Patent ID: 7866530

Claim:
A soldering iron station equipped with a molten solder reservoir having a heater connected to a heater power supply, soldering iron having a tip and a tip heater connected to a iron battery or external power supply, and said iron tip is submerged into the reservoir molten solder covering the tip solder-adhesive area, and a soldering iron has a tip constant-temperature control method, wherein improvement comprises: a) a wool which is non-solvable in the molten solder and covering the molten solder reservoir bottom and said wool is firm and thick enough to prevent an end of the tip from hitting the reservoir bottom; b) a reservoir having a cone-shape bottom ending with a closed-hole and supporting the tip by a transition line or area between the cone and hole, and said support line/area is located above a solder-adhesive area of the tip, and said closed-hole is deep enough to prevent the tip from reaching the said hole end.