CN109047700A - A kind of compound body of roll production method of bimetallic - Google Patents
A kind of compound body of roll production method of bimetallic Download PDFInfo
- Publication number
- CN109047700A CN109047700A CN201810793600.6A CN201810793600A CN109047700A CN 109047700 A CN109047700 A CN 109047700A CN 201810793600 A CN201810793600 A CN 201810793600A CN 109047700 A CN109047700 A CN 109047700A
- Authority
- CN
- China
- Prior art keywords
- roll
- metal
- bimetallic
- compound
- roll production
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 150000001875 compounds Chemical class 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 52
- 229910052751 metal Inorganic materials 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000007711 solidification Methods 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 229910000746 Structural steel Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 230000003064 anti-oxidating Effects 0.000 claims description 3
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- 239000010410 layers Substances 0.000 description 17
- 241001081830 Degeneriaceae Species 0.000 description 10
- 238000001816 cooling Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- -1 melting Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000007769 metal materials Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 281000164016 Baidu companies 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 230000001351 cycling Effects 0.000 description 1
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- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000011514 iron Substances 0.000 description 1
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- 238000000034 methods Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reactions Methods 0.000 description 1
- 238000002360 preparation methods Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000010301 surface-oxidation reactions Methods 0.000 description 1
- 239000011901 water Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
Abstract
The present invention provides a kind of compound body of roll production method of bimetallic, comprising the following steps: the production of body of roll metal mold；Body of roll metal mold is placed on centrifuge support roller；It is poured outer sphere molten metal and forms working lining；Casting inner layer metal liquid forms internal layer after outer sphere molten metal solidification.The body of roll is made of two kinds of materials, can be depending on the different condition of work, and the hardness of body of roll working lining is high, intensity is high, rather than working lining toughness is high, intensity is high and machinability is good.
Description
[technical field]
The present invention relates to metal smelt industries, more particularly, to a kind of compound body of roll production method of bimetallic.
[background technique]
The annual output of current China hot continuous rolling steel is more than 1,000,000,000 tons, and million tons of annual consumption or more of roll, tradition is raw
The roll of production technology production be that the mode of outer cooled is: for inhibit roll when being on active service surface with it is red-hot (usual 1100 DEG C~
1150 DEG C) rolled piece contact and cause temperature increase and to contact carry out sufficient medium (usually water) cool down.The cooling
Mode is to inhibit roll surface temperature rise to a certain extent, but make impact of the roller surface by cold cycling, generates big outer change
Stress, generating roll surface prematurely, fatigue crack is resistance to make roll surface fail.Furthermore the type of cooling exists
Also inevitably rolled piece is cooled down while cooling roll surface, the cooling of rolled piece is caused, for the temperature for making up this part
Loss, the heating tapping temperature of steel billet have to improve tens of degree even nearly Baidu, this, which means that, increases energy consumption, adds
The big burden of heating equipment, rolled piece are flooded leaching at high temperature and surface oxidation are caused to aggravate, and generate a large amount of iron scale, both
It is degrading rolling operation, and reduces steel yield rate.
[summary of the invention]
Goal of the invention of the invention is: for overcome the deficiencies in the prior art, provide one kind can make prick roller cooling but
The inner-cooled temp auto-controlled for not influencing rolled piece temperature pricks roller.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of compound body of roll production method of bimetallic, comprising the following steps: body of roll metal mold production；By the body of roll metal
Type is placed on centrifuge support roller；It is poured outer sphere molten metal and forms working lining；Thermit reaction forms a kind of cermet compositions
Matter, the specific gravity of the substance are slightly lighter than the molten metal of subsequent addition；It is filled with above-mentioned substance and metal liquid, which is Gao Jin
Part is synthesized, there is high rigidity, high-wearing feature；Casting inner layer metal liquid forms internal layer after outer sphere molten metal solidification.
Further, the junction of the outer sphere molten metal and the inner layer metal liquid forms transition zone, the transition zone
With a thickness of 1mm-5mm.
Further, it in the casting outer sphere molten metal step also needs that anti-oxidation solvent is added.
Further, with the increase of amount of metal in metal mold, internal diameter is gradually reduced, if revolving speed is constant, linear velocity is therewith
Reducing, liquid metals is possible to generate to drench and fall, and it is generated here to be anti-, line inner hole linear velocity need to be kept not make big variation, so
It need to constantly adjust to rated value.
Further, the outer sphere molten metal is hypo eutectoid medium alloy steel or hypereutectoid structure steel alloy.
Further, the inner layer metal liquid is middle carbon and low-alloy structural steel.
Further, the internal layer turnery processing forms leaf structure, and the leaf structure is increased for radiating
Heat dissipation area.
Further, the internal layer is coated with metal coating, and the metal coating has high thermal conductivity and high anti-oxidation
Property.
Further, the body of roll metal mold is ductile cast iron material.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
The body of roll is made of two kinds of materials, can be depending on the different condition of work, and the hardness of body of roll working lining is high, strong
Degree is high, rather than working lining toughness is high, intensity is high and machinability is good.
[Detailed description of the invention]
Fig. 1 is a flow chart of the compound body of roll production method of bimetallic of the present invention.
[specific embodiment]
Below with reference to embodiment, the invention will be further described.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment 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.
Referring to Fig. 1, a kind of compound body of roll production method of bimetallic, comprising the following steps:
Body of roll Design of Permanent Mould, production；
Coating, drying are hung in casting mold preheating；
Casting mold installation, installation running gate system；
The allotment of outer layer metal material, melting, chemical examination, thermometric, weighing；
Booting casting outer sphere molten metal；
The allotment of inner layer metal material, melting, chemical examination, thermometric, weighing；
Inner layer metal liquid is poured after outer layer solidification；
After the solidification of inner layer metal liquid and when some strength, shuts down, remove casting mold；
Blank is taken out at 850 DEG C -900 DEG C of internal layer temperature；
800 DEG C of -850 DEG C of blanks are packed into resistance furnace samming 2-3 hours and are come out of the stove with being furnace-cooled to 250 DEG C.
The technological parameter of the compound body of roll of centrifugal casting is as shown in table 1:
Table 1
A: with the increase of amount of metal in casting mold, internal diameter is gradually reduced, if revolving speed is constant, linear velocity reduces therewith, liquid
Metal is possible to generate to drench and fall, and generates here to be anti-, line inner hole linear velocity need to be kept not make big variation, so need to constantly adjust
To rated value.
B: it when 800 DEG C~900 DEG C of blank is put into resistance furnace 3 fluctuation of heat preservation, comes out of the stove with being furnace-cooled to 250 DEG C.
The junction of outer sphere molten metal and inner layer metal liquid forms transition zone, transition region thickness 1mm-5mm.Make two kinds of materials
Material mixing or do not combine product grain, carbide under as cast condition it is tiny, it is uniform, without composition be segregated.Outer sphere molten metal is to close in hypo eutectoid
Golden steel or hypereutectoid structure steel alloy.Inner layer metal liquid is middle carbon and low-alloy structural steel.The working lining of the compound body of roll of bimetallic and interior
The chemical component of layer is as shown in table 2:
Table 2
Internal layer turnery processing forms leaf structure, and the leaf structure increases heat dissipation area for radiating.Internal layer
It is coated with metal coating, metal coating has high thermal conductivity and high antioxidant.Body of roll metal mold is ductile cast iron material.
The compound body of roll of bimetallic of the method for the present invention production is made of two kinds of materials, can be according to the different condition of work
Depending on, the hardness of body of roll working lining is high, intensity is high, rather than working lining toughness is high, intensity is high and machinability is good, meets work
Make demand.
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 (9)
1. a kind of compound body of roll production method of bimetallic, which comprises the following steps:
The production of body of roll metal mold；
The body of roll metal mold is placed on centrifuge support roller；
It is poured outer sphere molten metal and forms working lining；
Thermit reaction forms a kind of cermet compositions matter, and the specific gravity of the substance is slightly lighter than the molten metal of subsequent addition；
It is filled with above-mentioned substance and metal liquid, which is that high gold synthesizes part, has high rigidity, high-wearing feature；
Casting inner layer metal liquid forms internal layer after outer sphere molten metal solidification.
2. the compound body of roll production method of bimetallic according to claim 1, it is characterised in that: the outer sphere molten metal and institute
The junction for stating inner layer metal liquid forms transition zone, and the transition region thickness is 1mm-5mm.
3. the compound body of roll production method of bimetallic according to claim 1, it is characterised in that: the casting outer sphere molten metal
It also needs that anti-oxidation solvent is added in step.
4. the compound body of roll production method of bimetallic according to claim 1, it is characterised in that: with amount of metal in metal mold
Increase, internal diameter is gradually reduced, if revolving speed is constant, linear velocity reduces therewith, and liquid metals, which is possible to generate leaching, to be fallen, for it is anti-here
It generates, line inner hole linear velocity need to be kept not make big variation, so need to constantly adjust to rated value.
5. the compound body of roll production method of bimetallic according to claim 1, it is characterised in that: the outer sphere molten metal is Asia
Eutectoid medium alloy steel or hypereutectoid structure steel alloy.
6. the compound body of roll production method of bimetallic according to claim 1, it is characterised in that: during the inner layer metal liquid is
Carbon and low-alloy structural steel.
7. the compound body of roll production method of bimetallic according to claim 1, it is characterised in that: the internal layer turnery processing shape
At leaf structure, the leaf structure increases heat dissipation area for radiating.
8. the compound body of roll production method of bimetallic according to claim 7, it is characterised in that: the internal layer is coated with metal
Coating, the metal coating have high thermal conductivity and high antioxidant.
9. the compound body of roll production method of bimetallic according to claim 1, it is characterised in that: the body of roll metal mold is ball
Black cast iron materials.
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| CN201810793600.6A CN109047700A (en) | 2018-07-19 | 2018-07-19 | A kind of compound body of roll production method of bimetallic |
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| CN201810793600.6A CN109047700A (en) | 2018-07-19 | 2018-07-19 | A kind of compound body of roll production method of bimetallic |
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