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Durable 38CrMoAlA Alloy Steel Screw and Barrel with HRC58-60 Surface Hardness and Nitrided Surface Treatment

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Durable 38CrMoAlA Alloy Steel Screw and Barrel with HRC58-60 Surface Hardness and Nitrided Surface Treatment

Durable 38CrMoAlA Alloy Steel Screw and Barrel with HRC58-60 Surface Hardness and Nitrided Surface Treatment
Durable 38CrMoAlA Alloy Steel Screw and Barrel with HRC58-60 Surface Hardness and Nitrided Surface Treatment

Grote Afbeelding :  Durable 38CrMoAlA Alloy Steel Screw and Barrel with HRC58-60 Surface Hardness and Nitrided Surface Treatment

Productdetails:
Plaats van herkomst: China
Merknaam: CHUQI
Modelnummer: CQ-SPP120-6
Betalen & Verzenden Algemene voorwaarden:
Min. bestelaantal: 1SET
Verpakking Details: HOUTEN KIST
Levertijd: 60DAGEN
Betalingscondities: T/T
Levering vermogen: 10 sets
Contact

Durable 38CrMoAlA Alloy Steel Screw and Barrel with HRC58-60 Surface Hardness and Nitrided Surface Treatment

beschrijving
Schroefmateriaal: 38CrMoALA Vatmateriaal: 38CrMoALA
Oppervlaktebehandeling: Met nitrided Oppervlaktehardheid: HRC58-60
Weekmakende uniformiteit: ≥99% Draag het leven: Lang
Toepasselijke materialen: PP en gewijzigde kwaliteiten
Markeren:

38CrMoAlA alloy steel screw barrel

,

nitrided surface treatment screw barrel

,

HRC58-60 hardness screw barrel

Durable 38CrMoAlA Screw & Barrel with HRC58-60 Surface Hardness
Product Introduction

The screw and barrel are the "heart" of the extruder. Their wear resistance directly determines the equipment's service life and long-term stability. The screw and barrel of this production line are both made of high-quality 38CrMoAlA alloy steel, precision machined and then fully nitrided, achieving a surface hardness of HRC58-60.

This high-hardness, high-wear-resistance design effectively withstands long-term abrasion from PP materials (especially those containing glass fiber, fillers, or regrind), significantly extending the replacement cycle of core components. Additionally, the nitrided layer offers good corrosion resistance, suitable for processing modified PP such as flame-retardant grades.

Main Specifications
  • Screw Material: 38CrMoAlA Alloy Steel
  • Barrel Material: 38CrMoAlA Alloy Steel
  • Surface Treatment: Full nitriding
  • Surface Hardness: HRC 58-60
  • Plasticizing Uniformity: ≥99%
  • Screw Diameter: φ120mm
  • L/D Ratio: 30:1
Technical Parameters
Item Parameter
Screw Material 38CrMoAlA Alloy Steel
Barrel Material 38CrMoAlA Alloy Steel
Surface Treatment Nitriding
Surface Hardness HRC 58 - 60
Plasticizing Uniformity ≥ 99%
Screw Diameter φ120 mm
L/D Ratio 30 : 1
Screw Speed Range 10 - 90 rpm
Maximum Output 220-240 kg/h
Customer Q&A
Q: What is special about 38CrMoAlA material?
A: It is a premium nitriding steel containing aluminum. After nitriding, it forms an extremely hard AlN layer, providing high surface hardness while maintaining good core toughness. It also has good fatigue and corrosion resistance, making it the preferred material for extruder screws and barrels.
Q: How long does HRC58-60 hardness last? Does the nitrided layer wear out?
A: The nitrided layer depth is typically 0.4-0.6mm. When processing pure PP or low-filled materials, wear is extremely slow, and service life can reach 5-10 years. Processing glass fiber-reinforced materials accelerates wear, but still far exceeds ordinary steels.
Q: Is this material corrosion-resistant when processing flame-retardant PP?
A: Nitrided 38CrMoAlA has good corrosion resistance and can resist attack from most flame retardant decomposition products. For highly corrosive formulations, higher-grade corrosion-resistant materials (e.g., duplex stainless steel) may be recommended; please specify during procurement.

label:

synchrone PP-omsnoeringslijn,

Productielijn voor PP-omsnoeringsbanden,

PP-bandmachine met hoge productiviteit

Contactgegevens
Jiaxing Chuanqi Machinery Equipment Co., Ltd.

Contactpersoon: Mr. Alex

Tel.: 86-18858326160

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