PIM Plastic Molding Company

Month: March 2014

  • Cooling

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    Kenny
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    [ezcol_1half] Once the hot polyester resin goes into the mold it ought to be cooled quickly. Cooling permits the molded component which will keep its preferred pattern when it’s demolded out of the mold. When cooling isn’t offered ,the hot polyester resin may normally heat up the mold steel to a level ,so component cooling…

  • Mold Heating and Cooling

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      [ezcol_1half] The course may discuss the fundamentals of mold heating and cooling about cold runner system. You may discover choice, utility, components and prevalent troubles connected with heating and cooling. The next topics are introduced in a practical way.   The handling of mold temperature by ways to heat and cool the mold cavity…

  • vent

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    [ezcol_1half] As plastic material is injected to a cavity, it ought to expel the air which can be previously there. Except the air is eliminated rapidly many things might appear. Air may get caught and after that compacted raising its temperature sufficient to allow them to result in burn markings or possibly a gap. Absence…

  • gate

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      [ezcol_1half] Gate A gate stands out as the link between the runner  and the formed component. It ought to allow sufficient melt plastic movement which can occupy the mold cavity, additionally extra resin to compensate component shrinking and solidfying. The gate is an extremely important section of the runner system. The gate model, position,…

  • Overview of Runners, Gates and Vents

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    Kenny
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    [ezcol_1half] Runner and Gate Design The article will discuss the fundamental kinds and operations of runners, gates(entrances) and air vents during injection molding. Additionally, you will obtain choice, utility, and customary difficulties connected with runners, entrances, and air vents. Injection Molding Cycle This sketching describes a reciprocating screw of press. Polyester resin within the hopper…

  • Glossary of Terms (3)

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    Kenny
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    [ezcol_1half] SPRUE PULLER PIN Pin located directly under the opening of the sprue. Used to pull the molded sprue out of the bushing after a shot has been made. SPRUE BUSHING RETAINER RING See LOCATING RING STONING The process of refining all surfaces of the cavity or core with manufactured stones. SUCKER PINS See SPRUE…

  • Glossary of Terms (2)

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    Kenny
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    [ezcol_1half] FLOW LINES See SPLAY FREEZE TIME The time it takes to set the molded plastic resin for a variety of functions. For example, freeze time describes the time it takes to set the molded resin, in order for ejection to occur. FRONT CAVITY PLATE See “A” PLATE GATE An opening at the end of…

  • Glossary of Terms

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    Kenny
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    [ezcol_1half] ABRASION RESISTANCE The ability to resist localized surface damage from contact with other material in use, such as gouging, grinding, scratching or erosion. ANSI (American National Standards Institute) A privately funded, voluntary membership organization that identifies industrial and public needs for national consensus standards, and coordinates development of such standards. Many ANSI standards relate…

  • Design of Runner and Gate

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    The runner system is the passage way for plastic material to move from the sprue to the entrance. The runner technique is extremely important with respect to filling cavities. In the event the runners are extremely small in size the mold cavities will not likely fill properly. If the runners are too big, then the…

  • Mold Base Technology

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    Kenny
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    Mold Base Technology [ezcol_1half]   Cavity Plate, A Plate This plate holds the cavity in the mold. Its thickness is normally decided by the “depth” of the part. The runner system and gating are sometimes machined (half) in the surface of the plate. This surface is also the parting line surface and “shut off” (sealing)…