| 摘要 |
PROBLEM TO BE SOLVED: To provide a reflow furnace which is reduced in cost by simplifying its structure and can more uniformly heat an object to be heated in the heating-up section of the object and can keep the temperature of the object constant in the temperature-keeping section of the object. SOLUTION: This reflow furnace is provided with a first heat insulating structure section 12 which thermally insulates an object preheating zone PH in which the object 8 to be heated is preheated from the outside, a first air heating heater 50 which heats the object 8 in the section 12 with hot air, and first infrared heaters 60A and 60B which heat the object 8 in the section 12. The furnace is also provided with a first air circulating section 40 which circulates the air in the section 12, a second heat insulating structure section 14 which thermally insulates a properly object heating zone RF in which the preheated object 8 is properly heated and is integrated with the first heat insulating structure section 12, and a second air heating heater 150 which heats the object 8 in the section 14 with hot air. In addition, the furnace is also provided with second infrared heaters 160A and 160B which heat the object 8 in the section 14 and a second air circulating section 140 which circulates the air in the section 14. |
