| 摘要 |
PURPOSE:To heat only that portion of a heated object which shall be heated effectively and quickly by bending a wire for heat emission with a dia. less than 1mm, forming a specified heating space, and by heating the object with the wire contactlessly. CONSTITUTION:An electric heater element 18 is prepared for baking the protection glass for the body 12 of a Pt-film resistor 10 as object to be heated, and is composed of a heat emission wire consisting of a specified emitting material of a dia. less than 1mm. This wire has a dia. some larger than the outside dia. of the resistor body 12 and is wound into a cylindrical coil at a certain pitch over a length some shorter than the length of the resistor body 12. In the space of the heater 18 coil part 18a, the resistor body 12 coated with glass is inserted concentrically so that the center of the coil part 18a becomes approx. identical, current is supplied to the heater 18 according to the desired heat treatment schedule. |
