What is the stand in rolling mill?
Rolling Mill Stands are used to control the outer diameter of the pipe during the elongation and diameter finishing processes. Mill Stands in rolling mills consist of several components and systems, all of which are subject to high temperatures, high loads and extreme conditions.
What is flat rolling process?
Flat rolling is the most basic form of rolling with the starting and ending material having a rectangular cross-section. The material is fed in between two rollers, called working rolls, that rotate in opposite directions.
What does a finishing mill do?
The final shaping stage of a hot rolling steel strip is normally performed on a tandem mill known as a finishing mil. Hot Strip Mill Group consists of two to six finishing mill stands, which reduce the thickness of the transfer bar to meet the customer demanded standard-sized or the next process.
What is Housingless stand?
The MWE mills stands are housingless mills stands. The rolls are mounted in: Tapered roller bearings for the radial adjustment of the rolls. Cylindrical roller radial bearings in combination with axial groove ball bearing.
What is a work roll chock?
The housing of a work roll or backup roll bearing is known as roll chock or simply chock. Chock is the basic part of a rolling mill. It is mounted in the window of the roll stand housing between the posts with a small clearness. The roll stand housing encloses and supports the chock assembly.
What is a mill finish frame?
Mill finish is the surface texture (or finish) of metal after it exits a rolling mill, extrusion die, or drawing processes, including sheet, bar, plate, or structural shapes. This texture is usually rough and lacks lustre; it may have spots of oxidation or contamination with mill oil.
What is bar rolling?
For hot-rolled bars, the bar rolling process layout scheme is mainly divided into continuous rolling and the semi-continuous rolling. 1.1 Semi-continuous Rolling. A two-roll reversing mill + continuous rolling mill (6 or 8)are arranged generally.
How are rolling mills classified?
Based upon the rolling process, rolling mills are classified as (i) reversing mill, (ii) semi continuous mills, (iii) continuous mills, and (iv) tandem mill. Reversing mills are those rolling mills in which the rolling direction changes after each pass.
What is a special type of rolling mill stand used for very high reduction from a slab to a strip in one pass?
Planetary Rolling Mill It is employed to reduce large thicknesses in a single pass of a steel strip. Its rolling capacity is higher than a cluster machine but less than a tandem rolling machine.
What is bearing choke?
Bearing chock is an essential component to the fixed bearing, it is the major unit for the weight support and rolling bearing. It works continuously under the circumstance of low speed and heavy duty.
What are types of rolling mills?
Four Types of Rolling Mills
- Four-high rolling mill. A four high rolling mill is used for reducing material to minute thicknesses.
- Cluster rolling mill.
- Continuous Mill.
- Planetary Rolling Mill.
What is mill finish on steel?
What color is mill finish?
Mill finish is the natural finish that aluminum extrusions have as they emerge from the extruder die. It’s basically bare aluminum. Mill finish will oxidize with a light white powder (aluminum oxide) as it is exposed to air and moisture.
What is roll chock?
https://www.youtube.com/watch?v=_XBd7G8Wg7c