Elements Screws Segmented Barrel Twin Screw Elements Segmented Barrel

  • Model NO.: Screw Element
  • Customized: Customized
  • Trademark: Zhongyang
  • Specification: ISO9001: 2008 approved
  • HS Code: 84779000
  • Certification: CE, ISO
  • Size: Customize
  • Transport Package: Slushing Oil Coated& Film Wrapped in Wooden Case
  • Origin: Zhejiang of China
Screw elements, Parallel Twin Screw barrel, Element Segmented Barrel, extrusion screw elements, plastic machinery components

Specification:
Parallel twin screw diameter: Φ 18-Φ 177mm

Material:
1)W6Mo5Cr4V2
2)38CrMoAlA(JIS SACM645)
3)42CrMo(AIS14140)
4)S45C

Technics:
1)Heat treatment
2)Nitriding treatment
3)Vacuum quenching

Technical parameter:
D/d ratio: 1.55
Nitrided layer depth: ≥ 0.4mm
Nitrided hardness: 950-1050HV

Warranty and service: 1 year
Focus on quality and service.
Experienced manufacturer, we will be the best choice.
 
Main Base materials 
  		 1.38CrMoAlA  (Nitriding Steel) 
2.  SKD-61   (Special Tool Steel) 
3.  42CrMo (Ultrahigh Strength   Steel) 
4. DC53 ( Cold Work   Die Steel)   
5. W6Mo5Cr4V2 ( High-Speed   Tool   Steel ) 
6. HPT 
  
  
  
Main Alloy Materials 		 1.  Ni-based alloy/Deloro alloy 
2.  Tungsten carbide/Wolfram carbide 
3.  NiCo-based alloy 
4.  Fe-based alloy 
5.  Co-based alloy   
  
  
  
  
Processing Technics 		 1.  Heat treatment 
2.  Quenching 
3.  Nitriding treatment 
4.  Bimetallic alloy welding 
5.  Bimetallic alloy centrifugal casting 
6.  Hard-chrome electroplating 
  
  
  
  
  
Technical parameters 		 Nitriding layer depth  0.5-0.8mm 
Nitrided hardness  HRC56-58 
Nitrided brittleness  Less than grade 1 
Surface roughness  Ra 0.4 
Linearity of screw  0.015mm 
Hard-chrome plating hardness  ≥HRC57 
Chrome-plating layer depth  0.03-0.09mm 
Bimetallic layer depth  3 mm 
Bimetallic layer hardness  HRC58-62 
Above are main technical information, a suitable screw and barrel will be made according to your requirement. 
 

High-pressure Desorption Electrolysis


This series of equipment is oriented to the gold-loaded carbon in the gold cyanide carbon slurry process for gold desorption and electrolysis, and the gold adsorbed on the gold-loaded carbon is produced in the form of high-grade gold mud.

This series of equipment has 3 patented technologies and 5 proprietary technologies. Sodium cyanide is not used in the desorption liquid, which reduces the lean carbon grade below 100g/t. The key technology of this equipment is to ensure the balance of metal content, avoid the phenomenon of equipment "accumulation" and "floating gold", and ensure the stable and stable technical indicators of the equipment. The cost is low, and the content of technological advancement has been broadcast on the Spark Science and Technology column of CCTV in 2000. The technology passed the technical appraisal in 2003 and won the second prize of Science and Technology of the China Gold Association. The overall technical level is domestically leading. In 2006, it was designated as an energy-saving technology for gold production by the National Development and Reform Commission. In 2007, it was designated as an industry standard equipment by the National Development and Reform Commission. The equipment has obtained 3 Chinese patents, the patent numbers are: 01241537.5 01241538.5 200620029209.1

High-pressure Desorption Electrolysis,Gold Desorption Equipment,cyanide leaching,cyanide vat leaching

Changchun Gold Research Institute Co.LTD , https://www.changchunmachine.com