Strand Annealing Furnace

Strand Annealing Furnace for Wire and Tube Heat Treatment

Our Strand Annealing Furnace is a continuous heat treatment system engineered for high-precision processing of metallic wires, tubes, and strips. This equipment delivers consistent thermal treatment by pulling individual strands through a controlled atmosphere muffle, ensuring uniform mechanical properties across the entire material length. Operating at temperatures from 100°C to 1300°C with power ratings between 5-3000KW, this furnace achieves bright annealing results without surface oxidation. The system maintains temperature uniformity within ±5°C, processes strand diameters from 0.1mm to 50mm, and supports continuous operation at speeds up to 100 meters per minute. Built with ultra-energy-saving composite fiber insulation and high-alumina refractory bricks, it reduces energy consumption by 30% compared to conventional batch systems while eliminating the need for secondary pickling processes.

Technical Specifications

How It Works?

The continuous annealing process pulls your material through three distinct thermal zones. In the preheating zone, strands gradually reach process temperature without thermal shock. The soaking zone maintains precise temperature for controlled grain refinement and stress relief. Finally, the controlled cooling zone prevents recrystallization or hardening.

Throughout the entire cycle, high-purity protective atmosphere flows continuously through the sealed muffle. This creates a reducing environment that prevents oxidation and achieves a bright, scale-free surface finish. The atmosphere pressure remains slightly positive to prevent air infiltration at entry and exit seals.

Temperature sensors positioned at multiple points feed data to PLC controllers, which adjust heating element output in real-time. This closed-loop control ensures every millimeter of your strand receives identical thermal treatment, regardless of production speed variations or ambient conditions.

Key Performance Advantages

Consistent Material Properties

You get uniform tensile strength and elongation values along the entire coil length. This eliminates the property variations common in batch annealing, where material near the coil exterior experiences different thermal history than the core.

Bright Surface Finish

The controlled atmosphere processing delivers a reflective, oxide-free surface directly from the furnace. You eliminate costly pickling, rinsing, and drying operations while reducing environmental compliance burden.

Energy Efficiency

Our multi-layer insulation structure combines lightweight ceramic fiber with vacuum microsphere bricks. This reduces shell temperature to below 50°C during operation, cutting energy losses by 30% and improving operator safety.

Production Flexibility

Quick atmosphere changeover allows you to switch between different alloys within 15 minutes. Adjustable speed control accommodates various wire diameters and product specifications without equipment modifications.

Industrial Applications

Fine Wire Manufacturing

In thermocouple and resistance wire production, you need precise ductility control for subsequent high-speed drawing operations. Our Strand Annealing Furnace provides the exact grain structure required for drawing passes without breakage, even with nickel-chromium alloys that work-harden rapidly.

Stainless Steel Tubing

Medical and pressure driven applications request scale-free inside surfaces for liquid elements and cleanliness. The persistent shinning toughening prepare guarantees both internal and external distance across surfaces meet ISO 9001 cleanliness measures without auxiliary treatments.

Photovoltaic Lace Processing

Solar cell interconnection strips require particular mechanical properties for mechanized patching. You accomplish the moo abdicate quality and controlled prolongation fundamental for dependable electrical associations beneath warm cycling conditions.

Precision Spring Wire

When creating valve springs or instrument components, reliable mechanical properties are non-negotiable. Strand tempering conveys the uniform microstructure required for unsurprising spring rates and weakness resistance.

Customization Capabilities

Hebei Bolin Electric Heater Fabricating gives comprehensive customization based on your drawings and determinations. We adjust suppress measurements, air frameworks, and control interfacing to coordinate your generation line requirements.

Our building group plans gulf and outlet fixing frameworks for your particular strand distance across run. We design warming zones to coordinate your alloy's warm affectability and coordinated the heater with your existing payoff and take-up equipment.

ODM and OEM administrations incorporate custom control boards with your favored HMI brand, altered cooling frameworks for heat-sensitive materials, and specialized climate blending stations for exclusive gas blends.

Quality Assurance

We conduct temperature consistency overviews over the whole suppress volume utilizing calibrated thermocouples at nine standard positions. Dew point examination confirms air quality underneath -40°C to avoid moisture-related oxidation.

Helium mass spectrometry spillage rate testing affirms seal astuteness at less than 1×10⁻⁶ mbar·L/s. We perform metallographic examination of prepared tests to confirm grain measure and nonattendance of decarburization or intergranular oxidation.

Surface reflectance estimations measure the shinning wrap up quality utilizing Ra unpleasantness values underneath 0.4μm. All test certificates go with your hardware at delivery.

After-Sales Support

Your buy incorporates on-site establishment supervision and commissioning by our specialized engineers. We give administrator preparing covering handle parameter optimization, schedule support methods, and investigating protocols.

The hardware carries a 1-year guarantee covering all components but consumable warming components. We keep up save parts stock for fast conveyance and offer farther demonstrative back by means of secure arrange connection.

On-site upkeep administrations and gear overhauls stay accessible all through the operational life of your heater. Our specialized group helps with handle improvement when you present unused amalgams or item details.

Frequently Asked Questions

What environment gasses can the heater handle?

Our standard arrangement bolsters hydrogen, separated smelling salts, and nitrogen. We can adjust environment frameworks for argon, shaping gas mixes, or restrictive blends based on your metallurgical requirements.

How do you avoid oxidation at the passage and exit points?

We utilize water-cooled seals with positive air weight at both closes. The seal plan makes a gas shade that avoids discuss penetration whereas permitting strand entry. Standard seal upkeep guarantees long-term effectiveness.

Can you handle numerous strands simultaneously?

Yes. We plan multi-strand arrangements with free pressure control for each strand. This increments throughput whereas keeping up person warm treatment quality for each wire or tube.

What's the commonplace vitality consumption?

Energy utilization depends on preparing temperature, strand distance across, and line speed. For stainless steel wire at 1050°C and 50m/min, anticipate around 150-200 kWh per ton of prepared material.

Do you give establishment exterior China?

We offer neighborhood establishment supervision and commissioning back in your office. Our engineers travel to your area for gear setup, framework confirmation, and administrator preparing as portion of the total benefit bundle.

Contact Us

Ready to improve your wire and tube processing quality with Strand Annealing Furnace? Our engineering team at Hebei Bolin Electric Furnace Manufacturing is prepared to discuss your specific requirements.

Email us at 15720259172@163.com with your material specifications, production volume targets, and technical questions. We'll provide detailed technical proposals, including process parameters, equipment layouts, and energy consumption projections tailored to your application.