CN113355581A - High-purity smelting method for low-Si and low-Al blade steel - Google Patents
High-purity smelting method for low-Si and low-Al blade steel Download PDFInfo
- Publication number
- CN113355581A CN113355581A CN202110443031.4A CN202110443031A CN113355581A CN 113355581 A CN113355581 A CN 113355581A CN 202110443031 A CN202110443031 A CN 202110443031A CN 113355581 A CN113355581 A CN 113355581A
- Authority
- CN
- China
- Prior art keywords
- low
- plate
- steel
- ring
- smelting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 64
- 239000010959 steel Substances 0.000 title claims abstract description 64
- 238000003723 Smelting Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000007670 refining Methods 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 14
- 239000002893 slag Substances 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 3
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 3
- 239000000378 calcium silicate Substances 0.000 claims description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 239000010436 fluorite Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 2
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 2
- OSMSIOKMMFKNIL-UHFFFAOYSA-N calcium;silicon Chemical compound [Ca]=[Si] OSMSIOKMMFKNIL-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 239000004571 lime Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 abstract description 8
- 230000000996 additive effect Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 229910000712 Boron steel Inorganic materials 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/068—Decarburising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention provides a high-purity smelting method of low-Si low-Al blade steel, which comprises the following steps: AOD smelting, VOD smelting and LF refining; the invention also provides a low-Si low-Al blade steel high-purity smelting vacuum ladle feeding mechanism which comprises a ladle cover, wherein the inner wall of the ladle cover is provided with a mounting plate, the top surface of the mounting plate is provided with a driving motor, the bottom surface of the mounting plate is provided with a connecting buckle frame, a charging barrel is inserted into a groove body of the connecting buckle frame, a material leakage port is formed in a bottom plate of the charging barrel, a plug plate is inserted into the material leakage port and fixed on the bottom surface of a connecting plate, and the connecting plate is fixed on the surface of a lifting ring. The beneficial effects are that: the feeding mechanism of the vacuum ladle for high-purity smelting of low-Si low-Al blade steel realizes automatic feeding of the ladle in a sealed state, namely after a plug plate is separated from a material leakage port, an additive falls down, and when a shaft sleeve drives a rotating ring to rotate, a material shifting plate sweeps the additive left on the top surface of a connecting plate down.
Description
Technical Field
The invention relates to the technical field of steel smelting, in particular to a high-purity smelting method of low-Si low-Al blade steel.
Background
At present, the smelting process of low-carbon, low-silicon, low-aluminum and high-boron steel 10Cr11Co3W3NiMoVNbNB with extremely high smelting difficulty is difficult, the steel is mainly applied to supercritical and ultra-supercritical turbine unit blade steel, high-strength bolts and other high-temperature parts, the service temperature can reach 630 ℃, and the steel has high yield strength, high enough lasting creep strength, toughness and oxidation resistance.
In the prior art, the traditional smelting process mainly adopts electric furnace + VOD or electric furnace + AOD for smelting, because the contents of Si, Al and C in steel are very low, the deoxidation reduction is limited, the oxygen content in the steel is high, the component uniformity is poor, the purity is poor, the requirements that the A, B, C, D types of coarse and fine systems of non-metallic inclusions are all less than or equal to 1.5 grade are difficult to meet, and the smelting success rate is extremely low.
Disclosure of Invention
The invention aims to provide a high-purity smelting method of low-Si low-Al blade steel, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a high-purity smelting method for low-Si low-Al blade steel comprises the following steps:
the method comprises the following steps: AOD smelting: by utilizing the advantages of removing silicon and protecting chromium by the AOD furnace, the elemental compositions in the steel reach the required range, and meanwhile, C, Si elements in the primary molten steel are controlled within a reasonable range;
step two: VOD smelting: in the VOD refining, while removing C, Si and Al elements in steel, argon is blown from the bottom of a VOD vacuum ladle, oxygen is blown from the top of the VOD vacuum ladle and gas washing is carried out to purify molten steel, and after VOD oxygen blowing is finished, reducing slag charge and a deoxidizing agent are added for vacuum deoxidation and reduction, so that the chemical composition is uniform, and the oxygen content and non-metallic inclusions in steel are reduced;
step three: LF refining: the LF furnace controls the temperature of molten steel to be 1630-1680 ℃ and the alkalinity of furnace slag to be 2.0-2.5, ensures the good fluidity of the furnace slag, and simultaneously adopts calcium silicate powder to deoxidize, ensures that Si and Al components are qualified, and simultaneously further deoxidizes and reduces to achieve the purpose of smelting high-purity steel.
Preferably, in the step one, the content of C is controlled to be 0.2-0.5%, and the content of Si is controlled to be less than or equal to 0.10%.
Preferably, in the second step, the components of the reducing slag and the deoxidizer comprise 17 kg/t to 18kg/t steel of lime, 10kg/t to 12 kg/t steel of fluorite, 1 kg/t to 3 kg/t steel of Al particles and 2 kg/t to 4 kg/t steel of silicon calcium.
A vacuum ladle feeding mechanism for high-purity smelting of low-Si low-Al blade steel comprises a ladle cover, wherein a mounting plate is arranged on the inner wall of the ladle cover, a driving motor is arranged on the top surface of the mounting plate, a connecting buckle frame is arranged on the bottom surface of the mounting plate, a charging barrel is inserted into a groove body of the connecting buckle frame, a material leakage opening is formed in a bottom plate of the charging barrel, a plug plate is inserted into the material leakage opening and fixed on the bottom surface of a connecting plate, the connecting plate is fixed on the surface of a lifting ring, the lifting ring is sleeved on the outer side of a shaft sleeve, a bearing seat is sleeved at the bottom end of the shaft sleeve and fixed on the bottom plate of the charging barrel, a rotating shaft is inserted into the shaft sleeve, the top end of the rotating shaft is connected with a shaft body of the driving motor, a rotating ring is sleeved on the outer side of the shaft sleeve, a clamping block is arranged on the inner ring surface of the rotating ring, a guide groove is formed in the surface of the clamping block and is slidably connected in a pulley, and the pulley is arranged on the outer wall of the shaft sleeve, the outer annular surface of swivel is provided with the switch plate, and the surface of connecting plate is pegged graft and is had the guide bar, and the bottom mounting of guide bar is on the bottom plate of feed cylinder, and the bottom surface at the spacing ring is fixed to the top of guide bar, and the inner wall at the feed cylinder is fixed to the spacing ring
Preferably, the connection knot frame is the annular structure that the section is "concave" font, and it is fixed through the screw rod after the frame is detained in the connection to insert on the top of feed cylinder, and the small distribution such as a plurality of drain openings fixed distance is arranged to the drain opening, is prismatic inclined plane between two adjacent drain openings, and the lifting ring is ring shape platelike structure, and the interior anchor ring of lifting ring is provided with the internal thread, and the axle sleeve is the cylinder structure, and the outer wall of axle sleeve is provided with the external screw thread, and the inner ring of axle sleeve is square cylinder structure.
Preferably, the swivel is of a circular plate-shaped structure, the fixture blocks are of a square plate-shaped structure, the fixture blocks are multiple, the fixture blocks are arranged on the inner annular surface of the swivel in a cross shape, the material shifting plate is of a square plate-shaped structure, and bristles are arranged on the bottom surface of the material shifting plate.
Preferably, the guide rods correspond to the connecting plates one to one, the limiting ring is of a ring plate structure with a right trapezoid cross section, and the top surface of the limiting ring inclines downwards from the outer ring to the inner ring.
Compared with the prior art, the invention has the beneficial effects that:
1. the high-purity smelting method for the low-Si and low-Al blade steel adopts the AOD, VOD and LF processes for smelting, can accurately control chemical components, and has good component uniformity; the oxygen content and the non-metallic inclusions in steel can be effectively reduced, the aim of smelting high-purity steel is achieved, and the requirements of users on special steel can be well met; the process technology uses high-carbon ferrochrome alloying to greatly reduce the production cost, save resources and improve the market competitiveness of enterprises;
2. the feeding mechanism of the vacuum ladle for high-purity smelting of low-Si low-Al blade steel realizes automatic feeding of the ladle in a sealed state, namely after a plug plate is separated from a material leakage port, an additive falls down, and when a shaft sleeve drives a rotating ring to rotate, a material shifting plate sweeps the additive left on the top surface of a connecting plate down.
Drawings
FIG. 1 is a schematic structural view of a ladle cover according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 2;
FIG. 4 is a top view of a cartridge structure according to the present invention.
In the figure: the device comprises a steel ladle cover 1, a mounting plate 2, a driving motor 3, a connecting buckle frame 4, a charging barrel 5, a material leakage opening 6, a plug plate 7, a connecting plate 8, a lifting ring 9, a shaft sleeve 10, a bearing seat 11, a rotating shaft 12, a rotating ring 13, a clamping block 14, a guide groove 15, a pulley 16, a material shifting plate 17, a guide rod 18 and a limiting ring 19.
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 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.
Referring to fig. 1 to 4, the present invention provides a technical solution: a high-purity smelting method for low-Si low-Al blade steel is characterized by comprising the following steps:
the method comprises the following steps: AOD smelting: by utilizing the advantages of removing silicon and protecting chromium by the AOD furnace, the elemental compositions in the steel reach the required range, meanwhile, the C, Si element of the primary molten steel is controlled in a reasonable range, the C content is controlled to be 0.2-0.5%, and the Si content is controlled to be less than or equal to 0.10%;
step two: VOD smelting: the method comprises the following steps of performing VOD refining, removing C, Si and Al elements in steel, simultaneously, purifying molten steel by blowing argon from the bottom of a VOD vacuum ladle and blowing oxygen from the top in a gas washing mode, after VOD oxygen blowing is finished, adding a reduction slag charge and a deoxidizer to perform vacuum deoxidation reduction, homogenizing chemical components, and reducing oxygen content and nonmetallic inclusions in the steel, wherein the reduction slag charge and the deoxidizer comprise 17 kg/t-18 kg/t of steel, 10 kg/t-12 kg/t of fluorite, 1 kg/t-3 kg/t of steel and 2 kg/t-4 kg/t of steel containing Al particles;
step three: LF refining: the LF furnace controls the temperature of molten steel to be 1630-1680 ℃ and the alkalinity of furnace slag to be 2.0-2.5, ensures the good fluidity of the furnace slag, and simultaneously adopts calcium silicate powder to deoxidize, ensures that Si and Al components are qualified, and simultaneously further deoxidizes and reduces to achieve the purpose of smelting high-purity steel.
The utility model provides a low Si hangs down high-purity vacuum ladle of smelting of Al blade steel throws material mechanism, includes ladle cover 1, its characterized in that: the inner wall of the steel ladle cover 1 is provided with a mounting plate 2, the top surface of the mounting plate 2 is provided with a driving motor 3, the bottom surface of the mounting plate 2 is provided with a connecting buckle frame 4, a material barrel 5 is inserted in a groove body of the connecting buckle frame 4, a material leakage opening 6 is arranged on a bottom plate of the material barrel 5, a plug plate 7 is inserted in the material leakage opening 6, the plug plate 7 is fixed on the bottom surface of a connecting plate 8, the connecting plate 8 is fixed on the surface of a lifting ring 9, the lifting ring 9 is sleeved on the outer side of a shaft sleeve 10, the bottom end of the shaft sleeve 10 is sleeved with a bearing seat 11, the bearing seat 11 is fixed on the bottom plate of the material barrel 5, the connecting buckle frame 4 is in an annular structure with a concave-shaped section, the top end of the material barrel 5 is fixed through a screw rod after being inserted in the connecting buckle frame 4, the material leakage openings 6 are provided with a plurality of material leakage openings 6 which are arranged and distributed at equal intervals, a prismatic inclined surface is arranged between two adjacent material leakage openings 6, and the lifting ring 9 is in an annular plate-shaped structure, an internal thread is arranged on the inner ring surface of the lifting ring 9, the shaft sleeve 10 is of a cylindrical structure, an external thread is arranged on the outer wall of the shaft sleeve 10, and the inner ring of the shaft sleeve 10 is of a square cylinder structure;
a rotating shaft 12 is inserted into the shaft sleeve 10, the top end of the rotating shaft 12 is connected with the shaft body of the driving motor 3, a rotating ring 13 is sleeved outside the shaft sleeve 10, a fixture block 14 is arranged on the inner annular surface of the rotating ring 13, a guide groove 15 is arranged on the surface of the fixture block 14, the fixture block 14 is slidably connected in a pulley 16, the pulley 16 is arranged on the outer wall of the shaft sleeve 10, a material-shifting plate 17 is arranged on the outer annular surface of the rotating ring 13, the rotating ring 13 is of a circular plate-shaped structure, the fixture block 14 is of a square plate-shaped structure, the fixture blocks 14 are arranged in a plurality and arranged on the inner annular surface of the rotating ring 13 in a cross shape, the material-shifting plate 17 is of a square plate-shaped structure, bristles are arranged on the bottom surface of the material-shifting plate 17, a guide rod 18 is inserted into the surface of the connecting plate 8, the bottom end of the guide rod 18 is fixed on the bottom plate of the material cylinder 5, the top end of the guide rod 18 is fixed on the bottom surface of the limiting ring 19, and the limiting ring 19 is fixed on the inner wall of the material cylinder 5, the guide rods 18 correspond to the connecting plates 8 one by one, the limiting ring 19 is of a ring plate structure with a right trapezoid cross section, and the top surface of the limiting ring 19 inclines downwards from the outer ring to the inner ring.
The working principle is as follows: when the device is actually used, the plug plate 7 is inserted into the material leakage opening 6 for plugging, an additive is filled into the material cylinder 5, the ladle cover 1 is opened, the material cylinder 5 is butted on the connecting buckle frame 4 and fixed by virtue of a screw, at the moment, the rotating shaft 12 is inserted into the shaft sleeve 10, after the ladle cover 1 is closed, when the additive needs to be put in, the driving motor 3 is started, the driving motor 3 drives the shaft sleeve 10 to rotate through the rotating shaft 12, the shaft sleeve 10 is in threaded connection with the lifting ring 9, and the lifting ring 9 is limited by the two groups of guide rods 18 and can not rotate, so that the shaft sleeve 10 rotates to drive the lifting ring 9 to vertically move, after the plug plate 7 is lifted up and separated from the material leakage opening 6, the additive in the material cylinder 5 is leaked and put in from the material leakage opening 6, the shaft sleeve 10 drives the rotating ring 13 to rotate, along with the lifting ring 9, the lifting ring 9 supports the rotating ring 13 to slide along the guide grooves 15, the clamping blocks 14 are clamped in the guide grooves 15, and thus the rotating ring 13 and the shaft sleeve 10 synchronously rotate, the rotating ring 13 drives the material-shifting plate 17 to sweep away the additive deposited on the top surface of the connecting plate 8.
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 (7)
1. A high-purity smelting method for low-Si low-Al blade steel is characterized by comprising the following steps:
the method comprises the following steps: AOD smelting: by utilizing the advantages of removing silicon and protecting chromium by the AOD furnace, the elemental compositions in the steel reach the required range, and meanwhile, C, Si elements in the primary molten steel are controlled within a reasonable range;
step two: VOD smelting: in the VOD refining, while removing C, Si and Al elements in steel, argon is blown from the bottom of a VOD vacuum ladle, oxygen is blown from the top of the VOD vacuum ladle and gas washing is carried out to purify molten steel, and after VOD oxygen blowing is finished, reducing slag charge and a deoxidizing agent are added for vacuum deoxidation and reduction, so that the chemical composition is uniform, and the oxygen content and non-metallic inclusions in steel are reduced;
step three: LF refining: the LF furnace controls the temperature of molten steel to be 1630-1680 ℃ and the alkalinity of furnace slag to be 2.0-2.5, ensures the good fluidity of the furnace slag, and simultaneously adopts calcium silicate powder to deoxidize, ensures that Si and Al components are qualified, and simultaneously further deoxidizes and reduces to achieve the purpose of smelting high-purity steel.
2. The high-purity smelting method of the low-Si low-Al blade steel as claimed in claim 1, wherein the high-purity smelting method comprises the following steps: in the first step, the content of C is controlled to be 0.2-0.5 percent, and the content of Si is controlled to be less than or equal to 0.10 percent.
3. The high-purity smelting method of the low-Si low-Al blade steel as claimed in claim 1, wherein the high-purity smelting method comprises the following steps: in the second step, the components of the reducing slag charge and the deoxidizer comprise 17 kg/t to 18kg/t steel of lime, 10kg/t to 12 kg/t steel of fluorite, 1 kg/t to 3 kg/t steel of Al particles and 2 kg/t to 4 kg/t steel of silicon calcium.
4. The high-purity smelting vacuum ladle charging mechanism for low-Si low-Al blade steel as claimed in claim 1 comprises a ladle cover (1), and is characterized in that: the inner wall of the steel ladle cover (1) is provided with a mounting plate (2), the top surface of the mounting plate (2) is provided with a driving motor (3), the bottom surface of the mounting plate (2) is provided with a connecting buckle frame (4), a material barrel (5) is inserted in a groove body of the connecting buckle frame (4), a material leakage opening (6) is formed in a bottom plate of the material barrel (5), a plug plate (7) is inserted in the material leakage opening (6), the plug plate (7) is fixed on the bottom surface of a connecting plate (8), the connecting plate (8) is fixed on the surface of a lifting ring (9), the lifting ring (9) is sleeved on the outer side of a shaft sleeve (10), the bottom end of the shaft sleeve (10) is sleeved with a bearing seat (11), the bearing seat (11) is fixed on the bottom plate of the material barrel (5), a rotating shaft (12) is inserted in the shaft sleeve (10), the top end of the rotating shaft (12) is connected with a shaft body of the driving motor (3), and a rotating ring (13) is sleeved on the outer side of the shaft sleeve (10), the inner ring surface of the rotating ring (13) is provided with a clamping block (14), the surface of the clamping block (14) is provided with a guide groove (15), the clamping block (14) is connected in a pulley (16) in a sliding mode, the pulley (16) is arranged on the outer wall of the shaft sleeve (10), the outer ring surface of the rotating ring (13) is provided with a material shifting plate (17), the surface of the connecting plate (8) is spliced with a guide rod (18), the bottom end of the guide rod (18) is fixed on the bottom plate of the charging barrel (5), the top end of the guide rod (18) is fixed on the bottom surface of a limiting ring (19), and the limiting ring (19) is fixed on the inner wall of the charging barrel (5).
5. The low-Si low-Al blade steel high-purity clean smelting vacuum ladle feeding mechanism of claim 4 is characterized in that: the connection detains frame (4) and is the annular structure of section for "concave" font, it is fixed through the screw rod after connecting detaining frame (4) to insert the top of feed cylinder (5), hourglass material mouth (6) are provided with a plurality ofly, a plurality of hourglass material mouth (6) equidimension range distributions such as fixed distance, be prismatic inclined plane between two adjacent hourglass material mouths (6), lifting ring (9) are ring shape platelike structure, the interior anchor ring of lifting ring (9) is provided with the internal thread, axle sleeve (10) are the cylindrical structure, the outer wall of axle sleeve (10) is provided with the external screw thread, and the inner ring of axle sleeve (10) is square cylinder structure.
6. The low-Si low-Al blade steel high-purity clean smelting vacuum ladle feeding mechanism of claim 4 is characterized in that: the rotating ring (13) is of a circular plate-shaped structure, the clamping blocks (14) are of a square plate-shaped structure, the clamping blocks (14) are arranged in a plurality of numbers, the clamping blocks (14) are arranged on the inner ring surface of the rotating ring (13) in a cross shape, the material shifting plate (17) is of a square plate-shaped structure, and bristles are arranged on the bottom surface of the material shifting plate (17).
7. The low-Si low-Al blade steel high-purity clean smelting vacuum ladle feeding mechanism of claim 4 is characterized in that: the guide rods (18) are in one-to-one correspondence with the connecting plates (8), the limiting ring (19) is of a ring plate structure with a right trapezoid cross section, and the top surface of the limiting ring (19) is inclined downwards from the outer ring to the inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110443031.4A CN113355581A (en) | 2021-04-23 | 2021-04-23 | High-purity smelting method for low-Si and low-Al blade steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110443031.4A CN113355581A (en) | 2021-04-23 | 2021-04-23 | High-purity smelting method for low-Si and low-Al blade steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113355581A true CN113355581A (en) | 2021-09-07 |
Family
ID=77525373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110443031.4A Pending CN113355581A (en) | 2021-04-23 | 2021-04-23 | High-purity smelting method for low-Si and low-Al blade steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113355581A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114107603A (en) * | 2021-11-26 | 2022-03-01 | 攀钢集团江油长城特殊钢有限公司 | A kind of smelting method of low silicon, low aluminum, tungsten, boron and high chromium martensitic stainless steel |
| CN114752729A (en) * | 2022-04-11 | 2022-07-15 | 江苏维卡金属合金材料有限公司 | Duplex smelting device for Fe-Ni42 alloy |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5650024A (en) * | 1993-12-28 | 1997-07-22 | Nippon Steel Corporation | Martensitic heat-resisting steel excellent in HAZ-softening resistance and process for producing the same |
| CN101191171A (en) * | 2006-11-24 | 2008-06-04 | 宝山钢铁股份有限公司 | Method of Controlling Carbon and Nitrogen Content in Ladle Refining Furnace Treating Ultra-pure Ferritic Stainless Steel |
| CN202216513U (en) * | 2011-07-25 | 2012-05-09 | 国核宝钛锆业股份公司 | A vacuum consumable electric arc furnace |
| CN207214806U (en) * | 2017-08-02 | 2018-04-10 | 上海钜晶精密仪器制造有限公司 | vacuum induction casting furnace |
| CN108855532A (en) * | 2018-06-15 | 2018-11-23 | 苏州斯尔斯特新材料科技有限公司 | A kind of agricultural production fertiliser granulates cake broke device |
| CN111254367A (en) * | 2018-11-30 | 2020-06-09 | 泰州市淳强不锈钢有限公司 | Austenitic stainless steel |
| CN112604598A (en) * | 2020-12-10 | 2021-04-06 | 山东理工大学 | Raw material dosage accurate controller of composite particle forming machine |
-
2021
- 2021-04-23 CN CN202110443031.4A patent/CN113355581A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5650024A (en) * | 1993-12-28 | 1997-07-22 | Nippon Steel Corporation | Martensitic heat-resisting steel excellent in HAZ-softening resistance and process for producing the same |
| CN101191171A (en) * | 2006-11-24 | 2008-06-04 | 宝山钢铁股份有限公司 | Method of Controlling Carbon and Nitrogen Content in Ladle Refining Furnace Treating Ultra-pure Ferritic Stainless Steel |
| CN202216513U (en) * | 2011-07-25 | 2012-05-09 | 国核宝钛锆业股份公司 | A vacuum consumable electric arc furnace |
| CN207214806U (en) * | 2017-08-02 | 2018-04-10 | 上海钜晶精密仪器制造有限公司 | vacuum induction casting furnace |
| CN108855532A (en) * | 2018-06-15 | 2018-11-23 | 苏州斯尔斯特新材料科技有限公司 | A kind of agricultural production fertiliser granulates cake broke device |
| CN111254367A (en) * | 2018-11-30 | 2020-06-09 | 泰州市淳强不锈钢有限公司 | Austenitic stainless steel |
| CN112604598A (en) * | 2020-12-10 | 2021-04-06 | 山东理工大学 | Raw material dosage accurate controller of composite particle forming machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114107603A (en) * | 2021-11-26 | 2022-03-01 | 攀钢集团江油长城特殊钢有限公司 | A kind of smelting method of low silicon, low aluminum, tungsten, boron and high chromium martensitic stainless steel |
| CN114752729A (en) * | 2022-04-11 | 2022-07-15 | 江苏维卡金属合金材料有限公司 | Duplex smelting device for Fe-Ni42 alloy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10767239B2 (en) | Production method for smelting clean steel from full-scrap steel using duplex electric arc furnaces | |
| CN101096716A (en) | Electric furnace smelting method for high-grade pipe line steel | |
| CN102787195B (en) | Stainless-steel smelting method | |
| CN1807955A (en) | High alloy steel seamless steel pipe and production method thereof | |
| CN104694819A (en) | Production method for low-carbon low-silicon steel | |
| CN101519712A (en) | Ladle refining slag modifier, preparation method and slag modifying method | |
| WO2018227836A1 (en) | Method for producing clean steel by means of electric arc furnace dual smelting of full scrap steel | |
| CN113355581A (en) | High-purity smelting method for low-Si and low-Al blade steel | |
| CN106591708A (en) | Production method for producing low-carbon low-silicon and aluminum-containing steel through short process | |
| CN101935740B (en) | White slag refining agent for LF (Ladle Furnace) refining furnace and preparation method thereof | |
| CN100354433C (en) | Converter smelting method | |
| CN108950124A (en) | The method for making steel of welding rod steel H08A | |
| CN103146978B (en) | Method for producing electroslag steel for high-chromium low-phosphorus roller | |
| CN110628985A (en) | Method for smelting special steel by bottom-blowing electric arc furnace returning oxygen blowing method | |
| CN100560741C (en) | Calcium carbide deoxidation method for ladle refining furnace | |
| CN111041367B (en) | Method for preventing carbon high-silicon low-manganese steel from flocculating in billet | |
| CN107267703A (en) | Molten iron dephosphorization device and dephosphorization method for rotary powder injection | |
| CN108913834B (en) | Process for producing high-purity pig iron by molten iron blowing, vacuum degassing and electrode heating | |
| CN107502696A (en) | A kind of EMU bearing steel production labor industry pure iron and preparation method | |
| CN102010930B (en) | Method for smelting mirror plastic mould steel | |
| CN113430449A (en) | Smelting and continuous casting production process of sulfur-containing free-cutting steel ASTM1141 | |
| CN118703737A (en) | A method for producing ultra-pure bearing steel at low cost and high efficiency | |
| CN112322822A (en) | Converter single slag smelting method for low-silicon high-phosphorus molten iron | |
| CN1030532C (en) | Iron and steel smelting method using aluminum slag | |
| CN1348995A (en) | Composite molten steel refining additive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210907 |