What is a nitrided extrusion barrel?
The extrusion barrel is an important part of the extrusion machine. The extrusion barrel works together with an extrusion screw to convey, compact, melt, stir and press the plastic. Nitriding is a heat-treating process that diffuses nitrogen into the surface of an extrusion screw to create a case-hardened surface. It gives excellent corrosion resistance against humid air and water. It is a case-hardening process.
Barrelize can operate several treatment in-house such as for your injection barrel: nitriding, bimetallic. Among them, the nitrided injection barrel is the most widely used one as it’s almost suitable for all general purpose application and normally work well with all OEM injection machines.
How to make the nitrided extrusion barrel?
Barrelize has its own nitriding furnace in-house. The extrusion barrel will be put into the nitriding furnace with nitrogen under a certain temperature and humidity environment. Barrelize nitrided extrusion barrel will be put into the furnace for 5 days and nights. After 5 days' deep nitriding, a nitrided layer with relatively high hardness is formed on the surface of the barrel.
What 's the specification of Barrelize nitrided extrusion barrel?
The nitrided layer can reach 0.05-0.07mm. The hardness can reach HV950±50or above, equivalent to HRC68~69.
The general advantage of Barrelize nitrided extrusion barrel: it can improve corrosion resistance and wear resistance.
The main benefits of nitrided extrusion barrel: improve plasticizing rate and increased production.
Call us now to talk to our team about your specific demand. We have the expert here to listen to your demands and understand what you are looking for.
Product
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Material Base
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Treatment
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Technical Parameter
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Application
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Barrel
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38CrMoAlA
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Nitriding
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tempering hardness :HB260-280 nitriding hardness: HV950 nitride layer depth :0.4-0.6MM, brittleness:≤ 2
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Commonly used for acid-free plastics with GF less than 10%, such as PP\PS\AS\ABS\TPU\TPE
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Barrel
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38CrMoAlA
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Bimetallic Fe-based alloy
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Alloy thickness: 1.5-2MM Surface hardness:HRC60-65
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Commonly used for adding acid plastic with GF less than 30%,PC/PA
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Barrel
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38CrMoAlA
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Bimetallic Ni-based alloy+15% tungsten carbide powder
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Alloy thickness: l.5-2MM, Surface hardness HRC52~55
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Commonly used for adding acid plastic with GF less than 35%, PA/LCP/PBT
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Barrel
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38CrMoAlA
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Bimetallic Ni-based alloy+25% tungsten carbide powder
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Alloy thickness: l.5-2MM Surface hardness: HRC58~62
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generally used to add aci lastic PEEK/PPS/LCP/flame retardant
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