Continuous Bright Annealing Furnace Electric Annealing Oven for Metal Steel Copper Tube Treatment

A bright annealing furnace is a professional industrial heat treatment device designed for oxidation-free metal annealing. Different from ordinary annealing furnaces working in the air, it adopts a fully sealed furnace body with protective atmosphere or vacuum environment throughout the whole production process. By filling high-purity nitrogen, hydrogen-nitrogen mixed gas or ammonia decomposed gas, it strictly isolates oxygen and controls the internal oxygen content below 10ppm. Metals are heated, insulated and cooled under oxygen-free conditions to eliminate internal stress, refine grain structure and restore metal ductility. The finished workpieces retain a mirror-bright metallic surface without oxidation, decarburization, blackening or scaling, requiring no pickling or secondary polishing. It is core processing equipment for high-precision metal manufacturing.

The bright annealing furnace realizes stress relief and bright finishing through controlled atmosphere heat treatment. Workpieces are sent into the sealed furnace cavity and heated according to a precise temperature curve. Under continuous protective gas filling, high-temperature oxidation is completely avoided. After uniform high-temperature soaking, workpieces are cooled at a controllable constant speed via a professional cooling system. The whole process prevents secondary oxidation, ensuring stable mechanical performance and flawless bright surface of metal parts.

1. Zero Oxidation & Mirror Bright Finish Full sealed structure and low-oxygen protective atmosphere eliminate surface oxidation and discoloration. No pickling or polishing required, saving production costs and meeting global environmental standards.

2. Stable & Uniform Material Performance Multi-zone PID precise temperature control ensures uniform furnace temperature. Refines metal grain structure, improves ductility and toughness, avoiding cracking and deformation during subsequent processing.

3. Wide Material Compatibility Suitable for stainless steel, copper, brass, carbon steel, alloy steel and precision hardware parts, covering most industrial metal annealing scenarios.

4. Energy-Saving & High Efficiency High-quality heat insulation lining reduces heat loss and power consumption. Fully automatic operation lowers labor costs and improves production efficiency.

5. High Safety & Low Maintenance Equipped with complete safety interlock systems for over-temperature, gas pressure and water shortage. Durable furnace structure, long service life and low failure rate.

1. Continuous Mesh Belt Bright Annealing Furnace Fully automatic continuous production type, suitable for mass processing of small hardware, tubes and wires. 24-hour uninterrupted operation with high efficiency.

2. Bell Type Bright Annealing Furnace Batch processing type, ideal for large coils, strips and wire reels. Large loading capacity, suitable for heavy industrial materials.

3. Tube Bright Annealing Furnace Customized for precision stainless steel tubes, copper capillary tubes and metal pipes, ensuring uniform tube wall performance.

4. Box Type Vacuum Bright Annealing Furnace For small-batch and special-shaped precision parts, high vacuum degree, ultra-high surface finish.

Widely used in stainless steel processing, copper alloy processing, precision hardware manufacturing, automotive parts, electronic components, medical accessories and special alloy industries. Ideal for tubes, wires, strips, fasteners, stamping parts and precision metal components.

We are a professional bright annealing furnace manufacturer providing customized non-standard equipment solutions. We offer 24/7 online technical support, Complete spare parts supply and long-term after-sales service ensure stable equipment operation for global clients.