难检字字典在线查询

汉语拼音：qiān hàn

用在接触处熔化诸如黄铜和钎焊料之类的非铁填充金属（其熔点低于基体金属的熔点）来焊接金属。

1. 焊接方法的一种。利用熔点较焊件为低的焊料(填充金属)和焊件连接处一同加热(用加热炉、气体火焰、电烙铁、电流等)，焊料熔化后，渗入并填满连接处间隙而达到连接(焊件未经熔化)。钎焊时为了造成牢固的连接，通常须在连接处加焊剂，以保护金属表面和焊料在加热时不受氧化并去除氧化物，借以提高焊料对焊件的渗附能力。

• The microstructure of the brazed joint was analyzed by means of a scanning electron microscope and an energy spectrum analyzer.

  用扫描电镜和能谱分析仪对钎焊接头的显微组织进行了分析。

• A solder paste used for brazing was developed and its technical performance was investigated.

  研制了铝硬钎焊用钎料膏，对其工艺性能进行了研究。

• performs well in high temperature applications and is easily joined by soldering or brazing. Wrot coper is exclusively used for fittings.

  在高温环境下，铜也表现很好，而且易于通过焊接或钎焊进行连接。铜专门用作配件材料。

• The ultrasonic soldering process of aluminium heat exchangers and a few important factors effecting on the soldering are reviewed.

  论述了铝热交换器的超声波钎焊工艺及其影响钎焊的几个关键因素。

• Brazing is the main processing methods of heat transfer, and also is a determining factor of affecting the heat transfer effect.

  钎焊是换热器的主要加工方法，也是影响换热效果的决定因素之一。

• In the practical production of equipment such as air conditioner, torch soldering is usually used to weld copper tube.

  在空调等设备的生产中，经常采用火焰钎焊工艺来焊接紫铜管。

• These alloys are used for welding and brazing filler materials and for sand and die castings.

  这些合金用于定位焊接和铜焊（硬钎焊）的焊料，和用做打磨或模铸。

• Medium frequency transformer quenching is used for workpiece diathermy , quenching, annealing, brazing, etc.

  中频淬火变压器用于工件的透热、淬火、退火、弯管钎焊等工艺。

• WELDED AND BRAZED ASSEMBLIES FOR AEROSPACE CONSTRUCTIONS. FRICTION WELDING MACHINES. QUALIFICATION SPECIFICATIONS.

  航天工业用焊接和钎焊组件.摩擦焊接机.合格规范