钎焊的

When the soldering temperature and soldering heat-retaining period is identical, the diffusibility of Cu in the rapid-solidifying solder is remarkably higher than that of the ordinary solder.

同时，在相同的钎焊条件下，快冷钎料Cu元素的扩散能力均比普通钎料的扩散能力强。

Series of Bi-Pb-Sn-Cd fusible alloys were designed with reference to the characteristics of Bi-based alloy and their phase diagram.

Bi Pb Sn Cd易熔合金的熔点低、熔化范围窄，且具有良好的钎焊性能，常用于制作电器、消防、火灾报警等装置中的感温和热敏元件[1]。

The lattice relaxation in the CVD diamond thick films were detected by the X-ray diffraction attachments. It is associated with self-annealing of diamond thick films in the process of long time deposition. The wearing discrepancy of diamond coated cuttings and diamond thick films brazed cuttings is well illustrated by means of lattice relaxation.

用X射线衍射仪的薄膜附件测试分析金刚石厚膜内的晶格松弛现象，发现沉积金刚石厚膜过程中存在高温自退火的作用，运用晶格松弛的观点很好地解释了金刚石薄膜涂层刀具与厚膜钎焊刀具的耐磨性能差异。

The results showed that the three kinds of prealloy powder have excellent low temperature sintering characteristics and good wear resistance. They have excellent physical and mechanical characteristics close to ultrafine cobalt and imported prealloy powder, good retention to diamond and excellent bonding momental for high frequency brazing. At one time, they have lower cost and reduced dosage.

结果表明：三种预合金粉末有着优良的低温烧结性能和耐磨性，表现出接近于超细钴和相当于国外代钴粉末的优良的物理、机械性能，对金刚石把持力高；具有高的高频钎焊结合力矩；粉末成本较低，用粉量可降低。

Therefore, it is a reliable service for your soldering and welding process to provide full responsibility for the support.

因此，有可靠的服务为您的钎焊及焊接加工提供全面负责的支持。

The electromagnetic shielding fabric has high conducting performance, is weldble, flexible and ventilative, and can isolates sulfur in insulating material.

采用本发明的方法制备的锡包铜电磁屏蔽纺织品，导电性好，易钎焊，能够隔离绝缘材料中硫的作用，能保持纺织品原有的，如柔软性、透气性、强伸力等风格。

And for brazing, the quality of welding connector has much to do by thewelding temperature in the welding course.

而对于钎焊来说，焊接接头质量的好坏，与焊接过程中的温度有很大的关系。

On the base of summing up the present research .giving the prospect of the high-temprature brazing diamond tools.

在总结国内外研究的基础上，提出了今后研究过程中亟待解决的问题，展望了高温钎焊金刚石工具的发展前景。

In view of the development about the certain airborne radar antenna array,considering the structural features of antenna array,analyse the cruces in manufacturing of feed cavity and radiant plate,and present the corresponding solution by mainly dealing with precise positioning style,delicate clamp design,error distribution and compensation method,high speed machining technology design,machining simulation and program optimizing.

某机载雷达平面裂缝阵列天线的单面阵如图1所示。该面阵布置多路裂缝线源，共分布384处长度各不相同的辐射裂缝，每一路线源均由脊型波导口单独馈电。面阵由辐射板和馈电腔两个零件组成，采用整体钎焊成形。线源结构为非对称单脊共线形式，即在普通单脊波导的两侧与辐射裂缝相对应的位置上布置不对称的凹台。

The company is under the jurisdiction of 843 state-run factories of Industry Corporation of weapons (the Qin chuan of the North of Xi'an now ), have cooperated with unit experts and technical staff such as Zhejiang University , Tsing-Hua University , Xi'an Communications University ,etc. for many years, in absorb , digest Company and AG reaction of Company , BBC of Germany , heat power at the technological foundation, develop , help integrated circuit control and digital control circuit brilliant floodgate in charge of the power of intermediate frequency, apply various smelting , being completely hot , quenching metal to , return bend and reaction heat field of brazing, make reaction heating technology of our company in in a leading position competence at home.

公司隶属于兵器工业总公司国营843厂（现为西安北方秦川有限公司），多年来同浙江大学、清华大学、西安交通大学等单位的专家及技术人员合作，在吸收消化德国BBC公司与AG公司的感应加热电源技术基础上，研制成全集成电路控制及数字控制线路晶闸管中频电源，应用于各种金属的熔炼、透热、淬火、弯管及感应加热钎焊领域，使我公司的感应加热技术在国内处于领先水平。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。