High Corrosion Resistance Single Screw and Barrel for Rubber Extruder Machine

  • Model NO.: customized
  • Specification: ISO 9001: 2008 approved
  • HS Code: 84779000
  • Trademark: ZHONGYANG
  • Origin: China
Diameter of cold feed screw and barrel: Φ 30mm- Φ 300 mm
Diameter of pin screw and barrel: Φ 75mm- Φ 200 mm
L/D ratio: 12-18

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
Focus on quality and service.
Experienced manufacturer, we will be the best choice.

Speaker Aluminum Basin Frame


Speaker aluminum basin frame is the production of multimedia speaker and toy horn accessories.


Function: it is the matrix of installation vibration system, support system and magnetic return system. 
Material: Speaker cast aluminum basin frame, the basic function and iron basin frame work the same principle, is a relatively high-end speaker body parts. The process is more complex, the appearance is more high-end and beautiful, and the cost is also higher.
Surface treatment process: electroplating, electrophoresis, baking black. Color can also be customized according to customer requirements.

Modular products: there are a variety of different specifications for customers to choose.

Private mold products: can be customized, according to customer samples or drawings for development and production.


5 Inch Speaker aluminum basin frame/Product Display


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5 Inch Aluminum Frame

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Fengshun County Boli Electroacoustic Co., Ltd. , https://www.gdfsboli.com