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Mandrel Bar with Chromium Plating Used for Mandrel Mill Process

China Mandrel Bar with Chromium Plating Used for Mandrel Mill Process, Find details about China Mandrel Bars, Retained Mandrel from Mandrel Bar with Chromium Plating Used for Mandrel Mill Process

Model NO.
as the drawing
Application Range
Continuous Rolling Mill,Mpm,Fqm,Pqf
Trademark
FANGLE
Transport Package
Woodern Case
Specification
max 20m, Diameter 100mm-500mm
Origin
China
Model NO.
as the drawing
Application Range
Continuous Rolling Mill,Mpm,Fqm,Pqf
Trademark
FANGLE
Transport Package
Woodern Case
Specification
max 20m, Diameter 100mm-500mm
Origin
China
Mandrel bar with chromium plating used for mandrel mill process

Description
Mandrel bar with chromium plating plays a very important role in the mandrel mill process. The Mandrel is the important tool for MPM or FQM during seamless tube production .When rolling seamless tubes, a pre-pierced steel billet is rolled over a mandrel bar by grooved rolls in a stretch reducing rolling process to produce a tube or a tube blank. The mandrel bar determines the shape of the inner tube surface.During production ,it needs 6-7 pieces mandrel to stand by in turns .its surface temperature will reach 700ºC during production and then cooled to 80-120ºC after production ,it requires good quality and long lifetime. Mandrel bars are manufactured with lengths of up to roughly 20 m and production diameters of currently up to a maximum of 500 mm.

Mandrel Bar with Chromium Plating Used for Mandrel Mill Process

Production process:
1) forging
2) rough machining
3) magnetic test
4) heating treatment
5) ultrasonic test
6) finish machining
7) chromium plating
8) thread phosphating
9) package

 Products Parameters
MaterialsAISI H13, X35CrMo V51 ,4CrMoSi V1,28NiCrMoV10 etc.
Diameter80-600mm
Length max to 20,000mm
HardnessMeet the customers' requirements
Surface ProcessingChrome plating
ThreadingAvailable, phosphating
Chrome platingAs per requirement,thickness 0.045-0.065mm
ProcessEBT + LF (VD) + ESR
Property testsMagnetic testing,Ultrasonic testing etc.
Lead timeabout 45 days
Delivery conditionFinished machining
ApplicationMPM, PQF and FQM mills,Assel Mills,Accu-roll mill, Push Bench, Pilger mill,continuous tube mill etc
MarketIndia,Saudi Arab,Russia,Slovenia,Thailand,Vietnam etc.


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Mandrel Bar with Chromium Plating Used for Mandrel Mill Process
 

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