Cookies
Potřebujeme váš souhlas k využití jednotlivých dat, aby se vám mimo jiné mohly ukazovat informace týkající se vašich zájmů. Souhlas udělíte kliknutím na tlačítko „OK“.
ASTM D1732-67(1998)
Standard Practices for Preparation of Magnesium Alloy Surfaces for Painting
Automaticky přeložený název:
Standardní postupy pro přípravu hořčíkové slitiny povrchů pro malování
NORMA vydána dne 10.11.1998
Informace o normě:
Označení normy: ASTM D1732-67(1998)
Poznámka: NEPLATNÁ
Datum vydání normy: 10.11.1998
Kód zboží: NS-18205
Počet stran: 8
Přibližná hmotnost: 24 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM D1732-67(1998) :
Keywords:
Magnesium alloys, surface preparation for painting, practice,, Specimen preparation (for testing)-paints/related coatings, magnesium alloys, practice, ICS Number Code 87.020 (Paint coating processes)
Doplňující informace
| 1. Scope |
|
1.1 These practices cover two classes of treatment for preparation of magnesium alloy surfaces for painting, as follows: Class I- Chemical Treatments. Class II- Anodic Treatments. In general, the latter treatments are the more protective of the two classes. Mechanical (abrasive) treatments, solvent cleaning, alkaline solution treatments, and acid pickles not resulting in protective conversion coatings are suitable preliminary treatments only for metal to be exposed under mildly corrosive (indoor) exposures. When a high degree of corrosion protection and paint adhesion are desired, as in many outdoor environments, surface preparation by one of the above conversion-coat classes is necessary. Note 1- Testing of Coatings- Quality control tests of coatings are frequently desirable, and these generally consist of exposures, with or without paint, to salt spray, humidity, or natural environments, with suitable procedures for assessing the degree of breakdown suffered after fixed time intervals. It is recommended that quality control tests of coatings shall be made as far as possible with high-purity material (for example AZ31A alloy), the inherent corrosion rate of which is relatively consistent from batch to batch) and that precautions shall be taken to remove surface contamination before coatings are applied. Such contamination shall be removed by acid pickling to a depth of at least 0.001 in. (25 [mu]m) per side.1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.> (See Note 11.) |
Doporučujeme:
Aktualizace zákonů
Chcete mít jistotu o platnosti užívaných předpisů?
Nabízíme Vám řešení, abyste mohli používat stále platné (aktuální) legislativní předpisy.
Chcete vědět více informací? Podívejte se na tuto stránku.
