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- Experimental Research on producing Double Metal Composite by Evaporative Pattern Casting Process 消失模铸造法制造双金属复合材料的试验研究
- Keywords Evaporable pattern casting under vacuum;Double metal composite bend pipe;Resistance to abrasion; 消失模真空吸铸法;双金属复合弯管;耐磨性;
- We often use multilevel drawbench.It is very compatible that the multilevel drawbench draws the different intension coefficient double metal. 同时,多级拉丝系统在拉拔抗拉强度系数不同的双金属丝时,也非常适用。
- The applications of metal membranes and metal composite membranes to hydrogenation and dehydrogenation reaction are introduced. 本文介绍了金属膜和金属复合膜在加氢和脱氢反应中的应用及金属复合膜的常用制备方法和发展趋势。
- The content of Fe and Zn of the double metal catalyst for the preparation of polyether were measured by using complex titration analysis method. 研究了用配位滴定分析方法测定聚醚多元醇用双金属催化剂中锌、铁含量的方法。
- A new experimental technique on the CTE measurement of metal composite leads in electronic packaging using laser speckle interferometry was presented. 在相对简单的实验设备下,得到较高精度金属复合引线的热膨胀系数值。
- The material and technology of manufacture of screw slag removre of double metal high Cr castiron and carbon steel have been investigated. 研究了制造高铬铸铁碳钢双金属复合排渣器的材料与工艺。
- Polyether polyols with high mlecular weigh, marrow molecular distribution and low monolwere prepared by using a double metal cyanide catalyst. 使用双金属氰化物络合催化剂，制备了分子量高、分子量分布窄、不饱和度低的低单官能度聚醚多元醇。
- The conventional techniques to prepare nanosized metal composite powder include mechanical alloying (MA), inert-gas condensation (IGC), plasma atomization and sonochemical synthesis etc. 摘要纳米金属复合粉末的制备方法主要包括机械合金化法(MA)、惰性气体冷凝法(IGC)、等离子雾化法、超声化学合成法等。
- This article reviews the recent progress in the synthesis, properties, and applications of noble metal composite nanoparticles with core-shell, heterostructure, and alloy structure. 本文主要评述了具有核壳、异质结构以及合金结构的贵金属复合纳米粒子的制备、物理与化学性能及应用等方面的研究进展。
- In double metal cladding waveguides, the separation and degeneration of TM 0 and TM 1 modes will appear as the thickness of guiding layer increases, this may confuse the judgement of mode orders in attenuated total reflection (ATR) spectrum. 在双面金属包覆介质波导中 ,随着介质层厚度的变化 ,会出现TM0 模与TM1 模的分离和简并两种状态 ,从而影响衰减全反射 (ATR)谱中模序数的确认。
- The experiment results show that under reaction temperature 80 C and reaction pressure 3.0 MPa, the reaction conversion is nearly 100% and the yield is beyond 90.0% with Ni-Co/C double metal supported catalyst. 实验表明，在温度110℃，压力3.;0MPa下，采用Ni-Co/C催化剂进行的加氢催化反应，原料转化率近于100%25，产物收率在90%25以上。
- Direct and some metal composition chlorides of chlorine under the moist circumstance. 氯在潮湿的情况下直接与某些金属合成氯化物。
- The polyether polyols which has higher molecular weight,narrower molecular weight distribution and lower unsaturation can be prepared by using double metal cyanide (DMC) complex catalysts. 用双金属氰化物(DMC)络合催化剂可制得相对分子质量高、相对分子质量分布窄和不饱和度低的聚醚多元醇。
- Electro galvanized iron wire :Is take the low-carbon steel as the core, through the wire drawing, the electricity galvanization craft processing makes the metallic composite. 冷镀锌丝：是以低碳钢为芯线，通过拔丝、电镀锌工艺加工制成的金属复合材料。
- Poly (propylene carbonate) polyols was synthesized by the copolymerization of carbon dioxide with propylene oxide in the presence of double metallic catalyst in loop reactor. 摘要以二氧化碳3环氧丙烷为原材料，在双金属氰化物催化剂催化下，利用环流反应器合成聚碳酸亚丙酯多元醇。
- Direct and some metal composition chlorides of chlorine under the moist circumstance . 氯在潮湿的情况下直接与某些金属合成氯化物。
- In this paper,the structure, manufacturing process and thermophysical properties of metallic composite thermal protection tile have been studied with prominent progression. 本文主要研究了,金属复合防热瓦的结构、制造工艺及热物理性能,并取得突破性进展。
- The TPO result indicated that the graphitization degree of the CNF depended on the active metal composition. TPO结果表明 ;Fe的存在提高了纳米碳纤维的石墨化程度 .
- Plastic parts made of hardened PVC, PE or similar materials, and non-ferrous metal composites, are transferred to a separate utilisation. 硬化的PVC,PE或者类似的材料以及非铁金属复合材料中的塑料部分可以再利用。
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