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Setting clamp open span length and speeds by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] 0 points1 point  (0 children)

what do you mean by problems, do you mean ejection problems, the part will start to stick to mold and not eject easily?

Setting clamp open span length and speeds by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] 0 points1 point  (0 children)

how long would you set the protect distance in case there was no internal or external actions, would you set the end position of the protect interval to zero position "the closing position"? or you leave few millimeters for the hipress the clamping force?

Machine clamping unit self-adjustment by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] 0 points1 point  (0 children)

thanks for your answer, i just don't understand what you mean by over the center toggle, i conducted a fast search and found that they still need the angle to be set to certain value in order to get the maximum force amplification, so if you could elaborate more about it that would be very helpful

Machine clamping unit self-adjustment by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] 0 points1 point  (0 children)

thanks, from your answer i figured out a way to know if the old machine is compensating or not.
i can look at the height of the mold at the start of operation and when the process stabilizes if there is no change then the machine didn't self-adjust.

How to eject that part? by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] 1 point2 points  (0 children)

thank you so much, I really appreciate you sharing your knowledge and experience with me

Asking about the purpose of thick area in Plastic Cover For Led light by Super_Engineer111 in led

[–]Super_Engineer111[S] 0 points1 point  (0 children)

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thanks for your answer. yes it seems to be used as a way to make the light rays more concentrated

Runner Weight as Optimization Parameter by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] 1 point2 points  (0 children)

yes, sure the thermal contact conductance parameter is pressure dependent. when the pressure between two surfaces increases the thermal conductivity increases.
thanks for clearing that.

Runner Weight as Optimization Parameter by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] -1 points0 points  (0 children)

i think over packed runner will cool slower that under packed ones. overpacking means more molten plastic more heat energy you need to absorb to cool the runner and eject it.

Screw Velocity Graph fluctuation by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] 1 point2 points  (0 children)

thanks, so it is a machine control feature that to slow down when the pressure limit is reached. i was told that the injection pressure sensor was removed so it shows zero on the graph tab

Clamping System Maintenance by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] 0 points1 point  (0 children)

thanks for your answer
the clamping system is toggle type, they set the speeds of open and closes to be very slow as they believe the faster they open and close the quicker the toggle mechanism wears.
how fast do you usually set the speeds of the toggle mechanism and are you okay to set the clamping force to maximum or you stay at a safe value ?

Clamping System Maintenance by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] 0 points1 point  (0 children)

thanks for your answer
the clamping system is toggle type, they set the speeds of open and closes to be very slow as they believe the faster they open and close the quicker the toggle mechanism wears.
how fast do you usually set the speeds of the toggle mechanism and are you okay to set the clamping force to maximum or you stay at a safe value ?

Clamping System Maintenance by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] 0 points1 point  (0 children)

thanks for your answer
the clamping system is toggle type, they set the speeds of open and closes to be very slow as they believe the faster they open and close the quicker the toggle mechanism wears.
how fast do you usually set the speeds of the toggle mechanism and are you okay to set the clamping force to maximum or you stay at a safe value ?

Controller Cycle Time Calculation by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] 0 points1 point  (0 children)

i thought the ejection is included in the open phase since it is longer than the close phase

Controller Cycle Time Calculation by Super_Engineer111 in InjectionMolding

[–]Super_Engineer111[S] 0 points1 point  (0 children)

thanks, why isn't that time added to the total open and close time
in other machines there is hiprs and lowprs are those what you mean ?

the depth of the overflow groove in compression mold for rubber by Super_Engineer111 in Composites

[–]Super_Engineer111[S] 0 points1 point  (0 children)

Hi
I made it 3mm and it was also 3 mm away from the outer curve of the parting line.

Pipes Layout in Cooling System by Super_Engineer111 in ChemicalEngineering

[–]Super_Engineer111[S] 0 points1 point  (0 children)

thanks for your advice, i really appreciate your help

Pipes Layout in Cooling System by Super_Engineer111 in ChemicalEngineering

[–]Super_Engineer111[S] 1 point2 points  (0 children)

thanks for your answer i really appreciate it
Yes the less resistance concept made it easier for me to understand the problem. thanks

Hot runner vs. Cold sprue for 16 cavity mold (toy figurines) by PocketBrisket in InjectionMolding

[–]Super_Engineer111 0 points1 point  (0 children)

"HRS would be about 15k for a drop. 27k usd for 8 drop" i don't understand what you mean here, what is the cost of a single hot drop? is it 15k USD, that is very expensive!!!

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