I cant comment as we do not use thermoset plastics. Can the supplier not help you?
Type: Posts; User: Crabstix; Keyword(s):
I cant comment as we do not use thermoset plastics. Can the supplier not help you?
Have you had any luck with the black specks?
Post some pictures
We had similar issues. We resolved this by not leaving any material in the barrel over night, so in other words, purge out as much PC as possible and then even purge with PP. Its a pain in the ass...
What sort of volumes are we talking?
before making any under cuts - Go up on the cooling, maybe 3 or 4 seconds longer
The picture is not too clear but I think you need to get a special masterbatch mixed up for that specific job.
perhaps blow moulded?
This looks like a custom built/ DIY machine.
This looks like a jetmaster controller (Chensong) ?
Not too much experience with Nylon but it is a hygroscopic material - wont this perhaps cause some of your issues? The longer the part is out the mould the more moisture it absorbs. When we pack our...
Could have some blockage in the nozzle, small piece of steel, just small enough to allow material through but cause plenty of shear heating. I had an issue once where the screw tip broke off and was...
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I have experienced this before - The issue for me was Degradation of material. I lowered TEMPS and also in my case lowered the dose on the Masterbatch.
There is no short cut to leveling a machine. The torque wrench will help with the leverage when adjusting the nuts and the also the ratchet function will help but once the nuts go under strain you...
I think they work on 10V. you could try and shift the potentiometer so that it uses a different position, in other words it shifts the wear marks. It means you will have to recalibrate your...
another obvious one is the voltage coming to the potentiometers ?
We have some old battenfelds, 1985 models. - On occasion I strip and clean those potentiometers ....very carefully. have you swapped the potentiometers with other units?
I use some water soluble cutting fluid in our chiller water. Keeps it clean and kills off any algae growth.
Use a small piece of masking tape on the vent is a quick way to check if venting is your issue.
At a quick glance - The copolymer is tougher than the homopolymer. Up the cooling a fraction?
It could be sucking air in somewhere - check seals/o-rings. I have no experience on Van Dorn - but out Negri Bossi has a block that bolts onto the pump, this block is the main oil pickup from the...
Perhaps the machine was equipped with a robot/Sprue Picker? Perhaps the machine is waiting for a signal from the robot/Sprue picker, before it will close the mould. Just another option to...
Hi Brian,
Yes it is a sub gate. and a brand new mold. I will check it out.
Thank you,
Nicholas
Good Day,
What could be the possible cause of plastic flakes forming on the mold surface? Its a new issue that has develop on a mold this morning. Never experienced this before. Running PP.
...
Hi Nikolay,
I have a manual from a 35T Battenfeld which is UNILOG 4000.(English) I think the 75T is a UNILOG 1000? I also am familiar with these machines as I still have a few that are still...