230x200x2510mm Furnace Rollers

What are the key functions of furnace rollers in high-temperature casting production lines?

1. Ensure Smooth Product Conveying
Furnace rollers form a continuous support chain in the drum-type heating furnace, allowing billets, plates, or pipes to move smoothly within the high-temperature zone, avoiding obstructions caused by gravity or thermal expansion.
2. Ensure Thermal Uniformity
Through their uniform contact surface, furnace rollers help evenly transfer heat across the workpiece surface, reducing localized overheating or cold spots and improving heat treatment quality.
3. Improve Production Efficiency
High-speed, synchronized rotation of furnace rollers enables continuous production, significantly shortening heat-up time and furnace change cycles, reducing energy consumption and increasing production capacity.
4. Extend Equipment Life
Furnace rollers made of high-temperature resistant alloys offer excellent wear and thermal shock resistance, reducing downtime and maintenance due to wear.
Company Advantages: Wuxi Junteng Fanghu Alloy Casting Co., Ltd. uses a centrifugal casting process to achieve uniform wall thickness (thickness tolerance ≤ 0.2mm), ensuring the structural stability and mechanical strength of furnace rollers in high-temperature environments, thus supporting these key functions.

How can dimensional deviations caused by thermal expansion be controlled when using furnace rollers in high-temperature furnaces?

1. Material Selection and Thermal Expansion Coefficient Matching
Use high-nickel-chromium alloys or special heat-resistant steels with thermal expansion coefficients similar to those of the furnace body material, minimizing dimensional changes when the temperature rises.

2. Precision Centrifugal Casting and Post-Processing
Use centrifugal casting to achieve consistent wall thickness, followed by precision turning and heat treatment, to keep the finished product dimensional deviation within 0.2mm.

3. Online Monitoring and Dynamic Compensation
Install temperature sensors and displacement measuring devices in the furnace roller bearings or support systems to monitor temperature changes in real time and fine-tune the speed or axial position using a servo system to prevent deviations caused by thermal expansion.

4. Preheating and Staged Heating Strategies
Use staged heating or gradient heating to gradually acclimate the furnace rollers before entering the high-temperature zone, minimizing transient expansion caused by sudden thermal shock.

Company Advantages: Junteng Fanghu possesses a comprehensive heat treatment and surface treatment process, enabling high-temperature aging and precision calibration after casting, ensuring that every furnace roller has passed thermal expansion verification before shipment.

What are the technical advantages and service system of Wuxi Junteng Fanghu Alloy Casting Co., Ltd. in furnace roller casting?

1. Core Centrifugal Casting Technology
Utilizing high-speed centrifugal casting, we can produce large-sized furnace rollers with outer diameters ranging from 45mm to 1200mm and lengths from 0 to 5500mm, ensuring uniform wall thickness, a dense interior, and improved thermal shock resistance.

2. Full-Process Quality Control
We strictly adhere to the ISO9001 quality management system, including raw material chemical composition testing, non-destructive testing (ultrasound and X-ray), and dimensional tolerance verification to ensure that each furnace roller meets high-temperature durability standards.

3. Customized Design and Technical Support
Our professional design team can provide material selection, structural optimization, and finite element thermal stress analysis based on the customer's furnace type, temperature range, and conveying requirements, offering a one-stop technical solution.

4. Fast Delivery and After-Sales Service
Through our in-house processing workshop and external logistics network, we can deliver within 30 days (except for large-volume customization). We also provide on-site installation guidance, operation and commissioning, and long-term maintenance training.