China Forged 5crmov 51crmov Steel Hydraulic Back up Roll

Name: Die Forging 5CrMoV 51crmov steel hydraulic back up roll
Features:
(2) Shaft: 5crmov 51crmov steel back up roll
(3) Bearing: Single&Double Row Deep Groove Ball Bearing.
(4) Seals: Grease retaining inner seal with Multi-stage Labyrinth and Retention Cap with Outboard Rubbing Flinger Seal.
(5) Lubrication: Grease is Lithium soap type grease with Rust Inhibitors.
(6) Welding: Mixed gas shielded arc welding end
(7) Painting: ordinary painting, hot galvanized painting, electric static spraying painting, baked painting.
Certificates: ISO, SGS.PED
Standards : GB/T13792-92, ISO9001:2008, CEMA, JIS.
Application:
Coal industry, power industry, cement industry, harbor, metallurgy.

ItemProcessFacilityInspection itemsStandard
01
Steel material
inspection Chemical composition
(EF+LF+VD)Material standard surfaceIngot inspection
specification Ingot type and weightMaterial standard02
Material
store Division putwarehouse management1
Heat Heat furnaceTemperature/TimeHeating process
specification
Forging production
procedure2
↓ForgingPressReduction ratio,forging
temperature,deformation,
Surface and dimensionsForging process card
Forging procedure3
↓Heat treatmentheat treatment
furnaceheat treatment charts1st heat-treatment card
Forging procedure4
↓Rough
inspection Dimensions, apperance,
MarkInspection specification
Forging procedure5
↓Rough UTUT equipmentSingle defect, concentrated
Defects bottom wave
attenuationUT standard or
customer's technical
requirements6
↓Saw cuttingSaw machineDimensionIQC and forging7
↓rough turningturning-latheDimension,appearance Rough machining
drawing8
↓UTUT equipmentSingle defect, concentrated
defects bottom wave attenuationUT standard or
customer's technical
requirements9
↓Q+T
heat treatmentheat treatment
furnaceheat treatment chartsHeating process
specification10
↓Sampling or machiningmachining toolrough machining drawing
sampling drawingsample machining
drawing11
↓mechanical
property test tensile testing machine/
impact testing machineambient temperature,humidity,
Test temp.Sample dimension,
test methodStandard
technical specification12
↓finish
machiningmachining
toolDimension,appearance finish machining drawing13
↓UTUT equipmentSingle defect, concentrated
Defects bottom wave
attenuationUT standard or
customer's technical
requirements14
↓MTMT equipmentMagnetic particle
indicationTest standard or
Technical requirements15
↓MarkSteel sealmarking contentProduct standard
Technical requirements
Forging process16
↓Final
inspection Appearance, dimension, mark
acceptance inspectionProduct inspection
specification
Product standard
P.O.17Protection/
packageBlasting
Blasting equipmentappearance
coating thicknessProduct standard
Technical requirements