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Wuxi Jinlifang Seiko Technology Co., Ltd.
Piston Rod;Precision Shafts;Steel Hollow Shaft
 
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Anti - corrosion 45# Steel Piston Rod With Mirror Polishing For Gas & Oil Cylinders

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Title: Anti - corrosion 45# Steel Piston Rod With Mirror Polishing For Gas & Oil Cylinders 
Brand: -
Model: -
Unit price: Negotiable
MOQ: -0 -
Quantity: Negotiable
Delivery date: Since the payment date Days delivery

Contact: Wang (Ms.)    
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45# steel Hard Chrome Plated Piston Rod with mirror polishing for gas & oil cylinders

 

 

The surface of the products are grand with a special way and electroplated with hard chrome. Finished with mirror polishing, the product is endurable and anti-corrosion, can apply to various gas & oil cylinders, piston rods, packing, carpentry, textile,  printing and dyeing machines, die casting machines, injection molding machines, other mechanical guide rods and carrier rods, etc.

 

1 material :  top 45# steel

2 outer diameter tolerance : f7-f8 ( with other tolerances available)

3 surface roughness : Ra0.2-0.4

4 hard chrome thickness :  0.015-0.025mm

5 surface hardness : HV700-1150

6 straightness : 0.05-0.10m/m

7 standard length : 1-6 m

 

Note : those whose surface need to be high echoed with depth 1-3 mm and thickness HRC4552 can be customized. The thickness of plated chrome are vary according to applications : gas hydraulic = =0.02 mm , oil hydraulic is above 0.02 mm.

 

Process specification:

Chromic anhydride : 250-300g/l 

Best value : 280

Sulphuric acid : 1.8-2.5g/l

Trivalent chromium : 2.5-5g/l

Additive A(DW-032A):10-20ml/l  

Additive B(DW-032B):10g/l 

Fluorine free anti-fog agent C( DW-026): 0.05~0.15ml/l

Temperature : 45-59° note that the temperature is not too high

Current density : 35-90A/dm2

Current efficiency : 30-35

KAF consumption  :  A  50ml/l  B 0.25- 0.5g/l  Fluorine free anti-fog agent C 0.01ml/l 

100kg Chromic anhydride need to be fixed with  A  3-5kg, B 0.5- 1kg  C100ml


Anti - corrosion 45# Steel Piston Rod With Mirror Polishing For Gas & Oil Cylinders
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