GB/T 37682-2019: Translated English of Chinese Standard. (GBT 37682-2019, GB/T37682-2019, GBT37682-2019): Large exposed gear steel castings - Technical specification
https://www.chinesestandard.net, Aug 31, 2019 - Technology & Engineering - 13 pages
This Standard specifies the ordering requirements, manufacturing process, technical requirements, inspection rules and test methods, acceptance and quality certification, identification and packaging of large exposed gear steel castings. This Standard applies to the ordering, manufacture, and inspection of large gear steel castings in the form of exposed drive, which are cast using the sand mold.
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Inspection rules and test methods
Identification surface protection packaging storage and transportation
Appendix A Informative Defect treatment method for large exposed gear steel castings after finishing
accordance agreed allowed analysis sampling basis for acceptance cast in multiple cast steel designation casting surface chemical composition designation shall comply determined dimensional tolerances hardness test heat treated heat treatment height width)>800 identification impact samples inspection layer less levels Lot number lower machined surface magnetic particle testing major defect Manufacturing mass tolerances Material designation mechanical properties meet the requirements melting heat Non-destructive testing Number and position ordering agreement packaging penetrant testing performed after finishing performed after roughing points Workpiece height Preparation prime line process supplement provisions of GB/T purchaser quality certification Quenching and tempering record Reheat remove repair welding requirements of GB/T requirements of Table residual element content result of mechanical rules Shape specified average specified in 6.7 surface is performed surface protection surface roughness Ra tempering Normalizing+tempering Quenching test bar test is carried test lug Test methods test results testing of castings ultrasonic testing Unless otherwise specified