Why is SCR Melting Furnace Better?

Author: Hongteng

Link to Hitfar

Date: -01-08

Many customers often wonder which type of induction furnace is superior. The choice of electric furnace largely depends on the production capacity and the materials used. Let's analyze the key factors:

Frequency

Frequency: IGBT operates as a high-frequency power component, ideally suited for frequencies above 8KHz. In contrast, SCR functions as a medium-frequency power component, optimized for frequencies below 5KHz.

Material Size

Material Size: IGBT furnaces are appropriate for materials with a diameter of less than 50mm. They work better with smaller pieces. On the other hand, SCR furnaces are effective for larger material sizes.

Working Conditions

Working Conditions: IGBT induction furnaces require an isolated working environment due to their need for stable temperatures and a clean atmosphere. 1. The working conditions of a rolling mill machine can introduce various pollutants over prolonged use, presenting challenges for IGBT systems. 2. While IGBT excels in processing material appearances, it is less suited for integration into rolling mill production lines. Conversely, SCR induction heating furnaces are widely utilized in rebar rolling mill production lines, offering enhanced performance and efficiency.

Furnace Voltage

Furnace Voltage: IGBT furnaces can achieve a maximum voltage, requiring larger inductance-capacitance setups which result in longer furnace bodies with more coils to maintain voltage stability. SCR heating furnaces, however, operate at a voltage of only 750-900V and require only 30% of the inductance-capacitance needed for IGBT furnaces. This design enables a shorter furnace body for SCR systems.

Taking these factors into account will guide us in selecting the most suitable electric induction furnace.

Key Differences Between SCR and IGBT Heating Furnaces

Greetings, friends! I'm Linda Bai, and I've observed that many customers feel uncertain when deciding between purchasing an IGBT or an SCR furnace.

Let’s outline some differences between these two types of furnaces:

A. Frequency

As previously mentioned, IGBT is a high-frequency component, especially efficient at frequencies higher than 8KHz, while SCR is classified under medium frequency, with optimal performance at lower frequencies, around 5KHz.

B. Material Size

IGBT is suitable for materials with a diameter under 50mm, providing better results for small pieces. Conversely, SCR heating furnaces are tailored for larger materials.

For additional information regarding SCR Melting Furnace, please reach out to us. We are here to provide expert assistance.

C. Working Conditions

IGBT furnaces perform best in dedicated working environments, as they require stable temperatures and cleanliness. Pollution in rolling mills can pose complications for these furnaces, especially when used over extended periods. Furthermore, while IGBT is optimal for aesthetic processing of materials, it is not the best choice for rolling mill lines. In contrast, SCR heating furnaces are extensively used in rolling mill operations, delivering improved efficiency and effectiveness.

D. Furnace Voltage

The maximum voltage of IGBT furnaces can be substantial, necessitating increased inductance-capacitance, which leads to longer furnace lengths and additional coils. On the other hand, SCR heating furnaces work with a voltage range of 750-900V and only require 30% of the inductance-capacitance of IGBT models, resulting in shorter furnace bodies.

E. Furnace Coil Quantity

The coil quantity is determined based on the length of the raw materials. For longer materials, it is usual to configure more heating coils within the furnace body to ensure optimal production capacity. This design aids in rapid replacements and maintenance, significantly reducing production downtime during emergencies.

If you require heating for any metal products, please feel free to contact Linda Bai at +86 or via email. Our company stands out as the global leader in providing Gold & Platinum Melting Furnace. We serve as your comprehensive solution provider, and our specialized team is ready to assist you in finding exactly what you need.