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Twin Parallel Screw for Extruding Barrel Foam Material

  • Model NO.: Customized
  • Screw Barrel: Twin Parallel Screw for Extruding Barrel Foam
  • Nitrided Hardness: 900-1000hv
  • Linearity of Screw: 0.015mm
  • Specification: ISO9001: 2008
  • HS Code: 84779000
  • Screw: Twin-Screw
  • Nitrided Layer Depth: 0.5-0.8mm
  • Surface Roughness: Ra0.4
  • Trademark: Zhongyang
  • Origin: Zhejiang of China
Twin parallel screw for extruding barrel foam material

Specification:
Diameter: Φ 45mm-Φ 200mm
L/D ratio: 16-35

Technical Information

Base Materials:
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)4Cr5MoSi V1 (JIS SKD-61)
4)9Cr18MOV
5)HPT

Bimetallic alloy materials:
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide

Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
Bimetallic alloy centrifugal casting

Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 900-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: >=950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm

Warranty and service: 1 year

Our advantages:
1)Excellent raw materials
2)Good customer service
3)Rapid delivery
4)Reasonable price
5)Production quickly

Experienced manufacture, we will be the best choice.

Downhole motor is composed of five assemblies: by-pass valve, motor, anti-drop, cardan shaft and drive shaft.

Downhole motor is a kind of downhole dynamic drilling tool upon the power of drilling mud. Mud stream from the

outlet of mud pup flows through a by-pass valve into the motor. This stream produces pressure loss at both inlet and

outlet of the pump to push the rotor into ratating, and to transmit the torque and speed onto the bit. The downhole

motor property mainly depends upon its property parameters.

Drilling Motors

Drilling Motors

Drilling Motors,Drill Motor,Mud Motor Drilling,Downhole Drilling Motor

Weifang Shengde Petroleum Machinery Manufacturing Co., Ltd. , http://www.sdpetromachine.com