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Steel Bushes Use And Production Process
Mar 28, 2017

1)the steel sleeve production technics process

Steel melting and liquid chemical composition analysis→centrifugal casting →blank steel bush→normalizing→tempering→rough machining→quenching and tempering if required →inner surface finish machining→machine the head surface,taper surface and outer surface on the basic of inner hole→final inspection →marking if need→packing→delivery

 

Q+T method :water quenching and oil cooling ; bell type heat treatment furnace

 

We use advanced melting and casting technology and make sure the chemical composition are exact and steady .use centrifugal casting to produce and promise there is no crack,slag,air hole etc on the outer and inner surface. Adopts mature heating treatment technics to assure the steel spool mechanical properties.use the special tools to machine the steel spool to assure the concentricity ,cylindricity and dynamic balance etc.We produce the steel spool as the client drawing requirement and can reach any requirement on the roughness,allowance and tolerance.


2)the steel bushing popular material (typical case,but not limited on the below ones)


MaterialChemical Composition
35CrMoVMax0.380.70.37≤0.035≤0.035≤0.031.30.30.2≤0.025
Min0.300.40.171.00.20.1


C %Mn %Si %P %S %Ni %Cr %Mo %V %Cu %












MaterialChemical Composition
35CrNiMoMax0.371.00.9≤0.035≤0.0350.90.90.5

Min0.300.70.60.60.40.4



C %Mn %Si %P %S %Ni %Cr %Mo %V %Cu %












MaterialChemical Composition
KCP-12Max0.31.1≤0.6≤0.04≤0.041.50.90.5

Min0.20.91.00.40.3



C %Mn %Si %P %S %Ni %Cr %Mo %V %Cu %



3)steel sleeve properties (typical case ,not limited on the below ones)

35CrMoV (Q+T)

Tensile Strength MpaYield Point MpaElongation %Hardness HB
 ≥1100 ≥950≥8≤241




35CrNiMo(Q+T)


Tensile Strenght MpaYield Point MpaElongation %Hardness HB
≥835≥460≥8260
240




KCP-12(Q+T)


Tensile Strenght MpaYield Point MpaElongation %Hardness HB
≥1080≥835≥8260
240




 

4)steel bushing usual size 


OD

ID

length

Ø665

Ø605

2350

Ø665

Ø605

2200

Ø665

Ø605

1900

Ø670

Ø610

1700

Ø570

Ø505

1900

Ø565

Ø505

1850

Ø565

Ø505

1550

Ø566

Ø502

2400

Ø560

Ø500

1830

Ø555

Ø485

1850

Ø560

Ø500

1500

..........

...........

.............

Max 1100mm


Max 3000



5)after sale service 

  1. we will solve any problem happened during the inspection 

  2. we will delivery the steel sleeves on time ,do the proper packing to avoiding the rusting during the sea transportation,including anti-rust oil painting ,plastic foil packing and wooden case packing 

  3. during the final user production period ,we will replace the new one if any piece go broken due to our product reason


6)product application 

the steel spool(some called steel sleeve ,some called steel bush) is usually used for alimunum foils winding 

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6611ef5et73644334705a&690&690.jpg

IMG_20170315_101306.jpg


if you need this kind of product,welcome to contact with you through email tedmachine@live.com