Method for providing integrated composite article made of metal and resin

A method for providing an integrated composite article made of a metal and a resin, comprising:

• forming the integrated composite article by:
• providing a crystalline thermoplastic resin composition as a resin material, containing:
• an aliphatic polyamide by 50% to 90% in a resin part and a semi-aromatic polyamide by 50% to 10% in the resin part, and a glass fiber by 30% to 35% in a total resin composition of the resin material is further provided in the crystalline thermoplastic resin composition;
• placing at least one of elongated plate of any of Al alloys A5052, A5083, A6061 and A2024 having a thickness of 1.0 mm to 1.5 mm in a metallic mold for an injection molding, so as to set a position for insertion of the at least one of elongated plate of any of Al alloys A5052, A5083, A6061 and A2024;
• closing the metallic mold;
• and
• injecting the crystalline thermoplastic resin composition into the metallic mold to form the integrated composite article;
• wherein the integrated composite article has a form such that:
• the at least one of elongated plate of any of Al alloys A5052, A5083, A6061 and A2024 is joined face to face with a molded article of resin in a central position thereof for a situation of having one elongated plate or in a parallelized form in an elongated direction for a situation of having a plurality of the elongated plates,
• the molded article of resin having a form of a plain plate and having a thickness of 2.5 mm or more and an area of 400 cm2 or more,
• the integrated composite article being a plate shaped member provided as a roof, a fender, an outer face of a door, of a moving machinery including an automobile.

A method for providing an integrated composite article made of a metal and a resin, comprising:

• forming the integrated composite article by:
• providing a crystalline thermoplastic resin composition as a resin material, containing:
• an aliphatic polyamide by 50% to 90% in a resin part and a semi-aromatic polyamide by 50% to 10% in the resin part, and a glass fiber by 30% to 35% in a total resin composition of the resin material is further provided in the crystalline thermoplastic resin composition;
• placing at least one of square bar obtained from any one of Al alloys A5083, A6061 and A2024 or obtained through a machining process of square bar obtained through an extrusion processing of any one of Al alloys A5083, A6061 and A2024 for casting and having been subjected to a heat treatment and having a square of 5 mm and a length of 100 mm or more in a metallic mold for an injection molding, so as to set a position for insertion of the at least one square bar in a metallic mold, the square bar having been subjected to a chemical treatment of NMT;
• closing the metallic mold;
• and
• injecting the crystalline thermoplastic resin composition into the metallic mold to form the integrated composite article;
• wherein the integrated composite article having a form such that:
• the square bar is contained to be buried in a molded article of resin having a rod-shaped contour with a dimeter of 15 mm to 20 mm and a length of 50 mm to 150 mm in a central position thereof and a whole surface of the square bar is joined with the molded article of resin,
• the integrated composite article being provided as a member for a pillar portion of a seat including a driver seat or a passenger seat, of a moving machinery including an automobile.