Search:

Type: Posts; User: nemanja; Keyword(s):

Page 1 of 5 1 2 3 4

Search: Search took 0.00 seconds.

  1. Replies
    4
    Views
    4,572

    Re: Level of Material

    Can you post picture of dehumidifyer? There is few types that i work with.
  2. Replies
    4
    Views
    4,572

    Re: Level of Material

    Hi,

    What type of dehumidifier you use?
    Dehumidifiers with automatic loading have sensor. :)

    BR
  3. Replies
    2
    Views
    3,873

    Re: Suitable screw type

    Hi,

    Im using cylinder made by ARBURG with some sort of coating that is suitable for abrasive and agresive materials. For 8 years i didnt had problem with cylinders. Im working with PA6GF30,...
  4. Replies
    5
    Views
    7,582

    Re: drying parameters for technomelt PA 638

    Hi,

    On Technomelt 678 im using 30C for 4h, and that solved this problem for me. On datasheet is saying that drying is not required but without, surface of parts are like moon surface because of...
  5. Replies
    3
    Views
    5,268

    Re: Injection Profile Engel Emotion 310

    Hello,

    Did you do fill study?
    How much part is filled in point when preassure goes up?

    What are yours speed profies? Do you have one or more injection speeds?

    Regards.
  6. Re: “Splay” issue on PA66 GF30% with UV stabiliser.

    You can try to reduce residence time in the material hopper or increase temperature at the material feed (flange). One more option is to increase tool temperature (im working with PA 66 but with fire...
  7. Re: “Splay” issue on PA66 GF30% with UV stabiliser.

    Hi,

    What is dwell time, tool temperature, do you have condensation or tool leaking....?
    "Steam" can be from stabilising component also. How many % of cylinder volume you inject and what is cycle...
  8. Replies
    4
    Views
    5,458

    Re: Insert molding metal terminals

    For sealing terminals did you considered silicone seals?
    Something similar we using on connectors that we overmold with TPE.
    If tool desined properly and you dont use some exsesive injection...
  9. Replies
    3
    Views
    4,352

    Re: Nylon 6 Brittle parts

    We are using climatic chamber where we put parts after molding on 24h, 90% humidity and 55C. After process they are more flexible and harder to brake.
    So far we have good resaults with this metod.
  10. Replies
    2
    Views
    6,652

    Re: Hot Runner/Tolerance Issues

    What you use for cleaning of hot-runner? Similar i have similar problem with PA6.6 GF30, solved by proper tool maintanace with compound for cleaning and after production inside of hot-runner is PP....
  11. Replies
    5
    Views
    8,539

    Re: Material Drooling

    Hi,

    If you are able try 6h pre-drying on higer temperature. Depends from material it is posible that needed longer time to dry (had this case in my production).
    I assume temperature is in...
  12. Replies
    5
    Views
    8,539

    Re: Material Drooling

    Hi,

    Few questions:
    -Is material dry?
    -Value of back preassure?
    -How big decompression is and is it before or after dosing?
    -Temperature on nozzle tip (real vaue)?
    -Do you have shut off nozzle...
  13. Thread: MoldTrax

    by nemanja
    Replies
    0
    Views
    2,456

    MoldTrax

    Hello all,

    Is anyone have any experience with software MoldTrax? From presentation is good investment for any company that have tools, but on other hand, thats just comercial, and is hard to...
  14. Replies
    2
    Views
    3,519

    Re: Fire resistant resin

    Hi,

    Do you know what UL 94 V? grade need to have?

    HB: slow burning on a horizontal specimen; burning rate < 76 mm/min for thickness < 3 mm or burning stops before 100 mm
    V-2: burning stops...
  15. Replies
    3
    Views
    2,771

    Re: Adhesion on overmolded PCB with PA 678

    I get as material (semi-product) PCB and i (try) to make it waterproof (pucture below).
    531
    533

    This is before and after overmold. As you can see im also limited with preassure, speed and...
  16. Replies
    3
    Views
    2,771

    Adhesion on overmolded PCB with PA 678

    Hi all,

    I have big problem during overmolding of some PCB. Main function of molded part is to make part waterproof.
    When molding is finished, resaults are good, but after day or so there is...
  17. Thread: Sanity Check

    by nemanja
    Replies
    5
    Views
    3,429

    Re: Sanity Check

    Hi,

    If you made price by customers parameters ofcourse they will put smaller cycle time.
    Dont know how big part is but i have somwhere 40-60s cooling.
    One of idea is to try longer holding...
  18. Replies
    4
    Views
    3,479

    Re: Enhancing flow properties of resin

    Is tool venting OK? Making some additional scratches may hellp you (0,05mm).
  19. Re: Choosing plastic for adhering with EN8 metal part

    Hello,

    Can you be more specific, like what is exact purpoce of plastic?
    Do you need to be waterproof, electrical insulation, damage protection, etc...
    Usually adhesive problems we solve with...
  20. Thread: Back Pressure

    by nemanja
    Replies
    8
    Views
    41,519

    Re: Back Pressure

    Usually there is recommended values for back preassure in material datasheet. Is most of the time OK value.
  21. Replies
    4
    Views
    741

    Re: mold change check list

    Im guessing that will depends from mold to mold... Not all molds have same cooling lines, hot-runner connections, program parameters.....
    I tried to standardise all this in curent company where i...
  22. Replies
    4
    Views
    741

    Re: mold change check list

    Hello,

    Usualy when needed i make "working instruction" for tools with pictures, drawings and instructions for correct mounting and adjusting tool on machine and chosing of program, also marking of...
  23. Replies
    9
    Views
    5,738

    Re: Problem during TPE processing

    Hi,
    Do you use virgin material? Is it possible that you can mix materials? Is drying necessary and if, how stable process is.
    I didnt work with this material, but i had similar problems with TPE...
  24. Replies
    7
    Views
    5,077

    Re: Overmold Possibility

    Hi,

    Is surface important? We do some sort of "holders" that we put on metal plates. They put metal plates in wanted position, but on other hand they are visible on surface. Holders are molded from...
  25. Replies
    1
    Views
    5,311

    Re: Chiller systems

    Hi,

    In what country is your factory?

    Regards,
Results 1 to 25 of 107
Page 1 of 5 1 2 3 4