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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

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

Datos del producto:
Lugar de origen: Porcelana
Nombre de la marca: CHUQI
Número de modelo: CQ-SPP120-6
Pago y Envío Términos:
Cantidad de orden mínima: 1 juego
Detalles de empaquetado: CAJA DE MADERA
Tiempo de entrega: 60DÍAS
Condiciones de pago: T/T
Capacidad de la fuente: 10 juegos

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

descripción
Material del tornillo: 38CrMoALA Material del barril: 38CrMoALA
Tratamiento superficial: Nitrurado Dureza superficial: HRC 58 a 60
Uniformidad plastificante: ≥99% Lleva la vida: Largo
Materiales aplicables: PP y grados modificados
Resaltar:

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.

Contacto
Jiaxing Chuanqi Machinery Equipment Co., Ltd.

Persona de Contacto: Mr. Alex

Teléfono: 86-18858326160

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