Heavy plate production

Heavy Plate Production

Heavy plate production is a complex process that consists of several steps and utilizes various pieces of technology and machinery. The purpose behind its manufacture is to create a large, solid plate of metal that can be used in a variety of industrial and commercial applications. The operations that take place during this process can range from hot rolling, to cold rolling, to annealing.

Heavy plate production begins with a coil of hot-rolled metal. This metal is typically heated at a high temperature, usually between 1000 and 1300 degrees Celsius. The hot metal is then rolled into a flat sheet, reducing its thickness and adding to its surface area. This rolling process is done by passing the metal through several sets of powered, interlocking rolls. The force of this rolling is controlled to ensure that the flat sheet maintains its consistent quality and uniformity.

Next, the sheet is put through cold rolling. This step serves to place the metal into a more durable and sable condition, ready for its next task. To reduce the sheets thickness even further, the metal is passed through a series of rollers and cooled even further. This cold rolling not only makes the metal stronger, but also provides it with a particular smoothness and shine.

Once cold rolled, the sheet is placed in an annealing furnace, which serves to heat the steel back to its original temperature. This heating softens the metal, allowing it to cooled and drawn into a plate of desired thickness. This annealing process also makes the plate completely uniform in size and shape.

Finally, the plate is sent through a tempering process where it is heated to a high temperature and then cooled slowly. This helps to ensure the metals internal and structural integrity, making it ready for its intended use.

Heavy plate production is a complicated and intricate process, utilizing a range of technologies and practices to produce a highly refined finished product. This product is used in the heavy industry, typically in construction and engineering projects, to create products of superior strength and durability. With its dependability, strength, and efficiency, heavy plate production is an important part of the industrial landscape.

Thick plate production

Thick plate production is a process used for producing thick plates by hot rolling and cold rolling. The thickness of rolling plates is generally over 6mm, and the production capacity of a rolling mill is generally over 6 million tons. It is the main process for producing thick plates from raw materials. The hot rolled thick plate production process includes:

1.Raw material preheating: The raw materials for thick plate production are subjected to uniaxial preheating in the furnaces. Generally, the preheating temperature is 550-700°C. The purpose of preheating is to reduce the chemical composition and thermal stress of thick plate production.

2.Rolling process: The preheating material enters the rolling mill and is then rolled in the rolling mill. The production of thick plates requires a large linear velocity, and both the roughing and finishing stands are equipped with reversing rolls. During rolling, the thickness of the rolled plate is constantly changing, and the rolling speed at each end of the plate is also different.

3.Cooling and recoiling: After the rolling process, the rolled plate need to be cooled to a temperature suitable for recoiling. During the cooling process, the shape of the rolled plate is maintained by inserting a cooling roller or jigging device, and gradually cooled down to the recoiling temperature.

4.Cutting: After the thick plate has been recoiled, it will then be cut according to customer needs. The cutting process is usually carried out with a shearing machine, and finished products that meet the customers requirements are achieved.

Through the above processes, the hot rolled thick plate can be successfully produced and delivered to customers. The production of thick plates has high requirements on the quality of raw materials, production processes and equipment, so the whole production process must be strictly controlled to ensure product quality.