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Box type bright heat treatment furnace & Ovens
Heat treatment furnace manufacturer,Jiangsu Hongtai Industrial Furnace Technology Co., Ltd
Box-type bright heat treatment furnace adopts double-layer shell structure, equipped with air-cooling system, so that the temperature of the shell surface is less than 60 degrees.
Products
Box Type Bright Heat Treatment Furnace & Ovens
Achieving Superior Surface Quality Through Controlled Atmosphere Annealing
Product Introduction
Our Box Type Bright Heat Treatment Furnaces and Ovens are designed for batch processing of various metal components, ensuring a bright, non-oxidized surface finish after heat treatment. These furnaces are ideal for applications where surface integrity and appearance are critical, such as in the automotive, aerospace, and electronics industries. They operate with a precisely controlled protective atmosphere (e.g., hydrogen, nitrogen, or dissociated ammonia) to prevent oxidation and decarburization during heating and cooling cycles. The robust box-type design allows for flexible loading of different part sizes and shapes, making them highly versatile for a wide range of bright annealing, brazing, and sintering processes. With advanced temperature uniformity and atmosphere management systems, our box type furnaces deliver consistent, high-quality results, reducing the need for post-treatment cleaning and improving overall production efficiency.
Key Advantages of Our Box Type Bright Heat Treatment Furnaces & Ovens
- Excellent Surface Finish: Guarantees a bright, clean, and non-oxidized surface, eliminating the need for subsequent pickling or grinding.
- Precise Atmosphere Control: Maintains a highly controlled protective atmosphere to prevent oxidation, decarburization, and discoloration.
- Superior Temperature Uniformity: Advanced heating and insulation ensure consistent temperature distribution throughout the chamber, leading to uniform material properties.
- High Versatility: Suitable for a wide range of processes including bright annealing, brazing, sintering, and stress relieving for various metals and alloys.
- Flexible Loading: The box-type design allows for easy loading and unloading of diverse part geometries and batch sizes.
- Energy Efficiency: Optimized design and insulation minimize heat loss, contributing to lower energy consumption and reduced operating costs.
- Robust Construction: Built with durable materials for long-term reliability and minimal maintenance in demanding industrial environments.
- Automated Control: Equipped with advanced PLC-based control systems for precise process management, data logging, and repeatability.
Technical Specifications
| Parameter | Unit | Range/Value | Notes |
|---|---|---|---|
| Maximum Operating Temperature | °C | Up to 1200 (depending on model and application) | Customizable for specific heat treatment processes |
| Protective Atmosphere | - | Hydrogen, Nitrogen, Argon, Dissociated Ammonia | Ensures bright, non-oxidized surface finish |
| Atmosphere Purity | ppm | < 50 (Oxygen) | Critical for preventing oxidation |
| Temperature Uniformity | °C | ±3 to ±5 (typical) | Ensures consistent metallurgical results |
| Working Dimensions | mm | Customizable | Tailored to workpiece size and production volume |
| Heating Method | - | Electric Resistance, Gas-Fired | Selected based on energy efficiency and process needs |
| Control System | - | PLC-based with HMI, SCADA integration | Automated and programmable for precise process control |
Working Principle
Box type bright heat treatment furnaces operate by heating metal components in a sealed chamber under a precisely controlled protective atmosphere. This atmosphere, typically hydrogen, nitrogen, or a mixture, prevents any reaction between the metal surface and oxygen or other reactive gases at high temperatures, thus preserving the material's bright and clean finish. The furnace chamber is designed to provide excellent temperature uniformity, ensuring that all parts of the load are heated evenly. After reaching the desired temperature and holding time, the components are cooled within the same protective atmosphere, preventing oxidation during the cooling phase. This process is crucial for achieving specific metallurgical properties while maintaining the aesthetic and functional integrity of the surface, making it indispensable for industries requiring high-quality, clean metal parts.
Process Flow
Loading & Sealing
Components are loaded into the box furnace chamber, and the door is sealed to create an airtight environment.
Purging & Atmosphere Introduction
The chamber is purged with inert gas to remove air, followed by the introduction of the desired protective atmosphere.
Heating & Soaking
The furnace heats the components to the target temperature, maintaining uniformity for the specified soaking period.
Controlled Cooling & Unloading
Components are cooled within the protective atmosphere before the chamber is opened for unloading.
Solving Customer Pain Points
Surface Oxidation & Discoloration
Our box type furnaces eliminate oxidation and discoloration by processing components in a precisely controlled protective atmosphere, ensuring a consistently bright and clean surface finish.
Inconsistent Material Properties
Superior temperature uniformity and atmosphere circulation within the box chamber guarantee consistent heating and cooling, leading to uniform metallurgical properties across all parts.
High Post-Processing Costs
By delivering a ready-to-use bright finish, our furnaces significantly reduce or eliminate the need for expensive and time-consuming post-treatment processes like pickling, grinding, or polishing.
Atmosphere Leakage & Gas Consumption
Robust sealing mechanisms and efficient gas management systems minimize atmosphere leakage, optimizing gas consumption and ensuring a stable, cost-effective protective environment.
Limited Flexibility for Diverse Batch Sizes
The versatile box-type design accommodates a wide range of part sizes and shapes, offering high flexibility for various batch processing needs and production demands.
Environmental Concerns from Chemical Cleaning
By preventing oxidation, our furnaces reduce reliance on chemical cleaning processes, offering a more environmentally friendly and safer heat treatment solution with fewer hazardous waste byproducts.
Customer Success Story
A major automotive parts supplier implemented our box type bright heat treatment furnace for their critical engine components. They reported a 25% increase in production efficiency due to reduced post-treatment steps and a noticeable improvement in the aesthetic quality of their parts. The precise atmosphere control also helped them meet stringent industry standards for surface integrity.
Customization & Support
We offer extensive customization options for furnace size, atmosphere type, and control features to perfectly match your specific bright heat treatment requirements. Our expert team provides comprehensive support from initial design and installation to operator training and ongoing maintenance, ensuring optimal performance and longevity of your box type bright heat treatment furnace.
Related Keywords
box type bright heat treatment furnace, bright annealing, non-oxidizing heat treatment, batch furnace, protective atmosphere furnace, metal annealing, stainless steel annealing, copper annealing, hydrogen atmosphere furnace, inert gas annealing, clean surface heat treatment, controlled atmosphere furnace
Box Type Bright Heat Treatment Furnace & Oven Technical Documentation
Working Principle
The sealed chamber design employs triple-layer insulation with integrated gas diffusion channels. High-purity nitrogen curtains form oxygen barriers at entry/exits, while internal recirculation fans maintain ±8°C temperature uniformity. The key innovation lies in dynamic atmosphere control where hydrogen partial pressure is auto-adjusted according to real-time dew point monitoring, achieving oxide-free surfaces without carburization.
Process Characteristics
- Decarburization-Free Hardening: Prevents carbon loss during austenitization through hydrogen-carbon equilibrium control
- Zero-Scaling Cooling: Proprietary gas quenching with turbulence control replaces oil quenching
- Multi-Material Compatibility: Processes stainless steels, copper alloys, and engineering ceramics in single batches
Technology-Industry Nexus
This furnace eliminates post-machining grinding operations in precision industries, reducing part rejection rates by 45%. Its compact footprint enables integration into just-in-time manufacturing cells, cutting logistics costs by 30% compared to tunnel furnaces.
Industrial Applications
- Cutting Tools: Carbide drill bits extending service life by 2.3x
- Optoelectronics: Laser housing components with reflective surfaces
- Semiconductor: Etching chamber fixtures resisting plasma erosion
Structural features:
Adopting double-layer shell structure, equipped with air-cooling system, which makes the temperature of the shell surface less than 60 degrees.
The furnace chamber material adopts high-purity alumina polycrystalline fiber, which is durable for heat preservation and 50% energy saving.
The heating element adopts high resistance alloy wire 0Cr27AI7Mo2, the heating temperature can reach 1200℃.
Furnace door for the left side open type, with open door power off, over-temperature alarm, leakage protection and other operations.
Intelligent temperature control system, with PID regulation, self-tuning function, and can be programmed to 30 segments of the temperature program; temperature control accuracy ± 1C.
The oven is equipped with 485 conversion interface, which can realize the connection with computer. Through the special computer control system to complete a single or multiple electric furnace remote control, real-time tracking, history records, output reports and other functions.
Temperature control mode: Intelligent 30-segment programmable control (users can choose the LCD touch screen display)
Constant temperature precision: ± 1 ℃ heating rate: 0 ~ 20 ℃ / min temperature control protection: with ultra-temperature and broken coupling protection function.
APPLICATIONS
It is widely used in the production and experiment of sintering under inert atmosphere in the fields of electronic ceramics, metallurgy, electronics, glass, chemical industry, machinery, crystals, powder metallurgy, nano-materials, metal parts, electronic components, refractory materials, new materials, powder materials, special materials, building materials and so on.
Technical Parameters
Equipment name: 1700 degrees atmosphere furnace
Equipment Model: MXQ1700-30
Heating size: depth 200*width 150*height 150mm
Furnace chamber volume: 4.5L
Temperature: 1700 degrees (1 hour)
Working temperature: ≤1600 degrees (continuous)
Working power supply: single-phase 220V 50/60Hz5Kw
Heating
Heating element: silicon molybdenum rod, left and right side heating
Heating rate: 20℃/min
Temperature measurement
Measuring element: B-type thermocouple
Temperature control
Temperature control instrument: digital display instrument, intelligent 30-segment PID programmable control.
Temperature control accuracy: ± 1 ℃, over-temperature alarm
Thermal insulation
Thermal insulation material: polycrystalline alumina fiber material, good thermal insulation effect, less heat loss.
Atmosphere: inert atmosphere environment, such as nitrogen, argon and so on.
Water-cooling: Furnace door ring water-cooled area, effectively delaying the aging speed of the sealing ring.
Vacuum: -0.04MPa
Gas pressure: 0.02MPa
