CN102535231A - 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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- CN102535231A CN102535231A CN2011103426017A CN201110342601A CN102535231A CN 102535231 A CN102535231 A CN 102535231A CN 2011103426017 A CN2011103426017 A CN 2011103426017A CN 201110342601 A CN201110342601 A CN 201110342601A CN 102535231 A CN102535231 A CN 102535231A
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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 rotation that is used for improving fiber web machine compressed elements vibration restorative (vibration resilience) method, coating (coating), compressed elements and be used for repairing the method for (reconditioning) coating or compressed elements.Especially, the present invention relates to (but being not limited to) a kind of composite coating, and be used to form this method by a plurality of layers of composite coating that constitutes by a plurality of layers of roller that is used for fiber web machine that constitutes.
Background technology
In the machinery (like paper machine) that carries width of cloth material; Use roller coating flexible, polymerizable material; This coating for example is used on the guide reel or as the surface of the formation nip of pressure roller, and this pressure roller is used for removing moisture or being used to width of cloth material surface from width of cloth material providing the gluing and film transfer and calendaring technology of finishing (polishing) characteristic.The required characteristic that has of composite roll coating in the 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 were safeguarded the aspect, this stupefied phenomenon can cause serious problem, and this promptly how will prevent the reason place that this phenomenon takes place by any feasible means.Playing stupefied phenomenon is owing to the self-holding vibration (self-sustained vibration) that occurs in the calender causes.This vibration receives multiple factor affecting, like the characteristic of the feedback of the load of mechanical resonance, front and used composite coating.
Usually through suppress resonance by better design and material, through service property (quality) attenuator (mass attenuator), or reach the purpose that has prevented stupefied phenomenon through the operational factor of adjusting calender.In the application relevant, because improving constantly of speed, load and temperature causes producing the possibility that play stupefied phenomenon relevant with elastic coating and increase with nip.And this stupefied phenomenon causes vibrating the degree that need change coating prematurely that is increased to gradually.Made characteristic that multiple effort improves composite coating to obtain to have resisted the better recovery (resilience) of stupefied phenomenon, like the measure through the employing high filler content, this measure can reduce the deformation of coating and improve its ABRASION RESISTANCE at present.
Play stupefied phenomenon and be derived from outside the coating usually, yet that the suitable coating compounds characteristic can prevent in advance is stupefied.For the generation that plays stupefied phenomenon whether, viscoplasticity (viscoelastic) characteristic that a variable factor that wherein exists is a coating.Empirical evidence, ABRASION RESISTANCE improve also makes the cycle of operation prolong.When the short Measuring Time of operation under the condition in the intrinsic frequency scope of nip; Adjustment viscoelastic property role is relatively widely known, but to viscoelastic behavior (viscoelastic behaviour) and in long period of operation the variation of this viscoelastic behavior then understand less.
Through 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 through 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 higher reinforcing fiber content to realize on the other hand.Yet in view of the characteristics of technology, for the coating hardness scope of the best of a certain applications existence, this promptly how can not unrestrictedly improve reason place of the elastic modelling quantity of coating.For example, in the 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,, and on the other hand, make the press polish operation compress paper with full and uniform mode so that the calender nip is unlikely too short.As widely known, during press polish, in the coating, mainly be in the lower top layer of rigidity deformation to take place.
The elastic coating that in nip, uses generally is made up of two or more layers, makes the hardness of the hardness of lower floor greater than the top layer usually.U.S. Patent bulletin US 5887517 has described an example of the coating that is structured in this layering on the roll body, and wherein when the distance with metal system roll body increased, the layer that connects near these layers was softer; In other words, the hardness of coating radially reduces gradually.
U.S. Patent bulletin US 5023985A has described a kind of roller that polymer coating is arranged, 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 both prevent the generation of stupefied phenomenon in all cases very fully, this means a stupefied principal element that becomes the maneuverability of the application that limits nip.
Summary of the invention
According to first scheme of the present invention; The present invention proposes a kind of restorative method of vibration of compressed elements, particularly roller of the rotation that is used for improving fiber web machine; Wherein this compressed elements has elastic coating; This elastic coating comprises: by the bottom that polymeric material is processed, this bottom is located on the body of this compressed elements; And the top layer of processing by polymeric material; This top layer as wearing layer be positioned at this bottom above; And this top layer comprises the outer surface as the 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 less than the radial elastic modulus of this outer surface.
Preferably, the radial elastic modulus of this bottom is adjusted to the level less than the radial elastic modulus of this outer surface.
Preferably, between this top layer and this bottom, be provided with the intermediate layer, this intermediate layer is radially softer than this top layer.
Preferably; Inside (in other words i.e. the bottom on this top layer) hardness radially 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 is bigger, this bottom radially be in this top below.Preferably, to be configured to the bottom hardness radially on this top layer of hardness ratio radially big by 15 to 20% on the top that extends to 0.2 to 1mm the degree of depth from this surface on this top layer.
Preferably, by means of the heat treatment on the top that is directed against this top layer, adopt the temperature of the temperature that initial heat treatment is adopted that preferably is higher than this top layer, this top of hardening.
Preferably, will composition or the additive that the UV radiation reacts be added in the polymeric material on this top layer, and make this top can pass through natural UV radiation hardening, perhaps handle this top of hardening by UV.
Preferably, the outer surface through sol-gel hardening process (sol-gel hardening) this top layer of hardening.
Preferably; Temperature in the bottom on this top layer is set at the temperature that is higher than in this outer surface or is higher than the temperature in the top on this top layer, make temperature difference corresponding to for making this bottom than the goal discrepancy (targeted difference) in the softer required elastic modelling quantity in this top.
Preferably, this bottom is set to hierarchy, wherein, utilizes continuous fibers rigid layer of strengthening and the inferior rigid layer (less rigid layer) that utilizes discontinuous fibre to strengthen to alternate.
Preferably, the layer that is in below this top layer is provided with matrix polymer (matrix polymer), and this matrix polymer has compares less elastic modelling quantity and higher loss factor (loss factor) with this top layer.
Preferably, the above-mentioned thermal conductivity that is in the layer below this top layer is adjusted to the thermal conductivity that is 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 the above-mentioned layer that is in 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 that is higher than this top layer.
According to alternative plan of the present invention; The present invention proposes a kind of compressed elements that is used for the rotation of fiber web machine, especially for the elastic coating of roller; Wherein this elastic coating comprises: by the bottom that polymeric material is processed, this bottom is fixedly arranged on the body of compressed elements of fiber web machine; And the top layer of processing by polymeric material; This top layer forms this wearing layer above bottom; And this top layer comprises the outer surface as the 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 a polyurethane.Preferably, the polymeric material in this top layer is an 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 the intermediate layer, this intermediate layer is radially softer than this top layer.
Preferably, the bottom hardness radially that the top on this top layer is set to this top layer of hardness ratio radially is bigger, and wherein this top extends to 0.2 to 1mm the degree of depth from this outer surface, this bottom radially be in this top below.Preferably, to be configured to the bottom hardness radially on this top layer of hardness ratio radially big by 15 to 20% on the top from this outer surface extends to 0.2 to 1mm the degree of depth on this top layer
Preferably, by means of the heat treatment on the top on this top layer is made this top sclerosis.
Preferably, in the polymeric material on this top layer, adding has pair composition that the UV radiation reacts or additive such as light trigger (photoinitiator), and hardens through the UV radiation in this top layer.
Preferably, harden through the sol-gel hardening process in the surface on this top layer.
Preferably, utilize the material that is the sol-gel form that is applied over this top layer to handle the outer surface on this top layer.This material can be the sol-gel that contains the Si compound.Can allow this material to be absorbed, and can be with this skin drying under the temperature that for example raises.
Preferably, this bottom is set to hierarchy, wherein, utilizes continuous fibers rigid layer of strengthening and the inferior rigid layer that utilizes discontinuous fibre to strengthen to alternate.
Preferably, the layer that is in below this top layer is provided with matrix polymer, and this matrix polymer has compares less elastic modelling quantity and higher loss factor with this top layer.
Preferably, the above-mentioned thermal conductivity that is in the layer below this top layer is higher than the thermal conductivity on this top layer.
Preferably, in the above-mentioned layer that is in below this top layer, can use carbon fiber or heat filling, to obtain better thermal conductivity.
Preferably, the polymeric material that in the top layer of this elastic coating, uses at least 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 some scheme of the present invention or the described coating of embodiment.
According to cubic case of the present invention; The present invention proposes a kind of method according to some scheme of the present invention or the described coating of embodiment that is used to repair; Perhaps be used to repair method according to some scheme of the present invention or the described fiber web machine compressed elements of embodiment; In the method, radially a part of outer surface on this top layer is removed to the deepest point that is lower than wearing and tearing, and the outer surface of the exposure on this top layer of hardening along this coating.
The wearing and tearing of coating and the accumulation of vibration on the other hand can access and significantly slow down and need not change the optimal hardness of roller in fact.In requiring the harsh application relevant with nip, as in multiple pressure district calender and film shifting process, the accumulation that plays stupefied phenomenon can be retarded.
According to a plurality of schemes and the embodiment that describe among the application, scheme of the present invention can be used in and realizes a kind of compound coating structure, and therefore this coating structure can damped vibration also have better recuperability to playing a stupefied phenomenon.The present invention has for example eliminated the vibration relevant with stupefied phenomenon from calender from the application of fiber web machine with nip; And for having controlled stupefied (phenomenon) significant advantage is provided, and therefrom for improve present manufacturing technique and further exploitation width of cloth material Manufacturing Technology Development significant advantage is provided.
According to some embodiment of the present invention, can realize having the coating of comparing the roller that is used for fiber web machine of longer service life with the coating of prior art.According to some embodiment, can improve abrasion property, and can obtain to have the scheme of the coating of longer maintenance period thus.
The wearing and tearing of coating and the accumulation of vibration on the other hand can access and significantly slow down and need not change the optimal hardness of roller in fact.
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; 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 the mode that combines with other embodiment.
Description of drawings
Through 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.
The specific embodiment
In following explanation, identical Reference numeral refers to identical parts.It should be noted that the accompanying drawing that is provided not is to draw fully in proportion, and these accompanying drawings mainly only are used to demonstrate 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 also can be solid.Composite coating 10 can be used to improve the damping capacity of coating, and has reduced the generation of stupefied phenomenon thus.
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 fabrication stage, this top layer preferably forms individual layer in single coating.This top layer is preferably around this bottom and forms.According to the example among Fig. 1; Vibration damping composite roll coating can be embodied as; It is harder than the bottom 112 on this top layer 110 that the top 111 (this top extend from outer surface 100 reach 0.2 to 1mm the degree of depth) on the top layer 110 of coating 10 is set to, and this top layer 110 is as the wear surface of this coating.The frontier district that is between hard top 111 and the softer bottom 112 indicates with the chain-dotted line 110 ' that traverses this top layer and extend.Top layer 110 preferably is made up of homogenous material.The top 111 on top layer 110 forms around bottom 112 diametrically.Till 0.2 to 1mm the degree of depth, the hardness on the top 111 on the top layer 110 of the coating 10 preferably hardness than the bottom 112 on top layer 110 is big by 15 to 20%.Preferred first kind of modulus hierarchical approaches (modular gradation) of coating 10 be as follows: the hard top 111 on top layer 110; The bottom 112 on top layer, its middle and lower part 112 is softer than top 111; And bottom 120, the words of this bottom such as needs (but inessential) are 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 the bottom.Several intermediate layers 115 can be set.According to Fig. 2, preferred second kind of modulus hierarchical approaches of coating 10 is following: the hard top 111 on top layer 110; The bottom 112 on top layer, its middle and lower part 112 is softer than top 111; Intermediate layer 115, the words of this intermediate layer such as needs (but inessential) are softer than bottom 112; And bottom 120, the words of this bottom such as needs (but inessential) are harder than bottom 112.Intermediate layer 115 preferably is made up of the material material different with top layer 110.According to an embodiment, it is hard according to the top layer 110 that Fig. 1 is provided with that intermediate layer 115 forms beguine, and the modulus of its mesexine 110 constitutes and is classified to from top 111 and 112 becomes more and more softer to the bottom.According to another embodiment, the modulus in intermediate layer 115 formation 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 influence of higher heat-conductivity of each layer of inside of coating 10 is below described in more detail, and based on the influence of the potential heating of each layer of inside of the vibration dampening characteristic of 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 above the bottom around this bottom or at this.Bottom 120 is that layer 121 forms with layer 122 with alternating, and its middle level 121 is made up of the strengthening material that comprises continuous fibers, and layers 122 be 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 generally be by the degree of the uneven wear of coating perhaps/and the level of vibration of the roller degree decision that improves.Notice that at present for vibration, when coating was provided with thin layer (being generally 0.2 to 1mm), the increase that is applied the level of vibration of 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, then results from the variation of surface configuration on the other hand.For wearing and tearing, the influence of grinding is inappreciable.
When utilizing finite element algorithm inspection work coating; Compare with the work coating that has identical modulus (module) in the prior art; Total deformation quantity of the coating 10 shown in Fig. 1 to Fig. 3 can not change basically; Wherein tangentially with the deformation quantity identical (+/-2%) of the thickness direction of coating (thickness direction=direction of extrusion, radially); But because original state is higher, therefore can give the fatigue softening (fatigue softening) of the outer surface 100 of precoat 10, preferably to give the fatigue on top 111 on top layer 110 softening with remarkable longer work period.
Fig. 4 illustrates in the top layer variable quantity of deformation tangentially with the percentage form on the longitudinal axis, and the variable quantity of elastic modelling quantity is shown with the percentage form on transverse axis.Fig. 5 illustrates in the top layer variable quantity of deformation radially with the percentage form on the longitudinal axis, and the variable quantity of elastic modelling quantity is shown with the percentage form on transverse axis.Fig. 6 illustrates the variable quantity of the deformation energy in the top layer with the percentage form on the longitudinal axis, and the variable quantity of elastic modelling quantity is shown with the percentage form on transverse axis.Fig. 4 to Fig. 6 shows first curve 20, second curve 21 and the 3rd curve 22, and they are examples of three different working coatings.
Fig. 4 to Fig. 6 shows, the deformation quantity in the top layer 100,111 has been softened to little to 5%, and the deformation energy in the top layer 100,111 increases rapidly.Simultaneously, the top layer is owing to tired the continuation softened.Second benefit on harder surface is that deformation energy reduces, and this has reduced wearing and tearing and vibration in essence.Yet; Exceed at 20% o'clock at this surperficial elastic modelling quantity, deformation begins to concentrate on more significantly the bottom 112 on top layer 110 and the inside part 112,115,120 of coating, in the case; Disadvantage possibly be; When for example repairing compressed elements (coating) through grinding, compare with the work coating that has identical modulus in the prior art, need remove more overbrushing layer.
For the decay of vibration, and and then for having prevented stupefied phenomenon, among one or more layer below outer surface 100 deformation takes place also advantageously.
Be in being exemplified as of layer below the outer surface 100: the bottom 112 on top layer (Fig. 1 and Fig. 2), intermediate layer 115 (Fig. 2) and bottom 120 (Fig. 3).In the case, the layer of a major part of the deformation energy of the nip under the load below the outer surface 100 on top layer 110 is delivered to, and can reduce the stupefied permanent deformation that caused in the nip.Through suitably selecting layer 110,115 and 120 the modulus hierarchical approaches of coating 10; When coating 10 in its length of life during because of the grinding attenuation; With use prior art constructions (in this structure; When the body 130 towards roller moved, the elastic modelling quantity of coating material successively increased progressively) to compare, the variable quantity of nip length can reduce.
The total principle that is proposed 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 tops 111) below the outer surface 100 is adjusted to the level of radially (along the direction of extrusion) elastic modelling quantity (hardness) of the outer surface that is lower than this top layer.The higher modulus of elasticity on the top layer 110 of coating 10 can be set through multitude of different ways, in other words is the higher modulus of elasticity of wearing layer.The higher elastic modelling quantity of the layer below the top layer 110 can be set through multitude of different ways in addition, and optionally.
A kind of simple mode is the heat treatment of coating 10; Utilize heat treatment to outer surface 100; Through " tempering " top 111 with the outer surface of top layer 110 (wearing layer) 100 next-door neighbours of hardening, and heat treatment combines repeatedly to carry out (for example Fig. 1 and Fig. 2) with grinding.This " tempering " can be adopted the higher temperature of initial heat treatment phase ratio with this surface/top layer only to the outer surface 100 and top 111 of coating 10.
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 handle (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 is hardened to 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 be higher than the temperature in outer surface 100 and the top 111; Perhaps the temperature in the inside part 115,120 of coating 10 is higher than the temperature in outer surface 100 and the top 111, makes temperature difference corresponding to the goal discrepancy in the elastic modelling quantity thus.For example, top layer 110 that can chill roll, perhaps/and can heat the inside part 115,120 of bottom 112/ coating on top layer 110.
The 5th kind of mode that the structure of the layer below the vibration damping outer surface 100 is set is in bottom 120, to use hierarchy, and this hierarchy comprises and utilizes rigid layer 121 that continuous fibers strengthens and the inferior rigid layer 122 (Fig. 3) that utilizes discontinuous fibre to strengthen that is provided with rigid layer with alternating.This structure can keep the intensity of bottom 120, improves the deformability of this structure simultaneously, and therefore improves vibration damping.Through bottom 120 is reeled as mixed structure, can easily make the vibration damping composite coating 10 of this structure, in above-mentioned mixed structure, the braiding strengthening layer that comprises continuous fibers with comprise that the bed course (mat) of discontinuous fibre alternates.
Except said structure; The 6th kind of mode that the structure of the layer below the vibration damping outer surface 100 is set is that (for example in the bottom 120 in Fig. 1 and Fig. 3 example) uses matrix polymer in the layer below being in top layer 110, and this matrix polymer is fit to for damping behavior.Wherein this matrix polymer can be different with 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 bigger 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 system roll body, the heat conduction in the bottom is better than the top layer, therefore compares with top layer 110, and to be converted into the problem of heat energy so not big for deformation energy in bottom 120.According to some embodiment, the conduction of heat in the bottom also is to utilize in the bottom 120 the fiber content height of those layers (Fig. 3) that continuous fibers strengthens than the better reason in top layer.Different with functional top layer is in bottom 120, also to use carbon fiber or heat filling to obtain better thermal conductivity.Carbon fiber and heat filling can be used as independent layer and use or be attached in the whole fabric.Used heat filling for example can be metallic particles or pulverous aluminium nitride, and metal perhaps capable of using is handled (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 (for example be coated with nickel or be coated with silver) to improve thermal conductivity.
The selection scheme that a kind of modulus that is used for the modulus of bottom or intermediate layer is adjusted into the modulus that is lower than the top layer is in bottom or intermediate layer, to use the flexible particle such as microsphere.For example can the glass marble or the phenol ball that be filled with air or be filled with gas be mixed in fiber-reinforced material or the matrix polymer.
Above explanation provides the indefiniteness example of some embodiments of the present invention.To those skilled in the art, the present invention obviously is not limited to above-mentioned details, and on the contrary, the present invention can also utilize other method that is equal to implement.Can utilize some characteristic of the embodiment that is proposed, and not use other characteristic simultaneously.
More than this class declaration should only be regarded as description to principle of the present invention, and should not be regarded as, so protection scope of the present invention is only limited the Patent right requirement book of enclosing qualification of the present invention.
Claims (28)
1. the restorative method of vibration of compressed elements, the particularly roller (9) of a rotation that is used to improve fiber web machine; Wherein this compressed elements (9) has elastic coating (10); This elastic coating comprises: by the bottom (120) that polymeric material is processed, this bottom is located on the body (130) of this compressed elements; And the top layer (110) of processing by polymeric material; This top layer as wearing layer be positioned at this bottom above; And this top layer (110) comprise the outer surface (100) as the outermost radial point; It is characterized in that this top layer (110) radial elastic modulus below the outer surface (100) of this coating (10) is adjusted to the level less than the radial elastic modulus of this outer surface (100).
2. the method for claim 1 is characterized in that, the radial elastic modulus of this bottom (120) is adjusted to the level less than the radial elastic modulus of this outer surface (100).
3. according to claim 1 or claim 2 method 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).
4. like each described method in the claim 1 to 3; It is characterized in that; Bottom (112) hardness radially that the top (111) on this top layer (110) is set to this top layer of hardness ratio (110) radially is bigger; Wherein this top (111) extend to 0.2 to 1mm the degree of depth from this outer surface (100), this bottom (112) radially be in this top (111) below.
5. like each described method in the claim 1 to 4; It is characterized in that; Bottom (112) hardness radially that the top (111) on this top layer (110) is configured to this top layer of hardness ratio (110) radially is big by 15 to 20%, and wherein this top (111) extend to 0.2 to 1mm the degree of depth from this outer surface (100).
6. like each described method in the claim 1 to 5, it is characterized in that,, adopt the temperature of the temperature that initial heat treatment is adopted that is higher than this top layer (110), this top of hardening by means of the heat treatment on the top (111) that is directed against this top layer (110).
7. like each described method in the claim 1 to 5; It is characterized in that; To composition or the additive that the UV radiation reacts be added in the polymeric material on this top layer (110), and make this top (111) can pass through natural UV radiation hardening, perhaps handle this top of hardening by UV.
8. like each described method in the claim 1 to 5, it is characterized in that, through the harden outer surface (100) of this top layer (110) of sol-gel hardening process.
9. like each described method in the claim 1 to 8; It is characterized in that; Temperature in the bottom (112) of this top layer (110) is set at the temperature that is higher than in this outer surface (100) or is higher than the temperature in the top (111) on this top layer, make temperature difference corresponding to for making this bottom than the goal discrepancy in the softer required elastic modelling quantity in this top.
10. like each described method in the claim 1 to 9, it is characterized in that this bottom (120) is set to hierarchy, wherein, utilize continuous fibers rigid layer of strengthening (121) and the inferior rigid layer (121) that utilizes discontinuous fibre to strengthen to alternate.
11., it is characterized in that the layer (115,120) that is in below this top layer (110) is provided with matrix polymer like each described method in the claim 1 to 10, this matrix polymer has compares less elastic modelling quantity and higher loss factor with this top layer.
12., it is characterized in that the said thermal conductivity that is in the following layer (115,120) in this top layer (110) is adjusted to the thermal conductivity that is higher than this top layer like each described method in the claim 1 to 11.
13. like each described method in the claim 1 to 12, it is characterized in that, in the said layer (115,120) that is in below this top layer (110), use carbon fiber or heat filling, to obtain better thermal conductivity.
A 14. compressed elements that is used for the rotation of fiber web machine, especially for the elastic coating (10) of roller (9); Wherein this elastic coating comprises: by the bottom (120) that polymeric material is processed, this bottom is fixedly arranged on the body (130) of the compressed elements of this fiber web machine; And the top layer (110) of processing by polymeric material; Wherein this top layer forms this wearing layer above bottom; And this top layer comprises as the outer surface of outermost radial point (100); It is characterized in that this top layer (110) radial elastic modulus below the outer surface (100) of this coating (10) is less than the radial elastic modulus of this outer surface (100).
15. coating as claimed in claim 14 is characterized in that, the polymeric material of this top layer (110) is a polyurethane.
16. coating as claimed in claim 14 is characterized in that, the polymeric material of this top layer (110) is an epoxy resin.
17., it is characterized in that the radial elastic modulus of this bottom (120) is less than the radial elastic modulus of this outer surface (100) like each described coating in the claim 14 to 16.
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) like each described coating in the claim 14 to 17.
19. like each described coating in the claim 14 to 18; It is characterized in that; Bottom (112) hardness radially that the top (111) on this top layer (110) is set to this top layer of hardness ratio (110) radially is bigger; Wherein this top (111) extend to 0.2 to 1mm the degree of depth from this outer surface (100), this bottom (112) radially be in this top (111) below.
20. like each described coating in the claim 14 to 19, it is characterized in that, make this top sclerosis by means of the heat treatment on the top (111) that is directed against this top layer (110).
21., it is characterized in that in the polymeric material of this top layer (110), adding has pair composition that the UV radiation reacts or additive, and hardens through the UV radiation in this top layer like each described coating in the claim 14 to 20.
22., it is characterized in that hardening through the sol-gel hardening process in the surface (100) of this top layer (110) like each described coating in the claim 14 to 21.
23., it is characterized in that this bottom (120) is set to hierarchy like each described coating in the claim 14 to 22, wherein, utilize continuous fibers rigid layer of strengthening (121) and the inferior rigid layer (121) that utilizes discontinuous fibre to strengthen to alternate.
24., it is characterized in that the layer (115,120) that is in below this top layer (110) is provided with matrix polymer like each described coating in the claim 14 to 23, this matrix polymer has compares less elastic modelling quantity and higher loss factor with this top layer.
25., it is characterized in that the said thermal conductivity that is in the following layer (115,120) in this top layer (110) is higher than the thermal conductivity on this top layer like each described coating in the claim 14 to 24.
26. like each described coating in the claim 14 to 25, it is characterized in that, in the said layer (115,120) that is in below this top layer (110), use carbon fiber or heat filling, to obtain better thermal conductivity.
27. a fiber web machine compressed elements, particularly roller (9), it comprises according to each described coating (10) in the claim 15 to 26.
28. one kind is used for repairing the method that according to each described coating (10) of claim 15 to 26, perhaps is used to repair fiber web machine compressed elements according to claim 27; It is characterized in that; Radially a part of outer surface (100) of this top layer (110) is removed to the deepest point that is lower than wearing and tearing, and the outer surface of the exposure on this top layer of hardening (100) along this coating (10).
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 true CN102535231A (en) | 2012-07-04 |
| CN102535231B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104340647A (en) * | 2014-10-11 | 2015-02-11 | 枣庄学院 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104340647A (en) * | 2014-10-11 | 2015-02-11 | 枣庄学院 | Rubber roller running state monitoring device |
| 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 |
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 |
| CN102535231B (en) | 2014-10-01 |
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| C53 | Correction of patent of 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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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 | ||
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Granted publication date: 20141001 Termination date: 20161028 |