Analysis of elastic deformation of rolls

The main factors affecting the elastic deformation of the mill are: roll bending, plaque deformation, roll flattening, deformation of other parts and hydraulic cylinders and the compression deformation of the liquid in the cylinder, of which the first three accounted for the majority of the elasticity of the mill, and these three in the roll deformation accounted for the largest proportion of roll bending and roll flattening can be used to solve the theory of elastic deformation of the roll [ 1 , 10] - for the ordinary four-roll mill roll deformation made The following assumptions are made

2023-03-01

How to fix rollers the quick way

Roller with super adhesion, excellent compressive strength, wear resistance and corrosion resistance and other generalized functions, the use of polymer composite materials in the transmission part of the relatively small wear specification can be on-site non-disassembly correction,

2023-03-01

Analysis of the causes of broken rolls in rolling mills

First, brittle fracture, the shape of the fracture of such rolls is relatively flat, the fracture around the surface of the roll body is relatively flush; Second, the toughness of the fracture is mostly "mushroom head" shape, the roll body near the fracture are crushed into pieces.

2023-03-01

How are rolls categorized by material?

Roller according to the material is mainly divided into cast iron rolls, cast steel rolls and forged steel rolls three categories. Among them, the carbon content of cast iron rolls in 2. 50/0 ~ 3.5% or so, according to the main material can be divided into cold cast iron rolls, unlimited cold cast iron rolls, high chromium cast iron rolls and ductile iron rolls four categories. Cast iron rolls in the common organization can be divided into the matrix, carburizing body, graphite three categories, the matrix organization is mainly austenite, ferrite, pearlite, bainite and martensite, graphite in the cast iron in the form of general flake and spherical two.

2023-03-01

Development of high speed steel rolls

Typical high-speed steel roll metallurgical organization, by the martensite (or bainite) matrix plus high hardness MC, M2C, M6C and M7C3 and other types of carbides. Domestic research and application of high-speed steel rolls have also been reported, the General Research Institute of Iron and Steel in China took the lead in the development of high-speed steel rolls,

2023-03-01

China's roll product structure still needs to be optimized

Over the years, China's roll manufacturing industry has experienced the introduction of rolling mill to develop supporting rolls, the realization of roll manufacturing localization, batch export of high-end rolls and other stages of development, has formed a complete roll manufacturing system, to become big country of roll manufacturing, and fostered the world's first roll production capacity of Sinosteel Xingji and a number of specialization advantages of the relatively obvious roll manufacturing enterprises.

2023-03-01