 这与Al,Ga的行为相同。
- Suitble for Pb free glazes with Ti or Zn. 适合含钛、锌无铅釉。
- We sale only goods in al condition. 我们只出售最佳状态的商品。
- Beijing ZN Electrical Apparatus Ltd. 北京智能电气有限责任公司。
- Precision ZN types can used for embossing print. 锌合金字耐磨、印字精确,可作压凹字使用。
- The concert included works by Tchaikovsky et al. 音乐会上演出了柴可夫斯基等人的作品。
- F can promote the emission of Pb,Cd,Zn and Cu. 氟会促进Pb,Cd,Zn和Cu的逸放。