CN106269882A - Cold continuous rolling working roll dynamic variable specification play method - Google Patents

Abstract

The invention discloses a kind of cold continuous rolling working roll dynamic variable specification play method, a length of L of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel_Weld=t_WS(1)·V₀Time, the 1st frame working roll starts by current location play to next coiled strip steel working roll play setting position.During welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel a length of, the 2nd frame working roll starts by current location play to next coiled strip steel working roll play setting position.During welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel a length of, the 3rd frame working roll starts by current location play to next coiled strip steel working roll play setting position.The present invention both ensure that strip steel head and the control accuracy of afterbody edge thinning, and strip steel can be prevented again at commissure broken belt.

Description

Cold continuous rolling working roll dynamic variable specification play method

Technical field

The present invention relates to a kind of cold continuous rolling working roll dynamic variable specification play method, belong to roll control field.

Background technology

Cold continuous rolling is produced as continuous rolling pattern without a head, for meeting the demand of client's different product specification, often becomes Change product specification, cause current the most just at the width of rolled band steel and the width of next coiled strip steel, steel grade and thickness the most not With, adjacent two coiled strip steel laser welder together, form weld seam between two coiled strip steels.For common Four-high mill and six-high cluster mill, due to working roll axial restraint, by dynamically adjusting roll gap, speed when becoming specification It is capable of the width of adjacent two coiled strip steels, steel grade, the conversion of thickness equal-specification, it is ensured that when becoming specification with tension force Stablizing of the operation of rolling.

For the single-ended traversing milling train of taper work roller, when becoming specification, need the change according to adjacent coiled strip steel width Change the position dynamically adjusting working roll roll shifting hydraulic cylinder, in order to adjust the insertion of conical section, effectively control strip steel Edge thinning.When the method generally used is welding seam distance first roller seam 10 meters, working roll starts play, By factors such as working roll play speed, strip steel at entry velocity variations, each frame mill speed, each frame roll-forces Impact, it is impossible to ensure that weld seam enters before roll gap working roll play to the working roll roll shifting setting of next coiled strip steel Position, and then head and the control accuracy of afterbody strip steel edge thinning cannot be ensured.Meanwhile, the width of strip steel When metric lattice change from small to big, if working roll fails to enter before roll gap play to the setting position of next coiled strip steel at weld seam Put, can cause at commissure broken belt.

Summary of the invention

The invention provides a kind of cold continuous rolling working roll dynamic variable specification play method.Before weld seam enters roll gap, Working roll play is to the working roll roll shifting setting position of next coiled strip steel.The working roll play of each frame arrives down During the working roll roll shifting setting position of one coiled strip steel, strip steel weld joint apart from the distance of this frame roll gap less than 0.5 meter. Both ensure that strip steel head and the control accuracy of afterbody edge thinning, strip steel can be prevented again at commissure broken belt.

The present invention provides a kind of cold continuous rolling working roll dynamic variable specification play method, comprises the steps of

(1) the 1st frame working roll dynamic variable specification play

Length L of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel_WeldFor L_Weld=t_WS(1)·V₀ Time, the 1st frame working roll initially axially play,

In formula: L_WeldWhen 1st frame triggers working roll roll shifting, current coiled strip steel and the welding seam distance of next coiled strip steel The strip length of the 1st frame, unit: m；

V₀The speed of the 1st frame strip steel at entry, unit: m/s；

t_WS(1) during dynamic variable specification, the play time of the 1st frame working roll, unit: s；

$t_{\mathrm{WS}}\left(1\right)=\frac{S_{\mathrm{WS}}\left(1\right)}{V_{\mathrm{WS}}\left(1\right)}$

S_WS(1) during dynamic variable specification, the play stroke of the 1st frame working roll, unit: m；

S_WS(1)=W₂-W₁+EL_set2(1)-EL_set1(1)

W₂Next coiled strip steel width, unit: m；

W₁Current coiled strip steel width, unit: m；

EL_set2(1) next coiled strip steel the 1st frame insertion, unit: m；

EL_set1(1) current coiled strip steel the 1st frame insertion, unit: m；

V_WS(1) during dynamic variable specification, the play speed of the 1st frame working roll, unit: m/s；

$V_{\mathrm{WS}}\left(1\right)=\frac{Q_N\·\sqrt{\frac{P_S-\frac{F\left(1\right)}{S}}{{\mathrm{\ΔP}}_N}}}{20\·S}$

Q_NRated flow of servovalve, unit: m³/s；

P_SOil supply pressure, unit: MPa；

S working roll roll shifting hydraulic cylinder force area, unit: m²；

ΔP_NServo valve rated voltage drop, unit: MPa；

The working roll axial float power of the 1st frame of F (1), unit: N；

(2) the 2nd frame working roll dynamic variable specification plaies

Length L of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel_WeldForTime, during the 2nd frame working roll initially axially play,

In formula: L_WeldWhen 2nd frame triggers working roll roll shifting, current coiled strip steel and the welding seam distance of next coiled strip steel

The strip length of the 1st frame, unit: m；

V₁The speed of the 1st rack outlet strip steel, unit: m/s；

L₁₂1st frame roll gap and the 2nd frame roll gap distance, unit: m；

H₁1st rack outlet belt steel thickness, unit: m；

H₀1st frame strip steel at entry thickness, unit: m；

t_WS(2) during dynamic variable specification, the roll shifting time of the 2nd frame working roll, unit: s；

$t_{\mathrm{WS}}\left(2\right)=\frac{S_{\mathrm{WS}}\left(2\right)}{V_{\mathrm{WS}}\left(2\right)}$

S_WS(2) during dynamic variable specification, the play stroke of the 2nd frame working roll, unit: m；

S_WS(2)=W₂-W₁+EL_set2(2)-EL_set1(2)

W₂Next coiled strip steel width, unit: m；

W₁Current coiled strip steel width, unit: m；

EL_set2(2) next coiled strip steel the 2nd frame insertion, unit: m；

EL_set1(2) current coiled strip steel the 2nd frame insertion, unit: m；

V_WS(2) during dynamic variable specification, the play speed of the 2nd frame working roll, unit: m/s；

$V_{\mathrm{WS}}\left(2\right)=\frac{Q_N\·\sqrt{\frac{P_S-\frac{F\left(2\right)}{S}}{{\mathrm{\ΔP}}_N}}}{20\·S}$

Q_NRated flow of servovalve, unit: m³/s；

P_SOil supply pressure, unit: MPa；

S working roll roll shifting hydraulic cylinder force area, unit: m²；

ΔP_NServo valve rated voltage drop, unit: MPa；

The working roll axial float power of the 2nd frame of F (2), unit: N；

(3) the 3rd frame working roll dynamic variable specification plaies

Length L of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel_WeldForTime, the 3rd frame working roll initially axially play,

In formula: L_WeldWhen 3rd frame triggers working roll roll shifting, current coiled strip steel and the welding seam distance of next coiled strip steel

The strip length of the 1st frame, unit: m；

V₂The speed of the 2nd rack outlet strip steel, unit: m/s；

L₁₃1st frame roll gap and the 3rd frame roll gap distance, unit: m；

H₂2nd rack outlet belt steel thickness, unit: m；

H₀1st frame strip steel at entry thickness, unit: m.

t_WS(3) during dynamic variable specification, the roll shifting time of the 3rd frame working roll, unit: s；

$t_{\mathrm{WS}}\left(3\right)=\frac{S_{\mathrm{WS}}\left(3\right)}{V_{\mathrm{WS}}\left(3\right)}$

S_WS(3) during dynamic variable specification, the play stroke of the 3rd frame working roll, unit: m；

S_WS(3)=W₂-W₁+EL_set2(3)-EL_set1(3)

W₂Next coiled strip steel width, unit: m；

W₁Current coiled strip steel width, unit: m；

EL_set2(3) next coiled strip steel the 3rd frame insertion, unit: m；

EL_set1(3) current coiled strip steel the 3rd frame insertion, unit: m；

V_WS(3) during dynamic variable specification, the play speed of the 3rd frame working roll, unit: m/s；

$V_{\mathrm{WS}}\left(3\right)=\frac{Q_N\·\sqrt{\frac{P_S-\frac{F\left(3\right)}{S}}{{\mathrm{\ΔP}}_N}}}{20\·S}$

Q_NRated flow of servovalve, unit: m³/s；

P_SOil supply pressure, unit: MPa；

S working roll roll shifting hydraulic cylinder force area, unit: m²；

ΔP_NServo valve rated voltage drop, unit: MPa；

The working roll axial float power of the 3rd frame of F (3), unit: N；

The present invention has following characteristics and a beneficial effect:

The triggering of (1) the 1st frame working roll dynamic variable specification play is by the speed of the 1st frame strip steel at entry V₀, next coiled strip steel width W₂, current coiled strip steel width W₁, next coiled strip steel the 1st frame insertion EL_set2(1), current coiled strip steel the 1st frame insertion EL_set1(1), the working roll axial float of the 1st frame Power F (1) is dynamically determined jointly, and the pattern that solves triggers taking the lead of causing of working roll play and magnetic tape trailer edge thinning The problem that control accuracy cannot ensure.

The triggering of (2) the 2nd frame working roll dynamic variable specification plaies is by the speed of the 1st rack outlet strip steel V₁, the 1st frame roll gap and the 2nd frame roll gap distance L₁₂, the 1st rack outlet belt steel thickness H₁, the 1st machine Frame strip steel at entry thickness H₀, next coiled strip steel width W₂, current coiled strip steel width W₁, next coiled strip steel the 2nd Frame insertion EL_set2(2), current coiled strip steel the 2nd frame insertion EL_set1(2), the work of the 2nd frame Roller axial float power F (2) is dynamically determined jointly, solve pattern trigger working roll play cause taking the lead and carrying The problem that tail edge thinning control accuracy cannot ensure.

The triggering of (3) the 3rd frame working roll dynamic variable specification plaies is by the speed of the 2nd rack outlet strip steel V₂, the 1st frame roll gap and the 3rd frame roll gap distance L₁₃, the 2nd rack outlet belt steel thickness H₂, the 1st machine Frame strip steel at entry thickness H₀, next coiled strip steel width W₂, current coiled strip steel width W₁, next coiled strip steel the 3rd Frame insertion EL_set2(3), current coiled strip steel the 3rd frame insertion EL_set1(3), the work of the 3rd frame Roller axial float power F (3) is dynamically determined jointly, solve pattern trigger working roll play cause taking the lead and carrying The problem that tail edge thinning control accuracy cannot ensure.

(4) before weld seam enters roll gap, the working roll roll shifting setting position of working roll play to next coiled strip steel. When the working roll play of each frame is to the working roll roll shifting setting position of next coiled strip steel, strip steel weld joint distance should The distance of frame roll gap is less than 0.5 meter.Both strip steel head and the control accuracy of afterbody edge thinning had been ensure that, again Strip steel can be prevented at commissure broken belt.

Accompanying drawing explanation

Fig. 1 cold continuous rolling dynamic variable specification schematic diagram (a) layout of equipment；B () strip steel narrows from the width Schematic diagram；C () strip steel is by the narrow schematic diagram that broadens；(d) working roll axial float schematic diagram；Figure (a), figure B the direction of arrow of () and figure (c) represents strip steel traffic direction；Figure (d) direction of arrow expression work roll shaft To play direction, when strip steel narrows from the width, the conical section of upper and lower working roll to rolling centerline direction play, When strip steel is by narrow broadening, the conical section of upper and lower working roll is to deviation rolling centerline direction play；

1 entrance profile gauge；2 5#S rollers；3 deviation rectification rollers；4 6#S rollers；5 slewing rollers；6 the 1st Frame entrance laser velocimeter；7 the 1st frame entrance calibrators；8 the 1st frames；9 the 1st frames go out Mouth calibrator；10 the 2nd frame entrance laser velocimeters；11 the 2nd frames；12 the 2nd rack outlet are surveyed Thick instrument；13 the 3rd frame entrance laser velocimeters；14 the 3rd frames；15 the 3rd frame working rolls；16 2nd frame working roll；17 the 1st frame working rolls；

Fig. 2 working roll play control system schematic diagram

Fig. 3 practical application effect figure (a) the 1st frame working roll axial location working roll position；Figure The length of welding seam distance the 1st frame of (b) current coiled strip steel and next coiled strip steel.

Detailed description of the invention

Below in conjunction with the accompanying drawings the present invention is described in further detail.

The present invention is applicable to the single-ended traversing milling train of taper work roller, and equipment composition is shown in Fig. 1.1st frame 8, 2 frame the 11, the 3rd frames 14 possess work traversing play function.Equipment includes entrance profile gauge 1,5#S roller 2, deviation rectification roller 3,6#S roller 4, slewing rollers the 5, the 1st frame entrance laser velocimeter the 6, the 1st frame entrance Calibrator the 7, the 1st rack outlet calibrator the 9, the 2nd frame entrance laser velocimeter the 10, the 2nd rack outlet Calibrator the 12, the 3rd frame entrance laser velocimeter 13.

Working roll play control system constitutes and sees Fig. 2, including working roll play system (working roll dynamic variable specification Play is included in), Process Control System, press control system, thickness control system, transmission control system System, calibrator, tachymeter.

Tachymeter is sent to the parameter of thickness control system and includes: speed V of the 1st frame strip steel at entry₀(unit: M/s, the 1st frame entrance laser velocimeter 6)；Speed V of the 1st rack outlet strip steel₁(unit: m/s, 2nd frame entrance laser velocimeter 10)；Speed V of the 2nd rack outlet strip steel₂(unit: m/s, the 3rd Frame entrance laser velocimeter 13).These parameters are sent to working roll play system by thickness control system again.

Process Control System is handed down to the data of working roll play system and includes: next coiled strip steel width W₂(single Position: m)；Current coiled strip steel width W₁(unit: m)；Next coiled strip steel the 1st frame insertion EL_set2(1) (unit: m)；Current coiled strip steel the 1st frame insertion EL_set1(1) (unit: m)；Next coiled strip steel the 2nd Frame insertion EL_set2(2) (unit: m)；Current coiled strip steel the 2nd frame insertion EL_set1(2) (unit: m)；Next coiled strip steel the 3rd frame insertion EL_set2(3) (unit: m), current coiled strip steel the 3rd frame are inserted Enter amount (unit: m) EL_set1(3)。

Driving control system is sent to the data of working roll play system and includes: the mill speed of the 1st frame V_s(1) (unit: m/s)；Mill speed V of the 2nd frame_s(2) (unit: m/s)；Rolling of 3rd frame Speed V processed_s(3) (unit: m/s).

Press control system to be sent to the data of working roll play system and include: roll-force P (1) of the 1st frame (unit: N)；Roll-force P (2) (unit: N) of the 2nd frame；Roll-force P (3) of the 3rd frame (unit: N).

Strip tracking system is sent to the data of working roll play system and includes: current coiled strip steel and next coiled strip steel The strip length L of welding seam distance the 1st frame_Weld(unit: m).

Calibrator is sent to the data of thickness control system and includes: the 1st frame strip steel at entry thickness H₀(unit: m)；1st rack outlet belt steel thickness H₁(unit: m)；2nd rack outlet belt steel thickness H₂(unit: m).These parameters are sent to working roll play system by thickness control system again.

Working roll axial float power F (1) (unit: N) of the 1st frame, the work roll shaft of the 2nd frame To play power F (2) (unit: N), working roll axial float power F (3) (unit: N) of the 3rd frame Measuring method: a kind of is the oil pressure using oil pressure sensor to measure in hydraulic cylinder, is then passed through conversion and obtains； Another kind of method is that direct force cell is measured.

1st frame roll gap and the 2nd frame roll gap distance L₁₂(unit: m), the 1st frame roll gap and the 3rd machine Frame roll gap distance L₁₃(unit: m) is all constant, can be checked in by plant equipment general installation drawing paper.

Working roll play hydraulic cylinder force area S (unit: m²) can be from working roll play hydraulic cylinder Machine Design Drawing calculates.

Oil supply pressure P_S(unit: MPa) is rolling mill hydraulic servosystem pump station pressure.

Rated flow of servovalve Q_N(unit: m³/ s), servo valve rated voltage drop Δ P_N(unit: MPa) can Checked in by servo valve catalog.

Length L of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel_Weld(unit: m) is L_Weld=t_WS(1)·V₀Time, the 1st frame working roll starts to be altered to next coiled strip steel working roll by current location play Dynamic setting position.

Length L of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel_Weld(unit: m) isTime, the 2nd frame working roll starts by current location play to next winding Steel working roll play setting position.

Length L of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel_Weld(unit: m) isTime, the 3rd frame working roll starts by current location play to next winding Steel working roll play setting position.

Practical application effect is shown in Fig. 3, and figure (a) is the 1st frame working roll axial location change curve, along with The change of strip width, the axial location of working roll also will be along with change.Working roll axial location change stop bit Put and show that working roll dynamic variable specification play puts in place.

Figure (b) is the length of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel, also shows weldering The position of seam.When the length of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel is equal to 0, show Weld seam enters the 1st frame roll gap.In the longitudinal dotted line moment shown in figure (a) and figure (b), the 1st frame work When making the termination of roller axial change in location, the length of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel Being 0, weld seam is just into the 1st frame roll gap.

Weld seam according to the 1st frame working roll dynamic variable specification play method, current coiled strip steel and next coiled strip steel Length L of distance the 1st frame_WeldFor L_Weld=t_WS(1)·V₀Time, the 1st frame working roll starts play.

Claims (2)

1. a cold continuous rolling working roll dynamic variable specification play method, it is characterised in that: comprise the steps of

(1) the 1st frame working roll dynamic variable specification play

Length L of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel_WeldFor L_Weld=t_WS(1)·V₀ Time, the 1st frame working roll initially axially play,

In formula: L_WeldWhen 1st frame triggers working roll roll shifting, current coiled strip steel and the welding seam distance of next coiled strip steel The strip length of the 1st frame, unit: m；

V₀The speed of the 1st frame strip steel at entry, unit: m/s；

t_WS(1) during dynamic variable specification, the play time of the 1st frame working roll, unit: s；

$t_{\mathrm{WS}}\left(1\right)=\frac{S_{\mathrm{WS}}\left(1\right)}{V_{\mathrm{WS}}\left(1\right)}$

S_WS(1) during dynamic variable specification, the play stroke of the 1st frame working roll, unit: m；

S_WS(1)=W₂-W₁+EL_set2(1)-EL_set1(1)

W₂Next coiled strip steel width, unit: m；

W₁Current coiled strip steel width, unit: m；

EL_set2(1) next coiled strip steel the 1st frame insertion, unit: m；

EL_set1(1) current coiled strip steel the 1st frame insertion, unit: m；

V_WS(1) during dynamic variable specification, the play speed of the 1st frame working roll, unit: m/s；

$V_{\mathrm{WS}}\left(1\right)=\frac{Q_N\·\sqrt{\frac{P_S-\frac{F\left(1\right)}{S}}{{\mathrm{\ΔP}}_N}}}{20\·S}$

Q_NRated flow of servovalve, unit: m³/s；

P_SOil supply pressure, unit: MPa；

S working roll roll shifting hydraulic cylinder force area, unit: m²；

ΔP_NServo valve rated voltage drop, unit: MPa；

The working roll axial float power of the 1st frame of F (1), unit: N；

(2) the 2nd frame working roll dynamic variable specification plaies

Length L of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel_WeldFor:Time, the 2nd frame working roll initially axially play,

In formula: L_WeldWhen 2nd frame triggers working roll roll shifting, current coiled strip steel and the welding seam distance of next coiled strip steel The strip length of the 1st frame, unit: m；

V₁The speed of the 1st rack outlet strip steel, unit: m/s；

L₁₂1st frame roll gap and the 2nd frame roll gap distance, unit: m；

H₁1st rack outlet belt steel thickness, unit: m；

H₀1st frame strip steel at entry thickness, unit: m；

t_WS(2) during dynamic variable specification, the roll shifting time of the 2nd frame working roll, unit: s；

$t_{\mathrm{WS}}\left(2\right)=\frac{S_{\mathrm{WS}}\left(2\right)}{V_{\mathrm{WS}}\left(2\right)}$

S_WS(2) during dynamic variable specification, the play stroke of the 2nd frame working roll, unit: m；

S_WS(2)=W₂-W₁+EL_set2(2)-EL_set1(2)

W₂Next coiled strip steel width, unit: m；

W₁Current coiled strip steel width, unit: m；

EL_set2(2) next coiled strip steel the 2nd frame insertion, unit: m；

EL_set1(2) current coiled strip steel the 2nd frame insertion, unit: m；

V_WS(2) during dynamic variable specification, the play speed of the 2nd frame working roll, unit: m/s；

$V_{\mathrm{WS}}\left(2\right)=\frac{Q_N\·\sqrt{\frac{P_S-\frac{F\left(2\right)}{S}}{{\mathrm{\ΔP}}_N}}}{20\·S}$

Q_NRated flow of servovalve, unit: m³/s；

P_SOil supply pressure, unit: MPa；

S working roll roll shifting hydraulic cylinder force area, unit: m²；

ΔP_NServo valve rated voltage drop, unit: MPa；

The working roll axial float power of the 2nd frame of F (2), unit: N；

(3) the 3rd frame working roll dynamic variable specification plaies

Length L of welding seam distance the 1st frame of current coiled strip steel and next coiled strip steel_WeldFor:Time, the 3rd frame working roll initially axially play,

In formula: L_WeldWhen 3rd frame triggers working roll roll shifting, current coiled strip steel and the welding seam distance of next coiled strip steel

The strip length of the 1st frame, unit: m；

V₂The speed of the 2nd rack outlet strip steel, unit: m/s；

L₁₃1st frame roll gap and the 3rd frame roll gap distance, unit: m；

H₂2nd rack outlet belt steel thickness, unit: m；

H₀1st frame strip steel at entry thickness, unit: m；

t_WS(3) during dynamic variable specification, the roll shifting time of the 3rd frame working roll, unit: s；

$t_{\mathrm{WS}}\left(3\right)=\frac{S_{\mathrm{WS}}\left(3\right)}{V_{\mathrm{WS}}\left(3\right)}$

S_WS(3) during dynamic variable specification, the play stroke of the 3rd frame working roll, unit: m；

S_WS(3)=W₂-W₁+EL_set2(3)-EL_set1(3)

W₂Next coiled strip steel width, unit: m；

W₁Current coiled strip steel width, unit: m；

EL_set2(3) next coiled strip steel the 3rd frame insertion, unit: m；

EL_set1(3) current coiled strip steel the 3rd frame insertion, unit: m；

V_WS(3) during dynamic variable specification, the play speed of the 3rd frame working roll, unit: m/s；

$V_{\mathrm{WS}}\left(3\right)=\frac{Q_N\·\sqrt{\frac{P_S-\frac{F\left(3\right)}{S}}{{\mathrm{\ΔP}}_N}}}{20\·S}$

Q_NRated flow of servovalve, unit: m³/s；

P_SOil supply pressure, unit: MPa；

S working roll roll shifting hydraulic cylinder force area, unit: m²；

ΔP_NServo valve rated voltage drop, unit: MPa；

The working roll axial float power of the 3rd frame of F (3), unit: N.

A kind of cold continuous rolling working roll dynamic variable specification play method the most according to claim 1, it is special Levy and be: being controlled by working roll play control system, this system includes working roll play system, process control System, press control system, thickness control system, driving control system, calibrator, tachymeter, wherein:

Tachymeter be sent to thickness control system parameter include: speed V of the 1st frame strip steel at entry₀(single Position: m/s)；Speed V of the 1st rack outlet strip steel₁(unit: m/s)；The speed of the 2nd rack outlet strip steel V₂(unit: m/s)；These parameters are sent to working roll play system by thickness control system again；

Process Control System is handed down to the data of working roll play system and includes: next coiled strip steel width W₂(single Position: m)；Current coiled strip steel width W₁(unit: m)；Next coiled strip steel the 1st frame insertion EL_set2(1) (unit: m)；Current coiled strip steel the 1st frame insertion EL_set1(1) (unit: m)；Next coiled strip steel the 2nd Frame insertion EL_set2(2) (unit: m)；Current coiled strip steel the 2nd frame insertion EL_set1(2) (unit: m)；Next coiled strip steel the 3rd frame insertion EL_set2(3) (unit: m), current coiled strip steel the 3rd frame are inserted Enter amount (unit: m) EL_set1(3)；

Driving control system is sent to the data of working roll play system and includes: the mill speed of the 1st frame V_s(1) (unit: m/s)；Mill speed V of the 2nd frame_s(2) (unit: m/s)；Rolling of 3rd frame Speed V processed_s(3) (unit: m/s)；

Press control system to be sent to the data of working roll play system and include: roll-force P (1) of the 1st frame (unit: N)；Roll-force P (2) (unit: N) of the 2nd frame；Roll-force P (3) of the 3rd frame (unit: N)；

Strip tracking system is sent to the data of working roll play system and includes: current coiled strip steel and next coiled strip steel The strip length L of welding seam distance the 1st frame_Weld(unit: m)；

Calibrator is sent to the data of thickness control system and includes: the 1st frame strip steel at entry thickness H₀(unit: m)；1st rack outlet belt steel thickness H₁(unit: m)；2nd rack outlet belt steel thickness H₂(unit: m)；These parameters are sent to working roll play system by thickness control system again；

Working roll axial float power F (1) (unit: N) of the 1st frame, the work roll shaft of the 2nd frame To play power F (2) (unit: N), working roll axial float power F (3) (unit: N) of the 3rd frame Measuring method: a kind of is the oil pressure using oil pressure sensor to measure in hydraulic cylinder, is then passed through conversion and obtains； Another kind of method is that direct force cell is measured；

1st frame roll gap and the 2nd frame roll gap distance L₁₂(unit: m), the 1st frame roll gap and the 3rd machine Frame roll gap distance L₁₃(unit: m) is all constant, is checked in by plant equipment general installation drawing paper；

Working roll play hydraulic cylinder force area S (unit: m²) from working roll play hydraulic cylinder Machine Design figure Paper calculates；

Oil supply pressure P_S(unit: MPa) is rolling mill hydraulic servosystem pump station pressure；

Rated flow of servovalve Q_N(unit: m³/ s), servo valve rated voltage drop Δ P_N(unit: MPa) by Check on servo valve catalog.