CN114107684A - Electroslag remelting rolling method for 08AL steel/316 stainless steel - Google Patents
Electroslag remelting rolling method for 08AL steel/316 stainless steel Download PDFInfo
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- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
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- C22B9/18—Electroslag remelting
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- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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Abstract
The invention provides a 08AL steel/316 stainless steel electroslag remelting and rolling method, which adopts an arc striking agent in an electroslag remelting furnace, and the arc striking agent is arranged at a distance of 30-70mm from a port70 percent of CaF is adopted2‑30％Al2O3A slag system; producing a 08AL steel/316 stainless steel composite plate blank with the total thickness of 70 mm; cooling the composite plate blank to room temperature, feeding the composite plate blank into a heating furnace for heating, wherein the heating time is more than or equal to 240min, the heating temperature is 1150-1250 ℃, the temperature of the plate blank taken out of the heating furnace is more than or equal to 1100 ℃, and two-stage rolling control is adopted; for the rolling in the recrystallization region, the rolling passes are reduced, and the rolling pass reduction rate is improved; and prolonging the retention time after rolling, wherein the total reduction rate of the non-recrystallization area is more than 50 percent, the final reduction rate is less than or equal to 5 percent, and the rolled piece is cooled by adopting laminar flow after being taken out of the rolling mill. The interface shear strength of the composite plate is more than or equal to 115MPa, the tensile strength is more than or equal to 325MPa, and the repeated bending times are more than or equal to 7 times.
Description
Technical Field
The invention relates to the technical field of metal-based composite materials, in particular to a 08AL steel/316 stainless steel electroslag remelting rolling method.
Background
Research and preparation of composite materials is an important trend in the development of the material industry in recent years. With the continuous development of science and technology, the requirements of each industry on the comprehensive performance of materials are gradually increased, and a single material cannot meet the requirements of high index and high performance.
The layered metal composite material is a novel material prepared by utilizing a composite technology to realize firm metallurgical bonding of two or more metals with different physical, chemical and mechanical properties on an interface. Although each layer of metal still keeps the respective original characteristics, the physical, chemical and mechanical properties of the layered metal composite material are much better than those of single metal, and the obtained composite plate has comprehensive properties which cannot be possessed by any component. With the technological progress, they are not only increasingly used in a wide range of applications, but also break through the traditional knowledge in the combination and optimized utilization of material properties.
The effective combination of electrical conductivity, thermal conductivity, corrosion resistance and mechanical property not only improves the comprehensive performance of the material, but also provides better conditions for reasonably selecting the material and reducing the cost. Due to its specific properties, bimetallic composite materials are attracting more and more attention, and are widely used in the fields of aviation, aerospace, national defense, traffic, electronics, communication and the like.
The stainless steel laminated plate is one of the most widely used metal laminated plates, and is formed by using corrosion-resistant, heat-resistant and wear-resistant stainless steel as a coating layer and using carbon steel or low alloy steel with relatively high strength and good plastic toughness as a base layer, so that the stainless steel laminated plate is widely applied to industrial production due to good forming processability, mechanical property and corrosion resistance. Stainless steel laminates can be classified into austenitic stainless steel laminates, ferritic stainless steel laminates, duplex stainless steel laminates, martensitic stainless steel laminates, and the like, depending on the material of the stainless steel to be coated. Among them, austenitic stainless steel laminates and ferritic stainless steel laminates are widely used because of their excellent corrosion resistance and low price.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a 08AL steel/316 stainless steel electroslag remelting rolling method, which obtains a more excellent bonding interface microstructure and has high interface strength.
The technical scheme of the invention is as follows: a08 AL steel/316 stainless steel electroslag remelting rolling method comprises the following steps:
s1), adopting an arc striking agent in an electroslag remelting furnace, striking an arc 30-70mm away from a port, and adopting 70 mass percent of CaF2-30％Al2O3The slag system discharges Joule heat from the slag pool in the electrifying process, gradually melts the end of the consumable electrode, converges molten metal into metal droplets, passes through the slag pool, falls into the crystallizer to form a metal molten pool, is rapidly solidified to form a 08AL steel ingot under the water cooling effect, and immediately changes the 316 stainless steel consumable electrode when the thickness of the 08AL steel ingot meets the set requirement; producing a 08AL steel/316 stainless steel composite plate blank with the total thickness of 70 mm;
s2), cooling the composite plate blank to room temperature, checking the quality and the surface of the plate blank, feeding the plate blank into a furnace for heating, heating the plate blank in the heating furnace for more than or equal to 240min at the heating temperature of 1150-1250 ℃, taking the plate blank out of the heating furnace at the temperature of more than or equal to 1100 ℃, and performing two-stage controlled rolling;
for the recrystallization zone rolling, reducing rolling passes under the condition of equipment allowance, and improving the rolling pass reduction rate; and properly prolonging the retention time after rolling to increase the recrystallization quantity of deformed austenite, homogenizing the structure, removing phosphorus under high pressure after being taken out of a heating furnace, wherein the phosphorus removal pressure is more than or equal to 12MPa, performing rough rolling for 1-5 times after phosphorus removal, and the finish rolling inlet temperature is about 900-950 ℃, wherein the reduction rate of 3 times before finish rolling is large, the reduction rate of the final time is less than or equal to 5%, so as to ensure that the thickness is accurate and the plate shape is good, the outlet thickness of a rolling mill is 1.5-6 mm, the finish rolling outlet temperature is 800-850 ℃, performing laminar cooling after a rolled piece is taken out of the rolling mill, the cooling rate is 1-10 ℃/s, the termination temperature of laminar cooling is 550-600 ℃, coiling by a coiling machine, conveying to a heat preservation pit for heat preservation for 6-10 hours, performing heat treatment after rolling, performing selective heat treatment on the rolled composite plate according to actual conditions, and performing flattening, finishing and inspection on a flattening unit.
Preferably, the 08AL steel comprises the following chemical components: 0.05 to 0.08 weight percent of C, less than or equal to 0.05 weight percent of Si, 0.2 to 0.4 weight percent of Mn0.015 weight percent of P, less than 0.010 weight percent of S, 0.025 to 0.06 weight percent of AL, and the balance of Fe and inevitable impurities;
preferably, the chemical composition of the 316 stainless steel is as follows: 0.03 to 0.06wt percent of C, 0.50 to 0.80wt percent of Si, 1.2 to 1.8wt percent of Mn, less than or equal to 0.015wt percent of P, less than or equal to 0.010wt percent of S, 10.0 to 14.0wt percent of Ni, 16.0 to 18.5wt percent of Cr, 2.0 to 3.0wt percent of Mo, and the balance of Fe and inevitable impurities.
Preferably, the arc striking agent comprises the following components in percentage by mass:
Ti02 30-40％；
CaF2 60-70％。
preferably, the 08AL steel/316 stainless steel composite plate blank has the 08AL thickness of 60-65mm and the 316 stainless steel thickness of 5-10 mm.
Preferably, the 08AL steel/316 stainless steel composite plate has the interface shear strength of more than or equal to 115MPa, the tensile strength of more than or equal to 325MPa and the repeated bending times of more than or equal to 7 times.
The invention has the beneficial effects that:
1. the 08AL steel/316 stainless steel billet is produced by an electroslag remelting process, and is rolled to a target thickness of 1.5-6 mm by hot rolling, and annealing treatment is not needed;
2. the interface shear strength of the 08AL steel/316 stainless steel composite plate is more than or equal to 115MPa, the tensile strength is more than or equal to 325MPa, and the repeated bending times are more than or equal to 7 times;
2. the invention combines electroslag remelting, heating and rolling together, reduces the process flow, accelerates the production rhythm, is easy to realize large-scale industrial production, is a 08AL steel/316 stainless steel metal laminar composite material preparation and processing technology with very good development potential, reduces the production cost and saves social resources.
Detailed Description
The following further illustrates embodiments of the invention:
example 1
The embodiment provides a 08AL steel/316 stainless steel electroslag remelting rolling method, wherein the chemical components of the 08AL steel are as follows:
0.05 wt% of C, 0.02 wt% of Si, 0.4 wt% of Mn, 0.010 wt% of P, 0.005 wt% of S, 0.05 wt% of AL, and the balance of Fe and inevitable impurities;
the chemical composition of the 316 stainless steel is as follows: 0.03 wt% of C, 0.80 wt% of Si, 1.8 wt% of Mn, 0.015 wt% of P, 0.005 wt% of S, 10 wt% of Ni, 16.0 wt% of Cr, 2.0 wt% of Mo, and the balance of Fe and inevitable impurities.
The method comprises the following steps:
after the arc striking electrode is clamped, the arc striking electrode is vertically fed into the furnace, and the center is adjusted to ensure that the end is away from an arc striking agent (32 percent Ti 0)268% of CaF2) After all parts at the position of 50mm are ready, adjusting the current and the voltage, adding slag after the current on the instrument panel begins to fluctuate, and adopting 70% CaF during electroslag remelting2-30％Al2O3In the process of electrifying, joule heat is released from a slag pool, the end of the consumable electrode is gradually melted, molten metal is gathered into metal droplets, the metal droplets pass through the slag pool and fall into a crystallizer to form a metal molten pool, the metal droplets are rapidly solidified to form a 08AL steel ingot under the action of water cooling, and when the thickness of the 08AL steel ingot meets the set requirement, the 316 stainless steel consumable electrode is immediately replaced. A 08AL steel/316 stainless steel composite slab with a total thickness of 70mm was produced, wherein 08AL was 60mm thick and 316 stainless steel was 10mm thick.
Cooling the composite plate blank to room temperature, checking the quality and the surface of the plate blank, feeding the plate blank into a furnace for heating, wherein the heating time in the heating furnace is 260min, the heating temperature is 1150 ℃, the temperature of the plate blank out of the heating furnace is 1100 ℃, and two-stage rolling control is adopted. For the recrystallization zone rolling, the rolling passes are reduced under the condition of equipment allowance, and the rolling pass reduction rate is improved; and properly prolonging the retention time after rolling to increase the recrystallization number of the deformed austenite, homogenizing the structure, removing phosphorus from the heating furnace by high-pressure water at 16MPa after removing phosphorus, performing 3-pass rough rolling after removing phosphorus, wherein the finish rolling inlet temperature is 900 ℃, the 3-pass reduction rate before finish rolling is respectively 51.2%, 50.0% and 49.8%, and the final reduction rate is 3.3%, so as to ensure the accurate thickness and good plate shape, the outlet thickness of the rolling mill is 5mm, the finish rolling outlet temperature is 800 ℃, the rolled piece is taken out of the rolling mill and then is subjected to laminar cooling at the cooling rate of 2 ℃/s and the termination temperature of the laminar cooling is 550 ℃, a coiling machine is used for coiling, the rolled piece is sent to a heat preservation pit for heat preservation for 6 hours, and the rolled composite plate is subjected to selective heat treatment according to actual conditions and customer requirements, and is subjected to leveling, finishing and inspection in a leveling unit. The interface shear strength of the 08AL steel/316 stainless steel composite plate is detected to be 135MPa, the tensile strength is 355MPa, and the repeated bending times are 8 times.
Example 2
This example provides a method for electroslag remelting rolling of 08AL steel/316 stainless steel,
wherein the 08AL steel comprises the following chemical components: 0.06 wt% of C, 0.03 wt% of Si, 0.2 wt% of Mn, 0.010 wt% of P, 0.005 wt% of S, 0.025 wt% of AL, and the balance of Fe and inevitable impurities;
the chemical components of the 316 stainless steel are as follows: 0.04 wt% of C, 0.70 wt% of Si, 1.6 wt% of Mn, 0.012 wt% of P, 0.005 wt% of S, 10.5 wt% of Ni, 16.0 wt% of Cr, 2.1 wt% of Mo, and the balance of Fe and inevitable impurities.
The method comprises the following steps:
after the arc striking electrode is clamped, the arc striking electrode is vertically fed into the furnace, and the center is adjusted to ensure that the end is away from an arc striking agent (35 percent Ti 0)265% CaF2) Adjusting current and voltage after the opening of 70mm is ready, adding slag after the current on the instrument panel begins to fluctuate, and adopting 70% Ca during electroslag remeltingF2-30％Al2O3In the process of electrifying, joule heat is released from a slag pool, the end of the consumable electrode is gradually melted, molten metal is gathered into metal droplets, the metal droplets pass through the slag pool and fall into a crystallizer to form a metal molten pool, the metal droplets are rapidly solidified to form a 08AL steel ingot under the action of water cooling, and when the thickness of the 08AL steel ingot meets the set requirement, the 316 stainless steel consumable electrode is immediately replaced. A 08AL steel/316 stainless steel composite slab with a total thickness of 70mm was produced, wherein 08AL was 65mm thick and 316 stainless steel was 5mm thick.
Cooling the composite plate blank to room temperature, checking the quality and the surface of the plate blank, feeding the plate blank into a furnace for heating, wherein the heating time in the heating furnace is 280min, the heating temperature is 1200 ℃, the temperature of the plate blank taken out of the heating furnace is 1150 ℃, and two-stage rolling control is adopted. For the recrystallization zone rolling, the rolling passes are reduced under the condition of equipment allowance, and the rolling pass reduction rate is improved; and properly prolonging the retention time after rolling to increase the recrystallization quantity of deformed austenite, homogenizing the structure, removing phosphorus from the heating furnace by high-pressure water at 16MPa after removing phosphorus, performing rough rolling for 3 times after removing phosphorus, wherein the finish rolling inlet temperature is 920 ℃, the reduction rates of the 3 times before finish rolling are respectively 51.2%, 50.1% and 49.7%, and the reduction rate of the last time is 3.2%, so as to ensure the accurate thickness and good plate shape, the outlet thickness of the rolling mill is 6mm, the finish rolling outlet temperature is 800 ℃, the rolled piece is taken out of the rolling mill and then is subjected to laminar cooling at the cooling rate of 2.5 ℃/s, the termination temperature of the laminar cooling is 600 ℃, the rolled piece is coiled by a coiling machine, the heat preservation pit is sent for 10 hours, the heat treatment is carried out after rolling, the rolled composite plate is subjected to hot-row selection treatment according to actual conditions and customer requirements, and the flattening, finishing and inspection are carried out on a flattening unit. The 08AL steel/316 stainless steel composite plate is detected to have the interface shear strength of 135MPa, the tensile strength of 345MPa and the repeated bending times of 9 times.
Example 3
This example provides a 08AL steel/316 stainless steel electroslag remelting rolling process, in which,
the 08AL steel comprises the following chemical components: 0.05 wt% of C, 0.03 wt% of Si, 0.3 wt% of Mn, 0.010 wt% of P, 0.005 wt% of S, 0.06 wt% of AL, and the balance of Fe and inevitable impurities;
the chemical components of the 316 stainless steel are as follows: 0.06 wt% of C, 0.70 wt% of Si, 1.6 wt% of Mn, 0.012 wt% of P, 0.005 wt% of S, 10.0 wt% of Ni, 17.0 wt% of Cr, 2.0 wt% of Mo, and the balance of Fe and inevitable impurities.
The method comprises the following steps:
after the arc striking electrode is clamped, the arc striking electrode is vertically fed into the furnace, and the center is adjusted to ensure that the end is away from an arc striking agent (32 percent Ti 0)268% of CaF2) Adjusting current and voltage after the opening of 70mm is ready, adding slag after the current on the instrument panel begins to fluctuate, and adopting 70% CaF during electroslag remelting2-30％Al2O3In the process of electrifying, joule heat is released from a slag pool, the end of the consumable electrode is gradually melted, molten metal is gathered into metal droplets, the metal droplets pass through the slag pool and fall into a crystallizer to form a metal molten pool, the metal droplets are rapidly solidified to form a 08AL steel ingot under the action of water cooling, and when the thickness of the 08AL steel ingot meets the set requirement, the 316 stainless steel consumable electrode is immediately replaced. A 08AL steel/316 stainless steel composite slab with a total thickness of 70mm was produced, wherein 08AL was 65mm thick and 316 stainless steel was 5mm thick.
Cooling the composite plate blank to room temperature, checking the quality and the surface of the plate blank, feeding the plate blank into a furnace for heating, wherein the heating time in the heating furnace is 260min, the heating temperature is 1250 ℃, the temperature of the plate blank taken out of the heating furnace is 1200 ℃, and two-stage controlled rolling is adopted;
for the recrystallization zone rolling, the rolling passes are reduced under the condition of equipment allowance, and the rolling pass reduction rate is improved; and properly prolonging the retention time after rolling to increase the recrystallization number of deformed austenite, homogenizing the structure, removing phosphorus from the heating furnace by high-pressure water at 16MPa after removing phosphorus, performing 5-pass rough rolling after removing phosphorus, wherein the finish rolling inlet temperature is 950 ℃, the 3-pass reduction rate before finish rolling is respectively 52.2%, 51.1% and 49.3%, and the final-pass reduction rate is 3.6% to ensure the accurate thickness and good plate shape, the outlet thickness of the rolling mill is 1.5mm, the finish rolling outlet temperature is 850 ℃, the rolled piece is taken out of the rolling mill and then is cooled by laminar flow, the cooling rate is 2 ℃/s, the finish temperature of laminar flow cooling is 550 ℃, the coiled by a coiling machine, the coiled piece is sent to a heat preservation pit for 10 hours, the heat treatment is performed after rolling, the rolled composite plate is subjected to hot-row selection treatment according to actual conditions and customer requirements, and the flattening, finishing and inspection are performed on a flattening unit. The 08AL steel/316 stainless steel composite plate interface shear strength is detected to be 155MPa, the tensile strength is detected to be 375MPa, and the repeated bending times are detected to be 9 times.
Example 4
This example provides a 08AL steel/316 stainless steel electroslag remelting rolling process, in which,
the 08AL steel comprises the following chemical components: 0.05 wt% of C, 0.02 wt% of Si, 0.3 wt% of Mn, 0.012 wt% of P, 0.006 wt% of S, 0.04 wt% of AL, and the balance of Fe and inevitable impurities;
the chemical components of the 316 stainless steel are as follows: 0.06 wt% of C, 0.80 wt% of Si, 1.2 wt% of Mn, 0.012 wt% of P, 0.005 wt% of S, 10.5 wt% of Ni, 16.5 wt% of Cr, 2.0 wt% of Mo, and the balance of Fe and inevitable impurities.
The method comprises the following steps:
after the arc striking electrode is clamped, the arc striking electrode is vertically fed into the furnace, and the center is adjusted to ensure that the end is away from the arc striking agent (38 percent Ti 0)262% of CaF2) After all parts at the position of 30mm are ready, adjusting the current and the voltage, adding slag after the current on the instrument panel begins to fluctuate, and adopting 70% CaF during electroslag remelting2-30％Al2O3In the process of electrifying, joule heat is released from a slag pool, the end of the consumable electrode is gradually melted, molten metal is gathered into metal droplets, the metal droplets pass through the slag pool and fall into a crystallizer to form a metal molten pool, the metal droplets are rapidly solidified to form a 08AL steel ingot under the action of water cooling, and when the thickness of the 08AL steel ingot meets the set requirement, the 316 stainless steel consumable electrode is immediately replaced. A 08AL steel/316 stainless steel composite slab with a total thickness of 70mm was produced, wherein 08AL was 60mm thick and 316 stainless steel was 10mm thick.
Cooling the composite plate blank to room temperature, checking the quality and the surface of the plate blank, feeding the plate blank into a furnace for heating, wherein the heating time in the heating furnace is 250min, the heating temperature is 1180 ℃, the temperature of the plate blank out of the heating furnace is 1130 ℃, and two-stage controlled rolling is adopted.
For the recrystallization zone rolling, the rolling passes are reduced under the condition of equipment allowance, and the rolling pass reduction rate is improved; and properly prolonging the retention time after rolling to increase the recrystallization number of deformed austenite, homogenizing the structure, removing phosphorus from the heating furnace by high pressure water at 16MPa after removing phosphorus, performing rough rolling for 3 times, wherein the finish rolling inlet temperature is 930 ℃, the reduction rates of the 3 times before finish rolling are respectively 51.9%, 51.3% and 49.4%, and the reduction rate of the last time is 2.8%, so as to ensure accurate thickness and good plate shape, the outlet thickness of the rolling mill is 3.0mm, the finish rolling outlet temperature is 820 ℃, the rolled piece is taken out of the rolling mill and then is cooled by laminar flow, the cooling rate is 6 ℃/s, the termination temperature of the laminar flow cooling is 550 ℃, the rolled piece is coiled by a coiling machine, is sent to a heat preservation pit for heat preservation for 6 hours, and is subjected to heat treatment after rolling, and the rolled composite plate is subjected to heat selection treatment according to actual conditions and customer requirements, and is flattened, finished and inspected in a flattening unit. The 08AL steel/316 stainless steel composite plate is detected to have the interface shear strength of 135MPa, the tensile strength of 345MPa and the repeated bending times of 9 times.
The foregoing embodiments and description have been presented only to illustrate the principles and preferred embodiments of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as hereinafter claimed.
Claims (6)
1. A08 AL steel/316 stainless steel electroslag remelting rolling method is characterized by comprising the following steps:
s1), adopting an arc striking agent in an electroslag remelting furnace, striking an arc 30-70mm away from a port, and adopting 70 mass percent of CaF2-30％Al2O3The slag system discharges Joule heat from the slag pool in the electrifying process, gradually melts the end of the consumable electrode, converges molten metal into metal droplets, passes through the slag pool, falls into the crystallizer to form a metal molten pool, is rapidly solidified to form a 08AL steel ingot under the water cooling effect, and immediately changes the 316 stainless steel consumable electrode when the thickness of the 08AL steel ingot meets the set requirement; producing a 08AL steel/316 stainless steel composite plate blank with the total thickness of 70 mm;
s2), cooling the composite plate blank to room temperature, checking the quality and the surface of the plate blank, feeding the plate blank into a furnace for heating, heating the plate blank in the heating furnace for more than or equal to 240min at the heating temperature of 1150-1250 ℃, taking the plate blank out of the heating furnace at the temperature of more than or equal to 1100 ℃, and performing two-stage controlled rolling;
for the recrystallization zone rolling, reducing rolling passes under the condition of equipment allowance, and improving the rolling pass reduction rate; and properly prolonging the retention time after rolling to increase the recrystallization quantity of deformed austenite, homogenizing the structure, removing phosphorus under high pressure after being taken out of a heating furnace, wherein the phosphorus removal pressure is more than or equal to 12MPa, performing rough rolling for 1-5 times after phosphorus removal, and the finish rolling inlet temperature is about 900-950 ℃, wherein the reduction rate of 3 times before finish rolling is large, the reduction rate of the final time is less than or equal to 5%, so as to ensure that the thickness is accurate and the plate shape is good, the outlet thickness of a rolling mill is 1.5-6 mm, the finish rolling outlet temperature is 800-850 ℃, performing laminar cooling after a rolled piece is taken out of the rolling mill, the cooling rate is 1-10 ℃/s, the termination temperature of laminar cooling is 550-600 ℃, coiling by a coiling machine, conveying to a heat preservation pit for heat preservation for 6-10 hours, performing heat treatment after rolling, performing selective heat treatment on the rolled composite plate according to actual conditions, and performing flattening, finishing and inspection on a flattening unit.
2. The electroslag remelting rolling method for 08AL steel/316 stainless steel according to claim 1, wherein the electroslag remelting rolling method comprises the following steps: the 08AL steel comprises the following chemical components: 0.05 to 0.08 weight percent of C, less than or equal to 0.05 weight percent of Si, 0.2 to 0.4 weight percent of Mn0.015 weight percent, less than 0.010 weight percent of S, 0.025 to 0.06 weight percent of AL, and the balance of Fe and inevitable impurities.
3. The electroslag remelting rolling method for 08AL steel/316 stainless steel according to claim 1, wherein the electroslag remelting rolling method comprises the following steps: the chemical composition of the 316 stainless steel is as follows: 0.03 to 0.06wt percent of C, 0.50 to 0.80wt percent of Si, 1.2 to 1.8wt percent of Mn1, less than or equal to 0.015wt percent of P, less than or equal to 0.010wt percent of S, 10.0 to 14.0wt percent of Ni, 16.0 to 18.5wt percent of Cr, 2.0 to 3.0wt percent of Mo, and the balance of Fe and inevitable impurities.
4. The electroslag remelting rolling method for 08AL steel/316 stainless steel according to claim 1, wherein the electroslag remelting rolling method comprises the following steps: the arc striking agent comprises the following components in percentage by mass:
Ti02 30-40％；
CaF2 60-70％。
5. the electroslag remelting rolling method for 08AL steel/316 stainless steel according to claim 1, wherein the electroslag remelting rolling method comprises the following steps: the 08AL steel/316 stainless steel composite plate blank is characterized in that the thickness of 08AL is 60-65mm, and the thickness of 316 stainless steel is 5-10 mm.
6. The electroslag remelting rolling method for 08AL steel/316 stainless steel according to claim 1, wherein the electroslag remelting rolling method comprises the following steps: the interface shear strength of the 08AL steel/316 stainless steel composite plate is not less than 115MPa, the tensile strength is not less than 325MPa, and the repeated bending frequency is not less than 7 times.
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| PCT/CN2021/126666 WO2023050508A1 (en) | 2021-09-28 | 2021-10-27 | 08al steel/316 stainless steel electroslag remelting and rolling method |
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