CN106086703A - A kind of cutlery stainless steel material and preparation method thereof - Google Patents

A kind of cutlery stainless steel material and preparation method thereof Download PDF

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CN106086703A
CN106086703A CN201610384971.XA CN201610384971A CN106086703A CN 106086703 A CN106086703 A CN 106086703A CN 201610384971 A CN201610384971 A CN 201610384971A CN 106086703 A CN106086703 A CN 106086703A
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stainless steel
parts
cooled
copper
steel material
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盛健平
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Xinchang County Ruao Chenhui Stainless Steel Product Factory
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Xinchang County Ruao Chenhui Stainless Steel Product Factory
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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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • 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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/18—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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

The invention discloses a kind of cutlery stainless steel material and preparation method thereof, described cutlery stainless steel material includes the following chemical composition according to mass fraction meter: carbon, chromium, manganese, zinc, aluminum, molybdenum, nitrogen, silicon, nickel, copper, titanium, vanadium, barium, lithium, zirconium, stannum, niobium, hafnium, lanthanum, arsenic, sulfur, phosphorus, the pig iron, scrap iron.The present invention with the addition of multiple alloying element, post-processing temperature is cast by conservative control, throwing raw materials in batches, add the intensity of alloy, wearability, reduce fragility, there is mechanical performance, processing performance, pyro-oxidation resistance and the Corrosion Protection of excellence, and there is good toughness and plasticity, having high impact resistance, non-corrosive bright, sharp with its cutter made, service life is long simultaneously.

Description

A kind of cutlery stainless steel material and preparation method thereof
Technical field
The present invention relates to stainless steel products manufacture technology field, specifically a kind of cutlery stainless steel material and preparation side thereof Method.
Background technology
Electric drill is a kind of widely used electric tool, is widely used in building, processing and other fields.Electric drill main Principle is the rotation by motor, drives and drives apparatus for work, so that drill bit scraping material surface is to pierce object, drill bit It is one of requisite parts of electric drill.
Drill bit material is mainly high-speed steel and hard alloy at present, and both alloy rigidities are high, wear-resisting, red hardness is good, and And keep certain toughness, but electric drill is in use, often occurs fractureing, blade is easy to wear or buckling phenomenon, drill bit It is frequently necessary to change, be primarily due to the performances such as the hardness of drill bit material, wearability, toughness and can not reach balance.
Summary of the invention
It is an object of the invention to provide a kind of hardness cutlery stainless steel material high, corrosion resistant and preparation method thereof, With the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of cutlery stainless steel material, the following chemical composition including according to mass fraction meter: carbon 0.3-0.5 part, chromium 15-25 Part, manganese 1-1.5 part, zinc 0.8-1.2 part, aluminum 1-2 part, molybdenum 1-5 part, nitrogen 0.1-0.3 part, silicon 0.5-0.9 part, nickel 0.4-0.6 part, Copper 0.04-0.08 part, titanium 0.1-0.3 part, vanadium 0.02-0.04 part, barium 0.06-0.08 part, lithium 0.02-0.04 part, zirconium 0.02- 0.04 part, stannum 0.02-0.04 part, niobium 0.07-0.11 part, hafnium 0.01-0.05 part, lanthanum 0.03-0.07 part, arsenic 0.02-0.06 part, Sulfur 0.008-0.012 part, phosphorus 0.005-0.01 part, pig iron 40-60 part, scrap iron 20-30 part.
As the further scheme of the present invention: described cutlery stainless steel material, as follows including according to mass fraction meter Chemical composition: carbon 0.35-0.45 part, chromium 18-22 part, manganese 1.1-1.4 part, zinc 0.9-1.1 part, aluminum 1.2-1.8 part, molybdenum 2-4 part, Nitrogen 0.15-0.25 part, silicon 0.6-0.8 part, nickel 0.45-0.55 part, copper 0.05-0.07 part, titanium 0.15-0.25 part, vanadium 0.025- 0.035 part, barium 0.065-0.075 part, lithium 0.025-0.035 part, zirconium 0.025-0.035 part, stannum 0.025-0.035 part, niobium 0.08-0.1 part, hafnium 0.02-0.04 part, lanthanum 0.04-0.06 part, arsenic 0.03-0.05 part, sulfur 0.009-0.011 part, phosphorus 0.006- 0.009 part, pig iron 45-55 part, scrap iron 22-28 part.
As the present invention further scheme: described cutlery stainless steel material, including according to mass fraction meter as Lower chemical composition: 0.4 part of carbon, chromium 20 parts, 1.2 parts of manganese, 1 part of zinc, 1.5 parts of aluminum, molybdenum 3 parts, 0.2 part of nitrogen, silicon 0.7 part, nickel 0.5 Part, copper 0.06 part, titanium 0.2 part, vanadium 0.03 part, barium 0.07 part, lithium 0.03 part, zirconium 0.03 part, 0.03 part of stannum, niobium 0.09 part, hafnium 0.03 part, lanthanum 0.05 part, arsenic 0.04 part, sulfur 0.01 part, 0.008 part of phosphorus, the pig iron 50 parts, 25 parts of scrap iron.
The preparation method of described cutlery stainless steel material, specifically comprises the following steps that
(1) each raw material is weighed according to weight portion；
(2) pig iron is added to put in stove and melts, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying component and enter Row alloying, add scrap iron fusing, add refining agent double refining, detect and adjust chemical element component content to the most qualified, Casting；
(3) carry out casting after-baking, first by room temperature with the ramp of 200-220 DEG C/h to 740-760 DEG C, then with 180-200 DEG C/speed of h is cooled to 620-640 DEG C, then with the ramp of 230-250 DEG C/h to 920-940 DEG C, it is incubated 3-4h；Again with 220-240 DEG C/h leads and is cooled to 630-650 DEG C, is incubated 50-70min, then is cooled to 200-220 DEG C with 240-250 DEG C/h speed, Insulation 2-3h；Again with 160-170 DEG C/h ramp to 340-360 DEG C, it is incubated 40-50min, then with 160-170 DEG C/h speed Being warming up to 500-520 DEG C, be incubated 3-4h, it is standby that taking-up air cooling obtains ferrum；
(4) ferrum step (3) obtained and other rustless steel compositions join and carry out vacuum induction smelting in vacuum induction smelting furnace Refining, after 1200-1600 DEG C is smelted 10-20min, is cast into ingot casting after carrying out magnetic agitation；
(5) by ingot casting after 1000-1200 DEG C of insulation 1-2h carries out homogenizing annealing, it is forged into bar-shaped or block sample；
(6) by forging gained sample at 1000-1100 DEG C of solution treatment 0.5-1h, element in steel is made fully to be solid-solution in matrix, After being cooled to room temperature, the copper in steel is made to be in hypersaturated state；
(7) carry out Ageing Treatment at 500-700 DEG C, process time 0.5-1.5h, be cooled to room temperature after Ageing Treatment, make supersaturation Copper separate out from steel, thus obtain described cutlery stainless steel.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention with the addition of multiple alloying element, casts post-processing temperature, in batches throwing raw materials by conservative control, adds alloy Intensity, wearability, reduce fragility, have excellence mechanical performance, processing performance, pyro-oxidation resistance and anticorrosive property Can, and there is good toughness and plasticity, there is high impact resistance simultaneously, bright, sharp with its cutter made, Non-corrosive, service life is long.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Embodiment 1
A kind of cutlery stainless steel material, the following chemical composition including according to mass fraction meter: 0.3 part of carbon, chromium 15 parts, manganese 1 Part, 0.8 part of zinc, 1 part of aluminum, molybdenum 1 part, 0.1 part of nitrogen, silicon 0.5 part, 0.4 part of nickel, copper 0.04 part, titanium 0.1 part, vanadium 0.02 part, barium 0.06 part, lithium 0.02 part, zirconium 0.02 part, 0.02 part of stannum, niobium 0.07 part, hafnium 0.01 part, lanthanum 0.03 part, arsenic 0.02 part, sulfur 0.008 Part, 0.005 part of phosphorus, the pig iron 40 parts, 20 parts of scrap iron.
The preparation method of described cutlery stainless steel material, specifically comprises the following steps that
(1) each raw material is weighed according to weight portion；
(2) pig iron is added to put in stove and melts, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying component and enter Row alloying, add scrap iron fusing, add refining agent double refining, detect and adjust chemical element component content to the most qualified, Casting；
(3) carry out casting after-baking, first by room temperature with the ramp of 200 DEG C/h to 740 DEG C, then drop with the speed of 180 DEG C/h Temperature is to 620 DEG C, then with the ramp of 230 DEG C/h to 920 DEG C, is incubated 3h；Lead with 220 DEG C/h again and be cooled to 630 DEG C, insulation 50min, then it is cooled to 200 DEG C with 240 DEG C/h speed, it is incubated 2h；Again with 160 DEG C/h ramp to 340 DEG C, it is incubated 40min, Again with 160 DEG C/h ramp to 500 DEG C, being incubated 3h, it is standby that taking-up air cooling obtains ferrum；
(4) ferrum step (3) obtained and other rustless steel compositions join and carry out vacuum induction smelting in vacuum induction smelting furnace Refining, after 1200 DEG C are smelted 10min, is cast into ingot casting after carrying out magnetic agitation；
(5) by ingot casting after 1000 DEG C of insulation 1h carry out homogenizing annealing, it is forged into bar-shaped or block sample；
(6) by forging gained sample at 1000 DEG C of solution treatment 0.5h, make element in steel fully be solid-solution in matrix, be cooled to room Wen Hou, makes the copper in steel be in hypersaturated state；
(7) carry out Ageing Treatment at 500 DEG C, process time 0.5h, be cooled to room temperature after Ageing Treatment, make oversaturated copper from steel Middle precipitation, thus obtain described cutlery stainless steel.
Embodiment 2
A kind of cutlery stainless steel material, the following chemical composition including according to mass fraction meter: 0.35 part of carbon, chromium 18 parts, manganese 1.1 parts, 0.9 part of zinc, 1.2 parts of aluminum, molybdenum 2 parts, 0.15 part of nitrogen, silicon 0.6 part, 0.45 part of nickel, copper 0.05 part, titanium 0.15 part, vanadium 0.025 part, barium 0.065 part, lithium 0.025 part, zirconium 0.025 part, 0.025 part of stannum, niobium 0.08 part, hafnium 0.02 part, lanthanum 0.04 part, arsenic 0.03 part, sulfur 0.009 part, 0.006 part of phosphorus, the pig iron 45 parts, 22 parts of scrap iron.
The preparation method of described cutlery stainless steel material, specifically comprises the following steps that
(1) each raw material is weighed according to weight portion；
(2) pig iron is added to put in stove and melts, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying component and enter Row alloying, add scrap iron fusing, add refining agent double refining, detect and adjust chemical element component content to the most qualified, Casting；
(3) carry out casting after-baking, first by room temperature with the ramp of 205 DEG C/h to 745 DEG C, then drop with the speed of 185 DEG C/h Temperature is to 625 DEG C, then with the ramp of 235 DEG C/h to 925 DEG C, is incubated 3.2h；Lead with 225 DEG C/h again and be cooled to 635 DEG C, insulation 55min, then it is cooled to 205 DEG C with 242 DEG C/h speed, it is incubated 2.2h；Again with 162 DEG C/h ramp to 345 DEG C, insulation 42min, then with 162 DEG C/h ramp to 505 DEG C, it is incubated 3.2h, it is standby that taking-up air cooling obtains ferrum；
(4) ferrum step (3) obtained and other rustless steel compositions join and carry out vacuum induction smelting in vacuum induction smelting furnace Refining, after 1300 DEG C are smelted 12min, is cast into ingot casting after carrying out magnetic agitation；
(5) by ingot casting after 1050 DEG C of insulation 1.2h carry out homogenizing annealing, it is forged into bar-shaped or block sample；
(6) by forging gained sample at 1020 DEG C of solution treatment 0.6h, make element in steel fully be solid-solution in matrix, be cooled to room Wen Hou, makes the copper in steel be in hypersaturated state；
(7) carry out Ageing Treatment at 550 DEG C, process time 0.8h, be cooled to room temperature after Ageing Treatment, make oversaturated copper from steel Middle precipitation, thus obtain described cutlery stainless steel.
Embodiment 3
A kind of cutlery stainless steel material, the following chemical composition including according to mass fraction meter: 0.4 part of carbon, chromium 20 parts, manganese 1.2 parts, 1 part of zinc, 1.5 parts of aluminum, molybdenum 3 parts, 0.2 part of nitrogen, silicon 0.7 part, 0.5 part of nickel, copper 0.06 part, titanium 0.2 part, vanadium 0.03 part, Barium 0.07 part, lithium 0.03 part, zirconium 0.03 part, 0.03 part of stannum, niobium 0.09 part, hafnium 0.03 part, lanthanum 0.05 part, arsenic 0.04 part, sulfur 0.01 part, 0.008 part of phosphorus, the pig iron 50 parts, 25 parts of scrap iron.
The preparation method of described cutlery stainless steel material, specifically comprises the following steps that
(1) each raw material is weighed according to weight portion；
(2) pig iron is added to put in stove and melts, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying component and enter Row alloying, add scrap iron fusing, add refining agent double refining, detect and adjust chemical element component content to the most qualified, Casting；
(3) carry out casting after-baking, first by room temperature with the ramp of 210 DEG C/h to 750 DEG C, then drop with the speed of 190 DEG C/h Temperature is to 630 DEG C, then with the ramp of 240 DEG C/h to 930 DEG C, is incubated 3.5h；Lead with 230 DEG C/h again and be cooled to 640 DEG C, insulation 60min, then it is cooled to 210 DEG C with 245 DEG C/h speed, it is incubated 2.5h；Again with 165 DEG C/h ramp to 350 DEG C, insulation 45min, then with 165 DEG C/h ramp to 510 DEG C, it is incubated 3.5h, it is standby that taking-up air cooling obtains ferrum；
(4) ferrum step (3) obtained and other rustless steel compositions join and carry out vacuum induction smelting in vacuum induction smelting furnace Refining, after 1400 DEG C are smelted 15min, is cast into ingot casting after carrying out magnetic agitation；
(5) by ingot casting after 1100 DEG C of insulation 1.5h carry out homogenizing annealing, it is forged into bar-shaped or block sample；
(6) by forging gained sample at 1050 DEG C of solution treatment 0.8h, make element in steel fully be solid-solution in matrix, be cooled to room Wen Hou, makes the copper in steel be in hypersaturated state；
(7) carry out Ageing Treatment at 600 DEG C, process time 1h, be cooled to room temperature after Ageing Treatment, make oversaturated copper from steel Separate out, thus obtain described cutlery stainless steel.
Embodiment 4
A kind of cutlery stainless steel material, the following chemical composition including according to mass fraction meter: 0.45 part of carbon, chromium 22 parts, manganese 1.4 parts, 1.1 parts of zinc, 1.8 parts of aluminum, molybdenum 4 parts, 0.25 part of nitrogen, silicon 0.8 part, 0.55 part of nickel, copper 0.07 part, titanium 0.25 part, vanadium 0.035 part, barium 0.075 part, lithium 0.035 part, zirconium 0.035 part, 0.035 part of stannum, niobium 0.1 part, hafnium 0.04 part, lanthanum 0.06 part, arsenic 0.05 part, sulfur 0.011 part, 0.009 part of phosphorus, the pig iron 55 parts, 28 parts of scrap iron.
The preparation method of described cutlery stainless steel material, specifically comprises the following steps that
(1) each raw material is weighed according to weight portion；
(2) pig iron is added to put in stove and melts, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying component and enter Row alloying, add scrap iron fusing, add refining agent double refining, detect and adjust chemical element component content to the most qualified, Casting；
(3) carry out casting after-baking, first by room temperature with the ramp of 215 DEG C/h to 755 DEG C, then drop with the speed of 195 DEG C/h Temperature is to 635 DEG C, then with the ramp of 245 DEG C/h to 935 DEG C, is incubated 3.8h；Lead with 235 DEG C/h again and be cooled to 645 DEG C, insulation 65min, then it is cooled to 215 DEG C with 248 DEG C/h speed, it is incubated 2.8h；Again with 168 DEG C/h ramp to 355 DEG C, insulation 48min, then with 168 DEG C/h ramp to 515 DEG C, it is incubated 3.8h, it is standby that taking-up air cooling obtains ferrum；
(4) ferrum step (3) obtained and other rustless steel compositions join and carry out vacuum induction smelting in vacuum induction smelting furnace Refining, after 1500 DEG C are smelted 18min, is cast into ingot casting after carrying out magnetic agitation；
(5) by ingot casting after 1150 DEG C of insulation 1.8h carry out homogenizing annealing, it is forged into bar-shaped or block sample；
(6) by forging gained sample at 1080 DEG C of solution treatment 0.9h, make element in steel fully be solid-solution in matrix, be cooled to room Wen Hou, makes the copper in steel be in hypersaturated state；
(7) carry out Ageing Treatment at 650 DEG C, process time 1.2h, be cooled to room temperature after Ageing Treatment, make oversaturated copper from steel Middle precipitation, thus obtain described cutlery stainless steel.
Embodiment 5
A kind of cutlery stainless steel material, the following chemical composition including according to mass fraction meter: 0.5 part of carbon, chromium 25 parts, manganese 1.5 parts, 1.2 parts of zinc, 2 parts of aluminum, molybdenum 5 parts, 0.3 part of nitrogen, silicon 0.9 part, 0.6 part of nickel, copper 0.08 part, titanium 0.3 part, vanadium 0.04 part, Barium 0.08 part, lithium 0.04 part, zirconium 0.04 part, 0.04 part of stannum, niobium 0.11 part, hafnium 0.05 part, lanthanum 0.07 part, arsenic 0.06 part, sulfur 0.012 part, 0.01 part of phosphorus, the pig iron 60 parts, 30 parts of scrap iron.
The preparation method of described cutlery stainless steel material, specifically comprises the following steps that
(1) each raw material is weighed according to weight portion；
(2) pig iron is added to put in stove and melts, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying component and enter Row alloying, add scrap iron fusing, add refining agent double refining, detect and adjust chemical element component content to the most qualified, Casting；
(3) carry out casting after-baking, first by room temperature with the ramp of 220 DEG C/h to 760 DEG C, then drop with the speed of 200 DEG C/h Temperature is to 640 DEG C, then with the ramp of 250 DEG C/h to 940 DEG C, is incubated 4h；Lead with 240 DEG C/h again and be cooled to 650 DEG C, insulation 70min, then it is cooled to 220 DEG C with 250 DEG C/h speed, it is incubated 3h；Again with 170 DEG C/h ramp to 360 DEG C, it is incubated 50min, Again with 170 DEG C/h ramp to 520 DEG C, being incubated 4h, it is standby that taking-up air cooling obtains ferrum；
(4) ferrum step (3) obtained and other rustless steel compositions join and carry out vacuum induction smelting in vacuum induction smelting furnace Refining, after 1600 DEG C are smelted 20min, is cast into ingot casting after carrying out magnetic agitation；
(5) by ingot casting after 1200 DEG C of insulation 2h carry out homogenizing annealing, it is forged into bar-shaped or block sample；
(6) by forging gained sample at 1100 DEG C of solution treatment 1h, make element in steel fully be solid-solution in matrix, be cooled to room temperature After, make the copper in steel be in hypersaturated state；
(7) carry out Ageing Treatment at 700 DEG C, process time 1.5h, be cooled to room temperature after Ageing Treatment, make oversaturated copper from steel Middle precipitation, thus obtain described cutlery stainless steel.
The present invention with the addition of multiple alloying element, casts post-processing temperature, in batches throwing raw materials by conservative control, adds The intensity of alloy, wearability, reduce fragility, has mechanical performance, processing performance, pyro-oxidation resistance and the anticorrosion of excellence Erosion performance, and there is good toughness and plasticity, there is high impact resistance simultaneously, bright with its cutter made, Sharp, non-corrosive, service life is long.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment party Formula, in the ken that one skilled in the relevant art is possessed, it is also possible on the premise of without departing from this patent objective Various changes can be made.

Claims (4)

1. a cutlery stainless steel material, it is characterised in that include the following chemical composition according to mass fraction meter: carbon 0.3- 0.5 part, chromium 15-25 part, manganese 1-1.5 part, zinc 0.8-1.2 part, aluminum 1-2 part, molybdenum 1-5 part, nitrogen 0.1-0.3 part, silicon 0.5-0.9 Part, nickel 0.4-0.6 part, copper 0.04-0.08 part, titanium 0.1-0.3 part, vanadium 0.02-0.04 part, barium 0.06-0.08 part, lithium 0.02- 0.04 part, zirconium 0.02-0.04 part, stannum 0.02-0.04 part, niobium 0.07-0.11 part, hafnium 0.01-0.05 part, lanthanum 0.03-0.07 part, Arsenic 0.02-0.06 part, sulfur 0.008-0.012 part, phosphorus 0.005-0.01 part, pig iron 40-60 part, scrap iron 20-30 part.
Cutlery stainless steel material the most according to claim 1, it is characterised in that include according to mass fraction meter is as follows Chemical composition: carbon 0.35-0.45 part, chromium 18-22 part, manganese 1.1-1.4 part, zinc 0.9-1.1 part, aluminum 1.2-1.8 part, molybdenum 2-4 part, Nitrogen 0.15-0.25 part, silicon 0.6-0.8 part, nickel 0.45-0.55 part, copper 0.05-0.07 part, titanium 0.15-0.25 part, vanadium 0.025- 0.035 part, barium 0.065-0.075 part, lithium 0.025-0.035 part, zirconium 0.025-0.035 part, stannum 0.025-0.035 part, niobium 0.08-0.1 part, hafnium 0.02-0.04 part, lanthanum 0.04-0.06 part, arsenic 0.03-0.05 part, sulfur 0.009-0.011 part, phosphorus 0.006- 0.009 part, pig iron 45-55 part, scrap iron 22-28 part.
Cutlery stainless steel material the most according to claim 1, it is characterised in that include according to mass fraction meter is as follows Chemical composition: 0.4 part of carbon, chromium 20 parts, 1.2 parts of manganese, 1 part of zinc, 1.5 parts of aluminum, molybdenum 3 parts, 0.2 part of nitrogen, silicon 0.7 part, 0.5 part of nickel, Copper 0.06 part, titanium 0.2 part, vanadium 0.03 part, barium 0.07 part, lithium 0.03 part, zirconium 0.03 part, 0.03 part of stannum, niobium 0.09 part, hafnium 0.03 Part, lanthanum 0.05 part, arsenic 0.04 part, sulfur 0.01 part, 0.008 part of phosphorus, the pig iron 50 parts, 25 parts of scrap iron.
4. the preparation method of the cutlery stainless steel material as described in claim 1-3 is arbitrary, it is characterised in that specifically walk Rapid as follows:
(1) each raw material is weighed according to weight portion；
(2) pig iron is added to put in stove and melts, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying component and enter Row alloying, add scrap iron fusing, add refining agent double refining, detect and adjust chemical element component content to the most qualified, Casting；
(3) carry out casting after-baking, first by room temperature with the ramp of 200-220 DEG C/h to 740-760 DEG C, then with 180-200 DEG C/speed of h is cooled to 620-640 DEG C, then with the ramp of 230-250 DEG C/h to 920-940 DEG C, it is incubated 3-4h；Again with 220-240 DEG C/h leads and is cooled to 630-650 DEG C, is incubated 50-70min, then is cooled to 200-220 DEG C with 240-250 DEG C/h speed, Insulation 2-3h；Again with 160-170 DEG C/h ramp to 340-360 DEG C, it is incubated 40-50min, then with 160-170 DEG C/h speed Being warming up to 500-520 DEG C, be incubated 3-4h, it is standby that taking-up air cooling obtains ferrum；
(4) ferrum step (3) obtained and other rustless steel compositions join and carry out vacuum induction smelting in vacuum induction smelting furnace Refining, after 1200-1600 DEG C is smelted 10-20min, is cast into ingot casting after carrying out magnetic agitation；
(5) by ingot casting after 1000-1200 DEG C of insulation 1-2h carries out homogenizing annealing, it is forged into bar-shaped or block sample；
(6) by forging gained sample at 1000-1100 DEG C of solution treatment 0.5-1h, element in steel is made fully to be solid-solution in matrix, After being cooled to room temperature, the copper in steel is made to be in hypersaturated state；
(7) carry out Ageing Treatment at 500-700 DEG C, process time 0.5-1.5h, be cooled to room temperature after Ageing Treatment, make supersaturation Copper separate out from steel, thus obtain described cutlery stainless steel.
CN201610384971.XA 2016-06-02 2016-06-02 A kind of cutlery stainless steel material and preparation method thereof Pending CN106086703A (en)

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Application publication date: 20161109