Tube billet piercing process

2025-05-12

Piercing is the first process in the deformation of hot-rolled seamless steel pipes, and its function is to Pierce solid tube billets into hollow rough tubes. Due to the fact that the surface defects or eccentricity (uneven wal...

Analysis of 28 Steel Defects and Common Terms

2025-05-12

Analysis of Steel Defects and Common Terms Roundness: For circular cross-sections of rolled materials, such as round steel and round steel pipes, the diameters in all directions are not equal. 2. Incorrect shape: The cr...

Ten Basic Questions about Steel Rolling

2025-05-12

The problems existing in hole-free rolling and the solutions are as follows:   The stability issue of rolled pieces. Due to the fact that hole-free rolling is not restricted by the side walls of the hole, it is pro...

What are the processes of aluminum alloy processing?

2025-04-09

The density of pure aluminum is small, about 1/3 of iron, low melting point, aluminum is face-centered cubic structure, so it has high plasticity, easy to process, can be made into a variety of profiles, plates, good corrosion ...

Analysis and research on damage causes of cold rolling roll bearing

2025-04-09

Abstract: In this paper, the characteristics and common failure phenomena of cold rolling roll bearings are introduced, and the reasons for their failure are emphatically studied.   Key words: cold roll bearing; Ca...

Talk about roll selection

2025-04-09

What aspects should be considered in the selection of roller materials   Roll is an important component that determines the efficiency of the rolling mill and the quality of the rolling material. It is an important...

The invention relates to a warm rolling method for preparing titanium/steel composite plate

2025-03-12

The titanium/steel composite plate composed of titanium plate and steel plate in a layered manner not only has the excellent corrosion resistance of titanium, but also has the advantages of high strength and low cost of steel, ...

Key points of cutting rolling material type control and guide and guard adjustment!

2025-03-12

1, material type control points   1, the quality of the incoming material is good, the difference between the upper and lower sides is controlled within 2mm, and the incoming material of the 7# machine avoids the p...

The role and size of cold rolling tension are determined

2025-03-12

1, the role of tension The function of tension is to reduce the unit pressure, so that the stress state in the deformation zone changes, and the longitudinal compressive stress is reduced, so that the unit pressure is reduc...

Hot rolling force ratio mode load distribution method

2025-02-13

Abstract: Whether the load distribution of each stand in finishing mill group is reasonable or not directly affects the load bearing capacity of the whole unit and the stability of strip rolling process, and also directly affec...

Plate shape and cold-rolled plate shape control

2025-02-13

What is plate shape The so-called plate shape is the flatness of the fingerboard belt. Intuitively speaking, the plate is placed between two ideal plates, if the two sides of the plate and the plate 100% contact, it is cons...

Principle of medium and thick plate hot straightener

2025-01-09

The hot straightener of medium and thick plate is a mechanical equipment used for straightening medium and thick plate. The principle is to use the plasticity of the metal sheet at high temperature, by applying a certain pressu...