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Technical Info.
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Development of Tension Leveler for Advanced High-Strength Steel
The production of advanced high-strength steel (AHSS) requires rapid cooling, which results in undesirable flatness and/or excessive residual stress of products. Those defects cause adverse effects to automobile production processes. Therefore, high-performance levelers are required for eliminating those defects. JP Steel Plantech Co. has developed a new tension leveler to meet market demands. This tension leveler has been operating since October 2014 with excellent performance to produce high-grade AHSS as expected with the customer’s satisfaction. This paper discusses the new tension leveler.
No. 2017-01
Date 2017/02
Event Iron & Steel Technology, Vol. 14, No. 2, February 2017- Product categories
- Rolling Mill – Flat Products
- Related products
- Tension Leveler
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New Rolling Method of Reversing Cold Rolling
A reversing cold rolling mill has been suffering from such drawbacks as unrolled portions necessarily produced in head and tail ends reduce yield, and time consuming works including removing of coils, threading of the strip and holding of the strip with the tension reel, which result in decreasing productivity.
There has been developed a new rolling method and facility (Zoom-Mill™, Zero-Oriented Off-gauge Minimization) that allows a leader strip and a product coil are connected using a spot welding machine and are finished through even-number passes in a reversing cold rolling mill. It is expected to reduce unrolled portions (improvement of yield) as well as improvement of productivity.
The first Zoom-Mill™ was put into practical use and commercial operation started in March 2010. This mill is working very well as intended initially, achieving approximately 1% improvement of product yield of the products immediately after commencement of operation.
Productivity of the mill was also sharply increased along quick learning curve.No. 2015-03
Date 2015/06
Event METEC & 2nd ESTAD 2015- Product categories
- Rolling Mill – Flat Products
- Related products
- Zoom-Mill™
- Cold Mill (TCM,CRM)
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Overview of Heat Treat Leveler for ArcelorMittal Burns Harbor
The New Heat Treat Leveler for ArcelorMittal Burns Harbor (AMBH) was installed as one of the key components of the modernization of the plate quenching /tempering facility and has been in operation since April 2012.
The design of the leveler is the 4th generation plate roller leveler (SuPerLevelerTM) which has the infinite rigidity control system and also has special feature to cover all the high tensile and heavy gauge products of heat treatment facility in Burns Harbor.
Herewith JP Steel Plantech Co. (SPCO) introduce the leveler as a machine builder.No. 2014-02
Date 2014/05
Event AISTech 2014- Product categories
- Rolling Mill – Flat Products
- Related products
- Plate Leveler
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New PL-TCM (Pickling and Tandem Cold Strip Mill) in Vietnam
Commercial operation of the PL-TCM for CSVC in Vietnam involving SPEOS™ technology to all 6-Hi stands has started up successfully in November 2013.
The descriptions as shown on this paper are the outline and technical high-lights of the PL-TCM.No. 2014-01
Date 2014/05
Event AISTech 2014- Product categories
- Rolling Mill – Flat Products
- Related products
- Cold Mill (TCM,CRM)
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The Latest Technology of the Heavy Plate Leveler
A new heavy plate leveller which had the rigidity infinity function called the fourth generation was developed. The bend of the roll caused by compression and the length expansion of the column bend, are measured, are calculated, and this leveller is corrected with the oil pressure cylinder promptly and dynamically. As a result, the following were achieved.
- Expansion of range of correction: 20mm-37mm in case of X80(YS600MPa)
- Smoothness of high level: 1/4 of standard values
- Decrease of residual stress: 1/3 of residual stresses of leveller in the pastNo. 2012-07
Date 2012/10
Event Association of Brazilian Metallurgy, Materials and Mining 49th Rolling Seminar- Product categories
- Rolling Mill – Flat Products
- Related products
- Plate Leveler
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The Latest Technology of the Heavy Plate Leveler
Heavy plate leveller’s development phase is classified at the fourth generation, and it introduces the feature of the fourth generation in which the fault of the 1-3th generation is overcome.
- Roll gap setting accuracy of high accuracy
- The range that can be corrected is greatly expanded.
- Smoothness of high level (1/4 of ASTM demand values)
- It succeeds in the strong reduction of the residual stress.No. 2012-06
Date 2012/09
Event Asia Steel 2012- Product categories
- Rolling Mill – Flat Products
- Related products
- Plate Leveler
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Superior Profile Control Technology with Edge-oriented Shifting
n this paper, it introduces the newly developed changeable roll crown technology called SPEOS™(Superior Profile Control Technology with Edge-oriented Shifting ). This technology can do the board crown control and the edge drop control at the same time by a pair of roll shift.
No. 2012-03
Date 2012/05
Event AIS Tech 2012- Product categories
- Rolling Mill – Flat Products
- Related products
- Cold Mill (TCM,CRM)
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New Rolling Method Of Reversing Cold Rolling Mill
It introduces new rolling method (Zoom-Mill™,Zero-oriented off- gauge minimaization) of aiming at the improvement of production according to a decrease in the unrolling part and it with a leader strip and a spot welding machine.
No. 2012-02
Date 2012/05
Event AIS Tech 2012- Product categories
- Rolling Mill – Flat Products
- Related products
- Zoom-Mill™
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The Latest Technology of the heavy Plate Leveler
Heavy plate leveller’s development phase is classified at the fourth generation, and it introduces the feature of the fourth generation in which the fault of the 1-3th generation is overcome.
1. Roll gap setting accuracy of high accuracy
2. The range that can be corrected is greatly expanded.
3. Smoothness of high level (1/4 of ASTM demand values)
4. It succeeds in the strong reduction of the residual stress.No. 2011-02
Date 2011/05
Event AIS Tech 2011- Product categories
- Rolling Mill – Flat Products
- Related products
- Plate Leveler
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The Latest Technology of Trends in Skin pass mill and Tension Leveler
Products produced at hot rolling mills and a cold rolling mills in recent years are diversified. It introduces a recent thermal refining, the surface properties adjustment, and the smooth correction technology through various skin pass mills and tension leveller’s delivery results.
No. 2011-01
Date 2011/05
Event AIS Tech 2011- Product categories
- Rolling Mill – Flat Products
- Related products
- Temper / Skin Pass Mills
- Tension Leveler