#TIVAR #thermalexpansion #linings
Thermal expansion is the increase in the volume of material as due to an increase in temperature, whereas thermal contraction is the decrease in the volume of material due to reduction in temperature. This is a critical item for liners because if the temperature increases is not accounted for in the installation. The liner could fail due to buckling or failure of a fastener.
As a brief example,
- Install temperature: 55 F
- Application temperature: 95 F
- Material: TIVAR 1000
- Length of piece: 60″
In this case, we can assume that the temperature will start to increase from 55 F to 95 F, which is a change of 40 degrees. It is possible to calculate the expansion using the thermal expansion constant in the product data sheets or use tables to determine the amount of expansion for this application. The estimated expansion is approximately 0.25″ over the 60 inches. Please note that you will get a slightly different answer if you use the tables versus the product data sheet. The product data sheets tend to report an average coefficient which will give a conservative number over the applicable range.
Lawrence Industries, Inc. specializes in the design, fabrication and installation of TIVAR® 88 and TIVAR UHMW-PE materials. We can provide assistance with your lining questions. Feel free to reach out to sales@lawrenceindustriesnow.com or 260-432-9693
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