| 摘要 |
<p>A hot air heating device and hot air heating method are provided. The device includes a hot air output pipe (3), an output air hood (1) and a port connection device (2). The output air hood (1) includes an air hood connection end and a brush heat-resistant threads (11) surrounding and connected with the air hood connection end and thereby forming tubular arrangement. The output air hood (1) is connected with the output port of the hot air output pipe (3) via the port connection device (2). The above device is used in the method for heating the surface of a heated element. The output air hood (1) with brush heat-resistant threads (11) is arranged at the hot air output pipe (3) of a prior hot air heating device, thus an operation distance between the hot air output pipe (3) and the heated element is easily controlled by an operator, and part of hot air can leak out from gaps among the heat-resistant threads (11), which ensures hot air to flow smoothly in the hot air pipe.</p> |
