中文版 中文版  |   EnglishEnglish
搜索
Search

NEWS

/
/
/
Performance requirements for cast iron rolls

News

Performance requirements for cast iron rolls

  • Time of issue:2022-08-15 13:50

Performance requirements for cast iron rolls

  • Time of issue:2022-08-15 13:50
  • Views:
Information

Every thing has its value. In our daily life, there are many inseparable things and products. So in the industrial field, there are also many mechanical equipments that play their roles in different fields, and cast iron rolls are no exception. Let's talk about the performance requirements of cast iron rolls?

The thermal cracking resistance of cast iron rolls, generally speaking, strength and thermal cracking resistance are the main requirements for rough rolls; the weight of the work rolls of the small 20-roll mill is only about 100g, while the weight of the back-up rolls of the wide and thick plate mill exceeds 200 tons. When selecting rolls, the main material for safety bearings (cast iron, cast steel or forged steel of various grades) should be selected according to the basic strength requirements of the rolling mill for the rolls. Cast iron rolls have high hardness and high finishing roll speeds. The final rolled product has a certain surface quality, the main requirements of which are hardness, wear resistance, etc. Then consider the wear resistance of cast iron rolls when using them . Since the wear mechanism of the roll is very complex, including mechanical stress, thermal effect during rolling, cooling effect, chemical effect of the lubricating medium and other effects, there is no unified index to comprehensively evaluate the wear resistance of the roll. Since the hardness is easy to measure and can reflect the wear resistance under certain conditions, the radial hardness curve is usually used to approximate the wear resistance index of the roll. impact resistance. In addition, there are some special requirements for the rolls. For example, when the reduction is large, the cast iron roll is required to have a stronger bite ability, which is more resistant to impact;

When rolling thin-gauge products of cast iron rolls, the rigidity, uniformity of structure and performance, machining accuracy and surface finish of the rolls are strictly required; cutting performance, when rolling steel with complex cross-sections, the cutting performance of the working layer of the roll body should also be considered . When choosing cast iron rolls , some performance requirements of the rolls are often opposite, and the purchase and maintenance costs of cast iron rolls are very expensive. Therefore, we should fully weigh the advantages and disadvantages of technology and economy, and decide whether to use casting or forging, alloy or non-alloy, single material or composite material.

Here is a regular manufacturer, friends who want to order this product may wish to come here to choose. I believe it will not let you down. The prices here are reasonable and the quality is guaranteed. We have professional customer service here to answer the relevant professional knowledge for you. And there are many types of products, there is always one that suits you. Welcome everyone to buy.

 

There is currently no information to display
Please add data record on website background.
产品分类

Lianqiang metallurgical roll

Add: No. 8 Guofeng Street, Fengnan District, Tangshan City, Hebei Add: Liucheng Economic Development Zone, Chaoyang City, Liaoning Province
Phone:
13722533381
E-mail: sales@lianqiang.com

Domestic business contacts: Wang Lili, Xu Xiaoqian, Li Weikai
Mobile WeChat synchronization: 13333295129 19912326376 18731995853
Contact person for export business: Liu Zhuzhu
Mobile WeChat synchronization: 13832886863
Fax: 0315-8129356 8112576 0421-7021209

Lianqiang

 WeChat

Copyright ©Tangshan Lianqiang metallurgical roll Co., Ltd   冀ICP备08102597号   300.cn Tangshan

Copyright ©2021 Tangshan Lianqiang metallurgical roll Co., Ltd

冀ICP备08102597号   300.cn Tangshan