CN116441714A - Method for welding gold-plated plate and tin - Google Patents
Method for welding gold-plated plate and tin Download PDFInfo
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- CN116441714A CN116441714A CN202310393967.XA CN202310393967A CN116441714A CN 116441714 A CN116441714 A CN 116441714A CN 202310393967 A CN202310393967 A CN 202310393967A CN 116441714 A CN116441714 A CN 116441714A
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- 238000003466 welding Methods 0.000 title claims abstract description 214
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 72
- 239000000463 material Substances 0.000 claims description 46
- 238000005476 soldering Methods 0.000 claims description 34
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 33
- 239000010931 gold Substances 0.000 claims description 33
- 229910052737 gold Inorganic materials 0.000 claims description 33
- 230000008569 process Effects 0.000 claims description 22
- 239000005028 tinplate Substances 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 6
- 238000004880 explosion Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 abstract description 16
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
Abstract
The invention relates to the technical field of welding, and discloses a method for welding a gold-plated plate and tin, which comprises the following steps: placing the tin sheet to be welded on the gold-plated plate to be welded and tightly attaching the tin sheet to be welded; determining welding peak power of the laser beam according to the attribute of the tin sheet to be welded and the gold-plated plate to be welded, wherein the laser beam corresponding to the welding peak power cannot penetrate through the gold-plated plate to be welded; and controlling the laser welding equipment to output a corresponding laser beam according to the welding peak power so as to weld the laser beam on the joint surface of the tin sheet to be welded and the gold-plated plate to be welded. According to the method, the welding peak power is determined according to the attribute of the tin sheet to be welded and the gold-plated plate to be welded, and then the laser welding equipment is controlled to output the corresponding laser beam according to the welding peak power to weld the two metal materials to be welded.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a welding method of a gold-plated plate and tin.
Background
Spacecraft are important to prevent extreme temperatures. Gold is an inert metal material that better retains its reflective properties. Gold therefore has a greater advantage than other reflective materials. Moreover, gold is a unquestionable space protection leader, since radiation is not only dangerous to humans-even burns the electronic equipment on board. Gold is widely used as an electrode lead of an electronic component or a surface coating of various matrixes in spacecraft electronic products, and tin is used as a welding spot formed by welding the gold coating, a gold-plated electrode of the component or the gold-plated lead with solder.
However, gold and tin are difficult to be soldered or the soldering quality is unstable due to the large difference in metal properties between gold and tin. The traditional method for welding the gold-plated plate and the tin realizes the welding of the two metal materials by ultrasonic waves, so that the procedures are more, the welding is unstable, the pulling force is small, and the connection performance is poor.
Therefore, there is a need for a method for soldering a gold-plated plate to tin, which effectively improves the soldering quality of the gold-plated plate to tin.
Disclosure of Invention
The invention mainly aims to provide a welding method of a gold-plated plate and tin, and aims to solve the technical problem that in the prior art, the welding quality of the gold-plated plate and tin sheet is unstable.
In order to achieve the above object, the present invention provides a method for soldering a gold-plated board to tin, the method comprising the steps of:
placing the tin sheet to be welded on the gold-plated plate to be welded and tightly attaching the tin sheet to be welded;
determining the welding peak power of a laser beam according to the attribute of the tin sheet to be welded and the gold-plated plate to be welded, wherein the laser beam corresponding to the welding peak power cannot penetrate through the gold-plated plate to be welded;
and controlling the laser welding equipment to output a corresponding laser beam according to the welding peak power so as to weld the laser beam on the joint surface of the tin sheet to be welded and the gold-plated plate to be welded.
Optionally, before the step of controlling the laser welding device to output the corresponding laser beam according to the welding peak power, the method further includes:
according to the material characteristics of the tin sheet to be welded and the gold-plated plate to be welded, adjusting welding waveforms to obtain target welding waveforms with welding power ramp-up wave bands;
and controlling the laser welding equipment to output corresponding laser beams according to the welding power slowly-rising wave band, and heating the tin sheet to be welded and the gold-plated plate to be welded.
Optionally, after the step of determining the welding peak power of the laser beam according to the properties of the tin plate to be welded and the gold-plated plate to be welded, the method further includes:
adjusting the welding waveform according to the material characteristics of the tin sheet to be welded and the gold-plated plate to be welded to obtain a target welding waveform with a welding power slow-down wave band;
correspondingly, after the step of controlling the laser welding equipment to output the corresponding laser beam according to the welding peak power, the method further comprises the following steps:
and controlling the laser welding equipment to output corresponding laser beams according to the welding power slow-down band, and cooling the tin sheet to be welded and the gold-plated plate to be welded.
Optionally, after the step of placing the tin sheet to be soldered on the gold-plated board to be soldered and closely attaching, the method further includes:
and pressing the tin sheet to be welded and the gold-plated plate to be welded through pressing equipment.
Optionally, before the step of controlling the laser welding apparatus to output the corresponding laser beam according to the welding peak power, the method includes:
determining the tin sheet to be welded and the to-be-welded point of the gold-plated plate to be welded;
performing focus debugging on the laser beam emitted by the laser welding equipment, wherein the debugging distance is less than 0.2mm each time until the focus is positioned on the to-be-welded point;
correspondingly, the step of controlling the laser welding equipment to output the corresponding laser beam according to the welding peak power comprises the following steps:
and controlling the laser welding equipment to output corresponding laser beams to the to-be-welded point according to the target welding waveform.
Optionally, the laser welding apparatus includes: the laser, the collimator, the galvanometer and the field lens;
and the laser beam emitted by the laser is output to the to-be-welded point through the collimator, the galvanometer and the field lens.
Optionally, the laser is a multimode QCW laser with a pulse width of millisecond, the wavelength of the output laser beam is 1070nm, and the distance between the field lens and the tin sheet to be welded is 200mm to 260mm.
Optionally, the controlling laser welding device outputs a corresponding laser beam according to the welding peak power, so that the laser beam is welded on the joint surface of the tin sheet to be welded and the gold-plated plate to be welded after the step of:
detecting a welding result of the welded to-be-welded point;
and when the to-be-welded point meets the welding process requirement, obtaining the target welding material.
Optionally, the welding process requirement is that the welding point is free of splashing, explosion point and crack, and the molten pool of the welding point is free of air holes, collapse and crack.
Optionally, after the step of obtaining the target welding material when the to-be-welded point meets the welding process requirement, the method further includes:
and detecting the tension of the target welding material, wherein the welding is completed when the tension detection meets the preset tension condition, and the preset tension condition is that the single-point drawing force of the target welding material is larger than 50N.
The tin sheet to be welded is placed on the gold-plated plate to be welded and is tightly attached; determining welding peak power of the laser beam according to the attribute of the tin sheet to be welded and the gold-plated plate to be welded, wherein the laser beam corresponding to the welding peak power cannot penetrate through the gold-plated plate to be welded; and controlling the laser welding equipment to output a corresponding laser beam according to the welding peak power so as to weld the laser beam on the joint surface of the tin sheet to be welded and the gold-plated plate to be welded. According to the invention, the welding peak power is determined according to the attribute of the tin sheet to be welded and the gold-plated plate to be welded, and then the laser welding equipment is controlled to output the corresponding laser beam according to the welding peak power, so that the laser beam is welded on the joint surface of the tin sheet to be welded and the gold-plated plate to be welded.
Drawings
FIG. 1 is a flow chart of a first embodiment of a method for soldering a gold-plated plate to tin according to the present invention;
FIG. 2 is a schematic diagram of a target soldering waveform of the soldering method of the present invention for gold-plated boards and tin;
FIG. 3 is a schematic view of a laser welding scenario of the method for welding a gold-plated plate and tin according to the present invention;
FIG. 4 is a flow chart of a second embodiment of a method for soldering a gold-plated plate to tin according to the present invention;
FIG. 5 is a flow chart of a third embodiment of a method for soldering a gold-plated plate to tin according to the present invention;
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
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
An embodiment of the invention provides a method for welding a gold-plated plate and tin, and referring to fig. 1, fig. 1 is a schematic flow chart of a first embodiment of the method for welding a gold-plated plate and tin.
In this embodiment, the method for soldering the gold-plated plate and tin includes the following steps:
step S10: placing the tin sheet to be welded on the gold-plated plate to be welded and tightly attaching the tin sheet to be welded;
it should be noted that, the execution body of the embodiment may be a computing service device having functions of controlling the laser welding device, data processing and program running, or an electronic device capable of implementing the above functions, for example, a personal computer, a notebook computer, etc. applied to the laser welding scene.
It is understood that the bonding surface of the tin plate to be soldered and the gold plate to be soldered needs to be pre-cleaned before the tin plate to be soldered is placed on the gold plate to be soldered. The pre-cleaning is carried out before the metal welding, so that impurities on the joint surface of the tin sheet to be welded and the gold-plated plate to be welded can be cleaned, and welding defects such as air holes, slag inclusion, unfused and the like are avoided in the subsequent welding.
It should be noted that, the tin sheet to be welded is placed on the gold-plated plate to be welded and is tightly attached, and the two metal materials can be clamped by the jig after the tin sheet to be welded is placed on the gold-plated plate to be welded.
In order to ensure that the surface of the material to be welded is smooth, reduce the gap between contact surfaces and prevent the gap between two layers of material pieces from being too large to generate virtual welding, the tin sheet to be welded and the gold-plated plate to be welded can be pressed through pressing equipment.
In specific implementation, the bonding surfaces of the tin sheet to be welded with the thickness of 0.1mm and the gold plate to be welded with the thickness of 2mm are pre-cleaned, impurities on the bonding surfaces of the tin sheet to be welded and the gold plate to be welded are removed, then the cleaned tin sheet to be welded is placed on the gold plate to be welded, and after two metal materials are clamped by a jig, the tin sheet to be welded and the gold plate to be welded are pressed by pressing equipment.
Step S20: determining welding peak power according to the attribute of the tin sheet to be welded and the gold-plated plate to be welded, wherein laser beams corresponding to the welding peak power cannot penetrate through the gold-plated plate to be welded;
it should be noted that the properties of the tin plate to be soldered and the gold plate to be soldered include the thickness and the melting point of the gold plate, and the soldering peak power is determined according to the thickness and the melting point of the tin plate to be soldered and the gold plate to be soldered. The laser beams corresponding to the determined welding peak power cannot penetrate through the to-be-welded gold-plated plate, so that the welding quality of welding spots is ensured.
Step S30: and controlling the laser welding equipment to output a corresponding laser beam according to the welding peak power so as to weld the laser beam on the joint surface of the tin sheet to be welded and the gold-plated plate to be welded.
It should be explained that, the welding peak power is the maximum welding power that can be welded but the laser beam corresponding to the welding power cannot penetrate the gold-plated plate to be welded when the tin sheet to be welded and the gold-plated plate to be welded are welded in the laser welding process.
In order to make the absorption of laser energy by the tin plate to be welded and the gold-plated plate to be welded more stable in the subsequent welding process, the welding waveform can be adjusted according to the material characteristics of the tin plate to be welded and the gold-plated plate to be welded, so as to obtain the target welding waveform with the welding power ramp-up wave band.
Further, in order to prevent formation of air holes and explosion points in the welding process of the tin sheet to be welded and the gold-plated plate to be welded, the welding waveform can be adjusted according to the material characteristics of the tin sheet to be welded and the gold-plated plate to be welded, and a target welding waveform with a welding power slow-down wave band is obtained.
For example, referring to fig. 2, fig. 2 is a schematic diagram of a target welding waveform of a welding method of a gold plate and tin according to the present invention, in which the horizontal axis represents time T of laser welding and the vertical axis represents power P of laser welding. The method comprises three stages, wherein the first stage, the slowly rising waveform enables the material to slowly rise in temperature, and prepares for the subsequent material to absorb laser energy better; the second stage, the stable welding stage, the low peak energy and the short pulse width make the laser not penetrate the tin layer, ensure the welding quality; and in the third stage, the waveform is slowly lowered, so that the molten pool is slowly cooled, and the formation of air holes and explosion points is prevented.
It should be understood that the large difference between the melting points of two different metal materials can cause that the high-melting-point material is still in a solid state when the low-melting-point material is melted, and the melted material easily permeates into the grain boundary of the overheating zone to cause loss of the low-melting-point material, burn and evaporate the alloy elements, so that the chemical composition of the welding spot is changed, and the mechanical property is difficult to control. The difference of linear expansion coefficients of two different metal materials can cause larger welding stress and welding deformation when a molten pool is crystallized, and the welding seam and a heat affected zone are easy to crack and even the welding seam metal and a base metal are peeled off due to different stress states born by two sides of the welding seam. The difference of the thermal conductivity and specific heat capacity of two different metal materials can lead to the deterioration of the crystallization condition of weld metal, coarse grains and influence the wettability of refractory metal.
Because the melting point, boiling point, specific heat capacity, thermal conductivity and linear expansion coefficient of the two metal materials of gold and tin are greatly different, the melting point, boiling point, specific heat capacity, thermal conductivity and linear expansion coefficient of the materials to be welded need to be comprehensively considered, and the welding quality of the two metal materials to be welded is ensured.
Further, the above material characteristics include melting point, boiling point, specific heat capacity, thermal conductivity, and linear expansion coefficient of the metal material to be welded.
The laser welding apparatus includes: the laser comprises a laser, a collimator, a vibrating mirror and a field lens, wherein laser beams emitted by the laser are output to a to-be-welded point through the collimator, the vibrating mirror and the field lens, and the duration from clicking light to finishing the welding of the laser is 2 milliseconds in the process of welding two metal materials.
For example, referring to fig. 3, fig. 3 is a schematic view of a laser welding scene of the welding method of the gold-plated plate and tin according to the present invention, where a tin plate to be welded and a gold-plated plate to be welded are stacked on a workbench, and a laser is powered by a power supply and outputs an emitted laser beam to a joint surface of the tin plate to be welded and the gold-plated plate to be welded through the collimator, the galvanometer and the field lens.
It should be explained that the distance between the field lens and the tin sheet to be welded is 200mm to 260mm, and specific values can be adjusted according to practical situations, which is not limited in this embodiment. The laser is a multimode QCW laser with a pulse width of millisecond level, the wavelength of the output laser beam is 1070nm, the purpose of the laser is that the beam quality is good, M 2 Less than 1.2, the beam divergence angle is small.
In the embodiment, the tin sheet to be welded is placed on the gold-plated plate to be welded and is tightly attached; determining the welding peak power of the laser beam according to the attribute of the tin sheet to be welded and the gold-plated plate to be welded, wherein the laser beam corresponding to the welding peak power cannot penetrate through the gold-plated plate to be welded; according to the material characteristics of the tin sheet to be welded and the gold-plated plate to be welded, adjusting welding waveforms to obtain target welding waveforms with welding power ramp-up wave bands; adjusting the welding waveform according to the material characteristics of the tin sheet to be welded and the gold-plated plate to be welded to obtain a target welding waveform with a welding power slow-down wave band; and controlling the laser welding equipment to output a corresponding laser beam according to the welding peak power so as to weld the laser beam on the joint surface of the tin sheet to be welded and the gold-plated plate to be welded. According to the invention, the welding peak power is determined according to the properties of the tin sheet to be welded and the gold-plated plate to be welded, the welding waveform is adjusted according to the material characteristics of the tin sheet to be welded and the gold-plated plate to be welded, and the laser welding equipment is controlled to output corresponding laser beams to weld two metal materials to be welded.
Referring to fig. 4, fig. 4 is a flow chart of a second embodiment of the method for soldering a gold-plated plate and tin according to the present invention.
Based on the first embodiment, in this embodiment, before step S30, the method further includes:
step S201: determining the tin sheet to be welded and the to-be-welded point of the gold-plated plate to be welded;
step S202: and carrying out focus debugging on the laser beam emitted by the laser welding equipment, wherein the debugging distance is less than 0.2mm each time until the focus is positioned on the to-be-welded point.
It is understood that the tin plate to be soldered and the gold plate to be soldered to the solder can be determined according to the shape and size of the solder material.
In the concrete implementation, a multimode QCW laser with 1070nm wavelength and millisecond pulse width is selected, before welding, a material to be welded is horizontally placed on a workbench under a field lens, the laser beam emitted by the laser is controlled to start focus debugging, the focus position can be slowly debugged by adjusting the height of a working face, in the debugging process, a laser range finder or a micrometer is used for height measurement, the debugging distance is less than 0.2mm each time, until the focus of a pulse laser beam emitted by the laser is positioned on the joint surface of a first nonmetallic part to be welded and a second metallic part to be welded, and then the focus is debugged to the position to be welded, so that the debugging is completed.
Accordingly, step S30 includes:
step S30': and controlling the laser welding equipment to output a corresponding laser beam to the to-be-welded point according to the target welding waveform, so that the laser beam welds the to-be-welded point on the joint surface of the to-be-welded tin sheet and the to-be-welded gold-plated plate.
In the welding process, under the action of a laser beam, a molten pool is formed on the joint surface of the two, the part of the tin sheet to be welded is downwards embedded into the gold-plated plate to be welded, and the part of the gold-plated plate to be welded is upwards embedded into the tin sheet to be welded, so that an effect similar to 'embedding' is generated, and two different metal materials are mixed, so that the tin sheet to be welded is tightly connected with the gold-plated plate to be welded.
In the embodiment, the tin sheet to be welded is placed on the gold-plated plate to be welded and is tightly attached; determining the welding peak power of the laser beam according to the attribute of the tin sheet to be welded and the gold-plated plate to be welded, wherein the laser beam corresponding to the welding peak power cannot penetrate through the gold-plated plate to be welded; determining the tin sheet to be welded and the to-be-welded point of the gold-plated plate to be welded; performing focus debugging on the laser beam emitted by the laser welding equipment, wherein the debugging distance is less than 0.2mm each time until the focus is positioned on the to-be-welded point; according to the material characteristics of the tin sheet to be welded and the gold-plated plate to be welded, adjusting welding waveforms to obtain target welding waveforms with welding power ramp-up wave bands; adjusting the welding waveform according to the material characteristics of the tin sheet to be welded and the gold-plated plate to be welded to obtain a target welding waveform with a welding power slow-down wave band; and controlling the laser welding equipment to output a corresponding laser beam according to the welding peak power so as to weld the laser beam on the to-be-welded point of the joint surface of the to-be-welded tin sheet and the to-be-welded gold-plated plate. According to the invention, the welding peak power is determined according to the properties of the tin sheet to be welded and the gold plate to be welded, the welding waveform is adjusted according to the material properties of the tin sheet to be welded and the gold plate to be welded, and the laser welding equipment is controlled to output the corresponding laser beams to weld the joint surfaces of the two metal materials to be welded on the joint surfaces to be welded.
Referring to fig. 5, fig. 5 is a flow chart of a third embodiment of a method for soldering a gold-plated plate and tin according to the present invention.
Based on the above embodiment, in this embodiment, after step S30, the method further includes:
step S301: detecting a welding result of the welded to-be-welded point;
it can be understood that the welding result of the welding point can be detected by means of appearance inspection, hand touch inspection or infrared sensing detection, and whether the welding point to be welded meets the welding process requirement is judged.
It should be understood that the welding process needs to be that the welding point is free of splash, explosion point and crack, and the molten pool of the welding point is free of air holes, collapse and crack.
Step S302: and when the to-be-welded point meets the welding process requirement, obtaining the target welding material.
It can be understood that when the to-be-welded point has no splash, no explosion point and no crack, the to-be-welded point meets the welding process requirement, and the target welding material is obtained; and when the welding point does not meet the welding process requirement, the welding effect is not up to standard.
In a specific implementation, in order to test whether the connection of the target welding material is stable, after step S302, the method further includes: and detecting the tension of the target welding material, wherein the welding is completed when the tension detection meets the preset tension condition, and the preset tension condition is that the single-point drawing force of the target welding material is larger than 50N. If the single-point drawing force of the target welding material is greater than 50N, the welding is finished; and if the single-point drawing force of the target welding material is less than or equal to 50N, the welding quality is not up to standard.
In the embodiment, the tin sheet to be welded is placed on the gold-plated plate to be welded and is tightly attached; determining the welding peak power of the laser beam according to the attribute of the tin sheet to be welded and the gold-plated plate to be welded, wherein the laser beam corresponding to the welding peak power cannot penetrate through the gold-plated plate to be welded; determining the tin sheet to be welded and the to-be-welded point of the gold-plated plate to be welded; performing focus debugging on the laser beam emitted by the laser welding equipment, wherein the debugging distance is less than 0.2mm each time until the focus is positioned on the to-be-welded point; according to the material characteristics of the tin sheet to be welded and the gold-plated plate to be welded, adjusting welding waveforms to obtain target welding waveforms with welding power ramp-up wave bands; adjusting the welding waveform according to the material characteristics of the tin sheet to be welded and the gold-plated plate to be welded to obtain a target welding waveform with a welding power slow-down wave band; controlling the laser welding equipment to output corresponding laser beams; detecting a welding result of the welded to-be-welded point; when the to-be-welded point meets the welding process requirement, obtaining a target welding material; and detecting the tension of the target welding material, and indicating that the welding is completed when the tension detection meets the preset tension condition. According to the embodiment, the laser welding equipment is controlled to output the corresponding laser beams to weld the to-be-welded points of the two metal materials to be welded, the welded materials are detected and judged to meet the welding process requirements or not according to the welding result, and the target welding materials are subjected to tension detection, so that the welding quality of the gold-plated plate and the tin sheet is guaranteed.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. read-only memory/random-access memory, magnetic disk, optical disk), comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (10)
1. A method of soldering a gold plated plate to tin, the method comprising the steps of:
placing the tin sheet to be welded on the gold-plated plate to be welded and tightly attaching the tin sheet to be welded;
determining the welding peak power of a laser beam according to the attribute of the tin sheet to be welded and the gold-plated plate to be welded, wherein the laser beam corresponding to the welding peak power cannot penetrate through the gold-plated plate to be welded;
and controlling the laser welding equipment to output a corresponding laser beam according to the welding peak power so as to weld the laser beam on the joint surface of the tin sheet to be welded and the gold-plated plate to be welded.
2. The method of soldering a gold plate to tin as recited in claim 1, wherein before the step of controlling the laser soldering apparatus to output the corresponding laser beam according to the soldering peak power, further comprising:
according to the material characteristics of the tin sheet to be welded and the gold-plated plate to be welded, adjusting welding waveforms to obtain target welding waveforms with welding power ramp-up wave bands;
and controlling the laser welding equipment to output corresponding laser beams according to the welding power slowly-rising wave band, and heating the tin sheet to be welded and the gold-plated plate to be welded.
3. The method for soldering a gold plate and tin according to claim 2, wherein after the step of determining the soldering peak power of the laser beam based on the properties of the tin plate to be soldered and the gold plate to be soldered, further comprising:
adjusting the welding waveform according to the material characteristics of the tin sheet to be welded and the gold-plated plate to be welded to obtain a target welding waveform with a welding power slow-down wave band;
correspondingly, after the step of controlling the laser welding equipment to output the corresponding laser beam according to the welding peak power, the method further comprises the following steps:
and controlling the laser welding equipment to output corresponding laser beams according to the welding power slow-down band, and cooling the tin sheet to be welded and the gold-plated plate to be welded.
4. The method for soldering a gold plate and tin as claimed in claim 1, wherein after said step of placing the tin plate to be soldered on the gold plate to be soldered and closely adhering, further comprising:
and pressing the tin sheet to be welded and the gold-plated plate to be welded through pressing equipment.
5. A method of soldering a gold plate to tin as claimed in claim 3, wherein prior to the step of controlling the laser soldering apparatus to output a corresponding laser beam in accordance with the soldering peak power, comprising:
determining the tin sheet to be welded and the to-be-welded point of the gold-plated plate to be welded;
performing focus debugging on the laser beam emitted by the laser welding equipment, wherein the debugging distance is less than 0.2mm each time until the focus is positioned on the to-be-welded point;
correspondingly, the step of controlling the laser welding equipment to output the corresponding laser beam according to the target welding waveform comprises the following steps:
and controlling the laser welding equipment to output corresponding laser beams to the to-be-welded point according to the target welding waveform.
6. The method for soldering a gold plate and tin as claimed in claim 5, wherein said laser soldering apparatus comprises: the laser, the collimator, the galvanometer and the field lens;
and the laser beam emitted by the laser is output to the to-be-welded point through the collimator, the galvanometer and the field lens.
7. The method for soldering a gold plate and tin according to claim 6, wherein the laser is a multimode QCW laser with a pulse width of millisecond level, the output laser beam has a wavelength of 1070nm, and the distance between the field lens and the tin plate to be soldered is 200mm to 260mm.
8. The method for soldering a gold plate and tin plate according to claim 5, wherein the controlling laser soldering apparatus outputs a corresponding laser beam according to the soldering peak power so that the laser beam is soldered on the bonding face of the tin plate to be soldered and the gold plate to be soldered after the step of:
detecting a welding result of the welded to-be-welded point;
and when the to-be-welded point meets the welding process requirement, obtaining the target welding material.
9. The method for soldering a gold-plated plate and tin according to claim 8, wherein the soldering process requirement is that the to-be-soldered point is free of splash, free of explosion point and free of crack, and the molten pool to-be-soldered point is free of air hole, free of collapse and free of crack.
10. The method for soldering a gold plate and tin plate according to claim 8, wherein after the step of obtaining a target soldering material when the to-be-soldered point satisfies a soldering process requirement, further comprising:
and detecting the tension of the target welding material, wherein the welding is completed when the tension detection meets the preset tension condition, and the preset tension condition is that the single-point drawing force of the target welding material is larger than 50N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310393967.XA CN116441714A (en) | 2023-04-06 | 2023-04-06 | Method for welding gold-plated plate and tin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310393967.XA CN116441714A (en) | 2023-04-06 | 2023-04-06 | Method for welding gold-plated plate and tin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116441714A true CN116441714A (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310393967.XA Pending CN116441714A (en) | 2023-04-06 | 2023-04-06 | Method for welding gold-plated plate and tin |
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| Country | Link |
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| CN (1) | CN116441714A (en) |
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2023
- 2023-04-06 CN CN202310393967.XA patent/CN116441714A/en active Pending
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