CN108672507A - A kind of metal mill guide wheel based on carbide composite material - Google Patents
A kind of metal mill guide wheel based on carbide composite material Download PDFInfo
- Publication number
- CN108672507A CN108672507A CN201810467794.0A CN201810467794A CN108672507A CN 108672507 A CN108672507 A CN 108672507A CN 201810467794 A CN201810467794 A CN 201810467794A CN 108672507 A CN108672507 A CN 108672507A
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- China
- Prior art keywords
- layer
- guide wheel
- protection alloy
- mill guide
- composite material
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
- B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- 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
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
- C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
- C23C8/64—Carburising
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention discloses a kind of metal mill guide wheel based on carbide composite material, including mill guide wheel, the mill guide wheel outer end also cladding have one layer of protection alloy-layer, the mill guide wheel and protection alloy-layer clearance fit；It is described protection alloy-layer chemical composition and its mass percentage (%) be：22.4 33.5% tungsten, 0.75 1.45% carbon, 15.6 16.7% bronze medals, 5.6 6.7% cobalts, surplus are iron；S ＜ 0.032, P ＜ 0.045；The present invention passes through the component selection to mill guide wheel, and to its processing Jing Guo each step, it is good can to obtain a kind of wear-resisting property, the strong metal mill guide wheel of high-temperature resistance, and the selection for passing through carbide composite material, on the one hand so that the comprehensive performance of the present invention is good, another aspect cost will not cause cost excessively high because performance is pursued；Mill guide wheel in the present invention can to the greatest extent avoid damaging when telling operating.
Description
Technical field
The invention belongs to metal mill guide wheel fields, are related to a kind of composite material, specifically a kind of compound based on carbide
The metal mill guide wheel of material.
Background technology
Guide and guard refer to just being mounted on the front and back help rolled piece of roll pass during rolling of sectional iron and pressing set direction and shape
State accurately, the device of steadily into and out roll pass；And guide and guard have following advantages：The oxidation of rolled piece can be removed
Iron sheet can make rolled piece surface more smooth；Rolled piece surface strength can be increased；It can also make that rolling process is safer, more simultaneously
Stablize；
And with the promotion of mill speed, sliding guide device is gradually replaced by guide wheel；Since guide wheel operating condition is disliked
It is bad, therefore it is required that guide wheel should have higher toughness, thermal fatigue resistance, anti-corrosion and oxidation resistance, there is high rigidity again
Wearability；
Invention content
The purpose of the present invention is to provide a kind of metal mill guide wheel based on carbide composite material.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of metal guide and guard based on carbide composite material, including mill guide wheel, the mill guide wheel outer end also cladding
There are one layer of protection alloy-layer, the mill guide wheel and protection alloy-layer clearance fit；
Wherein, the chemical composition of the protection alloy-layer and its mass percentage (%) are：
22.4-33.5% tungsten, 0.75-1.45% carbon, 15.6-16.7% copper, 5.6-6.7% cobalts, surplus are iron；S ＜
0.032, P ＜ 0.045；
The protection alloy-layer is prepared by following step：
Step 1：By 5.6-8 microns of grain size, the tungsten powder that purity is 99.98% is gone back under certain temperature hydrogen environment
Original place is managed, and keeps the temperature 1h；
Step 2：Simultaneously by 0.074 micron of grain size, the electrolytic copper powder that purity is 99.8% is also in the hydrogen ring of certain temperature
Reduction treatment is carried out under border, and keeps the temperature 1h；
Step 3：The tungsten powder and copper powder in mass ratio 8 after reduction:2.5 uniformly mixing；
Step 4：Then the cobalt powder of 1.35% mass fraction is added as activator, dries after mixing；
Step 5：After the completion of dispensing, it is pressed to obtain protection alloy-layer (2) using tetra- column press of 50t；
Step 6：High-temperature carburizing processing is carried out to protection alloy-layer (2).
Further, it is 860 ± 10 DEG C to the reduction treatment temperature of tungsten powder in the step 1；
It it is 300 ± 10 DEG C to the reduction treatment temperature of electrolytic copper powder in the step 2.
Further, the protection alloy-layer (2) protects the chemical composition and its mass percentage (%) of alloy-layer 2
For：
30% tungsten, 12% carbon, 16.5% bronze medal, 5.85% cobalt, surplus are iron；S ＜ 0.032, P ＜ 0.045.
Further, the step 6 high temperature Carburization Treatment includes the following steps：
S1：Protection alloy-layer obtained is cleaned with gasoline and removes surface contaminants, is dried after alcohol rinse；
S2：Protection alloy-layer after drying is packed into graphite boat, is filled up graphite powder, is gently compacted；
S3：Protection alloy-layer is fitted into special sintering carbide furnace, the carburizing 4h at 1250 DEG C；
S4：Then it comes out of the stove after cooling to guard metal layer less than 100 DEG C with the furnace.
Beneficial effects of the present invention：A kind of metal mill guide wheel based on carbide composite material, including mill guide wheel, lead
Defending the also cladding of guide wheel outer end has one layer of protection alloy-layer, and the present invention is by the component selection to mill guide wheel, and passes through to it
The processing of each step, can obtain that a kind of wear-resisting property is good, the strong metal mill guide wheel of high-temperature resistance, and pass through carbide
The selection of composite material, on the one hand so that the comprehensive performance of the present invention is good, another aspect selection is also simple, and cost will not be because of chasing after
It seeks performance and causes cost excessively high；Mill guide wheel in the present invention can to the greatest extent avoid when telling operating
It is damaged；The present invention is simple and effective, and is easy to practical.
Description of the drawings
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is metal mill guide wheel sectional view of the present invention.
Specific implementation mode
As shown in Figure 1, a kind of metal mill guide wheel based on carbide composite material, including mill guide wheel 1, the guide and guard
The also cladding of 1 outer end of guide wheel has one layer of protection alloy-layer 2, the mill guide wheel 1 and protection 2 clearance fit of alloy-layer；
The chemical composition and its mass percentage (%) of the mill guide wheel 1 be：C：1.65-1.83%, Cr：13.5-
16.3%, B：6.5-7.5%, Mo：1.33-1.57%, Mn：3.65-3.77%, Al：0.43-0.68%, RE：0.135-
0.146%, Mg：0.078-0.092%, V：0.223-0.310%, N：0.045-0.053%, Ti：0.33-0.45%, Co：
0.22~0.34%, Cu：0.25~0.36%, W：0.2~0.36%, Nb：0.065-0.120%, and 0.395%≤Ti+
Nb≤0.57%, Si ＜ 1.3%, S ＜ 0.032%, P ＜ 0.045%, surplus are Fe and ceramic powders.
The chemical composition and its mass percentage (%) of the mill guide wheel be：C：1.75 Cr：15.5 B：7.0, Mo：
1.45 Mn：3.70 Al：0.55, RE：0.140, Mg：0.088, V：0.25, N：0.05, Ti：0.42, Co：0.28, Cu：0.31,
W：0.32, Nb：0.088, Si ＜ 1.3, S ＜ 0.032, P ＜ 0.045, surplus are Fe and ceramic powders.
The Fe and ceramic powders mass percent are 10:1.5.
The mill guide wheel is prepared by following step：
Step 1 is put into the thawing of smelting furnace Hybrid Heating after the raw material stokehold adjusting component qualification of above-mentioned each quality point,
Liquid steel temperature is risen to 1600 DEG C again later, is come out of the stove after skimming；
V-N alloy breaks downs to the granularity that V content is 70-85wt%, leaded wastewater is 15-30wt% is 3-8mm by step 2
Fritter, it is tight to be less than 0.8mm steel discs package with thickness, tap 40-60% when, the V-N alloys wrapped are poured with molten steel
Casting ladle；
The fritter of magnesium-rare earth abrasive grain degree 0.01-0.5mm is placed in casting ladle by step 3 after 220 DEG C or less drying
Bottom carries out compound modification treatment with method is poured in packet to molten steel；
Step 4 pours into a mould the mill guide wheel of mill guide wheel, 1450 DEG C of pouring molten steel temperature；
Step 5 is heat-treated mill guide wheel, is processed the mill guide wheel after heat treatment to specified size；
The heat treatment process of mill guide wheel is：By as cast condition mill guide wheel after 880-920 DEG C of soft annealing 2-4h, it is furnace-cooled to
It is air-cooled when temperature is 500-550 DEG C, then carry out roughing；The mill guide wheel after roughing is heated to 980-1020 DEG C again,
After keeping the temperature 1-4h, cooling 0.5-2.0h, mass ratio >=10 of quenching oil and mill guide wheel in quenching oil of the temperature less than 60 DEG C：
1, finally heated to 180-220 DEG C, after keeping the temperature 3-6h, air cooling to room temperature is machined to predetermined size and precision.
It is described protection alloy-layer 2 chemical composition and its mass percentage (%) be：
22.4-33.5% tungsten, 0.75-1.45% carbon, 15.6-16.7% copper, 5.6-6.7% cobalts, surplus are iron；S ＜
0.032, P ＜ 0.045；
Step 1：By 5.6-8 microns of grain size, the tungsten powder that purity is 99.98% carries out reduction treatment under hydrogen environment, also
Former treatment temperature is 860 ± 10 DEG C, and keeps the temperature 1h；
Step 2：Simultaneously by 0.074 micron of grain size, the electrolytic copper powder that purity is 99.8% is also gone back under hydrogen environment
Original place is managed, and reduction treatment temperature is 300 ± 10 DEG C, and keeps the temperature 1h；
Step 3：The tungsten powder and copper powder in mass ratio 8 after reduction:2.5 uniformly mixing；
Step 4：Then the cobalt powder of 1.35% (mass fraction) is added as activator, dries after mixing；
Step 5：After the completion of dispensing, it is pressed to obtain protection alloy-layer 2 using tetra- column press of 50t；
Step 6：High-temperature carburizing processing is carried out to protection alloy-layer 2；
The step 6 high temperature Carburization Treatment includes the following steps：
S1：Protection alloy-layer obtained is cleaned with gasoline and removes surface contaminants, is dried after alcohol rinse；
S2：It is packed into graphite boat, fills up graphite powder, after being gently compacted；
S3：Protection alloy-layer is fitted into special sintering carbide furnace, the carburizing 4h at 1250 DEG C；
S4：Then it comes out of the stove after cooling to guard metal layer less than 100 DEG C with the furnace.
A kind of metal mill guide wheel based on carbide composite material, including mill guide wheel, the also cladding of mill guide wheel outer end
There are one layer of protection alloy-layer, the present invention to be selected by the component to mill guide wheel, and to its processing Jing Guo each step, energy
Access that a kind of wear-resisting property is good, the strong metal mill guide wheel of high-temperature resistance, and by the selection of carbide composite material, one
Aspect makes the comprehensive performance of the present invention good, and another aspect selection is also simple, and cost will not lead to cost because performance is pursued
It is excessively high；Mill guide wheel in the present invention can to the greatest extent avoid being damaged when telling operating；The present invention
It is simple and effective, and it is easy to practical.
Above content is only to structure of the invention example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or substitutes by a similar method, without departing from invention
Structure or beyond the scope defined by this claim, is within the scope of protection of the invention.
Claims (4)
1. a kind of metal guide and guard based on carbide composite material, including mill guide wheel (1), which is characterized in that the guide and guard are led
The also cladding of wheel (1) outer end has one layer of protection alloy-layer (2), the mill guide wheel (1) and protection alloy-layer (2) clearance fit；
Wherein, the chemical composition of protection alloy-layer (2) the protection alloy-layer 2 and its mass percentage (%) are：
22.4-33.5% tungsten, 0.75-1.45% carbon, 15.6-16.7% copper, 5.6-6.7% cobalts, surplus are iron；S ＜ 0.032, P
＜ 0.045；
The protection alloy-layer (2) is prepared by following step：
Step 1：By 5.6-8 microns of grain size, the tungsten powder that purity is 99.98% carries out also original place under certain temperature hydrogen environment
Reason, and keep the temperature 1h；
Step 2：Simultaneously by 0.074 micron of grain size, the electrolytic copper powder that purity is 99.8% is also under the hydrogen environment of certain temperature
Reduction treatment is carried out, and keeps the temperature 1h；
Step 3：The tungsten powder and copper powder in mass ratio 8 after reduction:2.5 uniformly mixing；
Step 4：Then the cobalt powder of 1.35% mass fraction is added as activator, dries after mixing；
Step 5：After the completion of dispensing, it is pressed to obtain protection alloy-layer (2) using tetra- column press of 50t；
Step 6：High-temperature carburizing processing is carried out to protection alloy-layer (2).
2. a kind of metal guide and guard based on carbide composite material according to claim 1, which is characterized in that the step
It it is 860 ± 10 DEG C to the reduction treatment temperature of tungsten powder in one；
It it is 300 ± 10 DEG C to the reduction treatment temperature of electrolytic copper powder in the step 2.
3. a kind of metal guide and guard based on carbide composite material according to claim 1, which is characterized in that the protection
Alloy-layer (2) protection alloy-layer 2 chemical composition and its mass percentage (%) be：
30% tungsten, 1.25% carbon, 16.5% bronze medal, 5.85% cobalt, surplus are iron；S ＜ 0.032, P ＜ 0.045.
4. a kind of metal guide and guard based on carbide composite material according to claim 1, which is characterized in that the step
Six high temperature Carburization Treatments include the following steps：
S1：Protection alloy-layer obtained is cleaned with gasoline and removes surface contaminants, is dried after alcohol rinse；
S2：Protection alloy-layer after drying is packed into graphite boat, is filled up graphite powder, is gently compacted；
S3：Protection alloy-layer is fitted into special sintering carbide furnace, the carburizing 4h at 1250 DEG C；
S4：Then it comes out of the stove after cooling to guard metal layer less than 100 DEG C with the furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810467794.0A CN108672507B (en) | 2018-05-14 | 2018-05-14 | Metal guide wheel based on carbide composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810467794.0A CN108672507B (en) | 2018-05-14 | 2018-05-14 | Metal guide wheel based on carbide composite material |
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| Publication Number | Publication Date |
|---|---|
| CN108672507A true CN108672507A (en) | 2018-10-19 |
| CN108672507B CN108672507B (en) | 2020-09-29 |
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ID=63805112
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11236684A (en) * | 1998-02-25 | 1999-08-31 | Natl Res Inst For Metals | Partial compounding method for metal |
| CN1931462A (en) * | 2006-10-18 | 2007-03-21 | 合肥工业大学 | Composite SiC and its making process |
| CN203284469U (en) * | 2013-04-25 | 2013-11-13 | 马鞍山市恒泰重工机械有限公司 | Composite coating sleeving roller |
| CN103820780A (en) * | 2012-11-16 | 2014-05-28 | 吴立松 | Preparation method of wear-resistant coating on surface of roller |
| CN105274517A (en) * | 2015-11-04 | 2016-01-27 | 内蒙古包钢钢联股份有限公司 | Method for prolonging service life of roller |
-
2018
- 2018-05-14 CN CN201810467794.0A patent/CN108672507B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11236684A (en) * | 1998-02-25 | 1999-08-31 | Natl Res Inst For Metals | Partial compounding method for metal |
| CN1931462A (en) * | 2006-10-18 | 2007-03-21 | 合肥工业大学 | Composite SiC and its making process |
| CN103820780A (en) * | 2012-11-16 | 2014-05-28 | 吴立松 | Preparation method of wear-resistant coating on surface of roller |
| CN203284469U (en) * | 2013-04-25 | 2013-11-13 | 马鞍山市恒泰重工机械有限公司 | Composite coating sleeving roller |
| CN105274517A (en) * | 2015-11-04 | 2016-01-27 | 内蒙古包钢钢联股份有限公司 | Method for prolonging service life of roller |
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| CN108672507B (en) | 2020-09-29 |
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