CN201924229U - Calendar - Google Patents
Calendar Download PDFInfo
- Publication number
- CN201924229U CN201924229U CN 201020505898 CN201020505898U CN201924229U CN 201924229 U CN201924229 U CN 201924229U CN 201020505898 CN201020505898 CN 201020505898 CN 201020505898 U CN201020505898 U CN 201020505898U CN 201924229 U CN201924229 U CN 201924229U
- Authority
- CN
- China
- Prior art keywords
- roll
- breadth
- calender
- contact
- roll gap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000000481 breast Anatomy 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 238000013016 damping Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000000123 paper Substances 0.000 abstract description 15
- 239000011087 paperboard Substances 0.000 abstract description 3
- 238000003490 calendering Methods 0.000 description 17
- 238000000576 coating method Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 239000011111 cardboard Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000005325 percolation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/006—Calenders; Smoothing apparatus with extended nips
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/0066—Calenders; Smoothing apparatus using a special calendering belt
Landscapes
- Paper (AREA)
Abstract
The utility model relates to a calendar provided with a breadth running path (3). The breadth running path is used for a paper web or a paper board web (2) to run through a first roll clearance (4) and a second roll clearance (5), the length of a first contact area (6), which extends along a breadth running direction (10), of the first roll clearance is at least 100mm, the maximum length of a second contact area (7) of the second roll clearance (5) is 50mm, a first contact surface (4.1) of the first roll clearance and a first contact surface (5.1) of the second roll clearance are identical and belong to a central roll (11), and a second contact surface (5.2) of the second roll clearance consists of a second mill roll (12). The calendar has the advantages that in order to improve mutual independence between the roll clearances and realize processing of breadths in a multi-aspect manner, a), the breadth running path (3) extends accordingly so that the web is abutted onto the second mill roll (12) capable of adjusting the temperature after passing through at least one 50-degree wrap angle (16), and b), each of included angles (21) formed by centers of respective contact areas of the two roll clearance (4 and 5) and acting planes (8 and 9) defined by a center axis of the central roll (11) ranges from 75 degrees to 105 degrees.
Description
Technical field
The utility model relates to a kind of calender that has the breadth operating path, this breadth operating path is used for first and second roll gaps of paper web or board web operation through first and second contact-making surfaces that have circulation respectively, wherein, described breadth can be processed under pressurization and/or the situation of heating in the contact zone of each roll gap, and first contact zone of described first roll gap has at least 100 millimeters length along the breadth traffic direction, and second contact zone of described second roll gap has maximum 50 millimeters length along the breadth traffic direction, wherein, first contact-making surface of described first roll gap is identical with first contact-making surface of described second roll gap and belong to breast roll, and second contact-making surface of described second roll gap is made of second roll.
Background technology
Developed the method for the multiple goods breadth (Warenbahn) that can constitute by paper or cardboard by the calendering of so-called wide roll gap calender in the past.At this, the contact zone of calendering goods breadth is not that the stationary roll by two mutual extrusion forms, but a kind of like this device has been installed, it can be at goods breadth traffic direction, be so-called paper line vertically or MD (=machine direction) form lengthening, for example greater than 100 millimeters roll gap.The purpose of all methods all is the good effect for the surface quality that realizes improving breadth, and the thickness loss of not expecting that will occur between this simultaneously reduces to minimum, reasonably to reach one less than the value that produces in traditional roll calender.
Use a roll gap additional, elastic belt that partly hold roll just can be realized lengthening on roll, so that the lengthening contact zone.This belt can be made of plastics or metal.Perhaps generate the roll gap of lengthening by so-called boots formula roller, in this boots formula roller towards a static state of roll pressed, the depression moulding and by the element of soft rotation outer cover parcel.
Long contact zone in the wide roll gap calender, the short-and-medium contact zone of roll calender obviously differently acts on the breadth.
There are four important factor in order that influence the calendering of goods breadth in principle.They be compression, transmission in the roll gap heat, with the surface quality of the contact-making surface of breadth and breadth in contained humidity.At this, short roll gap produces active influence to the macro-asperity (thickness fluctuation of long wave) of main reference measuring method Bendtsen.When improving the asperity of describing by calendering measurement PPSs10, long roll gap has bigger effect on the contrary.
Will be understood that,, can more heat be introduced breadth by wide roll gap because the time of staying is longer.Yet also strengthened thus unexpected after roll gap, act on the danger of the evaporation on the goods breadth devastatingly.Be understandable that equally, in short contact zone, can import bigger pressure,, also bring the thickness loss of not expecting in principle though this pressure generally gives higher glossiness of goods breadth and smoothness preferably.Especially in the calender of many rolls, paper web face or paper/paper sheet breadth are obviously compressed.
The utility model relates to a kind of calender, and the roll gap that both had been provided with broad on the breast roll of this calender also has narrower roll gap.This device is open by for example DE102007024581A1, and open by Fig. 1 and Fig. 2 especially herein.For producing long roll gap, utilize part to hold the metal tape of roll.Short roll gap is made of respective roller.The shortcoming of shown device is, uses two long roll gaps, and wherein second roll gap should be introduced breadth with heat as small as possible, and this realizes by belt that cooling constitutes second contact-making surface of the 3rd roll gap.Therefore, can not cause so-called rapid evaporation (Flashverdampfung).But because breadth continues to abut on the breast roll of heat, so only can could realize this hope by disadvantageous high cooling capacity on use energy technologies on the belt.
WO 2009/077643A1 discloses a kind of metal belt calender, and it forms longer roll gap on the breast roll with metal tape.Second roll and belt also abut on the breast roll opposed to each other, and two rolls form the roll gap that another is used for breadth jointly.Second roll be one can not temperature adjustment, have a roll of elastic surface.In this case, forming the pressure executed than second roll in short roller crack is inevitable to the influence of the pressure distribution in the longer roll gap that is formed by belt.On the contrary, itself change lessly in the thickness profile of belt, and the pressure pulse that produces on breast roll thus is to producing negative influence than the pressure cross section in the short roller crack.
Summary of the invention
Technical problem to be solved in the utility model is, prior art is improved a kind of calender that has a long roll gap and a short roller crack on breast roll so relatively, so that in two roll gaps than utilizing the calendering parameter in the past more independently: pressure and temperature, and can handle breadth many-sidedly.
This technical problem is by a kind of calender solution that has the breadth operating path and combine two characteristics, this breadth operating path is used for first and second roll gaps of paper web or board web operation through first and second contact-making surfaces that have circulation respectively, wherein, described breadth can be processed under pressurization and/or the situation of heating in the contact zone of each roll gap, and first contact zone of described first roll gap has at least 100 millimeters length along the breadth traffic direction, second contact zone of described second roll gap has maximum 50 millimeters length along the breadth traffic direction, wherein, first contact-making surface of described first roll gap is identical with first contact-making surface of described second roll gap and belong to breast roll, and second contact-making surface of described second roll gap is made of second roll.Described calender has two characteristics:
At first, first characteristics are, described breadth operating path extends like this, makes breadth at least through one 50 °, and preferred at least 70 ° cornerite abuts on second roll that can regulate temperature.In this way, can cool off according to hope unilaterally or the heating breadth before or after second roll gap and in second roll gap.The common method of heated roll it is known to the person skilled in the art that and comprises with hot temperature adjustable fluid and carry out inner percolation and carry out external heat by inductance or hot-air.Similarly, the cooling means of known roll, it comprises the percolation that carries out roll with cooling fluid, and dries with the cooling air.Second characteristic regulation, two roll gaps are in 75 ° to 105 ° angle respectively by the action plane along the axis definition of the center, contact zone of breadth traffic direction and breast roll.Therefore, almost can get rid of pressure in first or second roll gap and change any influence another roll gap.
Therefore, obtain structure calender especially compact, that have second roll gap of first wide roll gap and weak point.However, still can in two roll gaps, regulate pressure and temperature to a great extent independently of each other.
Especially advantageously, action plane is in 90 ° angle.Pressure direction in roll gap no longer includes meaning fully to the pressure cross section of regulating in another roll gap so.The pressure cross section is interpreted as the pressure traverse perpendicular to the breadth traffic direction herein.
But the preferred center roller is temperature adjustment equally.Realize possibility that another breadth side is also heated accordingly or cools off by this way.The temperature that adjusting abuts in the breadth side on the breast roll can improve calendering efficient.
Advantageously, if second contact-making surface of first roll gap is made of the belt that circulates.This belt for example can be made by plastics or steel.Under the simplest situation, this belt moves around three deflector rolls, and adjacent with a part of circumferential sectors of breast roll, so that form long contact zone, and is formed for the roll gap of the length of breadth thus.By the controllability of deflector roll, the equipment pressure of the length of contact zone and belt can be designed as and can change.
Advantageously guarantee, but second contact-making surface of first roll gap is made of the metal tape of temperature adjustment for this reason.Produce the 3rd possibility that influences the breadth temperature thus.Metal tape is significantly than the easier temperature adjustment of the plastic tape that generally has less thermal conductance and insulation.At this, also be contemplated that induction installation and blowing device.According to breadth should a side calendering still be the both sides calenderings, can be except heating second roll or improve the temperature of metal tape, or improve the temperature of breast roll.Under first kind of situation, need to consider whether set flexible coating to breast roll, make that second roll gap is soft roll gap.This has improved the even compacting of breadth.Under second kind of situation, but can abandon the advantage of belt heating property in case of necessity, and replace belt by the boots formula roller that has elastic outer cover.
There are two kinds of possibilities that cross calender.Selectively can design the breadth operating path like this, make breast roll before or after being arranged in second roll on the breadth traffic direction.At this, the technical staff must determine according to different situations, that is, decide on the paper web of answering calendering and the kind of board web.
If belt is with greater than 50 °, preferred at least 70 ° cornerite contact breast roll, and the heat transmission on second roll should be high as much as possible, and then the S-shaped winding breast roll of breadth operating path and second roll are favourable with reclining.What still need consider is, in order to design calender, in spool being routed to of the axle of breast roll and second roll is level, the vertical or angle plane inclined with other.
Advantageously, if the breadth operating path can pass through on both direction.This makes can freely select papery to be processed.The paper of some kind and cardboard, it preferably at first abuts on second roll that has heated with a big cornerite, so that evenly heating preferably to be guided this paper and cardboard through soft roll gap or hard roll gap in order calibrating afterwards, and should to be carried out refining on the metal tape of heating at last.On the other hand, the paper of other kinds and cardboard, it is both sides calendering heatedly in the first long roll gap for example, is compacted in short roll gap subsequently, should be cooled on second roll at last.In a word, provide the possibility of multiple breadth processing by calender of the present utility model at this.
This calender has damping device at the inlet of breadth, is particularly advantageous.Paper web or board web through humidification can be by calenderings in higher quality.At this, known in the prior art have the nozzle humidifier of the very little little drop of the size that can infiltrate breadth rapidly and can allow that the obvious bigger water yield liquefies on breadth, to the very useful atomizing humidifier of the known moist gradient calendering of professional and technical personnel (Moisture Gradient Calendering).
Description of drawings
Followingly further set forth the utility model according to each form of implementation and with reference to accompanying drawing, in the accompanying drawings:
Fig. 1 is the schematic diagram by calender of the present utility model that has the breadth operating path from breast roll to second roll, and
The schematic diagram that has breadth operating path that Fig. 2 is by calender of the present utility model from second roll to breast roll.
The specific embodiment
In two accompanying drawings as seen by a kind of calender 1 that has its surface for the breast roll 11 of circulating contact-making surface 4.1,5.1 of the present utility model.In first roll gap 4, constitute first contact zone by another circulating contact-making surface 4.2.
Form second contact zone 7 of expression second roll gap 5 at 90 ° of the circumference superior displacements of breast roll by the contact-making surface 5.2 of second roll 12.
The length of first contact zone 6 surpasses 100 millimeters (along the circumferential direction), and the length of second contact zone 7 is less than 50 millimeters.
According to this form of implementation, the surface of the metal tape 13 that detours by circulation in first roll gap 4 provides second contact-making surface 4.2.Replace, also can use plastic tape or same boots formula roller known in the prior art, surpass 100 millimeters bearing length because this boots formula roller also can produce.Equipment pressure in the first long roll gap is generally 0.05 and 5N/mm
2Between.
Metal tape is by 14 guidings of belt deflector roll.This deflector roll has an adjusting device (representing with band Reference numeral 20 arrows on two belt deflector rolls).Which belt deflector roll 14 to have this adjusting device 20 on and decide, can change the length of contact zone, and can determine the equipment pressure of metal tape 13 on the breast roll 11 by this adjusting device.
For breadth 2 is carried out the bilateral heating in the first long contact zone 6, can perhaps also can for example pass through induction heating apparatus 18.1 heating metal strips 13 for example internally by hot-fluid heating breast roll 11.
Also can input or output heat to second roll 12; That is to say that but this second roll 12 is temperature adjustments.In Fig. 1, represent for example induction heating apparatus or cooling fan by chest 18.2.Can regulate the temperature of roll 12 internally equally well by heat carrier flow.For the treatment articles breadth, at this possibility of a lot of influences is arranged, because 2 at least 50 ° of breadths, preferably at least 70 ° of ground parcel second rolls.Through so big circumferential sectors, apply or remove a lot of heats can for this breadth.In Fig. 1, cornerite is by arrow 16 expressions.
It is normally significant that deflector roll 11,12 has coating 17.For the reason of technology, can consider for example flexible coating at this.If the second roll rubber-like coating 17, then second roll gap 5 can become a soft roll gap.But selectively, set the good especially coating 17 of a heat conduction also can for roll 12.Advantageously, if the compression in second roll gap 5 obviously surpasses the compression in first roll gap 4, especially preferably 10 to 30N/mm
2Scope in.
If a damping device 19 was set before calender 1, then nearly all papery and the more easily calendering of cardboard quality.Outside the known effect of thermograde calendering, also be accompanied by the known effect of gradient of moisture calendering.This only causes wet surface to be flattened, and has continued to keep the internal volume of breadth 2.
Be that two roll gaps define so-called action plane 8,9.Along the circumferential direction lay described each action plane through the center of roll gap respectively with the axis of breast roll 11.Therefore, the equipment pressure in the contact zone 6,7 affact on each pressure traverse with influencing each other as few as possible, and the angle 21 between two action plane is not less than 75 °, and is not more than 105 °.Certainly this angle is preferably 90 °.
Big difference is breadth traffic direction 10 differences between two attached Fig. 1 and 2.In Fig. 1, breadth at first moves through the first long contact zone 6, subsequently through the second too short contact zone 7, also abuts on second roll 12 in whole S-shaped breadth operating path 3 afterwards.In Fig. 2, use identical calender 1.S shape yet breadth 2 at first passes through breadth slewing rollers 15, contact with second roll 12 once more, passes the second short contact zone 7 afterwards, and finally handles in the first long contact zone 6 at last.It should be noted that, an air extrusion device (Luftabquetschvorrichtung) that is provided with in the mode of not describing can be guaranteed can not embed boundary layer of air between the surface of the breadth 2 and second roll 12, thereby quite advantageously improves the thermal conductivity factor between breadth 2 and the roll 12.The method of operation is relevant with the type of paper or paper web to a great extent.
Obviously also can be with arranging before and after a plurality of calenders, so that the both sides of breadth are abutted on the breast roll once.Can more in depth carry out calendering like this.
List of numerals
1 calender
2 paper webs or board web (are called for short: breadth)
3 breadth operating paths
4 first roll gaps
4.1, the contact-making surface of 4.2 first roll gaps
5 second roll gaps
5.1, the contact-making surface of 5.2 second roll gaps
6 first contact zones
7 second contact zones
The action plane of 8 first roll gaps
The action plane of 9 second roll gaps
10 breadth traffic directions
11 breast rolls
12 second rolls
13 belts, metal tape
The deflector roll of 14 belts
The deflector roll of 15 breadths
16 cornerites
17 coatings
18.1,18.2 induction heating apparatuses or cooling fan
19 damping devices
20 adjusting devices
Angle between 21 action plane
Claims (11)
1. calender that has breadth operating path (3), this breadth operating path is used for paper web or board web (2) is moved through having first and second contact-making surfaces (4.1 of circulation respectively, 4.2,5.1,5.2) first and second roll gaps (4,5), wherein, described breadth (2) is at each roll gap (4,5) contact zone (6,7) can be processed under pressurization and/or the situation of heating in, and first contact zone (6) of described first roll gap (4) has at least 100 millimeters length along breadth traffic direction (10), second contact zone (7) of described second roll gap (5) has maximum 50 millimeters length along breadth traffic direction (10), wherein, first contact-making surface (4.1) of described first roll gap (4) is identical with first contact-making surface (5.1) of described second roll gap (5) and belong to a breast roll (11), and second contact-making surface (5.2) of described second roll gap (5) is made of second roll (12), it is characterized in that
A) described breadth operating path (3) extends like this, so that described breadth (2) abuts on second roll (12) that can regulate temperature through one 50 ° cornerite (16) at least, and
B) described two roll gaps (4,5) is in 75 ° to 105 ° angle (21) respectively by the action plane (8,9) along the axis definition of the center, contact zone of breadth traffic direction (10) and described breast roll (11).
2. calender as claimed in claim 1 is characterized in that, described cornerite (16) is at least 70 °.
3. calender as claimed in claim 1 or 2 is characterized in that, described action plane (8,9) is in 90 ° angle (21).
4. calender as claimed in claim 1 or 2 is characterized in that, the temperature of described breast roll (11) can be regulated.
5. calender as claimed in claim 1 or 2 is characterized in that, second contact-making surface (4.2) of described first roll gap (4) is made of tape loop.
6. calender as claimed in claim 5 is characterized in that, second contact-making surface (4.2) of described first roll gap (4) but constitute by the metal tape (13) of temperature adjustment.
7. calender as claimed in claim 1 or 2 is characterized in that, described breast roll (11) is arranged in described second roll (12) before along breadth traffic direction (10).
8. calender as claimed in claim 1 or 2 is characterized in that, described second roll (12) is arranged in described breast roll (11) before along breadth traffic direction (10).
9. calender as claimed in claim 1 or 2 is characterized in that, S-shaped the reclining of described breadth operating path (3) twined described breast roll (11) and described second roll (12).
10. calender as claimed in claim 1 or 2 is characterized in that, described breadth operating path (3) can pass through on both direction.
11. calender as claimed in claim 1 or 2 is characterized in that, is provided with a damping device (19) along breadth traffic direction (10) before at described calender (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009028857.0 | 2009-08-25 | ||
| DE200910028857 DE102009028857A1 (en) | 2009-08-25 | 2009-08-25 | calender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201924229U true CN201924229U (en) | 2011-08-10 |
Family
ID=43502960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020505898 Expired - Fee Related CN201924229U (en) | 2009-08-25 | 2010-08-25 | Calendar |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2295632B1 (en) |
| CN (1) | CN201924229U (en) |
| DE (1) | DE102009028857A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011077969A1 (en) | 2011-06-22 | 2012-12-27 | Voith Patent Gmbh | Device for controlling temperature of motion path moving fibrous web in calender, has band that is provided on temperature-controlled roll or guide roll in axial direction for pressing fibrous web against temperature-controlled roll |
| DE102011081228A1 (en) | 2011-08-19 | 2013-02-21 | Voith Patent Gmbh | Method for detecting original state of smooth surface exhibiting belt for belt calender, involves guiding belt of machine using guide rolls to manufacture and/or treat web, and monitoring acoustic measurement accomplished in region of belt |
| DE102012209736A1 (en) | 2012-06-11 | 2013-12-12 | Voith Patent Gmbh | calender |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8328354D0 (en) * | 1983-10-24 | 1983-11-23 | Black Clawson Int | Surface treatment of paper and paperboard |
| DE102007024581A1 (en) | 2007-05-25 | 2008-11-27 | Voith Patent Gmbh | Calender, has two paper or cardboard web handling units with two contact surfaces and current paper or cardboard strip under pressure or temperature impact is processed between contact surfaces of each paper or cardboard web handling unit |
| FI20075919L (en) | 2007-12-17 | 2009-06-18 | Metso Paper Inc | Metal strap calendar |
-
2009
- 2009-08-25 DE DE200910028857 patent/DE102009028857A1/en not_active Withdrawn
-
2010
- 2010-06-21 EP EP20100166646 patent/EP2295632B1/en not_active Not-in-force
- 2010-08-25 CN CN 201020505898 patent/CN201924229U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP2295632B1 (en) | 2012-06-20 |
| EP2295632A1 (en) | 2011-03-16 |
| DE102009028857A1 (en) | 2011-03-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4653395A (en) | Method and apparatus in the calendering of a web | |
| CN100371529C (en) | Treatment device for treating a coated or uncoated fibrous web | |
| FI95939B (en) | Method for polishing a paper web | |
| CA2285301C (en) | Calendering method and a calender that makes use of the method | |
| CA2285291C (en) | Calendering method and a calender that makes use of the method | |
| KR100411866B1 (en) | Method and apparatus for calendering a papaer or board web | |
| EP2063021B1 (en) | Belt assembly and paper- or board making machine comprising the belt assembly | |
| US8415595B2 (en) | System, apparatus, and method for induction heating using flux-balanced induction heating workcoil | |
| CN105378180B (en) | How to make cellophane | |
| CN201924229U (en) | Calendar | |
| CN102099527B (en) | Calender for treating a product web | |
| US6689993B2 (en) | Method and device for induction heating a roll | |
| US20060021249A1 (en) | Cross-machine flow and profile control for through-air devices treating permeable webs | |
| CN117355647A (en) | Method and apparatus | |
| CN102713058A (en) | Calender for smoothing a paper web | |
| US5983787A (en) | Method for calendering a paper web and a calendar that makes use of the method | |
| FI115235B (en) | Method and apparatus in calendering | |
| FI101985B (en) | Method and apparatus for drying fiber web | |
| US7662262B2 (en) | Supercalendering optimization using a steam shower | |
| CN107964823A (en) | A kind of calendering method of single side bloom art paper | |
| EP1910615B1 (en) | Method and apparatus for drying a moving web of material at a paper or board machine | |
| EP2722436A1 (en) | Belt assembly in a machine for making and/or finishing a fibrous web and use of the belt assembly for moving a web to a dryer section of a paper- or board-making machine | |
| CN1768180B (en) | Apparatus and method for manufacturing paper or board and thus manufactured paper or board | |
| JP2011519407A (en) | System and method for reducing current out of a roll through a bearing | |
| CN110446811A (en) | Breadth processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20140825 |
|
| EXPY | Termination of patent right or utility model |