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Temper /
Skin Pass Mills

The device uses skin pass rolling to improve the mechanical properties and surface texture, and improve flatness, in order to form materials such as hot-rolled steel sheets, cold-rolled steel sheets, stainless steel plates, and aluminum plates into final products. Since it conducted tests with its own test equipment in 1965, Steel Plantech has continued to develop theories and deliver actual devices. As a result, the company has delivered 63 skin pass mills worldwide up to this point in time.

News List

14. Jun, 2016
Start of Commercial Operations of Hot Skin Pass Mill Line and Super Cold Plate Leveler at Dangjin Plant of Hyundai Steel Company

References

since 1970 63 devices

Supplied To Country Quantity Start Up
  • Asia・Oceania
  • individual companies Japan 20 devices
  • POSCO, etc. Korea 10 devices
  • Baoshan Iron & Steel, etc. China 9 devices
  • China Steel (CSC), etc. Taiwan 8 devices
  • Australia 3 devices
  • Thailand, Vietnam, and other parts of Southeast Asia 5 devices
  • India 3 devices
  • North America
  • North American Stainless USA 2 devices 2002,2000
  • National Steel USA 1 device 2000
  • South America
  • CSN Brazil 3 devices 1998,1982,1981
  • Europe・Middle East
  • TK-AST Itary 2002
  • Acerinox Spain 1999

Technical Information

Combined skin pass mill and tension leveler technology

By combining the skin pass mill with the tension leveler, our greatest specialty, the skin pass mill can fulfill the role of improving mechanical properties and improving surface texture, and the tension leveler can improve plate flatness, thereby achieving an efficient division of roles.   When the devices are combined, careful attention must be given when determining the positioning of the front, rear, and center bridle rolls, the number of rolls, and the motor capacity, and when proposing an operation method. JP Steel Plantech has a track record of delivering 45 combined skin pass mill and tension leveler systems, and has the ability to propose the optimum solutions to our customers.

Inline stainless steel skin pass mill technology

In recent years, because of the advantages of simplifying processing with offline skin pass mills and high-tension skin pass mill rolling, it has been a common practice to install skin pass mills on the exit side of stainless steel APL/BAL.
In the case of stainless steel in particular, materials and rolls are easily damaged, so it is necessary to move the skin pass mill past welded points without causing damage during operation.
To achieve this, JP Steel Plantech utilizes its technology to move items past welded points during operation, and have a significant track record of delivery.

Bridle roll mechanical drive technology enabling high-precision elongation control

This drive mechanism utilizes differential gear reduction and 2 motors (main motor and elongation motor) to provide elongation control which has a degree of precision between 30 and 50 times that of an individual drive.
The precision of the rotational speed of motors has improved recently, but this technology is being used in production lines that require stable elongation control.