热处理炉的新结构与新技术

新型热处理炉研制了全纤维炉衬结构、高速调温自控烧嘴和计算机自动控温系统；大能量集中供热、强化对流传热、脉冲式控制供热等技术，建立新的供热方式；研制了集中排烟、炉压自动控制系统、炉体全密封系统等技术有效地控制炉内热流，建立新的炉内热流控制方法及理论。开发了活动组合式、现场组装拆卸式、车载式等灵活多变的新炉型。在提高热处理精度、节约能源和保护环境等方面取得显著效果。

New Construction and New Technologe of New Type Heat Treatment Furnace

Assembly technology for big blocks of full refractory fiber and light type steel construction are adopted in the new type furnace. The furnace body has the advantages of light weight, good heat insulation, easy installation and long use life. The developed automatic adjustable high speed burners has the advantages of burning process under control, high outlet speed, sufficient burning, forced circulation of gas in furnace and new heat supply method about large energy concentrate heat supply, strengthening convection heat transfer and pulse type heat supply is made. The developed technology of central exhaust, pressure automatic controlling in furnace, full seal of furnace body can control heat current in furnace effectively. New controlling method of heat current in furnace is made and the uniformity of temperature field in furnace is increased. The heat treatment technical curve could be calculated, operated, displayed and stored by means of the computer automatic control system. So the whole procedure is under control and high precision heat treatment is achieved. Varies of new type furnace such as movable furnace body assembly type, local assemble taking apart type, loading on truck type are developed. Different type of furnace could be selected according to different technical request, different size of work-piece and different installation site. Great breakthrough has been made in heat treatment furnace technology in China. Obvious effect is achieved in aspect of increasing precision of heat treatment, energy conservation and environmental protection. The integrative technology of new type furnace has caught up with and even exceeded the foreign advanced level. But the status of heat treatment furnace applications nowadays is rather behindhand. Application of new technology should be greatly pushed.