CN110004365A - Plate blank continuous casting roll Noval bearing seat - Google Patents
Plate blank continuous casting roll Noval bearing seat Download PDFInfo
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- CN110004365A CN110004365A CN201910301739.9A CN201910301739A CN110004365A CN 110004365 A CN110004365 A CN 110004365A CN 201910301739 A CN201910301739 A CN 201910301739A CN 110004365 A CN110004365 A CN 110004365A
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- Prior art keywords
- bearing
- bearing block
- transparent cover
- continuous casting
- water tank
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
Abstract
The invention discloses a kind of plate blank continuous casting roll Noval bearing seats, belong to metallurgical machinery equipment technical field.Including bearing block ontology and two bearing air covers, first bearing transparent cover with bearing block ontology is detachable is fixedly connected, second bearing transparent cover and this body by integral forming of bearing block；Bearing block ontology and the material of second bearing transparent cover are steel alloy, and the material of bearing block ontology and second bearing transparent cover includes the chemical component of following mass percent: C:0.20~0.30%；Cr:0.8~1.5%；Mo:0.2~0.35%；Mn:0.5~1.0%；Si:0.15~0.35%；S :≤0.025%；P :≤0.025%.Plate blank continuous casting roll Noval bearing seat provided by the invention is arranged by the integrated molding of second bearing transparent cover and bearing block ontology, increases the intensity of bearing block；Meanwhile by the setting of the material composition, under the premise of so that toughness of material is met use, the yield strength of yield strength Q345 material common compared with such bearing block is enhanced about more than once, and further improves the intensity external force resistance intensity of bearing block.
Description
[technical field]
The present invention relates to metallurgical machinery equipment technical fields, and in particular to a kind of plate blank continuous casting roll Noval bearing seat.
[background technique]
The continuous casting process technology of steel-making is that liquid molten steel is changed into the production of the solid-state green body of different shape and size
Journey.In a variety of continuous casting process technologies, sheet billet continuous casting technology is the most complicated, and equipment investment is big.The key of slab connection is set
The consumption of standby connection roller is big.
The annual output of the current carbon sheet in China is about 700,000,000 tons, and slab is the preceding working procedure of plate production.Sheet billet continuous casting
The consuming cost of roller is about 11 yuan/ton of bases, that is to say, that the consumption of the annual plate blank continuous casting roll in China is 70~8,000,000,000 yuan.It improves
The manufacturing technology of plate blank continuous casting roll, prolonging its service life is the key that reduction slab production cost, and the state of energy conservation, consumption reduction
Plan.
According to the offline reason progress statistical form to fail of being on active service to sheet billet continuous casting production line segmental arc, horizontal segment Continuous Casting Rolls
Bright: roller covers 60~80% that big jerk value, bearing wear, bearing damage etc. account for the offline roller of failure.
According to the offline plate blank continuous casting roll correlation of failing set up it is being detected statistics indicate that: roller covers that jerk value is big, axis
Holding abrasion etc. and the deflection of bearing block has greatly direct relation.The deformation of bearing block causes the premature seal failure of sealing element,
Bearing housing is caused to be intake, lubricating grease failure leads to the abrasion of bearing, and the jerk value of roller set is big, causes whole roller that can not be on active service.
And in the prior art, the bearing block of sheet billet continuous casting production line segmental arc, horizontal segment Continuous Casting Rolls is in bearing block roof
Between position section it is small, be the most weak place of section in entire bearing block structure at this, and due to by assembly relation and using item
The limitation of part can not improve the anti-deformation intensity of entire bearing block by increasing the thickness at this.And external force resistance deforms at this
Intensity difference, be the key factor for causing entire bearing block to deform under external force, and then sealing element is caused to deform, sealing
Failure, bearing lubrication condition deteriorate, shaft strength worsening condition, until damage bearing.
In addition, the bearing block ontology material of traditional plate blank continuous casting roll segmental arc, horizontal segment is mostly Q345.Q345 belongs to heat
Carbon low-alloy structural steel is rolled, the material elevated temperature strength is low, is unsuitable for making the workpiece to work under hot conditions.And sheet billet continuous casting
Production line segmental arc, horizontal segment Continuous Casting Rolls working condition be in 1300 DEG C or so red steel bases closely (nearest 5mm) long term thermals
The lower work of radiation, needs material to have good elevated temperature strength performance, can just slow down the deformation of bearing block.
Therefore, it is necessary to manufacture a kind of plate blank continuous casting roll Noval bearing seat, solves bearing block in the prior art and be easy
The problem of deformation, making it during service has reliable working condition, avoids roller set jerk value big and bearing wear, extends continuous casting
Roller service life.
[summary of the invention]
It is an object of the invention to: in order to overcome the shortcomings in the prior art, provide a kind of plate blank continuous casting roll novel bearing
Seat to solve the problems, such as that plate blank continuous casting roll is easily deformed with bearing block, and then is solved by being commonly improved to structure and material
The problem that roller set jerk value is big caused by being easily deformed because of bearing block, bearing wear, Continuous Casting Rolls service life are short.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of plate blank continuous casting roll Noval bearing seat, including bearing block ontology and two bearing air covers, on bearing block ontology
Equipped with the bearing mounting hole for running through bearing block ontology, bearing mounting hole is for installing plate blank continuous casting roll bearing；Two bearing air covers
Including first bearing transparent cover and second bearing transparent cover, first bearing transparent cover and second bearing transparent cover are respectively arranged at bearing mounting hole
Both ends；First bearing transparent cover with bearing block ontology is detachable is fixedly connected, second bearing transparent cover and bearing block ontology one
Molding；
Bearing block ontology and the material of second bearing transparent cover are steel alloy, the material of bearing block ontology and second bearing transparent cover
Chemical component including following mass percent: C:0.20~0.30%；Cr:0.8~1.5%；Mo:0.2~0.35%；Mn:
0.5~1.0%；Si:0.15~0.35%；S :≤0.025%；P :≤0.025%.
Further, bearing block ontology and second bearing transparent cover are smelted by following chemical components, each chemical component institute
Account for weight percent are as follows: C:0.25~0.30%；Cr:0.8~1.5%；Mo:0.2~0.35%；Mn:0.5~1.0%；Si:
0.15~0.35%；S :≤0.020%；P :≤0.025%；Surplus is Fe and inevitable impurity.
Further, bearing block ontology further includes integrally formed the first side wall, arcuate top wall, second sidewall and bottom wall；
The first side wall, arcuate top wall, second sidewall and bottom wall surround bearing mounting hole radially；Around the first side wall, arcuate top wall
It is equipped with the cooling water tank being recessed to bearing block body interior with the outside of second sidewall, the top of cooling water tank is sealed equipped with water tank
Plate, water tank sealing plate and bearing block ontology are tightly connected；The limbers being connected to outside is equipped in cooling water tank.
Further, water tank sealing plate is the hot-rolled stainless steel plate of 06cr23ni13 material.
Further, water tank sealing plate is smelted by following chemical components, weight percent shared by each chemical component are as follows: C:
0.20~0.30%；Cr:0.8~1.5%；Mo:0.2~0.35%；Mn:0.5~1.0%；Si:0.15~0.35%；S:≤
0.025%；P :≤0.025%；Surplus is Fe and inevitable impurity.
Further, the arc top position in cooling water tank positioned at arcuate top wall is provided with the branch of preset length and predetermined width
Support part, the lower end of support portion connect the bottom in cooling water tank, and the upper end of support portion is fastenedly connected water tank sealing plate；Support portion is in axis
The width held in mounting hole axial direction is less than width of the cooling water tank in bearing mounting hole axial direction.
Beneficial effects of the present invention include at least:
1. plate blank continuous casting roll Noval bearing seat provided by the invention passes through second bearing transparent cover and the one of bearing block ontology
Body formed setting increases the intensity of bearing block, avoids since the limitation of assembly space not can increase bearing block ontology on edge
The rigid poor problem of bearing block caused by the thickness of plate blank continuous casting roll in the radial direction；Also, pass through second bearing transparent cover
Integrated molding with bearing block ontology is arranged, without increasing the thickness of bearing block in the axial direction along plate blank continuous casting roll, not
Under conditions of changing traditional assembly space, the intensity of bearing block is increased substantially, the deformation of bearing block is significantly slowed down, thus
Slow down bearing wear, extends the service life of Continuous Casting Rolls.Meanwhile bearing block ontology and the material of second bearing transparent cover are set as wrapping
Include the chemical component of following mass percent: C:0.20~0.30%；Cr:0.8~1.5%；Mo:0.2~0.35%；Mn:0.5
~1.0%；Si:0.15~0.35%；S :≤0.025%；P :≤0.025%.The material of the ingredient is low-alloy structural steel, is led to
The performance of tissue inter-variable is had after crossing hot-working, so its comprehensive performance can be improved by heat treatment process, it is full in toughness of material
Under the premise of sufficient use, the yield strength (>=345N/mm of the yield strength of material compared with Q345 material2) be enhanced about more than once.
Also, the material has preferable calorific intensity, and welding performance is good.
2. being set as being smelted by following chemical components by the material to bearing block ontology and second bearing transparent cover, respectively
Weight percent shared by chemical component are as follows: C:0.25~0.30%；Cr:0.8~1.5%；Mo:0.2~0.35%；Mn:0.5~
1.0%；Si:0.15~0.35%；S :≤0.020%；P :≤0.025%；Surplus is Fe and inevitable impurity.Further
Ground reduces the content of sulphur while improving carbon content, further increase the thermal process performance of material, realizes that toughness of material is full
While foot uses, the yield strength of material is higher compared with the yield strength of Q345 material.
3. the hot-rolled stainless steel plate (σ=4mm) using 06cr23ni13 material is used as water tank sealing plate, the anti-height of the material
Warm oxidisability is strong, and thermal fatigue resistant to high temperatures is good, and the carbon content (< 0.08) of the material is low, in welding with parent material
The welding stress for diluting transition zone is small.
4. support portion is arranged by the arc top position for being located at arcuate top wall in cooling water tank, bearing block is further enhanced
The support strength of arc top position, slows down the deformation of slab production process bottom bracket.
[Detailed description of the invention]
Fig. 1 is the side structure schematic view of the bearing block in the embodiment of the present invention；
Fig. 2 is that side view structural representation is amplified on the top of the bearing block ontology and second bearing transparent cover in embodiment illustrated in fig. 1
Figure；
Fig. 3 is bearing block ontology and second bearing transparent cover overall structure diagram in the embodiment of the present invention；
Fig. 4 is that the overall structure of the bearing block ontology and another visual angle of second bearing transparent cover in the embodiment of the present invention is illustrated
Figure；
Fig. 5 is the schematic diagram of internal structure of the bearing block in the embodiment of the present invention；
Fig. 6 is the bottom substance schematic diagram of the bearing block in the embodiment of the present invention.
The label in accompanying drawing is: 1, bearing block ontology, 2, bearing air cover, 21, first bearing transparent cover, 22, second bearing it is saturating
Lid, 3, bearing mounting hole, 4, Continuous Casting Rolls through-hole, 5, bearing cover, 6, sealing mounting groove, 11, the first side wall, 12, arcuate top wall,
13, second sidewall, 14, bottom wall, 15, cooling water tank, 16, water tank sealing plate, 17, support portion, 18, threaded hole, 10, limbers.
[specific embodiment]
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
It should be noted that it can be directly on another component when component is referred to as " being fixed on " another component
Or there may also be components placed in the middle.When a component is considered as " connection " another component, it, which can be, is directly connected to
To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it
It can be and be set up directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical
", " horizontal ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Embodiment 1
Referring to Fig. 1-Fig. 4, a kind of plate blank continuous casting roll Noval bearing seat, including bearing block ontology 1 and two bearing air covers
2, bearing block ontology 1 is equipped with the bearing mounting hole 3 through 1 both ends of bearing block ontology, and bearing mounting hole 3 is for installing slab company
Casting roll bearing；Two bearing air covers 2 include first bearing transparent cover 21 and second bearing transparent cover 22, first bearing transparent cover 21 and second
Bearing air cover 22 is respectively arranged at bearing block ontology 1 along the both ends of 3 axis direction of bearing mounting hole；First bearing transparent cover 21 with
Bearing block ontology 1 is detachable to be fixedly connected, and second bearing transparent cover 22 and bearing block ontology 1 are integrally formed.
Bearing block ontology 1 and the material of second bearing transparent cover 22 are steel alloy, bearing block ontology 1 and second bearing transparent cover 22
Material include following mass percent chemical component: C:0.20%；Cr:1.5%；Mo:0.3%；Mn:0.8%；Si:
0.27%；S:0.025%；P:0.022%.
Content by control sulphur and phosphorus is respectively 0.025% and 0.022%, to reduce the tempering of bearing block bulk material
Brittleness improves the plasticity and toughness of steel；It is controlled by the low content of phosphorus, improves the welding performance of material；Molybdenum is controlled in material
Content be 0.3%, improve the harden ability and heat resistance of material.Pass through the setting of each element component ratio in the embodiment,
Make material by having the performance of tissue inter-variable after hot-working, so its comprehensive performance can be improved by heat treatment process, in material
Under the premise of material toughness meets use, the yield strength (>=345N/mm of the yield strength of the material compared with Q345 material2) improve one
Times or more.
Meanwhile being arranged by the integrated molding of second bearing transparent cover 22 and bearing block ontology 1, increase the strong of bearing block
Degree, avoids and leads since the limitation of assembly space not can increase bearing block ontology 1 along the thickness of plate blank continuous casting roll radially
The rigid poor problem of the bearing block of cause.
It should be noted that the first bearing transparent cover 21 and 22 installation site of second bearing transparent cover can be interchanged,
As long as there is one end of one of bearing air cover 2 and bearing block ontology 1 to be integrally formed to connect, at the same another bearing air cover 2 with
It is detachably fixed the other end for being connected to bearing block ontology 1, can also be able to satisfy axis while increasing bearing block intensity realizing
It holds and the installation and removal demand of plate blank continuous casting roll.
Referring to Fig. 2-Fig. 6, in the present embodiment, bearing block ontology 1 further includes integrally formed the first side wall 11, arched top
Wall 12, second sidewall 13 and bottom wall 14；The first side wall 11, arcuate top wall 12, second sidewall 13 and bottom wall 14 surround radially
Bearing mounting hole；It is equipped with along the outer wall of the first side wall 11, arcuate top wall 12 and second sidewall 13 to bearing block body interior
The cooling water tank 15 of recess, cooling water tank 15 are equipped with water tank sealing plate 16, and water tank sealing plate 16 and bearing block ontology 1 are tightly connected；
The limbers 10 being connected to outside is equipped in cooling water tank 15.
By the way that cooling water tank 15 is arranged on the outer wall of the first side wall 11, arcuate top wall 12 and second sidewall 13, and pass through
Limbers 10 and external connection are arranged, and from limbers 10 to 15 cooling water supply of cooling water tank, realize in slab production process
In cool to bearing block, guarantee the rigidity of bearing block, slow down the deformation of slab production process bottom bracket.
Referring to Fig. 5, Fig. 6, it is preferred that in the present embodiment, limbers 10 joins on the outside of bearing block ontology 1 and bottom wall 14
It is logical.By the setting, allows recirculated cooling water to supply by cooling water tank 15 of the bottom of bearing block on bearing block, be convenient for bearing
The integral installation of the workpiece such as seat.
Limbers 10 can be one or more.Preferably, limbers 10 is two, close out of cooling water tank 15 respectively
The position of 13 lower end of the first side wall 11 and second sidewall is connected on the outside of bearing block ontology 1 and bottom wall 14.Pass through the setting, benefit
In the circulation of cooling water.
In the present embodiment, water tank sealing plate 15 is the hot-rolled stainless steel plate of 06cr23ni13 material.The anti-height of the material
Warm oxidisability is strong, and thermal fatigue resistant to high temperatures is good, and the carbon content (< 0.08) of the material is low, in welding with parent material
The welding stress for diluting transition zone is small.
Referring to Fig. 1, Fig. 2, in the present embodiment, the arc top position in cooling water tank 15 positioned at arcuate top wall 12 is provided with pre-
If the support portion 17 of length and predetermined width, support portion 17 are used to support water tank sealing plate 16；Support portion 17 is in 3 axis of bearing mounting hole
Upward width is less than width of the cooling water tank in 3 axial direction of bearing mounting hole.
Support portion 17 is arranged in arc top position by being located at arcuate top wall in cooling water tank 15, strengthens bearing block arc top
The support strength of position slows down the deformation of slab production process bottom bracket.Width of the support portion 17 in 3 axial direction of bearing mounting hole
Degree is less than width of the cooling water tank 15 in bearing mounting hole axial direction, to ensure cooling water energy between the both ends of cooling water tank 15
Flowing.
Referring to Fig. 3, in the present embodiment, bearing air cover 2 includes Continuous Casting Rolls through-hole 4 and bearing cover 5；5 ring of bearing cover
Around Continuous Casting Rolls through-hole 4, Continuous Casting Rolls through-hole 4 runs through 2 two sides of bearing air cover, and the edge of bearing cover 5 is connected to bearing block
Around bearing mounting hole 3 on ontology 1, bearing cover 5 is for covering bearing；The lid of bearing cover 5 closes the side of bearing block ontology 1
Seal assembly mounting groove 6 equipped with annular, seal assembly mounting groove 6 is interior to be equipped with annular seal assembly.
Pacify by covering the side for closing bearing block ontology 1 in bearing cover 5 equipped with the sealing mounting groove 6 of annular, and in sealing
Annular seal assembly is set in tankage 6, realizes the sealing of plate blank continuous casting roll and bearing installation in bearing block.
Preferably, annular seal assembly includes outside framework oil seal circle, the outer wall of outside framework oil seal circle and the inner wall of sealing mounting groove 6
It is in close contact, the inner wall of outside framework oil seal circle is used to be in close contact with Continuous Casting Rolls.
By the setting, after so that Continuous Casting Rolls through-hole 4 is installed Continuous Casting Rolls, the bearing cover 5 on bearing air cover 2 can pass through bone
The appearance of frame oil seal washer and Continuous Casting Rolls fits closely.In this embodiment, lubrication is coated at the position of outside framework oil seal circle setting
Oil is further ensured that the air-tightness that bearing air cover 2 is connect with Continuous Casting Rolls.
In the present embodiment, outside framework oil seal circle includes outside framework oil seal ring outer wall and outside framework oil seal circle inner wall, around skeleton oil
The inner wall of seal is equipped with lip shape groove, and lip shape groove is for fitting closely Continuous Casting Rolls.By on the inner wall of outside framework oil seal circle
The setting of lip shape groove, is bonded outside framework oil seal circle with the connection of plate blank continuous casting roll closer, improves the closed air-tightness of bearing block.
In the present embodiment, plate blank continuous casting roll Noval bearing seat further includes folded ring sealing ring, and folded ring sealing ring is set to
In Continuous Casting Rolls through-hole 4, the hole wall of the outer wall and Continuous Casting Rolls through-hole 4 of folding ring sealing ring is in close contact.By folding setting for ring sealing ring
It sets, further improves the closed air-tightness of bearing block.
Referring to Fig. 5, in the present embodiment, in first bearing transparent cover 21 and on bearing block ontology 1 with first bearing transparent cover
One end of 21 connections is respectively corresponded equipped with threaded hole 18, and first bearing transparent cover 21 and bearing block ontology 1 pass through threaded hole 18 and spiral shell
Nail is fixedly connected.
First bearing transparent cover 21 is fixedly connected with bearing block ontology 1 by threaded hole 18 and screw, realizes that first bearing is saturating
Lid 21 is detachably fixed with bearing block ontology 1.
Embodiment 2
The embodiment is in embodiment 1 on the basis of the structure of the plate blank continuous casting roll Noval bearing seat, to bearing
Seat ontology 1 and the material composition of second bearing transparent cover 22 are adjusted, specifically: bearing block ontology 1 and second bearing transparent cover 22
Material be steel alloy, the material of bearing block ontology 1 and second bearing transparent cover 22 includes the chemical component of following mass percent:
C:0.23%；Cr:0.8%；Mo:0.25%；Mn:1.0%；Si:0.35%；S:0.020%；P:0.019%.
In the present embodiment, the content for controlling sulphur and phosphorus is respectively 0.020% and 0.019%, reduces bearing block ontology material
The temper brittleness of material improves the plasticity and toughness of steel；It is controlled by the low content of phosphorus, improves the welding performance of material；Material
The content of middle control molybdenum is 0.25%, improves the harden ability and heat resistance of material.It is 0.23% that carbon content is controlled in material, high
Material is improved while meeting bearing block work other machinery performance requirement in the low-alloy structural steel of other standard brands
The yield point and tensile strength of material.
The setting for passing through each element component ratio in the present embodiment, makes material by having the property of tissue inter-variable after hot-working
Can, so its comprehensive performance, under the premise of toughness of material meets use, the surrender of the material can be improved by heat treatment process
Yield strength (>=345N/mm of the intensity compared with Q345 material2) be enhanced about more than once.
Embodiment 3
On the basis of the embodiment is the structure of the plate blank continuous casting roll Noval bearing seat described in embodiment 1, to axis
The material composition for holding an ontology 1 and second bearing transparent cover 22 is adjusted, specifically: bearing block ontology 1 and second bearing transparent cover
22 material is steel alloy, the material of bearing block ontology 1 and second bearing transparent cover 22 include following mass percent chemistry at
Point: C:0.25%；Cr:1.1%；Mo:0.20%；Mn:0.5%；Si:0.22%；S:0.022%；P:0.021%.
In the present embodiment, the content for controlling sulphur and phosphorus is respectively 0.022% and 0.021%, reduces bearing block ontology material
The temper brittleness of material improves the plasticity and toughness of steel；It is controlled by the low content of phosphorus, improves the welding performance of material；Material
The content of middle control molybdenum is 0.20%, improves the harden ability and heat resistance of material；It is 0.25% that carbon content is controlled in material, high
Material is improved while meeting bearing block work other machinery performance requirement in the low-alloy structural steel of other standard brands
The yield point and tensile strength of material.
The setting for passing through each element component ratio in the present embodiment, makes material by having the property of tissue inter-variable after hot-working
Can, so its comprehensive performance, under the premise of toughness of material meets use, the surrender of the material can be improved by heat treatment process
Yield strength (>=345N/mm of the intensity compared with Q345 material2) be enhanced about more than once.
Embodiment 4
The embodiment is in embodiment 1 on the basis of the structure of the plate blank continuous casting roll Noval bearing seat, to bearing
Seat ontology 1 and the material composition of second bearing transparent cover 22 are adjusted, specifically: bearing block ontology 1 and second bearing transparent cover 22
Material be steel alloy, the material of bearing block ontology 1 and second bearing transparent cover 22 includes the chemical component of following mass percent:
C:0.30%；Cr:1.3%；Mo:0.35%；Mn:0.7%；Si:0.15%；S:0.018%；P:0.025%.
In the present embodiment, the content for controlling sulphur and phosphorus is respectively 0.018% and 0.025%, reduces bearing block ontology material
The temper brittleness of material improves the plasticity and toughness of steel；It is controlled by the low content of phosphorus, improves the welding performance of material；Material
The content of middle control molybdenum is 0.35%, improves the harden ability and heat resistance of material；It is 0.30% that carbon content is controlled in material, high
Material is improved while meeting bearing block work other machinery performance requirement in the low-alloy structural steel of other standard brands
The yield point and tensile strength of material.
The setting for passing through each element component ratio in the present embodiment, makes bearing block bulk material by having group after hot-working
The performance of phase transformation is knitted, so its comprehensive performance can be improved by heat treatment process, it, should under the premise of toughness of material meets use
Yield strength (>=345N/mm of the yield strength of material compared with Q345 material2) be enhanced about more than once.
Above-described embodiment 1 some chemical properties and its ratio comparison into embodiment 5 is as shown in table 1:
The some chemical properties ratio contrast table unit of 1 bearing block ontology 1 of table and 22 material of second bearing transparent cover: %
| Embodiment | C | Cr | Mo | Mn | Si | S | P |
| Embodiment 1 | 0.20 | 1.5 | 0.30 | 0.8 | 0.27 | 0.025 | 0.022 |
| Embodiment 2 | 0.23 | 0.8 | 0.25 | 1.0 | 0.35 | 0.020 | 0.019 |
| Embodiment 3 | 0.25 | 1.1 | 0.20 | 0.5 | 0.22 | 0.022 | 0.021 |
| Embodiment 4 | 0.30 | 1.3 | 0.35 | 0.7 | 0.15 | 0.018 | 0.025 |
Through the bearing block ontology 1 and 22 material of second bearing transparent cover progress machine to heterogeneity ratio in the various embodiments described above
Tool performance test, material yield strength comparison are as follows:
The yield strength contrast table of each bearing block bulk material in 2 embodiment 1-5 of table
| Embodiment | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Yield strength N/mm2 | 695 | 701 | 704 | 708 |
Embodiment 5
The present embodiment is on the basis of embodiment 1, the water tank sealing plate 15 in embodiment 1 to be replaced with material as described below
Water tank sealing plate 15: the water tank sealing plate 15 is smelted by following chemical components, weight percent shared by each chemical component are as follows:
C:0.20~0.30%；Cr:0.8~1.5%；Mo:0.2~0.35%；Mn:0.5~1.0%；Si:0.15~0.35%；S:
≤ 0.025%；P :≤0.025%；Surplus is Fe and inevitable impurity.
By the setting of the water tank sealing plate 15, material composition is close with the material composition of bearing block ontology 1, meets material
While performance, welding stress is reduced.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (6)
1. a kind of plate blank continuous casting roll Noval bearing seat, which is characterized in that described including bearing block ontology and two bearing air covers
Bearing block ontology is equipped with the bearing mounting hole through the bearing block ontology, and the bearing mounting hole is for installing sheet billet continuous casting
Roller bearing；Described two bearing air covers include first bearing transparent cover and second bearing transparent cover, the first bearing transparent cover and described
Second bearing transparent cover is respectively arranged at the both ends of the bearing mounting hole；The first bearing transparent cover and the bearing block ontology can
It is detachably fixed connection, the second bearing transparent cover and described this body by integral forming of bearing block；
The bearing block ontology and the material of the second bearing transparent cover are steel alloy, and the bearing block ontology and second bearing are saturating
The material of lid includes the chemical component of following mass percent: C:0.20~0.30%；Cr:0.8~1.5%；Mo:0.2~
0.35%；Mn:0.5~1.0%；Si:0.15~0.35%；S :≤0.025%；P :≤0.025%.
2. plate blank continuous casting roll Noval bearing seat according to claim 1, which is characterized in that the bearing block ontology and institute
It states second bearing transparent cover to be smelted by following chemical components, weight percent shared by each chemical component are as follows: C:0.25~
0.30%；Cr:0.8~1.5%；Mo:0.2~0.35%；Mn:0.5~1.0%；Si:0.15~0.35%；S:≤
0.020%；P :≤0.025%；Surplus is Fe and inevitable impurity.
3. plate blank continuous casting roll Noval bearing seat according to claim 1, which is characterized in that the bearing block ontology also wraps
Include integrally formed the first side wall, arcuate top wall, second sidewall and bottom wall；The first side wall, arcuate top wall, second sidewall and
Bottom wall surrounds the bearing mounting hole radially；Outside around the first side wall, arcuate top wall and second sidewall is equipped with
The cooling water tank being recessed to the bearing block body interior, the top of the cooling water tank are equipped with water tank sealing plate, the water tank envelope
Plate and the bearing block ontology are tightly connected；The limbers being connected to outside is equipped in the cooling water tank.
4. plate blank continuous casting roll Noval bearing seat according to claim 3, which is characterized in that the water tank sealing plate is
The hot-rolled stainless steel plate of 06cr23ni13 material.
5. plate blank continuous casting roll Noval bearing seat according to claim 3, which is characterized in that the water tank sealing plate is by following
Chemical component is smelted, weight percent shared by each chemical component are as follows: C:0.20~0.30%；Cr:0.8~1.5%；Mo:
0.2~0.35%；Mn:0.5~1.0%；Si:0.15~0.35%；S :≤0.025%；P :≤0.025%；Surplus be Fe and
Inevitable impurity.
6. plate blank continuous casting roll Noval bearing seat according to claim 3, which is characterized in that be located in the cooling water tank
The arc top position of arcuate top wall is provided with the support portion of preset length and predetermined width, and the lower end connection of the support portion is described cold
But the bottom in water tank, the upper end of the support portion are fastenedly connected the water tank sealing plate；The support portion is installed in the bearing
The upward width of hole axle is less than width of the cooling water tank in the bearing mounting hole axial direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910301739.9A CN110004365A (en) | 2019-04-16 | 2019-04-16 | Plate blank continuous casting roll Noval bearing seat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910301739.9A CN110004365A (en) | 2019-04-16 | 2019-04-16 | Plate blank continuous casting roll Noval bearing seat |
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| CN110004365A true CN110004365A (en) | 2019-07-12 |
Family
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| CN201910301739.9A Pending CN110004365A (en) | 2019-04-16 | 2019-04-16 | Plate blank continuous casting roll Noval bearing seat |
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Application publication date: 20190712 |