CN106435400A - Improved stainless steel material and manufacturing method thereof - Google Patents
Improved stainless steel material and manufacturing method thereof Download PDFInfo
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- CN106435400A CN106435400A CN201610692249.2A CN201610692249A CN106435400A CN 106435400 A CN106435400 A CN 106435400A CN 201610692249 A CN201610692249 A CN 201610692249A CN 106435400 A CN106435400 A CN 106435400A
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- 239000000463 material Substances 0.000 title claims abstract description 51
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 50
- 239000010935 stainless steel Substances 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000002844 melting Methods 0.000 claims abstract description 25
- 230000008018 melting Effects 0.000 claims abstract description 25
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 23
- 239000000956 alloy Substances 0.000 claims abstract description 23
- 238000000137 annealing Methods 0.000 claims abstract description 23
- 238000005242 forging Methods 0.000 claims abstract description 16
- 238000005097 cold rolling Methods 0.000 claims abstract description 14
- 238000010891 electric arc Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 230000006698 induction Effects 0.000 claims abstract description 10
- 238000007670 refining Methods 0.000 claims abstract description 8
- 238000005098 hot rolling Methods 0.000 claims abstract description 7
- 238000005266 casting Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 22
- 238000005275 alloying Methods 0.000 claims description 12
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 238000007872 degassing Methods 0.000 claims description 9
- 229910052758 niobium Inorganic materials 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 238000003723 Smelting Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 229910052727 yttrium Inorganic materials 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000979 O alloy Inorganic materials 0.000 claims description 3
- 239000003870 refractory metal Substances 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 13
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 239000002253 acid Substances 0.000 description 4
- 229910001566 austenite Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C22C38/18—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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an improved stainless steel material and a manufacturing method thereof. The stainless steel material comprises, by weight percent, alloy elements including 0.3-1.2% of Si, 0.2-1.8% of Mn, 0.03-1% of Ti, 0.1-1% of Nb, 0.1-0.9% of Zr, 0.1-0.45% of Y, 18-30% of Cr, 13.6-32% of Ni and the balance Fe. The manufacturing method comprises the following specific steps of material preparing, vacuum induction melting, electric arc melting, forging, hot rolling, heat treatment, cold rolling and annealing grain refining treatment; and cold rolling and annealing grain refining treatment of the seventh step is repeatedly executed for 3-5 times, and the stainless steel material is obtained. The novel stainless steel with an austenite-ferrite double-phase structure is designed, the novel manufacturing method is designed for manufacturing the stainless steel material, and stainless steel material manufacturing can be carried out efficiently and quickly.
Description
Technical field
The present invention relates to new material technology field, specifically, be stainless steel material and the manufacturer thereof of a kind of modified form
Method.
Background technology
Stainless steel（Stainless Steel）It is the weak corrosive mediums such as the abbreviation of stainless acid resistant steel, resistance to air, steam, water
Or the steel grade with rustless property is referred to as stainless steel；And by resistance to chemical attack medium（The chemical etchings such as acid, alkali, salt）The steel grade of corrosion
It is referred to as acid resisting steel.Make their corrosion resistance different due to both differences in chemical composition, common stainless steel is typically weak to
Chemical mediator corrodes, and acid resisting steel then generally individually has rustless property.
Austenite-ferrite diphasic stainless steel, the advantage having austenite and ferritic stainless steel concurrently, and there is super moulding
Property.Austenite and ferritic structure respectively account for the stainless steel of half.Containing C relatively low in the case of, Cr content 18% ~ 28%, Ni
Content is 3% ~ 10%.Some steel are possibly together with alloying elements such as Mo, Cu, Si, Nb, Ti, N.Such steel has austenite and ferrite concurrently
Stainless feature, with ferritic phase ratio, plasticity, toughness are higher, and without brittleness at room temperature, intergranular corrosion resistance performance and welding performance are equal
Significantly improving, the 475 DEG C of fragility and the thermal conductivity factor that also maintain ferritic stainless steel high simultaneously, has the features such as superplasticity.
Compared with austenitic stainless steel, intensity height and intergranular corrosion resistance and resistance to chloride stress corrosion are significantly improved.Two phase stainless steel
There is excellent resistance to pitting performance, be also a kind of joint nickel and stainless steel.
Content of the invention
It is an object of the invention to design stainless steel material and the manufacture method thereof of a kind of modified form, design a kind of new
The stainless steel with austenite-ferrite dual phase structure of type, and design a kind of new system for making this stainless steel material
Make method, be capable of the manufacture of this stainless steel material of carrying out of efficient quick.
The present invention is achieved through the following technical solutions：The stainless steel material of a kind of modified form, described stainless steel material comprises
The alloying element being below measured by the percentage by weight：
Si：0.3 ~ 1.2%；
Mn：0.2 ~ 1.8%；
Ti：0.03～1%；
Nb： 0.1~1%；
Zr：0.1 ~ 0.9%；
Y：0.1 ~ 0.45%；
Cr：18 ~ 30%；
Ni：13.6 ~ 32%；
Balance of Fe.
Further described stainless steel material to better implement the present invention, uses following set-up mode especially：Described not
Rust Steel material comprises the following alloying element being measured by the percentage by weight：
Si：0.8%；
Mn：1.2%；
Ti：0.6%；
Nb： 0.4%；
Zr：0.5%；
Y：0.30%；
Cr：27%；
Ni：22%；
Fe： 47.2%.
A kind of manufacture method of the stainless steel material of modified form, including step in detail below：
1）Dispensing：According to the component of the alloying element dispensing of described stainless steel material, alloying element is weighed, and add this
The deoxidier Ca of stainless steel material weight 0.05% ~ 0.1%；
2）Vacuum induction melting：
Fe, Cr and Ni of dispensing are put in crucible, opens vacuum induction furnace door, successively by casting mould with equipped with Fe, Cr
Be placed in bottom and the middle part of vaccum sensitive stove with the crucible of Ni dispensing, then by dispensing Si, Mn, Ti, Nb, Zr, Y and 0.05%～
The deoxidier Ca of 0.1%, is sequentially placed in the feeder on vaccum sensitive stove top, closes fire door；Vaccum sensitive stove is evacuated to
10-2During Pa, using smelting temperature to be 1450 DEG C ~ 1550 DEG C Fe, Cr and the Ni in electric smelting crucible, initial power is 5 KW,
The mode being then lifted out power to 20KW carries out melting, after in formation molten bath in crucible and molten bath without other unreacted refractory metals, and will
Si, Mn, Ti, Nb, Zr, Y in the feeder of vaccum sensitive stove top sequentially puts into melting in crucible molten bath, finally by feeder
Deoxidier Ca put in molten bath deoxidation carried out to alloy molten solution, when 1500 DEG C ~ 1600 DEG C of temperature, by melting de-in crucible
Oxygen alloy liquation is poured in the casting mould of vacuum induction furnace bottom formation ingot casting, comes out of the stove ingot casting after mould cooling；
3）Electric arc melting：The ingot casting come out of the stove is carried out melting under vacuum at vacuum consumable electrode arc furnace, obtains alloy pig and go out
Stove is stand-by；
4）Forging：Forging, at a temperature of 1200 ~ 1300 DEG C, the alloy pig come out of the stove, forging ratio is 2 ~ 5；
5）Hot rolling：At a temperature of 800 ~ 900 DEG C, the alloy pig of forging being carried out hot rolling, rolling reduction is 30% ~ 70%, forging
Alloy pig is rolled into sheet material；
6）Heat treatment：The sheet material of roll forming is put in vacuum heat treatment furnace, is heated to 1000 ~ 1100 DEG C, be incubated 10
~ 50min, then air cooling annealing；
7）Cold rolling and annealing grain refining process：
Carrying out cold rolling to the sheet material after annealing, cold rolling amount is 8 ~ 18%, is subsequently placed in vacuum heat treatment furnace and carries out vacuum annealing,
Annealing temperature is 700 ~ 800 DEG C, and annealing time is 40min ~ 80min；
8）Repeat step 7）Cold rolling and annealing grain refining processing procedure 3 ~ 5 times, obtain described stainless steel material.
Further described method to better implement the present invention, uses following set-up mode especially：Carrying out described step
Rapid 2）Also include crucible and mould degassing processing step before：
It is heated to 300 ~ 1100 DEG C in crucible and casting mould are placed on high temperature drying case, be incubated 2h～9h, carry out degasification, so
After the crucible after degasification and casting mould are taken out stand-by from high temperature drying case.
Further described method to better implement the present invention, uses following set-up mode especially：Described step 3）Tool
Body is：The ingot casting excision rising head that will come out of the stove, is forged into the pole of Φ 65 ~ 80mm, bright and clean making of polishing at 1000 ~ 1100 DEG C
Consutrode；Consutrode is welded on the auxiliary electrode of vacuum consumable electrode arc furnace, vacuumizes and make vacuum consumable electrode arc furnace
Vacuum reaches 10-2Pa, then leaks hunting, it is ensured that be initially powered up the starting the arc when electric arc furnaces leak rate is less than 0.8Pa/min, voltage 25 ~
30V, electric current is fusing consutrode under 2200 ~ 3000A, makes the alloy molten solution of consutrode enter the water of vacuum consumable electrode arc furnace
Carrying out melting in cold copper crucible, until all melting consutrode, after cooling, alloy pig being come out of the stove, stand-by.
The present invention compared with prior art, has the following advantages and beneficial effect：
The present invention designs a kind of novel stainless steel with austenite-ferrite dual phase structure, and stainless for making this
Steel material and design a kind of new manufacture method, be capable of the manufacture of this stainless steel material of carrying out of efficient quick.
The method of the invention has strong adaptability, and the stainless steel material manufactured has corrosion-resistant, high temperature resistant etc.
Characteristic, described method uses vacuum manufacture, can improve the serviceability of produced product to greatest extent.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1：
The stainless steel material of a kind of modified form, described stainless steel material comprises the following alloying element being measured by the percentage by weight：
Si：0.3 ~ 1.2%；
Mn：0.2 ~ 1.8%；
Ti：0.03～1%；
Nb： 0.1~1%；
Zr：0.1 ~ 0.9%；
Y：0.1 ~ 0.45%；
Cr：18 ~ 30%；
Ni：13.6 ~ 32%；
Balance of Fe.
Embodiment 2：
The present embodiment is to optimize further on the basis of above-described embodiment, further to better implement the present invention described not
Rust Steel material, uses following set-up mode especially：Described stainless steel material comprises the following alloy being measured by the percentage by weight unit
Element：
Si：0.8%；
Mn：1.2%；
Ti：0.6%；
Nb： 0.4%；
Zr：0.5%；
Y：0.30%；
Cr：27%；
Ni：22%；
Fe： 47.2%.
Embodiment 3：
A kind of manufacture method of the stainless steel material of modified form, including step in detail below：
1）Dispensing：According to the component of the alloying element dispensing of described stainless steel material, alloying element is weighed, and add this
The deoxidier Ca of stainless steel material weight 0.05% ~ 0.1%；
2）Vacuum induction melting：
Fe, Cr and Ni of dispensing are put in crucible, opens vacuum induction furnace door, successively by casting mould with equipped with Fe, Cr
Be placed in bottom and the middle part of vaccum sensitive stove with the crucible of Ni dispensing, then by dispensing Si, Mn, Ti, Nb, Zr, Y and 0.05%～
The deoxidier Ca of 0.1%, is sequentially placed in the feeder on vaccum sensitive stove top, closes fire door；Vaccum sensitive stove is evacuated to
10-2During Pa, using smelting temperature to be 1450 DEG C ~ 1550 DEG C Fe, Cr and the Ni in electric smelting crucible, initial power is 5 KW,
The mode being then lifted out power to 20KW carries out melting, after in formation molten bath in crucible and molten bath without other unreacted refractory metals, and will
Si, Mn, Ti, Nb, Zr, Y in the feeder of vaccum sensitive stove top sequentially puts into melting in crucible molten bath, finally by feeder
Deoxidier Ca put in molten bath deoxidation carried out to alloy molten solution, when 1500 DEG C ~ 1600 DEG C of temperature, by melting de-in crucible
Oxygen alloy liquation is poured in the casting mould of vacuum induction furnace bottom formation ingot casting, comes out of the stove ingot casting after mould cooling；
3）Electric arc melting：The ingot casting come out of the stove is carried out melting under vacuum at vacuum consumable electrode arc furnace, obtains alloy pig and go out
Stove is stand-by；
4）Forging：Forging, at a temperature of 1200 ~ 1300 DEG C, the alloy pig come out of the stove, forging ratio is 2 ~ 5；
5）Hot rolling：At a temperature of 800 ~ 900 DEG C, the alloy pig of forging being carried out hot rolling, rolling reduction is 30% ~ 70%, forging
Alloy pig is rolled into sheet material；
6）Heat treatment：The sheet material of roll forming is put in vacuum heat treatment furnace, is heated to 1000 ~ 1100 DEG C, be incubated 10
~ 50min, then air cooling annealing；
7）Cold rolling and annealing grain refining process：
Carrying out cold rolling to the sheet material after annealing, cold rolling amount is 8 ~ 18%, is subsequently placed in vacuum heat treatment furnace and carries out vacuum annealing,
Annealing temperature is 700 ~ 800 DEG C, and annealing time is 40min ~ 80min；
8）Repeat step 7）Cold rolling and annealing grain refining processing procedure 3 ~ 5 times, obtain described stainless steel material.
Embodiment 4：
The present embodiment is to optimize further on the basis of above-described embodiment, further described side to better implement the present invention
Method, uses following set-up mode especially：Carrying out described step 2）Also include crucible and mould degassing processing step before：
It is heated to 300 ~ 1100 DEG C in crucible and casting mould are placed on high temperature drying case, be incubated 2h～9h, carry out degasification, so
After the crucible after degasification and casting mould are taken out stand-by from high temperature drying case.
Embodiment 5：
The present embodiment is to optimize further on the basis of any of the above-described embodiment, further institute to better implement the present invention
State method, use following set-up mode especially：Described step 3）It is specially：The ingot casting excision rising head that will come out of the stove, 1000 ~ 1100
It DEG C is forged into the pole of Φ 65 ~ 80mm, polish and bright and clean make consutrode；Consutrode is welded on vacuum consumable electric arc
On the auxiliary electrode of stove, vacuumize and make the vacuum of vacuum consumable electrode arc furnace reach 10-2Pa, then leaks hunting, it is ensured that electric arc furnaces leaks
Being initially powered up the starting the arc when rate is less than 0.8Pa/min, at voltage 25 ~ 30V, electric current is fusing consutrode under 2200 ~ 3000A, makes
Carry out melting in the water jacketed copper crucible of the alloy molten solution entrance vacuum consumable electrode arc furnace of consutrode, until consutrode is whole
Alloy pig is come out of the stove after cooling by fusing, stand-by.
The above, be only presently preferred embodiments of the present invention, not does any pro forma restriction to the present invention, every depends on
Any simple modification of being made above example according to the technical spirit of the present invention, equivalent variations, each fall within the protection of the present invention
Within the scope of.
Claims (5)
1. the stainless steel material of a modified form, it is characterised in that：Described stainless steel material comprise following by weight percentage
The alloying element of amount：
Si：0.3 ~ 1.2%；
Mn：0.2 ~ 1.8%；
Ti：0.03～1%；
Nb： 0.1~1%；
Zr：0.1 ~ 0.9%；
Y：0.1 ~ 0.45%；
Cr：18 ~ 30%；
Ni：13.6 ~ 32%；
Balance of Fe.
2. the stainless steel material of a kind of modified form according to claim 1, it is characterised in that：Described stainless steel material comprises
The alloying element being below measured by the percentage by weight：
Si：0.8%；
Mn：1.2%；
Ti：0.6%；
Nb： 0.4%；
Zr：0.5%；
Y：0.30%；
Cr：27%；
Ni：22%；
Fe： 47.2%.
3. the manufacture method of the stainless steel material of a kind of modified form as claimed in claim 1 or 2, it is characterised in that：Including with
Lower concrete steps：
1）Dispensing：According to the component of the alloying element dispensing of described stainless steel material, alloying element is weighed, and add this
The deoxidier Ca of stainless steel material weight 0.05% ~ 0.1%；
2）Vacuum induction melting：
Fe, Cr and Ni of dispensing are put in crucible, opens vacuum induction furnace door, successively by casting mould with equipped with Fe, Cr
Be placed in bottom and the middle part of vaccum sensitive stove with the crucible of Ni dispensing, then by dispensing Si, Mn, Ti, Nb, Zr, Y and 0.05%～
The deoxidier Ca of 0.1%, is sequentially placed in the feeder on vaccum sensitive stove top, closes fire door；Vaccum sensitive stove is evacuated to
10-2During Pa, using smelting temperature to be 1450 DEG C ~ 1550 DEG C Fe, Cr and the Ni in electric smelting crucible, initial power is 5 KW,
The mode being then lifted out power to 20KW carries out melting, after in formation molten bath in crucible and molten bath without other unreacted refractory metals, and will
Si, Mn, Ti, Nb, Zr, Y in the feeder of vaccum sensitive stove top sequentially puts into melting in crucible molten bath, finally by feeder
Deoxidier Ca put in molten bath deoxidation carried out to alloy molten solution, when 1500 DEG C ~ 1600 DEG C of temperature, by melting de-in crucible
Oxygen alloy liquation is poured in the casting mould of vacuum induction furnace bottom formation ingot casting, comes out of the stove ingot casting after mould cooling；
3）Electric arc melting：The ingot casting come out of the stove is carried out melting under vacuum at vacuum consumable electrode arc furnace, obtains alloy pig and go out
Stove is stand-by；
4）Forging：Forging, at a temperature of 1200 ~ 1300 DEG C, the alloy pig come out of the stove, forging ratio is 2 ~ 5；
5）Hot rolling：At a temperature of 800 ~ 900 DEG C, the alloy pig of forging being carried out hot rolling, rolling reduction is 30% ~ 70%, forging
Alloy pig is rolled into sheet material；
6）Heat treatment：The sheet material of roll forming is put in vacuum heat treatment furnace, is heated to 1000 ~ 1100 DEG C, be incubated 10
~ 50min, then air cooling annealing；
7）Cold rolling and annealing grain refining process：
Carrying out cold rolling to the sheet material after annealing, cold rolling amount is 8 ~ 18%, is subsequently placed in vacuum heat treatment furnace and carries out vacuum annealing,
Annealing temperature is 700 ~ 800 DEG C, and annealing time is 40min ~ 80min；
8）Repeat step 7）Cold rolling and annealing grain refining processing procedure 3 ~ 5 times, obtain described stainless steel material.
4. the manufacture method of the stainless steel material of a kind of modified form according to claim 3, it is characterised in that：Carry out institute
State step 2）Also include crucible and mould degassing processing step before：
It is heated to 300 ~ 1100 DEG C in crucible and casting mould are placed on high temperature drying case, be incubated 2h～9h, carry out degasification, so
After the crucible after degasification and casting mould are taken out stand-by from high temperature drying case.
5. the stainless steel material of a kind of modified form according to claim 3 or 4 and manufacture method thereof, it is characterised in that：Institute
State step 3）It is specially：The ingot casting excision rising head that will come out of the stove, is forged into the pole of Φ 65 ~ 80mm, is beaten at 1000 ~ 1100 DEG C
Polish and clean make consutrode；Consutrode is welded on the auxiliary electrode of vacuum consumable electrode arc furnace, vacuumizes and make vacuum certainly
The vacuum of consumption electric arc furnaces reaches 10-2Pa, then leaks hunting, it is ensured that be initially powered up the starting the arc when electric arc furnaces leak rate is less than 0.8Pa/min,
At voltage 25 ~ 30V, electric current is fusing consutrode under 2200 ~ 3000A, makes the alloy molten solution of consutrode enter vacuum consumable
Carrying out melting in the water jacketed copper crucible of electric arc furnaces, until all melting consutrode, after cooling, alloy pig being come out of the stove, stand-by.
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| CN201610692249.2A CN106435400A (en) | 2016-08-20 | 2016-08-20 | Improved stainless steel material and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929764A (en) * | 2017-04-11 | 2017-07-07 | 西北工业大学 | A kind of nanocrystalline/bimodal block materials of Ultra-fine Grained two-phase and preparation method |
| CN107164615A (en) * | 2017-06-08 | 2017-09-15 | 合肥帧讯低温科技有限公司 | Preparation method of stainless steel |
| CN107794350A (en) * | 2017-10-13 | 2018-03-13 | 重庆派斯克刀具制造股份有限公司 | A kind of H.S.S. production technique |
| CN112575261A (en) * | 2020-12-09 | 2021-03-30 | 广东省科学院材料与加工研究所 | Composite modified martensitic alloy cast steel and preparation method thereof |
| CN113500097A (en) * | 2021-07-30 | 2021-10-15 | 王声兰 | Preparation method and application of alloy thin-wall capillary tube for hydrogen purification |
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| CN106929764A (en) * | 2017-04-11 | 2017-07-07 | 西北工业大学 | A kind of nanocrystalline/bimodal block materials of Ultra-fine Grained two-phase and preparation method |
| CN107164615A (en) * | 2017-06-08 | 2017-09-15 | 合肥帧讯低温科技有限公司 | Preparation method of stainless steel |
| CN107794350A (en) * | 2017-10-13 | 2018-03-13 | 重庆派斯克刀具制造股份有限公司 | A kind of H.S.S. production technique |
| CN112575261A (en) * | 2020-12-09 | 2021-03-30 | 广东省科学院材料与加工研究所 | Composite modified martensitic alloy cast steel and preparation method thereof |
| CN112575261B (en) * | 2020-12-09 | 2022-02-01 | 广东省科学院新材料研究所 | Composite modified martensitic alloy cast steel |
| CN113500097A (en) * | 2021-07-30 | 2021-10-15 | 王声兰 | Preparation method and application of alloy thin-wall capillary tube for hydrogen purification |
| CN113500097B (en) * | 2021-07-30 | 2023-03-03 | 李新中 | Preparation method and application of alloy thin-walled capillary for hydrogen purification |
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