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- The effect of pre oxidation of the Kovar alloy Fe Ni Co on the resulting glass Kovar seal has been studied using metallography, XRD and SEM. 采用金相、 XRD、 SEM观察分析了 Kovar合金 (铁镍钴合金 )氧化膜的连续性、厚度对封接件的透气率、抗拉强度的影响。
- The high-temperature plasma entered through the breach and melted the supporting materials such as Al alloy and Fe,Ni base alloy, which result in the space shuttle Colum... 对于航空、航天与核动力领域中广泛采用的通用关键材料,应该加强其制备工艺的研究,特别是可视化铸造技术的研究。
- The influences of heat treatment on structure micro hardness, static corrosion resistance in normal temperature and hot solution corrosion resistance of electroless Ni P and Ni Co P alloy coatings were studied. 研究了热处理对化学沉积Ni-P、Ni-Co-P合金镀层的组织结构、显微硬度、常温静态腐蚀性能和热溶液腐蚀性能的影响。
- It is the analysis of the different co al an d the operation of furnace to imp rove the efficiency and cut down the costing. 通过分析燃煤、煤层厚度、炉排速度及供风量对热风炉的影响,提出了热风炉调节和使用中应注意的问题。
- The characteristics of hydrogen evolution of the Ni Co Mo cladding which was produced under designed technology conditions have been studied in laboratory. 研究了获得Ni-Co-Mo复合镀层的最佳工艺条件及该镀层的析氢催化活性。
- Th e calculation methods of coal bed gas reserves are different from those of conv entional gas reserves because of the unique geological characteristics of the co al bed gas. 煤层气独特的地质特征决定了其储量计算方法有别于常规天然气。
- T2 Cu/2A50 Al alloy was bonded by blacksmith diffusion welding technology. 采用锻接扩散焊法进行了T2铜/2A50铝合金异种材料的焊接。
- Rhas been applied in commercial production for treatment of Cu一Ni一Co sulphide,recovery of PGM, extraction Zn from sulphide concentrate andpre-oxidation of refractory gold ores. 这项技术已经在铜镍钴硫化物的处理,铂族金属回收,硫化锌精矿提取锌及难处理金矿预氧化等方面得到了工业化应用。
- The vacuum differential-pressure casting (VDPC)technol ogy for thin-wall ed Al alloy was introduced. 介绍了用于薄壁铝合金铸件的真空差压铸造工艺。
- The stress-strain date and curve were obtained from the isothermal compression experiment of 7A04 Al alloy. 根据等温压缩实验得出7A04铝合金应力-应变数据,拟合出材料温成形应力-应变曲线。
- This paper discussed the idea of the gas atomization Mg and Mg - Al alloy powder by supersonics high ptire N2 gas. 介绍了用超音速高纯氮气流来生产气雾化镁和镁铝合金粉的设想。
- PM high strength Al alloy is very important light weight material in automobile. 粉末冶金高强度铝合金是重要的汽车轻量化材料。
- Ce conversion film was obtained on surface of Al alloy LY12 by immersion process. 利用浸渍法在铝合金LY12表面上获得了稀土转化膜。
- Keys to technology and die design of stamp-ing of Al alloy profile have been introduced. 介绍了铝合金型材在冲压加工时的工艺特点和模具设计要点。
- EPMA analysis shows that ZnBTA can also inhibit the absorption/aggre-gation process of Cl~- on the sample surface of Al alloy. 电子探针分析结果证明,ZnBTA 可以阻滞 Cl~-在铝合金表面的吸附聚集过程。
- 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。
- Scandium-modified Al alloys are a new kind of high performance alloys. 钪改性的铝合金是一类高性能新型铝合金。
- Abstract Furan resin sand is poor in collapsibility when it is used for Al alloy casting,specially for some large、thin section castings. 呋喃树脂砂用于铝合金铸造时,特别是对于一些大型、薄壁铝合金铸件,型芯的溃散性较差。
- The industrial practical crystallizer for Al alloy in low-frequent electromagnetic casting was designed based on the above mentioned idea. 结合生产实际情况,设计出工业上实用的低频电磁铸造铝合金结晶器。
- Rapid drawing water method after flood in local small co al mine 一种地方小矿井水灾后快捷排水法