Introducción
As the automotive industry continues to demand more precision in components, particularly in reducing weight while improving strength and wear resistance, tiras de acero endurecido y templado have become an essential material in automotive manufacturing. MTC de Jiaxiao produces cold-rolled high-carbon thin steel strips that undergo advanced heat treatment processes, specifically designed for manufacturing various sheet-like parts such as clutch plates and spring plates. This article will explore the specific applications of these steel strips in the automotive industry.
Characteristics of Hardened and Tempered Steel Strips
Tiras de acero endurecido y revenido., processed with precision heat treatment, offer the following properties:
- High hardness and strength: The hardening process increases the steel strip’s hardness, enabling it to withstand high loads and resist wear.
- Buena dureza: The tempering process ensures the steel retains some toughness alongside its hardness, making it adaptable to dynamic load environments.
- Wear resistance and fatigue strength: These two characteristics are crucial for the long-term use of sheet parts in automobiles, especially in high-frequency operations or under constant friction.
Performance Requirements for Steel Strips in the Automotive Industry
In automotive manufacturing, sheet components have specific performance requirements, incluido:
- High wear resistance: Sheet parts like discos de embrague and brake plates undergo frequent contact and friction, so high wear resistance is essential.
- High fatigue strength: Sheet components are subjected to repeated stress over time, necessitating excellent fatigue resistance to extend their lifespan.
- Dimensional stability: When manufacturing precision parts, steel strips must offer high dimensional stability to ensure the final components fit perfectly after processing.
Application Examples of Hardened and Tempered Steel Strips in the Automotive Industry
Case 1: Automotive Clutch Plates
Automotive clutch plates are key friction elements in the power transmission system. They must withstand high temperatures while possessing excellent wear resistance and fatigue performance. Jiaxiao MTC’s cold-rolled high-carbon thin steel strips, through quenching and tempering processes, effectively enhance the hardness and wear resistance of the clutch plates, extending their service life. In real-world applications, these steel materials show excellent fatigue resistance, capable of handling frequent torsional stress and high-temperature friction environments.
Case 2: Automotive Spring Plates
Spring plates are critical components in a vehicle’s suspension system, responsible for absorbing road impact and maintaining vehicle stability. Since spring plates endure long-term dynamic loads, Jiaxiao MTC’s hardened and tempered thin steel strips enhance the strength and elastic limit of the steel, ensuring that the spring plates can withstand high loads without breaking. Al mismo tiempo, they offer good fatigue resistance. The material’s high toughness and fatigue resistance make it ideal for high-strength, high-frequency suspension system applications.
In-Depth Analysis of Steel Grade Selection
Clutch Plates
Application Requirements: Clutch plates are core components of the power transmission system. They operate in a complex environment, enduring high temperatures, pressure, y fricciones frecuentes. Por lo tanto, clutch plates demand high hardness, resistencia al desgaste, and fatigue strength from the steel material.
Recommended Steel Grades: For this application, we recommend 65Minnesota o 70# high-carbon steel. These steels contain a higher manganese content, which significantly enhances hardness after heat treatment (reaching HRC 45-50) while offering good toughness and wear resistance.
- 65Minnesota: This steel grade exhibits excellent strength and fatigue resistance after quenching and tempering, making it suitable for high-load clutch plates.
- 70# high-carbon steel: It offers high strength and hardness, ideal for situations requiring superior wear resistance but lighter loads, ensuring longer service life in friction-intensive environments.
Suggested Heat Treatment Process: Quenching at 850°C followed by tempering at 180°C. This process achieves high hardness while enhancing toughness and impact resistance, ensuring stable performance under frequent friction conditions.
Spring Plates
Application Requirements: Spring plates must endure long-term dynamic loads and high-frequency impacts. The material must possess a sufficient elastic limit and fatigue resistance, with moderate hardness, tenacidad, and elasticity being key indicators.
Recommended Steel Grades: We recommend 50CrV4 (DE 1.8159) o SUP10 acero. Después del tratamiento térmico, these steel grades can achieve high strength while maintaining excellent elasticity and fatigue strength.
- 50CrV4: This chromium-vanadium alloy steel offers good hardenability and toughness. After tempering, it improves the elastic limit and fatigue resistance, suitable for high-load spring plates.
- SUP10: A Japanese-standard spring steel commonly used in high-stress applications. It provides excellent toughness and fatigue resistance, ensuring the springs do not break under prolonged dynamic loads.
Suggested Heat Treatment Process: Quenching temperature at 850-870°C, with tempering at around 450°C. This process enhances hardness while ensuring material elasticity and toughness.
Brake Plate Backing
Application Requirements: The backing plate for brake pads requires high hardness and wear resistance. The material must also retain good mechanical properties in high-temperature environments while offering decent impact toughness.
Recommended Steel Grades: We suggest using C75 o SK85 high-carbon tool steel. These steels exhibit excellent strength and wear resistance, and with appropriate quenching and tempering, they meet the performance requirements for brake plate backing.
- C75: A medium-carbon steel ideal for applications requiring high wear resistance and strength in brake plate backing components. It maintains hardness and stability at high temperatures.
- SK85: A high-carbon tool steel that offers high hardness and impact toughness after heat treatment, making it suitable for high-load sheet components in braking systems.
Suggested Heat Treatment Process: Quenching temperature for C75 and SK85 should be controlled at 820-850°C, with tempering at 150-200°C. The treatment achieves a hardness of HRC 50-55, ensuring high strength and wear resistance.
Small Spring Blades in Automotive Suspension Systems
Application Requirements: These small spring blades are primarily used for shock absorption and vibration control. The material needs to offer excellent fatigue resistance and elasticity while also providing durability and some corrosion resistance.
Recommended Steel Grades: 60Si2Mn is an excellent choice. This steel grade provides high fatigue resistance and outstanding elastic recovery, making it suitable for small spring blades that endure repeated stress over long periods.
- 60Si2Mn: A silicon-manganese alloy spring steel known for its high strength and elasticity. Después del tratamiento térmico, it demonstrates excellent durability and fatigue resistance, ideal for use in suspension systems.
Suggested Heat Treatment Process: Quenching at 850-880°C, with tempering at 450°C. This treatment increases strength while maintaining high elasticity and toughness.
Conclusión
En la industria automotriz, different components have specific performance requirements, making it essential to select the appropriate steel grade. MTC de Jiaxiao offers professionally heat-treated cold-rolled high-carbon thin steel strips to ensure optimal performance in terms of wear resistance, dureza, fatigue resistance, and toughness. We understand the nuanced performance needs of each automotive part and provide detailed steel grade recommendations. Through precise heat treatment processes, we ensure that every batch of our products meets or exceeds our customers’ expectations.
If you have any questions or special requirements regarding steel grade selection, Jiaxiao MTC’s technical team is available to provide expert consultation and help you choose the most suitable steel materials to support your automotive components with reliable material solutions.
