Hot air leveling includs PCB pre-process,flux coating,solder immersion,hot air leveling,post-processing of hot air leveling and so on.

5～2min and O2 content in hot airflow of 8.

By way of composite treatment of three indexes,the better combination consist was obstained : the temperature is 70℃,the speed of hot airflow is 1.

The Research of Combined Vacuum Freeze and Hot-air Drying for Moso-bamboo Shoots;

Effects on potato crispy chips of every factor which were determined during hot-air drying with different original humidity content.

Uneven heating during the drying process of longan meat by hot-air and microwave is a big problem.

In this paper the structure,process characteristics,the calculation and selection of process parameters,the attentions in the application,economic benefit and development scale of closing and overlying hot blast cupola system was introduced.

Study on method for drying thin layer day-lily by microwave and hot air;

Based on calculation of heat engineering,ways decreasing ignition energy consumption using hot air are discussed.

This paper presented the structure of circulating fluidized bed boiler and the hot air system.

On "The Hot Wind" ——At the 80th Anniversary of the Publication of "The Hot Wind";