CN106345815B - Cemented carbide composite roll collar, composite roll ring group and composite ring preparation method - Google Patents
Cemented carbide composite roll collar, composite roll ring group and composite ring preparation method Download PDFInfo
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- CN106345815B CN106345815B CN201611046213.3A CN201611046213A CN106345815B CN 106345815 B CN106345815 B CN 106345815B CN 201611046213 A CN201611046213 A CN 201611046213A CN 106345815 B CN106345815 B CN 106345815B
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- hard alloy
- steel inner
- composite roll
- cemented carbide
- alloy overcoat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
- B23K20/023—Thermo-compression bonding
- B23K20/026—Thermo-compression bonding with diffusion of soldering material
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- Mechanical Engineering (AREA)
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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The embodiment of the invention discloses a kind of cemented carbide composite roll collar, composite roll ring group and composite ring preparation method, cemented carbide composite roll collar to include：Two steel inner sleeves and hard alloy overcoat；Steel inner sleeve includes base portion and lug boss, and base portion and lug boss are integrally formed, and base portion and lug boss are in hollow cylindrical respectively, base portion and lug boss is coaxial and internal diameter is equal, and the external diameter of base portion is more than the external diameter of lug boss；Hard alloy overcoat is in hollow cylindrical, and the internal diameter of hard alloy overcoat is more than the external diameter of lug boss, and the axial width of hard alloy overcoat is less than the axial width sum of two lug bosses in two steel inner sleeves, and the external diameter of hard alloy overcoat is equal with the external diameter of base portion；Binder course is filled with gap between hard alloy overcoat and two steel inner sleeves, the end face of steel inner sleeve is provided with the material filling hole being connected with gap；By the design to steel inner sleeve and hard alloy overcoat, the bond strength between steel inner sleeve and hard alloy overcoat is significantly enhanced.
Description
Technical field
The present invention relates to metal working technical area, more particularly to a kind of cemented carbide composite roll collar, composite roll ring group and
Composite ring preparation method.
Background technology
Roll be metallurgical and mechanical processing industry in a kind of conventional equipment component, a kind of and industrial material being easily lost
Material, carbide roll ring have hardness height, compression strength is big, wearability is good, corrosion resistant compared to the collars of traditional other materials
The advantages that corrosion is good, coefficient of friction is small, pyroconductivity is low, service life is long, the Product Precision of rolling is high, quality is good, is usually used in
High speed wire rolling, but carbide roll ring weight is big simultaneously, difficulty of processing is big, percent defective is high, alloy resource wastes big, price height,
Shock resistance and poor seismic behavior, in the case of by higher mill speed, draught pressure and thermal shock load, it is also easy to produce and splits
Line simultaneously extends rapidly, causes surface to peel off the generation with broken roller phenomenon.
For the machinability and shock resistance that reduce the price of carbide roll ring, improve carbide roll ring, industry
Cemented carbide composite roll collar is inside commonly used, i.e. outer layer uses hard alloy, and internal layer uses the preferable high strength steel of toughness,
Formed between ectonexine using adhesive bond, the usage amount of hard alloy can be largely saved, so as to reduce production cost.
But in current cemented carbide composite roll collar, between the hard alloy of outer layer and the high strength steel of internal layer, generally
The problem of bond strength is low be present.
The content of the invention
The goal of the invention of the present invention is that providing a kind of cemented carbide composite roll collar, composite roll ring group and composite ring makes
Method, to solve the problems, such as that it is low that existing cemented carbide composite roll collar combines.
First aspect according to an embodiment of the invention, there is provided a kind of cemented carbide composite roll collar, including：It is symmetrical arranged
Two steel inner sleeves and be sheathed on the hard alloy overcoats of described two steel outside of inner cover；
The steel inner sleeve includes base portion, and the lug boss being arranged in the base portion, the base portion and described
Lug boss is integrally formed, and the base portion and the lug boss are in hollow cylindrical, the base portion and the lug boss respectively
Coaxial and internal diameter is equal, and the external diameter of the base portion is more than the external diameter of the lug boss；
The hard alloy overcoat is in hollow cylindrical, and the internal diameter of the hard alloy overcoat is more than the outer of the lug boss
Footpath, the axial width of the hard alloy overcoat are less than the axial width sum of two lug bosses in described two steel inner sleeves, institute
The external diameter for stating hard alloy overcoat is equal with the external diameter of the base portion；
The end face of two lug bosses in described two steel inner sleeves is in contact, and the hard alloy overcoat is sheathed on institute
State the outside of lug boss；
Binder course is filled with gap between the hard alloy overcoat and described two steel inner sleeves, the steel inner sleeve
End face is provided with the material filling hole being connected with the gap.
The radial thickness of the hard alloy overcoat is 20mm~30mm.
The radial thickness of the base portion is 10mm~30mm, and the radial thickness of the lug boss is 10mm~20mm.
The binder course is 0.5mm~1mm in the thickness radially of the hard alloy overcoat, and the binder course is in institute
It is 0.5mm~1mm to state the thickness in the axial direction of hard alloy overcoat.
The material of the binder course is zinc-copper powder.
Second aspect according to an embodiment of the invention, there is provided a kind of cemented carbide composite roll collar group, by several above-mentioned
Cemented carbide composite roll collar, stack and form along the axial direction of the hard alloy overcoat, adjacent two steel inner sleeves one into
Type.
A kind of third aspect according to an embodiment of the invention, there is provided making side of above-mentioned cemented carbide composite roll collar
Method, comprise the following steps：
According to pre-set dimension, two steel inner sleeves and the hard alloy overcoat are processed, and by described two steel inner sleeves
Assembled with the hard alloy overcoat；
By material filling hole, irrigated into the gap between described two steel inner sleeves and the hard alloy overcoat binding material with
Binder course is formed, obtains combining blank；
Under vacuum conditions, the combination blank is heated to preset temperature；
Under the preset temperature, apply pressure to the end faces of described two steel inner sleeves, the pressure is towards the hard
The axial direction of alloy overcoat；
After being incubated preset time, the combination blank is cooled to 10 DEG C~35 DEG C, obtains the hard alloy composite roll
Ring.
It is described under vacuum conditions, by it is described combination blank be heated to preset temperature the step of in, the preset temperature ratio
The melting temperature of the binding material is high 50 DEG C~and 100 DEG C.
It is described that pressure is applied to the end face of described two steel inner sleeves under preset temperature, it is described under the preset temperature,
Apply pressure to the end faces of described two steel inner sleeves, the pressure towards the hard alloy overcoat axial direction the step of
In, the pressure gradually increases, and the scope of the pressure is 50N/mm2~500N/mm2。
After the insulation preset time, the combination blank is cooled to 10 DEG C~35 DEG C, the hard alloy is obtained and answers
In the step of closing collars, the preset time is 30min~2h.
From above technical scheme, cemented carbide composite roll collar provided in an embodiment of the present invention, composite roll ring group and multiple
Collars preparation method is closed, cemented carbide composite roll collar includes：Symmetrically arranged two steel inner sleeves and it is sheathed on two steel inner sleeves
Outside hard alloy overcoat；Steel inner sleeve includes base portion, and the lug boss being arranged in base portion, base portion and lug boss
It is integrally formed, base portion and lug boss are in hollow cylindrical respectively, base portion and lug boss is coaxial and internal diameter is equal, base portion
External diameter is more than the external diameter of lug boss；Hard alloy overcoat is in hollow cylindrical, and the internal diameter of hard alloy overcoat is more than lug boss
External diameter, the axial width of hard alloy overcoat are less than the axial width sum of two lug bosses in two steel inner sleeves, hard alloy
The external diameter of overcoat is equal with the external diameter of base portion；The end face of two lug bosses in two steel inner sleeves is in contact, outside hard alloy
It is sheathed on the outside of lug boss；Binder course, steel inner sleeve are filled with gap between hard alloy overcoat and two steel inner sleeves
End face be provided with the material filling hole being connected with gap；By the structure design to steel inner sleeve and hard alloy overcoat, and
Binder course is filled in the gap of steel inner sleeve and hard alloy overcoat, is significantly enhanced between steel inner sleeve and hard alloy overcoat
Bond strength, while power transmission, damping can be played a part of；It is bonded in addition, can also combine multiple cemented carbide composite roll collars
Together, Hardmetal materials are saved to greatest extent, so that cost is greatly lowered；The making side of cemented carbide composite roll collar
Method includes：According to pre-set dimension, two steel inner sleeves and hard alloy overcoat are processed, and by two steel inner sleeves and hard alloy
Overcoat assembles；By material filling hole, binding material is irrigated into the gap between two steel inner sleeves and hard alloy overcoat to form knot
Layer is closed, obtains combining blank；Under vacuum conditions, combination blank is heated to preset temperature；Under preset temperature, to two steel
The end face of inner sleeve applies pressure, axial direction of the pressure towards hard alloy overcoat；It is cold by blank is combined after being incubated preset time
But to 10 DEG C~35 DEG C, cemented carbide composite roll collar is obtained；This method makes bonding by the way that combination blank is heated into preset temperature
Material fusing forms molten bath, infiltration is mutually dissolved between the different metal of steel inner sleeve and hard alloy overcoat, to two steel inner sleeves
End face apply pressure when, bath space is compressed, and the binding material of binder course is uniformly filled up all gaps, further, since
It is vacuum environment, avoids the generation of oxidative phenomena, enables the different metal layer of steel inner sleeve and hard alloy overcoat purely
Diffusion, combine, so as to significantly enhance the bond strength between steel inner sleeve and hard alloy overcoat.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the sectional view of cemented carbide composite roll collar provided in an embodiment of the present invention；
Fig. 2 is the structural decomposition diagram of cemented carbide composite roll collar provided in an embodiment of the present invention；
Fig. 3 is the sectional view of cemented carbide composite roll collar group provided in an embodiment of the present invention；
Fig. 4 is the flow chart of the preparation method of cemented carbide composite roll collar provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of the manufacturing process of cemented carbide composite roll collar provided in an embodiment of the present invention.
In figure, 1- push-down heads；2- seaming chucks；3- heaters；4- vacuum furnace bodies；5- transmission rods；6- frames；7- hydraulic pressure systems
System；8- combines blank；9- vacuum systems；10- steel inner sleeves；20- hard alloy overcoats；30- binder courses；90- material fillings hole；91- bottoms
Portions；92- lug bosses.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to Fig. 1 to Fig. 2, first aspect according to embodiments of the present invention, there is provided a kind of cemented carbide composite roll collar, bag
Include：Symmetrically arranged two steel inner sleeves 10 and the hard alloy overcoat 20 being sheathed on outside two steel inner sleeves 10.
Wherein, steel inner sleeve 10 includes base portion 91, and the lug boss 92 being arranged in base portion 91, base portion 91 and convex
Play portion 92 to be integrally formed, base portion 91 and lug boss 92 are in hollow cylindrical respectively, and base portion 91 and lug boss 92 are coaxial and interior
Footpath is equal, and the external diameter of base portion 91 is more than the external diameter of lug boss 92.
Hard alloy overcoat 20 is in hollow cylindrical, and the internal diameter of hard alloy overcoat 20 is more than the external diameter of lug boss 92, firmly
The axial width of matter alloy overcoat 20 is less than the axial width sum of two lug bosses 92 in two steel inner sleeves 10, outside hard alloy
The external diameter of set 20 is equal with the external diameter of base portion 91.
The end face of two lug bosses 92 in two steel inner sleeves 10 is in contact, and hard alloy overcoat 20 is sheathed on lug boss 92
Outside.Steel inner sleeve 10 is made two, can convenient for assembly and processing.
Binder course 30, two steel inner sleeves 10 are filled with gap between hard alloy overcoat 20 and two steel inner sleeves 10
In, the end face of at least one steel inner sleeve 10 is provided with the material filling hole 90 being connected with gap, and binder course 30 is easy in material filling hole 90
The addition of the binding material of material.
The internal diameter of base portion 91 and lug boss 92 can carry out corresponding size according to the purposes of cemented carbide composite roll collar
Design, such as 120mm, 300mm.
Preferably, the radial thickness of hard alloy overcoat 20 is 20mm~30mm, and is no less than default roll abrasion loss.
The part contacted when groove is rolling concrete steel bar with reinforcing bar, namely the working portion of key wear.The width of hard alloy overcoat 20
More than the width of groove, it is therefore an objective to make Cemented Carbide Hardness high, wear-resisting so that the reinforcing bar of rolling has preferable outward appearance.
Preferably, the radial thickness of base portion 91 is 10mm~30mm, and the radial thickness of lug boss 92 is 10mm~20mm.
Preferably, binder course 30 is 0.5mm~1mm in the thickness radially of hard alloy overcoat 20, and binder course 30 exists
Thickness in the axial direction of hard alloy overcoat 20 is 0.5mm~1mm.
Preferably, the material of binder course 30 is zinc-copper powder.Zinc-copper powder can use the trades mark such as H65, H68, H70, H75.
From above technical scheme, cemented carbide composite roll collar provided in an embodiment of the present invention, including：It is symmetrically arranged
Two steel inner sleeves 10 and the hard alloy overcoat 20 being sheathed on outside two steel inner sleeves 10.Steel inner sleeve 10 includes base portion 91,
And the lug boss 92 in base portion 91 is arranged at, base portion 91 and lug boss 92 are integrally formed, base portion 91 and lug boss 92
It is in hollow cylindrical respectively, base portion 91 is coaxial with lug boss 92 and internal diameter is equal, and the external diameter of base portion 91 is more than lug boss 92
External diameter.Hard alloy overcoat 20 is in hollow cylindrical, and the internal diameter of hard alloy overcoat 20 is more than the external diameter of lug boss 92, hard
The axial width of alloy overcoat 20 is less than the axial width sum of two lug bosses 92 in two steel inner sleeves 10, hard alloy overcoat
20 external diameter is equal with the external diameter of base portion 91.The end face of two lug bosses 92 in two steel inner sleeves 10 is in contact, and hard closes
Golden overcoat 20 is sheathed on the outside of lug boss 92.Filled with knot in gap between hard alloy overcoat 20 and two steel inner sleeves 10
Layer 30 is closed, in two steel inner sleeves 10, the end face of at least one steel inner sleeve 10 is provided with the material filling hole 90 being connected with gap；Pass through
Steel inner sleeve 10 and hard alloy overcoat 20 are set and are oppositely arranged two steel inner sleeves 10 in assembling, hard alloy overcoat 20
It is sheathed on outside two steel inner sleeves 10, binder course is filled with the gap between hard alloy overcoat 20 and two steel inner sleeves 10
30, two steel inner sleeves 10 and hard alloy overcoat 20 are combined together, by steel inner sleeve 10 and hard alloy overcoat 20
Structure design, and in the gap of steel inner sleeve 10 and hard alloy overcoat 20 fill binder course 30, significantly enhance in steel
Bond strength between set 10 and hard alloy overcoat 20, while power transmission, damping can be played a part of.
Referring to Fig. 3, second aspect according to embodiments of the present invention, there is provided a kind of cemented carbide composite roll collar group, by counting
Individual above-mentioned cemented carbide composite roll collar, stack and form along the axial direction of hard alloy overcoat 20, adjacent two steel inner sleeves 10
It is integrally formed.
From above technical scheme, cemented carbide composite roll collar group provided in an embodiment of the present invention, by several above-mentioned hard
Matter alloy composite ring, stack and form along the axial direction of hard alloy overcoat 20, ensureing outside steel inner sleeve 10 and hard alloy
While there is higher bond strength between set 20, Hardmetal materials are saved to greatest extent, so that cost is significantly
Reduce.
Refer to Fig. 4 to Fig. 5, the third aspect according to embodiments of the present invention, there is provided a kind of above-mentioned hard alloy composite roll
The preparation method of ring, comprises the following steps：
Step S1, according to pre-set dimension, two steel inner sleeves 10 and hard alloy overcoat 20 are processed, and by two steel
Set 10 assembles with hard alloy overcoat 20.
Specifically, in step S1, the inner surface of hard alloy overcoat 20 and both ends of the surface use are mechanically or chemically cleaned,
Oil removing, steel inner sleeve 10 is machined into required shape, size and cleaned up.Wherein, mechanical means includes car, mill etc.
Traditional processing method, chemical method include refer to pickling, oil removing the methods of.
Step S2, by material filling hole 90, irrigated into the gap between two steel inner sleeves 10 and hard alloy overcoat 20 viscous
Ramming material obtains combining blank 8, needs to carry out vacuum heat diffusion combined process to combination blank 8 afterwards to form binder course 30.
Step S3, under vacuum conditions, combination blank 8 is heated to preset temperature.
As shown in figure 3, combination blank 8 can be put into vacuum furnace body 4, and by adding after being vacuumized using vacuum system 9
Hot device 3 heats.
Preferably, in step S3, preset temperature is higher than the melting temperature of binding material 50 DEG C~100 DEG C.
Step S4, under preset temperature, pressure is applied to the end faces of two steel inner sleeves 10, pressure is towards hard alloy overcoat
20 axial direction.
As shown in figure 3, combination blank 8 can be placed between seaming chuck 2 and push-down head 1, and pass through the hydraulic pressure of the lower section of frame 6
System 7, via transmission rod 5, pressure is applied to the end face of two steel inner sleeves 10.
Preferably, in step S4, pressure gradually increases, and the scope of pressure is 50N/mm2~500N/mm2.
Step S5, after being incubated preset time, combination blank is cooled to 10 DEG C~35 DEG C, obtains hard alloy composite roll
Ring.
Preferably, in step S5, preset time is 30min~2h.
From above technical scheme, the preparation method of cemented carbide composite roll collar provided in an embodiment of the present invention, first
According to pre-set dimension, two steel inner sleeves 10 and hard alloy overcoat 20 are processed, and by two steel inner sleeves 10 and hard alloy
Overcoat 20 assembles, and then by material filling hole 90, is irrigated into the gap between two steel inner sleeves 10 and hard alloy overcoat 20 viscous
Ramming material obtains combining blank 8 to form binder course 30, afterwards under vacuum conditions, combination blank 8 is heated into preset temperature,
Under preset temperature, pressure is applied to the end face of two steel inner sleeves 10, pressure is finally protected towards the direction of hard alloy overcoat 20
After warm preset time, combination blank is cooled to 10 DEG C~35 DEG C, obtains cemented carbide composite roll collar；By the way that combination blank is added
Heat arrives preset temperature, makes binding material melt to form molten bath, between the different metal of steel inner sleeve 10 and hard alloy overcoat 20 mutually
Solution pervasion, when applying pressure in the end face to two steel inner sleeves 10, bath space is compressed, and makes the binding material of binder course 30 equal
It is even to fill up all gaps, further, since being vacuum environment, the generation of oxidative phenomena is avoided, makes steel inner sleeve 10 and hard
The different metal layer of alloy overcoat 20 can purely spread, combine, so as to significantly enhance steel inner sleeve 10 and hard alloy overcoat
Bond strength between 20.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice invention disclosed herein
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including undocumented common knowledges in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (10)
- A kind of 1. cemented carbide composite roll collar, it is characterised in that including：Symmetrically arranged two steel inner sleeves (10) and it is sheathed on The outside hard alloy overcoat (20) of described two steel inner sleeves (10)；The steel inner sleeve (10) includes base portion (91), and the lug boss (92) being arranged in the base portion (91), described Base portion (91) and the lug boss (92) are integrally formed, and the base portion (91) and the lug boss (92) are in hollow circle respectively Column, the base portion (91) and the lug boss (92) are coaxial and internal diameter is equal, and the external diameter of the base portion (91) is more than institute State the external diameter of lug boss (92)；The hard alloy overcoat (20) is in hollow cylindrical, and the internal diameter of the hard alloy overcoat (20) is more than the lug boss (92) external diameter, the axial width of the hard alloy overcoat (20) are less than two lug bosses in described two steel inner sleeves (10) (92) axial width sum, the external diameter of the hard alloy overcoat (20) are equal with the external diameter of the base portion (91)；The end face of two lug bosses (92) in described two steel inner sleeves (10) is in contact, the hard alloy overcoat (20) It is sheathed on the outside of the lug boss (92)；Binder course (30) is filled with gap between the hard alloy overcoat (20) and described two steel inner sleeves (10), it is described In two steel inner sleeves (10), the end face of at least one steel inner sleeve (10) is provided with the material filling hole (90) being connected with the gap.
- 2. cemented carbide composite roll collar according to claim 1, it is characterised in that the footpath of the hard alloy overcoat (20) It is 20mm~30mm to thickness.
- 3. cemented carbide composite roll collar according to claim 1, it is characterised in that the radial thickness of the base portion (91) For 10mm~30mm, the radial thickness of the lug boss (92) is 10mm~20mm.
- 4. cemented carbide composite roll collar according to claim 1, it is characterised in that the binder course (30) is in the hard The thickness radially of alloy overcoat (20) is 0.5mm~1mm, and the binder course (30) is in the hard alloy overcoat (20) Thickness on axial direction is 0.5mm~1mm.
- 5. cemented carbide composite roll collar according to claim 1, it is characterised in that the material of the binder course (30) is zinc Copper powder.
- 6. a kind of cemented carbide composite roll collar group, it is characterised in that as several hard as described in any one of Claims 1 to 5 Alloy composite ring, stack and form along the axial direction of the hard alloy overcoat (20), adjacent two steel inner sleeves (10) one It is body formed.
- A kind of 7. preparation method of cemented carbide composite roll collar as described in any one of Claims 1 to 5, it is characterised in that bag Include following steps：According to pre-set dimension, process two steel inner sleeves and hard alloy overcoat, and by described two steel inner sleeves with it is described hard Matter alloy overcoat assembles；By material filling hole, binding material is irrigated into the gap between described two steel inner sleeves and the hard alloy overcoat to be formed Binder course, obtain combining blank；Under vacuum conditions, the combination blank is heated to preset temperature；Under the preset temperature, apply pressure to the end faces of described two steel inner sleeves, the pressure is towards the hard alloy The axial direction of overcoat；After being incubated preset time, the combination blank is cooled to 10 DEG C~35 DEG C, obtains the cemented carbide composite roll collar.
- 8. the preparation method of cemented carbide composite roll collar according to claim 7, it is characterised in that described in vacuum environment Under, combined described in the step of blank is heated to preset temperature, the preset temperature is higher than the melting temperature of the binding material 50 DEG C~100 DEG C.
- 9. the preparation method of cemented carbide composite roll collar according to claim 8, it is characterised in that described described default At a temperature of, pressure, axial direction of the pressure towards the hard alloy overcoat are applied to the end face of described two steel inner sleeves The step of in, the pressure gradually increases, and the scope of the pressure is 50N/mm2~500N/mm2。
- 10. the preparation method of cemented carbide composite roll collar according to claim 9, it is characterised in that the insulation is default After time, the combination blank is cooled to 10 DEG C~35 DEG C, it is described pre- in the step of obtaining the cemented carbide composite roll collar If the time is 30min~2h.
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| CN201611046213.3A CN106345815B (en) | 2016-11-22 | 2016-11-22 | Cemented carbide composite roll collar, composite roll ring group and composite ring preparation method |
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| CN201611046213.3A CN106345815B (en) | 2016-11-22 | 2016-11-22 | Cemented carbide composite roll collar, composite roll ring group and composite ring preparation method |
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| CN106345815B true CN106345815B (en) | 2018-04-03 |
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| CN102847714A (en) * | 2012-08-15 | 2013-01-02 | 浙江恒成硬质合金有限公司 | Composite hard alloy roller |
| CN203526201U (en) * | 2013-09-23 | 2014-04-09 | 三鑫重工机械有限公司 | Combined roller |
| CN206262978U (en) * | 2016-11-22 | 2017-06-20 | 湖南三泰新材料股份有限公司 | Cemented carbide composite roll collar and cemented carbide composite roll collar group |
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| CN106345815A (en) | 2017-01-25 |
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Denomination of invention: Cemented carbide composite roll ring, composite roll ring group and manufacturing method of composite roll ring Effective date of registration: 20211026 Granted publication date: 20180403 Pledgee: China Construction Bank Co.,Ltd. Loudi branch Pledgor: HUNAN 3T NEW MATERIAL Co.,Ltd. Registration number: Y2021430000063 |