CN112008269A - Device for compressing protective gas by using laser cutting residual heat - Google Patents
Device for compressing protective gas by using laser cutting residual heat Download PDFInfo
- Publication number
- CN112008269A CN112008269A CN202010948194.3A CN202010948194A CN112008269A CN 112008269 A CN112008269 A CN 112008269A CN 202010948194 A CN202010948194 A CN 202010948194A CN 112008269 A CN112008269 A CN 112008269A
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- face
- pipe
- block
- sliding
- inner cavity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a device for using laser cutting residual heat as compressed protective gas, which comprises a shell, wherein an inner cavity is arranged in the shell, a temperature sensor is fixedly arranged on the left wall of the shell in a penetrating manner, a steam device is arranged in the inner cavity and comprises a steam box fixedly connected with the upper end surface of the temperature sensor.
Description
Technical Field
The invention relates to the technical field of moxibustion treatment, in particular to a device for using laser cutting waste heat as compressed protective gas.
Background
The laser cutting technology is widely applied to the processing of metal and nonmetal materials, can greatly reduce the processing time, reduce the processing cost and improve the quality of workpieces.
The protective gas is needed in the laser cutting process, the traditional laser cutting device needs an additional compressed gas device to enable the protective gas to meet the requirement, the ablation speed of the cutting material is different due to different temperatures in the cutting process, the required protective gas is often different, the conveying amount of the protective gas of the traditional laser cutting device is the same, and the device for compressing the protective gas by using the residual temperature of the laser cutting can solve the problems.
Disclosure of Invention
In order to solve the problems, the present embodiment provides a device for using laser cutting residual heat as compressed shielding gas, which comprises a housing, an inner cavity is arranged in the housing, a temperature sensor is fixedly arranged on the left wall of the housing in a penetrating manner, a steam device is arranged in the inner cavity, the steam device comprises a steam box fixedly connected with the upper end face of the temperature sensor, a steam box body is arranged in the steam box, a steam pipe is fixedly arranged on the right wall of the steam box in a penetrating manner, a first shaft is rotationally arranged on the rear wall of the inner cavity, a gear is fixedly arranged on the first shaft, six annular fan blades are fixedly arranged outside the gear, a blocking fan blade longer than the fan blades is fixedly arranged outside the gear, and the fan blades are used for driving the gear to rotate after being stressed, the inner cavity is internally provided with an air compressing device, the air compressing device comprises an air compressing box fixedly connected with the right wall of the inner cavity, an air compressing cavity is arranged in the air compressing box, a push rod is arranged in the air compressing cavity in a left-right sliding manner, a first fixed block is fixedly arranged on the upper wall of the inner cavity, a second fixed block is fixedly arranged on the lower end face of the first fixed block, a first sliding groove is arranged in the second fixed block, a first sliding block is arranged in the first sliding groove in a left-right sliding manner, a push rod is connected between the right end wall of the first sliding block and the left end wall of the push block, the first sliding block moves left and right to push the push block to move left and right, the shell is further provided with a limiting device, the limiting device comprises a pressure pipe fixedly connected with the upper wall of the shell in a penetrating manner, the lower end of the pressure pipe is fixedly provided with a pressure, a second sliding block is arranged in the second sliding groove in an up-and-down sliding manner, a connecting spring is connected between the lower end wall of the second sliding block and the lower side wall of the second sliding groove, a third sliding groove with a downward opening is formed in a third fixing block, a third sliding block is arranged in the third sliding groove in an up-and-down sliding manner, a blocking rod is fixedly arranged on the lower end face of the third sliding block, a first connecting rod is hinged between the second sliding block and the third sliding block, the downward movement of the second sliding block pushes the downward movement of the third sliding block to drive the downward movement of the blocking rod, a storage box is fixedly arranged on the upper end face of the pressure pipe, a protective gas control device is arranged outside the shell and comprises a connecting block which is arranged by penetrating through the shell, a protective gas pipe is fixedly arranged on the left end face of the storage box, a hinged seat wheel is rotationally arranged in the protective gas pipe, and six annular, six pieces of opening leaves forming a circular shape are arranged on the protective gas pipe in a sliding mode, an arc sliding groove in sliding connection with the hinged seat is formed in each opening leaf, a second connecting rod is hinged between the connecting block and the hinged seat wheel, and the connecting block moves up and down so that the hinged seat wheel rotates to open the opening leaves.
Preferably, the steam device further comprises a fourth fixing block fixedly connected with the upper wall surface of the inner cavity, the fourth fixing block is provided with a fourth sliding groove which is vertically opened, a fourth sliding block fixedly connected with the lower end surface of the connecting block is arranged in the fourth sliding groove in a vertically sliding manner, a balloon is connected to the outer surface of the upper wall of the steam box, water is filled in the steam box, and steam sprayed out of the steam pipe is used for pushing the gear to rotate.
Preferably, the air compressing device further comprises a connecting rod fixedly connected with the lower end face of the first sliding block, an air inlet pipe is arranged on the lower end face of the air compressing box in a penetrating mode, a switch piece connected with the vertical section of the air inlet pipe in a sliding mode is fixedly arranged on the right end face of the connecting rod, a third connecting rod is hinged between the first shaft and the first sliding block, a pipeline inner cavity is arranged in the air inlet pipe, a fan fixing rod is fixedly arranged in the horizontal end of the air inlet pipe, a fan shaft is fixedly arranged on the fan fixing rod, a fan is arranged on the fan shaft in a rotating mode, and the connecting rod moves to the right to push the switch piece to move to the right.
Preferably, the limiting device further comprises a straight push rod fixedly connected with the upper end face of the first sliding block, a sliding groove seat is fixedly arranged on the first fixing block, a fifth fixing block is fixedly arranged on the upper wall face of the inner cavity, a fifth sliding groove is formed in the fifth fixing block, a fifth sliding block is arranged in the connecting piece in a left-right sliding mode, a slotting telescopic rod is hinged between the fifth sliding block and the straight push rod, a connecting rod sliding groove connected with the sliding groove seat in a sliding mode is formed in the slotting telescopic rod, and the straight push rod moves to the right to drive the fifth sliding block to move to the left.
Preferably, the protective gas control device further comprises a through pipe which is fixedly connected with the outer end face of the upper wall of the air compression box and penetrates through the shell, a through pipe inner cavity is formed in the through pipe, a pressure reducing valve is fixedly arranged on the upper end face of the through pipe, a connecting pipe is connected between the end face of the pressure reducing valve and the outer end face of the lower wall of the storage box, a connecting piece which is connected with the through pipe in a sliding manner is fixedly arranged on the right end face of the fifth slider, a storage inner cavity is formed in the storage box, and the storage inner cavity is used for storing gas after compression.
The invention has the beneficial effects that: the in-process of laser cutting needs protective gas, and protective gas needs the compression, and this device utilizes the waste heat to compress for protective gas, and traditional laser cutting device needs outer additional compressed gas device to make protective gas can meet the requirements to the different ablation speeds to the cutting material of temperature are different in the cutting process, and required protective gas often also is different this moment, and this device can be according to the different adjustment protective gas delivery volume of temperature.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of the overall structure of an apparatus for applying laser cutting residual heat as a compressed shielding gas according to the present invention;
FIG. 2 is a schematic view of the structure in the direction A-A in FIG. 1;
FIG. 3 is a schematic view of the structure of FIG. 2 in a different operating state;
FIG. 4 is an enlarged schematic view of the position B in FIG. 1;
fig. 5 is an enlarged schematic view of the position C in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a device for using laser cutting residual heat as compressed protective gas, which is mainly applied to the process of cutting metal materials by laser, and the invention is further explained by combining the attached drawings of the invention: the invention relates to a device for using laser cutting residual heat as compressed protective gas, which comprises a shell 11, wherein an inner cavity 12 is arranged in the shell 11, a temperature sensor 44 is fixedly arranged on the left wall of the shell 11 in a penetrating manner, a steam device 901 is arranged in the inner cavity 12, the steam device 901 comprises a steam box 46 fixedly connected with the upper end surface of the temperature sensor 44, a steam box body 45 is arranged in the steam box 46, a steam pipe 42 is fixedly arranged on the right wall of the steam box 46 in a penetrating manner, a first shaft 37 is rotatably arranged on the rear wall of the inner cavity 12, a gear 38 is fixedly arranged on the first shaft 37, six annular fan blades 40 are fixedly arranged outside the gear 38, a blocking fan blade 39 longer than the fan blade 40 is fixedly arranged outside the gear 38, the fan blade 40 is used for driving the gear 38 to rotate after being stressed, an air compressing device 902 is arranged in the inner cavity 12, the air compressing device 902 comprises an air compressing box 26 fixedly connected with the, the pneumatic device is characterized in that a pneumatic chamber 25 is arranged in the pneumatic chamber 26, a push rod 28 is arranged in the pneumatic chamber 25 in a left-right sliding manner, a first fixed block 14 is fixedly arranged on the upper wall of the inner cavity 12, a second fixed block 32 is fixedly arranged on the lower end face of the first fixed block 14, a first sliding chute 33 is arranged in the second fixed block 32, a first sliding block 35 is arranged in the first sliding chute 33 in a left-right sliding manner, a push rod 28 is connected between the right end wall of the first sliding block 35 and the left end wall of the pushing block 27, the first sliding block 35 moves left and right to push the pushing block 27 to move left and right, a limiting device 903 is further arranged on the shell 11, the limiting device 903 comprises a pressure pipe 55 fixedly connected with the upper wall of the shell 11 in a penetrating manner, a pressure sensor 56 is fixedly arranged at the lower end of the pressure pipe 55, a third fixed block 54 is fixedly arranged on, a second sliding block 66 is arranged in the second sliding groove 67 in a vertically sliding manner, a connecting spring 68 is connected between the lower end wall of the second sliding block 66 and the lower side wall of the second sliding groove 67, a third sliding groove 71 with a downward opening is arranged on the third fixing block 54, a third sliding block 69 is arranged in the third sliding groove 71 in a vertically sliding manner, a blocking rod 70 is fixedly arranged on the lower end face of the third sliding block 69, a first connecting rod 72 is hinged between the second sliding block 66 and the third sliding block 69, the downward movement of the second sliding block 66 pushes the third sliding block 69 to move downward to drive the blocking rod 70 to move downward, a storage box 58 is fixedly arranged on the upper end face of the pressure pipe 55, a protective gas control device 904 is arranged outside the shell 11, the protective gas control device 904 comprises a connecting block 49 which is arranged to penetrate through the shell 11, and a protective gas pipe 57 is fixedly arranged on the left end face of the storage, the rotation is equipped with articulated seat wheel 51 in the protective gas pipe 57, it is annular articulated seat 62 to be equipped with six on the articulated seat wheel 51, it forms circular shape open leaf 60 to slide on the protective gas pipe 57 to be equipped with six, open be equipped with on the leaf 60 with articulated seat 62 sliding connection's circular arc spout 61, connecting block 49 with it is equipped with second connecting rod 50 to articulate between the articulated seat wheel 51, thereby connecting block 49 reciprocates articulated seat wheel 51 rotates open leaf 60 is opened.
According to an embodiment, the steam device 901 is described in detail below, the steam device 901 further includes a fourth fixed block 48 fixedly connected to an upper wall surface of the inner cavity 12, the fourth fixed block 48 is provided with a fourth sliding groove 52 vertically opened, a fourth sliding block 53 fixedly connected to a lower end surface of the connecting block 49 is vertically slidably disposed in the fourth sliding groove 52, an outer surface of an upper wall of the steam box 46 is connected to and provided with a balloon 47, the steam box 45 is filled with water 43, and steam is sprayed from the steam pipe 42 to drive the gear 38 to rotate.
According to an embodiment, the following detailed description is provided for the air compressing device 902, the air compressing device 902 further includes a connecting rod 34 fixedly connected to a lower end surface of the first slider 35, an air inlet pipe 30 penetrates through a lower end surface of the air compressing box 26, a switch plate 29 slidably connected to a vertical section of the air inlet pipe 30 is fixedly disposed on a right end surface of the connecting rod 34, a third connecting rod 36 is hinged between the first shaft 37 and the first slider 35, a pipeline inner cavity 31 is disposed in the air inlet pipe 30, a fan fixing rod 64 is fixedly disposed in a horizontal end of the air inlet pipe 30, a fan shaft 65 is fixedly disposed on the fan fixing rod 64, a fan 63 is rotatably disposed on the fan shaft 65, and the connecting rod 34 moves to push the switch plate 29 to move to the right.
According to an embodiment, the limiting device 903 is described in detail below, the limiting device 903 further includes a straight push rod 41 fixedly connected to an upper end surface of the first slider 35, a chute seat 16 is fixedly disposed on the first fixed block 14, a fifth fixed block 17 is fixedly disposed on an upper wall surface of the inner cavity 12, a fifth chute 21 is disposed in the fifth fixed block 17, a fifth slider 18 is slidably disposed in the connecting piece 22 from left to right, a slotted telescopic rod 13 is hinged between the fifth slider 18 and the straight push rod 41, a connecting rod chute 15 slidably connected to the chute seat 16 is disposed on the slotted telescopic rod 13, and the straight push rod 41 moves from right to drive the fifth slider 18 to move from left.
According to an embodiment, a detail description is provided below for the protective gas control device 904, the protective gas control device 904 further includes a through pipe 24 fixedly connected with the outer end surface of the upper wall of the compressed gas box 26 and penetrating through the housing 11, a through pipe inner cavity 23 is arranged in the through pipe 24, a pressure reducing valve 20 is fixedly arranged on the upper end surface of the through pipe 24, a connecting pipe 19 is connected between the end surface of the pressure reducing valve 20 and the outer end surface of the lower wall of the storage box 58, a connecting piece 22 slidably connected with the through pipe 24 is fixedly arranged on the right end surface of the fifth slider 18, a storage inner cavity 59 is arranged in the storage box 58, and the storage inner cavity 59 is used for storing compressed gas.
The following describes in detail the use steps of the apparatus for using laser cutting residual heat as a compressed shielding gas in the present invention with reference to fig. 1 to 5: initially, the temperature sensor 44 is at a low temperature, the leftmost end of the first slider 35, the lowermost end of the fourth slider 53, the uppermost end of the second slider 66, the opening of the opening leaf 60 is the smallest, the switch sheet 29 is turned on, and the connecting sheet 22 is closed.
In preparation, the temperature sensor 44 begins to rise, the fan 63 rotates, and the gas is introduced into the pressurized air chamber 25.
When the device works, steam generated by heating water 43 flows out of the steam pipe 42, the fan blades 40 push, the gear 38 rotates, the third connecting rod 36 swings, the first sliding block 35 pushes right, the connecting rod 34 pushes right, the switch plate 29 closes a channel of the inner cavity 31 of the pipeline, the push rod 28 pushes right, the push block 27 pushes right, gas in the air pressure cavity 25 is compressed, meanwhile, the straight push rod 41 pushes right, the slotted telescopic rod 13 swings, the fifth fixing block 17 moves left, the connecting sheet 22 opens a channel passing through the inner cavity 23 of the pipeline, gas in the air pressure cavity 25 passes through the pressure reducing valve 20 and enters the storage inner cavity 59 through the connecting pipe 19, when the pressure in the storage inner cavity 59 increases, the pressure sensor 56 senses the pressure to increase and magnetize, the second sliding block 66 moves downwards, the first connecting rod 72 swings, the third sliding block 69 moves downwards, the blocking rod 70 is blocked with the blocking fan, the switch sheet 29 and the connecting sheet 22 are both in a closed state;
when the temperature of the temperature sensor 44 is high, the gas in the steam box 45 is heated to expand, the balloon 47 is enlarged, the fourth sliding block 53 moves upwards, the connecting block 49 moves upwards, the second connecting rod 50 swings, the hinged seat wheel 51 rotates, the arc sliding groove 61 slides in the hinged seat 62, the opening blade 60 slides, the opening is large, and the introduced protective gas is increased during laser cutting.
The invention has the beneficial effects that: the in-process of laser cutting needs protective gas, and protective gas needs the compression, and this device utilizes the waste heat to compress for protective gas, and traditional laser cutting device needs outer additional compressed gas device to make protective gas can meet the requirements to the different ablation speeds to the cutting material of temperature are different in the cutting process, and required protective gas often also is different this moment, and this device can be according to the different adjustment protective gas delivery volume of temperature.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a device that laser cutting waste heat is used as compressed protective gas, includes the shell, be equipped with the inner chamber in the shell, the shell left wall runs through fixed temperature detector that is equipped with, its characterized in that: the inner cavity is internally provided with a steam device, the steam device comprises a steam box fixedly connected with the upper end face of the temperature sensor, a steam box body is arranged in the steam box, the right wall of the steam box is fixedly provided with a steam pipe in a penetrating way, the rear wall of the inner cavity is rotatably provided with a first shaft, the first shaft is fixedly provided with a gear, the gear is externally fixedly provided with six annular fan blades, the gear is externally fixedly provided with a blocking fan blade longer than the fan blades, the inner cavity is internally provided with an air compressing device, the air compressing device comprises an air compressing box fixedly connected with the right wall of the inner cavity, the air compressing box is internally provided with an air compressing cavity, the air compressing cavity is internally provided with a push rod in a left-right sliding way, the upper wall of the inner cavity is fixedly provided with a first fixed block, the lower end face of the first fixed block is fixedly provided with a second fixed block, the second fixed block, a push rod is connected between the right end wall of the first slider and the left end wall of the push block, a limiting device is further arranged on the shell and comprises a pressure pipe which is fixedly connected with the upper wall of the shell in a penetrating manner, a pressure sensor is fixedly arranged at the lower end of the pressure pipe, a third fixed block is fixedly arranged on the rear wall of the inner cavity and is provided with a second chute with an upward opening, a second slider is arranged in the second chute in a vertical sliding manner, a connecting spring is connected between the lower end wall of the second slider and the lower side wall of the second chute, a third chute with a downward opening is arranged on the third fixed block, a third slider is arranged in the third chute in a vertical sliding manner, a blocking rod is fixedly arranged on the lower end face of the third slider, a first connecting rod is hinged between the second slider and the third slider, and a storage box is fixedly arranged on the upper end face of the pressure pipe, the shell is equipped with accuse protective gas device outward, accuse protective gas device include with the shell runs through the connecting block that is equipped with, the fixed protective gas pipe that is equipped with of bin left end face, the protective gas pipe internal rotation is equipped with articulated seat wheel, articulated seat takes turns to be equipped with six and is annular articulated seats, the last slip of protective gas pipe is equipped with six and constitutes the circular shape leaf of opening, open be equipped with on the leaf with articulated seat sliding connection's circular arc spout, the connecting block with it is equipped with the second connecting rod to articulate between the seat wheel.
2. The apparatus for applying laser cutting residual heat as a compressed shielding gas according to claim 1, wherein: the steam device further comprises a fourth fixing block fixedly connected with the upper wall surface of the inner cavity, the fourth fixing block is provided with a fourth sliding groove which is vertically opened, a fourth sliding block fixedly connected with the lower end surface of the connecting block is arranged in the fourth sliding groove in a vertically sliding mode, a balloon is connected to the outer surface of the upper wall of the steam box, and water is filled in the steam box.
3. The apparatus for applying laser cutting residual heat as a compressed shielding gas according to claim 1, wherein: the air compressing device further comprises a connecting rod fixedly connected with the lower end face of the first sliding block, an air inlet pipe is arranged on the lower end face of the air compressing box in a penetrating mode, a switch piece connected with the vertical section of the air inlet pipe in a sliding mode is fixedly arranged on the right end face of the connecting rod, a third connecting rod is hinged between the first sliding block and the first shaft, a pipeline inner cavity is arranged in the air inlet pipe, a fan fixing rod is fixedly arranged in the horizontal end of the air inlet pipe, a fan shaft is fixedly arranged on the fan fixing rod, and a fan is arranged on the fan shaft in a rotating mode.
4. The apparatus for applying laser cutting residual heat as a compressed shielding gas according to claim 1, wherein: the limiting device further comprises a straight push rod fixedly connected with the upper end face of the first sliding block, a sliding groove seat is fixedly arranged on the first fixing block, a fifth fixing block is fixedly arranged on the upper wall face of the inner cavity, a fifth sliding groove is formed in the fifth fixing block, a fifth sliding block is arranged in the connecting piece in a left-right sliding mode, a slotting telescopic rod is hinged between the fifth sliding block and the straight push rod, and a connecting rod sliding groove connected with the sliding groove seat in a sliding mode is formed in the slotting telescopic rod.
5. The apparatus for applying laser cutting residual heat as a compressed shielding gas according to claim 1, wherein: the protective gas control device further comprises a through pipe which is fixedly connected with the outer end face of the upper wall of the air compression box and penetrates through the shell, a through pipe inner cavity is formed in the through pipe, a pressure reducing valve is fixedly arranged on the upper end face of the through pipe, a connecting pipe is connected between the end face of the pressure reducing valve end face and the outer end face of the lower wall of the storage box, a fifth sliding block right end face is fixedly arranged with a connecting piece which is connected through a pipe in a sliding manner, and a storage inner cavity is formed in the storage box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010948194.3A CN112008269A (en) | 2020-09-10 | 2020-09-10 | Device for compressing protective gas by using laser cutting residual heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010948194.3A CN112008269A (en) | 2020-09-10 | 2020-09-10 | Device for compressing protective gas by using laser cutting residual heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112008269A true CN112008269A (en) | 2020-12-01 |
Family
ID=73522301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010948194.3A Withdrawn CN112008269A (en) | 2020-09-10 | 2020-09-10 | Device for compressing protective gas by using laser cutting residual heat |
Country Status (1)
| Country | Link |
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| CN (1) | CN112008269A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639061A (en) * | 2021-08-06 | 2021-11-12 | 江苏圣泰阀门有限公司 | Double-gate wedge gate valve |
-
2020
- 2020-09-10 CN CN202010948194.3A patent/CN112008269A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639061A (en) * | 2021-08-06 | 2021-11-12 | 江苏圣泰阀门有限公司 | Double-gate wedge gate valve |
| CN113639061B (en) * | 2021-08-06 | 2024-05-28 | 江苏圣泰阀门有限公司 | Double-flashboard wedge gate valve |
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Application publication date: 20201201 |