连续式铜硬钎焊炉结构设计及温控策略研究

The Structure Design and Research on Temperature Control Strategy of Continuous Cupro Braze Furnace

为满足铜硬钎焊节能环保要求,设计了智能化环保型连续式铜硬钎焊炉。对钎焊炉总体及钎焊室进行了结构设计,利用计算流体力学仿真技术研究了钎焊室热风搅拌装置对炉内温度分布的影响规律,并建立了钎焊炉智能温控策略。研究结果表明热风搅拌装置错开安装,转速相反时可有效扩大气体交换区域,有利于保证温度及惰性气体均匀分布;合理选择两搅拌装置转速差,可使炉膛内气流速度最大;分区控温技术使钎焊产品温度波动满足工艺要求。连续式铜硬钎焊炉可保证钎焊质量,降低能耗。

In order to meet the requirements of energy saving and environmental protection for copper brazing, an intelligent and environmentally friendly continuous copper brazing furnace was designed. The overall and brazing chamber structure of copper brazing furnace were studied The influence of hot air stirring device on temperature distribution in the chamber was investigated by using computational fluid dynamics simulation technology, and the intelligent temperature control strategy was established The results show that hot air stirring device stagger installation, speed opposite can effectively expand the gas exchange region, and help to ensure a uniform distribution of temperature and inert gas. The maximum flow velocity is obtained in the furnace while two stirrers have reasonable speed difference. Partition temperature control technology makes the temperature fluctuation meet process requirements. Continuous copper brazing furnace can guarantee the brazing quality and reduce energy consumption