CN1964801A - Method and rolling stand for cold rolling of metallic rolling stock in particular rolling strip with nozzles for gaseous or liquid treatment media - Google Patents

Abstract

The invention relates to a method and a rolling stand for cold rolling of metallic rolling stock (1), in particular rolling strip (1b), with nozzles for gaseous or liquid treatment media, wherein the rolling stock (1) is introduced below processing temperature for plastic shaping through the rolling gap (40) of a roller pair of an upper working roller (2) and lower working roller (3). The above permits, in addition to a rolling stock surface improvement, the lubrication and surface protection of the rolling stock (1) and the rollers (2, 3) by a reduction in rolling forces, with introduction of deep-chilled media, whereby deep chilled inert gas (41) ambient temperature inert gas (41a), lubricant emulsion (42), of added rolling oil (43) or oil-free, non-residue evaporating hydrocarbons is introduced against the sides (2a; 3a) of the working rollers (2, 3) and/or the rolling gap (40) and/or the rolling stock (1) in groups of jets from individual rows of nozzles (6a to 22b) for lubrication, cooling, and for inerting against the rolling gap (40) and/or against the rolling stock (1).

Description

Method and rolling stand for cold-rolling metal rolled products, in particular rolled strips, with nozzles for gaseous or liquid treatment media

The invention relates to a method and a rolling stand for the cold rolling of metal rolled products, in particular rolled strips, with nozzles for gaseous or liquid treatment media, wherein the rolled products are subjected to plastic deformation at processing temperatures And pass through the roll gap guide of the roll pair that is made up of upper work roll and lower work roll.

Background technique

From EP 1230045 B1/DE 19953230 C2 is known a method for cold rolling metal rolled products, in which the rolled product is plastically deformed at room temperature through a gap between rollers driven in opposite directions. In order to reduce the frictional heat, an inert gas is blown into the roll gap region, the inert gas having a lower temperature than the rolling product temperature in the roll gap. Inert gas (N ₂ ) is blown in cryogenically and fed below its liquefaction temperature. The advantage of this method is the improved surface quality of the rolled strip. However, the lubricating effect initially intended did not surprisingly occur, as had been examined extensively against mathematical process models. As a result, the cooling of the rolled product and/or the rolls in the roll gap is only achieved by feeding in the cryogenically cooled inert gas, the wear of the rolls and the kinematic behavior of the rolling process not being taken into account.

The object of the present invention is to also achieve lubrication and surface protection of the rolled product and rolls by reducing the rolling force during the supply of cryogenically cooled medium, in addition to improving the surface of the rolled product.

This object is achieved according to the invention for the above-mentioned measures in that for lubrication, cooling, cleaning of the sides facing the work rolls and/or the roll gap and/or the rolled product and for inerting the feed to the roll gap and/or to the rolled product respectively The jets from the individual nozzle rows each consist of a low-temperature inert gas, of a normal-temperature inert gas, of a lubricant emulsion, of admixed rolling oil or of oil-free, residue-free vaporized hydrocarbons. This not only improves the surface of the rolled product, but at the same time ensures the lubrication required for the rolling process and for the correct operation of the roll, wherein measures for maintaining the rolled surface and the roll surface are taken into account at the same time. Water-oil mixtures or liquid nitrogen can therefore additionally be used.

In a further embodiment, it is proposed that the nozzle row and the nozzle row for the low-temperature inert gas are fed in a medium jet consisting of a lubricant emulsion, rolling oil or hydrocarbon evaporated without oil or residue, in close proximity to the nozzle row for the cryogenic inert gas. In this case, only the temperature of the respective lubricant and the temperature of the inert gas are adjusted to each other.

A further refinement provides that the minimum quantity of the lubricant emulsion, rolling oil or oil-free and residue-free vaporized hydrocarbons is introduced by so-called additional application with a layer thickness corresponding to the surface roughness of the rolled product. This minimum quantity lubrication can be achieved by inert gas at a coordinated temperature including lubricant injection. The coefficient of friction in the roll nip can be varied according to the production and pass scheme by varying the amount of lubricant applied. Minimum quantity lubrication can also be used for different lubricant types at relatively little expense.

According to a further feature, adaptation to the different sections of the rolling zone is achieved for the rolled product entry side, the roll gap entry side, the roll entry side, the roll discharge side, the wedge roll-rolled product discharge side and the rolled product discharge side Sections of the respective lubrication, cooling, inerting and cleaning are coordinated with each other. As an example see the matrix shown in FIG. 3 .

Effective measures here are to apply a minimum amount of lubrication on the rolled product surface in the rolled product inlet and to introduce an inert gas (for example N ₂ ) in the inlet-side roll gap. The temperature of this inert medium can be selected appropriately for the selected lubricant. In this case, cold media such as liquid nitrogen and other cold inert gases can be introduced into the roll gap on the discharge side.

A further advantageous variant proposes to introduce a minimum amount of lubricant emulsion or rolling oil or of oil-free, residue-free vaporized hydrocarbons applied in the roll gap on the entry side surrounded by a low-temperature inert gas lubricating. Nitrogen can also be used as an inert medium for this option in a temperature range compatible with the lubricant.

Cooling, cleaning and inerting can be further fully utilized by introducing low-temperature inert gas into the section on the discharge side of the wedge roll-rolled product.

A particular option is to use the method described above in one of the last rolling stands of the tandem rolling line with a reduction in the thickness of the rolled product of less than about 10%. Since such an end stand is largely enlarged in a tandem rolling line and only works with a slight thickness reduction, a reduction in the tension of the rolled product can be achieved on the basis of the above-mentioned invention within the scope of further improvements. , such as reducing the strip tension to the coil level, achieving uniform surface pressing of the work rolls and ensuring strip dryness.

A separate emulsion plant with small amounts of emulsion, which is usually used in tandem rolling lines for the last rolling stand, can be completely dispensed with. Increases work roll life and maintains desired roughness for longer. Improved surface quality, defined, uniformly distributed roughness over the strip width of the discharged rolled strip. Elimination of the presently existing problem of emulsion residues on the strip and in the blowing zone of the strip after the last rolling stand of the tandem rolling line.

In such tandem rolling lines it has proven to be advantageous if the rolled product is evaporated after the penultimate rolling stand by means of coolant and lubricant emulsions or rolling oil or oil-free and residue-free Hydrocarbon cooling.

A further feature relates to the preparation of the rolled strip for further processing, whereby after cooling of the rolled product cooling and lubricant emulsions or rolling oil are removed by pressing and/or blowing.

The finished rolled product or rolled strip is protected by reapplying lubricant emulsion, rolling oil or oil-free Evaporated hydrocarbons without residue. The average coefficient of friction in this roll gap is reduced, so that the desired thickness reduction is achieved with not too high a rolling force, but also without slipping due to a drastic reduction of the rolling strip tension.

It is also advantageous if the coolant in the form of a low-temperature inert gas is introduced into the roll gap before the last rolling stand.

As a variable development, it is also possible to spray lubricant emulsions or rolling oils or oil-free, residue-free vaporized hydrocarbons in front of the last rolling stand inside a low-temperature inert gas curtain It can be injected into the roll gap by spraying or being surrounded by a curtain.

A variant development can also be designed in such a way that the rolled product and the rolled product are coated by applying a low-temperature inert gas into the wedge between the work roll and the rolled product or onto the work roll and/or the rolled product .

The method of cold-rolling metal rolled products is therefore used for the flatness regulation of hot work roll barrels in order to reduce and/or monitor the adjustment value, wherein the rolled products are guided through the roll gap of the work roll pair for plastic deformation at the processing temperature. Introducing and for lubricating, cooling, cleaning towards the sides of the work rolls and/or the roll gap and/or the rolled product and for inerting the input of respectively low-temperature inert from the respective nozzle rows towards the roll gap and/or towards the rolled product Gases, inert gases at normal temperature, lubricant emulsions or mixed rolling oils or jets of oil-free, residue-free vaporized hydrocarbons.

Furthermore, this is improved by additionally applying a cooled lubricant emulsion, rolling oil or oil-free, residue-free vaporized hydrocarbon coating smoothness control. The resulting flatness errors are no longer as large as they are today.

The invention described below relates to a rolling stand for cold rolling of metal rolled products, in particular rolled strip, with nozzles for solid, gaseous and/or liquid treatment media attached to the work rolls.

The above-mentioned object is achieved according to the invention in this way on a rolling stand of this kind, namely for the upper work roll and the lower work roll, the nozzle segments arranged above and below are arranged on the side circumference opposite to the work roll, for cleaning, cooling, Lubrication and/or inerting have rows of process media nozzles aimed at the work rolls and/or rolled product. This increases the service life of the work rolls and maintains the desired roughness for a longer period of time. Improvement of the surface quality (defined, evenly distributed roughness over the strip) of the outgoing rolled strip. Overcome the problem of emulsion residues on the rolling strip and after the blowing zone (behind the last rolling stand). The coefficient of friction in the roll gap can be adapted according to the production and pass scheme by selecting the amount of lubricant applied. For minimum quantity lubrication, different lubricant types are advantageously used at relatively little expense.

A refinement provides that the nozzle rows aligned radially against the upper and lower work rolls are located on the entry side.

Similarly, the nozzle rows aligned radially to the upper and lower work rolls are located mirror-symmetrically on the discharge side.

These nozzle rows are thus aligned in the direction of movement of the rolled product and, depending on whether the roll surface and the rolled product are cooled, lubricated or protected against oxidation, create a suitable space in the roll gap wedge filled with lubricant jets of different temperatures and A mixture of gas jets.

To form such a space-filling jet group it is further advantageous to have nozzle blocks which extend substantially at 45° relative to the surface of the rolled product, which are directed respectively at the roll gap and at the same time at the adjacent sides of the upper and lower work rolls , which accommodate rows of nozzles side by side.

For the preparation of cooling or shielding gases, liquids, lubricant emulsions or rolling oils at different temperatures, a structure is also proposed, whereby the devices arranged in the vicinity of the rolled product have respectively vertically aligned with the surface of the rolled product from below and from above. The nozzle section of the nozzle row is located on the inlet side and the nozzle section with the nozzle row is located on the outlet side. The nozzle segments can be shells arranged one above the other on the inlet side and on the outlet side symmetrically to the roll gap, which are easy to disassemble and assemble.

An exemplary embodiment is shown in the drawing, with the aid of which the method will be described below and the structure of the exemplary embodiment will be described in detail below.

Figure 1 shows a work roll pair with a nozzle section in side view,

Figure 2 shows a side view of a tandem rolling line, which is constituted by the invention and constitutes an application example,

FIG. 3 shows the distribution of cooling medium, lubricant, cleaning agent and inerting medium as an example in a matrix diagram.

According to the rolling product 1 described in Fig. 1 as a rolling strip 1b, it passes through the roll gap 40 formed between the upper work roll 2 and the lower work roll 3 at the processing temperature (generally room temperature) for plastic deformation from the entry side 4 It is guided in the direction of the discharge side 5 and rolled simultaneously. In order to lubricate (reduce the rolling force), cool (dissipate the heat generated by the rolling process) and clean (residues and/or oxides) the surface 1a of the rolled product, the medium jets from the nozzle rows attached to each other are respectively Align the sides 2a, 3a of the work rolls 2, 3 and/or the rolled product 1 as follows:

Nozzle row 6a, top (rolled product 1, entry side 4: clean)

Nozzle row 6b, below (rolled product 1, entry side 4: clean)

Nozzle row 7a, top (rolled product 1, entry side 4: cooling)

Nozzle row 7b, below (rolled product 1, entry side 4: cooling)

Nozzle row 8a, top (rolled product 1, entry side 4: lubrication)

Nozzle row 8b, below (rolled product 1, entry side 4: lubrication)

Nozzle row 9a, top (roll gap 40, entry side 4: lubrication)

Nozzle row 9b, below (roll gap 40, entry side 4: lubrication)

Nozzle row 10a, top (roll gap 40, entry side 4: cooling)

Nozzle row 10b, below (roll gap 40, entry side 4: cooling)

Nozzle row 11a, top (roll gap 40, entry side 4: clean)

Nozzle row 11b, below (roll gap 40, entry side 4: clean)

Nozzle row 12a, top (roll gap 40, entry side 4: inerting)

Nozzle row 12b, below (roll gap 40, entry side 4: inerting)

Nozzle row 13a, top (work roll 2, entry side 4: lubrication)

Nozzle row 13b, below (work roll 3, entry side 4: lubrication)

Nozzle row 14a, top (work roll 2, entry side 4: cooling)

Nozzle row 14b, below (work roll 3, entry side 4: cooling)

Nozzle row 15a, top (work roll 2, entry side 4: clean)

Nozzle row 15b, below (work roll 3, entry side 4: clean)

Nozzle row 16a, top (work roll 2, discharge side 5: cooling)

Nozzle row 16b, lower side (work roll 3, discharge side 5: cooling)

Nozzle row 17a, top (work roll 2, discharge side 5: clean)

Nozzle row 17b, below (work roll 3, discharge side 5: clean)

Nozzle row 18a, top (roll gap 40, discharge side 5: inert)

Nozzle row 18b, below (roll gap 40, discharge side 5: inert)

Nozzle row 19a, top (roll gap 40, discharge side 5: cooling)

Nozzle row 19b, below (roll gap 40, discharge side 5: cooling)

Nozzle row 20a, top (roll gap 40, discharge side 5: clean)

Nozzle row 20b, below (roll gap 40, discharge side 5: clean)

Nozzle row 21a, top (rolled product 1, discharge side 5: cooling)

Nozzle row 21b, lower side (rolled product 1, discharge side 5: cooling)

Nozzle row 22a, top (rolled product 1, discharge side 5: clean)

Nozzle row 22b, lower side (rolled product 1, discharge side 5: clean)

In addition, it can be seen from FIG. 1 that the nozzle rows 8a, 8b; 9a, 9b; 13a, 13b and the nozzle rows 7a, 7b; 10a, 10b; 19b ; 21a , 21b are fed a medium jet consisting of lubricant emulsion 42 or rolling oil 43 in close proximity.

A minimum amount of lubricant emulsion 42 can be introduced as a so-called additional application with a layer thickness 48 corresponding to the surface roughness of the rolled product surface 1 a of the rolled product 1 or rolled strip 1 b.

The different circumferential arcs of the work rolls 2 , 3 are divided into sections 44 . According to this distribution for the sections 44 of the rolling product entry side 4 , of the roll gap entry, of the roll entry, of the roll discharge, of the wedge roll-rolled product discharge and of the rolled product discharge side 5 respectively Lubrication, cooling, inerting and cleaning are coordinated with each other.

In this case, a minimum amount of lubrication is applied to the rolled product surface 1a in the rolled product inlet, and an inert gas or cryogenically cooled nitrogen gas is introduced into the roll gap 40 on the inlet side.

The nozzles are arranged closely in the nozzle block 47 and are now surrounded by cryogenically cooled inert gas. The lubricant emulsion 42 or rolling oil 43 or oil-free, Minimal quantity lubrication consisting of vaporized hydrocarbon residues.

Cryogenically cooled inert gas 41 is likewise introduced into section 44 of the wedge roll rolling product discharge.

In FIG. 2 is shown the above-mentioned method for cold rolling a metal rolled product 1, wherein the rolled product 1 passes a work roll pair 2 consisting of upper and lower work rolls 2, 3 for plastic deformation at processing temperature, The roll gap 40 of 3 is guided and for lubrication, cooling, cleaning towards the side 2a, 3a of the work rolls 2, 3 and/or the roll gap 40 and/or the rolling product 1 and for inerting towards the roll gap 40 and/or towards the The rolling products 1 are input from the nozzle rows 6a...22b respectively by low-temperature inert gas 41, by normal-temperature inert gas 41a, by lubricant emulsion 42 or by mixed rolling oil 43 or by oil-free, The group of jets consisting of vaporized hydrocarbons of the residue reduces the thickness of the rolled product 1 by less than about 10% on at least one last rolling stand of the tandem rolling line 23 . A rolled product 1 with a particularly clean and smooth rolled product surface 1 a can thus be processed in the tandem rolling line.

The rolled product 1 is cooled downstream of the penultimate rolling stand 24 by means of a coolant or lubricant emulsion 42 or rolling oil 43 or oil-free, vaporized hydrocarbons without residues. After the rolling product 1 has cooled, the coolant and lubricant emulsion 42 or rolling oil 43 can be removed in the extrusion train 26 by extrusion and/or by blowing.

The rolled product 1 can be cooled downstream of the penultimate rolling stand 24 by means of a coolant or lubricant emulsion 42 or rolling oil 43 or oil-free, residue-free vaporized hydrocarbons.

In the tandem rolling line 23 (or at the end of each other rolling line) after the strip cooling device 25 on the discharge side, ie after cooling the rolled product 1 by extrusion in the extrusion train 26 And/or the coolant and lubricant emulsion 42 or rolling oil 43 is removed by blowing in the blowing device 27 .

In order to protect the rolled product 1, lubricant emulsion 42 or rolling oil 43 or no The oily, residue-free evaporated hydrocarbons are then applied to the rolled product 1 or the work rolls 2, 3.

Furthermore, in the tandem rolling line 23 a device 32 for feeding an inerting medium and a device 30 for feeding an inerting medium, a device 31 for feeding a lubricant and aligning the roll gap are connected to the device 28 The device 32 for adding inert medium in the direction of 40. A device 29 for applying a minimum quantity of lubrication is then attached to the last roll pairs 2, 3 of the tandem rolling line 23. A device 33 for cooling/cleaning by applying a low-temperature coolant is located on the inlet side 4 and a device 34 for cooling/cleaning by applying a low-temperature coolant is located on the discharge side. At the end, the rolled product 1 is loaded by means of a cooling/cleaning device 35 by applying a low-temperature cooling medium.

An advantageous matrix diagram for the use and arrangement of medium jets for lubrication, cooling, cleaning and inerting is shown in FIG. 3 . Many such different matrices can be used.

list of reference signs

1 rolled product

1a Rolled product surface

1b Rolled strip

2 upper work roll

2a side

3 lower work roll

3a side

4 Entry side

5 discharge side

6a Nozzle row (rolled product entry side: clean)

6b Nozzle row (rolled product entry side: clean)

7a Nozzle row (rolled product entry side: cooling)

7b Nozzle row (rolled product entry side: cooling)

8a Nozzle row (rolled product entry side: lubrication)

8b Nozzle row (rolled product entry side: lubrication)

9a Nozzle row (roll gap entry side: lubrication)

9b Nozzle row (roll gap entry side: lubrication)

10a Nozzle row (roll gap entry side: cooling)

10b Nozzle row (roll gap entry side: cooling)

11a Nozzle row (roll gap entry side: clean)

11b Nozzle row (roll gap entry side: clean)

12a Nozzle row (roll gap entry side: inert)

12b Nozzle row (roll gap entry side: inert)

13a Nozzle row (roll entry side: lubrication)

13b Nozzle row (roll entry side: lubrication)

14a Nozzle row (roll entry side: cooling)

14b Nozzle row (roll entry side: cooling)

15a Nozzle row (roll entry side: clean)

15b Nozzle row (roll entry side: clean)

16a Nozzle row (roll discharge side: cooling)

16b Nozzle row (roll discharge side: cooling)

17a Nozzle row (roll discharge side: clean)

17b Nozzle row (roll discharge side: clean)

18a Nozzle row (roll gap discharge side: inert)

18b Nozzle row (roll gap discharge side: inert)

19a Nozzle row (roll gap discharge side: cooling)

19b Nozzle row (roll gap discharge side: cooling)

20a Nozzle row (roll gap discharge side: clean)

20b Nozzle row (roll gap discharge side: clean)

21a Nozzle row (rolled product discharge side: cooling)

21b Nozzle row (rolled product discharge side: cooling)

22a Nozzle row (rolled product discharge side: clean)

22b Nozzle row (rolled product discharge side: clean)

23 Tandem rolling line

24 Penultimate rolling stand

25 belt cooling device on the discharge side

26 extrusion unit

27 blowing device

28 Devices for applying minimum quantity lubrication

29 Devices for applying minimum quantity lubrication

30 Device for adding inert medium

31 Lubricating device

32 Device for adding inert medium

33 Devices for cooling/cleaning by applying cryogenic cooling medium

34 Devices for cooling/cleaning by applying cryogenic cooling medium

35 Devices for cooling/cleaning by applying cryogenic cooling medium

40 roll gap

41 low temperature inert gas

41a Normal temperature inert gas

42 lubricant emulsion

43 rolling oil

44 Section

45 side circumference

46 nozzle section

47 nozzle block

48 layers thick

Claims (21)

1. method that is used for cold rolled metal milling material (1), especially rolling band (1b), wherein said milling material (1) passes working roll pair (2 for plastic deformation under processing temperature; 3) roll seam (40) guiding and for lubricated, cooling, cleaning towards working roll (2,3) side (2a, 3a) and/or roll seam (40) and/or milling material (1) and for inerting towards the roll seam (40) and/or towards milling material (1) input respectively from each nozzle row (6a to 22b) respectively by the inert gas (41) of low temperature, by the inert gas (41a) of normal temperature, by lubricant emulsion (42), by mixed ROLLING OIL (43) or by there not being the beam that hydrocarbon oil, the noresidue evaporation is formed.

2. the method for claim 1 is characterized in that, described nozzle row (8a, 8b; 9a, 9b; 13a 13b) arranges (7a, 7b with the nozzle of low temperature inert gas (41); 10a, 10b; 14a, 14b; 16a, 16b; 19a, 19b; 21a 21b) closely arranges the ground input by lubricant emulsion (42), by ROLLING OIL (43) or the medium beam be made up of the hydrocarbon that no oily noresidue is evaporated.

3. method as claimed in claim 1 or 2, it is characterized in that described lubricant emulsion (42), ROLLING OIL (43) or the minimum of not having a hydrocarbon of oily noresidue evaporation apply importing by the bed thickness (48) corresponding to milling material (1) surface roughness with so-called adding.

4. as each described method in the claim 1 to 3, it is characterized in that, enter roll that portion, roll enter portion, wedge shape roll-milling material discharge portion for milling material approaching side (4), roll seam and discharge the intercept (44) of side (5) and milling material discharge side (5) lubricated, cooling, inerting and cleaning are coordinated mutually.

5. method as claimed in claim 4 is characterized in that, enters applying on milling material surface (1a) in the portion in MQL and the roll seam (40) at approaching side at milling material to add inert gas (N for example ₂).

6. as claim 4 or 5 described methods, it is characterized in that, by the inert gas (41) of low temperature surround ground add be applied in the approaching side roll seam (40) by lubricant emulsion (42) or ROLLING OIL (43) or by there not being the MQL that hydrocarbon oil, the noresidue evaporation is formed.

7. as each described method in the claim 4 to 6, it is characterized in that, in the intercept (44) of wedge shape roll-milling material discharge portion, add the inert gas (41) of low temperature.

8. the use of the method for cold rolled metal milling material, wherein milling material (1) passes working roll pair (2 for plastic deformation under processing temperature; 3) roll seam (40) guiding and for lubricated, cooling, cleaning is towards working roll (2,3) side (2a, 3a) and/or roll seam (40) and/or milling material (1) and for inerting towards the roll seam (40) and/or towards milling material (1) input respectively from each nozzle row (6a to 22b) respectively by the inert gas (41) of low temperature, inert gas (41a) by normal temperature, by lubricant emulsion (42) or by mixed ROLLING OIL (43) or by there not being oil, the beam that the hydrocarbon of noresidue evaporation is formed, the reduced thickness of milling material (1) is less than about 10% at least one of the last rolling machine frame of tandem roll line (24).

9. method as claimed in claim 8 is characterized in that, described milling material (1) in penultimate rolling machine frame back by cooling agent and lubricant emulsion (42) or ROLLING OIL (43) or there is not the hydrocarbon cooling of the noresidue evaporation of oil.

10. method as claimed in claim 8 or 9 is characterized in that, in milling material (1) cooling back by extruding and/or blow and remove cooling agent and lubricant emulsion (42) or ROLLING OIL (43).

11. as each described method in the claim 8 to 10, it is characterized in that, on milling material (1) or working roll (2,3), apply lubricant emulsion (42), ROLLING OIL (43) again or do not have the hydrocarbon that oily noresidue is evaporated in the extruding and/or the back of blowing in case of necessity with minimum.

12. as each described method in the claim 8 to 11, it is characterized in that, the cooling agent of inert gas (41) form of low temperature is joined the inside, roll seam (40) in last rolling machine frame front.

13. as each described method in the claim 8 to 11, it is characterized in that, can select lubricant emulsion (42) or ROLLING OIL (43) or the hydrocarbon of noresidue evaporation that do not have oil in last rolling machine frame front to surround and join inside the roll seam (40) with spraying on inert gas (41) the curtain internal spray ground of low temperature or by curtain.

14. as each described method in the claim 8 to 13, it is characterized in that, be applied to working roll (2 by inert gas (41) with low temperature, 3) and the wedge shape between the milling material (1) the inside or be applied to working roll (2,3) and/or apply milling material (1) and working roll (2,3) on the milling material (1).

15. in order to reduce and/or monitor the application of the method for regulated value cold rolled metal milling material (1), wherein milling material (1) passes working roll pair (2 for plastic deformation under processing temperature aspect the flatness adjusting of the work body of roll of heat; 3) roll seam (40) guiding and for lubricated, cooling, cleaning towards working roll (2,3) side (2a, 3a) and/or roll seam (40) and/or milling material (1) and for inerting towards the roll seam (40) and/or towards milling material (1) input respectively from each nozzle row (6a to 22b) respectively by the inert gas (41) of low temperature, by the inert gas (41a) of normal temperature, by lubricant emulsion (42) or by mixed ROLLING OIL (43) or by there not being the beam that hydrocarbon oil, the noresidue evaporation is formed.

16. method as claimed in claim 15 is characterized in that, additionally covers the flatness adjusting by lubricant emulsion (42) or ROLLING OIL (43) that applies cooling or the hydrocarbon that does not have oily noresidue evaporation.

17. be used for the rolling machine frame of cold rolled metal milling material (1), especially rolling band (1b), nozzle with the treatment media that is used for gas and/or liquid that is attached to working roll, it is characterized in that, go up and working roll (2 at sidepiece circumference (45) respectively for top working roll (2) and bottom working roll (3), 3) nozzle segment (46) of upper and lower settings is set opposed to each other, for clean, cool off, lubricated and/or inerting has alignment work roller (2,3) and/or the treatment media nozzle of milling material (1) row (6a, 6b...22a, 22b).

18. rolling machine frame as claimed in claim 17 is characterized in that, radially aims at nozzle row (13a, 14a, the 15a of top working roll (2) and bottom working roll (3); 13b, 14b 15b) is positioned on the approaching side (4).

19. as claim 17 and 18 described rolling machine frames, it is characterized in that, radially aim at nozzle row (16a, the 17a of top working roll (2) and bottom working roll (3); 16b, 17b) mirror image is symmetrically located at and discharges on the side (5).

20. as each described rolling machine frame in the claim 17 to 19, it is characterized in that, have the adjacent side (2a) of aiming at roll seam (40) respectively and aiming at upper and lower working roll (2,3) simultaneously, substantially with respect to milling material surface (1a) nozzle block (47) with 45 ° of extensions, they hold nozzle row (9a side by side, 10a, 11a, 12a and 9b, 10b, 11b, 12b).

21. as each described rolling machine frame in the claim 17 to 20, it is characterized in that, be arranged near the milling material (1) have respectively vertically from following and above the nozzle on aligning milling material surface (1a) arrange (6a, 7a, 8a; 6b, 7b, nozzle segment 8b) (46) are positioned on the approaching side (4) and have nozzle row (21a, 22a; 21b, nozzle segment 22b) (46) are positioned at and discharge on the side (5).

Images