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Standard Specification for Aluminum Diffusion Coating Applied by Pack Cementation Process
Automaticky preložený názov:
Štandardné špecifikácie pre hliníkové Diffusion náteru by Pack procesu cementovania
NORMA vydaná dňa 1.12.2013
Označenie normy: ASTM B875-96(2013)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.12.2013
Kód tovaru: NS-8575
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
aluminizing, corrosion-resistant coatings, diffusion coating, pack cementation, ICS Number Code 25.220.40 (Metallic coatings)
1. Scope | ||||||||||||||
1.1 This specification covers the requirements for aluminum diffusion of metals by the pack cementation method. Pack diffusion employs the chemical vapor deposition of a metal which is subsequently diffused into the surface of a substrate at high temperature. The material to be coated (substrate) is immersed or suspended in a powder containing aluminum (source), a halide salt (activator), and an inert diluent such as alumina (filler). When the mixture is heated, the activator reacts to produce an atmosphere of aluminum halides which transfers aluminum to the substrate for subsequent diffusion. The aluminum-rich surface enhances corrosion, thermal stability, and wear-resistant properties. 1.2 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. |
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2. Referenced Documents | ||||||||||||||
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