Brief introduction

Bright annealing furnace is a metal heat treatment process, which refers to heating the metal slowly to temperature, holding it for a sufficient period of time, and then cooling it at a suitable rate. The purpose is to reduce the hardness, improve the cutting and machinability; eliminate residual stress, stabilize the size, reduce the deformation and cracking tendency; refine the grain, adjust the organization, eliminate organizational defects.

The purpose of annealing is to make the casting, forging, welding or cutting materials or workpieces soften, improve the plasticity and toughness, so that the chemical composition of the uniformity, the removal of residual stress, or to get the expected physical properties.

Annealing process with the purpose of a variety of different and, such as recrystallization annealing, isothermal annealing, uniform annealing, spheroidal annealing, stress relief annealing, recrystallization annealing, as well as stabilized annealing, magnetic field annealing and so on.

The skeleton of annealing furnace is welded by all kinds of steel sections, the outer frame is made of channel steel as the main beam, the peripheral plate is made of cold thin plate, the cart is made of channel steel as the main beam, the bottom plate and the front and rear end plates are made of center plate.

Principle:

The material to be annealed is placed in the inner cover with protective atmosphere, and the temperature is raised and lowered by electric heating or gas or fuel oil to the material according to the specified process curve, so as to achieve the purpose of bright annealing. The furnace is currently advanced industrialized production of mainstream furnace.

Application:

Shroud type bright annealing furnace can be widely used for bright annealing of non-ferrous metals copper, aluminum alloy and ferrous metals, plain carbon steel, silicon steel, alloy steel and other coils and strips, coils and tubes, wires and other bright annealing.

Metallic materials are heated to the appropriate temperature, maintained for a period of time, and then slowly cooled heat treatment process. Common annealing processes are: recrystallization annealing, stress relief annealing, spheroidizing annealing, annealing and so on. The purpose of annealing: mainly to reduce the hardness of metal materials, improve plasticity, in order to facilitate cutting or pressure machining, reduce residual stress, improve the organization and composition of the homogenization, or for the latter heat treatment to make good preparation for the organization and so on.

This equipment can be widely used for bright annealing of non-ferrous metals such as copper, aluminum alloy and ferrous metals, plain carbon steel, silicon steel, alloy steel and other coils and strips, coils and tubes, wire rods and so on. Strong convection bell-type bright annealing furnace has the advantages of high production efficiency, good product quality, low energy consumption, automatic operation, reliability, etc. It is one of the contemporary advanced heat treatment equipment.

Bright annealing furnace is a kind of annealing furnace, its working principle is: the material to be annealed is placed in the built-in with protective atmosphere, and the material is heated electrically to raise and lower the temperature according to the specified process curve, so as to achieve the purpose of bright annealing. The furnace is currently advanced industrialized production of mainstream furnace.

The main features of bright annealing furnace:

1. The whole annealing process of the material is placed in a protective atmosphere, the surface of the annealed workpiece is bright and oxidation-free, the steel surface is not decarburized.

2. Due to the strong convection circulation of the protective gas in the furnace, the furnace temperature is uniform, so that the temperature difference between the materials in the furnace within ± 5 ℃; can effectively ensure that any position of the annealed material is soft and hard consistent, to facilitate deep processing of materials.

3. Adopting the quasi-continuous operation mode of heating and cooling with double furnace seats, the furnace structure is scientific and reasonable, the energy-saving effect is obvious, and the energy consumption per ton of steel is low; the single furnace capacity is up to 30 tons, and the production efficiency is high.

4. The surface of the material treated by this type of furnace is bright, eliminating the acid washing process, clean working environment, and eliminating acid pollution.

5. The whole set of equipment is controlled by microcomputer, with high degree of automation, which can effectively guarantee the product quality and equipment operation.

Scope of application of bright annealing furnace:

1. Ferrous metal steel strip, steel wire, steel pipe parts intermediate and finished bright annealing.

2. Non-ferrous metal copper belt, copper wire, copper pipe, copper bar intermediate and finished bright annealing.

3. Bright annealing of standard parts, chains, mechanical parts and other bulk parts.