Introduction to Double ended annealing furnace, forging furnace advantages, characteristics and principles

Double ended annealing furnaceIt is an important heating equipment before metal forging. It uses natural gas as fuel to heat metal materials through high-temperature flame and smoke generated by combustion to meet the requirements of forging process.，The overall structural design is simple, diverse and beautiful.，generally, it is composed of ventilation system, Radiation chamber, furnace chamber, recovery of waste heat, ventilation system and other major components。

1、Brief introduction of Double ended annealing furnace

Double ended annealing furnaceIt is a kind of equipment which uses gas as fuel and is specially used for heating metal before forging.，Heat of combustion based on fuel. Natural gas is sprayed from the burner, mixed with combustion-supporting air and burned to produce high-temperature flame and smoke. These high-temperature flames and smoke transfer heat to the metal materials in the furnace by radiation and convection, so that they gradually heat up to the temperature required for forging.，the advantage is Efficient combustion and waste heat recovery system can significantly reduce energy consumption, thus reducing operating costs.、Natural gas is mainly used as fuel, but some equipment also supports other types of gas or liquid fuel, which has strong fuel adaptability.、The user interface is friendly, and the operator is easy to use. At the same time, the equipment also has the function of fault diagnosis and alarm, which can find and deal with abnormal situations in time.、It can improve the plasticity and fluidity of metal materials, reduce the difficulty and cost of forging, and improve product quality and production efficiency.、Using regenerative combustion system or advanced burner design can realize the uniform distribution of temperature in the furnace, ensure the uniform heating of metal materials and improve product quality.，the main features are energy saving and environmental protection, Strong adaptability, Easy to control, energy-efficient and Easy to maintain，is a popular Double ended annealing furnace。

Double ended annealing furnace

2、Introduction of Double ended annealing furnace characteristics

Double ended annealing furnace has the following characteristics

1. Strong adaptability

The Double ended annealing furnace is suitable for forging and heating of various metal materials and has a wide range of applications.

2. Easy to maintain

The structural design of the Double ended annealing furnace is reasonable and easy to maintain, which reduces the operating cost and failure rate of the equipment.

3. Easy to control

By adjusting the burner and ventilation system, the temperature and atmosphere in the furnace can be accurately controlled to meet the heating requirements of different metal materials.

4. Stable and reliable

The Double ended annealing furnace has a stable combustion system and temperature control system, which can ensure the uniformity and stability of the temperature in the furnace, thus improving the quality and production efficiency of forged products.

5. energy saving and environmental protection

As a clean energy source, natural gas produces less pollutants after combustion, which is beneficial to environmental protection. At the same time, the application of waste heat recovery system further improves the energy utilization efficiency.

Double ended annealing furnace

3、Advantages of Double ended annealing furnace principle

Double ended annealing furnacein the course of work,The high-temperature flame and flue gas generated when the fuel burns in the furnace are used as heat sources to heat the medium flowing in the tube to reach the specified process temperature. Fuel is ejected from the burner and burned, resulting in high-temperature flame and high-temperature flue gas. The high-temperature flame transfers heat to the furnace tube in the radiation chamber through radiation, and then to the medium in the furnace tube. The high-temperature flue gas enters the convection chamber of the heating furnace upward due to the suction force of the chimney or the action of the induced draft fan, and the heat is transferred to the furnace tube in the convection chamber by convection, and then to the medium in the furnace tube.，it has the functions of Casting heating, anneal, heat treatment, quench and hardening and tempering，is a common Double ended annealing furnace，it has the functions of normalizing, temper, heat treatment, anneal and Forging heating，reliable quality。

Double ended annealing furnace

4、Double ended annealing furnace application

Double ended annealing furnaces have the following purposes.

1. Metal melting and casting

Although it is mainly used for forging heating, some types of Double ended annealing furnaces can also be used in metal melting and casting processes. This is especially suitable for melting and casting of small or special alloys.

2. Improve production efficiency

The Double ended annealing furnace has the advantages of fast heating speed and accurate temperature control, which can improve production efficiency. This is especially important for mass-produced forging workshops.

3. Metal tempering

By properly heating and cooling the metal material, the Double ended annealing furnace can realize the quenching and tempering treatment of the metal. This is helpful to adjust the hardness and toughness of metal to meet the needs of different workpieces.

4. Energy conservation and environmental protection

The Double ended annealing furnace uses clean energy as fuel, which has lower emissions and higher energy efficiency than traditional coal-fired or oil-fired stoves. This is helpful to reduce environmental pollution and realize green production.

5. Metal heat treatment

In addition to forging heating, Double ended annealing furnaces can also be used for metal heat treatment processes, such as annealing and tempering. These processes can improve the microstructure and properties of metal materials, and improve their service life and mechanical properties.

Double ended annealing furnace

5、Structural characteristics of Double ended annealing furnace

The Double ended annealing furnace has the following structure

1. Radiation chamber

The heat load of the main place for Double ended annealing furnace heat exchange accounts for about 70%-80% of the whole furnace. The furnace tube in the radiation room conducts heat through flame or high-temperature flue gas, which is mainly radiant heat, so it is called radiation tube.

2. furnace chamber

A space for holding metallic materials for heating.

3. ventilation system

Ensure the gas flow in the furnace and maintain the stability of the atmosphere and temperature in the furnace.

4. Waste heat recovery system

Used to recover the exhaust heat of the heating furnace. There are two kinds of recovery methods, one is to recover by preheating combustion air, so that the recovered heat can return to the furnace again; The other is to use another recovery system to recover heat. The former is called air preheating mode, and the latter is usually called waste heat boiler mode.

5. convection chamber

The material is heated by convection heat transfer of high temperature flue gas discharged from the radiation chamber. Flue gas washes the tube wall of the furnace tube at a high speed to carry out effective convection heat transfer, and its heat load accounts for about 20%-30% of the whole furnace. The convection chamber is generally arranged above the radiation chamber, and some are placed on the ground alone. In order to improve the heat transfer effect, nail head tubes or finned tubes are often used in furnace tubes.

Double ended annealing furnace

6、Double ended annealing furnace principle

Double ended annealing furnaceat the start of the operation,Heat of combustion based on fuel. Natural gas is sprayed from the burner, mixed with combustion-supporting air and burned to produce high-temperature flame and smoke. These high-temperature flames and smoke transfer heat to the metal materials in the furnace by radiation and convection, so that they gradually heat up to the temperature required for forging.。

Double ended annealing furnace

Double ended annealing furnaceMainly used forMetal tempering,Energy conservation and environmental protection,Metal melting and casting,Improve production efficiency andMetal forging heating，the product looks atmospheric.，usually used in Machinery manufacturing, heat treatment, electron, shipping, surface treatment and other fields。