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    MIM Injection Molding

    Looking for start-up help for MIM Injection Molding. We are currently looking a MIM molding for a current customer that we do injection molding for. Looking for any and all information from anyone...
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    Low Pressure Molding

    Looking for someone that has experience with Low Pressure Molding and LPM Machines. In the process of quoting a new project and I have no experience with LPM. Is quoting cycle time the same as with...
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    Multiplas Vertical Injection Machine

    Looking for some feedback, good or bad, about Microplas Vertical Injection Machines. We are looking at purchasing a couple new vertical (100T) molding machines and I would like some feedback from...
  4. Thread: Color Shift

    by tbramel
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    Color Shift

    Looking for some help with a color issue that I have not seen before. We have a product that is molded from KingFa PA6-60GF. We have 6 colors for this part. I am having an issue with Yellow and Pink...
  5. Re: Calculating Percentage of Machine Shot Volume

    I use a calculator that I downloaded from Reiloy USA. I made a modification to it so it is all in grams. I am working on another that is in ccm.
  6. Calculating Percentage of Machine Shot Volume

    Just found out that the company I am working for uses a totally diferent method for calculating the percent of shot volume used.

    There mothod is based on stroke: (srew stoke for part -...
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    ISBM tooling qualification method

    I was wondering if there anyone out there that does ISBM? Wondering what methods are used to qualify the tooling and process. Wondering what scientific methods are used.
  8. Medical Molding Audit for ISO13485 / Injection Machine Software validation

    Are there any medical molders in this group? We are currently going through an audit in our Dominican Republic factory to get our Certification for ISO13485. I have worked in Medical Molding for many...
  9. Galvanized Pipe or Plastic Pipe for Plant water supply?

    I am curious as to what are the thoughts on piping for a plant water supply, Galvanized Pipe or Plastic Pipe. We are getting ready to install a closed looped system in one of factories that currently...
  10. Conditioning of Nylon parts (Zytel PA66 101L)

    We have a project the will run Zytel PA66 101L, the customer is asking to boil the parts at 80c for 8 hours. Has anyone had experience doing this? I know that nylon will stop absorbing moisture once...
  11. Re: Suck back to set check ring, .... is telling what?

    We have Ferromatik/Milacron and Milacron/Elktra machines (650T / 80mm) that we have to use 8mm to 10mm decompress to get a consistent cushion. Running PP. SAN and GPPS.
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    Re: Injection molding with PA

    nemanja,

    Try performing a Tact Temperature study (see attached spreadsheet), this will find the best feed zone temperature which will give you the shortest recovery time. I have used this many...
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    Re: separation of runner from molded parts

    There are many conveyor companies that make part/runner separators. Just google "part and runner separators.

    http://www.mbconveyors.com/eng_n_cpst.asp
  14. Re: Recommend a injection molding tool maker in china

    I would agree with Chrispocess in regards to sending your designs, but not on the quality aspect. the key is to come yourself or have someone come and explain in detail what your standards for the...
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    Percent Change in MFR after molding

    I was wondering if there is a standard for the percent change in the MFR of a given resin after molding?
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    Re: Methods for measuring Platen Parallelism

    Some time ago I had presented the same question to Andy Routsis on his Blog site. Here is his response. This is the method we currently use until we get a Laser System.
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    Re: Methods for measuring Platen Parallelism

    We have looked into Hamer Laser Systems since we have over 260 machines to do annual PM's on. The system is easy to set-up and use. You can check level, check parallelism and platen flatness with the...
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    Re: process stability by Price technique

    Here is a link to the first part of this article. See if this helps to explain.
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    Re: non return valve leaking

    Go to Reiloy's website. They have a lot of good information about screws and barrels. I have attached a file for spec's on screw and barrel wear.
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    Re: Two piece nozzles

    brentb,

    Doing this mostly for ease of change. And yes I am referring to replaceable tip nozzles.
  21. Re: Silicone vs Thermoplastic molding tooling cost comparison?

    geneiusxie,

    I live and work in China (8 years) and have good sources for LSR and thermoplastic injection tooling. Let me know if you would like contact information. I would also be able to over...
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    Two piece nozzles

    We are currently in the process of changing out our one piece nozzles with two piece nozzles. I was wondering if there is a standard tolerance for mismatch between the nozzle body flow channel and...
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    Re: Best Purging Compound

    I have been doing tests recently with various brands. My best results so far have been with Purgex. Base my testing on a Hot Runner Valve Gated tool. The trials are with Black ABS to White ABS in a...
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    Re: Check ring,valve

    Josue,

    You can do a Check Ring Repeatability test based on shot weight. Set up your process to run a decoupled II process and remove the pack and hold time and pressure (I add the time removed to...
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    Processing with Barrier Screws

    The company I am working for is starting to phase out old machines with new Wittmann/Battenfelds. The machines were spec'd with Xaloy MeltPro Screws with the Z-Mixer. We run a lot of PP, ABS and...
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