CN109332657A - A kind of Vertical Mill wear resistant roll set and preparation method thereof - Google Patents
A kind of Vertical Mill wear resistant roll set and preparation method thereof Download PDFInfo
- Publication number
- CN109332657A CN109332657A CN201811507627.0A CN201811507627A CN109332657A CN 109332657 A CN109332657 A CN 109332657A CN 201811507627 A CN201811507627 A CN 201811507627A CN 109332657 A CN109332657 A CN 109332657A
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- China
- Prior art keywords
- layer
- cast steel
- vertical mill
- casting
- abrasion resistant
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- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229910001208 Crucible steel Inorganic materials 0.000 claims abstract description 46
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 42
- 239000000956 alloy Substances 0.000 claims abstract description 42
- 238000005266 casting Methods 0.000 claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000005299 abrasion Methods 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims description 8
- 238000009750 centrifugal casting Methods 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 241001080061 Talides Species 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 239000004568 cement Substances 0.000 description 4
- 239000011651 chromium Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
-
- 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
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/56—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The present invention provides a kind of Vertical Mill wear resistant roll sets to be made of the normal steel casting layer and abrasion resistant cast steel layer set gradually from inside to outside, and the material of the normal steel casting layer is ZG20Mn cast steel, and the abrasion resistant cast steel layer material is alloy wear-resisting cast steel；The also uniform castingin in outer surface of the roller set has several hard alloy columnars, the flush with outer surface of the top surface of the hard alloy columnar and the abrasion resistant cast steel layer, and the bottom surface of hard alloy columnar passes through the abrasion resistant cast steel layer and extend into the normal steel casting layer.The present invention also provides a kind of preparation methods of Vertical Mill wear resistant roll set.After tested, the service life of roller set provided by the present invention, if considering two-sided use when as wheel the form of the foetus roller set, can be used 6 years or more at 3 years or more.
Description
Technical field
The present invention relates to the Vertical Mill technical field of production cement or cement slurry, especially a kind of Vertical Mill wear resistant roll set and its
Preparation method.
Background technique
The roller set majority of current country's Vertical Mill is the roller set of Technology of Welded Roller set or rich chromium cast iron material, since grinding roller of vertical mill is transported
Capable particularity, roller cover general half a year will built-up welding is primary or turn-over use it is (relative to tire roller) or even shorter.It is this
Situation directly affects the continuous production of cement production enterprise, increases operating cost.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of Vertical Mill wear resistant roll set and preparation method thereof, rollers
Service life is covered up to 3 years or more.
The technical solution adopted by the present invention to solve the technical problems is:
Present invention firstly provides a kind of Vertical Mill wear resistant roll sets, by the normal steel casting layer set gradually from inside to outside and wear-resisting casting
Steel layer composition, the material of the normal steel casting layer are ZG20Mn cast steel, and the abrasion resistant cast steel layer material is alloy wear-resisting cast steel；Institute
The also uniform castingin in outer surface for stating roller set has several hard alloy columnars, the top surface of the hard alloy columnar and the abrasion resistant cast steel layer
Flush with outer surface, the bottom surface of hard alloy columnar passes through the abrasion resistant cast steel layer and extend into the normal steel casting layer.
Embodiment as a further preference, the hardness of the normal steel casting layer are 220-260HB.
Embodiment as a further preference, hardness >=HRC58 of the abrasion resistant cast steel layer.
Embodiment as a further preference, the material of the hard alloy columnar are Talide.
Embodiment as a further preference, the hard alloy columnar are cylindrical body, the diameter of this cylindrical body is 5~
30mm。
Embodiment as a further preference, the distance of adjacent hard alloy intercolumniation are the 1~2 of hard alloy column diameter
Times.
Embodiment as a further preference, the length that the hard alloy columnar is extend into the normal steel casting layer are
10~100mm.
Embodiment as a further preference, the shape of roller set are wheel the form of the foetus, taper or cylinder.
Embodiment as a further preference, the alloy wear-resisting cast steel by following mass percentage elemental composition
Composition: 1.7-2.4%C, 0.3-1.1%Si, 0.3-1.1%Mn, 3-5%Cr, 0.5-2%Ni, 3-5%Mo, 2-6%V, 0-
0.05%P, 0-0.05%S, surplus Fe.
The present invention also provides a kind of preparation methods of Vertical Mill wear resistant roll set, include the following steps:
Step 1: making casting mould by required roller set shape in advance, and is put into mold corresponding position uniformly distributed hard
Matter alloy column, then in ready casting mould the molten steel of alloy wear-resisting cast steel described in centrifugal casting to form abrasion resistant cast steel
Layer；
Step 2: continuing the molten steel of centrifugal casting normal steel casting after the completion of the casting of abrasion resistant cast steel layer, right after casting
Roller set is whole to be heat-treated so that hardness >=HRC58 of abrasion resistant cast steel layer, the hardness of normal steel casting layer HB220-260 it
Between.
The positive effect of the present invention: the present invention is successively cast using normal steel casting and abrasion resistant cast steel bilayer molten steel, and is being cast
Haystellite column is inlayed inside steel, is allowed to merge completely with cast steel, i.e., by using normal steel casting as internal layer toughness
Layer, using the combination of alloy wear-resisting cast steel and hard alloy columnar as outer abrasion resistant layer, internal layer strong shock resistance, outer layer is hard
Matter alloy column undertakes main wear-resisting functions, and abrasion resistant cast steel undertakes secondary wear-resisting functions, and then effectively extends the use longevity of roller set
Life.By test, the service life of roller set provided by the present invention was at 3 years or more, if considered when as wheel the form of the foetus roller set double
Face uses, and can be used 6 years or more.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Vertical Mill wear resistant roll set of the present invention；
Fig. 2 is the surface texture schematic diagram of Vertical Mill wear resistant roll set of the present invention.
In figure: 1- normal steel casting layer；2- abrasion resistant cast steel layer；3- hard alloy columnar.
Specific embodiment
With reference to the accompanying drawing to a preferred embodiment of the present invention will be described in detail.
Referring to FIG. 1 and FIG. 2, the preferred embodiment of the present invention provides a kind of Vertical Mill wear resistant roll set, by setting gradually from inside to outside
Normal steel casting layer 1 and abrasion resistant cast steel layer 2 form, the material of the normal steel casting layer 1 is ZG20Mn cast steel (its chemical component symbol
Close the requirement of national standard GB/T11352-2009), 2 material of abrasion resistant cast steel layer is alloy wear-resisting cast steel；The appearance of the roller set
The also uniform castingin in face has several hard alloy columnars 3, the outer surface of the top surface of the hard alloy columnar 3 and the abrasion resistant cast steel layer 2
Concordantly, the bottom surface of hard alloy columnar 3 passes through the abrasion resistant cast steel layer 2 and extend into the normal steel casting layer 1.
The hardness of the normal steel casting layer is 220-260HB.
Hardness >=HRC58 of the abrasion resistant cast steel layer.
The material of the hard alloy columnar is Talide.
The hard alloy columnar is cylindrical body, and the diameter of this cylindrical body is 20mm.Certainly, hard alloy columnar may be six
The other shapes such as square body.
In order to enable abrasive resistance maximizes, the distance of adjacent hard alloy intercolumniation is 1.5 times of the cylinder diameter.
For the overall performance for further increasing roller set, the hard alloy columnar extend into the length in the normal steel casting layer
For 50mm.
The shape of the roller set can take turns the form of the foetus, taper or cylinder according to actually required selection.
Illustrate as an example, the alloy wear-resisting cast steel is made of the elemental composition of following mass percentage:
1.7-2.4%C, 0.3-1.1%Si, 0.3-1.1%Mn, 3-5%Cr, 0.5-2%Ni, 3-5%Mo, 2-6%V, 0-0.05%
P, 0-0.05%S, surplus Fe.
The present embodiment also provides a kind of preparation method of above-mentioned Vertical Mill wear resistant roll set, includes the following steps:
Step 1: making casting mould by required roller set shape in advance, and is put into mold corresponding position uniformly distributed hard
Matter alloy column, then in ready casting mould the molten steel of alloy wear-resisting cast steel described in centrifugal casting to form abrasion resistant cast steel
Layer；
Step 2: continuing the molten steel of centrifugal casting normal steel casting after the completion of the casting of abrasion resistant cast steel layer, right after casting
Roller set is whole to be heat-treated so that hardness >=HRC58 of abrasion resistant cast steel layer, the hardness of normal steel casting layer HB220-260 it
Between.
Specifically, heat treatment described in step 2 is according to " JB/T5944-1991 engineering machinery is heat-treated general technology item
Part " in it is quenched or annealing require execute.
Roller set provided by the invention can be used on the Vertical Mill of the materials such as pulverizing cement, slag, raw material, coal dust, be realized
3 years or more ultra-long time wear-resisting properties.
It is above-described to be merely a preferred embodiment of the present invention, it should be understood that the explanation of above embodiments is only used
In facilitating the understanding of the method and its core concept of the invention, it is not intended to limit the scope of protection of the present invention, it is all of the invention
Any modification for being made within thought and principle, equivalent replacement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of Vertical Mill wear resistant roll set, it is characterised in that: by the normal steel casting layer and abrasion resistant cast steel layer set gradually from inside to outside
Composition, the material of the normal steel casting layer are ZG20Mn cast steel, and the abrasion resistant cast steel layer material is alloy wear-resisting cast steel；The roller
The also uniform castingin in the outer surface of set has several hard alloy columnars, and the top surface of the hard alloy columnar is outer with the abrasion resistant cast steel layer
Flush, the bottom surface of hard alloy columnar pass through the abrasion resistant cast steel layer and extend into the normal steel casting layer.
2. a kind of Vertical Mill wear resistant roll set according to claim 1, it is characterised in that: the hardness of the normal steel casting layer is
220-260HB。
3. a kind of Vertical Mill wear resistant roll set according to claim 2, it is characterised in that: the hardness of the abrasion resistant cast steel layer >=
HRC58。
4. a kind of Vertical Mill wear resistant roll set according to claim 1 or 2 or 3, it is characterised in that: the material of the hard alloy columnar
Matter is Talide.
5. a kind of Vertical Mill wear resistant roll set according to claim 4, it is characterised in that: the hard alloy columnar is cylindrical body,
The diameter of this cylindrical body is 5~30mm.
6. a kind of Vertical Mill wear resistant roll set according to claim 5, it is characterised in that: the distance of adjacent hard alloy intercolumniation is
1~2 times of the cylinder diameter.
7. a kind of Vertical Mill wear resistant roll set according to claim 4, it is characterised in that: the hard alloy columnar extend into described
Length in normal steel casting layer is 10~100mm.
8. a kind of Vertical Mill wear resistant roll set according to claim 1, it is characterised in that: the shape of roller set is wheel the form of the foetus, taper
Or it is cylindrical.
9. a kind of Vertical Mill wear resistant roll set according to claim 1, it is characterised in that: the alloy wear-resisting cast steel is by following matter
Measure the elemental composition composition of percentage composition: 1.7-2.4%C, 0.3-1.1%Si, 0.3-1.1%Mn, 3-5%Cr, 0.5-2%
Ni, 3-5%Mo, 2-6%V, 0-0.05%P, 0-0.05%S, surplus Fe.
10. a kind of preparation method of the set of Vertical Mill wear resistant roll described in claim 1, which comprises the steps of:
Step 1: casting mould is made in advance by required roller set shape, and is put into uniformly distributed hard in mold corresponding position and closes
Principal column, then in ready casting mould the molten steel of alloy wear-resisting cast steel described in centrifugal casting to form abrasion resistant cast steel layer；
Step 2: continue the molten steel of centrifugal casting normal steel casting after the completion of the casting of abrasion resistant cast steel layer, to roller set after casting
Entirety is heat-treated, so that hardness >=HRC58 of abrasion resistant cast steel layer, the hardness of normal steel casting layer is between HB220-260.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507627.0A CN109332657A (en) | 2018-12-11 | 2018-12-11 | A kind of Vertical Mill wear resistant roll set and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507627.0A CN109332657A (en) | 2018-12-11 | 2018-12-11 | A kind of Vertical Mill wear resistant roll set and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109332657A true CN109332657A (en) | 2019-02-15 |
Family
ID=65303699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811507627.0A Pending CN109332657A (en) | 2018-12-11 | 2018-12-11 | A kind of Vertical Mill wear resistant roll set and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109332657A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191308545A (en) * | 1913-04-11 | 1914-04-09 | J G Jackson Ltd | Improvements in or connected with Abrasive Composition Rollers for use in Reducing Material by Crushing, Grinding, Rolling, and the like. |
| JPS63199061A (en) * | 1987-02-12 | 1988-08-17 | Sintokogio Ltd | Ceramic cast-in body and production thereof |
| JPH11226722A (en) * | 1998-02-16 | 1999-08-24 | Kubota Corp | Composite roll for rolling |
| US20060177683A1 (en) * | 2006-02-24 | 2006-08-10 | Jeff Ballyns | Method of producing clad metal products |
| CN202725245U (en) * | 2012-07-20 | 2013-02-13 | 成都市新力设备制造有限责任公司 | Roll shaft of roller press with casting panel roll surface |
| CN106513107A (en) * | 2016-11-15 | 2017-03-22 | 昆明理工大学 | Composite extrusion roller, and preparation method thereof |
| CN106881451A (en) * | 2016-12-29 | 2017-06-23 | 中钢集团邢台机械轧辊有限公司 | Hard alloy follows closely the manufacture method of roll-in roller |
| CN107150455A (en) * | 2017-06-01 | 2017-09-12 | 江苏双发机械有限公司 | A kind of composite casting hard alloy stud pressure roller and manufacture method |
| CN108342657A (en) * | 2018-03-27 | 2018-07-31 | 东北大学 | A kind of high abrasion cermet composite roll set and preparation method thereof |
| CN108855377A (en) * | 2018-07-03 | 2018-11-23 | 上海电气上重碾磨特装设备有限公司 | A kind of coal pulverizer mill roll sleeve and preparation method thereof |
| CN209124874U (en) * | 2018-12-11 | 2019-07-19 | 南京凯盛国际工程有限公司 | A kind of Vertical Mill wear resistant roll set |
-
2018
- 2018-12-11 CN CN201811507627.0A patent/CN109332657A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191308545A (en) * | 1913-04-11 | 1914-04-09 | J G Jackson Ltd | Improvements in or connected with Abrasive Composition Rollers for use in Reducing Material by Crushing, Grinding, Rolling, and the like. |
| JPS63199061A (en) * | 1987-02-12 | 1988-08-17 | Sintokogio Ltd | Ceramic cast-in body and production thereof |
| JPH11226722A (en) * | 1998-02-16 | 1999-08-24 | Kubota Corp | Composite roll for rolling |
| US20060177683A1 (en) * | 2006-02-24 | 2006-08-10 | Jeff Ballyns | Method of producing clad metal products |
| CN202725245U (en) * | 2012-07-20 | 2013-02-13 | 成都市新力设备制造有限责任公司 | Roll shaft of roller press with casting panel roll surface |
| CN106513107A (en) * | 2016-11-15 | 2017-03-22 | 昆明理工大学 | Composite extrusion roller, and preparation method thereof |
| CN106881451A (en) * | 2016-12-29 | 2017-06-23 | 中钢集团邢台机械轧辊有限公司 | Hard alloy follows closely the manufacture method of roll-in roller |
| CN107150455A (en) * | 2017-06-01 | 2017-09-12 | 江苏双发机械有限公司 | A kind of composite casting hard alloy stud pressure roller and manufacture method |
| CN108342657A (en) * | 2018-03-27 | 2018-07-31 | 东北大学 | A kind of high abrasion cermet composite roll set and preparation method thereof |
| CN108855377A (en) * | 2018-07-03 | 2018-11-23 | 上海电气上重碾磨特装设备有限公司 | A kind of coal pulverizer mill roll sleeve and preparation method thereof |
| CN209124874U (en) * | 2018-12-11 | 2019-07-19 | 南京凯盛国际工程有限公司 | A kind of Vertical Mill wear resistant roll set |
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Application publication date: 20190215 |
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