Our Factory Steel Processing Technology：

Release time:

2024-03-01

热轧Hot rolling：It is a rolling process performed above the recrystallization temperature of the metal. Specifically, a piece of steel billet undergoes several passes of rolling, trimming, and correction after heating, and finally becomes a steel plate.

冷轧Cold rolling：At normal temperature, hot rolled steel coils are used as raw materials, and the oxide scale is removed by pickling and then cold rolling is performed. The finished product is hard rolled coils.

热处理Heat Treatment：It refers to a metal thermal processing process that uses heating, insulation and cooling to obtain the expected structure and properties of the material in the solid state.

·正火Normalizing：It is a process of heating metal to a certain temperature (890-950℃), keeping it for a certain period of time, and then cooling it in the air. The purpose of normalizing is to improve the hardness, strength and wear resistance of metal and reduce internal stress.

·退火Annealing：It is to heat the steel plate to the appropriate temperature, adopt different holding times according to the size and thickness of the steel plate, and then slowly cool it (the cooling rate is the slowest). The purpose of annealing is to eliminate the internal stress generated during metal processing and reduce the hardness of the metal to facilitate subsequent processing and use.

·淬火Quenching：It is a process in which metal is heated to a certain temperature (700-920°C), maintained for a certain period of time, and then rapidly cooled. The purpose of quenching is to increase the hardness and strength of the metal and increase the wear resistance of the metal.

·回火Tempering：It is a process of heating metal to a certain temperature (650-700℃), maintaining it for a certain period of time, and then slowly cooling it. The purpose of tempering is to eliminate or reduce the internal stress generated during quenching and to make the hardness and strength of the metal moderate for subsequent processing and use.

冷拔Cold Drawn：It refers to drawing when the material is at room temperature in order to achieve a certain shape and certain mechanical properties. Compared with thermoforming, cold-drawn products have the advantages of high dimensional accuracy and good surface finish.

剥皮(Skinning)：Using turning, milling, planing and other machining methods to remove the layer of metal with defects on the surface is also called peeling.When producing alloy steel, it is necessary to use peeling method to eliminate surface defects of steel ingots or billets.

酸洗acid washing/ acid pickling：It refers to the method of using acid solution to remove scale and rust on the surface of steel. This step is usually used before and after cold rolling, hot-dip galvanizing, electroplating and other processes.

抛光Polishing：It refers to a processing method that uses mechanical, chemical or electrochemical effects to reduce the surface roughness of the workpiece to obtain a bright and smooth surface.

冷拉Cold Drawing；Cold Stretching：Under normal temperature conditions, the steel bars are forcibly stretched with a tensile stress exceeding the original yield point strength of the steel bars, causing plastic deformation of the steel bars to achieve the purpose of improving the yield point strength of the steel bars and saving steel.

Latest News

Our Factory Steel Processing Technology：

From iron ore mining to the production of final steel products. Different steel grades and product requirements may lead to differences in process flow. In response to different steel types and product needs, our factory will adjust steelmaking methods, rolling processes, heat treatment processes, etc. Here are some common variations:

2024-03-01

Global success: how our company's products have won over customers worldwide.

We are engaged in manufacturing steel products and international trade for many years. Main products being displayed: Stainless Steel/Carbon Steel/Galvanized Steel/Aluminium Steel Plates/Pipes/Steel Profiles/PPGI and PPGL.Etc

2024-02-20

Characteristics of copper material

Brass is an alloy composed of copper and zinc White copper is an alloy of copper and nickel Bronze is an alloy formed by copper and elements other than zinc and nickel, mainly including tin bronze, aluminum bronze, etc

2023-04-27

Why does stainless steel plate have corrosion resistance?

In order to make the production of stainless steel plates exceed the specifications, various raw materials must be prepared according to their proportions. The raw materials also go through many production and processing steps. During the production process of stainless steel plates, they will go through quenching and hot melting processes, so that the raw materials can maintain the necessary reliability and strength.