Subject:
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Re: Melting Point of ABS (Re: Strengthening Gears)
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Newsgroups:
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lugnet.technic
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Date:
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Tue, 5 Mar 2002 14:41:35 GMT
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Viewed:
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5341 times
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In lugnet.technic, Jason S. Mantor writes:
> The first one you cite is probably the right one for LEGO(R) Bricks.
> They're molded, not extruded and I don't believe they are impact grade.
They're clearly not extruded... that's the kind Plastruct(R) uses.
But if they're just plain molded and not impact grade I am hoping they are
from the higher end of the range. The low end mold temp (and I agree with
Thomas Avery's speculations about what it means although my molding
experience is with aluminium) of 109 scares me... it gets that hot in the
south (or in attics) on a regular basis.
HOWEVER, mold temp MAY mean the temperature you should heat the mold to for
best results... I dunno. But I know that the aluminium targeted molds I saw
were heated to 4-500 degrees Farenheit before the molt was introduced.
Regardless, LEGO(r) will discolor if not actually deform well below boiling
temps, I discolored some LEGO by putting it in a dishwasher.
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Message has 3 Replies:
 | | Re: Melting Point of ABS (Re: Strengthening Gears)
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| (...) I measured the temp in my attic last summer and it reached 115 F. Needless to say I don't keep much up there and definitely not my Lego collection! ROSCO had a bad "melting" experience: (URL) think this was caused by prolonged exposure to (...) (23 years ago, 5-Mar-02, to lugnet.technic)
| | | Re: Melting Point of ABS (Re: Strengthening Gears)
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| If you would just put your bricks in the kitchen oven you would make rapid progress with this question. Better yet, obtain a laboratory hot plate with fine temperature control and put a brick between two slides with a weight on top. Do this at (...) (23 years ago, 5-Mar-02, to lugnet.technic)
| | | Re: Melting Point of ABS (Re: Strengthening Gears)
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| (...) My guess would be 109C may be more likely - I'd be surprised if they could mold it at 109F. I'm guessing my bad experience with the heater was well over 109F (they were quite close to it), and they didn't "flow" anywhere near enough that I'd (...) (23 years ago, 5-Mar-02, to lugnet.technic)
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Message is in Reply To:
| | Re: Melting Point of ABS (Re: Strengthening Gears)
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| The first one you cite is probably the right one for LEGO(R) Bricks. They're molded, not extruded and I don't believe they are impact grade. Thomas Avery <thomas.avery@intec-hou.com> wrote in message news:GsI76v.GED@lugnet.com... (...) have (...) (...) (23 years ago, 5-Mar-02, to lugnet.technic)
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