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Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Squeegee blades

Curtis T.

#8439

Squeegee blades | 23 November, 1999

Does any one have any experience with the transition automation permalex squeegee blade (I called them and they couldn't tell me much), or any blade other than the typical nickle coated spring steel. Part of our production has been moved (by our customer) to a new epoxy paste and it is sticking to everything in sight including the blades. We currently are using the standard MPM nickle plated spring steel blades and the paste roll (even a large one) is sticking to it. This makes it hard to get a good print some times. I was wondering if anyone knew of a metal blade that would help. The other family of pastes we use from another supplier does not have this problem. Thanks Curtis T.

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#8440

Re: Squeegee blades:TITANO | 24 November, 1999

Dear Mr. Curtis,

We have alternative solution for your problem, if epoxy paste is for bonding purpose. Please visit our Website to get more details as follows.

http://www.squeegee.co.kr

Best regards,

J.B. Hyun

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Boca

#8441

Re: Squeegee blades | 24 November, 1999

We have been using TA permalex blades for year, they work great! They will even work with you on custom designed blades to fit custom blade holders.

If you're having trouble with solder paste sticking to the blades contact the vendor for some solutions. Our's tends to stick to the blades as it dries out, the solution it to change paste in the printer.

Boca

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John Thorup

#8442

Re: Squeegee blades | 24 November, 1999

The TA blades work very well. I understand that they are now available with the permalex coating over the whole blade rather than just the edge for no cost up. This is advertised to reduce sticking. As Boca says, try the epoxy vendor. Maybe the product is not correct for the application. Good luck. John Thorup

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Curtis T.

#8443

Re: Squeegee blades | 29 November, 1999

Are these blades coated with something like PTFE (teflon)? If so does the coating flake off over time. Incidently I just got a pice quote and they are 4.5X that of our standard MPM nickel plated spring steel, so I wanted to make sure they would last for a while. We run 24-7-365 so I dont want to be changeing the blades on 15 printers every couple of months. Thanks for the help. Curtis T.

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Boca

#8444

Re: Squeegee blades | 2 December, 1999

Curtis,

They have a 'permalex' coating bonded to the metal. We see no signs of flaking. They are pricey but they do work, we had metal blades from the OEM, they were absolute trash (not MPM). We run 16-6 and they last at least 4 to six months in our operation.

Just a thought. If you're running 24-7-365 and if these improved your printing process, would changing them every 2 months really be so bad?

Suggest you get a set and run them on a line, watch for changes in defect rates or process measurements to prove they are / are not worth the $.

Boca

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#8445

Re: Squeegee blades | 2 December, 1999

I'll have to second Boca. I have used the TA blades exclusively for three years and have never seen the coating come off. I think you'll be able to make a case for your bean counters. John Thorup

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