Melting heater and method for manufacturing molded article

The present invention relates to a heater for melting and a method for manufacturing a molded article, and provides a heater for melting capable of selectively heating a joining end surface of a semi-molded article. A melting heater (25) for melting joining end surfaces (45A, 46A) when the joining end surfaces (45A, 46A) of a pair of semi-molded articles (45, 46) are melted and joined to produce a molded article (47) is used as an object. The melting heater (25) is configured from two glass plates (30, 30) disposed in parallel, and a plurality of element heaters (28, 28) disposed as a whole as a flat unit between the two glass plates (30, 30). Infrared-controlled surface processing (35) is performed on the glass plate (30). 本发明涉及一种熔融用加热器及成型品的制造方法，提供能够选择性地加热半成型品的接合端面的熔融用加热器。将用于在将一对半成型品(45、46)各自的接合端面(45A、46A)熔融而接合从而制造成型品(47)时使接合端面(45A、46A)熔融的熔融用加热器(25)设为对象。将熔融用加热器(25)利用平行地配置的2张玻璃板(30、30)和在这2张玻璃板(30、30)之间作为整体而配置成平板状的单元的多根要素加热器(28、28)构成。对玻璃板(30)实施控制红外线的表面加工(35)。