Tubular bright heat treatment furnace & ovens

Tubular bright heat treatment furnace & ovens

Heat treatment furnace manufacturer,Jiangsu Hongtai Industrial Furnace Technology Co., Ltd

Tube furnace for the vertical furnace, by the gas burner, furnace tube radiation chamber, convection chamber, chimney and other major components, of which the gas burner flame size, by its adjusting sleeve manually adjusted.

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Product Introduction

Tubular Bright Heat Treatment Furnace & Ovens - Precision Solutions for Continuous Bright Processing | Raymond Plating Equipment

Tubular Bright Heat Treatment Furnace & Ovens

Precision Solutions for Continuous Bright Processing of Wires, Strips, and Small Components

Product Introduction

Our Tubular Bright Heat Treatment Furnaces & Ovens are specifically designed for continuous, high-precision, oxidation-free heat treatment of elongated materials such as wires, strips, and small, delicate components. These furnaces feature a sealed tube or multiple tubes through which the material passes, ensuring a highly controlled protective atmosphere (typically hydrogen, dissociated ammonia, or inert gases like nitrogen and argon) throughout the entire heating and cooling cycle. This design guarantees a consistently bright, clean surface finish, eliminating the need for post-treatment cleaning. Tubular furnaces are crucial in industries requiring high throughput and exceptional surface quality, including electronics, medical devices, automotive, and specialized wire manufacturing.

Core Advantages for Continuous Bright Processing

Continuous Processing Capability: Designed for high-volume, continuous heat treatment of wires, strips, and small parts, maximizing throughput and efficiency.
Exceptional Surface Brightness: Achieves superior oxidation-free surfaces due to precise atmosphere control within the sealed tube, eliminating post-treatment cleaning.
Uniform Heating & Cooling: Ensures consistent temperature distribution along the tube length and controlled cooling zones for optimal material properties and surface finish.
Versatile Atmosphere Options: Compatible with various protective atmospheres (hydrogen, dissociated ammonia, nitrogen, argon) to suit diverse material and process requirements.
Energy and Gas Efficiency: Optimized tube design and insulation minimize heat and gas consumption, leading to reduced operational costs.
Automated Control & Safety: Integrated PLC control system with real-time monitoring, recipe management, and comprehensive safety interlocks for reliable and secure operation.
Compact Footprint: Efficient design allows for high processing capacity within a relatively small physical footprint, ideal for space-constrained facilities.

Technical Specifications

Parameter	Unit	Range/Value	Notes
Maximum Working Temperature	°C	800 - 1150	Customizable based on application
Working Atmosphere	-	Hydrogen, Dissociated Ammonia, Nitrogen, Argon	Selectable based on material and process
Atmosphere Purity	%	>99.999	Ensures oxidation-free environment
Rated Power	KW	15 - 150	Efficient heating systems
Tube Diameter	mm	φ20 - φ200	Custom sizes and multi-tube configurations available
Heated Length	mm	500 - 3000	Customizable for various throughputs
Temperature Uniformity	°C	±3 (typical)	Multi-zone heating control
Control Accuracy	°C	±1	Advanced PID control
Cooling Method	-	Water-cooled jacket, Forced gas cooling	Rapid cooling for bright finish
Control System	-	PLC + Touchscreen HMI	Advanced automation and data logging
Safety Features	-	Atmosphere interlocks, Over-temperature protection, Emergency shutdown	Ensures safe operation

Working Principle

Tubular bright heat treatment furnaces operate on a continuous flow principle, where materials pass through a sealed tube or multiple tubes within a heated chamber. The primary objective is to perform heat treatment processes like annealing, brazing, or sintering in a highly controlled, oxygen-free environment to achieve a bright, clean surface finish. The protective atmosphere, typically hydrogen, dissociated ammonia, nitrogen, or argon, is continuously fed into the tube, creating a positive pressure that prevents ambient air from entering and reacting with the material at high temperatures.

The material, such as wire, strip, or small components, is fed into one end of the tube and conveyed through the heated zone, where it reaches the desired processing temperature. Heating elements surrounding the tube provide uniform heat distribution. After the heating and soaking stages, the material moves into a cooling zone, still within the protective atmosphere. This controlled cooling, often facilitated by water-cooled jackets or forced gas circulation, rapidly brings down the material's temperature while preventing re-oxidation, thus preserving the bright surface. The treated material then exits the tube at the other end.

The key to these furnaces is the precise management of the atmosphere and temperature profiles along the length of the tube. Advanced gas flow control systems ensure the purity and composition of the protective gas, while multi-zone temperature control maintains uniform heating and cooling rates. Safety features, including gas interlocks and emergency shutdown systems, are critical, especially when using flammable gases like hydrogen. The entire continuous process is typically automated, allowing for high throughput, consistent quality, and efficient operation with minimal manual intervention.

Process Flow

Material Feeding

Wire, strip, or small components are continuously fed into one end of the sealed furnace tube.

Atmosphere Control & Heating

Protective atmosphere is introduced, and material is heated to target temperature within the tube.

Soaking & Cooling

Material is held at temperature, then cooled rapidly within the protective atmosphere to maintain brightness.

Material Discharge

Treated material exits the tube with a bright, oxidation-free surface, ready for subsequent processing.

Solving Customer Pain Points

Achieving Consistent Brightness in Continuous Production

Our tubular furnaces ensure uniform, oxidation-free surfaces for high-volume continuous processing of wires, strips, and small parts, eliminating variations in surface quality.

Minimizing Post-Treatment Costs for Delicate Parts

By delivering a bright finish directly, these furnaces remove the need for costly and potentially damaging post-treatment cleaning processes, especially critical for delicate or precision components.

Optimizing Throughput for Elongated Materials

Designed for continuous feeding, these systems significantly increase production throughput for wires, strips, and other elongated materials compared to batch processes.

Ensuring Material Integrity and Performance

Precise atmosphere and temperature control prevent material degradation, preserving the mechanical and electrical properties crucial for high-performance applications.

Handling Diverse Material Types and Sizes

With customizable tube diameters and atmosphere options, our furnaces can accommodate a wide range of materials and small component sizes, offering high versatility.

Reducing Energy and Gas Consumption

The efficient design of tubular furnaces, with optimized heating and atmosphere management, leads to lower energy and protective gas consumption, reducing operational expenses.

Customer Success Stories

An electronics component manufacturer reported a 45% increase in production efficiency and a dramatic reduction in scrap rates after integrating our continuous tubular bright annealing furnace for their precision wire components, leading to superior product reliability.

Customized Services

We offer extensive customization services for our tubular bright heat treatment furnaces, including tailored tube dimensions, multi-tube configurations, specific atmosphere control systems, and integration with existing production lines. Our expert team collaborates closely with clients to develop solutions that precisely match their material type, desired throughput, and process requirements, ensuring optimal performance and seamless integration into their manufacturing workflow.

Related Keywords

tubular bright furnace, continuous bright annealing, wire bright heat treatment, strip bright brazing, oxidation-free tube furnace, protective atmosphere tube furnace, hydrogen tube furnace, small component bright treatment, precision bright furnace, continuous heat treatment, bright finish, industrial tube furnace

Tubular Bright Heat Treatment Furnace & Oven

Working Principle

A tubular bright heat treatment oven operates on the principle of indirect heating within a sealed, controlled atmosphere. The furnace typically consists of a cylindrical, tube-shaped chamber made from high-temperature resistant materials like quartz or alumina. Heating elements, often made of Kanthal or silicon carbide, surround this tube. When electricity passes through these elements, they generate heat, which is then transferred to the material placed inside the tube. The key aspect of a 'bright' heat treatment furnace is the maintenance of a protective atmosphere (e.g., hydrogen, nitrogen, or inert gases) within the tube chamber. This oxygen-free environment prevents oxidation and discoloration of the material surface during heating, ensuring a bright, clean finish. Temperature controllers precisely regulate the heating process, allowing for uniform temperature distribution and accurate control over the thermal cycle.

Heat Treatment Process

The primary heat treatment process performed in a tubular bright heat treatment furnace is bright annealing. This process involves heating metals, particularly stainless steel, copper, and brass, to a specific temperature above their recrystallization point but below their melting point. The material is held at this temperature for a predetermined soaking time to achieve desired microstructural changes, such as stress relief, increased ductility, and improved formability. Following the soaking phase, the material is slowly cooled within the protective atmosphere to prevent re-oxidation. The controlled cooling rate is crucial for achieving the desired mechanical properties without introducing new stresses or distortions. This method is a form of non-oxidizing annealing, ensuring the surface remains free from scale and discoloration, which is critical for subsequent processing or final product appearance.

Industrial Value and Application Products

The industrial value of tubular bright heat treatment furnaces lies in their ability to produce high-quality, aesthetically pleasing, and functionally superior metal components. By preventing surface oxidation, these furnaces eliminate the need for costly and environmentally unfriendly post-treatment cleaning processes like pickling. This not only reduces production costs but also minimizes environmental impact. The precise temperature control and uniform heating ensure consistent material properties, leading to higher product reliability and reduced scrap rates. The bright finish achieved is often a critical requirement for products used in consumer electronics, medical devices, and decorative applications, where surface quality is paramount.

Application Products:

Stainless Steel Tubes and Wires: Used in medical instruments, food processing equipment, and architectural applications, where a bright, corrosion-resistant surface is essential.
Copper and Brass Components: Found in electrical connectors, heat exchangers, and decorative items, benefiting from enhanced conductivity and aesthetic appeal.
Semiconductor Manufacturing: Critical for processes requiring precise heating in an oxygen-free environment, such as annealing silicon wafers or other electronic components to improve their electrical properties.
Automotive Parts: Small, precision components requiring a clean, bright finish and specific mechanical properties.

Tube furnace is a vertical furnace, by the gas burner, the barrel of the radiation chamber, convection chamber, chimney and other major components, including the gas burner flame size, by its adjusting sleeve manually adjusted.

Furnace cylinder is trapped column, the cylinder wall has a refractory short steel plate welded together, the inner wall has not less than 120 mm thick refractory material to ensure that the cylinder to withstand higher temperatures. The tube is welded with stainless steel or carbon steel pipe (the material is determined according to the user's need), and there is an adjustable damper in the smoke tube to ensure the good working efficiency of the system.

Furnace chamber high temperature: 1200 (℃)

Working temperature: 1100 (℃)

Loading capacity: 30-500 (kg)

High output, low energy consumption can be continuous production. Multi-tube type can be from 4 tubes to 48 tubes, can be designed according to the actual needs of users.

Mainly used for ferrous and non-ferrous metals and composite special wire continuous march annealing (or quenching) heat treatment.PID automatic adjustment of high-precision temperature control system, according to the needs of different users to set the parameters, structure, and can provide the corresponding supporting equipment.