CN208009164U - A kind of creping blade - Google Patents
A kind of creping blade Download PDFInfo
- Publication number
- CN208009164U CN208009164U CN201820410708.8U CN201820410708U CN208009164U CN 208009164 U CN208009164 U CN 208009164U CN 201820410708 U CN201820410708 U CN 201820410708U CN 208009164 U CN208009164 U CN 208009164U
- Authority
- CN
- China
- Prior art keywords
- creping blade
- protective layer
- matrix
- paper
- wear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Paper (AREA)
Abstract
The utility model provides a kind of creping blade.The creping blade includes a matrix, and the top of the matrix is equipped with wear-resistant coating, is equipped with protective layer below the wear-resistant coating at the contact point of the creping blade and drying cylinder, also, the hardness of the protective layer is less than the hardness on paper machine dryer surface.The creping blade of the utility model has working face friction part area unrestricted and has high abrasion coating, paper impact site to have high-wearing feature and high impact properties simultaneously, make creping blade that there is longer service life, 30-60 times of common steel creping blade service life can be reached.
Description
Technical field
The utility model is related to a kind of creping blade more particularly to a kind of creping blades and its system for being applied to prepare paper for daily use
Preparation Method.
Background technology
Creping blade is component important in production and living paper technique, and the effect in production technology is by paper from drying cylinder
Sur-face peeling, while necessary pressure is applied to the paper of contact so that paper surface forms corrugated structure.
To meet creping requirement, creping blade should have following main character：Wearability is good, and corrugation edge has
Suitable acutance, profile geometries meet to performance requirements such as paper strength, bulks, and creping blade matrix has suitable rigidity
And elasticity.
The creping blade being widely used at present is essentially divided into two classes：The creping blade of steel creping blade and coating.
Steel creping blade is the creping blade used earliest in paper for daily use production, is still being widely used at present.Steel creping blade
Schematic diagram is shown in Fig. 1.
Steel creping blade is generally made of quenching steel, there is preferable wearability and flexibility.By close to drying cylinder face when work
On the one hand intersection with top end face plays the role of as work cutting edge the paper stripping for being pasted onto dryer surface, on the other hand,
Play the role of oppressing corrugation on the surface of paper at cutting edge in creping blade top.The thickness of wrinkle can be by presetting creping blade top
End and the size of side angle carry out a certain range of adjusting.
Steel creping blade exists clearly disadvantageous in actual use, is mainly manifested in that service life is short, wrinkle unstable two
A aspect, these deficiencies can seriously affect the raising of production efficiency and the promotion of product quality.
The reason of steel creping blade short life is that wearability is not strong, and failure procedure can be said by the comparison of Fig. 1 and Fig. 2
It is bright.When steel creping blade is just started to work, paper quality is preferable, and still, over time, the work cutting edge of creping blade can produce
Changing, with drying cylinder close to creping blade working position by being worn down to belt shape quickly close to linear condition, cutting edge become
At fillet, top because paper impacts with start to occur due to scraping along creping blade length direction impact line and vertical direction it is non-
, there is groove in even friction marks.Above-mentioned phenomenon can be accumulated gradually as time increases, the corrugation situation and physical property of paper
Gradual change can occur therewith, creping blade works after a certain period of time, and thus cutting edge passivation starts, the crepe structure for the paper being prepared
Beyond quality criteria requirements, the lower machine of creping blade failure.
There is above-mentioned obvious shortcomings for steel creping blade.Gradually replace steel creping blade at present is to utilize thermal spraying etc.
Sufacing forms the creping blade of local densification wear-resistant coating on steel base material.Wear-resistant coating is generally ceramic material or contains
The composite material of carbide, this kind of creping blade are collectively referred to as ceramic creping blade.
The ceramic creping blade that can be seen in existing market, structure is roughly the same, as shown in figure 3, dash area is pottery
Porcelain coating, the ceramic coating exist only in active face portion, and in the top end face of creping blade, there is no coatings.It is dramatically different with steel knife
, when making, usually there are one small transition angle, work for grinding in advance with drying cylinder contact portion for the coating of ceramic creping blade
When ceramic coating transition angle top substitute steel body contacted with drying cylinder.Since the wearability of coating is far above steel,
It can achieve the purpose that improve creping blade wearability, extend the creping blade service life.
But still there are some defects in ceramic creping blade：One is as steel creping blade, due to being contacted with drying cylinder
Working face can cutting edge passivation over time, cause paper crepe structure to change.This variation runs up to one
When determining degree and exceeding quality standard, creping blade failure may result in.Although the failure procedure of this ceramics creping blade can be much
It is longer than common steel knife, still, caused paper crepe structure variation issue still has in use, cannot equally keep
The uniformity of paper wrinkle.
Second defect of ceramic creping blade is that work cutting edge is susceptible to collapsing for small irregular shape as shown in Figure 4
, there is longitudinal stripe so as to cause paper in mouthful (Fig. 4 is only to illustrate, and specific size is subject to actual conditions).General ceramic material
It all enbrittles, blade mouth crack is be easy to cause during processing and fabricating and use, in the corrugation for scraping cylinder face release papers
Cheng Zhong, if chipping is larger, the place that paper is contacted with chipping can form linear striped, influence paper product quality, serious to lead
It causes creping blade directly to fail, shortens the creping blade service life.
The third defect of ceramic creping blade is to work as vibration since the hardness of coating material is far above the hardness of dryer surface
When more serious, it is easy to happen impact, this is easy to cause dryer surface injury.
It is supplied to correlation in view of deficiency, the creping blade for needing new form/material existing for creping blade used at present
Paper for daily use manufacturing enterprise, to improve product quality, reduce production cost.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of creping blade, by the way that protective layer is arranged
Come improve creping blade self-sharpening, reduce corrugation knife wound cylinder probability, the creping blade have longer service life, also, by
The paper of this production has better quality.
In order to achieve the above object, the utility model provides a kind of creping blade a comprising matrix, the top of the matrix
Protective layer is equipped with below wear-resistant coating equipped with wear-resistant coating, also, at the contact point of the creping blade and drying cylinder, also, described
Protective layer is layer of the hardness less than the hardness on paper machine dryer surface.
In the present invention, the working face of matrix refer to during the work time creping blade close to paper machine drying cylinder one
Side surface；Top refers to the part for the paper that creping blade contact is detached from from dryer surface during the work time, contacts the face of paper
Referred to as top end face；Contact point refers to the position that creping blade is in contact with dryer surface during the work time；The thickness of matrix refers to
Thickness of its top perpendicular to dryer surface before matrix is processed；The width of matrix refers to creping blade holding portion
The size on the top before bottom end to undressed inclination angle, non-spray-on coating；The length of creping blade refers to along drying cylinder axial direction
Size.
During the work time, the side of the wear-resistant coating at the contact point of creping blade and dryer surface can connect with dryer surface
It touches, by paper from the sur-face peeling of drying cylinder, the paper of stripping can apply paper with the front face of wear-resistant coating, wear-resistant coating
Add certain pressure so that paper surface forms corrugated structure.
Paper is detached from drying cylinder moment can be to persistently impacting at the close work cutting edge in creping blade top, and wear-resistant coating can
The intensity of paper impact site, effectively prevent the damage of the creping blade caused by above-mentioned impact, Yi Jizhi during reinforcing use
In face of scraping damage caused by the continuous frictional of creping blade top.
The utility model below the wear-resistant coating at the contact point of creping blade and drying cylinder by being arranged protective layer, Neng Gouqi
To the effect of protection drying cylinder.Hardness, wearability of the protective layer etc. are less than drying cylinder, when the working position of creping blade (i.e. and drying cylinder
The side of the wear-resistant coating of surface contact) passivation or when by greater impact power, protective layer can collapse, and keep creping blade de- with drying cylinder
From contact, to reduce the probability that creping blade damages drying cylinder.Protective layer can be between wear-resistant coating and the top end face of matrix
(as shown in Figure 5) can also be arranged along the working face of matrix, can also both be distributed in wear-resistant coating and matrix top end face it
Between, and be arranged along the working face of matrix.
Specific embodiment according to the present utility model, it is preferable that when working face setting of the protective layer along matrix, protection
Layer is located on the working face of matrix at the position of wear-resistant coating, as shown in Figure 6.Also, in this case, protective layer leans on
The side of the top end face of nearly matrix should also be covered with wear-resistant coating.But protective layer does not need to cover entire working face, along
Working face has width appropriate, such as the w&apos in Fig. 6;It is shown.
When working face setting of the protective layer along matrix, the mode of setting may include following several：First method：It is described
Protective layer protrudes from the working face (as shown in Figure 6) of described matrix；Alternatively, second method：The top end of described matrix is equipped with one
A notch, the protective layer is located in the notch, also, the outer surface of the protective layer and the working face of described matrix are located at
In same plane (as shown in Fig. 7-Figure 10)；Alternatively, Third Way：The top end of described matrix is set there are one notch, the guarantor
Sheath includes two parts, and a part is located in the notch, and another part protrudes from working face (such as Figure 11, the figure of described matrix
Shown in 12).In second method, the section of protective layer can be any suitable shape, for example, triangle, diamond shape, it is trapezoidal, its
His regular shape or irregular shape, as shown in Fig. 7-Figure 12.
The hardness of specific embodiment according to the present utility model, protective layer may be controlled to≤HV0.3300, preferably
HV0.3100-300, more preferably HV0.3130-250, more preferably HV0.3150-220 can be selected depending on the situation
140,160,180,200,220,240,260,280 etc..Protective layer, which may be used, any disclosure satisfy that above-mentioned hardness requirement
Material is made, i.e., protective layer includes for layer, preferably softer metal or alloy material, above-mentioned metal made of metal or alloy
One kind in copper, aluminium, zinc, tin, nickel, cobalt and magnesium etc.；Above-mentioned alloy includes at least two in copper, aluminium, zinc, tin, nickel, cobalt and magnesium
The alloy formed.Compared with wear-resistant coating, the wear-resisting property and intensity of protective layer are generally opposite to want lower.
Creping blade is generally all long (length can reach 4 meters or so), and a similar long steel band, protective layer is similar to one
It is embedded in the band on steel band top, also, in situations where it is preferred, protective layer can be condition of equivalent thickness with steel band.According to this
The thickness of the specific embodiment of utility model, protective layer may be controlled to 0.1-2.0mm, preferably 0.3-1.0mm.The thickness
Refer to the outer surface of protective layer to the size of matrix surface, as shown in the h ' in Fig. 6-Figure 10, when the thickness of protective layer each section
When inconsistent, which refers to its thickness close to wear-resistant coating part, and the protective layer of this part should have thickness appropriate, with
Ensure that body portion will not be milled to during abrasion, such as shown in Fig. 7 and Figure 10.
Specific embodiment according to the present utility model, it is preferable that the thickness of wear-resistant coating is 0.03-0.25mm, more excellent
It is selected as 0.03-0.1mm.In existing ceramics creping blade, wear-resistant coating is thicker, since its hardness is higher, with the time
Passage, blade tip part will appear abrasion, circular arc (or fillet) occurs, and as circular arc is increasing, paper paper line also can be more next
Thicker, quality declines.The creping blade of the utility model is equipped with the protective layer that hardness is less than drying cylinder, in use, only resistance to
Mill coating contacts with each other by working face side and protective layer by the surface of working face side and drying cylinder, the matrix of creping blade not with
Drying cylinder contacts, and the area of the contact portion of wear-resistant coating and drying cylinder remains unchanged, and the contact area of protective layer and drying cylinder has small
Variation, since the hardness and wearability of protective layer can not show a candle to drying cylinder, the contact portion of protective layer and dryer surface can be with wear-resisting
The abrasion of coating and synchronize abrasion, so the contact surface of working face and drying cylinder is unrestricted, creping blade during the work time with baking
The contact angle of cylinder can be kept constant, and be not in fillet.When this is very thin in 0.03-0.07mm for the thickness control of wear-resistant coating
Range when, it is always sharp that can make work edge oral area point, and the paper line of paper can be always maintained at thinner state, no
Can be thicker with the extension of usage time, it is always maintained at higher quality, that is to say, that the utility model is protected by being arranged
Layer, can improve the self-sharpening of creping blade.
The material of wear-resistant coating can be metal, metal oxide, ceramic material, silicate, carbide, boride and nitrogen
The combination of one or more of compound；Preferably, the material of wear-resistant coating include metal, aluminium oxide, chromium oxide, zirconium oxide,
The combination of one or more of tungsten carbide, chromium carbide, zirconium carbide, ramet and titanium carbide etc.；For example, tungsten-cobalt carbide-chromium closes
Golden (weight content is respectively 86%, 10%, 4%) or tungsten carbide-carbonization chromium-nickel alloy (weight content is respectively 73%,
20%, 7%).
Specific embodiment according to the present utility model, when working face setting of the protective layer along matrix, in second method
In, work pile and groove (as shown in figure 13) can also be formed in protective layer, by the way that groove is arranged, it is possible to reduce contact surface
Width increases self-sharpening.Wherein, the width of pile of working is 0.15mm-0.4mm, and the depth of groove is 0.2mm-0.5mm, width
For 1.5mm-2.5mm, work pile is set between groove and the top end face of matrix.The shape and size of groove meet claimed below：
During the use of creping blade, when the pile that works all is worn, connection of the groove with working face in one end far from work pile
Point is not contacted with the drying cylinder of paper machine.
Specific embodiment according to the present utility model, it is preferable that the top surface for the pile that works and the angle of working face are 0-
15 °, preferably 8 ° or less.
Specific embodiment according to the present utility model, groove can be triangle, rectangle or trapezoidal etc., but be not limited to
This.
Specific embodiment according to the present utility model, the length of matrix, width, height concrete numerical value can be according to need
It is selected, it is preferable that the thickness of matrix is 0.6-1.5mm, width 100-150mm, and length is identical as the length of drying cylinder.
It can be steel body that matrix, which can select suitable band-like Steel material, i.e., above-mentioned matrix,.
Specific embodiment according to the present utility model, it is preferable that the angle between the top end face and working face of matrix is (i.e.
The structure angle of creping blade) it is 70 ° -150 °, preferably 70 ° -90 °.
The utility model additionally provides the preparation method of above-mentioned creping blade, is the top end face on matrix and/or work
Face forms protective layer, then forms wear-resistant coating at the top end face of matrix again, creping blade is obtained after ground processing.
For the creping blade of different structure, preparation method can be respectively：
Protective layer is located at the creping blade of matrix top end face：Protective layer is formed in the top end face of matrix, by the top end face of matrix
Grinding forms angle appropriate, and (angle of inclination beta, for angle generally between 0 ° -20 °, particular case lower angle can be negative value, actually answer
Such situation seldom occurs in), wear-resistant coating is then formed on protective layer again, ground processing forms a transition and inclines
(generally between 0 ° -15 °, generally between 0.5-2.5mm, concrete numerical value is had width w angle angle α according to equipment situation
The selection of body；It when creping blade dispatches from the factory, can not grind to form this transition inclination angle, be ground again using preceding in upper paper machine,
Creping blade with lower structure is also such), preparation process is as shown in figure 14, obtains creping blade.
Protective layer is located at the creping blade of matrix working face：Protective layer is formed in the working face of matrix, by the top end face of matrix
Grinding forms angle appropriate, and (angle of inclination beta, for angle generally between 0 ° -20 °, particular case lower angle can be negative value, actually answer
Such situation seldom occurs in), wear-resistant coating then is formed in the top end face of matrix, ground processing forms a transition and inclines
(generally between 0 ° -15 °, generally between 0.5-2.5mm, concrete numerical value is had width w angle angle α according to equipment situation
The selection of body), preparation process is as shown in figure 15, obtains creping blade.
Protective layer is located at the creping blade of matrix top end face and working face：Protection is formed in the top end face and working face of matrix
Layer grinds the top end face of matrix to form angle appropriate (angle of inclination beta, angle is generally between 0 ° -20 °, particular case lower angle
Can be negative value, such situation seldom occurs in practical application), it is then formed on the protective layer on matrix top end face again resistance to
Coating is ground, ground processing forms a transition inclination alpha, and (for angle generally between 0 ° -15 °, width w is generally in 0.5-2.5mm
Between, concrete numerical value according to equipment situation specifically select), preparation process is as shown in figure 16, obtains creping blade.
Protective layer is located fully or partially at the creping blade in the notch of matrix top：One is formed in the top end of matrix to lack
Mouthful, protective layer is formed in the notch, the top end face of matrix is ground to form angle appropriate (angle of inclination beta, angle generally exist
Between 0 ° -20 °, particular case lower angle can be negative value, and such situation seldom occurs in practical application), then in matrix
Top end face forms wear-resistant coating, and ground processing forms a transition inclination alpha, and (for angle generally between 0 ° -15 °, width w is general
Between 0.5-2.5mm, concrete numerical value according to equipment situation specifically select), preparation process is as shown in figure 17, obtains
Creping blade.
In the preparation, first matrix can be processed, it is made to have the preliminary configuration of creping blade.
The creping blade of the utility model can select the material of the steel creping blade being widely used at present as matrix, with
It is switched over conducive to the steel creping blade generally used now.Protective layer, wear-resistant coating can utilize thermal spraying, plating, swash
The surface engineering technologies such as light cladding are made.
In the creping blade of the utility model, protective layer has hardness appropriate, can play the role of protecting drying cylinder, together
When, the work cutting edge that wear-resistant coating is contacted with dryer surface can also be made to be always maintained at sharp state, greatly improve creping blade
Sharping by oneself affect.Wear-resistant coating has and has very high bond strength between high-wearing feature, low heat conductivity, with matrix, can ensure
It is subsequent processing or/and use in both without departing from.
The wear-resistant coating working position constant area of the creping blade of the utility model, dimensionally stable, generally 0.03mm-
The banded structure of 0.25mm wide, and drying cylinder contact area very little, so as to make the paper wrinkle knot for the paper being prepared
Structure does not change substantially.
The line pressure of the cutting edge of the creping blade of the utility model generally in 2.5-3N/mm, can effectively reduce creping blade with
The frictional force of drying cylinder achievees the purpose that energy saving to make the resistance in drying cylinder rotation process become smaller.
The creping blade of the utility model has working face friction part area unrestricted and has high abrasion coating, paper simultaneously
Face impact site has high-wearing feature and high impact properties, so that creping blade is had longer service life, can reach ordinary steel
30-60 times of creping blade service life processed.
Description of the drawings
Fig. 1 is the schematic diagram of steel creping blade.
Fig. 2 is the schematic diagram of the steel creping blade in failure state.
Fig. 3 is the schematic diagram of ceramic creping blade.
Fig. 4 is the schematic diagram of the ceramic creping blade with chipping.
Fig. 5-Figure 13 is respectively the schematic diagram of the creping blade with various forms of protective layers.
Figure 14-Figure 17 is respectively the preparation process schematic diagram of different creping blades.
Specific implementation mode
In order to which the technical characteristics of the utility model, purpose and advantageous effect are more clearly understood, now to this practicality
Novel technical solution carry out it is described further below, but should not be understood as to the utility model can practical range restriction.
Embodiment 1
A kind of creping blade is present embodiments provided, as shown in fig. 6, its specification is 4000mm × 120mm × 1.2mm, is
(as shown in figure 15) prepared by following steps：
The steel body of dimension is selected according to the specification of creping blade；
Using supersonic flame spraying matrix working face by proximal portion spray layer protective layer, the protective layer along
Work EDS maps, and material is metallic copper, thickness (h') it is 0.5mm, width (w) is 4mm, and the hardness of protective layer is HV0.3
150；
A transition inclination angle is ground in the top end face of matrix, angle is 5 °, and the width of pre-grinding part is 2mm；
Coating is formed in the top end face of matrix using supersonic flame spraying, coating material is tungsten carbon (WC) series metal powder
End is ground coating, and the thickness of final wear-resistant coating is 0.03mm；
The side of wear-resistant coating is pointed out with the contact of dryer surface (during use) and is processed, creping blade is formed
Structure angle, angle are 76 °, obtain creping blade.
Actual experiment is carried out to creping blade manufactured in the present embodiment, is specifically carried out in the following way：
Experimental paper machine：Certain No. 2 paper machine of hygienic paper plant
Test objective：Creping blade service life and paper delivery quality compare
Compare target：Steel creping blade
Paper captain year is produced using steel creping blade, about 1.5 hours of creping blade service life.Creping blade is changed
Afterwards, reconditioning again is carried out to the corrugation edge of abrasion, the creping blade after reconditioning can recycle.Usually, it one is risen new
Wrinkle knife can with reconditioning 5-6 time, creping blade width can it is narrow extremely close to when 110mm no longer reconditioning and thoroughly scrap.
Practical contrast test is carried out using the creping blade of the present embodiment.
Concrete technology condition when experiment is as follows：
Product：Draw-out of tissue towel
Paper pulp raw material：Sugarcane slurry, wood pulp mixing slurry
Web width：3550mm
Paper product grammes per square metre：12.5g/m2, (no wet strength agent)
Drying cylinder specification：Diameter 2.4m, length 4.0m, cast iron dryer, surface spraying stainless steel coating
Drying cylinder linear velocity：600-750m/min
Web velocity：500-650m/min
Paper web moisture content：5.5%
Creping blade top inclination angle：76°
Creping blade load：4-5N/mm
Creping blade extension elongation：25mm
Adhesive：Kai Meike
Test result analysis：
Paper product quality analysis：The paper product quality produced using the creping blade of the present embodiment fully meets producer's requirement
Quality standard, leading indicator are superior to steel creping blade.Compared with using steel creping blade, paper product surface brightness improves, visually
Effect is fine, wrinkle uniformity, keeps being basically unchanged for a long time, is particularly suitable for production microgroove paper.Wrinkle is changed to more than mark
On time, creping blade need not crash, when paper product for producing slightly thick wrinkle, may be reused, until striped or wrinkle occurs in paper
When quality is exceeded, creping blade failure.Paper product good hand touch, bulk are good.The service life statistical result of creping blade is as shown in table 1.
The 1 creping blade service life of table counts
| Serial number | Microgroove (h) | Middle line, which continues, uses (h) | It is steel knife service life (again) |
| The creping blade of the present embodiment | 84 | 45 | 45-56 |
| Steel knife | 1.5 | 1 |
The service life of the creping blade of the present embodiment is slightly distinguished, and is expected to be consistent with hardness, the wearability of design.
Using the creping blade of the present embodiment, other than promoting paper product quality, the service life of overlength significantly reduces work
The labor intensity of people, reduces the production loss generated by tool changing, and one in alloy knife life cycle, and board can produce more _
2.5 tons of products, while also reducing the paper product waste of tool changing generation.
Embodiment 2
A kind of creping blade is present embodiments provided, as shown in figure 5, its specification is 4000mm × 120mm × 1.2mm, is
(as shown in figure 14) prepared by following steps：
The steel body of dimension is selected according to the specification of creping blade；
A transition inclination angle is ground in the top end face of matrix, angle is 7 °, and the width of pre-grinding part is 2.0mm；
Layer protective layer is formed in the top end face of matrix by the way of laser melting coating, the protective layer is along working face point
Cloth, material are magnesium metal, thickness (h') it is 0.7mm, the hardness of protective layer is HV0.3200；
Coating is formed on the surface of protective layer using supersonic flame spraying, coating material is chromium carbide, is carried out to coating
The thickness of grinding, final wear-resistant coating is 0.05mm；
The side of wear-resistant coating is pointed out with the contact of dryer surface (during use) and is processed, creping blade is formed
Structure angle, angle are 80 °, obtain creping blade.
Actual experiment is carried out to creping blade manufactured in the present embodiment, is specifically carried out in the following way：
Experimental paper machine：Certain No. 2 paper machine of hygienic paper plant
Test objective：Creping blade service life and paper delivery quality compare
Compare target：Steel creping blade
Paper captain year is produced using steel wrinkle knife, about 1-2 hour of creping blade service life.After creping blade is changed,
Again reconditioning is carried out to the corrugation edge of abrasion, the creping blade after reconditioning can recycle.Usually, one new creping blade
Can with reconditioning 6-7 times, creping blade width can it is narrow to close to when 110mm no longer reconditioning and thoroughly scrap.
Practical contrast test is carried out using the creping blade of the present embodiment.
Concrete technology condition when experiment is as follows：
Product：Roll up facial tissue towel
Paper pulp raw material：Bamboo pulp and wood pulp mixing slurry
Web width：4000mm
Paper product grammes per square metre：13.5g/m2, (no wet strength agent)
Drying cylinder specification：Diameter 2.3m, length 4.5m, cast iron dryer, surface spraying stainless steel coating
Drying cylinder linear velocity：700-950m/min
Web velocity：600-850m/min
Paper web moisture content：6.5%
Creping blade top inclination angle：80°
Creping blade load：4-5N/mm
Creping blade extension elongation：20mm
Adhesive：Sub- Silan
Test result analysis：
Paper product quality analysis：The paper product quality produced using the creping blade of the present embodiment fully meets producer's requirement
Quality standard, leading indicator are superior to steel creping blade.Compared with using steel creping blade, paper product surface brightness improves, visually
Effect is fine, wrinkle uniformity, keeps being basically unchanged for a long time, is particularly suitable for production microgroove paper.Wrinkle is changed to more than mark
On time, creping blade need not crash, when paper product for producing slightly thick wrinkle, may be reused, until striped or wrinkle occurs in paper
When quality is exceeded, creping blade failure.Paper product good hand touch, bulk are good.The service life statistical result of creping blade is as shown in table 2.
The 2 creping blade service life of table counts
| Serial number | Microgroove (h) | Middle line, which continues, uses (h) | It is steel knife service life (again) |
| The creping blade of the present embodiment | 76 | 46 | 46-63 |
| Steel knife | 1.2 | 1 |
The service life of the creping blade of the present embodiment is slightly distinguished, and is expected to be consistent with hardness, the wearability of design.
Using the creping blade of the present embodiment, other than promoting paper product quality, the service life of overlength significantly reduces work
The labor intensity of people reduces the production loss generated by tool changing, and one in alloy knife life cycle, and board can produce more
2.3 tons of products, while also reducing the paper product waste of tool changing generation.
Embodiment 3
A kind of creping blade is present embodiments provided, as shown in fig. 7, its specification is 4000mm × 120mm × 1.2mm, is
(as shown in figure 17) prepared by following steps：
The steel body of dimension is selected according to the specification of creping blade；
A right angle trigonometry v notch v is formed in the top end of matrix, and the length on two sides is respectively 1.0mm, 15mm, short
Side is located at top end face, and long side is located at working face；
Protective layer is formed in notch, the long side of protective layer is concordant with the working face of matrix, the top end face of short side and matrix
Concordantly, the material of protective layer is metallic copper, and the hardness of protective layer is HV0.3140；
A transition inclination angle is ground in the top end face of matrix, angle is 5 °, and the width of pre-grinding part is 1.8mm；
Top end face using supersonic flame spraying in matrix forms wear-resistant coating, and abrasion-resistant coating material is tungsten carbide, right
Wear-resistant coating is ground, and the thickness of final wear-resistant coating is 0.06mm；
The side of wear-resistant coating is pointed out with the contact of dryer surface (during use) and is processed, creping blade is formed
Structure angle, angle are 76 °, obtain creping blade.
Actual experiment is carried out to creping blade manufactured in the present embodiment, is specifically carried out in the following way：
Experimental paper machine：Certain No. 2 paper machine of hygienic paper plant
Test objective：Creping blade service life and paper delivery quality compare
Compare target：Steel creping blade
Paper captain year is produced using steel wrinkle knife, about 1.5 hours of creping blade service life.After creping blade is changed,
Again reconditioning is carried out to the corrugation edge of abrasion, the creping blade after reconditioning can recycle.Usually, one new creping blade
Can with reconditioning 6-7 times, creping blade width can it is narrow to close to when 110mm no longer reconditioning and thoroughly scrap.
Practical contrast test is carried out using the creping blade of the present embodiment.
Concrete technology condition when experiment is as follows：
Product：Draw-out of tissue towel
Paper pulp raw material：Pure wood pulp
Web width：3600mm
Paper product grammes per square metre：13.5g/m2, (no wet strength agent)
Drying cylinder specification：Diameter 2.5m, length 4.0m, cast iron dryer, surface spraying stainless steel coating
Drying cylinder linear velocity：750-900m/min
Web velocity：600-800m/min
Paper web moisture content：7.5%
Creping blade top inclination angle：76°
Creping blade load：4-5N/mm
Creping blade extension elongation：18mm
Adhesive：Moral profit is precious
Test result analysis：
Paper product quality analysis：The paper product quality produced using the creping blade of the present embodiment fully meets producer's requirement
Quality standard, leading indicator are superior to steel creping blade.Compared with using steel creping blade, paper product surface brightness improves, visually
Effect is fine, wrinkle uniformity, keeps being basically unchanged for a long time, is particularly suitable for production microgroove paper.Wrinkle is changed to more than mark
On time, creping blade need not crash, when paper product for producing slightly thick wrinkle, may be reused, until striped or wrinkle occurs in paper
When quality is exceeded, creping blade failure.Paper product good hand touch, bulk are good.The service life statistical result of creping blade is as shown in table 3.
The 3 creping blade service life of table counts
| Serial number | Microgroove (h) | Middle line, which continues, uses (h) | It is steel knife service life (again) |
| The creping blade of the present embodiment | 106 | 56 | 56-70 |
| Steel knife | 1.5 | 1 |
The service life of the creping blade of the present embodiment is slightly distinguished, and is expected to be consistent with hardness, the wearability of design.
Using the creping blade of the present embodiment, other than promoting paper product quality, the service life of overlength significantly reduces work
The labor intensity of people reduces the production loss generated by tool changing, and one in alloy knife life cycle, and board can produce more
2.5 tons of products, while also reducing the paper product waste of tool changing generation.
It can be seen that by embodiment 1-3：The creping blade of the utility model can make the paper wrinkle for the paper being prepared
Structure does not change substantially, has longer service life.
Claims (10)
1. a kind of creping blade comprising the top of a matrix, the matrix is equipped with wear-resistant coating, which is characterized in that the creping blade
It is equipped with protective layer with the wear-resistant coating lower section at the contact point of drying cylinder, also, the protective layer is that hardness is less than paper machine dryer
The layer of the hardness on surface.
2. creping blade according to claim 1, which is characterized in that the protective layer is located at the wear-resistant coating and the base
Between the top end face of body, and/or, the protective layer is arranged along the working face of described matrix.
3. creping blade according to claim 2, which is characterized in that when the protective layer is arranged along the working face of described matrix
When, the protective layer is located on the working face of described matrix at the position of the wear-resistant coating.
4. creping blade according to claim 3, which is characterized in that the mode of the setting includes following several：
First method：The protective layer protrudes from the working face of described matrix；Alternatively,
Second method：The top end of described matrix is set there are one notch, and the protective layer is located in the notch, also, described
In the outer surface of protective layer and the working face of described matrix the are generally aligned in the same plane or outer surface of the protective layer is higher than the base
The working face of body；Alternatively,
Third Way：The top end of described matrix is set there are one notch, and the protective layer includes two parts, and a part is located at described
In notch, another part protrudes from the working face of described matrix.
5. creping blade according to claim 1, which is characterized in that the hardness of the protective layer is HV0.3100-300。
6. creping blade according to claim 1, which is characterized in that the protective layer is layer made of metal or alloy；Institute
It includes one kind in copper, aluminium, zinc, tin, nickel, cobalt and magnesium to state metal；The alloy includes in copper, aluminium, zinc, tin, nickel, cobalt and magnesium
At least two alloys formed.
7. creping blade according to claim 1, which is characterized in that the thickness of the protective layer is 0.1-2.0mm.
8. creping blade according to claim 1, which is characterized in that the thickness of the wear-resistant coating is 0.03-0.25mm.
9. creping blade according to claim 4, which is characterized in that in second method, work is formed in the protective layer
Make pile and groove；
The width of the work pile is 0.15mm-0.4mm, and the depth of the groove is 0.2mm-0.5mm, width 1.5mm-
2.5mm, the work pile are set between the groove and the top end face of described matrix；
The groove is triangle, rectangle or trapezoidal.
10. creping blade according to claim 1, which is characterized in that the thickness of described matrix is 0.6-1.5mm, and width is
100-150mm；
Angle between the top end face and working face of described matrix is 70 ° -150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820410708.8U CN208009164U (en) | 2018-03-26 | 2018-03-26 | A kind of creping blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820410708.8U CN208009164U (en) | 2018-03-26 | 2018-03-26 | A kind of creping blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208009164U true CN208009164U (en) | 2018-10-26 |
Family
ID=63889164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820410708.8U Active CN208009164U (en) | 2018-03-26 | 2018-03-26 | A kind of creping blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208009164U (en) |
-
2018
- 2018-03-26 CN CN201820410708.8U patent/CN208009164U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108532352A (en) | A kind of creping blade and preparation method thereof | |
| JP4739234B2 (en) | Cutting edge replaceable cutting tip and manufacturing method thereof | |
| CN101804467B (en) | Tool of surface-coated cubic boron nitride sintered compact and process for producing the same | |
| WO2005092608A1 (en) | Surface coating member and cutting tool | |
| JPH0310056A (en) | Yankee cylinder and coating method for yankee cylinder | |
| AU2007271882B8 (en) | Creping blade | |
| CN106182906A (en) | A kind of creping blade and preparation method thereof | |
| CN208009164U (en) | A kind of creping blade | |
| Arunachalam et al. | Evaluation of grinding strategy for bioceramic material through a single grit scratch test using force and acoustic emission signals | |
| JP2012245581A (en) | Cutting insert made from surface coated titanium carbon nitride-based cermet, and method for manufacturing the same | |
| SE0800539L (en) | Oxide coated cutting tool cutter for chip separating machining of steel | |
| JP2005279821A (en) | Throw-away tip and manufacturing method thereof | |
| JP5510661B2 (en) | Method for producing cutting insert made of surface-coated titanium carbonitride-based cermet | |
| CN101745680A (en) | Cemented carbide profile milling cutter with large helix angle | |
| CN101864554A (en) | Hard alloy blade for improving cutting edge structure | |
| JP2010221351A (en) | Tip for cutting edge replacement type cutting tool | |
| CN101837475B (en) | Coated tip for processing aluminum materials and preparation method thereof | |
| Chattopadhyay et al. | Wear characteristics of ceramic cutting tools in machining steel | |
| CN209955003U (en) | Long-life layered diamond cutter head | |
| CN100432333C (en) | Ceramic coating scraper and its machining process | |
| CN207669530U (en) | Molten plating diamond saw blade | |
| JP5499574B2 (en) | Titanium carbonitride-based cermet cutting insert and method for producing the same | |
| CN213135324U (en) | High-speed steel hobbing cutter | |
| CN210238149U (en) | Soft metal base scraper | |
| CN218611742U (en) | Groove cutter with high strength and long service life |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |