CN102535231B - Method for improving vibration restoration, coating, press element, and restoring method - Google Patents
Method for improving vibration restoration, coating, press element, and restoring method Download PDFInfo
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- CN102535231B CN102535231B CN201110342601.7A CN201110342601A CN102535231B CN 102535231 B CN102535231 B CN 102535231B CN 201110342601 A CN201110342601 A CN 201110342601A CN 102535231 B CN102535231 B CN 102535231B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/08—Pressure rolls
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0233—Soft rolls
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Abstract
The invention provides a method for improving vibration restoration, a coating, a press element, and a restoring method, and relates to a press element for improving rotation of a fiber web machine, and particularly a method for vibration restoration of a roller (9), wherein, the press element (9) is provided with an elastic coating (10), which comprises a base layer (120) made of a polymer material suitable for being mounted on the body (130) of the press element and a surface layer (110) made of a polymer material as a wearing layer on top of the base layer, and where the surface layer (110) comprises an outer surface (100) as the outermost radial point. The radial modulus of elasticity of the surface layer (110) beneath the outer surface (100) of the coating (10) is adjusted to a level lower than the radial modulus of elasticity of the outer surface (100). The invention also relates to a coating, a fiber web press element, and a method for restoring the coating and the fiber web press element.
Description
Technical field
The present invention relates to a kind of for improve fiber web machine rotation compressed elements vibration restorative (vibration resilience) method, coating (coating), compressed elements and for repairing the method for (reconditioning) coating or compressed elements.Especially, the present invention relates to the composite coating of (but being not limited to) a kind of roller for fiber web machine being formed by multiple layers, and be used to form the method for this composite coating being formed by multiple layers.
Background technology
In the machinery (as paper machine) of carrying web, use roller coating flexible, polymerizable material, this coating is for example used on guide reel or is used as the surface of the formation nip of pressure roller, and this pressure roller is for removing moisture or be used to web surface to provide the gluing and film transfer and calendaring technology of finishing (polishing) characteristic from web.The required characteristic having of composite roll coating in paper machine generally includes ABRASION RESISTANCE and enough strength characteristicies.Except these characteristics, especially, in newer multiple pressure district calender, the factor of a limitation performance is the ability of so-called stupefied (barring) phenomenon of opposing of coating.With regard to maneuverability (runnability), product quality and paper machine are safeguarded aspect, this stupefied phenomenon can cause serious problem, and this how will prevent the reason place that this phenomenon occurs by any feasible means.Playing stupefied phenomenon is because the self-holding vibration (self-sustained vibration) occurring in calender causes.This vibration is subject to various factors, as the characteristic of the feedback of mechanical resonance, load above and composite coating used.
Conventionally by suppressing resonance, reach by service property (quality) attenuator (mass attenuator) or by the operational factor of adjusting calender the object that has prevented stupefied phenomenon by better design and material.In the application relevant to nip, due to improving constantly of speed, load and temperature, cause producing the possibility that play stupefied phenomenon relevant with elastic coating and increase.And this stupefied phenomenon causes vibration to be increased to the degree that need to change prematurely coating gradually.Now made characteristic that multiple effort improves composite coating to obtain the better recovery (resilience) of having resisted stupefied phenomenon, as by the measure of employing high filler content, this measure can reduce the deformation of coating and improve its ABRASION RESISTANCE.
Play stupefied phenomenon and be conventionally derived from outside coating, but that suitable coating characteristic can prevent is in advance stupefied.For the generation that plays stupefied phenomenon whether, viscoplasticity (viscoelastic) characteristic that the variable factor wherein existing is coating.Empirical evidence, ABRASION RESISTANCE raising also makes the cycle of operation extend.In the time of the shorter Measuring Time of operation under the condition in the intrinsic frequency scope of nip, it is relatively widely known adjusting viscoelastic property role, but to viscoelastic behavior (viscoelastic behaviour) and in long period of operation the variation of this viscoelastic behavior understand less.
By forming harder coating (it has higher elastic modelling quantity), can significantly reduce the wearing and tearing of coating and the accumulation of vibration.As widely known, this can be by adopting the matrix raw material of rigidity more (existing elastic modelling quantity different multiple rubber, PU (polyurethane), epoxy resin and thermoplastic available), higher filer content or the reinforcing fiber of rigidity more, and adopt on the other hand higher reinforcing fiber content to realize.But, in view of the feature of technique, there is a best coating hardness scope for a specific application, this how can not unrestrictedly improve the reason place of the elastic modelling quantity of coating.For example, in gluing process, advantageously on roller, use soft coating, the elastic modelling quantity of this type coating can not be too high.On the other hand, in burnishing process, advantageously use the sufficient roller coating of elasticity, to make calender nip unlikely too short, and on the other hand, make press polish operation compress paper in full and uniform mode.As widely known, during press polish, in coating, be mainly, in the top layer that rigidity is lower, deformation occurs.
The elastic coating using in nip is generally made up of two or more layers, conventionally makes the hardness of lower floor be greater than the hardness on top layer.U.S. Patent bulletin US 5887517 has described an example of the coating that is structured in this layering on roll body, and wherein, in the time increasing with the distance of metal roll body processed, the layer connecing near these layers is softer; In other words, the hardness of coating radially reduces gradually.
U.S. Patent bulletin US 5023985A has described a kind of roller that has polymer coating, and its outer surface is provided with a coating, and this coating is than the thin thickness several times of above-mentioned softer polymer coating.
The scheme of prior art can not can prevent the generation of stupefied phenomenon in all cases very fully, this means a principal element of the maneuverability of the stupefied application that becomes restriction nip.
Summary of the invention
According to the first scheme of the present invention, the present invention proposes a kind of for improving the restorative method of vibration of compressed elements, particularly roller of rotation of fiber web machine, wherein this compressed elements has elastic coating, this elastic coating comprises: the bottom of being made by polymeric material, and this bottom is located on the body of this compressed elements; And the top layer of being made by polymeric material, this top layer as wearing layer be positioned at this bottom above, and this top layer comprises the outer surface as outermost radial point, and wherein the radial elastic modulus of this top layer below the outer surface of this coating is adjusted to the level of the radial elastic modulus that is less than this outer surface.
Preferably, the radial elastic modulus of this bottom is adjusted to the level of the radial elastic modulus that is less than this outer surface.
Preferably, between this top layer and this bottom, be provided with intermediate layer, this intermediate layer is radially softer than this top layer.
Preferably, the inside (in other words i.e. the bottom on this top layer) that the radially most external on this top layer (in other words i.e. the top that extends to 0.2 to 1mm the degree of depth from this surface on this top layer) is configured to this top layer of hardness ratio radially hardness is radially larger, and this bottom is radially below this top.Preferably, the bottom that the top that extends to 0.2 to 1mm the degree of depth from this surface on this top layer is configured to this top layer of hardness ratio radially hardness large 15 to 20% radially.
Preferably, by means of the heat treatment on the top for this top layer, adopt the temperature of the preferred temperature that initial heat treatment adopts higher than this top layer, this top of hardening.
Preferably, the composition that radiation reacts to UV or additive are added in the polymeric material on this top layer, and make this top can pass through natural UV radiation hardening, or by UV this top of processing to harden.
Preferably, by the outer surface on sol-gel hardening process (sol-gel hardening) this top layer of hardening.
Preferably, be higher than the temperature in this outer surface or higher than the temperature in the top on this top layer by the Temperature Setting in the bottom on this top layer, make temperature difference corresponding to being the goal discrepancy (targeted difference) making in the softer required elastic modelling quantity in Bi Gai top, this bottom.
Preferably, this bottom is set to hierarchy, wherein, utilizes the rigid layer of continuous fibers strengthening and the inferior rigid layer (less rigid layer) that utilizes discontinuous fibre strengthening to alternate.
Preferably, the layer below this top layer is provided with matrix polymer (matrix polymer), and this matrix polymer has compare with this top layer little elastic modelling quantity and higher loss factor (loss factor).
Preferably, the thermal conductivity of above-mentioned layer below this top layer is adjusted to the thermal conductivity higher than this top layer.
Preferably, between this top layer and this bottom, be provided with an intermediate layer, this intermediate layer has the thermal conductivity higher than this top layer.
Preferably, in above-mentioned layer below this top layer, use carbon fiber or heat filling, to obtain better thermal conductivity.
Preferably, the thermal conductivity of this bottom is set to the thermal conductivity higher than this top layer.
According to alternative plan of the present invention, the present invention proposes a kind of compressed elements of the rotation for fiber web machine, elastic coating especially for roller, wherein this elastic coating comprises: the bottom of being made by polymeric material, and this bottom is fixedly arranged on the body of compressed elements of fiber web machine; And the top layer of being made by polymeric material, this top layer is formed as the wearing layer above this bottom, and this top layer comprises the outer surface as outermost radial point, and the radial elastic modulus of its mesexine below this coating outer surface is less than the radial elastic modulus of this outer surface.
Preferably, the polymeric material in this top layer is polyurethane.Preferably, the polymeric material in this top layer is epoxy resin.
Preferably, the radial elastic modulus of this bottom is less than the radial elastic modulus of this outer surface.
Preferably, between this top layer and this bottom, be provided with intermediate layer, this intermediate layer is radially softer than this top layer.
Preferably, the bottom that the top on this top layer is set to this top layer of hardness ratio radially hardness is radially larger, and wherein this top extends to 0.2 to 1mm the degree of depth from this outer surface, and this bottom is radially below this top.Preferably, the bottom that the top that extends to 0.2 to 1mm the degree of depth from this outer surface on this top layer is configured to this top layer of hardness ratio radially hardness large 15 to 20% radially
Preferably, make this top sclerosis by means of the heat treatment on the top to this top layer.
Preferably, in the polymeric material on this top layer, add and have pair composition that UV radiation reacts or additive as light trigger (photoinitiator), and harden by UV radiation in this top layer.
Preferably, harden by sol-gel hardening process in the surface on this top layer.
Preferably, utilize the material that is sol-gel form that is applied over this top layer to process the outer surface on this top layer.This material can be the sol-gel that contains Si compound.Can allow this material to be absorbed, and can be by this skin drying at the temperature for example raising.
Preferably, this bottom is set to hierarchy, wherein, utilizes the rigid layer of continuous fibers strengthening and the inferior rigid layer that utilizes discontinuous fibre strengthening to alternate.
Preferably, the layer below this top layer is provided with matrix polymer, and this matrix polymer has compare with this top layer little elastic modelling quantity and higher loss factor.
Preferably, the thermal conductivity of above-mentioned layer below this top layer is higher than the thermal conductivity on this top layer.
Preferably, in above-mentioned layer below this top layer, can use carbon fiber or heat filling, to obtain better thermal conductivity.
Preferably, the polymeric material at least using in the top layer of this elastic coating is made up of polyurethane, polyureas or epoxy resin.
According to third party's case of the present invention, the present invention proposes a kind of fiber web machine compressed elements, particularly roller, and wherein this compressed elements comprises according to the coating described in some scheme of the present invention or embodiment.
According to cubic case of the present invention, the present invention proposes a kind of for repairing according to the method for the coating described in some scheme of the present invention or embodiment, or for repairing according to the method for the fiber web machine compressed elements described in some scheme of the present invention or embodiment, in the method, along radially a part of outer surface on this top layer being removed to lower than the deepest point wearing and tearing of this coating, and the outer surface of the exposure on this top layer of hardening.
The wearing and tearing of coating and the on the other hand accumulation of vibration, can significantly be slowed down and need not be changed in fact the optimal hardness of roller.Requiring in the harsh application relevant to nip, as in multiple pressure district calender and film shifting process, the accumulation that plays stupefied phenomenon can be retarded.
According to the multiple schemes and the embodiment that describe in the application, the solution of the present invention can be used in and realizes a kind of compound coating structure, and therefore this coating structure energy damped vibration also has better recuperability to playing stupefied phenomenon.The present invention from thering is the application of fiber web machine of nip for example from calender, eliminated to the relevant vibration of stupefied phenomenon, and provide significant advantage for having controlled stupefied (phenomenon), and provide significant advantage for improving current manufacturing technique and further developing web Manufacturing Technology Development therefrom.
According to some embodiment of the present invention, can realize the coating with the roller for fiber web machine of longer service life compared with the coating of prior art.According to some embodiment, can improve the ABRASION RESISTANCE of coating, and can obtain thus the scheme of the coating with longer maintenance period.
The wearing and tearing of coating and the on the other hand accumulation of vibration, can significantly be slowed down and need not be changed in fact the optimal hardness of roller.
Explanation to embodiment to be described, or that described of the present invention is only consistent with certain scheme of the present invention or some schemes, the any embodiment that those skilled artisans will appreciate that any scheme of the present invention all can be applied in same scheme of the present invention and other scheme with independent mode or with the mode that other embodiment is combined.
Brief description of the drawings
By example, the present invention is described below in conjunction with accompanying drawing, in the accompanying drawings:
Fig. 1 to Fig. 3 illustrates some preferred coatings that form around the body of roller; And
Fig. 4 to Fig. 6 illustrates the function as the variable quantity of the elastic modelling quantity on top layer, the theoretic diagram example of the variable quantity of the deformation on top layer and the variable quantity of deformation energy.
Detailed description of the invention
In the following description, identical Reference numeral refers to identical parts.It should be noted, the accompanying drawing providing is not drawn completely in proportion, and these accompanying drawings are mainly only for demonstrating some embodiments of the present invention.
Fig. 1 to Fig. 3 shows some coatings 10 that form around the body 130 of roller 9.Body 130 is preferably hollow, but this body can be also solid.Composite coating 10 can be used to improve the damping capacity of coating, and has reduced thus the generation of stupefied phenomenon.
In Fig. 1, coating 10 comprises: top layer 110, and its outer surface indicates with Reference numeral 100; And bottom 120, it attaches to body 130.In single coating fabrication stage, this top layer is preferably formed as individual layer.This top layer is preferably around this bottom and forms.According to the example in Fig. 1, vibration damping composite roll coating can be embodied as, the top 111 (degree of depth that reaches 0.2 to 1mm is extended on this top from outer surface 100) on the top layer 110 of coating 10 is set to harder than the bottom on this top layer 110 112, this top layer 110 is as the wear surface of this coating.Frontier district between hard top 111 and softer bottom 112 indicates with the chain-dotted line 110 ' that traverses this top layer and extend.Top layer 110 is preferably made up of homogenous material.The top 111 on top layer 110 forms diametrically around bottom 112.Till 0.2 to 1mm the degree of depth, the hardness on the top 111 on the top layer 110 of coating 10 is preferably than the hardness of the bottom on top layer 110 112 large 15 to 20%.Preferred the first modulus hierarchical approaches (modular gradation) of coating 10 is as follows: the hard top 111 on top layer 110; The bottom 112 on top layer, 112Bi top 111, its middle and lower part is soft; And bottom 120, this bottom if required (but inessential) is harder than bottom 112.
In Fig. 2, coating 10 comprises: top layer 110, and its outer surface indicates with Reference numeral 100; Bottom 120, it attaches to body 130; And intermediate layer 115.This intermediate layer 115 is formed between top layer and bottom.Several intermediate layers 115 can be set.According to Fig. 2, preferred the second modulus hierarchical approaches of coating 10 is as follows: the hard top 111 on top layer 110; The bottom 112 on top layer, 112Bi top 111, its middle and lower part is soft; Intermediate layer 115, this intermediate layer if required (but inessential) is softer than bottom 112; And bottom 120, this bottom if required (but inessential) is harder than bottom 112.Intermediate layer 115 is preferably made up of the material different from the material on top layer 110.According to an embodiment, it is hard according to the top layer 110 of Fig. 1 setting that intermediate layer 115 is formed as beguine, and the modulus formation of its mesexine 110 is classified to from 111Dao bottom, top 112 and becomes more and more softer.According to another embodiment, the modulus formation in intermediate layer 115 is classified to softer than top layer 110.According to another embodiment, intermediate layer 115 is formed has the thermal conductivity higher than this top layer.
The impact of the higher heat-conductivity of each layer of the inside of coating 10 is below described in more detail, and the impact of the potential heating of each layer of the inside of vibration dampening characteristic based on coating.
In Fig. 3, coating 10 comprises: top layer 110, and its outer surface indicates with Reference numeral 100; And bottom 120, it attaches to body 130.This top layer forms around this bottom or on this bottom.120 layer 121 of bottom and layer 122 alternate and form, and its middle level 121 is made up of the strengthening material that comprises continuous fibers, and layer 122 is made up of the strengthening material that comprises discontinuous fibre.The compound bottom 120 of coating 10 can be used in the vibration damping (performance) that improves coating, thereby and has reduced the generation of stupefied phenomenon.The hardness on this top layer can be equally distributed.In certain embodiments, top layer 110 can have modulus hierarchical approaches as shown in Figure 1.
In nip contact, the maintenance of roller that use, that be coated with polymer and milling cycle are generally that the degree being improved by the level of vibration of the degree of the uneven wear of coating or/and roller determines.Now notice, for vibration, in the time that coating is provided with a thinner layer (being generally 0.2 to 1mm), the increase of the level of vibration of applied roller can be since the starting point of a low level of vibration.Hence one can see that, and the aggravation of vibration results from the variation (fatigue) of material behavior of coating surface, results from the other hand the variation of surface configuration.For wearing and tearing, the impact of grinding is inappreciable.
In the time utilizing finite element algorithm inspection work coating, compare with the work coating in prior art with identical modulus (module), total deformation quantity of the coating 10 shown in Fig. 1 to Fig. 3 can not change substantially, wherein tangentially with the thickness direction (thickness direction=direction of extrusion of coating, deformation quantity identical (+/-2%) radially), but because original state is higher, therefore can give the fatigue softening (fatigue softening) of the outer surface 100 of precoat 10, preferably give the fatigue softening on top 111 on top layer 110 with remarkable longer work period.
Fig. 4 illustrates in top layer the variable quantity of deformation tangentially on the longitudinal axis with percentage form, and the variable quantity of elastic modelling quantity is shown with percentage form on transverse axis.Fig. 5 illustrates in top layer the variable quantity of deformation radially on the longitudinal axis with percentage form, and the variable quantity of elastic modelling quantity is shown with percentage form on transverse axis.Fig. 6 illustrates the variable quantity of the deformation energy in top layer on the longitudinal axis with percentage form, and the variable quantity of elastic modelling quantity is shown with percentage form on transverse axis.Fig. 4 to Fig. 6 shows the first curve 20, the second curve 21 and the 3rd curve 22, and they are examples of three different work coatings.
Fig. 4 to Fig. 6 shows, the deformation quantity in top layer 100,111 has been softened as little to 5%, and deformation energy in top layer 100,111 increases rapidly.Meanwhile, top layer is because tired continuation softened.Harder second surperficial benefit is that deformation energy reduces, and this has reduced wearing and tearing and vibration in essence.But, in the time that this surperficial elastic modelling quantity exceeds 20%, deformation starts to concentrate on more significantly the bottom 112 on top layer 110 and the inner side part of coating 112,115,120, in the case, disadvantage may be, in the time for example repairing compressed elements (coating) by grinding, compare with the work coating in prior art with identical modulus, need to remove more overbrushing layer.
For the decay of vibration and and then for having prevented stupefied phenomenon, advantageously in one or more layer below outer surface 100, also there is deformation.
Being exemplified as of layer below outer surface 100: bottom 112 (Fig. 1 and Fig. 2), intermediate layer 115 (Fig. 2) and the bottom 120 (Fig. 3) on top layer.In the case, the layer of a major part of the deformation energy of the nip under load below the outer surface 100 on top layer 110 is delivered to, and can reduce the stupefied permanent deformation that caused in nip.By suitably selecting layer 110,115 and 120 the modulus hierarchical approaches of coating 10, when coating 10 is in its length of life during because of grinding attenuation, with use the structure of prior art (in this structure, when in the time that the body 130 of roller moves, the elastic modelling quantity of coating material successively increases progressively) to compare, the variable quantity of nip length can reduce.
The total principle proposing is: in the top layer 110 of coating 10, radially (along the direction of extrusion) elastic modelling quantity (hardness) of the layer on (or below top 111) below outer surface 100 is adjusted to the level lower than radially (along the direction of extrusion) elastic modelling quantity (hardness) of the outer surface on this top layer.In other words the higher elastic modelling quantity that the top layer 110 of coating 10 can be set by multitude of different ways is the higher elastic modelling quantity of wearing layer.The higher elastic modelling quantity of top layer 110 layer below can be set by multitude of different ways in addition, and optionally.
A kind of simple mode is the heat treatment of coating 10, utilize the heat treatment for outer surface 100, by " tempering " top 111 being close to the outer surface 100 of top layer 110 (wearing layer) of hardening, and heat treatment and for example grinding, in conjunction with repeatedly carrying out (Fig. 1 and Fig. 2).This " tempering " can, only for outer surface 100 and the top 111 of coating 10, adopt with the initial heat treatment phase on this surface/top layer than higher temperature.
Another kind of mode is to use the coating material that radiation reacts to UV, makes top 111 harden(ing)by itself under natural daylight on top layer 110, and this can process (for example Fig. 1 and Fig. 2) by UV independently and strengthens.
The third mode is by sol-gel hardening process harden outer surface 100 and top 111, for example, be hardened to and be less than thickness 10 μ m.
The 4th kind of mode is the condition of work of control roll, make temperature in the bottom 112 on top layer 110 higher than the temperature in outer surface 100 and top 111, or the temperature in the inner side part 115,120 of coating 10, higher than the temperature in outer surface 100 and top 111, makes temperature difference corresponding to the goal discrepancy in elastic modelling quantity thus.For example, top layer 110 that can chill roll, or/and can heat the inner side part 115,120 of bottom 112/ coating on top layer 110.
The 5th kind of mode that the structure of vibration damping outer surface 100 layer is below set is to use hierarchy in bottom 120, this hierarchy comprise utilize rigid layer 121 that continuous fibers strengthens and with the rigid layer inferior rigid layer 122 (Fig. 3) that utilizes discontinuous fibre to strengthen arranging that alternates.This structure can keep the intensity of bottom 120, improves the deformability of this structure simultaneously, and therefore improves vibration damping.By bottom 120 is reeled as mixed structure, can easily manufacture the vibration damping composite coating 10 of this structure, in above-mentioned mixed structure, comprise the braiding strengthening layer of continuous fibers and comprise that the bed course (mat) of discontinuous fibre alternates.
Except said structure, the 6th kind of mode that the structure of vibration damping outer surface 100 layer is below set is that (for example, in the bottom 120 in Fig. 1 and Fig. 3 example) uses matrix polymer in the layer below top layer 110, and this matrix polymer is applicable to for damping behavior.Wherein this matrix polymer can be different from the matrix polymer on top layer 110.The matrix polymer of bottom 120 for example can have less elastic modelling quantity, and its loss factor (tan d) can be larger than the loss factor on top layer 110, and in the case, bottom can absorb deformation energy better, and damped vibration thus.
Because bottom is near metal roll body processed, the conduction of heat in bottom is better than top layer, and therefore compared with top layer 110, in bottom 120, to be converted into the problem of heat energy so not large for deformation energy.According to some embodiment, the heat conduction in bottom is also that than the better reason in top layer the fiber content of those layer (Fig. 3) utilizing continuous fibers reinforcement in bottom 120 is high.Different from functional top layer, in bottom 120, also can obtain better thermal conductivity with carbon fiber or heat filling.Carbon fiber and heat filling can be used as independent layer and use or be attached in overall fabric.Heat filling used can be for example metallic particles or pulverous aluminium nitride, or can utilize metal to process (treat applies) fiber.In bottom 120, can use aramid fibre (aramid fiber) to obtain toughness.Aramid fibre and carbon fiber can be used as a kind of mixed structure and use.Under low cost condition, can use glass fibre.Glass fibre can be metallized (be for example coated with nickel or be coated with silver) to improve thermal conductivity.
A kind of is in bottom or intermediate layer, to use the flexible particle such as microsphere for the modulus in the modulus of bottom or intermediate layer being adjusted into lower than the selection scheme of the modulus on top layer.For example the glass marble or the phenol ball that are filled with air or are filled with gas can be mixed in fiber-reinforced material or matrix polymer.
Above explanation provides the indefiniteness example of some embodiments of the present invention.To those skilled in the art, the present invention is obviously not limited to above-mentioned details, and on the contrary, the present invention can also utilize other method being equal to implement.Can utilize some feature of proposed embodiment, and not use other feature simultaneously.
This class declaration should only be regarded as the description to principle of the present invention above, and should not be regarded as limitation of the invention, and therefore protection scope of the present invention is only limited by the patent claims of enclosing.
Claims (29)
1. one kind for improving the restorative method of vibration of compressed elements (9) of rotation of fiber web machine, wherein this compressed elements (9) has elastic coating (10), this elastic coating comprises: the bottom (120) of being made by polymeric material, and this bottom is located on the body (130) of this compressed elements, and the top layer of being made by polymeric material (110), this top layer as wearing layer be positioned at this bottom above, and this top layer (110) comprise the outer surface (100) as outermost radial point, the radial elastic modulus of this top layer (110) below the outer surface (100) of this coating (10) is adjusted to the level of the radial elastic modulus that is less than this outer surface (100), it is characterized in that, the bottom (112) that the top (111) on this top layer (110) is set to this top layer of hardness ratio (110) radially hardness is radially larger, wherein this top (111) extend to 0.2 to 1mm the degree of depth from this outer surface (100), this bottom (112) is radially below this top (111).
2. the method for claim 1, is characterized in that, the radial elastic modulus of this bottom (120) is adjusted to the level of the radial elastic modulus that is less than this outer surface (100).
3. the method for claim 1, is characterized in that, between this top layer (110) and this bottom (120), is provided with intermediate layer (115), and this intermediate layer is radially softer than this top layer (110).
4. method as claimed in claim 2, is characterized in that, between this top layer (110) and this bottom (120), is provided with intermediate layer (115), and this intermediate layer is radially softer than this top layer (110).
5. the method for claim 1, is characterized in that, described compressed elements is roller.
6. the method as described in any one in claim 1 to 5, it is characterized in that, the bottom (112) that the top (111) on this top layer (110) is configured to this top layer of hardness ratio (110) radially hardness is radially large 15 to 20%, and wherein this top (111) extend to 0.2 to 1mm the degree of depth from this outer surface (100).
7. the method as described in any one in claim 1 to 5, it is characterized in that, by means of the heat treatment of the top for this top layer (110) (111), adopt the temperature higher than the temperature that initial heat treatment adopts of this top layer (110), this top of hardening.
8. the method as described in any one in claim 1 to 5, it is characterized in that, the composition that radiation reacts to UV or additive are added in the polymeric material of this top layer (110), and make this top (111) can pass through natural UV radiation hardening, or by UV this top of processing to harden.
9. the method as described in any one in claim 1 to 5, is characterized in that, by the harden outer surface (100) of this top layer (110) of sol-gel hardening process.
10. the method as described in any one in claim 1 to 5, it is characterized in that, be higher than the temperature in this outer surface (100) or higher than the temperature in the top (111) on this top layer by the Temperature Setting in the bottom of this top layer (110) (112), make temperature difference corresponding to being the goal discrepancy making in the softer required elastic modelling quantity in Bi Gai top, this bottom.
11. methods as described in any one in claim 1 to 5, it is characterized in that, this bottom (120) is set to hierarchy, wherein, utilizes the rigid layer (121) of continuous fibers strengthening and the inferior rigid layer (122) that utilizes discontinuous fibre strengthening to alternate.
12. methods as described in any one in claim 1 to 5, it is characterized in that, layer (115,120) below this top layer (110) is provided with matrix polymer, and this matrix polymer has compare with this top layer little elastic modelling quantity and higher loss factor.
13. methods as described in any one in claim 1 to 5, is characterized in that, the thermal conductivity of the layer (115,120) below this top layer (110) is adjusted to the thermal conductivity higher than this top layer.
14. methods as described in any one in claim 1 to 5, is characterized in that, use carbon fiber or heat filling, to obtain better thermal conductivity in the layer (115,120) below this top layer (110).
The elastic coating (10) of 15. 1 kinds of compressed elements for the rotation of fiber web machine (9), wherein this elastic coating comprises: the bottom (120) of being made by polymeric material, and this bottom is fixedly arranged on the body (130) of the compressed elements of this fiber web machine, and the top layer of being made by polymeric material (110), wherein this top layer is formed as the wearing layer above this bottom, and this top layer comprises as the outer surface of outermost radial point (100), the radial elastic modulus of this top layer (110) below the outer surface (100) of this coating (10) is less than the radial elastic modulus of this outer surface (100), it is characterized in that, the bottom (112) that the top (111) on this top layer (110) is set to this top layer of hardness ratio (110) radially hardness is radially larger, wherein this top (111) extend to 0.2 to 1mm the degree of depth from this outer surface (100), this bottom (112) is radially below this top (111).
16. coatings as claimed in claim 15, is characterized in that, the polymeric material of this top layer (110) is polyurethane.
17. coatings as claimed in claim 15, is characterized in that, the polymeric material of this top layer (110) is epoxy resin.
18. coatings as claimed in claim 15, is characterized in that, described compressed elements is roller.
19. coatings as described in any one in claim 15 to 18, is characterized in that, the radial elastic modulus of this bottom (120) is less than the radial elastic modulus of this outer surface (100).
20. coatings as described in any one in claim 15 to 18, it is characterized in that, between this top layer (110) and this bottom (120), be provided with intermediate layer (115), this intermediate layer is radially softer than this top layer (110).
21. coatings as described in any one in claim 15 to 18, is characterized in that, make this top sclerosis by means of the heat treatment of the top for this top layer (110) (111).
22. coatings as described in any one in claim 15 to 18, is characterized in that, add and have pair composition that UV radiation reacts or additive, and harden by UV radiation in this top layer in the polymeric material of this top layer (110).
23. coatings as described in any one in claim 15 to 18, is characterized in that, harden by sol-gel hardening process in the surface (100) of this top layer (110).
24. coatings as described in any one in claim 15 to 18, it is characterized in that, this bottom (120) is set to hierarchy, wherein, utilize the rigid layer (121) of continuous fibers strengthening and the inferior rigid layer (122) that utilizes discontinuous fibre strengthening to alternate.
25. coatings as described in any one in claim 15 to 18, it is characterized in that, layer (115,120) below this top layer (110) is provided with matrix polymer, and this matrix polymer has compare with this top layer little elastic modelling quantity and higher loss factor.
26. coatings as described in any one in claim 15 to 18, is characterized in that, the thermal conductivity of the layer (115,120) below this top layer (110) is higher than the thermal conductivity on this top layer.
27. coatings as described in any one in claim 15 to 18, is characterized in that, use carbon fiber or heat filling, to obtain better thermal conductivity in the layer (115,120) below this top layer (110).
28. 1 kinds of fiber web machine compressed elements (9), it comprises according to claim 15 to the coating (10) described in any one in 27.
29. 1 kinds for repairing according to claim 15 to the coating (10) described in 27 any one or for repairing the method for fiber web machine compressed elements according to claim 28, it is characterized in that, along radially a part of outer surface (100) of this top layer (110) being removed to lower than the deepest point wearing and tearing of this coating (10), and the outer surface of the exposure on this top layer of hardening (100).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20106122A FI20106122A (en) | 2010-10-28 | 2010-10-28 | PROCEDURE FOR IMPROVING TOLERANCE OF VIBRATION ON A ROTATING PRESSURE ORGANIZATION OF A FIBER COVER, COATING, PRESSURE OR PROCEDURE TO ENSURE A COATING OR PRESSURE ORGANIZATION |
| FI20106122 | 2010-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102535231A CN102535231A (en) | 2012-07-04 |
| CN102535231B true CN102535231B (en) | 2014-10-01 |
Family
ID=43064280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110342601.7A Expired - Fee Related CN102535231B (en) | 2010-10-28 | 2011-10-28 | Method for improving vibration restoration, coating, press element, and restoring method |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2447416B1 (en) |
| CN (1) | CN102535231B (en) |
| FI (1) | FI20106122A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104340647B (en) * | 2014-10-11 | 2017-01-18 | 滕州力华米泰克斯胶辊有限公司 | Rubber roller running state monitoring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447600A (en) * | 1966-09-23 | 1969-06-03 | Sw Ind Inc | Construction of roll for machinery and the manufacture thereof |
| US5023985A (en) * | 1989-02-28 | 1991-06-18 | Valmet Paper Machinery Inc. | Coated roll for a paper making machine |
| US5887517A (en) * | 1997-10-24 | 1999-03-30 | Beloit Technologies, Inc. | Multiple hardness roll cover |
| EP1363034A1 (en) * | 2002-05-13 | 2003-11-19 | Voith Paper Patent GmbH | Elastic smoothing roll and it's production method |
| EP1659216A1 (en) * | 2004-11-19 | 2006-05-24 | Schäfer KG | Roll for the production of a web, in particular for the dewatering of pulp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6409645B1 (en) * | 1997-06-13 | 2002-06-25 | Sw Paper Inc. | Roll cover |
-
2010
- 2010-10-28 FI FI20106122A patent/FI20106122A/en not_active Application Discontinuation
-
2011
- 2011-10-17 EP EP11185417.0A patent/EP2447416B1/en not_active Not-in-force
- 2011-10-28 CN CN201110342601.7A patent/CN102535231B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447600A (en) * | 1966-09-23 | 1969-06-03 | Sw Ind Inc | Construction of roll for machinery and the manufacture thereof |
| US5023985A (en) * | 1989-02-28 | 1991-06-18 | Valmet Paper Machinery Inc. | Coated roll for a paper making machine |
| US5887517A (en) * | 1997-10-24 | 1999-03-30 | Beloit Technologies, Inc. | Multiple hardness roll cover |
| EP1363034A1 (en) * | 2002-05-13 | 2003-11-19 | Voith Paper Patent GmbH | Elastic smoothing roll and it's production method |
| EP1659216A1 (en) * | 2004-11-19 | 2006-05-24 | Schäfer KG | Roll for the production of a web, in particular for the dewatering of pulp |
Also Published As
| Publication number | Publication date |
|---|---|
| FI20106122A (en) | 2012-04-29 |
| EP2447416B1 (en) | 2015-03-18 |
| EP2447416A1 (en) | 2012-05-02 |
| FI20106122A0 (en) | 2010-10-28 |
| CN102535231A (en) | 2012-07-04 |
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| Date | Code | Title | Description |
|---|---|---|---|
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| PB01 | Publication | ||
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Espoo, Finland Applicant after: Veimeide Technology Co., Ltd. Address before: Helsinki Applicant before: Metso Paper Inc. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: METSO PAPER INC. TO: VEIMEIDE TECHNOLOGY CO., LTD. |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20161028 |