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The successful application of plastics materials depends on the correct choice of material, and the optimization of its properties to ensure a satisfactory service life，at a price which is competitive. The designer must have a thorough knowledge of materials and…
In die and mold manufacturing, there are different machining operations: cutting (milling, drilling, reaming, etc.), abrasive machining (grinding, polishing, honing, etc.) and EDM. Even water jet cutting is used by die and mold makers. However, metal cutting remains to be…
Vertical Injection Molding Process What distinguishes a micro injection process from a “normal” Vertical Injection Molding process? Except for parts or structure sizes, the process is almost identical. Oen, even the same procedures are applied, both in the actual injection molding…
Location Locality decision as to just where the plastic injection molds plant will be located should be governed by many factors. In the first place, it is well to consider the relation of plant location with that of the sales…
MILLING Milling is the use of several single-point cutting tools grouped around the periphery or face of the cutter or hob. The principles of single-point tool cutting apply to milling. In milling, the tool rotates and the movement of the…
All plastic articles are initially derived from molding compounds. These molding compounds consist of a resin or binder and one or more of the following components： fillers, plasticizers, dyes and pigments, and lubricants. The “resin，” as the principal component, gives…
The term “plastics” has been applied to those synthetic non-metallic materials that can be made sufficiently fluid to be shaped readily by casting, molding, or extruding, and which may be hardened subsequently to preserve the desired shape. Plastics as…
Lettering or numbers on injection molding Lettering or numbers on a molded piece may be either raised or depressed. As a general rule, the raised letters are less expensive due chiefly to the fact that they can be stamped in…
Unless otherwise specified ,a slight draft is ordinarily given to the vertical surfaces of the piece. The reason for this is obvious when consideration is given to the fact that the injection molding plastic piece has to be released with the…
