Heatwork

Heatwork

Heatwork is the combined effect of temperature and time. It is important to several industries:

*Ceramics
*Glass and metal annealing
*Metal heat treating

Pyrometric devices can be used to gauge heat work as they deform or contract due to heatwork to produce temperature equivalents. Within tolerances, firing can be undertaken at lower temperatures for a longer period to achieve comparable results. When the amount of heatwork of two firings is the same, the pieces may look identical, but there may be differences not visible to the eye, such as mechanical strength and microstructure. Heatwork is taught in material science courses, but is not a precise measurement or a valid scientific concept.

External links

* [http://www.ortonceramic.com/resources/reference/cone.chart.F.html Temperature Equivalents, °F] for Pyrometric Cones 022-42
* [http://www.taylortunnicliff.co.uk/rings.htm#use Temperature Equivalents, °F & °C] for Bullers Ring


Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Cone — This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article …   Wikipedia

  • Pyrometric cone — Pyrometric cones are pyrometric devices that are used to gauge heatwork during the firing of ceramic materials. The cones, often used in sets of three as shown in the illustration, are positioned in a kiln with the wares to be fired and provide a …   Wikipedia

  • Pyrometric device — Pyrometric devices gauge heatwork (the combined effect of both time and temperature) when firing materials inside a kiln. It is important to note pyrometric devices do not measure temperature, but can report temperature equivalents. The intention …   Wikipedia

  • Swansong — est le cinquième album studio du groupe de death metal (puisqu à cette période là, le combo a quitté le grind pour le death) britannique Carcass. Comme son titre l indique (chant du cygne), cet album est le dernier du groupe...du moins jusqu à sa …   Wikipédia en Français

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”