7. Plastics industry
Electric resistance ovens are used in particular for drying, curing and polymerizing coatings on a wide variety of substrates – textiles, paper, wood, plastics, etc. – or for drying products themselves.
In plastics processing industries, certain products (granules, pellets, blocks, sheets, foils, etc.) are heated prior to processing in forced convection ovens (discontinuous or continuous), which can also be used for polymerization and stabilization of a wide range of products (temperatures between 120 and 250 ˚C, or even higher for special products). Other equipment is used for thermoforming (heated platens), as well as for welding and bending plastics (hot-air generators), preheating sheets before forming (hot-air ovens).
A large number of continuous or discontinuous forced convection electric ovens are used to heat heat shrinkable plastic...
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Bibliography
Heating element suppliers
ACIM JOUANIN S.A. [email protected]
CERHEC [email protected]
KANTHAL http://www.kanthal.com
RESCAL http://www.rescal.com
...Regulations
The Union technique de l'électricité (UTE) provides readers with collections of French, foreign and international standards, as well as reproductions of regulatory texts: both can also be purchased from the Association française de normalisation (AFNOR). In each country, the national standardization service can provide the same services.
Texts
- Textes officiels relatifs aux conditions techniques...
Standardization
- Installations électriques à haute tension : Règles - NF C 13-200 - 12-89
- High-voltage electrical installations – practical guide – determining conductor cross-sections and selecting protective devices - NF C 13-205 - 7-94
- Installations de branchement à basse tension : Règles - NF C 14-100 - 2-98
- Installations électriques à basse tension : Règles - NF C 15-100 - 12-02
- Installations électriques...
Electrical heating equipment market
2005 was marked by a sharp drop in the power ordered for thermal equipment, surpassing the increases of the previous two years: +6% between 2002 and 2003, +3% between 2003 and 2004, compared with -24% between 2004 and 2005.
Natural gas, which had grown significantly last year, with a 13-point gain in market share between 2004 and 2005, suffered the sharpest decline: -35% between...
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