汽车空调散热器全自动氮气保护钎焊炉的研制

Design of Fully Automatic Nitrogen Protection Brazing Furnace of Automotive Air Conditioning Radiator

全自动氮气保护钎焊炉是汽车空调散热器铝材焊接的关键设备。钎焊的工艺是将装配好的汽车空调散热器的芯体送入钎焊炉,经喷淋焊剂、干燥炉烘干、加热炉进行焊接,然后通过水冷室、风冷室进行冷却完成散热器的钎焊。技术关键是加热炉钎焊温度和含氧量的控制。通常采用在钎焊过程中向炉内充氮气,使炉内含氧量控制在70ppm以下。加热炉的进出口设置前室和后室,内置不锈钢幕帘阻挡空气的混入。介绍该设备的结构、部件、主要技术参数以及调试办法等。

The NB type entire automatic nitrogen protection brazing furnaee is the essential equip- merit in aluminum welding. The brazing process includes sending the core of the assembled automotive air conditioning radiator into the brazing furnace, through being sprayed the flux,dried in the drying oven and heating furnace to weld, and then the welding is completed after being cooled in the cooling room and air cooling roonuThe key technology is the control of the temperature and the oxygen content of furnaee braz- ing.It is commonly used to aerate nitrogen during the brazing process into the furnace ,to guarantee oxygen content in the furnace is controlled below 70ppm.The import and export of the furnace is set with the front room and after room,with built-in stainless steel curtain to block the air.The structure of the equipment, components, main technical parameters as well as debugging approach is introduced.