preforms

  • v.把…初步加工;预先形成[决定]
  • n.焊料预成型(preform 复数)
  • preform的第三人称单数
preformspreforms
  1. Study on the Fabrication Processing of Carbon Short Fiber Preforms

    碳短纤维预制件制备工艺研究

  2. Analysis on The Influence of Injection Process and Equipment on Viscosity Drop of PET Preforms

    浅析注塑工艺与设备对聚酯瓶坯粘度降的影响

  3. Review of studies on preparation of porous preforms for liquid precursor infiltration

    液相浸渗用多孔预制体制备的研究现状

  4. A new generation of 3D woven preforms and their composites

    新一代三向织物及其复合材料

  5. Preforms with waveguide structure have been formed by using a built - in casting method .

    用内铸法制得了具有波导结构的预制棒。

  6. Experimental study on the compressibility of 3D braided carbon preforms

    三维编织炭纤维预制件压缩性实验研究

  7. On the Structures and Weaving Technology of 3D Fabric Preforms with Various Shapes

    非平面状3D结构织物及其织造技术综述

  8. Simulation of Preforms in 3-D Braided Carbon / Carbon Composites

    三维编织碳碳复合材料预制体结构模拟

  9. Preforms with homogeneous distribution of large and small particles are made by ultrasonic dispersing technology .

    用超声分散工艺获得了不同粒径颗粒分布均匀的预制件。

  10. The Structural Design and New Weaving Technique of 3D Angle-interlock Preforms for Composites

    复合材料用3D角联锁结构预制件的结构设计及新型织造技术

  11. Three weaving methods of cone-shaped tubular woven preforms were discussed .

    分析了三种锥形管状预成型机织物的织造方法。

  12. This plane weaving method can be extended to produce other types of joint preforms .

    这种平面织造方法也适用于其它多种接头织物的织造。

  13. Study on Capillary Pressure of Fabric Preforms

    织物预成型体毛细作用研究

  14. Progress in Research on Preforms Made of Discontinuous Reinforcements

    非连续增强相预制块的研究进展

  15. With the fabricated preforms , the pressure casting process of porous aluminum alloy was studied .

    利用所制备的预制块,研究了多孔铝合金的加压铸造工艺。

  16. Process parameters design of three-dimensional braiding preforms

    三维编织预制件的工艺参数设计

  17. SiC preforms with different volume of porosity were obtained by modulating graphite content .

    通过调整石墨含量,能获得不同孔隙率SiC预成形坯。

  18. Research on Vertical Permeability of Fabric Preforms

    织物预成型体厚度方向渗透特性研究

  19. Preparation of SiCp / Al Electronic Packaging Composite Preforms

    SiCp/Al电子封装复合材料预成形坯的制备

  20. Textile preforms and their composites manufactured with friction spun core yarns

    摩擦纺包缠纱纺织预型件及其复合材料的加工

  21. Index system for PET bottle preforms

    PET瓶坯制造系统

  22. A Study on Densification Laws of Rotary Forging Powder Sintered Preforms and Property of Components

    粉末烧结体摆辗致密的规律以及压实体的性能分析

  23. Simulation of Solidification Behavior in Spray-deposited Si-Al Preforms Used for Electronic Packaging Materials

    喷射成形电子封装Si-Al合金凝固过程模拟研究

  24. Research on Manufacturing Technoloty for Large-size Preforms by Using High-efficiency PCVD Process

    高效率PCVD法大预制棒制造技术研究

  25. Numerical simulation of temperature fields during unidirectional squeeze infiltration of pure metals into fibrous preforms

    纯金属单向压力浸渗过程温度分布的数值模拟

  26. The structures of three dimensional ( 3 D ) textile preforms and composites are discussed in this paper .

    本文主要讨论了三维纺织预制件及其复合材料的结构特点。

  27. Based on design results of different preforms , some important parameters of braiding process and braided preforms were studied .

    然后,基于一些编织结构预制件设计结果,分别对编织工艺以及编织预制件主要参数进行系统研究分析。

  28. Weaving of 3-Dimensional Preforms for Fibre Reinforced Composites on Conventional Looms

    传统织机上纤维增强复合材料三维预型件的织造

  29. Sintering Behavior of B_4C / Ni Porous Preforms and their Liquid Pb Metal Infiltration

    B4C/Ni多孔预制体的烧结行为及对金属铅的浸渗

  30. The hydrostatic stress shows great effect on the densification deformation of spray deposited preforms during rolling .

    多孔材料流变应力呈稳态特征的临界变形温度和应变速率比致密材料大;