CN111593277A - Austenitic stainless steel and preparation method thereof - Google Patents
Austenitic stainless steel and preparation method thereof Download PDFInfo
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- CN111593277A CN111593277A CN202010385508.3A CN202010385508A CN111593277A CN 111593277 A CN111593277 A CN 111593277A CN 202010385508 A CN202010385508 A CN 202010385508A CN 111593277 A CN111593277 A CN 111593277A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
Abstract
The invention discloses austenitic stainless steel and a preparation method thereof, and particularly relates to the technical field of preparation of austenitic stainless steel, wherein the used raw materials comprise, by weight, 18-20 parts of chromium, 8-10 parts of nickel, 0.1-0.3 part of carbon, 1-3 parts of molybdenum, 0.1-0.4 part of copper, 0.02-0.06 part of silicon, 0.02-0.05 part of niobium, 0.4-0.8 part of titanium, 2-4 parts of iron, 8-16 parts of glass fiber, 10-14 parts of carbon fiber, 4-10 parts of aluminum oxide and 8-12 parts of copper oxide, and the used auxiliary materials comprise, by weight, 2-8 parts of epoxy resin and 2-8 parts of colloidal graphite powder. The austenitic stainless steel prepared by the invention has good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, and the coating liquid prepared by mixing and stirring the powder ground by iron, carbon fiber, aluminum oxide and copper oxide with epoxy resin and colloidal graphite powder is uniformly coated on a casting, thereby effectively improving the wear resistance and hardness of the austenitic stainless steel and prolonging the service life of the austenitic stainless steel.
Description
Technical Field
The embodiment of the invention relates to the technical field of preparation of austenitic stainless steel, and particularly relates to austenitic stainless steel and a preparation method thereof.
Background
Stainless steel is popularly said to be a steel which is not easily rusted, and actually a part of stainless steel has both stainless property and acid resistance (corrosion resistance), and the stainless steel has both stainless property and corrosion resistance due to the formation of a chromium-rich oxide film (passivation film) on the surface thereof, which are opposite. Stainless steel is classified into martensite type, austenite type, ferrite type and duplex stainless steel according to the tissue structure at room temperature, basically classified into two systems of chromium stainless steel and chromium nickel stainless steel according to the main chemical components, nitric acid resistant stainless steel, sulfuric acid resistant stainless steel, seawater resistant stainless steel and the like according to the purposes, pitting resistant stainless steel, stress corrosion resistant stainless steel, intercrystalline corrosion resistant stainless steel and the like according to the corrosion resistant types, and classified into nonmagnetic stainless steel, free-cutting stainless steel, low-temperature stainless steel, high-strength stainless steel and the like according to the functional characteristics. Stainless steel has a series of characteristics such as excellent corrosion resistance, formability, compatibility, toughness in a wide temperature range and the like, so that the stainless steel is widely applied to the industries such as heavy industry, light industry, living goods industry, architectural decoration and the like.
The austenitic stainless steel is stainless steel having an austenitic structure at normal temperature, has a stable austenitic structure when the steel contains about 18% of Cr, 8-10% of Ni and about 0.1% of C, and comprises famous 18Cr-8Ni steel and high Cr-Ni series steel developed by increasing the contents of Cr and Ni and adding elements such as Mo, Cu, Si, Nb, Ti and the like on the basis of the above. Austenitic stainless steel is nonmagnetic and has high toughness and plasticity, but has low strength, cannot be strengthened by phase transformation, can be strengthened only by cold working, and has good free-cutting property if elements such as S, Ca, Se, Te and the like are added. The high-silicon austenitic stainless steel has good corrosion resistance to concentrated nitric acid, and is widely applied in various industries due to comprehensive and good comprehensive performance of the austenitic stainless steel. The austenitic stainless steel has good production process performance, and particularly, the chromium-nickel austenitic stainless steel can be used for smoothly producing plates, pipes, belts, wires, bars, forgings and castings with various common specifications by adopting a conventional means for producing special steel. Because of the high content of alloy elements (especially chromium) and low carbon content, the stainless steel is produced in large batch by adopting an electric arc furnace Argon Oxygen Decarburization (AOD) or vacuum deoxidation decarburization (VOD) method, and for high-grade small-batch products, the stainless steel can be smelted by adopting a vacuum or non-vacuum non-induction furnace and is remelted by electric slag if necessary. The prior austenite has low wear resistance, is inevitably worn with external substances in the using process and is easy to be seriously worn, and if the wear resistance can be improved, the service life of the austenite can be further prolonged, so that the austenite stainless steel and the preparation method thereof are needed.
Disclosure of Invention
The austenitic stainless steel prepared from chromium, nickel, carbon, molybdenum, copper, silicon, niobium, titanium and glass fibers has good insulation property, strong heat resistance, good corrosion resistance and high mechanical strength, and the spraying liquid prepared by mixing and stirring the powder formed by grinding iron, carbon fibers, aluminum oxide and copper oxide with epoxy resin and colloidal graphite powder has the properties of high strength, corrosion resistance and strong wear resistance, is uniformly sprayed on a casting, and is tightly wrapped on the surface of the casting after being solidified, so that the wear resistance, the hardness and the service life of the prepared austenitic stainless steel are effectively improved.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: the austenitic stainless steel comprises, by weight, 18-20 parts of chromium, 8-10 parts of nickel, 0.1-0.3 part of carbon, 1-3 parts of molybdenum, 0.1-0.4 part of copper, 0.02-0.06 part of silicon, 0.02-0.05 part of niobium, 0.4-0.8 part of titanium, 2-4 parts of iron, 8-16 parts of glass fiber, 10-14 parts of carbon fiber, 4-10 parts of aluminum oxide and 8-12 parts of copper oxide, and the used auxiliary materials comprise, by weight, 2-8 parts of epoxy resin and 2-8 parts of colloidal graphite powder.
Further, the used raw materials (in parts by weight) comprise 18 parts of chromium, 8 parts of nickel, 0.1 part of carbon, 1 part of molybdenum, 0.1 part of copper, 0.02 part of silicon, 0.02 part of niobium, 0.4 part of titanium, 2 parts of iron, 8 parts of glass fiber, 10 parts of carbon fiber, 4 parts of aluminum oxide and 8 parts of copper oxide, and the used auxiliary materials (in parts by weight) comprise 2 parts of epoxy resin and 2 parts of colloidal graphite powder.
Further, the used raw materials (in parts by weight) comprise 19 parts of chromium, 9 parts of nickel, 0.2 part of carbon, 2 parts of molybdenum, 0.25 part of copper, 0.04 part of silicon, 0.35 part of niobium, 0.6 part of titanium, 3 parts of iron, 12 parts of glass fiber, 12 parts of carbon fiber, 7 parts of aluminum oxide and 10 parts of copper oxide, and the used auxiliary materials (in parts by weight) comprise 5 parts of epoxy resin and 5 parts of colloidal graphite powder.
Further, the used raw materials (in parts by weight) comprise 20 parts of chromium, 10 parts of nickel, 0.3 part of carbon, 3 parts of molybdenum, 0.4 part of copper, 0.06 part of silicon, 0.05 part of niobium, 0.8 part of titanium, 4 parts of iron, 16 parts of glass fiber, 14 parts of carbon fiber, 10 parts of aluminum oxide and 12 parts of copper oxide, and the used auxiliary materials (in parts by weight) comprise 8 parts of epoxy resin and 8 parts of colloidal graphite powder.
The invention also comprises a preparation method of the austenitic stainless steel, which comprises the following specific steps:
s1, weighing raw materials, then putting chromium, nickel, carbon, molybdenum, copper, silicon, niobium, titanium and glass fibers into a ball mill for mixing, and then putting into a heating furnace for smelting to obtain a smelting solution;
s2, putting the smelting liquid into a vacuum degassing furnace for vacuum degassing;
s3, pouring the smelting liquid into a mold, cooling and forming into a casting, and then putting the casting into a furnace for heating and preserving heat;
s4, putting iron, carbon fiber, aluminum oxide and copper oxide into a ball mill, grinding and mixing to obtain mixed powder, adding epoxy resin, colloidal graphite powder and a proper amount of water into the mixed powder, and uniformly stirring to obtain a spraying liquid;
and S5, putting the spraying liquid into a spray gun, and then uniformly spraying the spraying liquid on the formed casting to obtain the austenitic stainless steel.
Further, in step S1, the ball mill mixing is carried out for 10-16h, the temperature of the heating furnace is 1200-1600 ℃, and the smelting time is 1-2 h.
Further, the oxygen content of the molten metal after vacuum degassing in step S2 is 10 to 20ppm, and the hydrogen content is 0.5 to 3 ppm.
Further, in the step S3, the heating temperature of the cast product in the furnace is 1000-1200 ℃, the heating time is 1-2h, and the heat preservation time is 0.5-1 h.
Further, the ball mill is ground and mixed for 14 to 20 hours in step S4.
The embodiment of the invention has the following advantages:
the austenitic stainless steel prepared from chromium, nickel, carbon, molybdenum, copper, silicon, niobium, titanium and glass fibers has the advantages of good insulation property, strong heat resistance, good corrosion resistance and high mechanical strength, and the spraying liquid prepared by mixing and stirring the powder ground by iron, carbon fibers, aluminum oxide and copper oxide with epoxy resin and colloidal graphite powder has the properties of high strength, corrosion resistance and strong wear resistance, is uniformly sprayed on a casting, and is tightly wrapped on the surface of the casting after the coating is solidified, so that the wear resistance, hardness and service life of the prepared austenitic stainless steel are effectively improved, and the austenitic stainless steel can be widely applied in various industries.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention provides austenitic stainless steel, which comprises, by weight, 18-20 parts of chromium, 8-10 parts of nickel, 0.1-0.3 part of carbon, 1-3 parts of molybdenum, 0.1-0.4 part of copper, 0.02-0.06 part of silicon, 0.02-0.05 part of niobium, 0.4-0.8 part of titanium, 2-4 parts of iron, 8-16 parts of glass fiber, 10-14 parts of carbon fiber, 4-10 parts of aluminum oxide and 8-12 parts of copper oxide, and the used auxiliary materials comprise, by weight, 2-8 parts of epoxy resin and 2-8 parts of colloidal graphite powder.
And specifically in this embodiment: the raw materials comprise (by weight parts) 18 parts of chromium, 8 parts of nickel, 0.1 part of carbon, 1 part of molybdenum, 0.1 part of copper, 0.02 part of silicon, 0.02 part of niobium, 0.4 part of titanium, 2 parts of iron, 8 parts of glass fiber, 10 parts of carbon fiber, 4 parts of aluminum oxide and 8 parts of copper oxide, and the used auxiliary materials comprise (by weight parts) 2 parts of epoxy resin and 2 parts of colloidal graphite powder.
The preparation method of the austenitic stainless steel comprises the following specific steps:
s1, weighing raw materials, then putting chromium, nickel, carbon, molybdenum, copper, silicon, niobium, titanium and glass fibers into a ball mill to mix for 10 hours, and then putting into a heating furnace to smelt for 1 hour at 1200 ℃ to obtain a smelting solution;
s2, putting the smelting liquid into a vacuum degassing furnace for vacuum degassing, wherein the oxygen content and the hydrogen content of the smelting liquid after vacuum degassing are respectively 10ppm and 0.5 ppm;
s3, pouring the smelting solution into a mold, cooling and forming into a casting, then putting the casting into a furnace, heating at 1000 ℃ for 1h, and then preserving heat for 0.5 h;
s4, putting iron, carbon fiber, aluminum oxide and copper oxide into a ball mill, grinding and mixing for 14h to obtain mixed powder, adding epoxy resin, colloidal graphite powder and a proper amount of water into the mixed powder, and uniformly stirring to obtain a spraying liquid;
and S5, putting the spraying liquid into a spray gun, and then uniformly spraying the spraying liquid on the formed casting to obtain the austenitic stainless steel.
Example 2:
the invention provides austenitic stainless steel, which comprises, by weight, 18-20 parts of chromium, 8-10 parts of nickel, 0.1-0.3 part of carbon, 1-3 parts of molybdenum, 0.1-0.4 part of copper, 0.02-0.06 part of silicon, 0.02-0.05 part of niobium, 0.4-0.8 part of titanium, 2-4 parts of iron, 8-16 parts of glass fiber, 10-14 parts of carbon fiber, 4-10 parts of aluminum oxide and 8-12 parts of copper oxide, and the used auxiliary materials comprise, by weight, 2-8 parts of epoxy resin and 2-8 parts of colloidal graphite powder.
And specifically in this embodiment: the raw materials comprise (by weight parts) chromium 19, nickel 9, carbon 0.2, molybdenum 2, copper 0.25, silicon 0.04, niobium 0.35, titanium 0.6, iron 3, glass fiber 12, carbon fiber 12, aluminum oxide 7 and copper oxide 10, and the auxiliary materials comprise (by weight parts) epoxy resin 5 and colloidal graphite powder 5.
The preparation method of the austenitic stainless steel comprises the following specific steps:
s1, weighing raw materials, putting chromium, nickel, carbon, molybdenum, copper, silicon, niobium, titanium and glass fibers into a ball mill, mixing for 12 hours, and then putting into a heating furnace, and smelting for 1.25 hours at 1350 ℃ to obtain a smelting solution;
s2, putting the smelting liquid into a vacuum degassing furnace for vacuum degassing, wherein the oxygen content and the hydrogen content of the smelting liquid after vacuum degassing are respectively 13ppm and 1 ppm;
s3, pouring the smelting solution into a mold, cooling and forming into a casting, then putting the casting into a furnace, heating at 1050 ℃ for 1.25h, and then preserving heat for 0.65 h;
s4, putting iron, carbon fiber, aluminum oxide and copper oxide into a ball mill, grinding and mixing for 16h to obtain mixed powder, adding epoxy resin, colloidal graphite powder and a proper amount of water into the mixed powder, and uniformly stirring to obtain a spraying liquid;
and S5, putting the spraying liquid into a spray gun, and then uniformly spraying the spraying liquid on the formed casting to obtain the austenitic stainless steel.
Example 3:
the invention provides austenitic stainless steel, which comprises, by weight, 18-20 parts of chromium, 8-10 parts of nickel, 0.1-0.3 part of carbon, 1-3 parts of molybdenum, 0.1-0.4 part of copper, 0.02-0.06 part of silicon, 0.02-0.05 part of niobium, 0.4-0.8 part of titanium, 2-4 parts of iron, 8-16 parts of glass fiber, 10-14 parts of carbon fiber, 4-10 parts of aluminum oxide and 8-12 parts of copper oxide, and the used auxiliary materials comprise, by weight, 2-8 parts of epoxy resin and 2-8 parts of colloidal graphite powder.
And specifically in this embodiment: the raw materials comprise (by weight parts) 20 parts of chromium, 10 parts of nickel, 0.3 part of carbon, 3 parts of molybdenum, 0.4 part of copper, 0.06 part of silicon, 0.05 part of niobium, 0.8 part of titanium, 4 parts of iron, 16 parts of glass fiber, 14 parts of carbon fiber, 10 parts of aluminum oxide and 12 parts of copper oxide, and the used auxiliary materials comprise (by weight parts) 8 parts of epoxy resin and 8 parts of colloidal graphite powder.
The preparation method of the austenitic stainless steel comprises the following specific steps:
s1, weighing raw materials, then putting chromium, nickel, carbon, molybdenum, copper, silicon, niobium, titanium and glass fibers into a ball mill to mix for 14h, and then putting into a heating furnace to be smelted for 1.75h at 1450 ℃ to obtain a smelting solution;
s2, putting the smelting liquid into a vacuum degassing furnace for vacuum degassing, wherein the oxygen content and the hydrogen content of the smelting liquid after vacuum degassing are 16ppm and 2ppm respectively;
s3, pouring the smelting solution into a mold, cooling and forming into a casting, then putting the casting into a furnace, heating at 1150 ℃ for 1.75h, and then preserving heat for 0.8 h;
s4, putting iron, carbon fiber, aluminum oxide and copper oxide into a ball mill, grinding and mixing for 18h to obtain mixed powder, adding epoxy resin, colloidal graphite powder and a proper amount of water into the mixed powder, and uniformly stirring to obtain a spraying liquid;
and S5, putting the spraying liquid into a spray gun, and then uniformly spraying the spraying liquid on the formed casting to obtain the austenitic stainless steel.
Example 4:
the invention provides austenitic stainless steel, which comprises, by weight, 18-20 parts of chromium, 8-10 parts of nickel, 0.1-0.3 part of carbon, 1-3 parts of molybdenum, 0.1-0.4 part of copper, 0.02-0.06 part of silicon, 0.02-0.05 part of niobium, 0.4-0.8 part of titanium, 2-4 parts of iron, 8-16 parts of glass fiber, 10-14 parts of carbon fiber, 4-10 parts of aluminum oxide and 8-12 parts of copper oxide, and the used auxiliary materials comprise, by weight, 2-8 parts of epoxy resin and 2-8 parts of colloidal graphite powder.
And specifically in this embodiment: the raw materials comprise (by weight parts) chromium 19, nickel 9, carbon 0.2, molybdenum 2, copper 0.25, silicon 0.04, niobium 0.35, titanium 0.6, iron 3, glass fiber 12, carbon fiber 12, aluminum oxide 7 and copper oxide 10, and the auxiliary materials comprise (by weight parts) epoxy resin 5 and colloidal graphite powder 5.
The preparation method of the austenitic stainless steel comprises the following specific steps:
s1, weighing raw materials, then putting chromium, nickel, carbon, molybdenum, copper, silicon, niobium and titanium into a ball mill to mix for 16h, and then putting into a heating furnace to smelt for 2h at 1600 ℃ to obtain a smelting solution;
s2, putting the smelting liquid into a vacuum degassing furnace for vacuum degassing, wherein the oxygen content and the hydrogen content of the smelting liquid after vacuum degassing are respectively 20ppm and 3 ppm;
s3, pouring the smelting liquid into a mold, cooling and forming into a casting, then putting the casting into a furnace, heating at 1200 ℃ for 2h, and then preserving heat for 1 h;
s4, putting iron, glass fiber, carbon fiber, aluminum oxide and copper oxide into a ball mill, grinding and mixing for 20 hours to obtain mixed powder, adding epoxy resin, colloidal graphite powder and a proper amount of water into the mixed powder, and uniformly stirring to obtain a spraying liquid;
and S5, putting the spraying liquid into a spray gun, and then uniformly spraying the spraying liquid on the formed casting to obtain the austenitic stainless steel.
Example 5:
the mechanical properties of 120 austenitic stainless steels prepared in the above examples 1 to 4 were measured, and 30 austenitic stainless steels were divided into one group, and the following data were obtained after the measurements:
as can be seen from the above table, the raw materials in example 2 have a moderate mixing ratio, the strength of the prepared austenitic stainless steel is obviously improved while the elongation is ensured, and the austenitic stainless steel has excellent yield strength and tensile strength, and the wear resistance of the austenitic stainless steel is obviously improved due to the coating liquid coated on the austenitic stainless steel, so that the service life of the austenitic stainless steel is obviously prolonged, and the austenitic stainless steel can be widely applied to various industries.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. An austenitic stainless steel, characterized by: the raw materials (by weight portion) include 18-20 parts of chromium, 8-10 parts of nickel, 0.1-0.3 part of carbon, 1-3 parts of molybdenum, 0.1-0.4 part of copper, 0.02-0.06 part of silicon, 0.02-0.05 part of niobium, 0.4-0.8 part of titanium, 2-4 parts of iron, 8-16 parts of glass fiber, 10-14 parts of carbon fiber, 4-10 parts of aluminum oxide and 8-12 parts of copper oxide, and the auxiliary materials (by weight portion) include 2-8 parts of epoxy resin and 2-8 parts of colloidal graphite powder.
2. An austenitic stainless steel according to claim 1, characterized in that: the raw materials comprise (by weight parts) 18 parts of chromium, 8 parts of nickel, 0.1 part of carbon, 1 part of molybdenum, 0.1 part of copper, 0.02 part of silicon, 0.02 part of niobium, 0.4 part of titanium, 2 parts of iron, 8 parts of glass fiber, 10 parts of carbon fiber, 4 parts of aluminum oxide and 8 parts of copper oxide, and the used auxiliary materials comprise (by weight parts) 2 parts of epoxy resin and 2 parts of colloidal graphite powder.
3. An austenitic stainless steel according to claim 1, characterized in that: the raw materials comprise (by weight parts) chromium 19, nickel 9, carbon 0.2, molybdenum 2, copper 0.25, silicon 0.04, niobium 0.35, titanium 0.6, iron 3, glass fiber 12, carbon fiber 12, aluminum oxide 7 and copper oxide 10, and the auxiliary materials comprise (by weight parts) epoxy resin 5 and colloidal graphite powder 5.
4. An austenitic stainless steel according to claim 1, characterized in that: the raw materials comprise (by weight parts) 20 parts of chromium, 10 parts of nickel, 0.3 part of carbon, 3 parts of molybdenum, 0.4 part of copper, 0.06 part of silicon, 0.05 part of niobium, 0.8 part of titanium, 4 parts of iron, 16 parts of glass fiber, 14 parts of carbon fiber, 10 parts of aluminum oxide and 12 parts of copper oxide, and the used auxiliary materials comprise (by weight parts) 8 parts of epoxy resin and 8 parts of colloidal graphite powder.
5. An austenitic stainless steel according to any of claims 1-4, characterized in that: the method also comprises a preparation method of the austenitic stainless steel, and the specific steps are as follows:
s1, weighing raw materials, then putting chromium, nickel, carbon, molybdenum, copper, silicon, niobium, titanium and glass fibers into a ball mill for mixing, and then putting into a heating furnace for smelting to obtain a smelting solution;
s2, putting the smelting liquid into a vacuum degassing furnace for vacuum degassing;
s3, pouring the smelting liquid into a mold, cooling and forming into a casting, and then putting the casting into a furnace for heating and preserving heat;
s4, putting iron, carbon fiber, aluminum oxide and copper oxide into a ball mill, grinding and mixing to obtain mixed powder, adding epoxy resin, colloidal graphite powder and a proper amount of water into the mixed powder, and uniformly stirring to obtain a spraying liquid;
and S5, putting the spraying liquid into a spray gun, and then uniformly spraying the spraying liquid on the formed casting to obtain the austenitic stainless steel.
6. The method of making an austenitic stainless steel of claim 5, wherein: in the step S1, the ball mill is mixed for 10-16h, the temperature of the heating furnace is 1200-1600 ℃, and the smelting time is 1-2 h.
7. The method of making an austenitic stainless steel of claim 5, wherein: in step S2, the oxygen content of the vacuum degassed molten liquid is 10-20ppm, and the hydrogen content is 0.5-3 ppm.
8. The method of making an austenitic stainless steel of claim 5, wherein: in the step S3, the heating temperature of the cast in the furnace is 1000-.
9. The method of making an austenitic stainless steel of claim 5, wherein: the ball mill is ground and mixed for 14-20h in step S4.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52117227A (en) * | 1976-03-29 | 1977-10-01 | Kawasaki Steel Co | Good working austenitic stainless steel |
| CN1123562A (en) * | 1994-01-26 | 1996-05-29 | 川崎制铁株式会社 | Method of manufacturing stainless steel sheet of high corrosion resistance |
| CN1357646A (en) * | 2000-12-04 | 2002-07-10 | 日新制钢株式会社 | High strenght austenic stainless steel belt with excellent straightness and its making process |
| CN104087832A (en) * | 2014-06-06 | 2014-10-08 | 马鞍山市恒毅机械制造有限公司 | Method of preparing automobile wheel hub bearing unit from niobium microalloyed steel |
| CN104911487A (en) * | 2014-03-15 | 2015-09-16 | 紫旭盛业（昆山）金属科技有限公司 | Die steel |
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2020
- 2020-05-09 CN CN202010385508.3A patent/CN111593277A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52117227A (en) * | 1976-03-29 | 1977-10-01 | Kawasaki Steel Co | Good working austenitic stainless steel |
| CN1123562A (en) * | 1994-01-26 | 1996-05-29 | 川崎制铁株式会社 | Method of manufacturing stainless steel sheet of high corrosion resistance |
| CN1357646A (en) * | 2000-12-04 | 2002-07-10 | 日新制钢株式会社 | High strenght austenic stainless steel belt with excellent straightness and its making process |
| CN104911487A (en) * | 2014-03-15 | 2015-09-16 | 紫旭盛业（昆山）金属科技有限公司 | Die steel |
| CN104087832A (en) * | 2014-06-06 | 2014-10-08 | 马鞍山市恒毅机械制造有限公司 | Method of preparing automobile wheel hub bearing unit from niobium microalloyed steel |
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