This standard specifies the technical requirements, test methods, inspection rules, packaging, transportation and storage of boron carbide sealing rings for mechanical seals. This standard applies to hot-pressed boron carbide sealing rings (hereinafter referred to as boron carbide sealing rings). The working conditions are water, oil, organic solvents, strong acids and alkalis, and media with solid particles at a pressure of no more than 6.3MPa and a temperature of -20°C to 200°C.
JB/T 6615-2011 Referenced Document
GB/T 1184-1996 Geometrical tolerancing--Geometrical tolerance for features without individual tolerance indications
GB/T 2828.1-2003 Sampling procedures for inspection by attributes--Part 1: Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection
GB/T 2997 Test method for bulk density,apparent porosity and true porosity of dense shaped refractory products*, 2015-12-10 Update
JB/T 7993 Chemical analysis methods for boron carbide*, 2012-05-24 Update
JB/T 6615-2011 history
2011JB/T 6615-2011 Specification for boron caride rings of mechanical seal