CN117680786A - Nozzle, preparation method thereof and welding equipment - Google Patents
Nozzle, preparation method thereof and welding equipment Download PDFInfo
- Publication number
- CN117680786A CN117680786A CN202410044310.7A CN202410044310A CN117680786A CN 117680786 A CN117680786 A CN 117680786A CN 202410044310 A CN202410044310 A CN 202410044310A CN 117680786 A CN117680786 A CN 117680786A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- porous structure
- preform
- liquid
- pore
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000007788 liquid Substances 0.000 claims description 44
- 239000011148 porous material Substances 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 24
- 238000001746 injection moulding Methods 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 74
- 230000008569 process Effects 0.000 description 17
- 239000012530 fluid Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 6
- 229910001338 liquidmetal Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 230000003313 weakening effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000026058 directional locomotion Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/08—Soldering by means of dipping in molten solder
- B23K1/085—Wave soldering
-
- 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
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a nozzle, a preparation method thereof and welding equipment. The nozzle comprises a nozzle body and a porous structure; a nozzle channel is formed in the nozzle body; the porous structure is arranged in the nozzle channel; the porous structure comprises a main hole structure and a communicating hole structure, wherein the main hole of the main hole structure is communicated with the communicating hole of the communicating hole structure, and the aperture of the main hole is different from that of the communicating hole. The technical scheme of the invention provides the nozzle capable of automatically and effectively improving the instability of tin waves.
Description
Technical Field
The invention relates to the technical field of welding equipment, in particular to a nozzle, a preparation method thereof and welding equipment.
Background
The selective wave soldering technology is a special type of soldering technology developed on the basis of wave soldering. The stability of tin wave is crucial to welding effect during selective welding, tin wave overflow is realized through the magnetic field pushing of an electromagnetic pump in a tin cylinder, in the process of tin wave directional movement, the tin wave near a cylinder wall is gradually lower than the tin liquid flow rate near a center direction due to repeated contact and friction with the cylinder wall, so that boundary layer separation phenomenon occurs, the tin wave advancing direction near the cylinder wall becomes chaotic, the tin wave overflow is one of generation sources of turbulence in the tin wave, and in addition, the electromagnetic pump is continuously influenced by external effects in long-term operation, and the method comprises the following steps: thermal shock in the tin cylinder, impurities generated in the welding process, changes of magnetic flux, natural aging of the electromagnetic pump and other factors, so that the performance of the electromagnetic pump is affected, and tin wave instability occurs. The unstable tin wave can cause the problems of poor welding such as tin connection, insufficient tin penetration, empty welding, tin beads and the like after selective welding.
In the related art, passive measures such as wire stopping maintenance or welding parameter adjustment are generally adopted to solve the problem of unstable tin wave, and the improvement effect is poor.
Disclosure of Invention
The invention mainly aims to provide a nozzle, and aims to provide a nozzle capable of automatically and effectively improving tin wave instability.
To achieve the above object, the present invention provides a nozzle comprising:
the nozzle comprises a nozzle body, wherein a nozzle channel is formed in the nozzle body;
a porous structure disposed within the nozzle channel; the porous structure comprises a main pore structure and a communication pore structure, wherein the main pore of the main pore structure is communicated with the communication pore of the communication pore structure, and the pore diameter of the main pore is different from that of the communication pore.
In an embodiment of the invention, the porous structure is a porous metal structure.
In an embodiment of the invention, the porous metal structural member comprises at least one of copper, stainless steel, titanium alloy, aluminum.
In an embodiment of the invention, the porous structure is disposed between a liquid inlet and a liquid outlet of the nozzle channel.
In an embodiment of the present invention, defining the pore diameter of the porous structure as R, the condition is satisfied: r >300 μm.
The invention also provides a preparation method for preparing the nozzle, which comprises the following steps:
providing a nozzle body;
filling a preform in a nozzle channel of the nozzle body;
applying pressure to the preforms such that a gap is formed between at least some of the preforms;
adding injection molding liquid into the nozzle channel so that the injection molding liquid is filled into the gap;
the preform is removed to form a porous structure within the nozzle channel.
In one embodiment of the invention, the preform comprises a salt;
and/or the injection molding liquid is a metal liquid.
In one embodiment of the present invention, the step of "adding injection molding liquid into the nozzle channel" includes:
and sucking the injection molding liquid into the nozzle channel through negative pressure.
In an embodiment of the present invention, before the step of "removing the preform", further includes:
and cooling and solidifying the injection liquid for a preset time.
In one embodiment of the present invention, the step of "removing the preform" includes:
water is added to the nozzle channel to flush and/or dissolve the preform.
The invention also proposes a welding device comprising a nozzle comprising:
the nozzle comprises a nozzle body, wherein a nozzle channel is formed in the nozzle body;
and the porous structure is arranged in the nozzle channel.
In the nozzle provided by the invention, the porous structure is arranged in the nozzle channel of the nozzle body, so that turbulent flow waves collide and rub with the hole wall in the porous structure in the process of passing through the porous structure, the opposite waves are swayed to counter the original waves while the flow speed of the turbulent flow waves is slowed down, the process is repeated in the porous structure, so that the turbulent flow waves are continuously dissipated, the disturbance of the turbulent flow on the metal tin liquid flow is weakened, the porous structure can generate stronger resistance and weakening effects on the fluid when the tin waves in the turbulent flow state are encountered, and finally, the tin waves overflowing out of the nozzle are in a stable laminar flow state, so that the nozzle can automatically and effectively solve the problem of instability of the tin waves.
Therefore, the nozzle provided by the invention can effectively inhibit tin wave turbulence caused by equipment abnormality, and can reduce scrapping and abnormal shutdown in the production process of products.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a nozzle according to an embodiment of the present invention;
FIG. 2 is a flow chart of an embodiment of a method of manufacturing a nozzle according to the present invention.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Nozzle | 20 | Porous structure |
| 10 | Nozzle body | 21 | Perforating the hole |
| 11 | Nozzle channel |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The present invention provides a nozzle 100, and aims to provide a nozzle 100 capable of automatically improving tin wave instability so as to improve the working efficiency.
Referring to fig. 1 in combination, in one embodiment of a nozzle 100 of the present invention, the nozzle 100 includes a nozzle body 10 and a porous structure 20; a nozzle passage 11 is formed in the nozzle body 10; a porous structure 20 is provided within the nozzle channel 11.
It can be understood that in the nozzle 100 according to the present invention, by disposing the porous structure 20 in the nozzle channel 11 of the nozzle body 10, the turbulent wave collides and rubs with the hole wall in the porous structure 20 during the process of passing through the porous structure 20, and the opposite wave is swayed to counter the original wave while the flow rate of the turbulent wave is slowed down, and the process is repeated inside the porous structure 20, so that the turbulent wave is continuously dissipated, and disturbance of the turbulent flow to the metal tin liquid flow is weakened, so that the porous structure 20 can generate stronger resistance and weakening effects on the fluid when the tin wave in the turbulent flow state is encountered, and finally the tin wave overflowing out of the nozzle 100 is in a stable laminar flow state, so that the nozzle 100 can automatically and effectively improve the problem of unstable tin wave. Therefore, the nozzle 100 provided by the invention can effectively inhibit tin wave turbulence caused by equipment abnormality, and can reduce scrapping and abnormal shutdown in the production process of products.
In addition, because certain intermolecular forces exist between the liquid metals, the liquid metals can be mutually pulled with tin waves close to the cylinder core, and the increase of the entropy of the whole tin waves is further induced. The invention can prevent the flow of metal tin into the porous material from being blocked by the pore walls by utilizing the open pore 21 structure which is all around and connected with each other inside the porous structure 20, the porous structure 20 can effectively reduce the flow speed and pressure of the passing tin wave by generating obvious pressure drop on the inflow surface and the outflow surface of the fluid especially when encountering abrupt fluid, and the pressure drop can be gradually enhanced along with the reduction of the average pore diameter and the increase of the contact area, so that the entropy of the passing tin wave can be reduced, and the problem of instability of the tin wave can be also improved.
And the flow rate of the tin wave can be controlled by adjusting the pore size of the open pores 21 of the porous structure 20, so that the controllability and the welding yield of the welding equipment can be improved while the tin wave is stabilized, and the stability and the product competitiveness of the welding equipment can be improved while the cost is reduced.
In the practical application process, the material of the porous structure 20 may be the same as or different from the material of the nozzle body 10. Specifically, the porous structure 20 may be made of metal, ceramic, or the like.
In practical applications, the porous structure 20 may fill the nozzle channel 11 of the nozzle body 10, or may fill only a partial area of the nozzle channel 11.
Alternatively, referring to fig. 1 in combination, in an embodiment of the nozzle 100 of the present invention, the porous structure 20 includes a main hole structure and a communication hole structure, the main holes of the main hole structure and the communication holes of the communication hole structure communicate with each other, and the diameters of the main holes are different from those of the communication holes.
So configured, first, when the liquid metal tin wave overflows into the porous structure 20, a part of the liquid metal tin wave is blocked by the walls of the openings 21 (including the main holes and the communication holes) of the porous structure 20, and the tin wave impinging on the walls of the openings 21 can generate surge waves in different directions, so as to weaken the impact of the tin wave on the porous structure 20. The other part of liquid metal tin wave enters the porous structure 20 through the communicating holes of the communicating hole structure to carry out space transmission, and the tin wave can generate rotation and vortex in the communicating holes under the influence of the porous structure 20 so as to influence the transmission of the tin wave; in addition, in the process that the tin wave flows from the main hole of the main hole structure to the communication hole of the communication structure, the tin wave is subjected to the effects of obvious propagation resistance and obvious pressure drop due to the sudden change of the sectional area of the propagation path, and the process is repeatedly performed before the tin wave overflows out of the porous structure 20, so that the tin wave overflowed into the porous structure 20 and the tin wave overflowed out of the porous structure 20 have obvious difference in flow velocity and pressure, and the tin wave is easier to control. Meanwhile, after the tin wave passes through the porous structure 20 and the nozzle body 10, the tin wave becomes more uniform and stable.
Secondly, the walls of the openings 21 inside the porous structure 20 enable the material to have larger specific surface area, and the walls of the openings 21 can increase the transmission channels of tin waves, so that the tin waves can be in more sufficient contact with the porous structure 20. During the contact process, the characteristic of large specific surface area of the walls of the openings 21 of the porous structure 20 can generate larger adsorption characteristic, so that the flow rate of the tin wave overflowing through the porous structure is changed, and the operability of the tin wave can be increased.
In addition, as the pore size of the openings 21 of the porous structure 20 is reduced, capillary action becomes more remarkable, and the effect can also adjust the flow state of the system, thereby playing a role in stabilizing tin waves.
Alternatively, referring to fig. 1 in combination, in an embodiment of the nozzle 100 of the present invention, since the porous structure 20 is made of metal material more conveniently and at lower cost during the manufacturing process, a porous metal structure may be used as the porous structure 20.
Alternatively, in some embodiments, the porous metal structure may comprise at least one of copper, stainless steel, titanium alloy, aluminum, i.e., the porous structure 20 may be made of copper, stainless steel, titanium alloy, aluminum.
Optionally, referring to fig. 1 in combination, in an embodiment of the nozzle 100 of the present invention, the porous structure 20 is disposed between the liquid inlet and the liquid outlet of the nozzle channel 11.
So arranged, during the selective welding process, the tin liquid can smoothly enter the nozzle channel 11 from the liquid inlet of the nozzle channel 11, then the porous structure 20 has stronger resistance and weakening effects on the fluid when encountering the tin wave in a turbulent state, and finally the tin wave overflowed out of the nozzle 100 is in a stable laminar state; in this process, the molten tin can be guided to the porous structure 20 through the liquid inlet section between the liquid inlet of the nozzle channel 11 and the porous structure 20, and can be led out through the liquid outlet section between the porous structure 20 and the liquid outlet of the nozzle channel 11, so as to ensure that the molten tin can smoothly flow through the porous structure 20.
Optionally, referring to fig. 1 in combination, in an embodiment of the nozzle 100 of the present invention, defining the pore diameter of the openings 21 of the porous structure 20 as R, the condition is satisfied: r >300 μm.
By the arrangement, the aperture of the open pores 21 of the porous structure 20 can be a macroscopic aperture, so that turbulent wave can smoothly enter the open pores 21 of the porous structure 20 to collide and rub with the walls of the open pores 21, thereby realizing the function of stabilizing tin wave.
Preferably, the pore diameter R of the openings 21 of the porous structure 20 may be controlled between 300 μm and 1000 μm, for example, the pore diameter R of the openings 21 of the porous structure 20 may be 300 μm, 320 μm, 350 μm, 380 μm, 400 μm, 500 μm, 600 μm, 700 μm, 800 μm, 900 μm, 1000 μm, etc.
Referring to fig. 2 in combination, the present invention also proposes a method for preparing the nozzle 100 as described above, the method for preparing the nozzle 100 comprising the steps of:
s10, providing a nozzle body 10; it should be noted that the nozzle body 10 is a commonly used structural member, and will not be described in detail herein.
S20, filling a preform in a nozzle channel 11 of the nozzle body 10; it should be noted that, the preform is a pore-forming agent, and is used to assist in preparing the porous structure 20.
In the practical application process, the prefabricated body can comprise loose structural bodies such as salt, ceramic, dissimilar metal materials and the like. In some embodiments, the preform may include a primary preform and a secondary preform having different particle compositions, and the injection liquid may form a primary pore structure after penetrating in the primary preform, and the injection liquid may form a communication pore structure after penetrating between the primary preform and the secondary preform. The dissimilar metal is a metal different from the porous structure 20, and may be, for example, a metal such as iron, chromium, or manganese.
In practice, the preform may be filled into the nozzle channel 11 of the nozzle body 10, in particular by manual or feeding means.
S30, applying pressure to the preforms so that gaps are formed between at least part of the preforms; specifically, the flow rate of the tin wave can be controlled by controlling the amount of pressure applied to the preform to improve the operability of the soldering apparatus.
It should be noted that, the preform is a loose structure before being not pressurized, specifically includes a plurality of dispersed structural particles, and after applying pressure to the preform, the plurality of structural particles are compacted, so that a gap is formed between at least part of two adjacent structural particles.
S40, adding injection molding liquid into the nozzle channel 11 so as to fill the injection molding liquid into the gap; specifically, the injection molding liquid may be poured into the nozzle channel 11 by using a manual or pouring device, or may be sucked into the nozzle channel 11 by using a negative pressure manner, so long as the injection molding liquid can be smoothly added into the nozzle channel 11.
S50, removing the preform to form a porous structure 20 in the nozzle channel 11; specifically, the preform may be removed by vibration, water spraying, air spraying, or the like.
It will be appreciated that the porous structure 20 is prepared in the nozzle passage 11 of the nozzle body 10 by using a infiltration method to form the nozzle 100 having the porous structure 20, which is simple in process and low in cost, and can be industrially mass-produced. The turbulent wave collides with the hole wall in the porous structure 20 in the process of passing through the porous structure 20, and the reverse wave is swayed to counter the original wave while the flow speed of the turbulent wave is slowed down, and the process is repeated in the porous structure 20, so that the turbulent wave is continuously dissipated, disturbance of the turbulent flow to the metal tin liquid flow is weakened, the porous structure 20 can generate stronger resistance and weakening effect on the fluid when encountering the tin wave in the turbulent flow state, and finally the tin wave overflowed out of the nozzle 100 is in a stable laminar flow state, so that the nozzle 100 can automatically and effectively solve the problem of unstable tin wave.
In addition, by using the open pore 21 structure which is all around and connected with each other inside the porous structure 20, the flow of the metal tin into the porous material can be blocked by the pore walls, the porous structure 20 can generate obvious pressure drop on the inflow surface and the outflow surface of the fluid, particularly when the abrupt fluid is encountered, the flow rate and the pressure intensity of the passing tin wave can be effectively reduced, the pressure drop can be gradually enhanced along with the reduction of the average pore diameter and the increase of the contact area, the phenomenon can cause the entropy of the passing tin wave to be reduced, and the problem of instability of the tin wave can be improved.
And the flow rate of the tin wave can be controlled by adjusting the pore size and the pressure parameter of the open pores 21 of the porous structure 20, so that the controllability and the welding yield of the welding equipment can be improved while the tin wave is stabilized, and the stability and the product competitiveness of the welding equipment can be improved while the cost is reduced.
In one embodiment of the method of making the nozzle 100 of the present invention, the preform comprises a salt; thus, not only is the material cost low, but also salt is adopted as the preform to be more easily dissolved and removed, so that the influence on the forming of the porous structure 20 caused by insufficient preform removal is avoided.
In one embodiment of the method of making the nozzle 100 of the present invention, the injection molding liquid is a molten metal; in this way, the porous structure 20 is easier and less costly to produce.
In one embodiment of the method of making the nozzle 100 of the present invention, the step of "adding injection molding liquid into the nozzle channel 11" includes: the injection liquid is sucked into the nozzle passage 11 by negative pressure.
So set up, through adopting the mode of negative pressure to inhale injection molding liquid in the nozzle passageway 11, can make the clearance between the prefabrication body be full of better to injection molding liquid under the negative pressure effect.
In one embodiment of the method of making the nozzle 100 of the present invention, the step of "removing the preform" further comprises, prior to: and cooling and solidifying the injection liquid for a preset time.
By means of the arrangement, the injection molding liquid can be cooled, solidified and molded through cooling and solidifying the injection molding liquid for a preset time.
Specifically, the preset time may be 30s, 40s, 50s, 60s, or the like.
In one embodiment of the method of making the nozzle 100 of the present invention, the step of "removing the preform" includes: water is added to the nozzle channel 11 to flush and/or melt the preform.
So arranged, by directly adding a proper amount of water into the nozzle channel 11, the preform can be washed away and/or melted to remove the preform, and the process is simpler and the cost is lower.
The invention also provides a welding device, which comprises the nozzle 100 as described above, and the specific structure of the nozzle 100 refers to the above embodiment, and since the welding device adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (11)
1. A nozzle, comprising:
the nozzle comprises a nozzle body, wherein a nozzle channel is formed in the nozzle body;
a porous structure disposed within the nozzle channel; the porous structure comprises a main pore structure and a communication pore structure, wherein the main pore of the main pore structure is communicated with the communication pore of the communication pore structure, and the pore diameter of the main pore is different from that of the communication pore.
2. The nozzle of claim 1, wherein the porous structure is a porous metallic structure.
3. The nozzle of claim 2, wherein the porous metal structure comprises at least one of copper, stainless steel, titanium alloy, aluminum.
4. The nozzle of claim 1, wherein the porous structure is disposed between the liquid inlet and the liquid outlet of the nozzle channel.
5. The nozzle of claim 1, wherein defining the open pore diameter of the porous structure as R satisfies the condition: r >300 μm.
6. A method of producing the nozzle according to any one of claims 1 to 5, characterized in that the method of producing the nozzle comprises the steps of:
providing a nozzle body;
filling a preform in a nozzle channel of the nozzle body;
applying pressure to the preforms such that a gap is formed between at least some of the preforms;
adding injection molding liquid into the nozzle channel so that the injection molding liquid is filled into the gap;
the preform is removed to form a porous structure within the nozzle channel.
7. The method of manufacturing a nozzle according to claim 6, wherein the preform comprises a salt;
and/or the injection molding liquid is a metal liquid.
8. The method of preparing a nozzle as claimed in claim 6, wherein the step of adding injection molding liquid into the nozzle channel comprises:
and sucking the injection molding liquid into the nozzle channel through negative pressure.
9. The method of manufacturing a nozzle according to claim 6, further comprising, prior to the step of removing the preform:
and cooling and solidifying the injection liquid for a preset time.
10. The method of manufacturing a nozzle according to claim 6, wherein the step of removing the preform comprises:
water is added to the nozzle channel to flush and/or dissolve the preform.
11. A welding apparatus comprising a nozzle as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410044310.7A CN117680786A (en) | 2024-01-11 | 2024-01-11 | Nozzle, preparation method thereof and welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410044310.7A CN117680786A (en) | 2024-01-11 | 2024-01-11 | Nozzle, preparation method thereof and welding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117680786A true CN117680786A (en) | 2024-03-12 |
Family
ID=90139175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410044310.7A Pending CN117680786A (en) | 2024-01-11 | 2024-01-11 | Nozzle, preparation method thereof and welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117680786A (en) |
-
2024
- 2024-01-11 CN CN202410044310.7A patent/CN117680786A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4505530B2 (en) | Equipment for continuous casting of steel | |
| EP1996353B1 (en) | Distributor device for use in metal casting | |
| JP2002522227A (en) | Continuous casting method and apparatus therefor | |
| JP2018538148A (en) | Method and apparatus for planar conformal temperature control of a temperature control surface of a shell-shaped mold in a state where a medium communicates with each other in a polyhedral space | |
| JP2009066618A (en) | Continuous casting method of steel | |
| CN117680786A (en) | Nozzle, preparation method thereof and welding equipment | |
| JP6514199B2 (en) | Nozzle and casting equipment | |
| KR101063466B1 (en) | Stopper and Stopper Assembly | |
| JPH08294757A (en) | Pouring device for continuous casting | |
| Ho et al. | The analysis of molten steel flow in billet continuous casting mold | |
| KR20020013862A (en) | Production method for continuous casting cast billet | |
| JP2011143449A (en) | Method for removing inclusion in tundish for continuous casting | |
| JP3566904B2 (en) | Steel continuous casting method | |
| JP5741314B2 (en) | Immersion nozzle and continuous casting method of steel using the same | |
| JP3460185B2 (en) | Immersion nozzle for casting | |
| JP2008279491A (en) | Immersion nozzle for continuous casting of molten metal, and continuous casting method using the same | |
| CN203292475U (en) | Four-hole type submersed nozzle used for FTSC sheet billet continuous casting crystallizer with high pulling speed | |
| CN103231048B (en) | High pulling rate FTSC crystallizer for continuous casting of thin slabs four cellular type submersed nozzles | |
| CN201603853U (en) | Quadripuntal submersed nozzle used for pouring conventional plate blank and preventing molten steel turbulence | |
| JP3174220B2 (en) | Immersion nozzle for continuous casting | |
| KR100825612B1 (en) | Nozzle of continuous casting machine | |
| KR101962230B1 (en) | A Submerged nozzle for continuous casting | |
| JPH0852544A (en) | Production of non-defective cast slab | |
| JPH08117939A (en) | Method for blowing air bubbles into molten steel | |
| KR101594599B1 (en) | Device for manufacturing metal powders |
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 |