| 摘要 |
A hot air soldering and resoldering system may include means for also generating a jet of room-temperature or cold air. The hot air jet issues from a jet tip having an axial bore. The air is heated by a heater element and closed in a conventional heater sleeve. Surrounding the heater sleeve is a retainer sleeve to form a large preheating chamber. The jet tip is provided with a tip assembly sleeve which extends between the heater sleeve and the retainer sleeve but is substantially shorter than the retainer sleeve. A heating chamber is formed between the heater sleeve and the tip assembly sleeve which is connected to the bore through the tip. The temperature control disposed in the handle of the instrument. Also, the air flow is controlled. This will provide a jet of hot air which may be used for liquifying a small amount of solder and hence can be used for soldering and resoldering.
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