CN201776418U - Continuous casting roller body of compound bimetal continuous casting machine - Google Patents
Continuous casting roller body of compound bimetal continuous casting machine Download PDFInfo
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- CN201776418U CN201776418U CN2010202504838U CN201020250483U CN201776418U CN 201776418 U CN201776418 U CN 201776418U CN 2010202504838 U CN2010202504838 U CN 2010202504838U CN 201020250483 U CN201020250483 U CN 201020250483U CN 201776418 U CN201776418 U CN 201776418U
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- continuous casting
- roller body
- casting roller
- bimetal
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Abstract
The utility model belongs to the field of components of continuous casting machines, and particularly relates to a continuous casting roller body of a compound bimetal continuous casting machine. The continuous casting roller body of a compound bimetal continuous casting machine is compounded by centrifugal casting bimetal materials, outer-layer materials of the continuous casting roller body are 1Cr13MoV, and inner-layer materials of the continuous casting roller body are 21CrMoV. The continuous casting roller body selects the 1Cr13MoV as the outer-layer materials, adopts the 21CrMoV as inner-layer materials and is fine in high temperature oxidability resistance, high temperature corrosion resistance, wear resistance and thermal fatigue resistance. The service life of the continuous casting roller body is greatly prolonged, roller surface fatigue and abrasion service life of the continuous casting roller body are doubled at least compared with a traditional continuous casting roller which overlays a layer of alloy on a low-alloy steel forge piece blank, and the continuous casting roller body can be popularized and applied to plate blank continuous casting machines.
Description
Technical field
The utility model belongs to the conticaster field of components, relates in particular to a kind of conticaster continuous casting roller roll body.
Background technology
The continuous casting roller is the equipment that carries out bending, aligning, guiding, traction than minimal thickness base shell and the strand that progressively solidifies in two cold-zones to becoming through cooled and solidified of conticaster crystallizer, it with temperature up to 900 ℃～1100 ℃ strand contacts and is subjected to its heat radiation, also be subjected to the casting blank bulging power that the molten steel static pressure causes and the effect of casting blank bending straightening force, add the influence of secondary chilling spray water etc., operating mode is very abominable, and roll surface is easy to generate fatigue crack under the alternating thermal stress effect.Under continuous casting production exchange tundish and stagnant base situation, when the casting machine pulling rate reduced to zero, two cold-zone cooling water majorities were in closed condition, the continuous casting roller stop operating and with high temperature strand Static Contact, under the effect of a large amount of thermic loads, roll surface is easy to produce high-temperature oxydation.
Because of the continuous casting particularity of working conditions, elevated temperature strength, high temperature oxidation resistance, resistance to high temperature corrosion, wearability, thermal fatigue resistance, resistance of crack propagation energy, plasticity and the fracture toughness etc. of continuous casting roller roll body material all had higher requirement.Actual production application shows that homogenous material is difficult to satisfy above-mentioned requirements.Therefore, traditional continuous casting roller roll body mostly adopts the method for built-up welding one deck alloy-layer on low-alloy steel forging blank to make.But adopt this method, exist overlay cladding metallographic structure and performance inhomogeneous, roll surface is tired and wear-out life is low, and the shortcomings such as residual stress distortion greatly that produce because of built-up welding of roll body manufacture process, and high material consumption, the manufacturing cost height.
Chinese patent CN101058099 " bimetallic centrifugal casting process for cylindrical casting " provides a kind of centrifugal casting composite bimetallic combination roll.Adopt the centrifugal casting composite manufacturing, casting out the roll surface top layer is the high alloy antifriction cast iron, internal layer is the compound roller shell of mild steel, and it is carried out machining, heat-treat again, with the mandrel that the processes compound roller shell of packing into, and axle and roller shell mild steel partly welded, with the Roller Machining that assembles to the size that requires.
The utility model content
Technical problem to be solved in the utility model has provided a kind of bimetal composite conticaster continuous casting roller roll body, this roll body selects for use 1Cr13MoV and 21CrMoV centrifugal casting to form, roll surface is smooth, high temperature oxidation resistance, resistance to high temperature corrosion, wearability, thermal fatigue resistance are good, have improved service life greatly.
The utility model is achieved in that a kind of bimetal composite conticaster continuous casting roller roll body, is composited by the bimetallic material of centrifugal casting, and cladding material is 1Cr13MoV, and inner layer material is 21CrMoV.
Described cladding material and inner layer material thickness are than being 1:2.
The utility model adopts centrifugal casting, so continuous casting roller roll surface is more smooth, machining amount is fewer, metal material and manufacturing cost have been saved, and avoided the remaining application of the bigger welding of weld deposit process may cause roll body distortion and built-up welding tissue odds even, shortcoming such as the tired and wear-out life of roll surface is low.Select for use 1Cr13MoV as cladding material in the bimetal composite material, 21CrMoV is as inner layer material, high temperature oxidation resistance, resistance to high temperature corrosion, wearability, thermal fatigue resistance are good, have improved service life greatly, have application value on slab caster.
Description of drawings
Fig. 1 looks sectional view for the master of the utility model bimetal composite conticaster continuous casting roller roll body structural representation;
Fig. 2 looks sectional view for the left side of the utility model bimetal composite conticaster continuous casting roller roll body structural representation.
Among the figure: 1 cladding material, 2 inner layer materials.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model statement, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 1, 2, a kind of bimetal composite conticaster continuous casting roller roll body is composited by the bimetallic material of centrifugal casting, and cladding material 1 is 1Cr13MoV, and inner layer material 2 is 21CrMoV; The thickness of described cladding material 1 and inner layer material 2 is than being 1:1.5～1:3; In the present embodiment, the thickness of choosing is than being 1:2.
The composition of inner layer material 21CrMoV and cladding material 1Cr13MoV sees Table 1, is existing well known materials.
Through conventional heat treatment, or after carrying out conventional heat treatment again after the extrusion process processing, the performance of bimetal composite conticaster continuous casting roller roll body of the present utility model is as shown in table 2.Roll surface fatigue and the more traditional continuous casting roller of built-up welding one deck alloy-layer on low-alloy steel forging blank of wear-out life are more than doubled.
Claims (2)
1. bimetal composite conticaster continuous casting roller roll body, it is characterized in that: the bimetallic material by centrifugal casting is composited, and cladding material is 1Cr13MoV, and inner layer material is 21CrMoV.
2. bimetal composite conticaster continuous casting roller roll body as claimed in claim 1 is characterized in that: described cladding material and inner layer material thickness are than being 1:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202504838U CN201776418U (en) | 2010-07-07 | 2010-07-07 | Continuous casting roller body of compound bimetal continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202504838U CN201776418U (en) | 2010-07-07 | 2010-07-07 | Continuous casting roller body of compound bimetal continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201776418U true CN201776418U (en) | 2011-03-30 |
Family
ID=43789651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202504838U Expired - Lifetime CN201776418U (en) | 2010-07-07 | 2010-07-07 | Continuous casting roller body of compound bimetal continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201776418U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550799A (en) * | 2013-10-28 | 2015-04-29 | Skf公司 | Continuous casting roller and method for its production |
| CN106076480A (en) * | 2016-07-07 | 2016-11-09 | 江苏双发机械有限公司 | A kind of roll squeezer alloy roller shell and processing method thereof |
-
2010
- 2010-07-07 CN CN2010202504838U patent/CN201776418U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550799A (en) * | 2013-10-28 | 2015-04-29 | Skf公司 | Continuous casting roller and method for its production |
| CN106076480A (en) * | 2016-07-07 | 2016-11-09 | 江苏双发机械有限公司 | A kind of roll squeezer alloy roller shell and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |