The working principle and method of induction annealing machine

  The working principle and method of induction annealing machine

Annealing is a process of heating the workpiece to a certain temperature, then holding it for a period of time, and slowly cooling it. Simply put, it is a heat treatment process for materials. The purpose of induction heating equipment is to soften the material or workpiece after welding, forging, casting or cutting, improve toughness and plasticity, homogenize chemical composition, eliminate residual stress, or obtain desired physical properties.

 

1. Graphitization annealing

 

Induction heating equipment is used to turn cast iron containing a lot of cementite into malleable cast iron with good plasticity.

 

Second, spheroidizing annealing

 

It is used to reduce the high hardness of bearing steel and tool steel after forging.

 

3. Recrystallization annealing

 

It is used to eliminate the hardening phenomenon of metal wires and sheets in the process of cold rolling and cold drawing. Eliminate the effect of work hardening to soften the metal.

4. Diffusion Annealing

 

Improve the performance of induction heating equipment to homogenize the chemical composition of alloy castings.

 

5. Isothermal annealing

 

It is used to reduce the high hardness of some alloy structural steels with relatively high chromium and nickel content for cutting.

 

6. Complete annealing

 

Coarse superheated structure with poor mechanical properties after welding, forging and casting with low carbon steel.

 

Seven, stress relief annealing

 

It is used to relieve the internal stress of welded parts and their steel castings.

 

Induction heat treatment annealing is an annealing that utilizes the heat generated by the passage of an induced current through the workpiece. This process has the characteristics of fast heating speed and short annealing process cycle. It is often used for rapid spheroidizing annealing of non-alloy steel, alloy tool steel, bearing steel, etc. with small cross-section.

 

The heating temperature of induction heating rapid spheroidizing annealing is less than Acm, which is close to the lower limit of quenching temperature and is kept for a short time, and there are a lot of undissolved carbides in the austenite; the heating rate is determined by the unit power; the isothermal temperature is determined by the hardness requirements; the holding time is based on Determined from the isothermal transition diagrams measured after induction heating.

 

Modern induction annealing uses induction heating annealing production lines to anneal materials such as bearing steel, spring steel, strip steel, cold-rolled ribbed steel bars and aluminum tubes.

 

Induction heating annealing is widely used in steel pipe weld annealing, recrystallization annealing of workpieces after cold heading and cold drawing, and some workpieces that require local annealing after carburizing, such as motorcycle connecting rods, threaded parts on spline shafts, etc. The annealing of the steel pipe weld can refine the coarse and uneven grains of the weld; the annealing of cold heading and cold drawn workpieces can restore the elongated grains to small and uniform grains; local annealing of carburized parts (such as thread part), etc., mainly to reduce the hardness of the part and improve its toughness.

评论

发表评论

此博客中的热门博文

The Evolution of Cutting Technology

图片
 In the world of crafting and manufacturing, precision and efficiency are paramount. As the demand for high-quality products continues to rise, so does the need for advanced cutting technology. Among the leaders in this field is China, a country renowned for its innovative machinery, including die cutting machines and cutting machines that cater to a variety of industries. In this blog, we will explore the evolution of these machines, the offerings from companies like MK, and how they compare to popular crafting tools like the Cricut Explore 3. The Rise of Die Cutting Machines in China China has established itself as a powerhouse in the manufacturing of cutting machines, particularly die cutting machines. These machines are essential for industries ranging from packaging to textiles, allowing for precise cuts in various materials. The die cutting process involves using a die to cut shapes from materials such as paper, cardboard, and vinyl, making it an invaluable tool for both indu...
阅读全文

How does a palletizer machine work?

图片
  Introduction Palletizer machines  have become integral components in modern manufacturing and distribution facilities, streamlining the handling and storage of products. These automated devices take the labor-intensive task of stacking and organizing goods onto pallets, significantly improving efficiency, accuracy, and overall productivity. In this article, we will delve into the inner workings of palletizer machines, explaining how they operate and the various types and benefits they offer to industries. Understanding the Basics of Palletizing Palletizing is a crucial step in the supply chain process, whether it's in manufacturing, warehousing, or distribution. The primary goal of palletizing is to organize products onto pallets for storage, transportation, or shipment. Traditional manual palletizing is labor-intensive and prone to errors, leading to inconsistencies in the arrangement, increased workplace injuries, and slower throughput. Palletizer machines offer a solution...
阅读全文

PE Jaw Crusher vs. PEX Jaw Crusher: Which is Right for You?

图片
 Choosing the right crusher for your mining or construction project can be a daunting task. Two common types of crushers are the  PE jaw crusher ​ and the PEX jaw crusher. While both are designed to reduce the size of materials, they have distinct characteristics and applications. Let's delve into the key differences between these two types of crushers. Structure and Working Principle PE Jaw Crusher:  The PE jaw crusher features a fixed jaw and a swinging jaw, which move towards each other to crush material. The crushing chamber is typically V-shaped, and the material is compressed and crushed between the jaws. PEX Jaw Crusher:  The PEX jaw crusher is a more advanced design that incorporates a laminated plate and a toggle plate. This design allows for a larger crushing chamber and a more efficient crushing process. Applications PE Jaw Crusher:  PE jaw crushers are primarily used for primary crushing of hard and abrasive materials, such as rocks, ores, and c...
阅读全文