查询词典 metal-organic

The research indicate that the performance of brazing joint using Al-Ge-Si brazing filler metal precedes to the one using HL401 brazing filler metal. And the main reason is that brittle compound such as Cu2Al is not appeared in brazing joint.

本研究建立的2090Ce铝锂合金钎缝组织形态成长模型以及母材溶解厚度控制模型对钎料的选择、钎焊工艺参数的选择及接头钎焊间隙的确定等具有重要的参考和指导作用。

Compared with the joint brazed with Cu-Ti filler metal, the content of Cu in the reaction layer adjacent to the stainless steel is higher than the joint brazed with Cu-Co-Ti filler metal, so is the content of Nb in brazing seam.

与Cu-Ti钎料接头相比，Cu-Co-Ti钎料接头中钎缝与不锈钢侧的反应层中Cu含量较高，钎缝中Nb含量也较高。

AgCuTi active filler metal exhibits a good wettability to brazing cBN, joint interface between filler metal and cBN is compact, and a reaction layer is formed between them.

AgCuTi 活性钎料对cBN的润湿性较好，界面结合紧密，并在界面处形成反应层。

Ag-Cu-Ti active filler metal exhibits a good wettability to brazing c-BN, joint interface between filler metal and c-BN is compact, and a reaction layer is formed between them.

Ag-Cu-Ti活性钎料对c-BN的润湿性较好，界面结合紧密，并在界面处形成反应层。

Using high frequency induction brazing and TiZrNiCu filler metal, the shear strengths of the joints were low. The maximum shear strengh was only 102.1MPa, which was lower than the maximum strength of vacuum brazing. The reasons may be that excessive intermetallics, holes and oxidation existed in the joint. So TiZrNiCu filler metal isn't fit for non-vacuum brazing.The stress variation, stress distribution and crack-sensitive regions during the cooling process of brazing have been studied by Marc non-linear software.

采用气体保护高频感应加热、TiZrNiCu钎料钎焊时，接头的强度普遍偏低，最高的剪切强度只有102.1MPa，远远低于辐射加热真空钎焊的强度，其原因是接头中局部生成了过量的金属间化合物，且产生氧化，接头中含有较多的气孔等影响了接头强度，因此可以认为TiZrNiCu钎料不适合在非真空条件下的钎焊。

Ti element is found to aggregate, forming an ultra-fine reaction layer in the active filler metal-ceramic joint after 260℃/24hr aging treatment. Two different-color intermetallic compounds are observed in the interface of active filler metal-copper. One is Cu6Sn5 , which is closer to active filler metals;the other is Cu3Sn, which is closer to the copper substrate.

接合后之试片，经260℃/24hr时效反应后，发现Ti元素聚集於焊料与陶瓷界面处形成一层极薄的反应层且发现在焊料与铜之反应界面有了明显颜色不同之两层介金属层生成，靠近焊料端的介金属层为Cu6Sn5，Cu片端的是Cu3Sn；而Cu6Sn5化合物从原本未时效10μm成长为25μm。

Companies specializing in the production of various types of metal junction box, metal panels, electrical products such as electrical manufacturing-based and has many years of rich experience in production.

公司以专业生产各类金属接线盒、金属面板、电工电气等产品制造为主并有多年的丰富生产经验。

Kempers' study , the more layers the mesh screen type had, its resistance against gravity was higher, but its heat resistance and flow resistance were comparatively augmented. As mentioned in the preceding paragraph, it is extremely difficult for a single micro structure based on any of the three types to possess both low flow resistance and strong capillary force. Faced with this fact, the researchers have tried to mix the three micro structures in Table 2 into as many combinations as possible so that a composite micro structure with low flow resistance and great capillary force may be fabricated. After a thorough analysis, the groove combined with sintered metal or mesh screen has been found to be a better alternative. However, the groove combined with sintered metal will raise the flow resistance of the channel, and the aluminum substrate employed in this research cannot be sintered into a micro structure. As a result, the groove combined with mesh screen is finally chosen as the composite structure to enhance its capillary force and at the same time maintain its high permeability. In this way, the heat pipe will not fail due to the working angles.

Kempers 的研究当中提到，当网格结构越多层时，其对抗重力的能力也越强，但相对的其热阻以及流阻也越高，就如同前段所述，我们很难在单一结构当中找出一流阻低且毛细力之微结构；因此本研究便以表2中之三种微结构进行组合，找出一低流阻且毛细力强之复合式结构，经分析发现，沟槽搭配烧结以及沟槽搭配网格为较佳之组合方式，但由于烧结搭沟槽构造将会提高流道之流阻，且本研究使用铝做为基材，并无法使用烧结最为其微结构，故将采用网格搭配沟槽之复合式结构提高结构的毛细力，并维持沟槽结构的高渗透性，解决因角度造成热管失效的问题。

Machine —— Gasket Cutting Machine, Common Spiral Machine, Numerical Control Spiral Maching Machine, No Core Spiral Making Machine, Metal ring rolling machine(make big size rings for spiral wond gasket), Metal Ring Notch Milling Machine spiral wound gasket rings kerve and angle

机器——垫片切割机，普通缠绕机，数控缠绕机，无芯模缠绕机，金属盘环机，金属环铣槽机，钢带成型机，垫片包边机☆盘根——膨胀石墨盘根碳化纤维盘根芳纶盘根碳纤维石墨盘根碳纤维四角，膨胀石墨混编盘根

Plastic key holder 、 Metal key holder 、 Metal badge.

/ 胶匙牌、金属匙牌、金属徽章。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐