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Author Topic: Welding broken parts  (Read 5403 times)

Offline Rasputin

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Welding broken parts
« on: October 17, 2009, 15:54:46 »
Well this is dedicated to our friends Gordon and Jimbo as they were the ones who guided me in finding the correct solvent.  :wow:

These methods are welding and not gluing as the product will actually dissolve the plastic and bond it to its mate .

It has an odor so use a ventilated location and work quickly . Once the solvent dries it is done welding and only needs 24 hours to be complete solid once again .

For our demo I will be mending a clean break on a winch spool . By "clean break" I am referring to the fact that there are no missing pieces and the fracture fits together perfectly .


« Last Edit: October 17, 2009, 16:25:50 by Rasputin »
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Offline Rasputin

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Re: Welding broken parts
« Reply #1 on: October 17, 2009, 15:57:06 »
I have to find something to hold the weld as it cures and for this a wooden laundry clip fits the bill. On the clip it has a circular area that the spool fits nicely into .

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Offline Rasputin

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Re: Welding broken parts
« Reply #2 on: October 17, 2009, 16:02:45 »
When both parts are in the clip it hold them tight enough for the curing process but does not apply a "squeezing" pressure to the fracture . ( as seen in the light coming through the part )





For this I chose to use some rubber bands to apply some simple light squeezing pressure , or you could use your finger pressure for about 1 minute , but being sure to apply light pressure and keeping the part square



« Last Edit: October 17, 2009, 16:26:56 by Rasputin »
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If you hear the sound of the bell which will tell you that Grigori has been killed, if it was your relations who have wrought my death, then no one in the family will remain alive. They will be killed by the Russian people. :prays:

Offline Rasputin

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Re: Welding broken parts
« Reply #3 on: October 17, 2009, 16:17:46 »
Now lets apply the solvent . Apply sparingly as just a wetting is necessary to dissolve the plastic.



Once the parts are wet place them in your contraption and squeeze immediately . If you chose to use finger pressure hold for a minimum of 1 minute, or if you use the more elaborate system do it fast .

Once it is together and in the contraption let it cure for 24 hours to fully solidify .

Now one day later you should have something to this effect

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If you hear the sound of the bell which will tell you that Grigori has been killed, if it was your relations who have wrought my death, then no one in the family will remain alive. They will be killed by the Russian people. :prays:

Offline Rasputin

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Re: Welding broken parts
« Reply #4 on: October 17, 2009, 16:25:07 »
There may be some ugly areas of plastic that distorted so I use a super fine sand paper to clean it all up . I sand all the burs off and any areas that the solvent was left as a clear mark .



When finished it looks like a workable piece again.



For any parts that are exposed a polishing would be in order but seeing as this area is not seen (covered by winch line) this will do . How to polish
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Offline Jimbo

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Re: Welding broken parts
« Reply #5 on: October 17, 2009, 17:14:44 »
Well done, Rasputin!  :yup:

Best regards,
Jimbo

 
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Offline Rasputin

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Re: Welding broken parts
« Reply #6 on: October 17, 2009, 21:13:18 »
Quote from: Jimbo on October 17, 2009, 17:14:44
Well done, Rasputin!  :yup:

Best regards,
Jimbo

 

Thank you Jimbo, I hope I did the product justice .
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Offline Gepetto

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Re: Welding broken parts
« Reply #7 on: October 18, 2009, 02:45:34 »
Very good explanation of the process Rasputin and the pictures are very helpful, thank you! :wow:



Gepetto
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Offline Rasputin

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Re: Welding broken parts
« Reply #8 on: October 18, 2009, 03:20:53 »
Quote from: Gepetto on October 18, 2009, 02:45:34
Very good explanation of the process Rasputin and the pictures are very helpful, thank you! :wow:



Gepetto

Thank you, I too like when people explain along with picture .

Thanks again for the compliments  :wave:
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Offline Bill Blackhurst

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Re: Welding broken parts
« Reply #9 on: October 18, 2009, 03:25:51 »
Thanks for the how to, Ras  :wow:! I'm going to try to find some of that type of welding glue to keep on hand for emergency purposes  :)9!
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