Case manufacturing method and case

Abstract

The invention discloses a method for manufacturing a casing and the casing. The casing manufacturing method includes: providing a metal piece, which includes a bottom plate and a side wall, and the bottom plate has an inner surface connected to the side wall; providing a filling piece, which has a connection surface and a first top surface; fixing the filling piece to the metal piece, so that the connection surface Connecting the inner surface and the first top surface to form first and second included angles, the first and second included angles are greater than 90 degrees and less than 180 degrees; provide a film with an ink layer attached, and then perform an in-mold transfer process , so that the plastic is formed on the sidewall and the filler, and the ink layer is attached to the plastic to form an upper appearance surface with the ink layer on the surface of the plastic; and remove at least part of the filler and at least part of the plastic to form a processed surface, processing The surfaces connect the inner surface and the upper exterior surface to form first and second processing angles respectively, and the first and second processing angles are greater than or equal to 90 degrees.

Description

Technical field [0001] The invention relates to a method for manufacturing a casing and a casing. Background technique [0002] Plastic has the characteristics of light weight, easy manufacturing and low cost, and has been widely used in injection molding or thermoplastic molding processes. The manufacturing process is mainly to pour molten plastic into the mold first, and form it into the desired shell shape after pressure and temperature changes. [0003] In the past, in order to make the surface of the plastic show a special pattern or color, spraying was usually used. However, in addition to the machinery and workshops required, this operation also takes time and other paint drying, and must be molded in the injection machine before proceeding. Spraying requires high time and labor costs. Therefore, an In-Mold-Roller (IMR) process has been developed, which is to attach printing ink to the plastic surface by thermal transfer for products that require mass production. Please r...

AI Technical Summary

Problems solved by technology

[0004] However, the disadvantage of the current in-mold transfer printing process is that the film is affected by the shape of the product, the mold design and the parameters of the injection molding conditions during injection molding. The transfer printing process can only be applied to products with a flat surface or a small curvature

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