CN104498842A - Boron-antimony alloy roll material - Google Patents
Boron-antimony alloy roll material Download PDFInfo
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- CN104498842A CN104498842A CN201410830957.9A CN201410830957A CN104498842A CN 104498842 A CN104498842 A CN 104498842A CN 201410830957 A CN201410830957 A CN 201410830957A CN 104498842 A CN104498842 A CN 104498842A
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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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
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
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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
- C22C38/40—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
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
- 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
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Abstract
The invention discloses a boron-antimony alloy roll material and belongs to the field of roll materials. The boron-antimony alloy roll material is prepared from the following components in percentage by weight: 1.5-1.8 percent of C, 0.5-3 percent of Si, 0.2-1.6 percent of Mn, 0.6-0.8 percent of Al, 2-5 percent of Cr, 5-9 percent of Mo, 0.1-0.2 percent of S, 0.01-0.2 percent of B, 3-8 percent of Ni, 0.1-0.15 percent of Ti and the balance of Fe. According to the boron-antimony alloy roll material disclosed by the invention, boron and iron can form an iron and boron compound with high rigidity, so that improvement of the wear resistance of a roll is benefited; aluminum is a non-carbide and boride forming element, is mainly dissolved into a substrate to improve the high-temperature rigidity and the high-temperature wear resistance of the substrate, and is also good in high-temperature oxidation resistance, thus being beneficial to improving the processability of the as-cast roll, and the as-cast roll is not treated by annealing and is rapid in cutting machining, so that the roll can have the advantages of good wear resistance, good castability, good thermal fatigue property, long service life and low cost.
Description
Technical field
The present invention relates to roll material field, more particularly, relate to a kind of b-sb alloy roll material.
Background technology
Roll is the central module of wire rod machine, carries out gadolinium processing to gadolinium part, makes metal produce the main tool of viscous deformation.Roll working load is large, bears very large gadolinium pressing pressure and torsional moment, and has very strong shock load and very large mass force; In addition, the Working environment of roll is harsh, bear very high temperature, have water coolant again, is in the cold and hot lower work that accompanies each other, serious wear.Steel Roll has higher tensile strength and toughness, is widely used in rolling temperature is high, rolling loads is large bloomer or blooming mill, also can be used as supporting roll.Alloy cast steel roll, according to its chemical composition and thermal treatment process, can make the outer matrix of the body of roll be perlite and bainite.Perlite can be sheet or spherical, or sorbite type, and tempered sorbite not only has high obdurability, and there is good hot-cracking resistance, especially be with the tempered sorbite of position phase to organize and also have excellent wear resisting property concurrently, therefore during for blooming mill, effect of rolling is good.
High carbon and chromium cast steel, the several types such as ordinary steel and Wimet.High carbon and chromium cast steel is owing to there being certain wear resistance, and low price, is therefore widely used, and the material that high carbon and chromium running roller steel is conventional has 13Cr13WMoV and 18Cr20WMoV.Because these two kinds of steel hardness and wear resistance mainly rely on carbide Cr7C3 and Cr23C6 of chromium, thermostability is poor, generally more than 450 DEG C, starts agglomeration and softens gradually.550 DEG C time, hardness will be down to below HRC50.And the temperature of wire rod running roller under running can reach about 550 DEG C, this just makes running roller obviously reduce work-ing life.The secondary hardening temperature of ordinary steel is at about 550 DEG C, and hardness maintains HRC62 ~ 64, can improve the work-ing life of running roller significantly; Wimet also has good hot hardness and wear resistance.But because the manufacturing cost of ordinary steel and Wimet is too high, the use of high line running roller material is restricted.Therefore study excellent performance, the roll material that cost is cheaper just seems particularly important.
Common high carbon and vanadium high speed steel roll has excellent wear resistance, but there is the many and high deficiency of production cost of expensive alloying elements add-on, applies very difficult.Boron is a kind of alloying element of cheapness, adds high-speed steel roll, can partly replace the alloying elements such as vanadium, niobium, tungsten, molybdenum, reduces the cost of high carbon and vanadium high speed steel roll material.
There is the deficiencies such as hot hardness low and high temperature abrasion resistance difference in boron-containing high speed steel roller.Add hot hardness and high temperature abrasion resistance that aluminium can improve rapid steel.Chinese invention patent CN1218842 discloses a kind of high carbon high-speed steel, especially a kind of superhard aluminium-containing high speed steel simultaneously containing aluminium, rare earth element, titanium, boron.Its Chemical Composition is (% by weight): 0.90-1.35%C, 5.50-6.50%W, 4.50-5.50%Mo, 3.50-4.50%Cr, 1.65-2.20%V, 0.80-2.00%Al, 0.005-0.20%RE, 0.05-0.30%Ti, 0.001-0.05%B, Yu Weitie and impurity.
Chinese invention patent CN101426944 also discloses the rapid steel for saw blade, and the alloying element composition of existence is calculated in mass percent by forming as follows: the carbon of 0.5-1.5; The chromium of 1.0-1.0; The equivalent tungsten of 3.0-10.0, this equivalent tungsten is provided by 2Mo+W relational expression; The niobium of 0.5-2.0, niobium partly or entirely can substitute with the ratio of corresponding 2% niobium of every 1% vanadium with vanadium; The vanadium of 0.3-2.0, vanadium partly or entirely can substitute with the ratio of corresponding 2% niobium of every 1% vanadium with niobium; The silicon of 0.3-3.5, silicon can with aluminium with 1: 1 ratio partly or entirely substitute; Lower than the cobalt of 8; All the other are inevitable impurity in Fe and preparation process substantially.But above-mentioned materials is used as roll, and still to there is abrasion-resistive hard phase amount few, wears no resistance, castability difference and the deficiency such as thermal fatigue property is poor, cause roll working life to shorten.
Roll alloy material is made to have hardness containing antimony higher, wear resistance is good, resistant to elevated temperatures advantage, Chinese invention patent application numbers 201310699999.9, the applying date is on December 19th, 2013, publication date on April 23rd, 2014, disclose a kind of containing antimony roll alloy steel material and preparation method thereof, a kind of containing antimony roll alloy steel material, the chemical element composition that it contains and mass percent thereof are: carbon 0.8-0.9, tungsten 2.0-2.3, molybdenum 0.4-0.7, vanadium 1.5-2.5, chromium 3.8-4.2, niobium 0.05-0.10, lanthanum 0.05-0.10, cobalt 1.1-1.4, Ni1.0-1.5, antimony 0.07-0.09, P≤0.030, S≤0.030, surplus is iron.The present invention by adding the multiple alloying elements such as antimony, niobium, lanthanum on the basis of high carbon steel, reduce the content of molybdenum, chromium, and through secondary refining, conservative control casting postheat treatment temperature, throwing raw materials in batches, make steel alloy have the characteristic of rapid steel, high temperature resistant, red hard height, rigidity and toughness are worked good, and it is good to have surface abrasion resistance, resistance to flaking is good, cold shortness is low, and the low feature of cost, obtained roll working life is long.But it use multiple high cost material, and complicated technology makes, cost is high.
Summary of the invention
1. the technical problem that will solve
Wear no resistance for the existing roll existed in prior art, castability difference and the problem that thermal fatigue property is poor, the lost of life, cost are high, the invention provides a kind of b-sb alloy roll material.It is good that it has roll wear resistance, good casting property and the advantage that thermal fatigue property is good, the life-span is long, cost is low.
2. technical scheme
Object of the present invention is achieved through the following technical solutions.
A kind of b-sb alloy roll material, described mass ratio is as follows:
C 1.5%-1.8%
Si 0.5%-3%
Mn 0.2%-1.6%
Al 0.6%-0.8%
Cr 2%-5%
Mo 5%-9%
S 0.1%-0.2%
B 0.01%-0.2%
Ni 3%-8%
Ti 0.1%-0.15%
All the other are Fe.
Further, according to a kind of b-sb alloy roll material described above, its preferred mass ratio is as follows:
C 1.6%
Si 2%
Mn 0.5%
Al 0.6%
Cr 3%
Mo 7%
S 0.15%
B 0.08%
Ni 5%
Ti 0.1%
Fe 79.97%
Further, described b-sb alloy roll material also comprises the rare earth element of 0.005%.
3. beneficial effect
Compared to prior art, the invention has the advantages that:
(1) to a certain degree add B and Ti, B and iron form the FeB chemical compound of high rigidity, are conducive to improving roll wear resistance, and adding Ti can be high temperature resistant, and hardness is high, rigidity and toughness are worked good;
(2) wherein add Al and alloy to combine and can form certain protective membrane and prevent from being operationally corroded, steel alloy can be able to be made at high temperature to have good hardness and erosion resistance in the above-mentioned proportioning of employing;
(3) add a certain amount of rare earth in the material, to putting forward heavy alloyed over-all properties, to the expansion of fatigue cracking, make moderate progress, there is very long work-ing life and toughness;
(4) this roll material uses comparatively conventional or general material, obtain simple, cost is low, be applicable to scale operation, intensity is high, good toughness, hot-cracking resistance feature that is strong and strong shock resistance makes the work-ing life of alloy roller more traditional material improve at least 5 times, thus the production efficiency of production line is significantly improved;
(5) there is excellent high temperature abrasion resistance, for hot rolling wire rolling mill, the wear-resisting of roll material of the present invention improves 20-30% than common boron steel roll, and also has the high-speed steel roll of rare metal suitable, but not containing expensive alloy element such as cobalt, niobium, lanthanums, its production cost reduces by more than 40%.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
embodiment 1
A kind of b-sb alloy roll material, described mass ratio is as follows,
C 1.5%
Si 0.5%
Mn 0.2%
Al 0.6%
Cr 5%
Mo 5%
S 0.2%
B 0.2%
Ni 8%
Ti 0.1%
Fe 78.7%。
Boron: boron can form the FeB chemical compound of high rigidity with iron, is conducive to improving roll wear resistance, but add-on is too much, obviously increases the fragility of roll, therefore controls Boron contents at 0.01%-0.2%.
Aluminium: aluminium is non-carbide and boride forming element, mainly be dissolved in matrix, improve matrix hot hardness and high temperature abrasion resistance, aluminium also has adding of good oxidation-resistance property, particularly aluminium, promotes that the structural transformation of as cast condition roller substrate becomes perlite and ferrite, reduce cast iron roll in as-cast hardness, be conducive to the processing characteristics improving as cast condition roll, as cast condition roll, without anneal, can realize quick machining.But aluminium reduces roll through hardening performance, therefore controls aluminium content at 0.6%-0.8%.
Based on the preparation method of a kind of b-sb alloy roll material of above-mentioned formula, its step is as follows:
(A) take the material of above-mentioned mass ratio, first by Fe, Cr, Ti, Mn, Mo and Ni, the fusing of S Hybrid Heating, molten steel molten clear after, skim and desulfurization, deoxidation;
(B) then add C, B, Si and Ti, then liquid steel temperature is risen to 1605-1615 DEG C;
(C) then add Al alloying, come out of the stove after stokehold adjusting component is qualified, molten steel tapping temperature 1635-1650 DEG C;
(D) liquid steel temperature pours into roll when 1405-1430 DEG C;
(E) roll is after roughing, is heated to 1180-1210 DEG C, oil cooling after insulation 2h, and oil cooling is classification insulation, and oil cooling holding temperature is 250-300 DEG C;
(F) then 670-720 DEG C of tempering once, tempering insulation time is 6h; Make roll base.
Adding of aluminium element, cause retained austenite in quenching structure obviously to reduce, roll of the present invention in tempering once or tempering insulation time 6h, just can meet service requirements.
embodiment 2
A kind of b-sb alloy roll material, described mass ratio is as follows,
C 1.8%
Si 3%
Mn 1.6%
Al 0.8%
Cr 2%
Mo 9%
S 0.1%
B 0.01%
Ni 3%
Ti 0.15%
Rare earth element 0.005%
Fe 78.535%。
Based on the preparation method of a kind of b-sb alloy roll material of above-mentioned formula, its step is as follows:
(A) take the material of above-mentioned mass ratio, first by Fe, Cr, Ti, Mn, Mo and Ni, the fusing of S Hybrid Heating, molten steel molten clear after, skim and desulfurization, deoxidation;
(B) then add C, B, Si and Ti, then liquid steel temperature is risen to 1605-1615 DEG C;
(C) then add Al alloying, come out of the stove after stokehold adjusting component is qualified, molten steel tapping temperature 1635-1650 DEG C;
(D) liquid steel temperature pours into roll when 1405-1430 DEG C;
(E) roll is after roughing, is heated to 1180-1210 DEG C, air cooling after insulation 3h, and air cooling temperature is;
(F) then 670-720 DEG C of tempering once, tempering insulation time is 8h;
(G) double tempering, second time tempering temperature is 610-650 DEG C, and tempering time is 6h, makes roll base.
embodiment 3
A kind of b-sb alloy roll material, described mass ratio is as follows,
C 1.6%
Si 2%
Mn 0.5%
Al 0.6%
Cr 3%
Mo 7%
S 0.15%
B 0.08%
Ni 5%
Ti 0.1%
Fe 79.97%
Based on the preparation method of a kind of b-sb alloy roll material of above-mentioned formula, its step is as follows:
(A) take the material of above-mentioned mass ratio, first by Fe, Cr, Ti, Mn, Mo and Ni, the fusing of S Hybrid Heating, molten steel molten clear after, skim and desulfurization, deoxidation;
(B) then add C, B, Si and Ti, then liquid steel temperature is risen to 1605-1615 DEG C;
(C) then add Al alloying, come out of the stove after stokehold adjusting component is qualified, molten steel tapping temperature 1635-1650 DEG C;
(D) liquid steel temperature pours into roll when 1405-1430 DEG C;
(E) roll is after roughing, is heated to 1180-1210 DEG C, oil cooling after insulation 2h, and oil cooling is classification insulation, and oil cooling holding temperature is 250-300 DEG C;
(F) then 670-720 DEG C of tempering once, tempering insulation time is 7h; Make roll base.
Below be schematically described the invention and embodiment thereof, this description does not have restricted, and actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from this creation aim, designing the frame mode similar to this technical scheme and embodiment without creationary, the protection domain of this patent all should be belonged to.
Claims (3)
1. a b-sb alloy roll material, is characterized in that, described mass ratio is as follows,
C 1.5%-1.8%
Si 0.5%-3%
Mn 0.2%-1.6%
Al 0.6%-0.8%
Cr 2%-5%
Mo 5%-9%
S 0.1%-0.2%
B 0.01%-0.2%
Ni 3%-8%
Ti 0.1%-0.15%
All the other are Fe.
2. a kind of b-sb alloy roll material according to claim 2, its preferred mass ratio is as follows:
C 1.6%
Si 2%
Mn 0.5%
Al 0.6%
Cr 3%
Mo 7%
S 0.15%
B 0.08%
Ni 5%
Ti 0.1%
Fe 79.97%。
3. a kind of b-sb alloy roll material according to claim 1, is characterized in that: described b-sb alloy roll material also comprises the rare earth element of 0.005%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410830957.9A CN104498842A (en) | 2014-12-29 | 2014-12-29 | Boron-antimony alloy roll material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410830957.9A CN104498842A (en) | 2014-12-29 | 2014-12-29 | Boron-antimony alloy roll material |
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| CN104498842A true CN104498842A (en) | 2015-04-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282767A (en) * | 2016-08-23 | 2017-01-04 | 合肥东方节能科技股份有限公司 | Milling train deflector roll wear-resisting rare-earth alloy material and the heat treatment method of milling train deflector roll |
Citations (6)
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|---|---|---|---|---|
| JPS5773170A (en) * | 1980-10-24 | 1982-05-07 | Daido Steel Co Ltd | Tool steel |
| JPS61213348A (en) * | 1985-03-16 | 1986-09-22 | Daido Steel Co Ltd | Alloy tool steel |
| EP0475804A1 (en) * | 1990-08-29 | 1992-03-18 | Creusot-Loire Industrie | Process for manufacture of tool steel, in particular for moulds and steel produced by this method |
| JP2005002420A (en) * | 2003-06-12 | 2005-01-06 | Nippon Steel Corp | Steel having little alumina cluster, and its production method |
| CN101078090A (en) * | 2007-06-26 | 2007-11-28 | 郑州航空工业管理学院 | Low-alloy high speed steel roll material and preparation method thereof |
| CN103820732A (en) * | 2014-03-19 | 2014-05-28 | 江苏新亚特钢锻造有限公司 | Particle-reinforced chromium boron iron-based abrasion-resistant composite material for remanufacturing roller and preparation technology thereof |
-
2014
- 2014-12-29 CN CN201410830957.9A patent/CN104498842A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5773170A (en) * | 1980-10-24 | 1982-05-07 | Daido Steel Co Ltd | Tool steel |
| JPS61213348A (en) * | 1985-03-16 | 1986-09-22 | Daido Steel Co Ltd | Alloy tool steel |
| EP0475804A1 (en) * | 1990-08-29 | 1992-03-18 | Creusot-Loire Industrie | Process for manufacture of tool steel, in particular for moulds and steel produced by this method |
| EP0475804B1 (en) * | 1990-08-29 | 1996-01-03 | Creusot-Loire Industrie | Process for manufacture of tool steel, in particular for moulds and steel produced by this method |
| JP2005002420A (en) * | 2003-06-12 | 2005-01-06 | Nippon Steel Corp | Steel having little alumina cluster, and its production method |
| CN101078090A (en) * | 2007-06-26 | 2007-11-28 | 郑州航空工业管理学院 | Low-alloy high speed steel roll material and preparation method thereof |
| CN103820732A (en) * | 2014-03-19 | 2014-05-28 | 江苏新亚特钢锻造有限公司 | Particle-reinforced chromium boron iron-based abrasion-resistant composite material for remanufacturing roller and preparation technology thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282767A (en) * | 2016-08-23 | 2017-01-04 | 合肥东方节能科技股份有限公司 | Milling train deflector roll wear-resisting rare-earth alloy material and the heat treatment method of milling train deflector roll |
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Application publication date: 20150408 |