CN106086690A - A kind of high finishing mill alloy slitting wheel and Remanufacture technique thereof - Google Patents
A kind of high finishing mill alloy slitting wheel and Remanufacture technique thereof Download PDFInfo
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- CN106086690A CN106086690A CN201610674717.3A CN201610674717A CN106086690A CN 106086690 A CN106086690 A CN 106086690A CN 201610674717 A CN201610674717 A CN 201610674717A CN 106086690 A CN106086690 A CN 106086690A
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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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
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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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
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Abstract
The invention discloses a kind of high finishing mill alloy slitting wheel and Remanufacture technique thereof.Each component of this milling train slitting wheel composition by mass percentage is: C2.15%～2.40%, Al≤0.40%, Mn0.3%～0.5%, S≤0.030%, P≤0.030%, Cr8.00%～10.50%, Ti1.5%～1.8%, RE0.05%～0.12%, V0.15～0.30%, Mo0.40%～0.60%, Ni allows residual content≤0.25%, Cu allows residual content≤0.30%, and remaining is Fe.The present invention processes by slitting wheel has carried out the surface carburization of repeatability, and by gradient temperature control, the alloying element in steel is combined formation various alloy nitrides, particularly aluminium nitride, chromium nitride.These nitride have the highest hardness, heat stability and the highest spread, thus the steel part after nitriding can be made to obtain high case hardness, wearability, fatigue strength, seizure resistance, anti-air and superheated steam corrosive power, anti-temper softening ability, and reduce notch sensitivity.
Description
Technical field
The invention belongs to metal material and technical field of surface, particularly relate to a kind of high finishing mill alloy slitting wheel
And Remanufacture technique.
Background technology
Ferrous materials has the highest intensity and hardness, has good plasticity and processability simultaneously, and therefore, it is current
A kind of structural material that world's usage amount is maximum.But, ferrous materials is the most long-term in atmospheric environment to be used or places, all
Can gradually with surrounding medium generation chemical action or electrochemical action, cause the corrosion on surface.Slight corrosion can make surface lose
Removing metallic luster, reduce precision, time serious, surface produces rust hole, makes ferrous materials Mechanical Properties of Products deteriorate and even ruptures, shadow
Ring its service life.It is reported, in industrially developed country, the loss caused due to the corrosion of iron and steel every year accounts for national economy
The 1.5%～4.2% of total value；The economic development level different with various countries and corrosion control level and different.The whole world produces every year
Iron and steel have 10% to become rust, the steel equipment of 30% damages because of corrosion.
Summary of the invention
It is an object of the invention to provide a kind of high finishing mill alloy slitting wheel and Remanufacture technique thereof, pass through raw material
In carried out microalloy treatment and slitting wheel has carried out the surface carburization of repeatability and processed, improve the service life of slitting wheel.
For solving above-mentioned technical problem, the present invention is achieved by the following technical solutions:
The present invention is a kind of high finishing mill alloy slitting wheel, each component of this milling train slitting wheel composition by mass percentage
For C2.15%～2.40%, Al≤0.40%, Mn0.3%～0.5%, S≤0.030%, P≤0.030%, Cr8.00%～
10.50%, Ti1.5%～1.8%, RE0.05%～0.12%, V0.15～0.30%, Mo0.40%～0.60%, Ni allow
Residual content≤0.25%, Cu allows residual content≤0.30%, and remaining is Fe.
The Remanufacture technique of a kind of high finishing mill alloy slitting wheel is as follows:
Step one, smelts waste and old slitting wheel in inductive electromagnetic stove, adds the pig iron, steel scrap, aluminium, it is achieved at the beginning of component
Step saves and obtains following composition: C1.00%～1.20%, Al≤0.40%, Mn0.2%～0.4%, S≤0.045%, and P≤
0.045%, Cr≤10%, V≤0.15%, Mo≤0.30%, Ni allows residual content≤0.25%, Cu allow residual content≤
0.30%, remaining is Fe；
Step 2, the slitting wheel after step one being smelted, at ladle furnace refining, takes off S, de-O, de-P and addition in ladle furnace
Alloying element and rare earth element, trimming, obtain following composition: C2.15%～2.40%, Al≤0.40%, Mn0.3%～
0.5%, S≤0.030%, P≤0.030%, Cr8.00%～10.50%, Ti1.5%～1.8%, RE0.05%～
0.12%, V0.15～0.30%, Mo0.40%～0.60%, Ni allow residual content≤0.25%, Cu allow residual content≤
0.30%, remaining is Fe；
Step 3, carries out VD/RH vacuum outgas by the slitting wheel after step 2 refine, in VD/RH stove vacuum outgas and
Trimming, obtains following composition: C2.15%～2.40%, Al≤0.40%, Mn0.3%～0.5%, S≤0.030%, P
≤ 0.030%, Cr8.00%～10.50%, Ti1.5%～1.8%, RE0.05%～0.12%, V0.15～0.30%,
Mo0.40%～0.60%, Ni allow residual content≤0.25%, and Cu allows residual content≤0.30%, and remaining is Fe；
Step 4, makes slitting wheel model with low-temperature wax basic mode material, by silica-water glass composite shell process for making shell system
Obtain slitting wheel model shell, in Ludox-waterglass composite model shell preparation process, slitting wheel model is first smeared 2-
4 layers of Ludox, after being coated with 3-5 layer waterglass steam dewaxing, obtain slitting wheel model shell；
Step 5, roasting slitting wheel model shell, sintering temperature is 1650-1700 DEG C, and temperature retention time is 40 minutes, roasting
After end, pouring into a mould in pouring the compound that step 3 is prepared into slitting wheel model shell, the tapping temperature of molten iron is 1700
～1820 DEG C, pouring temperature is 1630～1640 DEG C, and slitting wheel model shell temperature is 450～550 DEG C, after cast, will make
Slitting wheel naturally cool to room temperature, obtain slitting wheel after removing running gate system；
Step 6, obtains slitting wheel by step 5 cast and carries out surface carburization, and nitriding temperature, will between 550～700 DEG C
Slitting wheel is heated to 750～850 DEG C, is incubated 0.5～3 hour, repeats 1-5 time after being cooled to nitriding temperature.
Further, slitting wheel carries out in surface carburization by described step 6, nitriding temperature 550～700 DEG C it
Between, slitting wheel is heated to 750～850 DEG C, is incubated 0.5～3 hour after being cooled to nitriding temperature, repeats 1-5 time, often repeat one
Secondary, slitting wheel heating-up temperature increases 50-100 DEG C.
The method have the advantages that
1, microalloy treatment has been carried out during the slitting wheel of the present invention carries out raw material, owing to alloying element tungsten has high-strength
The features such as degree, high rigidity, high-wearing feature and high-melting-point, and its elevated temperature strength is good, because the titanium added can form carbide with carbon, and
Carbide has high hardness, wearability and slightly solubility, therefore, in order to improve wearability and the corrosion resistance of slitting wheel, improves knot
Structure intensity.
2, the slitting wheel of the present invention of the present invention has carried out the surface carburization process of repeatability, by gradient temperature control,
Alloying element in steel is combined formation various alloy nitrides, particularly aluminium nitride, chromium nitride.These nitride have the highest
Hardness, heat stability and the highest spread, thus the steel part after nitriding can be made to obtain high case hardness, wearability, tired
Labor intensity, seizure resistance, anti-air and superheated steam corrosive power, anti-temper softening ability, and reduce notch sensitivity.
Certainly, the arbitrary product implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based in the present invention
Embodiment, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of protection of the invention.
A kind of high finishing mill alloy slitting wheel, each component of this milling train slitting wheel composition by mass percentage is:
C2.15%～2.40%, Al≤0.40%, Mn0.3%～0.5%, S≤0.030%, P≤0.030%, Cr8.00%～
10.50%, Ti1.5%～1.8%, RE0.05%～0.12%, V0.15～0.30%, Mo0.40%～0.60%, Ni allow
Residual content≤0.25%, Cu allows residual content≤0.30%, and remaining is Fe.
The Remanufacture technique of a kind of high finishing mill alloy slitting wheel is as follows:
Step one, smelts waste and old slitting wheel in inductive electromagnetic stove, adds the pig iron, steel scrap, aluminium, it is achieved at the beginning of component
Step saves and obtains following composition: C1.00%～1.20%, Al≤0.40%, Mn0.2%～0.4%, S≤0.045%, and P≤
0.045%, Cr≤10%, V≤0.15%, Mo≤0.30%, Ni allows residual content≤0.25%, Cu allow residual content≤
0.30%, remaining is Fe；
Step 2, the slitting wheel after step one being smelted, at ladle furnace refining, takes off S, de-O, de-P and addition in ladle furnace
Alloying element and rare earth element, trimming, obtain following composition: C2.15%～2.40%, Al≤0.40%, Mn0.3%～
0.5%, S≤0.030%, P≤0.030%, Cr8.00%～10.50%, Ti1.5%～1.8%, RE0.05%～
0.12%, V0.15～0.30%, Mo0.40%～0.60%, Ni allow residual content≤0.25%, Cu allow residual content≤
0.30%, remaining is Fe；
Step 3, carries out VD/RH vacuum outgas by the slitting wheel after step 2 refine, in VD/RH stove vacuum outgas and
Trimming, obtains following composition: C2.15%～2.40%, Al≤0.40%, Mn0.3%～0.5%, S≤0.030%, P
≤ 0.030%, Cr8.00%～10.50%, Ti1.5%～1.8%, RE0.05%～0.12%, V0.15～0.30%,
Mo0.40%～0.60%, Ni allow residual content≤0.25%, and Cu allows residual content≤0.30%, and remaining is Fe；
Step 4, makes slitting wheel model with low-temperature wax basic mode material, by silica-water glass composite shell process for making shell system
Obtain slitting wheel model shell, in Ludox-waterglass composite model shell preparation process, slitting wheel model is first smeared 2-
4 layers of Ludox, after being coated with 3-5 layer waterglass steam dewaxing, obtain slitting wheel model shell；
Step 5, roasting slitting wheel model shell, sintering temperature is 1650-1700 DEG C, and temperature retention time is 40 minutes, roasting
After end, pouring into a mould in pouring the compound that step 3 is prepared into slitting wheel model shell, the tapping temperature of molten iron is 1700
～1820 DEG C, pouring temperature is 1630～1640 DEG C, and slitting wheel model shell temperature is 450～550 DEG C, after cast, will make
Slitting wheel naturally cool to room temperature, obtain slitting wheel after removing running gate system；
Step 6, obtains slitting wheel by step 5 cast and carries out surface carburization, and nitriding temperature, will between 550～700 DEG C
Slitting wheel is heated to 750～850 DEG C, is incubated 1 hour, repeats 1-5 time after being cooled to nitriding temperature.
Wherein, carrying out in surface carburization to slitting wheel in step 6, nitriding temperature is between 550～700 DEG C, by cutting
Wheel is heated to 750～850 DEG C, is incubated 0.5～3 hour, is repeated 5 times, is often repeated once after being cooled to nitriding temperature, and slitting wheel adds
Hot temperature increases by 60 DEG C.
In the description of this specification, the description of reference term " embodiment ", " example ", " concrete example " etc. means
Specific features, structure, material or feature in conjunction with this embodiment or example description is contained at least one enforcement of the present invention
In example or example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or example.
And, the specific features of description, structure, material or feature can be to close in any one or more embodiments or example
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.Preferred embodiment is the most detailed
Describe all of details, be also not intended to the detailed description of the invention that this invention is only described.Obviously, according to the content of this specification,
Can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is to preferably explain the present invention
Principle and actual application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and four corner thereof and equivalent.
Claims (3)
1. one kind high finishing mill alloy slitting wheel, it is characterised in that each component of this milling train slitting wheel structure by mass percentage
Become: C2.15%～2.40%, Al≤0.40%, Mn0.3%～0.5%, S≤0.030%, P≤0.030%, Cr8.00%
～10.50%, Ti1.5%～1.8%, RE0.05%～0.12%, V0.15～0.30%, Mo0.40%～0.60%, Ni permits
Being permitted residual content≤0.25%, Cu allows residual content≤0.30%, and remaining is Fe.
The Remanufacture technique of a kind of high finishing mill alloy slitting wheel the most as claimed in claim 1 is as follows:
Step one, smelts waste and old slitting wheel in inductive electromagnetic stove, adds the pig iron, steel scrap, aluminium, it is achieved component just step
Save and obtain following composition: C1.00%～1.20%, Al≤0.40%, Mn0.2%～0.4%, S≤0.045%, P≤
0.045%, Cr≤10%, V≤0.15%, Mo≤0.30%, Ni allows residual content≤0.25%, Cu allow residual content≤
0.30%, remaining is Fe；
Step 2, the slitting wheel after step one being smelted, at ladle furnace refining, takes off S, de-O, de-P in ladle furnace and adds alloy
Element and rare earth element, trimming, obtain following composition: C2.15%～2.40%, Al≤0.40%, Mn0.3%～
0.5%, S≤0.030%, P≤0.030%, Cr8.00%～10.50%, Ti1.5%～1.8%, RE0.05%～
0.12%, V0.15～0.30%, Mo0.40%～0.60%, Ni allow residual content≤0.25%, Cu allow residual content≤
0.30%, remaining is Fe；
Step 3, carries out VD/RH vacuum outgas by the slitting wheel after step 2 refine, vacuum outgas and composition in VD/RH stove
Fine setting, obtains following composition: C2.15%～2.40%, Al≤0.40%, Mn0.3%～0.5%, S≤0.030%, and P≤
0.030%, Cr8.00%～10.50%, Ti1.5%～1.8%, RE0.05%～0.12%, V0.15～0.30%,
Mo0.40%～0.60%, Ni allow residual content≤0.25%, and Cu allows residual content≤0.30%, and remaining is Fe；
Step 4, makes slitting wheel model with low-temperature wax basic mode material, prepares with silica-water glass composite shell process for making shell and cuts
Minute wheel model shell, in Ludox-waterglass composite model shell preparation process, first smears layer 2-4 on slitting wheel model
Ludox, after being coated with 3-5 layer waterglass steam dewaxing, obtains slitting wheel model shell；
Step 5, roasting slitting wheel model shell, sintering temperature is 1650-1700 DEG C, and temperature retention time is 40 minutes, and roasting terminates
After, by step 3 prepare compound pour slitting wheel model shell in pour into a mould, the tapping temperature of molten iron be 1700～
1820 DEG C, pouring temperature is 1630～1640 DEG C, and slitting wheel model shell temperature is 450～550 DEG C, after cast, by make
Slitting wheel naturally cools to room temperature, obtains slitting wheel after removing running gate system；
Step 6, obtains slitting wheel by step 5 cast and carries out surface carburization, and nitriding temperature is between 550～700 DEG C, by cutting
Wheel is heated to 750～850 DEG C, is incubated 0.5～3 hour, repeats 1-5 time after being cooled to nitriding temperature.
The Remanufacture technique of a kind of high finishing mill alloy slitting wheel the most according to claim 2, it is characterised in that described
Slitting wheel carries out in surface carburization by step 6, nitriding temperature between 550～700 DEG C, slitting wheel is heated to 750～
850 DEG C, being incubated 0.5～3 hour, repeat 1-5 time, be often repeated once after being cooled to nitriding temperature, slitting wheel heating-up temperature increases
50-100℃。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674717.3A CN106086690B (en) | 2016-08-16 | 2016-08-16 | A kind of high finishing mill alloy slitting wheel and its Remanufacture technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674717.3A CN106086690B (en) | 2016-08-16 | 2016-08-16 | A kind of high finishing mill alloy slitting wheel and its Remanufacture technique |
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| CN106086690A true CN106086690A (en) | 2016-11-09 |
| CN106086690B CN106086690B (en) | 2018-02-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108546869A (en) * | 2018-05-14 | 2018-09-18 | 合肥东方节能科技股份有限公司 | A kind of energetic ion slitting wheel alloy material |
| CN108950373A (en) * | 2018-08-13 | 2018-12-07 | 林州凤宝管业有限公司 | A kind of high finishing mill alloy slitting wheel and its Remanufacture technique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532131A (en) * | 2014-12-15 | 2015-04-22 | 合肥东方节能科技股份有限公司 | Method for prolonging service life of slitting wheel of rolling mill |
| CN104789873A (en) * | 2015-04-24 | 2015-07-22 | 合肥东方节能科技股份有限公司 | Rolling mill segmentation wheel and regeneration manufacturing process thereof |
-
2016
- 2016-08-16 CN CN201610674717.3A patent/CN106086690B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532131A (en) * | 2014-12-15 | 2015-04-22 | 合肥东方节能科技股份有限公司 | Method for prolonging service life of slitting wheel of rolling mill |
| CN104789873A (en) * | 2015-04-24 | 2015-07-22 | 合肥东方节能科技股份有限公司 | Rolling mill segmentation wheel and regeneration manufacturing process thereof |
Non-Patent Citations (1)
| Title |
|---|
| 马伯龙等: "《热处理技术图解手册》", 30 June 2015 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108546869A (en) * | 2018-05-14 | 2018-09-18 | 合肥东方节能科技股份有限公司 | A kind of energetic ion slitting wheel alloy material |
| CN108950373A (en) * | 2018-08-13 | 2018-12-07 | 林州凤宝管业有限公司 | A kind of high finishing mill alloy slitting wheel and its Remanufacture technique |
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| CN106086690B (en) | 2018-02-09 |
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