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How to choose cast iron rolls to meet our requirements

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How to choose cast iron rolls to meet our requirements

  • Time of issue:2022-06-14 11:34

How to choose cast iron rolls to meet our requirements

  • Time of issue:2022-06-14 11:34
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 How to choose cast iron rolls to meet our requirements?

 Cast iron rolls will generate residual stress and thermal stress during production and preparation before use. Applications are also subject to various cyclic stresses including bending, deformation, shear, contact stress and thermal stress. Let cast iron roll manufacturers tell you h ow to choose cast iron rolls to meet our requirements.

  The stress distribution of cast iron rolls along the roll body is uneven and constantly changing. The reason is not only the planning factor, but also the wear of the roll in use, the constant change of temperature and roll shape. In addition, rolling conditions are often not normal. Improper cooling of rolls after use can also be damaged by thermal stress. Therefore, in addition to wear, the rollers often have various local hazards and surface hazards, such as cracks, breaks, falling off, indentations, etc. For a good roll, its performance indicators such as strength and wear resistance should have a good match. This is not only durable under normal rolling conditions, but also less harmful under some abnormal rolling conditions.Therefore, when manufacturing rolls, strictly control the metallurgical quality of the rolls or supplement external measures to enhance the bearing capacity of the rolls.

  The type of rolled steel is the key factor in selecting cast iron rolls, and its deformation resistance varies with the chemical composition of the billet, mainly manifested in the deformation load and changes in each rolling stage. Rollers are selected according to their determined strength and hardness.

  In addition, the cast iron roll factory with talents is trustworthy. Because of the selection and layout of the rolling mill type, the selection of the raw material of the roll and the determination of the roll size have a great influence on the quality of the cast iron roll. Facing the rapid development of the iron and steel industry, my country's roll manufacturing enterprises continue to increase capital investment planning and speed up the pace of skill transformation. The transformation of equipment has greatly improved the internal quality of my country's rolls, and directly promoted the progress of cast iron roll manufacturing technology. At present, centrifugal composite casting technology has become an advanced technology widely used by roll manufacturing enterprises in my country.

  In order to shorten the production cycle and improve the performance of cast iron rolls, heat treatment has become the core skill for cast iron roll manufacturers to improve their market competitiveness. Among them, ladle refining electroslag remelting, electroslag ingot forging molding skills triple molten steel training skills, dual frequency quenching, liquid nitrogen cryogenic treatment, high and low temperature tempering and other internationally advanced advanced heat treatment skills have been well applied in the manufacture of cast iron rolls.

  It is important to understand the types and characteristics of various cast iron rolls that are in sufficient demand before choosing the right cast iron rolls to improve yield and product quality. Only in this way can we choose the right product. We are a manufacturer of cast iron rolls , if you want to know more about this, please contact us.

 

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Lianqiang metallurgical roll

Add: No. 8 Guofeng Street, Fengnan District, Tangshan City, Hebei Add: Liucheng Economic Development Zone, Chaoyang City, Liaoning Province
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E-mail: sales@lianqiang.com

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