CN115161538A - Casting method of high-strength casting - Google Patents
Casting method of high-strength casting Download PDFInfo
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- CN115161538A CN115161538A CN202110354349.5A CN202110354349A CN115161538A CN 115161538 A CN115161538 A CN 115161538A CN 202110354349 A CN202110354349 A CN 202110354349A CN 115161538 A CN115161538 A CN 115161538A
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- 238000005266 casting Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 68
- 238000003723 Smelting Methods 0.000 claims abstract description 44
- 229910052742 iron Inorganic materials 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 18
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 18
- 239000011651 chromium Substances 0.000 claims abstract description 18
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 18
- 239000010936 titanium Substances 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- 239000002054 inoculum Substances 0.000 claims abstract description 16
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 16
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 16
- 239000011574 phosphorus Substances 0.000 claims abstract description 16
- 239000010703 silicon Substances 0.000 claims abstract description 16
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 16
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 16
- 239000011593 sulfur Substances 0.000 claims abstract description 16
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 11
- 239000010439 graphite Substances 0.000 claims abstract description 11
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005275 alloying Methods 0.000 claims description 5
- 238000007872 degassing Methods 0.000 claims description 5
- 238000006477 desulfuration reaction Methods 0.000 claims description 5
- 230000023556 desulfurization Effects 0.000 claims description 5
- 230000003009 desulfurizing effect Effects 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 238000007670 refining Methods 0.000 abstract description 4
- 241001584785 Anavitrinella pampinaria Species 0.000 abstract description 3
- 229910001060 Gray iron Inorganic materials 0.000 abstract description 3
- 229910001567 cementite Inorganic materials 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract description 3
- 238000002425 crystallisation Methods 0.000 abstract description 3
- 230000008025 crystallization Effects 0.000 abstract description 3
- 238000011081 inoculation Methods 0.000 abstract description 3
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract description 3
- 229910001562 pearlite Inorganic materials 0.000 abstract description 3
- 238000005204 segregation Methods 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- -1 iron-chromium-aluminum Chemical compound 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction 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
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention relates to the technical field of castings and discloses a casting method of a high-strength casting, which comprises the following steps of taking 1-3 parts of silicon, 2-5 parts of copper, 0.1-0.5 part of titanium, 60-65 parts of iron, 3-3.2 parts of carbon, 0.75-0.95 part of manganese, 0.1 part of phosphorus, 0.08 part of sulfur, 0.08 part of chromium, 1-3 parts of carburant and 0.4-0.5 part of inoculant for later use; preheating a smelting furnace to 300 ℃, adding 1-3 parts of carburant and 60-65 parts of iron, and melting the carburant and the iron to obtain molten iron. According to the casting method of the high-strength casting, after inoculation treatment, crystallization conditions for producing super-cooled graphite and cementite are eliminated, so that the graphite is fine and is uniformly distributed; fine and uniform crystal grains can be obtained on the large section, so that the segregation phenomenon is avoided; the thick wall and the thin wall can obtain fine pearlite matrix, so that the strength of the cast iron is greatly improved, the strength and the toughness are superior to those of common gray cast iron, the strength performance of a casting is further improved by performing external refining on the metal, the quality of the steel can be improved by the external refining, the smelting time is shortened, the process is optimized, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of castings, in particular to a casting method of a high-strength casting.
Background
The casting is a metal molding object obtained by various casting methods, namely, the smelted liquid metal is poured into a pre-prepared casting mould by pouring, injection, suction or other casting methods, and after cooling, the casting is ground and other subsequent processing means, and the object with certain shape, size and performance is obtained.
The existing castings are widely applied and have the advantage of convenient use, and although the iron filings generated by machining are utilized to smelt and manufacture the castings aiming at the existing castings, the difficulty of adjusting chemical components in the smelting process can be reduced, and the production cost is reduced, but the castings with high requirements on strength and hardness of the castings cannot be cast due to the characteristics of the iron filings, so that the social requirements are difficult to meet, and the casting method of the high-strength castings is provided to solve the problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a casting method of a high-strength casting, which has the advantage of high hardness and solves the problem that although the existing casting is manufactured by smelting scrap iron generated by machining, the difficulty of adjusting chemical components in the smelting process can be reduced and the production cost is reduced, but the casting with high requirements on the strength and the hardness of the casting cannot be cast due to the characteristics of the scrap iron.
(II) technical scheme
In order to achieve the purpose of high hardness, the invention provides the following technical scheme: a method of casting a high strength casting comprising the steps of: a casting method of a high-strength casting comprises the following steps:
1) Taking 1-3 parts of silicon, 2-5 parts of copper, 0.1-0.5 part of titanium, 60-65 parts of iron, 3-3.2 parts of carbon, 0.75-0.95 part of manganese, 0.1 part of phosphorus, 0.08 part of sulfur, 0.08 part of chromium, 1-3 parts of carburant and 0.4-0.5 part of inoculant for later use;
2) Preheating a smelting furnace to 300 ℃, adding 1-3 parts of carburant and 60-65 parts of iron, and melting the carburant and the iron to obtain molten iron;
3) Heating a smelting furnace to 760-800 ℃, adding 1-3 parts of silicon, 2-5 parts of copper, 0.1-0.5 part of titanium, 3-3.2 parts of carbon, 0.75-0.95 part of manganese, 0.1 part of phosphorus, 0.08 part of sulfur and 0.08 part of chromium into the molten iron in the step 2), and smelting to obtain smelting water;
4) Continuously preserving the temperature of the smelting furnace at 750-780 ℃ for 5-10min, heating the smelting furnace to 1300-1400 ℃ after preserving the temperature, and then carrying out dephosphorization, desulfurization, impurity removal and main alloying on the smelting water in the step 3) to obtain primary molten steel;
5) Degassing, deoxidizing and desulfurizing the primary molten steel obtained in the step 4) in a container in vacuum, inert gas or reducing atmosphere, removing impurities and finely adjusting components to obtain refined molten steel;
6) Before pouring and discharging, continuously keeping the temperature of the refined molten steel obtained in the step 5) at 1400 ℃, and adding 0.4-0.5 part of inoculant to obtain pouring molten steel;
7) Preheating a prepared mould, pouring the pouring molten steel obtained in the step 6) into the preheated mould for forming, and cooling to 5-8h to obtain a casting.
Preferably, the carburant isbase:Sub>A graphite carburant, and the inoculant is INOFSBA-A.
Preferably, the preheating time in the step 2) is 2-3h, and the silicon, the copper, the titanium, the carbon, the manganese, the phosphorus, the sulfur and the chromium in the step 2) are all added in sequence every 30 s.
Preferably, the heat preservation time of the smelting furnace in the step) is 5-10min.
(III) advantageous effects
Compared with the prior art, the invention provides a casting method of a high-strength casting, which has the following beneficial effects:
1. according to the casting method of the high-strength casting, the chromium is added, so that the high-temperature resistance strength of the casting is higher than that of an iron-chromium-aluminum alloy, the casting is not easy to deform in high-temperature use, the plasticity after long-term use is good, the magnetism is not generated, the casting has the characteristics of large resistivity, thermal fatigue resistance, oxidation resistance, good high-temperature shape stability and the like, and the titanium is added, so that the casting has the corrosion resistance, the thermal resistance, the low-temperature resistance, the anti-damping performance and the high-strength performance.
2. According to the casting method of the high-strength casting, after inoculation treatment, crystallization conditions for producing super-cooled graphite and cementite are eliminated, so that the graphite is fine and is uniformly distributed; fine and uniform crystal grains can be obtained on the large section, so that the segregation phenomenon is avoided; the thick wall and the thin wall can obtain fine pearlite matrix, so that the strength of the cast iron is greatly improved, the strength and the toughness of the cast iron are superior to those of common gray cast iron, and the strength performance of the cast is further improved by performing secondary refining on the metal.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The first embodiment is as follows: a casting method of a high-strength casting comprises the following steps:
1) Taking 1 part of silicon, 2 parts of copper, 0.1 part of titanium, 60 parts of iron, 3 parts of carbon, 0.75 part of manganese, 0.1 part of phosphorus, 0.08 part of sulfur, 0.08 part of chromium, 1 part of carburant and 0.4 part of inoculant for later use, wherein the carburant is graphite carburant, and the inoculant is INOFSBA-A;
2) Preheating a smelting furnace to 300 ℃ for 2 hours, adding 1 part of carburant and 60 parts of iron, and melting the carburant and the iron to obtain molten iron;
3) Heating a smelting furnace to 760 ℃, adding 1 part of silicon, 2 parts of copper, 0.1 part of titanium, 3 parts of carbon, 0.75 part of manganese, 0.1 part of phosphorus, 0.08 part of sulfur and 0.08 part of chromium into the molten iron in the step 2), and smelting to obtain smelting water, wherein the silicon, the copper, the titanium, the carbon, the manganese, the phosphorus, the sulfur and the chromium are sequentially added every 30 s;
4) Continuously keeping the temperature of the smelting furnace at 750 ℃, keeping the temperature of the smelting furnace for 5min, heating the smelting furnace to 1300 ℃ after heat preservation, and then carrying out dephosphorization, desulfurization, impurity removal and main alloying on the smelting water obtained in the step 3) to obtain primary molten steel;
5) Degassing, deoxidizing and desulfurizing the primary molten steel obtained in the step 4) in a container in vacuum, inert gas or reducing atmosphere, removing impurities and finely adjusting components to obtain refined molten steel;
6) Before pouring and discharging, continuously keeping the temperature of the refined molten steel obtained in the step 5) at 1400 ℃, and adding 0.4 part of inoculant to obtain pouring molten steel;
7) Preheating the prepared mould, pouring the pouring molten steel obtained in the step 6) into the preheated mould for forming, and cooling to 5 to obtain a casting.
Example two: a method of casting a high strength casting comprising the steps of:
1) Taking 2 parts of silicon, 3 parts of copper, 0.2 part of titanium, 62 parts of iron, 3.1 parts of carbon, 0.85 part of manganese, 0.1 part of phosphorus, 0.08 part of sulfur, 0.08 part of chromium, 2 parts of carburant and 0.45 part of inoculant for later use, wherein the carburant is graphite carburant, and the inoculant is INOFSBA-A;
2) Preheating a smelting furnace to 300 ℃ for 2.5h, adding 2 parts of carburant and 62 parts of iron, and melting the carburant and the iron to obtain molten iron;
3) Heating a smelting furnace to 780 ℃, adding 2 parts of silicon, 3 parts of copper, 0.2 part of titanium, 62 parts of iron, 3.1 parts of carbon, 0.85 part of manganese, 0.1 part of phosphorus, 0.08 part of sulfur and 0.08 part of chromium into the molten iron in the step 2), and smelting to obtain smelting water, wherein the silicon, the copper, the titanium, the carbon, the manganese, the phosphorus, the sulfur and the chromium are sequentially added every 30 s;
4) Continuously keeping the temperature of a smelting furnace at 760 ℃, keeping the temperature of the smelting furnace for 8min, heating the smelting furnace to 1350 ℃ after heat preservation, and then carrying out dephosphorization, desulfurization, impurity removal and main alloying on the smelting water obtained in the step 3) to obtain primary molten steel;
5) Degassing, deoxidizing and desulfurizing the primary molten steel obtained in the step 4) in a container in vacuum, inert gas or reducing atmosphere, removing impurities and finely adjusting components to obtain refined molten steel;
6) Before pouring and discharging, continuously keeping the temperature of the refined molten steel obtained in the step 5) at 1400 ℃, and adding 0.45 part of inoculant to obtain pouring molten steel;
7) Preheating the prepared mould, pouring the pouring molten steel obtained in the step 6) into the preheated mould for molding, and cooling to 6 hours to obtain a casting.
Example three: a method of casting a high strength casting comprising the steps of:
1) Taking 3 parts of silicon, 5 parts of copper, 5 parts of titanium, 65 parts of iron, 3.2 parts of carbon, 0.95 part of manganese, 0.1 part of phosphorus, 0.08 part of sulfur, 0.08 part of chromium, 3 parts ofbase:Sub>A carburant and 0.5 part of an inoculant for later use, wherein the carburant isbase:Sub>A graphite carburant, and the inoculant is INOFSBA-A;
2) Preheating a smelting furnace to 300 ℃ for 3 hours, adding 3 parts of carburant and 65 parts of iron, and melting the carburant and the iron to obtain molten iron;
3) Heating a smelting furnace to 800 ℃, adding 3 parts of silicon, 5 parts of copper, 0.5 part of titanium, 3.2 parts of carbon, 0.95 part of manganese, 0.1 part of phosphorus, 0.08 part of sulfur and 0.08 part of chromium into the molten iron in the step 2), and smelting to obtain smelting water, wherein the silicon, the copper, the titanium, the carbon, the manganese, the phosphorus, the sulfur and the chromium are sequentially added every 30 s;
4) Continuously preserving the temperature of the smelting furnace at 780 ℃ for 10min, heating the smelting furnace to 1400 ℃ after heat preservation, and then carrying out dephosphorization, desulfurization, impurity removal and main alloying on the smelting water obtained in the step 3) to obtain primary molten steel;
5) Degassing, deoxidizing and desulfurizing the primary molten steel obtained in the step 4) in a container in vacuum, inert gas or reducing atmosphere, removing impurities and finely adjusting components to obtain refined molten steel;
6) Before pouring and tapping, continuously preserving the temperature of the refined molten steel obtained in the step 5) at 1400 ℃, and adding 0.5 part of inoculant to obtain pouring molten steel;
7) Preheating the prepared mould, pouring the pouring molten steel obtained in the step 6) into the preheated mould for molding, and cooling to 8 hours to obtain a casting.
The invention has the beneficial effects that: the high-temperature strength of the casting is higher than that of iron-chromium-aluminum alloy by adding chromium, the casting is not easy to deform in high-temperature use, the plasticity is good and non-magnetic after long-term use, the casting has the characteristics of large resistivity, thermal fatigue resistance, oxidation resistance, good high-temperature shape stability and the like, and the casting has the corrosion resistance, the heat resistance, the low-temperature resistance, the anti-damping performance and the high-strength performance by adding titanium.
In addition, after inoculation treatment, the crystallization conditions for producing the super-cooled graphite and cementite are eliminated, so that the graphite is fine and is uniformly distributed; fine and uniform crystal grains can be obtained on the large section, so that the segregation phenomenon is avoided; the thick wall and the thin wall can obtain fine pearlite matrix, so that the strength of the cast iron is greatly improved, the strength and the toughness are superior to those of common gray cast iron, and the strength performance of the casting is further improved by carrying out external refining on the metal.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A casting method of a high-strength casting, characterized by comprising the steps of:
1) Taking 1-3 parts of silicon, 2-5 parts of copper, 0.1-0.5 part of titanium, 60-65 parts of iron, 3-3.2 parts of carbon, 0.75-0.95 part of manganese, 0.1 part of phosphorus, 0.08 part of sulfur, 0.08 part of chromium, 1-3 parts of carburant and 0.4-0.5 part of inoculant for later use;
2) Preheating a smelting furnace to 300 ℃, adding 1-3 parts of carburant and 60-65 parts of iron, and melting the carburant and the iron to obtain molten iron;
3) Heating a smelting furnace to 760-800 ℃, adding 1-3 parts of silicon, 2-5 parts of copper, 0.1-0.5 part of titanium, 3-3.2 parts of carbon, 0.75-0.95 part of manganese, 0.1 part of phosphorus, 0.08 part of sulfur and 0.08 part of chromium into the molten iron in the step 2), and smelting to obtain smelting water;
4) Continuously preserving the temperature of a smelting furnace at 750-780 ℃, heating the smelting furnace to 1300-1400 ℃ after preserving the temperature, and then carrying out dephosphorization, desulfurization, impurity removal and main alloying on the smelting water in the step 3) to obtain primary molten steel;
5) Degassing, deoxidizing and desulfurizing the primary molten steel obtained in the step 4) in a container in vacuum, inert gas or reducing atmosphere, removing impurities and finely adjusting components to obtain refined molten steel;
6) Before pouring and discharging, continuously keeping the temperature of the refined molten steel obtained in the step 5) at 1400 ℃, and adding 0.4-0.5 part of inoculant to obtain pouring molten steel;
7) Preheating the prepared mould, pouring the pouring molten steel obtained in the step 6) into the preheated mould for molding, and cooling to 5-8h to obtain a casting.
2. The method of castingbase:Sub>A high strength casting according to claim 1, wherein the recarburizing agent isbase:Sub>A graphite recarburizing agent and the inoculant is INOFSBA-base:Sub>A.
3. The casting method of a high-strength casting according to claim 1, wherein the preheating time in the step 2) is 2-3h, and the silicon, copper, titanium, carbon, manganese, phosphorus, sulfur and chromium in the step 2) are sequentially added every 30 s.
4. A casting method of a high strength casting according to claim 1, characterized in that the holding time of the smelting furnace in the step 3) is 5-10min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110354349.5A CN115161538A (en) | 2021-04-01 | 2021-04-01 | Casting method of high-strength casting |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103114238A (en) * | 2013-02-01 | 2013-05-22 | 太仓科博尔精密铸业有限公司 | High-strength and high-hardness gray cast iron material and method for casting same into casting |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114238A (en) * | 2013-02-01 | 2013-05-22 | 太仓科博尔精密铸业有限公司 | High-strength and high-hardness gray cast iron material and method for casting same into casting |
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Application publication date: 20221011 |
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