استاندارد ASTM A 503 در خصوص انجام تست آلتراسونیک بر روی Forged CrackingShafts

  استاندارد ASTM A 503 در خصوص انجام تست آلتراسونیک بر روی Forged Cracking Shafts     Scope 1.1 This is an acceptance specification for the ultrasonicinspection of forged steel crankshafts having main bearingjournals or crankpins 4 in. [100 mm] or larger in diameter.1.2 This specification covers the testing equipment requiredand the test procedure to be followed, and it defines the criticaland noncritical areas and limits of acceptance.1.3 This specification is intended to cover both continuousgrain flow (CGF) crankshafts for medium and high speeddiesel engines as well as solid (slab) forged crankshafts forother applications.1.4 The values stated in either inch-pound units or SI(metric) units are to be regarded separately as the standard.Within the text and tables, the SI un ...

استاندارد ASTM A 983 در خصوص Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines

  استاندارد ASTM A 983 در خصوص Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines     Scope 1.1 This specification covers continuous grain flow forgedcarbon and alloy steel crankshafts for medium speed diesel andnatural gas engines.1.2 The steel used in the manufacture of the forgings isrequired to be vacuum degassed.1.3 Provision is made for treatment of designated surfacesof the crankshaft to provide enhanced fatigue strength, or wearresistance, or both.1.4 The values stated in either inch-pound units or SI(metric) units are to be regarded separately as standards.Within the text and tables the SI units are shown in brackets.The values stated in each system are not exact equivalents,therefore each system must be used independe ...