CN103045963A - Low-chromium and high-silicon wear-resistant vanadium-nitrogen-boron reinforced steel belt for kitchen cutter - Google Patents
Low-chromium and high-silicon wear-resistant vanadium-nitrogen-boron reinforced steel belt for kitchen cutter Download PDFInfo
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- CN103045963A CN103045963A CN2013100016594A CN201310001659A CN103045963A CN 103045963 A CN103045963 A CN 103045963A CN 2013100016594 A CN2013100016594 A CN 2013100016594A CN 201310001659 A CN201310001659 A CN 201310001659A CN 103045963 A CN103045963 A CN 103045963A
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Abstract
The invention discloses a low-chromium and high-silicon wear-resistant vanadium-nitrogen-boron reinforced steel belt for a kitchen cutter. The low-chromium and high-silicon wear-resistant vanadium-nitrogen-boron reinforced steel belt is characterized in that the low-chromium and high-silicon wear-resistant vanadium-nitrogen-boron reinforced steel belt comprises the specific components by weight percentage: 0.50-0.60% of C, 0.3-0.7% of Mn, 2.5-3.5% of Si, less than or equal to 0.010% of P, less than or equal to 0.010% of S, 9.00-10.00% of Cr, less than or equal to 0.6% of Ni, 0.16-0.32% of V, 0.04-0.08% of N, 0.0008-0.002% of B and the balance of Fe. According to the low-chromium and high-silicon wear-resistant vanadium-nitrogen-boron reinforced steel belt for the kitchen cutter, the matrix strength is high; a cutting edge of the cutter has good sharpness, wear resistance and corrosion resistance; and the production cost is low. The low-chromium high-silicon wear-resistant vanadium-nitrogen-boron reinforced steel belt is mainly used for the kitchen cutter and can also be used for the production of shears.
Description
Technical field
The present invention relates to the improvement of steel of a kind of knife for kitchen, a kind of employing vanadium nitrogen boron complex alloy refined crystalline strengthening specifically, replace the Martensite Stainless Steels such as 30Cr13,40Cr13, make simultaneously the cutter of production have the multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of low chromium of good repetition reconditioning and cutting edge sharpness.
Background technology
In China, the kitchen five metals has experienced two kinds of different developmental stage with the technical development of cutter, and the fs is mainly the carbon steel cutter, and the cutting edge material is 45#, 55#, 65Mn typical case material; Subordinate phase is mainly stainless steel knife, mainly take 20Cr13,30Cr13 as the initial application material, in order to improve wear resistance, take to carry high carbon chromium content and add Mo, V alloy in the selection of material, thus 50Cr15MoV, 60Cr13Mo, the 90Cr18Mo etc. that develop into 40Cr13,50Cr13,60Cr13,70Cr13,80Cr18,90Cr18 and add the Mo material.The advantage that the stainless steel knife material adds Mo, V is the temper brittleness that can improve in its wear resistance and the elimination material heat treatment process.But also Shortcomings part is after adding Mo, because the price of Mo is higher, so increased the cost of stainless steel knife material.Mostly adopt at present raising chromium content and carbon content and adding niobium, tungsten, aluminium, titanium, nitrogen, silicon to improve hardness on the Composition Design of kitchen knife material; Add special elements copper and silver and play antibiotic purpose; Add molybdenum, vanadium, titanium etc. and reduce temper brittleness, realize improving the sharpness of tool matrix intensity and cutting edge roundness, its HRC hardness is between 48-60; Consider to improve hardness owing to simple, do not consider the cutter regrinding, cause being difficult to the sharp of repetition grinding maintenance blade after the cutter use, affected cutting-tool's used life; The Martensite Stainless Steel preliminary grinding is better, and is relatively poor in the repetition reconditioning of actual use procedure, and namely blade cutting edge sharpness and wear resistance reduce.Along with the requirement of social development, the development regrinding is good, the cutter sharpness is high, the economy material becomes inevitable.
Summary of the invention
The object of the present invention is to provide a kind of employing vanadium nitrogen boron complex alloy grain refining, further improve carbon content and silicone content improving fundamental strength, and make the cutter of making have the multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of low chromium of good repetition reconditioning and cutting edge sharpness.
In order to reach above purpose, the technical solution adopted in the present invention is: the multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of this low chromium is characterized in that: the concrete composition that it is contained, calculate by weight percentage, for:
C 0.50-0.60%; Mn 0.3-0.7%; Si 2.5-3.5%; P≤0.010%; S≤0.010%; Cr 9.00-10.00%; Ni≤0.6%; V 0.16-0.32%; N 0.04-0.08%; B 0.0008-0.002%; Surplus is Fe.
The present invention also implements by following measure: described V:N is controlled between the 4.0-4.5, with the form adding of alloy of vanadium nitride.
Described B is with the form feeding of ferro-boron line.
The multielement enhanced wear-resisting knife for kitchen of the high silicon-vanadium-nitrogen boron of described low chromium is 1020-1520mm with the width of steel band.
The multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of above-mentioned low chromium, its production method, comprise that intermediate frequency furnace, electrosmelting, stainless steel refining, continuous casting steel billet heat are sent, stove volume hot-rolled process, add in the ladle behind the intermediate frequency furnace fusing ferrochrome before the electrosmelting, add the molten iron of electric furnace through desulfurization and converter dephosphorization, desulfurizing iron S≤0.005; Adopt dephosphorization converter dephosphorization P≤0.015 after the desulfurization; The molten iron of desulfurization and dephosphorization is added the eccentric furnace bottom electric furnace that is equipped with furnace door oxygen lance and bottom blowing, take to spray carbon dust making foamed slag adding lime and make slag basicity 3.5-4.2 dephosphorization, after 2-3 deslagging, reach P≤below 0.003, molten steel is added the pre-melt that forms refining in the ladle with intermediate frequency furnace fusing ferrochrome after complete; The pre-melt that ladle is molten after converting added in the GOR refining furnace (refining furnace that only has bottom blowing) carry out refining, the refining reduction stage adds the low-carbon ferrosilicon of alloying, change the refining of LF stove over to, in the LF stove, add VN alloy and carry out microalloying, melting terminal point feeding ferro-boron line; Adopt continuous cast method to produce slab, by induction stirring, make the proportion of equiaxed grain in the slab reach 45-48%; Continuous casting steel billet adopts heat to send the mode direct heating; Heating temperature is 1200-1250 ℃, heat tracing time 200-260min, start rolling temperature 1100-1180 ℃, the large passage distortion of roughing adopts Steckel mill rolling, 950-980 ℃ of finish rolling start rolling temperature, Heating temperature 1020-1100 ℃ is reduced the rolling deformation drag in the stove volume, adopts steckel rolling to 7 passage final thickness, hot rolling finishing temperature 860-900 ℃, the curling rear employing cooling in heap that rolls off the production line is slowly cooling to the temper brittleness that adopts air-cooled reduction slab material after 500 ℃.Hot rolled strip so far, namely makes the multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of above-mentioned low chromium through the thermal treatment of 850-880 ℃ of * 4-8h.
The multielement enhanced wear-resisting knife for kitchen of the high silicon-vanadium-nitrogen boron of described low chromium is 1020-1520mm with the width of steel band.
The multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of above-mentioned low chromium, the cutter of production, through detecting, its hardness has reached 61-63, and hardness has surpassed present all cutter steel grades at 59-62 after the repetition reconditioning.Be that 22 test cotton can be cut more than 600 times continuously through cutting the number of plies, be higher than 300-400 time of 40Cr13; Adopt the reconditioning of safflower stone to be easier to, repeating reconditioning is that 22 test cotton can be cut more than 500 times continuously by cutting the number of plies.
After utilizing this Cutter steel-tape to make scissors, be used for shearing stainless steel metal wire establishment product, once can shear 20-30kg, adopt the reconditioning of safflower stone to be easier to, regrinding is good.
The cutter integral hardness that this steel band is made is high, repeat reconditioning performance theoretical foundation good and that solidity to corrosion is good is: by change chromium and carbon content with the carbide of separating out by M
23C
6Or Cr
23C
6Form is converted into M
7C
3Or Cr
7C
3Form, M
7C
3Or Cr
7C
3Be more conducive to dissolve in and strengthen matrix in the matrix; Further improve silicone content, can improve the hardness of matrix and the difference of hardness between intensity, minimizing matrix and the carbide, thereby improve the cutter integral hardness and repeat reconditioning; Calculate according to chromium equivalent, Cr equivalent=Cr+1.5*Si is controlled between the 12.75-14.5, can have preferably solidity to corrosion; Add vanadium and nitrogen, adopt the ferrovanadium nitride form to add, adding vanadium nitride is the grain fineness number of molecule refinement strand, reduces the component segregation of strand, reduces the banded structure to 1 grade of steel band, has reduced the segregation of high nitrogen-containing condition.
Beneficial effect of the present invention is: compare with the steel that present knife for kitchen is used, matrix strength is high, tartness degree of tool cutting edge and wear resistance, corrosion resisting property are good, and production cost is low.Be mainly used in knife for kitchen, also can be used for the production of scissors.
Embodiment
Embodiment 1
Should hang down the multielement enhanced wear-resisting knife for kitchen of the high silicon-vanadium-nitrogen boron of chromium with the contained concrete composition of steel band, calculate by weight percentage, for:
C 0.58%; Mn 0.47%; Si 2.78%; P 0.009%; S 0.004%; Cr 9.56%; Ni 0.16%; V 0.22%; N 0.05; B 0.0016; Surplus is Fe.
Described V:N is between 4.4, with the form adding of alloy of vanadium nitride.
The multielement enhanced wear-resisting knife for kitchen of the high silicon-vanadium-nitrogen boron of described low chromium is 1250mm with the width of steel band.
The multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of above-mentioned low chromium, its production method, comprise the operations such as intermediate frequency furnace, electrosmelting, stainless steel refining, continuous casting steel billet heat are sent, the hot rolling of stove volume, add in the ladle behind 10.5 tons of ferrochrome of intermediate frequency furnace fusing before the electrosmelting, add the molten iron of electric furnace through desulfurization and converter dephosphorization, desulfurizing iron S 0.003 adopts dephosphorization converter dephosphorization P0.014 after the desulfurization; 59.5 tons of molten iron of desulfurization and dephosphorization are added the eccentric furnace bottom electric furnace that is equipped with furnace door oxygen lance and bottom blowing, employing is taked to spray carbon dust making foamed slag adding lime and is made slag basicity 3.5 dephosphorizations, reach P≤below 0.003, molten steel is added in the ladle 65 tons of pre-melts that form refining with intermediate frequency furnace fusing ferrochrome; The pre-melt that ladle is molten after converting added in the GOR refining furnace (refining furnace that only has bottom blowing) carry out refining, 2.37 tons of the low-carbon ferrosilicons of refining reduction stage adding alloying, change the refining of LF stove over to and weigh 64.8 tons altogether, in the LF stove, add alloy of vanadium nitride 285kg and carry out microalloying, melting terminal point feeding ferro-boron line 60m; Adopt continuous cast method to produce slab 200*1250mm, by induction stirring, make the proportion of equiaxed grain in the slab reach 46.8%; Continuous casting steel billet adopts heat to send the mode direct heating; Heating temperature is 1240 ℃, heat tracing time 240min, 1160 ℃ of start rolling temperatures, 970 ℃ of the rolling finish rolling start rolling temperatures of Steckel mill are adopted in the large passage distortion of roughing, 1080 ℃ of reductions of Heating temperature rolling deformation drag in the stove volume, adopt the rolling 3.5mm size of steckel rolling to 7 passage, 887 ℃ of hot rolling finishing temperatures, the curling rear employing cooling in heap that rolls off the production line is chilled to room temperature behind the air-cooled 18h of employing after slowly cooling to 500 ℃.Hot rolled strip so far, namely makes the multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of above-mentioned low chromium through the thermal treatment of 880-880 ℃ of * 8h.
The cutter that adopts the multielement enhanced wear-resisting knife for kitchen of the high silicon-vanadium-nitrogen boron of this low chromium to produce with steel band, through detecting, hardness is 63, regrinding reaches 4 times, the 4th hardness reaches 61, still can cut the denim of 9 bed thickness, shears smoothly diameter 0.1mm stainless steel establishment product 10kg.
Embodiment 2
Should hang down the multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of chromium, contained concrete composition is calculated by weight percentage, for:
C 0.55%; Mn 0.42%; Si 2.89%; P 0.008%; S 0.003%; Cr 9.76%; Ni 0.20%; V 0.29%; N 0.068%; B 0.0014%; Surplus is Fe.
V:N=4.3 wherein adds with the form of alloy of vanadium nitride.
The multielement enhanced wear-resisting knife for kitchen of the high silicon-vanadium-nitrogen boron of described low chromium is 1320mm with the width of steel band.
Production method is with embodiment 1.Wherein add in the ladle behind 10.89 tons of ferrochrome of intermediate frequency furnace fusing before the electrosmelting, add the molten iron of electric furnace through desulfurization and converter dephosphorization, desulfurizing iron S 0.003 adopts dephosphorization converter dephosphorization P 0.012 after the desulfurization; 58.8 tons of molten iron of desulfurization and dephosphorization are added the eccentric furnace bottom electric furnace that is equipped with furnace door oxygen lance and bottom blowing, take to spray carbon dust making foamed slag adding lime and make slag basicity 3.82 dephosphorizations, reach P 0.002, molten steel is added in the ladle 65.1 tons of pre-melts that form refining with intermediate frequency furnace fusing ferrochrome; The pre-melt that ladle is molten after converting added in the GOR refining furnace (refining furnace that only has bottom blowing) carry out refining, 2.87 tons of the low-carbon ferrosilicons of refining reduction stage adding alloying, change the refining of LF stove over to and weigh 65.1 tons altogether, in the LF stove, add alloy of vanadium nitride 325kg and carry out microalloying, melting terminal point feeding ferro-boron line 60m; Adopt continuous cast method to produce slab 200*1320mm, by induction stirring, make the proportion of equiaxed grain in the slab reach 45.9%; Continuous casting steel billet adopts heat to send the mode direct heating; Heating temperature is 1230 ℃, heat tracing time 260min, 1140 ℃ of start rolling temperatures, 970 ℃ of the rolling finish rolling start rolling temperatures of Steckel mill are adopted in the large passage distortion of roughing, 1080 ℃ of reductions of Heating temperature rolling deformation drag in the stove volume, adopt the rolling 2.75mm size of steckel rolling to 7 passage, 892 ℃ of hot rolling finishing temperatures, the curling rear employing cooling in heap that rolls off the production line is chilled to room temperature behind the air-cooled 22h of employing after slowly cooling to 500 ℃.Hot rolled strip so far, namely makes the multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of above-mentioned low chromium through the thermal treatment of 860 ℃ of * 6h.
The cutter that adopts the multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of this low chromium to produce, through detecting, hardness is 63, regrinding reaches 5 times, the 5th hardness reaches 60, still can cut the denim of 9 bed thickness, shears smoothly diameter 0.1mm stainless steel establishment product 12kg.
Claims (3)
1. hang down the multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of chromium, it is characterized in that: the concrete composition that it is contained, calculate by weight percentage, for:
C:0.50-0.60%; Mn:0.3-0.7%; Si:2.5-3.5%; P≤0.010%; S≤0.010%; Cr:9.00-10.00%; Ni≤0.6%; V:0.16-0.32%; N:0.04-0.08%; B:0.0008-0.002%; Surplus is Fe.
2. the multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of low chromium according to claim 1, it is characterized in that: described V:N is controlled between the 4.0-4.5, adds with the form of alloy of vanadium nitride.
3. the multielement enhanced wear-resisting knife for kitchen steel band of the high silicon-vanadium-nitrogen boron of low chromium according to claim 1, it is characterized in that: the multielement enhanced wear-resisting knife for kitchen of the high silicon-vanadium-nitrogen boron of described low chromium is 1020-1520mm with the width of steel band.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310001659.4A CN103045963B (en) | 2013-01-05 | 2013-01-05 | Low-chromium and high-silicon wear-resistant vanadium-nitrogen-boron reinforced steel belt for kitchen cutter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310001659.4A CN103045963B (en) | 2013-01-05 | 2013-01-05 | Low-chromium and high-silicon wear-resistant vanadium-nitrogen-boron reinforced steel belt for kitchen cutter |
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| CN103045963A true CN103045963A (en) | 2013-04-17 |
| CN103045963B CN103045963B (en) | 2014-09-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104651804A (en) * | 2014-11-21 | 2015-05-27 | 华东交通大学 | Method for chemical vapor depositing of vanadium nitride coating on cutter surface |
| CN115449717A (en) * | 2022-08-10 | 2022-12-09 | 山东泰山钢铁集团有限公司 | Tough and durable wear-resistant cutter steel and preparation method of wide coiled plate thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11343540A (en) * | 1998-06-01 | 1999-12-14 | Nisshin Steel Co Ltd | Martensitic stainless steel excellent in antibacterial property |
| CN1771345A (en) * | 2003-02-07 | 2006-05-10 | 先进钢铁技术有限责任公司 | Fine-grained martensitic stainless steel and method thereof |
-
2013
- 2013-01-05 CN CN201310001659.4A patent/CN103045963B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11343540A (en) * | 1998-06-01 | 1999-12-14 | Nisshin Steel Co Ltd | Martensitic stainless steel excellent in antibacterial property |
| CN1771345A (en) * | 2003-02-07 | 2006-05-10 | 先进钢铁技术有限责任公司 | Fine-grained martensitic stainless steel and method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李远睿 等: "锋利度持久刀剪用4Cr10Si2马氏体不锈钢的研制", 《重庆大学学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104651804A (en) * | 2014-11-21 | 2015-05-27 | 华东交通大学 | Method for chemical vapor depositing of vanadium nitride coating on cutter surface |
| CN104651804B (en) * | 2014-11-21 | 2017-08-11 | 华东交通大学 | A kind of method of tool surface chemical vapor deposition vanadium nitride coating |
| CN115449717A (en) * | 2022-08-10 | 2022-12-09 | 山东泰山钢铁集团有限公司 | Tough and durable wear-resistant cutter steel and preparation method of wide coiled plate thereof |
| CN115449717B (en) * | 2022-08-10 | 2023-11-03 | 山东泰山钢铁集团有限公司 | Strong and durable wear-resistant cutter steel and preparation method of wide coiled plate thereof |
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