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Retained Mandrel Bar Used for Mandrel Mill Process

China Retained Mandrel Bar Used for Mandrel Mill Process, Find details about China Mandrel Bars, Retained Mandrel from Retained Mandrel Bar 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 for multi-stand plug mill tool

Description
MPM & PQF mandrel bars are also named retained mandrels.Mandrel bars are the key parts during the production of Seamless Tubes and Pipes. Once the billet has been pierced, the Mandrel Bar supports the tube  internally during elongation and wall thickness reduction.
The Mandrel bar is the important tool for multi-stand pipe mill process,which is also called Mannesmann plug mill process or multi-stand plug mill.In the Mandrel Mill Process, a solid round (billet) is used. It is heated in a rotary hearth heating furnace and then pierced by a piercer. The pierced billet or hollow shell is rolled by a mandrel mill to reduce the outside diameter and wall thickness which forms a multiple length mother tube. The mother tube is reheated and further reduced to specified dimensions by the stretch reducer. The tube is then cooled, cut, straightened and subjected to finishing and inspection processes befor shipment.


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

Production parameters
 
MaterialsAISI H13, X35CrMo V51 ,4CrMoSi V1 etc.
Diameter80-600mm
Length max to 20,000mm
HardnessMeet the customers' requirements
Surface ProcessingChrome plating
ApplicationMPM, PQF and FQM mills,Assel Mills,Accu-roll mill, Push Bench, Pilger mill etc
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 conditionFinish machining
MarketIndia,Saudi Arab,Russia,Slovenia,Thailand,Vietnam etc.
 
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Retained Mandrel Bar Used for Mandrel Mill Process
 
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Retained Mandrel Bar Used for Mandrel Mill Process

Package &Delivery
Retained Mandrel Bar Used for Mandrel Mill Process
Customer Visit
Retained Mandrel Bar Used for Mandrel Mill Process






 

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