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 14:46:26 GMT
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Viewed:
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5133 times
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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...
> In lugnet.technic, David Schilling writes:
> > A quick search on Google shows that ABS (Acrylonitrile-butadiene-styrene)
> > has a melting point of 103-128°C. Since water boils at 100°C, I don't • have
> > any doubt that you would see some deformation by that point.
>
> There are different grades of ABS, each having different mechanical
> properties. I found an extensive resource on materials at: • http://www.matweb.com
>
> The ABS property data can be found here:
> http://www.matweb.com/abspolymer.htm
>
> I picked 3 grades of ABS that seemed likely to be the type(s) that Lego
> uses, but I'm not sure:
>
> ABS, Molded
> http://www.matweb.com/SpecificMaterial.asp?bassnum=O1100
> max service temp in air: 140 - 223 F
> mold temperature: 109 - 149 F
> processing temperature: 399 - 500 F
>
> ABS, Impact Grade, Molded
> http://www.matweb.com/SpecificMaterial.asp?bassnum=O1103
> max service temp in air: 167 - 365 F
> mold temperature: 111 - 149 F
> processing temperature: 410 - 487 F
>
> ABS, Extruded
> http://www.matweb.com/SpecificMaterial.asp?bassnum=O1106
> max service temp in air: 140 - 212 F
> mold temperature: 136 F
> processing temperature: 392 - 486 F
<SNIP>
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Message has 1 Reply:
 | | Re: Melting Point of ABS (Re: Strengthening Gears)
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| (...) 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 (...) (23 years ago, 5-Mar-02, to lugnet.technic)
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Message is in Reply To:
| | Melting Point of ABS (Re: Strengthening Gears)
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| (...) There are different grades of ABS, each having different mechanical properties. I found an extensive resource on materials at: (URL) ABS property data can be found here: (URL) picked 3 grades of ABS that seemed likely to be the type(s) that (...) (23 years ago, 5-Mar-02, to lugnet.technic)
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