CN112415143A - Device for analyzing content of carbon and sulfur in oriented silicon steel - Google Patents
Device for analyzing content of carbon and sulfur in oriented silicon steel Download PDFInfo
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- CN112415143A CN112415143A CN202011302182.XA CN202011302182A CN112415143A CN 112415143 A CN112415143 A CN 112415143A CN 202011302182 A CN202011302182 A CN 202011302182A CN 112415143 A CN112415143 A CN 112415143A
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- silicon steel
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- sulfur
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- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 18
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 18
- 239000011593 sulfur Substances 0.000 title claims abstract description 18
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 42
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 42
- 239000001569 carbon dioxide Substances 0.000 claims description 21
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 7
- 239000003570 air Substances 0.000 description 25
- 230000006978 adaptation Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- GJEAMHAFPYZYDE-UHFFFAOYSA-N [C].[S] Chemical compound [C].[S] GJEAMHAFPYZYDE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- YQCIWBXEVYWRCW-UHFFFAOYSA-N methane;sulfane Chemical compound C.S YQCIWBXEVYWRCW-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0042—SO2 or SO3
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a device for analyzing the carbon and sulfur content in oriented silicon steel, which comprises a top cover, a three-way reversing valve, a top seat, a base and a telescopic pipe cover, wherein the three-way reversing valve is installed at the top of the top cover, the top seat is installed on the outer side of the bottom of the top cover, the telescopic pipe cover is hermetically installed at the bottom side of the top seat, the base is installed at the bottom of the telescopic pipe cover, racks are symmetrically installed at the top side of the base, through grooves are symmetrically formed in the top side of the top seat, a stop block is installed at the top end of each rack in a penetrating mode, and an installation plate is installed; the servo motor on the mounting plate drives the driving gear to rotate, then the driving gear rotates to drive the meshed rack to move up and down, the guide effect is achieved through the penetrating groove, the base moves up and down at the moment, the telescopic pipe cover is driven to stretch up and down until the base contacts with the ground, the processing environments with different space sizes can be manufactured conveniently, and silicon steel manufacturing with different specifications can be facilitated.
Description
Technical Field
The invention relates to the technical field of silicon steel processing, in particular to a device for analyzing the content of carbon and sulfur in oriented silicon steel.
Background
In the processing process of the silicon steel, the carbon and sulfur inside the silicon steel directly influence the service performance of the silicon steel, and the carbon and sulfur in the silicon steel are mostly originated from air in the processing process.
When the existing analysis device is used, a relatively sealed space cannot be manufactured directly during silicon steel processing, so that the content of carbon dioxide and sulfur dioxide in air cannot be controlled relatively accurately in the actual operation process, and errors exist in subsequent experimental data obtained in silicon steel performance testing.
Disclosure of Invention
The invention aims to provide an analysis device for the content of carbon and sulfur in oriented silicon steel, and solves the technical problems that when the existing analysis device is used, a relatively sealed space cannot be directly manufactured in the process of processing the silicon steel, so that the content of carbon dioxide and sulfur dioxide in the air cannot be relatively accurately controlled in the actual operation process, and therefore experimental data obtained in the subsequent performance test of the silicon steel relatively have errors.
In order to achieve the purpose, the invention adopts the following technical scheme:
the device for analyzing the carbon and sulfur content in the oriented silicon steel comprises a top cover, a three-way reversing valve, a top seat, a base and a telescopic pipe cover, wherein the three-way reversing valve is installed at the top of the top cover, the top seat is installed on the outer side of the bottom of the top cover, the telescopic pipe cover is installed on the bottom side of the top seat in a sealing mode, and the base is installed at the bottom of the telescopic pipe cover;
racks are symmetrically arranged on the top side of the base, through grooves are symmetrically formed in the top side of the top base, stop blocks are arranged at the top ends of the racks in a penetrating mode, an installation plate is arranged on the top side of the top base and located on one side of the through grooves, a servo motor is arranged on the side wall of the installation plate, a driving tooth is arranged at the output end of the servo motor in a penetrating mode through the installation plate, and the driving tooth is meshed with the racks;
the base bottom side is seted up annular mounting groove, mounting groove internally mounted has the gasbag, the base outside symmetry is installed the curb plate, the barrel is installed on the curb plate top side, barrel internally mounted has the spring, the spring bottom is connected with the piston, the connecting rod is installed to the piston bottom side, the connecting rod bottom runs through the barrel and installs the sliding seat.
Preferably, footstock and base are the ring type, the support arm is installed to footstock one side, the control box is installed to the support arm bottom.
Preferably, the top cover is internally provided with a carbon dioxide measuring instrument and a sulfur dioxide measuring instrument which are electrically connected with the PLC inside the control box.
Preferably, the two opposite sides of the rack are provided with sliding grooves, the two opposite sides of the through groove are provided with sliding blocks, and the sliding blocks and the sliding grooves are installed in a sliding mode.
Preferably, the bottom side of the side plate is provided with a limit groove, and the limit groove is matched with the movable seat.
Preferably, a connecting port is formed in the top of the cylinder body, and the connecting port is in conduction connection with the air bag through a guide pipe.
Preferably, the specific operation steps of the analysis device are as follows:
the method comprises the following steps: in the manufacturing process of silicon steel, the contents of carbon dioxide and sulfur dioxide are adjusted in the air during manufacturing of the silicon steel, so that the silicon steel with different contents of carbon and sulfur is manufactured, a servo motor on an installation plate works to drive a driving tooth to rotate, then the driving tooth rotates to drive a meshed rack to move up and down, a guide effect is achieved through a through groove, and at the moment, a base moves up and down to drive a telescopic pipe cover to stretch until the base is in contact with the ground;
step two: before the base is contacted with the ground, the movable seat is firstly contacted with the ground at the moment to drive the connecting rod and the piston to move upwards in the cylinder, the spring is compressed, and meanwhile, air in the cylinder is pressed into the air bag of the mounting groove, so that the air bag is expanded, and when the base is contacted with the ground, the air bag deforms and is attached to the ground, and the sealing property of the interior is ensured;
step three: at the moment, carbon dioxide, sulfur dioxide and air are added into the device respectively through the work of the three-way reversing valve, the content of the carbon dioxide and the sulfur dioxide inside the device is adjusted, and then the silicon steel manufacturing is completed inside the device.
The invention has the beneficial effects that: the servo motor on the mounting plate drives the driving gear to rotate, then the driving gear rotates to drive the meshed rack to move up and down, and the guide effect is achieved through the through groove, at the moment, the base moves up and down to drive the telescopic pipe cover to extend and retract until the base is contacted with the ground, so that the processing environments with different space sizes can be conveniently manufactured, and the silicon steel with different specifications can be conveniently manufactured;
simultaneously before base and ground contact, the sliding seat earlier with ground contact this moment, drive connecting rod and piston and shift up in the barrel, compress the air in the barrel when going on the spring in the gasbag of mounting groove, make the gasbag inflation, and when base and ground contact, gasbag deformation and ground laminating, guarantee inside leakproofness, can carry out the adaptation with different ground and make sealed space, and then guarantee to carry out accurate regulation and control to inside carbon dioxide and sulfur dioxide content, be convenient for follow-up understanding carbon sulfur and silicon steel performance's relation.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1 in accordance with the present invention;
FIG. 3 is a cross-sectional view of the cartridge of the present invention;
fig. 4 is a bottom view of the present invention.
Illustration of the drawings:
1. a top cover; 2. a three-way reversing valve; 3. a top seat; 4. a support arm; 5. a control box; 6. a base; 7. a telescopic pipe cover; 8. penetrating a groove; 9. a rack; 10. a stopper; 11. mounting a plate; 12. a servo motor; 13. a driving tooth; 14. a side plate; 15. a barrel; 16. a connecting port; 17. a spring; 18. a piston; 19. a connecting rod; 20. a movable seat; 21. a limiting groove; 22. mounting grooves; 23. an air bag.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
Specific examples are given below.
Referring to fig. 1 to 4, the device for analyzing the content of carbon and sulfur in the oriented silicon steel comprises a top cover 1, a three-way reversing valve 2, a top seat 3, a base 6 and a telescopic pipe cover 7, wherein the three-way reversing valve 2 is installed at the top of the top cover 1, the top seat 3 is installed at the outer side of the bottom of the top cover 1, the telescopic pipe cover 7 is installed at the bottom side of the top seat 3 in a sealing manner, and the base 6 is installed at the bottom of the telescopic pipe cover 7;
In one embodiment of the invention, the top seat 3 and the base 6 are both circular rings, the supporting arm 4 is arranged on one side of the top seat 3, and the control box 5 is arranged at the bottom of the supporting arm 4.
As an embodiment of the invention, a carbon dioxide measuring instrument and a sulfur dioxide measuring instrument are installed inside the top cover 1, and both the carbon dioxide measuring instrument and the sulfur dioxide measuring instrument are electrically connected with a PLC controller inside the control box 5, so that the carbon dioxide measuring instrument and the sulfur dioxide measuring instrument can measure the content of carbon dioxide and sulfur dioxide inside the device conveniently, and further the PLC controller with the model of FX3SA controls the conduction and the reversing of the three-way reversing valve 2 to adjust the content of air, carbon dioxide and sulfur dioxide inside the device.
As an embodiment of the invention, sliding grooves are formed on two opposite sides of the rack 9, sliding blocks are arranged on two opposite sides of the through groove 8, the sliding blocks and the sliding grooves are installed in a sliding mode, and when the rack 9 moves up and down, a guiding effect is achieved through the matching of the sliding blocks and the sliding grooves.
As an embodiment of the present invention, a limiting groove 21 is formed at the bottom side of the side plate 14, and the limiting groove 21 is adapted to the movable seat 20, so that the retracted movable seat 20 can be conveniently accommodated in the limiting groove 21.
In one embodiment of the present invention, a connection port 16 is opened at the top of the cylinder 15, the connection port 16 is in conductive connection with the air bag 23 through a conduit, and the piston 18 moves in the cylinder 15 to move the air in the cylinder 15 and the air in the air bag 23, so as to adjust the shape of the air bag 23 and adapt to the ground.
As an embodiment of the invention, the specific operation steps of the analysis device are as follows:
the method comprises the following steps: in the manufacturing process of silicon steel, the content of carbon dioxide and sulfur dioxide is adjusted in the air during manufacturing of the silicon steel, so that the silicon steel with different carbon and sulfur contents is manufactured, a servo motor 12 on an installation plate 11 works to drive a driving tooth 13 to rotate, then the driving tooth 13 rotates to drive a meshed rack 9 to move up and down, and the guide effect is achieved through a through groove 8, at the moment, a base 6 moves up and down to drive a telescopic pipe cover 7 to stretch until the base 6 is in contact with the ground;
step two: before the base 6 contacts with the ground, the movable seat 20 contacts with the ground firstly at the moment, the connecting rod 19 and the piston 18 are driven to move upwards in the cylinder 15, the spring 17 is compressed, meanwhile, air in the cylinder 15 is pressed into the air bag 23 in the mounting groove 22, the air bag 23 is expanded, and when the base 6 contacts with the ground, the air bag 23 deforms and is attached to the ground, and the sealing performance of the interior is guaranteed;
step three: at the moment, carbon dioxide, sulfur dioxide and air are added into the device respectively through the work of the three-way reversing valve 2, the content of the carbon dioxide and the sulfur dioxide inside the device is adjusted, and then the silicon steel manufacturing is completed inside the device.
The working principle is as follows: the servo motor 12 on the mounting plate 11 works to drive the driving tooth 13 to rotate, then the driving tooth 13 rotates to drive the meshed rack 9 to move up and down, and the guide effect is achieved through the through groove 8, at the moment, the base 6 moves up and down to drive the telescopic pipe cover 7 to extend and retract until the base 6 is in contact with the ground, so that the processing environments with different space sizes can be manufactured conveniently, and the silicon steel manufacturing with different specifications can be facilitated;
simultaneously before base 6 and ground contact, sliding seat 20 earlier with ground contact this moment, drive connecting rod 19 and piston 18 and shift up in barrel 15, carry out the air in barrel 15 when compressing spring 17 and impress in the gasbag 23 of mounting groove 22, make gasbag 23 inflation, and when base 6 and ground contact, gasbag 23 deformation and ground laminating, guarantee inside leakproofness, can carry out the adaptation with different ground and make sealed space, and then guarantee to carry out accurate regulation and control to inside carbon dioxide and sulfur dioxide content, be convenient for follow-up understanding the relation of carbon sulphur and silicon steel performance.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The device for analyzing the content of carbon and sulfur in the oriented silicon steel is characterized by comprising a top cover (1), a three-way reversing valve (2), a top seat (3), a base (6) and a telescopic pipe cover (7), wherein the three-way reversing valve (2) is installed at the top of the top cover (1), the top seat (3) is installed on the outer side of the bottom of the top cover (1), the telescopic pipe cover (7) is installed at the bottom side of the top seat (3) in a sealing mode, and the base (6) is installed at the bottom of the telescopic pipe cover (7);
racks (9) are symmetrically installed on the top side of the base (6), through grooves (8) are symmetrically formed in the top side of the top seat (3), a stop block (10) is installed at the top end of each rack (9) through the through groove (8), an installation plate (11) is installed on the top side of the top seat (3) and located on one side of the through groove (8), a servo motor (12) is installed on the side wall of the installation plate (11), a driving tooth (13) is installed at the output end of the servo motor (12) through the installation plate (11), and the driving tooth (13) is meshed with the racks (9);
annular mounting groove (22) have been seted up to base (6) bottom side, mounting groove (22) internally mounted has gasbag (23), curb plate (14) are installed to base (6) outside symmetry, barrel (15) are installed to curb plate (14) top side, barrel (15) internally mounted has spring (17), spring (17) bottom is connected with piston (18), connecting rod (19) are installed to piston (18) bottom side, connecting rod (19) bottom is run through barrel (15) and is installed sliding seat (20).
2. The apparatus for analyzing the carbon and sulfur content in the oriented silicon steel according to claim 1, wherein the top seat (3) and the base seat (6) are both circular rings, a supporting arm (4) is installed on one side of the top seat (3), and a control box (5) is installed at the bottom of the supporting arm (4).
3. The apparatus for analyzing the carbon and sulfur content in the oriented silicon steel according to claim 1, wherein a carbon dioxide measuring instrument and a sulfur dioxide measuring instrument are installed inside the top cover (1), and both the carbon dioxide measuring instrument and the sulfur dioxide measuring instrument are electrically connected with a PLC (programmable logic controller) inside the control box (5).
4. The device for analyzing the content of carbon and sulfur in the oriented silicon steel as claimed in claim 1, wherein sliding grooves are formed in two opposite sides of the rack (9), sliding blocks are arranged on two opposite sides of the through groove (8), and the sliding blocks are slidably mounted with the sliding grooves.
5. The apparatus for analyzing the carbon and sulfur content in the oriented silicon steel according to claim 1, wherein a limiting groove (21) is formed in the bottom side of the side plate (14), and the limiting groove (21) is matched with the movable seat (20).
6. The device for analyzing the carbon and sulfur content in the oriented silicon steel according to claim 1, wherein a connection port (16) is formed at the top of the cylinder (15), and the connection port (16) is in conduction connection with the air bag (23) through a guide pipe.
7. The apparatus of any one of claims 1 to 6, wherein the apparatus is operated by the following steps:
the method comprises the following steps: in the manufacturing process of silicon steel, the content of carbon dioxide and sulfur dioxide is adjusted in the air during manufacturing of the silicon steel, so that the silicon steel with different carbon and sulfur contents is manufactured, a servo motor (12) on an installation plate (11) works to drive a driving tooth (13) to rotate, then the driving tooth (13) rotates to drive a meshed rack (9) to move up and down, a guide effect is achieved through a through groove (8), at the moment, a base (6) moves up and down, and a telescopic pipe cover (7) is driven to stretch and retract until the base (6) is in contact with the ground;
step two: before the base (6) is in contact with the ground, the movable seat (20) is in contact with the ground firstly at the moment, the connecting rod (19) and the piston (18) are driven to move upwards in the cylinder body (15), the spring (17) is compressed, meanwhile, air in the cylinder body (15) is pressed into the air bag (23) of the mounting groove (22), the air bag (23) is expanded, and when the base (6) is in contact with the ground, the air bag (23) deforms and is attached to the ground, and the sealing performance of the interior is guaranteed;
step three: at the moment, carbon dioxide, sulfur dioxide and air are added into the device respectively through the work of the three-way reversing valve (2), the content of the carbon dioxide and the sulfur dioxide inside the device is adjusted, and then the silicon steel manufacturing is completed inside the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011302182.XA CN112415143A (en) | 2020-11-19 | 2020-11-19 | Device for analyzing content of carbon and sulfur in oriented silicon steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011302182.XA CN112415143A (en) | 2020-11-19 | 2020-11-19 | Device for analyzing content of carbon and sulfur in oriented silicon steel |
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| Publication Number | Publication Date |
|---|---|
| CN112415143A true CN112415143A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011302182.XA Pending CN112415143A (en) | 2020-11-19 | 2020-11-19 | Device for analyzing content of carbon and sulfur in oriented silicon steel |
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| CN (1) | CN112415143A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0518962A (en) * | 1991-07-15 | 1993-01-26 | Nippon Steel Corp | Method for analyzing carbon and sulfur contents of metallic sample |
| CN104195320A (en) * | 2014-09-04 | 2014-12-10 | 新万鑫（福建）精密薄板有限公司 | Inner hood of high-temperature hood type furnace for oriented silicon steel |
| CN204158148U (en) * | 2014-09-19 | 2015-02-18 | 高锋 | Scalable case |
| CN208818640U (en) * | 2018-09-30 | 2019-05-03 | 临沂鑫海新型材料有限公司 | A kind of dilval finished product detection infrared carbon sulfur analyzer |
| CN209517991U (en) * | 2019-02-21 | 2019-10-22 | 刘东辉 | A kind of forest seedling nursing heating apparatus |
| CN210738818U (en) * | 2019-07-30 | 2020-06-12 | 长沙融江风机有限公司 | Be used for roots's fan silencing device |
| CN112626447A (en) * | 2020-12-14 | 2021-04-09 | 海安华诚新材料有限公司 | Atmosphere control process of high-magnetic-induction oriented silicon steel with excellent magnetism |
-
2020
- 2020-11-19 CN CN202011302182.XA patent/CN112415143A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0518962A (en) * | 1991-07-15 | 1993-01-26 | Nippon Steel Corp | Method for analyzing carbon and sulfur contents of metallic sample |
| CN104195320A (en) * | 2014-09-04 | 2014-12-10 | 新万鑫（福建）精密薄板有限公司 | Inner hood of high-temperature hood type furnace for oriented silicon steel |
| CN204158148U (en) * | 2014-09-19 | 2015-02-18 | 高锋 | Scalable case |
| CN208818640U (en) * | 2018-09-30 | 2019-05-03 | 临沂鑫海新型材料有限公司 | A kind of dilval finished product detection infrared carbon sulfur analyzer |
| CN209517991U (en) * | 2019-02-21 | 2019-10-22 | 刘东辉 | A kind of forest seedling nursing heating apparatus |
| CN210738818U (en) * | 2019-07-30 | 2020-06-12 | 长沙融江风机有限公司 | Be used for roots's fan silencing device |
| CN112626447A (en) * | 2020-12-14 | 2021-04-09 | 海安华诚新材料有限公司 | Atmosphere control process of high-magnetic-induction oriented silicon steel with excellent magnetism |
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Application publication date: 20210226 |
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