 
        SINGLE SCREW AND BARREL FOR EXTRUSION MACHINE
HONGTUO SCREW 
        
Extrusion machine single screw and barrel specification
1.Screw diameter application: Φ10~Φ450
2.Maximum overall length application: 15000mm.
                    
                
RAW MATERIAL AND HARDENING REQUIREMENTS
Material:
38CrMoAIA (1.8509),42CrMo,41CrAlMo7;Stainless steel 316,316L,316Ti,9Cr18Mo,9Cr18MoV ,Hastelloy C276,C4, M2,SKD61, (H13) SKD11 (D2),K110, Inconel 625
Heat treatment method: Nitriding treatment,Surface hardness: HV≥900[HRC≥68].Nitriding depth: 0.6-0.8mm.
Surface coating treatment, Depth: 0.02-0.15mm.
High-frequency quenching treatment, overall hardening.Hardness(HRC): 55-65
Bimetallic screw and barrel series: Iron-based alloy(HT2TJ). Hardness(HRC) : 58-60 Nickel base alloy(HT6NJ).Hardness(HRC):53-56 lron-based alloy with tungsten, carbide(HT3W). Hardness(HRC):58-60 Nickel base alloy with tungsten carbide(HT5JW).Hardness(HRC):55-58 Superhard alloy(HT9TT).Hardness(HRC):62-65
                    
                
                     
                
                     
                
                    
                
                    
                
PROCESSING
Nitride screw processing:Book material → Heat treatment(quenching and tempering) → Rough machining → Heat treatment(setting) → Finishing machining → Rough milling → Heat treatment(Nitride hardening) → Finishing milling → Inspection → Delivery.
Bimetallic screw processing:Book material → Heat treatment (quenching and tempering) → Rough machining → Heat treatment(setting) → Finishing machining → Flight spray and melt bimetallic alloy → Rough milling → Inspection → Heat treatment(Nitride hardening) → Finishing milling → Inspection → Delivery
Nitride barrel processing:Book material → Rough machining (inner diameter) → Heat treatment(quenching and tempering) → Finishing machining → Rough miling → Heat treatment (Nitride hardening) → Finishing milling → Inspection → Delivery.
Bimetallic barrel processing:Book material → Rough machining(inner diameter) → Bimetallic alloy casting(inner diameter) → Finishing machining → Finishing milling → Inspection → Delivery.
                    
                
                     
                
                    
                
Extrusion machine single screw and barrel specification
1.Screw diameter application: Φ10~Φ450
2.Maximum overall length application: 15000mm.
 
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