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Category Archive for: 'injection molding'

PC/ABS, mixture of Polycarbonate and acrylonitrile butadiene  ,is a thermoplastic plastics made of polycarbonate and polyacrylonitrile (ABS), which combine the excellent characteristics of the two materials, the injection-ability of ABS and the mechanical properties, impact strength, temperature resistance, ultraviolet (UV) resistance  of PC. 1. Silver Streak Silver streak is the most common problem of PC/ABS …

      PRECISION MACHINING? Precision Machining is a process to remove material from a workpiece during holding close tolerance finishes. The precision machine has many types, including milling, turning and electrical discharge machining.  A precision machine today is generally controlled using a Computer Numerical Controls (CNC). Precision machining contributes parts and pieces from space …

When the mold was tested, sometimes the product had a serious appearance quality problem with radial white marks appeared on the surface. The white marks tended to be serious with the increase of the glass fiber content. This  is  known as ” glass emergence on the surface(also glass fiber rich surface )” which is a …

A system which constant transfers heat from the melt in the mold or heats the mold to the injection temperature is called a temperature control system. Mold temperature refers to the surface temperature of the mold cavity that comes in contact with the product. It directly affects the flow of the melt, the cooling of …

Strategic injection molding and tooling procurement is the process of establishing service supply channels at the lowest total cost, and is a systematic, data analysis-based procurement method. On the one hand, through understanding the injection molding and tooling supplier’s production capacity and market conditions, the company helps the company to strategically introduce competition into the …

Mold Structure 1. Before everything else, it will be significant to completely be aware of the specialized specifications of the plastic mold construction, steel, hardness, accuracy, and so on., which includes the shrinking amount of the resin , Three-dimensional measurement, and producing evaluation. 2. Completely think about the shrinking, flow mark, draw direction, weld line …

Rusting of plastic molds is a normal phenomenon and  caused by special reasons.It is not always due to quality problems of steel products. Melt Decomposition Some plastic raw materials will release volatile gases after being heated, which are corrosive and corrode the mold steel. Therefore, when the injection machine stops , wipe the mold clean …

Storing Molds During downtime, plastic molds are generally removed from the molding press and put into some kind of maintenance. The mold warehouse  usually has s few heavy-duty steel shelves where the molds are positioned onto ,and labeled for identity. Generally, the mold contains particular identity engraved on perhaps 2 adjacent walls so it’s easily …

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