MANUFACTURE OF WELDABLE RESIN PRODUCT, RESIN PRODUCT WELDED BY THE SAME, AND METHOD FOR WELDING RESIN ARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a method for welding a resin article having a problem in an economy due to an increase in a size of a mold, an injection molding machine or the like in the case of an integration. ;SOLUTION: The method for manufacturing a weldable resin product comprises a step (1) of manufacturing a resin product to be manufactured to have a protrusion for expediting a concentration of a thermal energy at a welding surface of components by dividing the product into the plurality of the components, a step (2) of softening the protrusion provided on the welding surface by inserting a heater to a predetermined depth, a step (3) of welding the welding surfaces by removing the heater, and a step (4) of manufacturing a complete article of the product by sequentially completing for all the components of the welding works. The method further may comprise a step (5) of removing an internal stress due to heat, and a step (6) of inspecting whether a defect such as a craze, crack or the like is present at a welded surface or not.;COPYRIGHT: (C)1999,JPO