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- 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;
- 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
- The applicational prospect of new type metal composite pipe in fire water supply system 新型金属复合管在消防给水系统中的应用前景
- Research Progress of Plastic Base Metal Composite Pipes 塑料基金属复合管研究进展
- The ceramic layer does not crack or flake off when the composite pipe receives a mechanical shock. 陶瓷内衬复合钢管具有良好的耐机械冲击性能。在受到一般性的机械冲击时,陶瓷层不碎、裂。
- 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。
- Question 4: How is multilayer composite pipe of PE/Steel/PE used in overseas market and if they are much in use? 问题四:聚乙烯/钢管/聚乙烯多层复合管道在国外的使用情况?
- 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。
- 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。
- The biaxial fatigue performance of a filament wound composite pipe has been investigated. 摘要对纤维缠绕复合材料管道的双轴疲劳行为进行了实验与理论研究。
- 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。
- It owns 9 soly-owned companies,in which Yifeng Aluminium Plastic Composite Pipe Co. 公司现拥有九个全资公司。
- 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。
- 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。
- Activated carbon powder and alloy powder is added into the thermite at the time of preparing CLSP(ceramic-lined steel composite pipe). 在制备陶瓷内衬复合钢管时,在铝热剂中加入活性碳粉、合金粉末,使原来纯铁过渡层成为钢过渡层,硬度大幅度提高,从而使钢管抗压强度明显提高。
- Plastic pipe reinforced by cross helically wound steel wires (PSP) is a new plastic-matrix steel composite pipe developed in China recently. 钢丝缠绕增强塑料复合管(简称PSP)是一种性能优良的新型复合管。
- Alumnium plastic composite pipe is succedaneum of zinc-plating pipe,of which the inner and outer larers are high-density polythere,and the middle layer is welding alumimium pipe. 铝塑复合管是镀锌钢管的取代产品。其内外层是高密度聚乙烯,中间层是焊接铝管,集塑料和金属的优点于一身,具有卫生无毒、不生锈、不易结垢、保温性能好等特点。
- 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 technological requirement,interface treatment technique,filament winding technology and quality control of FRP/plastics composite pipe are introduced in this paper. 本文主要介绍了FRP/塑料复合管道工艺技术要求、界面层处理技术、纤维缠绕成型工艺及质量控制。
- 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。