Flashing Plastisol with Quartz

[jvanick]

we're on 208v service here.. (actually hovers around 200 or so)... no problems with long flash times...

[jsheridan]

in the control panel, are you setting the flash dwell under the Flash time or the Quartz time.

[ZooCity]

We're 230v 3ph, high leg delta service here.  I can confirm there are no voltage issues with the flash as I was just in there with the meter testing after the power surge we had last month.  Steve, when I said I upped the circuit I meant the whole circuit was upgraded, not just a breaker swap.   That's a crazy story Alan, I can't imagine dealing with that in a larger plant.  190 sounds real hot to run platens at, even as a last resort to comp for the flash times.  Was that a long time ago?  I hear you can't get a 440v service in my area anymore. 

Someone mentioned humidity, it was about 70˚ and 24% humidity yesterday but weather is manic in our environment and can change many times throughout a day or a print run. 

Investigated the dwell and how much time the flash was actually on in the up position.  We're at about 5-6s in actual tabled up flashing for a job like I described.  The rest of the time the flash is on the table is indexing or lifting/lowering.  We're going to start using the PLC hookup and use the Quartz Flash  settings to get better control of this.

So with these figures on flash time, what are you all setting the preheat and delay at?

[jsheridan]

We're going to start using the PLC hookup and use the Quartz Flash  settings to get better control of this.

So with these figures on flash time, what are you all setting the preheat and delay at?

Yeah, get the PLC!
I just figured you had it with a quartz.. 

preheat at 7 seconds and you can adjust the time in the control panel with quartz time.

[ABuffington]

That's a crazy story Alan, I can't imagine dealing with that in a larger plant.  190 sounds real hot to run platens at, even as a last resort to comp for the flash times.  Was that a long time ago?  I hear you can't get a 440v service in my area anymore.

Everything was a long time ago for me! I wish we had some of the newer flashes of today back then.  My quartz were custom built flashes for an MHM SA 14/12, a tank of a press that maybe hit 400pcs per hour on a good day!  All on or off and no sensors, just a dwell.  We ran hot pallet temps to lower the dwell, but also had to use fans to balance the temp.  Today's base plate inks also fuse a little sooner than ours did back then, hence high pallet temps with pallets that had no rubber covering.  Plus we were running 110 with a thick ink deposit and needed the hot pallets.

Did get a free years rent due to 208v since I specified to realtor 240v which he claimed the building had!  Still I never got 208v production to run as fast as 240v.  About 2/3 the output.

Al

[Steve Harpold]

Hey Zoo,

Thanks for the explanations back. Being new to the board, I am jumping into things without knowing the levels of expertise on this board.  I hope some of my simple concepts will help the newer guys.

Couple more questions, a little more technical if you haven't found a solution yet.

What is wattage of each bulb?
What is the color temperature?
Are these bulbs third party of factory?

[ZooCity]

Hey Zoo,

Thanks for the explanations back. Being new to the board, I am jumping into things without knowing the levels of expertise on this board.  I hope some of my simple concepts will help the newer guys.

Couple more questions, a little more technical if you haven't found a solution yet.

What is wattage of each bulb?
What is the color temperature?
Are these bulbs third party of factory?

Sure thing Steve, I appreciate any and all input and it never hurts to double check things that you think you have on lock. 

This is an M&R Red Chili, they may be able to answer the questions you have.  My guess is all quartz bulbs are made by a third party and some manufacturers may have their own propriety ones made for them but heck, you would know that being a manufacturer.   Sorry, I'm just not overly interested int he color temp/wattage/bulb make as I'm able to do easy, direct comparisons with others with this unit since it is so widely used.