Title of Invention	METHOD OF INCREASING THE PROCESS STABILITY,PARTICULARLY ABSOLUTE THICKNESS ACCURACY AND PLANT SAFETY, IN HOT ROLLING OF STEEL OR NONFERROUS MATERIALS
Abstract	Abstract The invention relates to a method for increasing the process stability, particularly the absolute thickness precision and the installation safety during the hot rolling of steel or nonferrous materials, with small degrees of deformation (f) or no reductions while taking the high-temperature limit of elasticity (Re) into account when calculating the set rolling force (FW) and the respective setting position (s). The process stability can be increased with regard to the precision of the yield stress (kf,R) and the set rolling force (FW) at small degrees of deformation (f) or small reductions, during which the high-temperature limit of elasticity (Re) is determined according to the deformation temperature (T) and/or the deformation speed (phip) and is integrated into the function of the yield stress (kf) for determining the set rolling force (FW) via the relation (2) ) Re= a + e <bl+ b2 . T>. phip<C >, in which: Re represents the high-temperature limit of elasticity; T represents the deformation temperature; phip represents the deformation speed, and; a, b, c represent coefficients.

Title of Invention

METHOD OF INCREASING THE PROCESS STABILITY,PARTICULARLY ABSOLUTE THICKNESS ACCURACY AND PLANT SAFETY, IN HOT ROLLING OF STEEL OR NONFERROUS MATERIALS

Abstract

Abstract The invention relates to a method for increasing the process stability, particularly the absolute thickness precision and the installation safety during the hot rolling of steel or nonferrous materials, with small degrees of deformation (f) or no reductions while taking the high-temperature limit of elasticity (Re) into account when calculating the set rolling force (FW) and the respective setting position (s). The process stability can be increased with regard to the precision of the yield stress (kf,R) and the set rolling force (FW) at small degrees of deformation (f) or small reductions, during which the high-temperature limit of elasticity (Re) is determined according to the deformation temperature (T) and/or the deformation speed (phip) and is integrated into the function of the yield stress (kf) for determining the set rolling force (FW) via the relation (2) ) Re= a + e <bl+ b2 . T>. phip<C >, in which: Re represents the high-temperature limit of elasticity; T represents the deformation temperature; phip represents the deformation speed, and; a, b, c represent coefficients.

Full Text	METHOD FOR INCREASING PROCESS STABILITY, ESPECIALLY ABSOLUTE GAGE PRECISION AND PLANT SAFETY, IN THE HOT ROLLING OF STEEL OR NONFERROUS MATERIALS The invention concerns a method for increasing process stability, especially absolute gage precision and plant safety, in the hot rolling of steel or nonferrous materials with small degrees of deformation or small reductions, taking into account the yield point at elevated temperature when calculating the set rolling force and the given adjustment position. Two earlier publications, "Kraft; and Arbeitsbedarf bildsamer Formgebungsverfahren" ["Power and Work Requirement of Plastic Deformation Processes"] by A. Hensel and T. Spittel, Leipzig, 1978, and "Rationeller Energieeinsatz bei Umformprozessen" ["Economical Energy Use in Deformation Processes"] by T. Spittel and A. Hensel, Leipzig, 1981, describe various methods for determining the set rolling force in hot rolling as the product of deformation resistance and compressed surface area. The deformation resistance itself is determined as the product of the flow stress and a factor that takes into account the roll gap geometry and/or friction conditions. The most frequently used method for determining the flow stress is its determination by a relation with influencing factors that take into account the deformation temperature, degree of deformation, and deformation rate, which are combined with one another by multiplication, e.g., in the following form: (1) where kf = flow stress kfo = initial value of the flow stress T = deformation temperature φ = degree of deformation φp deformation rate Ai; mi - thermodynamic coefficients. The thermodynamic coefficients were determined for different groups of materials; the materials within a group are differentiated by their respective kfo initial values. In another treatise, "Modellierung des Einflusses der chemischen Zusammensetzung und der Umformbedingungen auf die Flieβspannung von Stahlen bei der Warmumformung" ["Modeling the Influence of the Chemical Composition and Deformation Conditions on the Flow Stress of Steels during Hot Forming"] by M. Spittel and T. Spittel, Freiberg, 1996, it is additionally proposed that the initial value of the flow stress of a material be determined as a function of its chemical analysis and that the remaining parameters be used to take into account the temperature, the degree of deformation, and the deformation rate according to the material group. Basically, however, the multiplicative character of the relation according to Equation (1) is retained. The disadvantage of the multiplicative relation for determining the flow stress is that the function tends towards a flow stress of zero MPa with decreasing degrees of deformation φ The erroneous set rolling force calculation at small degrees of deformation or reductions constitutes a permanent plant hazard during rolling at high rolling forces and/or rolling torques close to the maximum allowable plant parameters/ as occur, for example, during rolling at lowered temperatures or even during at high temperatures and rolling stock widths close to the maximum width possible from the standpoint of plant engineering. The erroneous set rolling force calculation also has an overall negative effect on process stability, since downstream automation models and automation control systems, such as profile and flatness models and control systems, determine their set values on the basis of the set rolling force. WO 93/11886 Al discloses a rolling program calculation method for setting the set rolling force and set roll gap of a rolling stand. This method uses stand-specific and/or material-specific rolling force adjustment elements. Stand-specific adjustments in the calculation of the set rolling force are a disadvantage with respect to transferability to other installations. WO 99/02282 Al discloses a well-known method for controlling or presetting the rolling stand as a function of at least one of the quantities rolling force, rolling torque, and forward slip, in which the modeling of the parameters is accomplished by means of information processing based on neural networks or by means of an inverted rolling model by back-calculation of the material hardness in the pass with the aid of a regression model. This makes it possible to avoid errors of the type that arise in the set rolling force calculation by the multiplicative relation in the range of small degrees of deformation or reductions. However, a disadvantage of this method is that rolling results must first be available for a neural network to be trained or for an inverted rolling model. [Accordingly, the application of the proposed] .... method to materials that have not yet been rolled or to installations with different parameters is not automatically guaranteed- A common feature of the prior-art described above is that the effect of small degrees of deformation or small reductions on the flow stress during the hot rolling of steel and nonferrous materials is not taken into account correctly or sufficiently according to the previously known methods for calculating the set rolling force and for automatic gage control, or the transferability to other installations is limited, so that there are risks for the process stability, especially absolute gage precision and plant safety. The objective of the invention is to develop a method for increasing process stability, especially absolute gage precision and plant safety, in the hot rolling of steel and nonferrous materials, in which the precision of the flow stress and the set rolling force at small degrees of deformation or small reductions can be increased. In accordance with the invention, this objective is achieved by using the following relation to determine the yield point at elevated temperature as a function of the deformation temperature and/or deformation rate, which is then integrated in where Fw = set rolling force Qp = function for taking into account the roll gap geometry and friction conditions kf,R = flow stress, taking into account the yield point B = rolling stock width Rw = roll radius h0 - thickness before the pass h1 = thickness after the pass In a further refinement of the invention, it is provided that a material modulus is calculated on the basis of the set rolling force, taking into account the yield point at elevated temperature as a function of the deformation temperature and the function of the flow stress for determining the set rolling force (2) by expanding a multiplicative flow curve relation by the yield point at elevated temperature as a function of the deformation temperature and deformation rate according to the formula (3) Re - yield point at elevated temperature T = deformation temperature = deformation rate a; b; c = coefficients Due to the fact that the invention takes into account the yield point at elevated temperature as a function of the deformation temperature and deformation rate, the method produces correct values even as very small degrees of deformation are approached. The starting value is the given yield point at elevated temperature of the material to be rolled as a function of the deformation temperature and deformation rate. The advantage of using a new relation for calculating the flow stress is that the yield points at elevated temperature for the materials to be rolled are determined from measurement data of rollings with degrees of deformation smaller than a material-specific limiting degree of deformation by back-calculating the flow stresses of the given passes as a function of the deformation temperature and deformation rate from measured rolling forces and setting them equal to a yield point at elevated temperature when they are equal to the yield points at elevated temperature measured in hot tensile tests. The determined dependence of the yield point at elevated temperature on the deformation temperature and deformation rate represents the starting point of the approximated hot flow curve. In accordance with the invention, it is further provided that the flow stress is integrated in the conventional rolling force equation for determining the set rolling force for the automatic gage control as well as for computational models and automatic control processes according to the following equation (4) where deformation rate for degrees of deformation smaller than a material-specific limiting degree of deformation, according to the formula (5) where CM " material modulus Fw = set rolling force Fm = measured rolling force dh1 = change in the runout thickness The invention is then developed in such a way that the conventional gage meter equation is expanded into the form ( where dsAGc ~ change in the roll gap setting CM = material modulus CG - rolling stand modulus dh1 = change in the runout thickness Fm - set rolling force Fm ~ measured rolling force s = adjustment of the roll gap Ssoll - desired adjustment of the roll gap As a result, the material flow behavior at small degrees of deformation or reductions is now also correctly represented. The adjustment position of the electromechanical and/or hydraulic adjustment for guaranteeing the runout thickness of the rolling stock is determined on the basis of the gage meter equation and the calculated set rolling force. The figures show graphs for the flow stress as a function of the degree of deformation in accordance with the prior art and in accordance with the invention and are explained in greater detail below. — Figure 1 shows schematically the behavior of the flow stress kf as a function of the degree of deformation conventional multiplicative relation (prior art). — Figure 2 shows schematically the behavior of the flow stress kf,R as a function of the degree of deformation The disadvantage of the multiplicative relation for determining the flow stress (Figure 1} is that the function tends towards a flow stress kt of zero MPa at small degrees of deformation φ passes through zero, as plotted in the graph. Due to the fact that the invention (Figure 2) takes into account the yield point at elevated temperature Re as a function of the deformation temperature T and deformation rate Up, the method of the invention produces correct values even as very-small degrees of .deformation φ are approached. The starting value is the given yield point at elevated temperature Re of the material to be rolled as a function of the deformation temperature T and deformation rate (pp. List of Reference Symbols Ai thermodynamic coefficients ai bi, c coefficients B rolling stock width CG stand modulus CM material modulus dh1 change in the runout thickness dsAGc change in the roll gap setting Fm measured rolling force Fw set rolling force ho thickness before the pass h1 thickness after the pass kf flow stress kfo initial value of the flow stress kf,R flow stress, taking into account the yield point mi thermodynamic coefficients φ degree of deformation φG limiting degree of deformation φp deformation rate Qp function for taking into account the roll gap geometry and friction conditions CLAIMS 1, Method for increasing process stability, especially absolute gage precision and plant safety, in the hot rolling of steel or nonferrous materials with small degrees of deformation (φ) or small reductions, taking into account the yield point at elevated temperature (Re) when calculating the set rolling force (Fw) and the given adjustment position (s) , characterized by the fact that the following relation is used to determine the yield point at elevated temperature (Re) as a function of the deformation temperature (T) and/or deformation rate ( (2) by expanding a multiplicative flow curve relation by the yield point at elevated temperature (Re) as a function of the deformation temperature (T) and deformation rate {φp) according to the formula (3) where Re = yield point at elevated temperature T = deformation temperature φp = deformation rate a,; bi/ c = coefficients 2- Method in accordance with Claim 1, characterized by the fact that the flow stress (kf,R) is integrated in the conventional rolling force equation for determining the set rolling force (Fw) for the automatic gage control as well as for computational models and automatic control processes according to the following equation (4) where Fw = set rolling force Qp = function for taking into account the roll gap geometry and friction conditions kf,R = flow stress, taking into account the yield point B - rolling stock width Rw - roll radius h0 = thickness before the pass h1 = thickness after the pass 3. Method in accordance with Claim 1 or Claim 2, characterized by the fact that a material modulus (CM) is calculated on the basis of the set rolling force (Fw), taking into account the yield point at elevated temperature (R^) as a function of the deformation temperature (T) and deformation rate (φp) for degrees of deformation smaller than a material-specific limiting degree of deformation {φG), according to the formula (5) where CM = material modulus Fw = set rolling force Fm = measured rolling force dhi = change in the runout thickness 4. Method in accordance with Claim 3, characterized by the fact that the conventional gage meter equation is expanded into the form e dsAQc - change in the roll ga CM - material modulus where dsAGO - change in the roll gap setting CM - material modulus Dated this 22 day of August 2006

Full Text

METHOD FOR INCREASING PROCESS STABILITY, ESPECIALLY
ABSOLUTE GAGE PRECISION AND PLANT SAFETY, IN THE
HOT ROLLING OF STEEL OR NONFERROUS MATERIALS
The invention concerns a method for increasing process stability, especially absolute gage precision and plant safety, in the hot rolling of steel or nonferrous materials with small degrees of deformation or small reductions, taking into account the yield point at elevated temperature when calculating the set rolling force and the given adjustment position.
Two earlier publications, "Kraft; and Arbeitsbedarf bildsamer Formgebungsverfahren" ["Power and Work Requirement of Plastic Deformation Processes"] by A. Hensel and T. Spittel, Leipzig, 1978, and "Rationeller Energieeinsatz bei Umformprozessen" ["Economical Energy Use in Deformation Processes"] by T. Spittel and A. Hensel, Leipzig, 1981, describe various methods for determining the set rolling force in hot rolling as the product of deformation resistance and compressed surface area. The deformation resistance itself is determined as the product of the flow stress and a factor that takes into

account the roll gap geometry and/or friction conditions. The most frequently used method for determining the flow stress is its determination by a relation with influencing factors that take into account the deformation temperature, degree of deformation, and deformation rate, which are combined with one another by multiplication, e.g., in the following form:
(1)
where
kf = flow stress
kfo = initial value of the flow stress
T = deformation temperature
φ = degree of deformation
φp deformation rate
Ai; mi - thermodynamic coefficients.
The thermodynamic coefficients were determined for different groups of materials; the materials within a group are differentiated by their respective kfo initial values.
In another treatise, "Modellierung des Einflusses der chemischen Zusammensetzung und der Umformbedingungen auf die Flieβspannung von Stahlen bei der Warmumformung" ["Modeling the Influence of the Chemical Composition and Deformation Conditions

on the Flow Stress of Steels during Hot Forming"] by M. Spittel and T. Spittel, Freiberg, 1996, it is additionally proposed that the initial value of the flow stress of a material be determined as a function of its chemical analysis and that the remaining parameters be used to take into account the temperature, the degree of deformation, and the deformation rate according to the material group. Basically, however, the multiplicative character of the relation according to Equation (1) is retained.
The disadvantage of the multiplicative relation for determining the flow stress is that the function tends towards a
flow stress of zero MPa with decreasing degrees of deformation φ The erroneous set rolling force calculation at small degrees of deformation or reductions constitutes a permanent

plant hazard during rolling at high rolling forces and/or rolling torques close to the maximum allowable plant parameters/ as occur, for example, during rolling at lowered temperatures or even during at high temperatures and rolling stock widths close to the maximum width possible from the standpoint of plant engineering.
The erroneous set rolling force calculation also has an overall negative effect on process stability, since downstream automation models and automation control systems, such as profile and flatness models and control systems, determine their set values on the basis of the set rolling force.
WO 93/11886 Al discloses a rolling program calculation method for setting the set rolling force and set roll gap of a rolling stand. This method uses stand-specific and/or material-specific rolling force adjustment elements. Stand-specific adjustments in the calculation of the set rolling force are a disadvantage with respect to transferability to other installations.
WO 99/02282 Al discloses a well-known method for controlling or presetting the rolling stand as a function of at least one of the quantities rolling force, rolling torque, and forward slip, in which the modeling of the parameters is

accomplished by means of information processing based on neural networks or by means of an inverted rolling model by back-calculation of the material hardness in the pass with the aid of a regression model. This makes it possible to avoid errors of the type that arise in the set rolling force calculation by the multiplicative relation in the range of small degrees of deformation or reductions. However, a disadvantage of this method is that rolling results must first be available for a neural network to be trained or for an inverted rolling model.
[Accordingly, the application of the proposed] .... method to materials that have not yet been rolled or to installations with different parameters is not automatically guaranteed-
A common feature of the prior-art described above is that the effect of small degrees of deformation or small reductions on the flow stress during the hot rolling of steel and nonferrous materials is not taken into account correctly or sufficiently according to the previously known methods for calculating the set rolling force and for automatic gage control, or the transferability to other installations is limited, so that there are risks for the process stability, especially absolute gage precision and plant safety.

The objective of the invention is to develop a method for increasing process stability, especially absolute gage precision and plant safety, in the hot rolling of steel and nonferrous materials, in which the precision of the flow stress and the set rolling force at small degrees of deformation or small reductions can be increased.
In accordance with the invention, this objective is achieved by using the following relation to determine the yield point at elevated temperature as a function of the deformation
temperature and/or deformation rate, which is then integrated in where
Fw = set rolling force
Qp = function for taking into account the roll gap geometry and friction conditions
kf,R = flow stress, taking into account the yield point
B = rolling stock width
Rw = roll radius
h0 - thickness before the pass
h1 = thickness after the pass
In a further refinement of the invention, it is provided that a material modulus is calculated on the basis of the set rolling force, taking into account the yield point at elevated temperature as a function of the deformation temperature and

the function of the flow stress for determining the set rolling force
(2)
by expanding a multiplicative flow curve relation by the yield point at elevated temperature as a function of the deformation temperature and deformation rate according to the formula
(3)
Re - yield point at elevated temperature
T = deformation temperature = deformation rate
a; b; c = coefficients
Due to the fact that the invention takes into account the yield point at elevated temperature as a function of the deformation temperature and deformation rate, the method produces correct values even as very small degrees of deformation are approached. The starting value is the given yield point at elevated temperature of the material to be rolled as a function of the deformation temperature and deformation rate.
The advantage of using a new relation for calculating the flow stress is that the yield points at elevated temperature for the materials to be rolled are determined from measurement data

of rollings with degrees of deformation smaller than a material-specific limiting degree of deformation by back-calculating the flow stresses of the given passes as a function of the deformation temperature and deformation rate from measured rolling forces and setting them equal to a yield point at elevated temperature when they are equal to the yield points at elevated temperature measured in hot tensile tests. The determined dependence of the yield point at elevated temperature on the deformation temperature and deformation rate represents the starting point of the approximated hot flow curve.
In accordance with the invention, it is further provided that the flow stress is integrated in the conventional rolling force equation for determining the set rolling force for the automatic gage control as well as for computational models and automatic control processes according to the following equation
(4) where

deformation rate for degrees of deformation smaller than a material-specific limiting degree of deformation, according to the formula
(5) where
CM " material modulus
Fw = set rolling force
Fm = measured rolling force
dh1 = change in the runout thickness
The invention is then developed in such a way that the conventional gage meter equation is expanded into the form
( where
dsAGc ~ change in the roll gap setting
CM = material modulus
CG - rolling stand modulus
dh1 = change in the runout thickness
Fm - set rolling force
Fm ~ measured rolling force
s = adjustment of the roll gap

Ssoll - desired adjustment of the roll gap
As a result, the material flow behavior at small degrees of deformation or reductions is now also correctly represented. The adjustment position of the electromechanical and/or hydraulic adjustment for guaranteeing the runout thickness of the rolling stock is determined on the basis of the gage meter equation and the calculated set rolling force.
The figures show graphs for the flow stress as a function of the degree of deformation in accordance with the prior art and in accordance with the invention and are explained in greater detail below.
— Figure 1 shows schematically the behavior of the flow
stress kf as a function of the degree of deformation

conventional multiplicative relation (prior art).
— Figure 2 shows schematically the behavior of the flow
stress kf,R as a function of the degree of deformation

The disadvantage of the multiplicative relation for determining the flow stress (Figure 1} is that the function tends towards a flow stress kt of zero MPa at small degrees of

deformation φ passes through zero, as plotted in the graph.
Due to the fact that the invention (Figure 2) takes into account the yield point at elevated temperature Re as a function of the deformation temperature T and deformation rate Up, the method of the invention produces correct values even as very-small degrees of .deformation φ are approached. The starting value is the given yield point at elevated temperature Re of the material to be rolled as a function of the deformation
temperature T and deformation rate (pp.

List of Reference Symbols
Ai thermodynamic coefficients
ai bi, c coefficients
B rolling stock width
CG stand modulus
CM material modulus
dh1 change in the runout thickness
dsAGc change in the roll gap setting
Fm measured rolling force
Fw set rolling force
ho thickness before the pass
h1 thickness after the pass
kf flow stress
kfo initial value of the flow stress
kf,R flow stress, taking into account the yield point
mi thermodynamic coefficients
φ degree of deformation
φG limiting degree of deformation
φp deformation rate
Qp function for taking into account the roll gap geometry
and friction conditions

CLAIMS
1, Method for increasing process stability, especially absolute gage precision and plant safety, in the hot rolling of steel or nonferrous materials with small degrees of deformation
(φ) or small reductions, taking into account the yield point at elevated temperature (Re) when calculating the set rolling force (Fw) and the given adjustment position (s) , characterized by the fact that the following relation is used to determine the yield point at elevated temperature (Re) as a function of the
deformation temperature (T) and/or deformation rate (
(2)
by expanding a multiplicative flow curve relation by the yield
point at elevated temperature (Re) as a function of the
deformation temperature (T) and deformation rate {φp) according to the formula
(3)

where
Re = yield point at elevated temperature T = deformation temperature
φp = deformation rate
a,; bi/ c = coefficients
2- Method in accordance with Claim 1, characterized by the fact that the flow stress (kf,R) is integrated in the conventional rolling force equation for determining the set rolling force (Fw) for the automatic gage control as well as for computational models and automatic control processes according to the following equation
(4) where
Fw = set rolling force
Qp = function for taking into account the roll gap
geometry and friction conditions
kf,R = flow stress, taking into account the yield point
B - rolling stock width
Rw - roll radius
h0 = thickness before the pass
h1 = thickness after the pass

3. Method in accordance with Claim 1 or Claim 2,
characterized by the fact that a material modulus (CM) is
calculated on the basis of the set rolling force (Fw), taking
into account the yield point at elevated temperature (R^) as a
function of the deformation temperature (T) and deformation rate
(φp) for degrees of deformation smaller than a material-specific limiting degree of deformation {φG), according to the formula
(5) where
CM = material modulus
Fw = set rolling force
Fm = measured rolling force
dhi = change in the runout thickness
4. Method in accordance with Claim 3, characterized by the
fact that the conventional gage meter equation is expanded into
the form
e
dsAQc - change in the roll ga CM - material modulus

where
dsAGO - change in the roll gap setting
CM - material modulus
Dated this 22 day of August 2006

Documents:

3067-CHENP-2006 CORRESPONDENCE OTHERS 25-07-2011.pdf

3067-CHENP-2006 AMENDED PAGES OF SPECIFICATION 01-06-2012.pdf

3067-CHENP-2006 AMENDED CLAIMS 01-06-2012.pdf

3067-CHENP-2006 EXAMINATION REPORT REPLY RECEIVED 01-06-2012.pdf

3067-CHENP-2006 FORM-1 01-06-2012.pdf

3067-CHENP-2006 FORM-3 01-06-2012.pdf

3067-CHENP-2006 OTHER PATENT DOCUMENT 01-06-2012.pdf

3067-CHENP-2006 POWER OF ATTORNEY 01-06-2012.pdf

3067-CHENP-2006 FORM-13 11-08-2009.pdf

3067-chenp-2006-abstract.pdf

3067-chenp-2006-claims.pdf

3067-chenp-2006-correspondnece-others.pdf

3067-chenp-2006-description(complete).pdf

3067-chenp-2006-drawings.pdf

3067-chenp-2006-form 1.pdf

3067-chenp-2006-form 26.pdf

3067-chenp-2006-form 3.pdf

3067-chenp-2006-form 5.pdf

3067-chenp-2006-pct.pdf

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Patent Number

253075

Indian Patent Application Number

3067/CHENP/2006

PG Journal Number

26/2012

Publication Date

29-Jun-2012

Grant Date

25-Jun-2012

Date of Filing

22-Aug-2006

Name of Patentee

SMS Siemag Aktiengesellschaft

Applicant Address

EDUARD-SCHLOEMANN-STRASSE 4, 40237 DUSSELDORF

Inventors:

#	Inventor's Name	Inventor's Address
1	LIXFELD, Peter	Auf der Hütte 31, 57271 Hilchenbach
2	SKODA-DOPP, Ulrich	Mainstrasse 55, 47051 Duisburg
3	WEHAGE, Harald	An der Ziegelhutte 23, 38871 Ilsenburg,
4	GRIMM, Wolfgang	Blaue Steinstrasse 18, 38871 Ilsenburg
5	BOROWIKOW, Alexander	Bernauer Weg 5, 16230 Gruntal
6	BLEI, Holger	Ella-Kay-Strasse 38, 10405 Berlin

PCT International Classification Number

B21B37/00,37/16

PCT International Application Number

PCT/EP2005/000348

PCT International Filing date

2005-01-14

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	10 2004 003 514.8	2004-01-23	Germany