Screw Barrel for Extruder Machine

Product Description

                                         Extruder Screw & Barrel

Product Description

The barrel is an important part of the extruder as well as the extruder in the extrusion molding system. The barrel works with the screw, the barrel contains the screw, and the screw rotates in the barrel. When the screw rotation drives the plastic to move forward in the barrel, the external heating of the barrel conduction heat to the plastic in the barrel, coupled with the gradual reduction of the screw volume, so that the plastic in the thread groove is extruded, turned over and shear and other forces after being evenly mixed plasticized, along with the movement to the front of the barrel at the same time, gradually melted into a viscous flow state, to complete the plasticization of plastics. The normal cooperation between the barrel and the screw ensures the continuous extrusion production of raw materials.
 

Product Parameters

Material: High Quality Of Alloy Steel

1. 38CrMoALA(JIS SACM645)
2. 42CMo(JIS SCM440)
3. 9Cr18MOV
4. CW6Mo5Cr4V2

Products Are Processed By The Following Steps:
Hot Treatment
Nitriding Treatment
Electroplating Hard-chrome layer
Hi-frequency Quenching
Spray Coating Bimetallic Layer Of Corrosion And Abrasion Resistant
Vacuum Quenching

Compressing rate of screw can be designed according to different raw material and products.

Technical Information for Extruder Conical Screw and Barrel
Main Base Materials	1.38CrMoAlA (SACM645)	Main Alloy Materials	1. Ni-based alloy/Deloro alloy
	2. SKD-61 (Special Tool Steel)		2. Tungsten carbide/Wolfram carbide
	3. 42CrMo (Ultrahigh StrengthSteel)		3. NiCo-based alloy
	4. DC53 (Cold WorkDie Steel)		4. Fe-based alloy
	5. W6Mo5Cr4V2 (High-SpeedToolSteel)		5. Co-based alloy
Processing Technics	1. Heat treatment	Technical parameters	Nitriding layer depth:0.5-0.8mm
	2. Quenching		Nitrided hardness:900-1000HV
	3. Nitriding treatment		Bimetallic layer depth:3 mm
	4. Bimetallic alloy welding for screw		Bimetallic hardness:57~69HRC
	5. Bimetallic alloy centrifugal casting for barrel		Hard-chrome plating hardness after nitriding:≥950HV
	6. Hard-chrome electroplating		Chrome-plating layer depth:0.03-0.09mm
	Linearity of screw:0.015mm		Surface roughness:Ra 0.4

 

Detailed Photos

 

Company Profile

Zhangjiagang City Chenxing Machinery Ltd. CO. was established in 2002, its predecessor is Zhangjiagang City Samsung Machinery Plastic Factory, focusing on the production of plastic machinery for more than 20 years. It is a progressive enterprise integrating new product development, product manufacturing, sales and trade in one.
The main products include: pipe, profile, sheet and pelletizing extrusion machinery, waste plastic recycling production machinery, and all kinds of auxiliary machines necessary in the process of plastic production, such as loading machines, mixers, formulators, grinding machines, mould temperature machines, chillers, etc.
We sincerely welcome customers at home and abroad to cooperate with us, and sincerely welcome to visit our company. Chenxing is willing to work with you to create a future together.