Based on the analysis of the conventional oval pass design of a stretch reducing mill and the design provided by W Germany9 a model of designing oval passes has been made by the expanding mathod and the program block diagram which shows pass design . Read More. Section Rolling Mill Steel Plantech.
11 cl, 5 dwg. The invention relates to a method of operation for reducing stretch-reducing rolling mill for rolling tubes of finite length, containing at least two rolling stands, which are located one behind the other in the feed direction of the pipe, with each rolling stands are at least two interacting roll, each of which at a certain ...
Roll Pass Design of Power Function Reduction Rate-based Stretch Reducing Mill Author(s): DING Wei, SUN Qiang, LIANG Haiquan, DING Hongjun, ZHAO Jie, WAN Bibo Pages: 28-32 Year: 2013 Issue: 6 Journal: Steel Pipe Keyword: ; ; ; ...
A roll pass design for the sets of rolls of a non-mandrel type multiple-stand pipe reducing mill, each set of rolls having three rolls. In order to improve the roll pass design so that the flow of material in the pipe is acted upon locally in such a way that the occurrence of local thickening of the pipe wall at critical points along the circumference of the pipe during reduction is decreased ...
Stretching, reducing on a tube or pipe mill. The principle of the stretch reducing process is analyzed and three models of pass design are established The simulations are done about variables, such as, stress, strain, the stretches between the stands, the size parameters of the steel tube, and the roll force parameters... Know More
Sep 01, 2006 INTRODUCTION The stretch reducing mill (SRM) is a high productivity process for hot finish-rolling seamless steel tubes of small diameter. ... The 2+4 EVO reducing and sizing mill uses a patented pass design. A reducing group with 2-Roll stands with high reduction is followed by a sizing group with 4-Roll stands with low reduction ...
Download Citation | Pass designing of stretch-reducing mill by elongation rate | When the traditional method based on the diameter-reducing rate, which does not take the wall thickness into ...
We discuss the roll pass design methods of stretch reducing mill, focusing on analyzing the oval pass and round pass design ideas, and based on previous research results, select the rolling force, rolling moment and the temperature drop models. We make use of basic language to write computer program in order to form the visual interface of ...
Stretching, reducing on a tube or pipe mill. The principle of the stretch reducing process is analyzed and three models of pass design are established The simulations are done about variables, such as, stress, strain, the stretches between the stands, the size parameters of the steel tube, and the roll force parameters...
pass design of stretch reducing mill pass design of stretch reducing mill As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, …
The principle of the stretch reducing process is analyzed and three models of pass design are established. The simulations are done about variables, such as, stress, strain, the stretches between the stands, the size parameters of the steel tube, and the roll force parameters. ... Computer Simulation System of Stretch Reducing Mill[J]. Acta ...
According to its product catalogues the system can automatically divide the pass series, formulate the rolling table and simulate the basic technological parameters in the stretch reducing process. All modules are integrated based on the developing environment of VB6. The system can draw the simulation curves and pass pictures.
A roll pass design for the sets of rolls of a non-mandrel type multiple-stand pipe reducing mill, each set of rolls having three rolls. In order to improve the roll pass design so that the flow of material in the pipe is acted upon locally in such a way that the occurrence of local thickening of the pipe wall at critical points along the circumference of the pipe during reduction is decreased ...
We discuss the roll pass design methods of stretch reducing mill, focusing on analyzing the oval pass and round pass design ideas, and based on previous research results, select the rolling force, rolling moment and the temperature drop models. We make use of basic language to write computer program in order to form the visual interface of ...
Application of optimized pass of a stretch. With the development of thermal power units,the market demand for high alloy high pressure boiler tubes was on the increaseAt the same time,the market requires advanced rolling technology and higher quality productsFor the problem of rolling marks,which appeared during rolling high pressure boiler tubes in Baosteel s 140 mm rolling …
The principle of the stretch reducing process is analyzed and three models of pass design are established. The simulations are done about variables, such as, stress, strain, the stretches between the stands, the size parameters of the steel tube, and the roll force parameters. According to its product catalogs the system can automatically divide the pass series, …
A roll pass design for the sets of rolls of a non-mandrel type multiple-stand pipe reducing mill, each set of rolls having three rolls. In order to improve the roll pass design so that the flow of material in the pipe is acted upon locally in such a way that the occurrence of local thickening of the pipe wall at critical points along the circumference of the pipe during reduction is decreased ...
11 Ways to Reduce Injection Molding Costs | Design Tip Here are 11 injection molding design considerations to stretch your manufacturing dollar: 1. Eliminate undercuts 2. Get rid of unnecessary features 3. Use a core cavity approach 4. Reduce cosmetic finishes and appearances 5. Design self-mating parts 6. Modify and reuse molds 7.
Computer Simulation System of Stretch Reducing Mill, - Know More. The principle of the stretch reducing process is analyzed and three models of pass design are established The simulations are done about variables, such as, stress, strain, the stretches between the stands, the size parameters of the steel tube, and the roll force parameters...
Elaborated in the paper are the development of the three-roll stretch reducing mill,and the commonly- used methods for roll pass design thereof. With the theory of pass design of power function reduction rate-based the stretch reducing mill,and the characteristics of the stretch reducing mill of the Φ168 mm PQF 3-roll mandrel mill plant,a package of roll passes of …
Understanding Rolling Process in Long Product Rolling Mill, Rolls and roll pass design, High tension can stretch reduce the cross section of the bar making shape control very difficult At the extreme, tension can pull the bar apart, creating a cobble...
G. Qing. On the base of finite element simulation for one stand of 152.5BR passes system in stretch-reducing mill, the distribution of equivalent plastic strain and tube wall thickness along the ...
Based on the analysis of the conventional oval pass design of a stretch reducing mill and the design provided by W Germany9 a model of designing oval passes has been made by the expanding mathod and the program block diagram which shows pass design . T91 .
A roll pass of a roll set having three rolls for a multi-stand mandrel-free stretch reducing mill has a roll pass shape that deviates from the circular. A tube is passed in its longitudinal direction through the non-circular roll pass shape enabling modification of a shape of a cross-section of the tube, so as to counteract the non-circular external diameter deviations of the tube.
Design methods of passes of rolls on tube stretch-reducing mill have been studied,and mathematical models for traditional pass,elliptical pass and circular pass of rolls have been built.With adoption of object-oriented programming and Visual Basic6.0 as integrated development environment,modularized structure is used for programming design.Traditional …
Tags Pickle Lines, Rolling Mills; Temper Pass or Skin Pass Rolling. Material can be reduced accurately while skin passing. Hot rolled steel coming from a steel mill or pickle line may need to be reduced 1% to 2% in thickness. This can be done on a coil-to-coil temper pass mill or in line on a cut-to length line.
2010 7 29 Roll pass design in continuous bar mills Roughing mill 28 Roughing mill I1 to C4 Intermediate or stretching mill C5 to C10 Finishing mill 21 Apr 09 Ansar Hussain Rizvi for steel rolls f = 0.8 1.05 0.0005t for cast iron rolls reducing a round into an oval pass is a apostri dimensional process apos implying that beyond the . Get Price
With the aid of commercially available software MSC SuperForm, a 3-D finite element model has been established to simulate the rolling process of steel tubes on the stretch reducing mill (SRM ...
The principle of the stretch reducing process is analyzed and three models of pass design are established. The simulations are done about variables, such as, stress, strain, the stretches between the stands, the size parameters of the steel tube, and the roll force parameters. ... stretch reducing mill (SRM) Recommended articles. Cited by (0)
the aid of commercially available software MSC.SuperForm, a 3-D finite element model has been established to simulate the rolling process of steel tubes on the stretch reducing mill (SRM) with group centralized differential drive in certain factories. A special effort was made to analyze the fluctuation of transverse wall thickness uniformity.