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公开(公告)号:CA2226508C
公开(公告)日:2006-05-23
申请号:CA2226508
申请日:1996-07-25
Applicant: SUNDS DEFIBRATOR IND AB
Inventor: SCHEDIN KURT , LUNDGREN GORAN , SISLEGARD LARS-OTTO , SJODIN KJELL
Abstract: A method for the continuous production of boards having a lignocellulosic fiber material wherein the material is broken up into particles and/or fibers that are dried, glued and formed and pressed to a finished board. The mat is pre-compressed while steam is introduced in such a limited amount during the pre-compression that the temperature of the fibrous mat increases to a value within an interval of 60-95 .degree.Celsius. In this way, the spring back characteristics of the fiber m at is reduced so that its resistance to compression is reduced and the thickness can be reduced more in the pre-compression while the temperature i s not so high to initiate a curing process.
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公开(公告)号:AR003012A1
公开(公告)日:1998-05-27
申请号:AR10371096
申请日:1996-07-24
Applicant: SUNDS DEFIBRATOR IND AB
Inventor: ERIKSSON N LENMART , LUNDGREN GOERAN , SISLEGARD LARS-OTTO , SJODIN KJELL
Abstract: Un método para la producción contínua de tablas de material de fibra lignocelulósica caracterizado porque el material se deshace en partículas y/ofibras que se secan,encolan,y forman una estera que se prensa hasta formar una tabla terminada de modo que se introduce vapor. De acuerdo con la presenteinvención, el vapor se introduce en cantidad limitada en un primer paso de inyección. Esta cantidad se regula de forma que el vapor sólo penetra, calientay cura la capa superficial de la estera. Así, se obtiene una tabla que tenga una capa superficial con una mayor densidad que la capa central de forma que lasiguiente compresión de calibración provee un mayor espesor que permite que la capa central se expanda a la vez que se mantiene la densidad de las capassuperficiales.
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公开(公告)号:AU6539496A
公开(公告)日:1997-02-26
申请号:AU6539496
申请日:1996-07-25
Applicant: SUNDS DEFIBRATOR IND AB
Inventor: ERIKSSON N LENNART , LUNDGREN GORAN , SCHEDIN KURT , SJODIN KJELL
Abstract: PCT No. PCT/SE96/00974 Sec. 371 Date Jan. 26, 1998 Sec. 102(e) Date Jan. 26, 1998 PCT Filed Jul. 25, 1996 PCT Pub. No. WO97/04932 PCT Pub. Date Feb. 13, 1997Methods for the continuous production of compressed board from lignocellulosic fibrous material are disclosed. The methods include providing the lignocellulosic fibrous material in the form of particles or fibers, drying, gluing and forming the lignocellulosic fibrous material into the form of a mat, and compressing the mat in the presence of steam in a single step which includes applying a compression roller to the mat and applying steam through the compression roller.
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公开(公告)号:AR002930A1
公开(公告)日:1998-04-29
申请号:AR10370896
申请日:1996-07-24
Applicant: SUNDS DEFIBRATOR IND AB
Inventor: LUNDGREN GORAN , SCHEDIN KURT , SISLEGARD LARS-OTTO , SJODIN KJELL
Abstract: Un método para la producción contínua de tablas de material de fibra lignocelulósica caracterizado porque el material se deshace en partículas y/ofibras que se secan encolan, moldean y prensan para formar una tabla terminada. La estera se pre-comprime mientras se introduce vapor en una cantidad limitadatal durante la pre-compresión que la temperatura de la estera fibrosa aumenta a un valor comprendido entre los 60 y los 95°C. De esta manera, se reducen lascaracterísticas de retorno al estado anterior de forma que disminuye su resistencia a la compresión y el espesor puede ser de 2 a 5 veces el espesorfinal de la tabla.
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公开(公告)号:ZA966392B
公开(公告)日:1997-02-13
申请号:ZA966392
申请日:1996-07-26
Applicant: SUNDS DEFIBRATOR IND AB
Inventor: LUNDGREN GORAN , SCHEDIN KURT , SJODIN KJELL , SISLEGARD LARS-OTTO
Abstract: PCT No. PCT/SE96/00973 Sec. 371 Date Jan. 26, 1998 Sec. 102(e) Date Jan. 26, 1998 PCT Filed Jul. 25, 1996 PCT Pub. No. WO97/04931 PCT Pub. Date Feb. 13, 1997Methods for the continuous production of compressed board are disclosed including drying lignocellulosic fibrous material, gluing the lignocellulosic fibrous material, forming a mat, and pre-compressing the mat by controllably adding steam to the mat in an amount such that the temperature of the mat is increased to between about 60 and 90 DEG C.
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公开(公告)号:MY132237A
公开(公告)日:2007-09-28
申请号:MYPI9603004
申请日:1996-07-22
Applicant: SUNDS DEFIBRATOR IND AB
Inventor: ERIKSSON N LENNART , LUNDGREN GORAN , SISLEGARD LARS-OTTO , SJODIN KJELL
Abstract: A METHOD OF THE PRODUCTION OF BOARDS OF A LIGNOCELLULOSIC FIBROUS MATERIAL WHEREIN A MATERIAL IS BROKEN UP INTO PARTICLES AND/OR FIBERS THAT ARE DRIED, GLUED AND FORMED TO A MAT AND PRESSED TO A FINISHED BOARD SO THAT STEAM IS INTRODUCED TO BE MAT. ACCORDING TO THE PRESENT INVENTION, THE STEAM IS INTRODUCED IN A LIMITED AMOUNT IN A FIRST INJECTION STEP. THIS AMOUNT IS ADJUSTED SO THAT THE STEAM ONLY PENETRATES INTO, HEATS AND CURES THE SURFACE LAYER OF THE MAT. THUS, A BOARD HAVING A SURFACE LAYER WITH A HIGHER DENSITY THAN A MIDDLE LAYER IS OBTAINED SO THAT THE SUBSEQUENT CALIBRATION COMPRESSION PROVIDES A GREATER THICKNESS THAT PERMITS THE MIDDLE LAYER TO EXPAND WHILE THE DENSITY OF THE SURFACE LAYERS IS MAINTAINED.
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公开(公告)号:CA2226385C
公开(公告)日:2006-12-12
申请号:CA2226385
申请日:1996-07-25
Applicant: SUNDS DEFIBRATOR IND AB
Inventor: SJODIN KJELL , SCHEDIN KURT , ERIKSSON N LENNART , LUNDGREN GORAN
Abstract: A method for the continuous production of boards of a ligno-cellulosic fiber material wherein the material is broken up into particles and/or fibers. These are dried, glued and formed to a mat. The mat is compressed to a finished board while steam is introduced. According to the present invention, the compression is performed as a single step and the steam is introduced through one or many compression rollers. By injecting steam in this way a sufficient cure is obtained to withstand the spring back characteristics inherent of the fibers so that it is possible to obtain a finished thickness of the board with one single compression step.
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公开(公告)号:AU6539596A
公开(公告)日:1997-02-26
申请号:AU6539596
申请日:1996-07-25
Applicant: SUNDS DEFIBRATOR IND AB
Inventor: ERICSSON N LENNART , LUNDGREN GORAN , SISLEGARD LARS-OTTO , SJODIN KJELL
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公开(公告)号:MY132236A
公开(公告)日:2007-09-28
申请号:MYPI9603003
申请日:1996-07-22
Applicant: SUNDS DEFIBRATOR IND AB
Inventor: LUNDGREN GORAN , SCHEDIN KURT , SISLEGARD LARS-OTTO , SJODIN KJELL
Abstract: A METHOD FOR THE CONTINUOUS PRODUCTION OF BOARDS HAVING A LIGNOCELLULOSIC FIBER MATERIAL WHEREIN THE MATERIAL IS BROKEN UP INTO PARTICLES AND/OR FIBERS THAT ARE DRIED, GLUED AND FORMED AND PRESSED TOA FINISHED BOARD. THE MAT IS PRE-COMPRESSED WHILE STEAM IS INTRODUCED IN SUCH A LIMITED AMOUNT DURING THE PRE-COMPRESSION THAT THE TEMPERATURE OF THE FIBROUS MAT INCREASES TO A VALUE WITHIN AN INTERVAL OF 60-95° CELCIUS. IN THIS WAY, THE SPRING BACK CHARACTERISTICS OF THE FIBER MAT IS REDUCED SO THAT ITS RESISTANCE TO COMPRESSION IS REDUCED AND THE THICKNESS CAN BE REDUCED MORE IN THE PRE- COMPRESSION WHILE THE TEMPERATURE IS NOT SO HIGH TO INITIATE A CURING PROCESS.
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公开(公告)号:PL324651A1
公开(公告)日:1998-06-08
申请号:PL32465196
申请日:1996-07-25
Applicant: SUNDS DEFIBRATOR IND AB
Inventor: LUNDGREN GOERAN , ERIKSSON LENNART N , SISLEGARD LARS-OTTO , SJODIN KJELL
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