plastic mold

plastic mold

  • Joined: July 13, 2012
  • Articles: 347

standard parts in mold tools

While the use of standard parts in mold tools has many advantages, it can take a long time to incorporate them in to mold tool designs as a. great deal of information has to be looked up in the catalogues.…

mold components

Standard mold parts are used extensively in almost all modern injection mold tools. Only a few special-purpose tools are constructed from Scratch, without taking advantage of the standard components available. Even these tools would have a small number of standard…

Gating Design Rules

The gate design should deliver a rapid, uniform and preferably Linidircctional mold-filling pattern,the gate location should allow the air present in the cavity to escape during the injection phase. Failure to vent the air will result in short shots or…

Runner System Design Rules

Runners must be designed to fill the cavity rapidly, routine design must provide for easily ejection and easy removal (de-gating) from the molded part. For multi cavity system, balanced runner layout is practical for the best uniformity and part quality.…

Runner Cross-Section and Layout

The purpose of the runner is to transport the melt from the sprue to the gates. There are three basic parameters for runner geometry: The cross-sectional shape The diameter The cavity layout The most efficient runner section is the full…

Cold Slug Well

Cold Slug Well-This is designed to trap the cooler advancing front of the melt、thus permitting hotter melt to reach the cavities and gates. It usually has a snatch or pull pin or sucker pin underneath it to positively pull the…

Mould Maintenance

All mold tools are expensive and easily prone to damage and corrosion if they are not maintained properly. In most injection molding shops, the mold storage area often houses a considerable capital investment, often running into millions of pounds. Before…