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121.发明授权
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122.发明公开Method and equipment for automatic monitoring and correcting of the regulation pressure in the regulation valves of a variable-crown roll in a paper machine 有权用于自动监测和控制压力的校正以受控的偏转辊的控制阀用于造纸机的方法和装置
公开(公告)号：EP0926298A3
公开(公告)日：2000-04-26
申请号：EP98660140.9
申请日：1998-12-11
申请人： VALMET CORPORATION
发明人： Kivioja, Pekka , Lahtinen, Juha
CPC分类号： D21G1/022 , Y10T137/0396
摘要： The invention concerns a method and an equipment for automatic monitoring and correcting of the regulation pressure of the regulation valves in the regulation valve block in a variable-crown roll in a paper machine. The regulation pressure of the regulation valve in each regulation zone (Z1...Z24) in the regulation valve block can be connected alternatingly to a reference pressure detector (PT), whose measurement signal is compared with the measurement signal of the actual value of the regulation pressure in the regulation zone (Z1...Z24) concerned. The result of the comparison is stored on the page of monitoring of pressure detectors contained in the central computer system, on which page, in addition to said difference, the set values and actual values of the regulation zone pressures as well as the value of the reference measurement are given. In addition to this, a correction can be made to the actual value of the regulation pressure in the regulation zone (Z1...Z24) concerned if the difference between the measurement signal of the reference pressure detector (PT) and the measurement signal of the actual value of the regulation pressure in the regulation zone (Z1...Z24) concerned is higher than a pre-determined value.
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123.发明授权
公开(公告)号：EP0803009B1
公开(公告)日：2000-02-02
申请号：EP96934838.2
申请日：1996-10-17
申请人： VALMET CORPORATION
发明人： TELAMA, Ari
IPC分类号： D21F3/08
CPC分类号： D21F3/08 , C23C4/11 , C23C4/18 , Y10T29/49563
摘要： The invention concerns a method for the manufacture of a roll for use in the production of paper, in which method the roll is coated by means of thermal spraying. The method comprises the following steps: onto the coating (12) of the roll which has been produced by means of thermal spraying, a sealing-agent solution is spread to seal the pores (13) in the coating (12), the sealing-agent solution is allowed to be absorbed into the pores (13) in the coating (12), the roll is heated in order to eliminate the water from the sealing-agent solution, on elimination of the water, the sealing-agent solution crystallizes in the pores (13) in the coating (12), and the roll is allowed to cool. Further, the invention concerns a roll for use in the production of paper, which roll comprises a frame (10) and a roll coating (12), which coating (12) has been produced by means of thermal spraying. The coating (12) has been sealed by means of crystals formed out of a sealing-agent solution on elimination of water. Also, the invention concerns a coating for a roll for use in the production of paper, which coating (12) has been produced by means of thermal spraying, and in which coating (12) there are pores (13). In order to seal (12) the coating, a sealing agent (16) has been crystallized in the pores (13) in the coating (12).
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公开(公告)号：EP0731860B1
公开(公告)日：1999-12-29
申请号：EP95901464.8
申请日：1994-11-29
申请人： VALMET CORPORATION
发明人： KINNUNEN, Jorma
IPC分类号： D21H23/70
摘要： The method comprises threading the tail of a paper web (1) to be coated through a coating line during startup or web break, in which method an edge strip is slit from the web to act as the tail of the web which is first threaded through the line and then widened to the normal width of the web by moving the edge strip slitter. Said edge strip is first guided to a movable support element (12) located after the edge strip slitting point in the travel direction of the web (1) and the strip is supported against said movable support element (12) and is passed supported by said movable support element (12) to the next support element (14). A guiding/auxiliary support element (31) is brought to the discontinuity points of web support path and the edge strip is passed with the help of said auxiliary support element over the discontinuity and the edge strip is passed through the entire coating line supported by said sequential support elements (2, 12, 14, 18, 19, 22, 25) and said guiding/auxiliary support elements (31).
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125.发明公开Method in a reel-up in a grade change situation 有权AufwickelverfahrenwährendeinerQualitätsveränderung
公开(公告)号：EP0964099A2
公开(公告)日：1999-12-15
申请号：EP99660097.9
申请日：1999-06-02
申请人： VALMET CORPORATION
发明人： Aalto, Esa , Rautakorpi, Timo , Tiitta, Jari
CPC分类号： D21G9/0009 , D21F7/04
摘要： In a grade change situation in a continuously operated process of reeling a paper web, the grade of the paper web is changed in the paper manufacturing process preceding the reel-up by changes in the operations performed in this process, and the paper web of the new grade is introduced around a reel spool. The continuous web entering the reel-up is guided to form broke past the reeling process directly into a pulper located in connection with the reel-up at the same time when the grade of the paper web is being changed.
摘要翻译： 在连续操作纸幅卷取过程中的档次变化情况下，通过在该过程中执行的操作的变化，在卷取之前的纸张制造过程中纸幅的等级被改变， 新的等级被卷绕在卷轴上。 进入卷取机的连续卷筒被引导成形成在卷筒纸的档次改变的同时通过卷取过程直接进入与卷取机连接的碎浆机。
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126.发明公开
公开(公告)号：EP0944762A1
公开(公告)日：1999-09-29
申请号：EP98947588.0
申请日：1998-10-14
申请人： VALMET CORPORATION
IPC分类号： D21G1
CPC分类号： D21G1/0233
摘要： The invention concerns a method for manufacture of a calender roll provided with an elastic coating, in which method the roll frame is composed of a continuous axle (11) and of a filler material fitted onto the axle. In the invention, the filler material is made of a continuous profile band (13), which is wound onto the axle (11) as the desired number of windings in order to produce the desired roll diameter, in which connection an elastic coating is formed onto the cylindrical outer face of the filler material. The invention also concerns a calender roll manufactured in accordance with the method.
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公开(公告)号：EP0944761A1
公开(公告)日：1999-09-29
申请号：EP98947590.0
申请日：1998-10-14
申请人： VALMET CORPORATION
发明人： KOIVUKUNNAS, Pekka , TANI, Mikko , HASANEN, Kari
IPC分类号： D21G1
CPC分类号： D21G1/006 , D21G1/0066 , D21G1/0233
摘要： The invention concerns a calender provided with an extended nip for calendering of a paper or board web. The calender comprises at least one calendering nip (N), which is formed between a heatable hard roll (1) and a calendering belt (10) which has been formed as an endless loop and which is loaded against the heatable hard roll (1) by means of a backup roll (3) or a press shoe (24). The paper or board web (W) to be calendered is arranged to run through said calendering nip (N). According to the invention, in respect of at least a part of its thickness, the calendering belt (10) is made of a material of compressible volume. According to a second embodiment of the invention, the necessary resilience in the nip (N) is provided by means of a separate support belt, which runs underneath the calendering belt in relation to the web (W).
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公开(公告)号：EP0944470A1
公开(公告)日：1999-09-29
申请号：EP98942708.0
申请日：1998-09-04
申请人： VALMET CORPORATION
发明人： RATA, Ilkka , VESTOLA, Juha
CPC分类号： B29C70/025 , D21G3/005 , Y10T428/24174 , Y10T428/3154
摘要： The invention concerns a caring doctor blade for a paper/board machine, which blade comprises layers of fibreglass and carbon fibre and a caring layer as a rigid laminated structure, which caring layer comprises carbon fibres and grinding particles in direct vicinity of the carbon fibres. The orientation of the fibreglass layers is parallel to the longitudinal axis of the blade, and at least in some of the layers that contain carbon fibre the orientation of the carbon fibres is substantially diverging from the direction of the longitudinal axis of the blade. The invention also concerns a method for manufacture of a doctor blade for a paper/board machine by means of a pultrusion method.
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公开(公告)号：EP0943033A1
公开(公告)日：1999-09-22
申请号：EP97913213.0
申请日：1997-11-24
申请人： VALMET CORPORATION
发明人： HUOVILA, Jyrki , KINNUNEN, Juha , LINSURI, Ari , NYBERG, Petri
摘要： The invention concerns a multi-layer headbox (10) for a paper/board machine, comprising stock inlet headers (J1, J2...) for the stocks (M1, M2...). The inlet headers communicate with a tube tank (11) and through the tube bank with an intermediate chamber (E1, E2...), from which the stock flows further into the turbulence generator (12) and through the pipes (12a1.1, 12a1.2..., 12a2.1, 12a2.2...) in the turbulence generator (12) further into the slice cone (13) and onto the forming wire (H). The multi-layer headbox comprises, across the width of the headbox, distribution valves (V1, V2...) for dilution water, each of which distribution valves (V1, V2...) communicates with a distribution plate (16) placed in connection with the tube bank (11), in which connection, from one valve (V1, V2...), the dilution liquid is distributed at the same time to at least two of the stocks (M1, M2...) that from the different layers of the web in the multi-layer headbox.
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130.发明公开TAKE-OUT LEADING ROLL, SPREADER ROLL, OR EQUIVALENT FOR A WEB-LIKE MATERIAL 失效ENTNAHMEWALZE，BREITSTRECKWALZE ODER DERGLEICHENFÜRBAHNFÖRMIGESMATERAL
公开(公告)号：EP0937005A1
公开(公告)日：1999-08-25
申请号：EP97911256.0
申请日：1997-10-30
申请人： VALMET CORPORATION
CPC分类号： F16C13/003 , B65H23/0258 , B65H27/00 , B65H2404/1371 , B65H2404/171
摘要： The invention concerns a take-out leading roll, spreader roll, or equivalent for a web-like material, which roll comprises a non-revolving roll axle (12a, 12b) and a continuous and tubular roll mantle (11) journalled revolvingly by means of bearings (14, 15) on said roll axle. The roll can be bent to the shape of the desired arc so that the roll axle consists of three parts linked with one another, i.e. of two end parts (12a) and of a middle part (12b), which are pivotal in relation to one another for the purpose of bending the roll mantle (11). The roll mantle (11) is journalled on the roll axle exclusively in the areas of the roll ends by means of bearings (14, 15) supported on the end parts (12a) of the axle. The material of the roll mantle (11) is preferably a composite material.
摘要翻译： 用于卷筒状材料的取出导辊，扩展辊或等效物，其包括具有端部的端部和位于端部之间的中间部分的非旋转辊轴，以及连续和管状的辊式地幔， 滚动轴并在端部和中间部分延伸。 中间部分枢转地连接到端部部分，以使辊能够弯曲成所需的弓形形状。 优选地，滚动地幔仅在辊轴的区域中被轴承支承在辊轴的端部上的轴承上。 辊套的材料优选为复合材料。
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