Plastics Volume/Mass Conversion to cubic centimeters

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Plastics Volume/Mass Conversion to cubic centimeters

Postby MrMudd » Sun Jan 29, 2006 1:18 am

I am having some difficulty in converting a solid model- Injected parts volume-mass to the amount of plastic cubic centimeters used.


Here is a sample

PBT Polybutylene-teraphthalate
Specific Gravity 1.34
weight in lbs per Cu foot 83.7
weight in lbs per Cu Yard 2258.6
weight Kgs per Cu meter 1340

I know my molded plastic peice will occupy:

volume area of 4.988 in.3
Mass of 49.882 Kg
surface area 5.7024 in.2


What I would like to know based of the info i have from my pocket reference is how much cubic centimeters will be used so i can correctly know my Price of material.
Glenn Davis
General Manager
Engineering-Machining
www.lacefieldplastics.com
MrMudd
 
Posts: 2
Joined: Sun Jan 29, 2006 1:09 am
Location: Utah

Postby MrMudd » Sun Jan 29, 2006 2:11 am

volume area of 4.988 in.3

4.988 in3 x 16.3871 = 81.738 cm3

81.738cm3 x 1.34 specific gravity = 109.53

109.53 x 110% = 230.01 Grams

230 Grams / 28 = 8.214 Oz

Ok Much better....
Glenn Davis
General Manager
Engineering-Machining
www.lacefieldplastics.com
MrMudd
 
Posts: 2
Joined: Sun Jan 29, 2006 1:09 am
Location: Utah


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