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ASTM D6491-99(2003)
Standard Practice for Evaluation of Aging Resistance of Prestressed Prepainted Metal In a Dry Heat Test
2 стр.
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Разработчик:
Зарубежные/ASTM
ICS:
87.020 Paint coating processes / Процессы производства лакокрасочных покрытий
Сборник (ASTM):
06.02 Paint –– Products and Applications; Protective Coatings; Pipeline Coatings / Красители – Продукты и их применение; Защитные покрытия; Покрытия для трубопровода
Тематика:
Paints & Related Coatings
Описание
Реферат

This practice details the standard procedure for evaluating the resistance of prestressed prepainted metal panels to cracking, or loss of adhesion, or both, after accelerated heat aging by dry heat test. This test method requires the use of gravity or forced air laboratory oven, bench vise, bending dies or test shims, 10x magnifier, and adhesive tape.

Область применения

1.1 This practice can be used to evaluate the resistance of a prestressed prepainted metal panel to cracking, or loss of adhesion, or both, after accelerated heat aging. Most coil coated products are formed and bent into specific shapes to produce a final product. These operations introduce stresses, which may be relieved by cracking of the coating after aging.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Ключевые слова:
aging; coil; cracking; dry heat; fabrication; flexibility; heat aging; prepaint; pick-off; stresses; t-bend