Plastic Injection Molding Site Blog
The Plastic Injection Molding Site Blog is my mini-journal about Injection Molding.
It...
- lets you know when any new postings appear (like brief comments and suggestions on how to improve part quality, productivity and operational efficiencies using current technology and know-how)
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What’s would be the extra material to keep at the matching area of core and cavity inserts
1What’s would be the extra material to keep at the matching area of core and cavity Inserts 2. How to provide spacer lengths interms of ejection length
Injection Molding Training for Thin Wall Packaging Parts
Start making & processing thin wall molds at a profit with injection molding training.
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Support pillars
Is there any specific calculation for using a particular size of support pillars and it's placing?
3 Plate Mold Design For Injection Molding
Learn how to design a 3 plate mold and when to use a 2 plate mold design.
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Setting Hold Time and Hold Pressure to Run an Optimized Process
Learn how to make quality parts without spending money
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3D Rapid Prototyping in Injection Molding
Learn how 3D rapid prototyping benefits the injection molding industry
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Injection Capacity Calculator For Injection Molding Machines
Different plastics have different melt densities which alters the injection capacity of a screw and barrel assembly. Use this injection capacity calculator to find the capacity of your machine.
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Production Calculators For Injection Molding
Need to know how long your next production run will take? Or how much material to order? Production calculators used to find the production rate, time & plastic material requirement.
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Stack Molds Improve Productivity And Reduce Your Costs
If you want to nearly double your production per molding machine, then stack molds might be for you.
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Mold Polishing Tips For Injection Molds
Learn about the different types of finishes in mold polishing
How To Estimate Weight Of An Injection Mold Tool
For those of you who do not have scales here is an easy way to find mold weight.
Calculation For Metric Units (cm)
Measure overall dimensions of the mold.
Refer to above image of mold for length, width & height.
For example:
If Length=80cm Width=90cm Height=45cm
and Weight(kgs)= LengthxWidthxHeightxDensityOfSteel where density is 7.9 grams/cm^3 for tool steel (P20,H13)
then Weight(kgs)= (80x90x45x7.9)/1000= 2,560 kgs
Calculation For Imperial Units (Inches)
Measure overall dimensions of the mold.
Refer to above image of mold for length, width & height.
For example:
If Length=25 inch Width=35 inch Height=20 inch
and Weight(lbs)= LengthxWidthxHeightxDensityOfSteel where density is 0.28 lbs/inch^3 for tool steel (P20,H13)
then Weight(kgs)= (25x35x20x0.28)= 4,900 lbs
All calculations & technical data are for comparison purposes only and are NOT for design or safe working practices. It is derived from sources that we believe to be accurate, but can NOT guarantee its validity. Your specific application should NOT be undertaken without independent evaluation for accuracy.
Mold Flow Analysis Simulation Benefits
Learn how mold flow analysis software can save you time and money in getting quality parts to market on time.
Injection Molding Consulting Will Improve Quality and Productivity.
Specializing in Troubleshooting Thin Wall Molding Problems - Injection Molding Consulting
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Life of a wear plate
How long is the maximum life of a wear plate? Answer: The purpose of a wear plate in an injection mould is to act as a sacrificial component in preference
Gate Type & Mold Steels
Question by Mohamed: How to choose the correct gate type and the correct mold steel? Answer: The type of gate depends upon a number of factors including
Nox-Rust Paper
Question: What problems other than a visual indicator could be caused by using nox-rust paper on the back plates of injection molds? My answer: I wouldn't
A Nucleating Agent Can Improve Productivity Immediately
Learn how a nucleating agent can improve part quality and reduce cycle time with this case study
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Plastic Raw Material For Easier Processing
Learn which plastic raw material will improve cycle time and part quality in injection molding
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