CN109731635A - A kind of wear-resisting compression roller - Google Patents
A kind of wear-resisting compression roller Download PDFInfo
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- CN109731635A CN109731635A CN201910162180.6A CN201910162180A CN109731635A CN 109731635 A CN109731635 A CN 109731635A CN 201910162180 A CN201910162180 A CN 201910162180A CN 109731635 A CN109731635 A CN 109731635A
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Abstract
The present invention relates to roll squeezer technical fields, a kind of wear-resisting compression roller is provided, including roll body, composite wear-resistant layer, whole overlay cladding, composite wear-resistant layer is by ceramic phase reinforcement castingin into constituting in steel material, ceramic phase reinforcement exposes steel material certain altitude, and gap Nei Dui is welded with the filling overlay cladding of high-wearing feature material composition, and whole overlay cladding heap is welded with high-wearing feature material, composite wear-resistant layer is concordant with whole overlay cladding, and the number of composite wear-resistant layer and the blanking port number of roll squeezer are consistent.The difference of present invention degree of wear according to suffered by compression roller face blanking port position and remaining position, design the composite wear-resistant layer and whole overlay cladding on roll body surface, the wear curve kissing of two-part wearability and compression roller and, it can make the wearing layer of press roll surface almost while abrasion finishes, entire wearing layer service life matches, be conducive to repair online, be the innovation in terms of roller press squeeze roll.
Description
Technical field
The present invention relates to roll squeezer technical field, especially a kind of wear-resisting compression roller.
Background technique
Roll squeezer is own through in cement, building materials, mine, electric power, coal, chemical industry etc. as a kind of energy-efficient disintegrating apparatus
Industry is used widely, and with the development of roll squeezer technology, roll-in function makes crushing system production efficiency improve 4 times, energy consumption
Reduce by 20% or so.When roll squeezer works, two compression rollers moved toward one another generate huge extruding under the action of hydraulic system
Power, by crushing material, roll surface is subjected to the pressure of 300MPa or so at this time, generates strong friction with material, and by material
Impact force, since be crushed powder hardness is high, mass flow is big, the compression roller serious wear of roll squeezer.As country builds
If rapid development, the demand to raw material such as mineral is increasingly enhanced, and the consumption of compression roller also rises year by year.But traditional squeezes
Pressure roller, because its service life is short, manufacturing process difficulty is big, and at high cost, repair time is long, and rehabilitation cost is high, is difficult to enlargement etc.
Problem, it is difficult to meet the needs in current market.
Traditional compression roller all using carrying out the form of built-up welding after casting or forging again, this compression roller wearability compared with
Difference needs constantly to repair built-up welding in use process, need to spend a large amount of human and material resources, and the service life of compression roller is short, makes
At stopping, the kiln time is longer, to influence manufacturing schedule, production efficiency is low.
In order to solve problem encountered, a kind of wear-proof metal ceramic compression roller generates therewith.It is to utilize metal material
High tenacity improve shock resistance and anti-shearing force, the ceramic particle using composite material area is that abrasive resistant media is to increase wear-resisting
Property.This compression roller wearability, compression resistance and impact resistance are preferable, and have certain high temperature resistance, are suitable for harsher
Working condition.But due to being required by casting technique, manufacturing cost is high, and ceramic particle is difficult to be evenly distributed, cause monolith from
It falls off on roller skin.And prefabricated complex first is made in column or prismatic ceramics, then be embedded into the groove that roll surface is equipped with, it is this
Though compression roller can effectively improve service life, there are easily break after ceramic member protrusion, make jointly in huge compression, shearing stress
Under, ceramic member has the danger being extruded from antifriction metal (AFM).
Chinese patent CN108202209A discloses the preparation method of a kind of high abrasion shock resistance roller surface lining plate and compression roller,
It is by compound castingin technology and overlaying method, steel alloy, hard alloy and built-up welding high abrasion resisting material three is compound, have product
There are good shock resistance and antiwear property, while wear surface can be repaired online by built-up welding mode.But the patent exists such as
Lower problem: 1. utilizing compound castingin technology, first enter hard alloy bar castingin in the preferable steel alloy of toughness and solderability (see
The 0004th section of specification), grinding roller after a period of work, the deposited metal among hard alloy bar can wear major part, this
Sample there is hard alloy bar by the possibility of whole extrusion, this is breakneck in the operating condition；2. compression roller works
After a period of time, the wear condition of entire press roll surface wearing layer is different, and entire wearing layer service life mismatches, and repairs online
Multiple opportunity is not easy to grasp, and repairs number and then accordingly increases, improves manufacturing cost, reduce production efficiency.
Chinese patent CN102441462A discloses a kind of high-wearable extrusion roller of roller and its manufacturing process, belongs to extruding
Roller technical field processes circular trough on the surface of compression roller, the spacing 3-6mm of slot, in Cao Nei tungsten carbide button cylinder, firmly
Matter alloy cylinder is higher than press roll surface 2mm, is then connect hard alloy with compression roller by the method for soldering, on compression roller
In soldering after hard alloy, wearability is greatly improved compared with overlaying method, long service life, is reduced compression roller replacement number, is mentioned
High utilization rate of equipment and installations.But there are the following problems for the patent: 1. the welding of hard alloy and compression roller is a brazing process, firmly
Matter alloy cylinder, compression roller roll body (medium carbon alloy steel) not will form metallurgical bonding between copper base solder three, be bound to cause it
Bonding strength is not high, and compression roller roll body (medium carbon alloy steel) can be worn first in production process, and hard alloy cylinder is then easy to
Roll surface is protruded, there are still the danger of hard alloy cylinder brittle failure；2. compression roller works, eroded area (abrasion band) is that have point
Cloth difference, some places serious wear, some places are then worn relatively gently, cause the wear condition of entire compression roller so not
Together, some places cannot work, and some places are mismatched still in serviceable condition, entire wearing layer service life, compression roller
Service life it is low.
The still not found major issue of those skilled in the art is at present: when two compression roller rotation works, from top
The material fallen being unevenly distributed on two roll surfaces, the roll surface of general blanking port face is frayed the most serious, when
After the frayed failure of the roll surface of blanking port face, other positions of roll surface can also be worked normally, and will cause entire compression roller in this way
Wearing layer service life mismatches, and the wear surface adhesion failed drives the intact wearing layer of rest part, makes intact resistance to
Mill layer falls off in the form of sheets or large area is worn rapidly, in turn results in entire compression roller wearing layer failure, has to shut down dimension at this time
Compression roller is repaired or replaced, the whole service life of compression roller is reduced.Paper, treatise, the patent etc. of this problem at home and abroad
But relevant report is not found in scientific and technical literature.
The entire wearing layer service life of roller press squeeze roll how is set to match, the entirety for improving compression roller uses the longevity
Life, is compression roller preparation field technical problem urgently to be solved.
Summary of the invention
For above situation, for the defect for solving the prior art, the purpose of the present invention is just to provide a kind of wear-resisting compression roller,
Can effectively solve the problems, such as the entire wearing layer service life of roller press squeeze roll do not match that, whole service life it is low.
The present invention adopts the following technical scheme: a kind of wear-resisting compression roller, which is characterized in that including roll body, composite wear-resistant layer
And whole overlay cladding, the composite wear-resistant layer and whole overlay cladding are separately positioned on the two sides of roll body, the composite wear-resistant layer with
The top of whole overlay cladding is concordant；Wherein, the composite wear-resistant layer by ceramic phase reinforcement castingin into constituting in steel material, it is described
Heap is welded with the filling overlay cladding of high-wearing feature material composition between adjacent composite wear-resistant layer, and the whole overlay cladding heap is welded with height
Wear-resisting material.
The number of the composite wear-resistant layer is consistent with the blanking port number of roll squeezer.
The ceramic phase reinforcement is interspersed, and is in honeycomb on roll body surface.
The ceramic phase reinforcement exposes steel material surface certain altitude, and the height of the ceramic phase reinforcement with it is whole
The thickness of body overlay cladding is identical.
The section of the ceramic phase reinforcement is round table-like or prism-frustum-shaped.
Lesser one end of section radius or circumradius of the ceramic phase reinforcement is placed in outside roll body, radius or
The biggish one end of circumradius is placed in inside roll body.
The section radius of the honeycomb type ceramic reinforcement or the radius of the biggish one end of circumradius are 6-20mm,
The bus of rotary table or the incline of terrace with edge and the angle of bottom surface are 59 ° -89 °.
After the ceramic phase reinforcement surface carries out chemical nickel plating processing, then implement imbedding process.
The compression roller roll body is made of steel material.
The invention has the following advantages:
1) compression roller roll body core is made of steel material, intensity and toughness with higher, surface be wearable overlay or
Composite wear-resistant layer, wearability are good.
2) difference of the degree of wear according to suffered by compression roller face blanking port position and remaining position, designs roll body surface
Composite wear-resistant layer and whole overlay cladding, the wear curve kissing of two-part wearability and compression roller and, compression roller table can be made
Almost abrasion finishes the wearing layer in face simultaneously, and entire wearing layer service life matches, and repair time is easily mastered, and is conducive to
Line reparation.
3) section of ceramic phase reinforcement is round table-like or prism-frustum-shaped, in castingin on roll body outside it is small interior big, avoid huge
Huge pressing stress and shearing stress act on the danger that lower ceramic phase reinforcement is extruded from compression roller roll body metal.
4) after the abrasion of compression roller entire wearing layer, can online Bead weld repair, product utilization rate is high, reduce manufacture at
This, improves production efficiency.
Detailed description of the invention
Fig. 1 is a kind of wear-resisting compression roller cross-sectional view of the present invention；
Fig. 2 is enlarged drawing at a kind of wear-resisting compression roller a of the present invention.
Description of symbols: 1, roll body, 2, composite wear-resistant layer, 3, whole overlay cladding, 4, ceramic phase reinforcement, 5, filling built-up welding
Layer.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.
As shown in Figure 1 to Figure 2, a kind of wear-resisting compression roller, which is characterized in that including roll body 1, composite wear-resistant layer 2 and entirety
Overlay cladding 3, the composite wear-resistant layer 2 are separately positioned on the two sides of roll body 1 with whole overlay cladding 3, the composite wear-resistant layer 2 with it is whole
The top of body overlay cladding 3 is concordant；Wherein, the composite wear-resistant layer 2 by 4 castingin of ceramic phase reinforcement into constituting in steel material, institute
State the filling overlay cladding 5 that heap between adjacent composite wear-resistant layer 2 is welded with high-wearing feature material composition, 3 heap of whole overlay cladding
It is welded with high-wearing feature material.
The number of the composite wear-resistant layer 2 and the blanking port number of roll squeezer are consistent.
The ceramic phase reinforcement 4 is interspersed, and is in honeycomb on 1 surface of roll body.
The height of the ceramic phase reinforcement 4 is identical as the whole thickness of overlay cladding 3, to guarantee it while wear to finish,
It is repaired conducive to online.
The section of the ceramic phase reinforcement 4 is round table-like or prism-frustum-shaped, radius or the lesser one end of circumradius
It is placed in outside compression roller roll body 1, radius or the biggish one end of circumradius are placed in inside compression roller roll body 1；Described
4 radius of ceramic phase reinforcement or the radius of the biggish one end of circumradius are 4-8mm, the bus of rotary table or the incline of terrace with edge and bottom
The angle in face is 75 ° -85 °；The section of ceramic phase reinforcement 4 is round table-like or prism-frustum-shaped, can make compression roller in use, i.e.,
When filling overlay cladding 5 being made to wear most of, under huge compression and shearing stress collective effect, ceramic phase reinforcement 4 will not be deposited
The danger being extruded in the metal from compression roller roll body 1.
After 4 surface of ceramic phase reinforcement carries out chemical nickel plating processing, then implement imbedding process, is conducive to ceramics in this way
Reinforcement 4 and compression roller roll body 1 form metallurgical bonding.
The compression roller roll body 1 is made of steel material, and the steel material is potassium steel, steel alloy, Gao Ge
Cast iron, spheroidal graphite cast-iron, carbon steel etc..
The filling overlay cladding 5 and whole overlay cladding 3 are carried out using gas shielded welding progress, and welding wire used is that outer layer is
The flux-cored wire of H08A sheetmetal, drug core component mass percent are as follows: nano-aluminium oxide 1.0%-1.9%, low-carbon ferrochromium
5.5%-8.5%, molybdenum-iron 2.0%-3.8%, ferronickel 6.5%-9.0%, ferro-boron 4.2%-6.5%, ferro-niobium 0.8%-1.4%, ferrosilicon 5.2%-
7.0%, manganese iron 8.2%-9.6%, feldspar 10.5%-12.0%, titanium dioxide 9.0%-12.0%, surplus are FHT10025 reduced iron powder；
Medicinal powder filling rate is 36%-45%；Gage of wire 1.6-3.2mm；Using DC reverse connection method；Welding parameter are as follows: welding current 280-
500A, weldingvoltage 26-35V, speed of welding 300-800mm/min.
Embodiment 1:
1) truncated cone-shaped ceramic phase reinforcement is prepared, the bottom radius of rotary table is 6mm, and the bus of rotary table and the angle of bottom surface are 70 °, circle
The high 12mm of platform.
2) 1) the middle truncated cone-shaped ceramic phase reinforcement for preparing is subjected to chemical nickel plating.
3) 2) the middle several truncated cone-shaped ceramic phase reinforcements that prepare are arranged on compression roller casting mold cavity working face, casting is high
Manganese steel prepares compression roller roll body.
4) on the basis of 3), the built-up welding high abrasion in the gap that truncated cone-shaped ceramic phase reinforcement is exposed on compression roller roll body surface
Property material, gage of wire 1.6mm；Using DC reverse connection method；Welding parameter are as follows: welding current 350A, weldingvoltage 28V, welding
Speed 400mm/min.
5) on the basis of 4), there is no the position built-up welding high-wearing feature of truncated cone-shaped ceramic phase reinforcement on compression roller roll body surface
Material, gage of wire 1.6mm；Using DC reverse connection method；Welding parameter are as follows: welding current 350A, weldingvoltage 28V, welding speed
Spend 400mm/min.
Embodiment 2:
1) truncated rectangular pyramids shape ceramic phase reinforcement is prepared, the bottom circumradius of terrace with edge is 8mm, the incline of truncated rectangular pyramids and the folder of bottom surface
Angle is 78 °, the high 12mm of terrace with edge.
2) 1) the middle truncated rectangular pyramids shape ceramic phase reinforcement for preparing is subjected to chemical nickel plating.
3) 2) the middle several truncated rectangular pyramids shape ceramic phase reinforcements that prepare are arranged on compression roller casting mold cavity working face, are cast
Low-alloy steel prepares compression roller roll body.
4) on the basis of 3), built-up welding height is resistance in the gap that truncated rectangular pyramids shape ceramic phase reinforcement is exposed on compression roller roll body surface
Mill property material, gage of wire 2.0mm；Using DC reverse connection method；Welding parameter are as follows: welding current 380A, weldingvoltage 29V, weldering
Meet speed 420mm/min.
5) on the basis of 4), there is no the position built-up welding high-wearing feature of truncated rectangular pyramids shape ceramic phase reinforcement in compression roller body surface face
Material, gage of wire 2.0mm；Using DC reverse connection method；Welding parameter are as follows: welding current 380A, weldingvoltage 29V, welding speed
Spend 420mm/min.
Embodiment 3:
1) six prismatic table shape ceramic phase reinforcements are prepared, the bottom circumradius of six terrace with edges is 6.5mm, the incline of six terrace with edges and bottom surface
Angle be 82 °, the high 12mm of terrace with edge.
2) 1) the middle six prismatic table shape ceramic phase reinforcements that prepare are subjected to chemical nickel plating.
3) 2) the middle several six prismatic table shape ceramic phase reinforcements that prepare are arranged on compression roller casting mold cavity working face, are cast
Rich chromium cast iron prepares compression roller roll body.
4) on the basis of 3), built-up welding height is resistance in the gap that six prismatic table shape ceramic phase reinforcements are exposed on compression roller roll body surface
Mill property material, gage of wire 2.8mm；Using DC reverse connection method；Welding parameter are as follows: welding current 450A, weldingvoltage 30V, weldering
Meet speed 500mm/min.
5) on the basis of 4), on compression roller roll body surface without the position built-up welding high abrasion of six prismatic table shape ceramic phase reinforcements
Property material, gage of wire 2.8mm；Using DC reverse connection method；Welding parameter are as follows: welding current 450A, weldingvoltage 30V, welding
Speed 500mm/min.
Embodiment 4:
1) five prismatic table shape ceramic phase reinforcements are prepared, the bottom circumradius of terrace with edge is 10mm, the inclines of five terrace with edges and bottom surface
Angle is 81 °, the high 12mm of terrace with edge.
2) 1) the middle five prismatic table shape ceramic phase reinforcements that prepare are subjected to chemical nickel plating.
3) 2) the middle several five prismatic table shape ceramic phase reinforcements that prepare are arranged on compression roller casting mold cavity working face, are cast
Carbon steel prepares grinding roller of vertical mill roll body.
4) on the basis of 3), built-up welding height is resistance in the gap that five prismatic table shape ceramic phase reinforcements are exposed on compression roller roll body surface
Mill property material, gage of wire 3.2mm；Using DC reverse connection method；Welding parameter are as follows: welding current 460A, weldingvoltage 32V, weldering
Meet speed 600mm/min.
5) on the basis of 4), on compression roller roll body surface without the position built-up welding high abrasion of five prismatic table shape ceramic phase reinforcements
Property material, gage of wire 3.2mm；Using DC reverse connection method；Welding parameter are as follows: welding current 460A, weldingvoltage 32V, welding
Speed 600mm/min.
Embodiment 5:
1) eight prismatic table shape ceramic phase reinforcements are prepared, the bottom circumradius of terrace with edge is 15mm, the inclines of eight terrace with edges and bottom surface
Angle is 85 °, the high 12mm of terrace with edge.
2) 1) the middle eight prismatic table shape ceramic phase reinforcements that prepare are subjected to chemical nickel plating.
3) 2) the middle several eight prismatic table shape ceramic phase reinforcements that prepare are arranged on compression roller casting mold cavity working face, are cast
Spheroidal graphite cast-iron prepares compression roller roll body.
4) on the basis of 3), built-up welding height is resistance in the gap that eight prismatic table shape ceramic phase reinforcements are exposed on compression roller roll body surface
Mill property material, gage of wire 3.2mm；Using DC reverse connection method；Welding parameter are as follows: welding current 480A, weldingvoltage 34V, weldering
Meet speed 680mm/min.
5) on the basis of 4), on compression roller roll body surface without the position built-up welding high abrasion of eight prismatic table shape ceramic phase reinforcements
Property material, gage of wire 3.2mm；Using DC reverse connection method；Welding parameter are as follows: welding current 480A, weldingvoltage 34V, welding
Speed 680mm/min.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, and it is other it is any without departing from the spirit and principles of the present invention made by change, modification, substitution, combination, letter
Change, is included within the scope of the present invention.
It is noted that core of the invention is the abrasion song according to press roll surface face blanking port and rest part
Line devises the composite wear-resistant layer and whole overlay cladding, two-part wearability and wear curve kissing on compression roller roll body surface
It closes, can make the wearing layer on compression roller roll body surface almost in this way while abrasion finishes, entire wearing layer service life matches, and has
It is repaired conducive to online, it is the innovation in terms of roller press squeeze roll that repair time, which is easily mastered,.
Claims (7)
1. a kind of wear-resisting compression roller, which is characterized in that described including roll body (1), composite wear-resistant layer (2) and whole overlay cladding (3)
Composite wear-resistant layer (2) and whole overlay cladding (3) are separately positioned on the two sides of roll body (1), the composite wear-resistant layer (2) and whole heap
The top of layer (3) is concordant；Wherein, the composite wear-resistant layer (2) by ceramic phase reinforcement (4) castingin into constituting in steel material,
Heap is welded with the filling overlay cladding (5) of high-wearing feature material composition, the whole built-up welding between the adjacent composite wear-resistant layer (2)
Layer (3) heap is welded with high-wearing feature material.
2. wear-resisting compression roller according to claim 1, which is characterized in that the number and roller of the composite wear-resistant layer (2)
The blanking port number of press is consistent.
3. wear-resisting compression roller according to claim 1, which is characterized in that the ceramic phase reinforcement (4) is interspersed,
Roll body (1) surface is in honeycomb.
4. wear-resisting compression roller according to claim 1, which is characterized in that the ceramic phase reinforcement (4) exposes steel material
Expect surface certain altitude, and the height of the ceramic phase reinforcement (4) is identical as the thickness of whole overlay cladding (3).
5. wear-resisting compression roller according to claim 1, which is characterized in that the section of the ceramic phase reinforcement (4) is
Round table-like or prism-frustum-shaped.
6. wear-resisting compression roller according to claim 5, which is characterized in that the section radius of the ceramic phase reinforcement (4)
Or the lesser one end of circumradius is placed in roll body (1) outside, radius or the biggish one end of circumradius are placed in roll body
(1) internal.
7. wear-resisting compression roller according to claim 6, the section radius or external of the honeycomb type ceramic reinforcement (4)
The radius of the biggish one end of radius of circle is 6-20mm, the bus of rotary table or the incline of terrace with edge and the angle of bottom surface is 59 ° -89 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910162180.6A CN109731635A (en) | 2019-03-05 | 2019-03-05 | A kind of wear-resisting compression roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910162180.6A CN109731635A (en) | 2019-03-05 | 2019-03-05 | A kind of wear-resisting compression roller |
Publications (1)
| Publication Number | Publication Date |
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| CN109731635A true CN109731635A (en) | 2019-05-10 |
Family
ID=66369325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910162180.6A Withdrawn CN109731635A (en) | 2019-03-05 | 2019-03-05 | A kind of wear-resisting compression roller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112317056A (en) * | 2020-09-03 | 2021-02-05 | 常熟市电力耐磨合金铸造有限公司 | Roll sleeve of casting roll press and preparation method thereof |
| CN113569346A (en) * | 2021-06-04 | 2021-10-29 | 中信重工机械股份有限公司 | Mill lining plate design method based on 3D scanning and point cloud post-processing analysis |
| CN114939471A (en) * | 2022-05-23 | 2022-08-26 | 郑州机械研究所有限公司 | Wear-resistant structure |
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Application publication date: 20190510 |
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| WW01 | Invention patent application withdrawn after publication |