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  • GUANGZHOU PENGFA BIOMASS ENERGY EQUIPMENT CO.,LTD

  • Mr.Rick Yao
  • Email: trade@pengfamill.com
  • Tel: 86-20-22628026
  • Mob: 13763386005
  • Donghao Road #10, Dagang Town, Panyu District, Guangzhou City, Guangdong, China.
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Alloy Steel Ring-die

Alloy Steel Ring-die


Item Name:Alloy-Steel Ring-die

      

[Technical Specification]

Material Type: Alloy Steel 20CrNiMo(SAE-8620) or 20CrMnTi;  Grain Size (ASTM E112):6-8 ASTM;

US Test Required: according to SEP1921 PG3, D, d (12/84);   Inspection: EN10204/3.1(CA,BHN,US)


[Chemical Specification]

DIN

Stoff nr

C%

Mn%

P%

S%

Si%

Ni%

Cr%

Mo%

Ti%

SAE-8620

1.6523

0.18- 0.23

0.7- 0.9

<0.04

<0.04

0.2-0.35

0.4-0.7

0.4-0.6

0.15-0.25

 

20CrMnTi

 

0.17-0.23

0.8-1.1

<0.035

<0.035

0.17-0.37

<0.30

1.0-1.3

<0.25

0.04-0.10

 

Machining Procedure on ring-die by our equipment:

(1)                   Machine the Pellet Die (Forged Unit) By Lathe;

(2)                   Set The Position Holes by automatic Drilling machine of ring-die;

(3)                   Step drilling can be done(through hole and relief hole) by automatic Drilling machine of ring-die;

(4)                   Countersinking / Relief (减压孔)/ Flange Hole By Countersinking Machine of Ring-die;

(5)                   Heat Treatment by Carburizing and Quenching;

(6)                   Grinding working dimension by Grinding machine, Machine other dimension by Lathe;

(7)                   Polish by hand electric drill;

(8)                   Linear - cutting (Wire-cutting) the groove; 

Range of application: These ring- dies will be done strictly according to the customer’s drawing or requirement. They can be used as all kinds of feed pellet mill or wood pellet mill.



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