Metal powder injection molding system for metallic frame and the manufacturing method for metallic frame using the system

A method for manufacturing a basic metallic frame product, comprising the steps of:

• designing a shape of a product to be made by metal injection molding;
• making a mold based on the designed shape;
• mixing metal powder and a binder to make a mixture of the metal powder and the binder;
• injecting the mixture into the mold made according to the shape of the product to be made by the metal injection molding to make a metal injection molded product having molded side walls to make a metallic frame in such a way as to allow the molded side walls to intersect to provide the metal injection molded product having a closed shape;
• allowing the metal injection molded product to be subjected to supercritical debinding and thermal debinding, fixed to support means disposed on the insides of corners at which the molded side walls intersect to prevent the molded side walls from shrinking in longitudinal directions thereof during a sintering process, and subjected to the sintering process;
• and
• separating the basic metal frame product from the support means.