Aramid Boards
IntroductionUnder an agreement with DuPont, WEIDMANN offers NOMEX® products for the electrical apparatus market. NOMEX® is a synthetic aromatic polyamide polymer that provides high levels of electrical, chemical and mechanical integrity when converted to sheet forms and subsequent specialized parts. The characteristics of this product line, especially its resistance to high temperatures, are widely exploited in order to extend the life of electrical equipment, reduce premature failures, and act as a safeguard in unforeseen electrical stress situations. The useful properties of this material are maintained in long term continuous exposure at 220° C.
Field of application
Typical applications of Aramid boards are in the form of strips, spacers, cylinders, end rings, formed parts, and other components in speciality or elevated temperature applications in power and distribution transformers.
Types
NOMEX® T- 994Type 994 is manufactured at the St. Johnsbury Vermont/USA plant. It is classified as a high density material with a rating of 1.15 g/cm3. The rigidity of this product enhances its mechanical characteristics yielding superior stability under compressive loads. Manufactured thicknesses range from 1.0 to 9.5 mm. Maximum sheet size is 1498 x 355 mm.
NOMEX® T- 993
Type 993 is manufactured at the St. Johnsbury Vermont/USA plant. It is classified as a medium density material with a range of 0.70 to 0.85 g/cm3 which provides excellent forming capabilities. Type T-993 has outstanding oil absorption and superior dielectric properties. Manufactured thicknesses range from 1.0 to 4.0 mm. Maximum sheet size is 6300 x 3200 mm.
NOMEX® T- 992
Type 992 is manufactured at the St. Johnsbury Vermont/USA plant. It is classified as a low density material with a rating of 0.5 g/cm3. The low density allows easy formation of complex shapes and excellent oil absorption. Manufactured thicknesses are 1.6 and 3.2 mm. Maximum sheet size is 6300 x 3200 mm NOMEX® is a registered trademark of E. I. DuPont de Nemours and Company.
