CN104625282A - Satellite micro-rectangular electric coupler laser welding device and method - Google Patents
Satellite micro-rectangular electric coupler laser welding device and method Download PDFInfo
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- CN104625282A CN104625282A CN201410737146.4A CN201410737146A CN104625282A CN 104625282 A CN104625282 A CN 104625282A CN 201410737146 A CN201410737146 A CN 201410737146A CN 104625282 A CN104625282 A CN 104625282A
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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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/005—Soldering by means of radiant energy
- B23K1/0056—Soldering by means of radiant energy soldering by means of beams, e.g. lasers, E.B.
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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
- 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
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- Optics & Photonics (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The invention discloses a satellite micro-rectangular electric coupler laser welding device and method. A laser welding system comprises a semi-conductor laser welding device. The semi-conductor laser welding device comprises a semi-conductor laser, a three-axis movement platform, a dispenser, an air compressor and an operation control box, wherein the semi-conductor laser, the dispenser, the air compressor and the operation control box are integrally arranged on the three-axis movement platform. According to the satellite micro-rectangular electric coupler laser welding device and method, electrical insulation is conducted through the mode that socket solder cups and wire core wire portions are totally encapsulated, welding quality is further improved, and the electrical insulation performance of welding points is guaranteed; reliable welding of semi-automatic astronavigation micro-rectangular connector cable assemblies can be achieved, and the quality meets the use requirement.
Description
Technical field
The present invention relates to laser soldering device and technology, especially in automanual situation, safe and reliable semi-automatic welding operations is carried out to the micro-rectangular connector CA cable assembly of aerospace, is specifically related to a kind of satellite micro-rectangular electric connector laser soldering device and method for laser welding thereof.
Background technology
Satellite is when carrying out master-plan, and loss of weight has become the key technology of design of satellites, and loss of weight index also becomes the restriction index of Subsystem Design.Satellite uses CA cable assembly as signal, data, power delivery passage, and used electric connector must be applicable to microminiaturized demand, and the Small Distance that microminiaturized electric connector exists, bring the difficulty of manual assembly.
Due to the irreplaceability of CA cable assembly, how adapting to model loss of weight and microminiaturized demand, is the subject matter of current CA cable assembly assembling aspect.At many satellites, all propose very clear and definite loss of weight designing requirement.
At present, on comparatively polytypic, micro-rectangular electric connector of the MM series (pin-pitch 1.27mm) that small lot has selected AirBorn company to produce, take the import of connector band line, then the scheme of state's internal wiring, and the import of welding connector, then the two schemes of domestic welding lead solves model application demand.After being configured with laser welding system, casting glue defoaming device, preferably resolve the weld task demand of a small amount of MM connector.
The micro-rectangular electric connector of the MM of 1.27mm is only had for weldering cup spacing, owing to only having an appointment 0.3mm in the gap between its weldering cup, the requirement of welding quality is very high, once occur drawing point or burr, very likely between follow-up appearance weldering cup, electrical insulation properties declines, and even occurs shallow logical phenomenon.
For this problem, generally take manual mode at present to weld, cup gap is welded for 0.3mm, manual welding difficulty is large, weld strength far away higher than common connector, therefore operating personnel's more fatiguability, thus remote-effects product quality, can be realized the automation in welding process by laser weld mode, personnel's degree of fatigue is greatly improved, and ensures product quality.On the other hand, for gap between so little weldering cup, the technology mode of existing heat-shrinkable T bush pyrocondensation solder joint cannot be adopted to carry out electric insulation.
Summary of the invention
In order to solve the reliable welding of aerospace with micro-rectangular connector CA cable assembly, the invention provides a kind of satellite micro-rectangular electric connector laser welding system and method for laser welding thereof.This invention takes and electric insulation is carried out to the mode of all airtight embeddings of socket weldering cup and wire heart yearn position, improve welding quality further, ensure that solder joint volume electrical insulation properties.
The object of the invention is to be achieved through the following technical solutions:
The present invention relates to the micro-rectangular electric connector laser welding system of a kind of satellite, described laser welding system comprises semiconductor laser welder, described semiconductor laser welder comprises semiconductor laser, triaxial movement platform, point gum machine, air compressor and operation control box, described semiconductor laser, point gum machine, air compressor is integrated on triaxial movement platform with operation control box, , described semiconductor laser is electrically connected with triaxial movement platform, described point gum machine is electrically connected with triaxial movement platform, described operation control box is electrically connected with triaxial movement platform, the intake interface of the outtake tube joint access point gum machine of described air compressor, the USB connecting line of the CCD camera lens on the laser focusing head of described semiconductor laser inserts computer USB interface.Its Fundamentals of Welding are using semiconductor laser as heating source, radiation heating weldering cup, conducted heat to substrate by soldering paste (or prefabricated solder sheet), when temperature reaches brazing temperature, solder paste melts, weldering cup, wire soak, form solder joint, automatically carry out connector contraposition by triaxial movement platform, point gum machine and air compressor carry out weldering cup and ward off tin simultaneously, and whole system is undertaken unifying to control by operation control box.
Preferably, triaxial movement platform pin PORT 1 is connected with semiconductor laser 04-P port by 4 pin black connecting lines; Triaxial movement platform pin PORT 2 is connected with point gum machine 02-P port by 2 pin black connecting lines; Triaxial movement platform pin PORT 5 is connected with semiconductor laser DB-25 port by DB-25 connecting line; Triaxial movement platform pin PORT 6 is connected with operation control box DB-37 port by DB-37 connecting line; The intake interface of the outtake tube joint access point gum machine of air compressor; The USB connecting line of the CCD camera lens on the laser focusing head of semiconductor laser inserts computer USB interface.
Preferably, described triaxial movement platform is provided with the stepper motor that can control X-axis, Y-axis, Z axis three directions, three axles respectively carry out single axial movement by a stepper motor and control, stepper motor connection wire rod, screw mandrel sets up the first platform or the second platform, wherein the first platform can carry out X-axis and Z-axis linkage, the second platform and can carry out Y-axis and move, and the first platform is integrated with needle head of adhesive dispenser, some glue monitoring camera, laser focusing lens, laser monitor camera, totally four equipment; Second platform is integrated with fine setting optical table, carry out connector and fix and wire clamping, by knob, connector is carried out to the fine setting in X, Y, Z tri-directions, the stepper motor of whole three-axis platform carries out Bit andits control by the grating scale being preset in axle two ends.
Preferably, described triaxial movement platform is provided with the grating scale that can control X-axis, Y-axis, Z axis three direction motions.
Preferably, described triaxial movement platform is provided with the fine setting optical table in adjustable X-axis, Y-axis, Z axis three directions.
Preferably, when described system wards off tin and bonding wire by semiconductor laser to connector, different power and time parameter are selected, and are specially: ward off tin and divide 6 sections of settings, short weldering cup: 8A, 0.3s, 10A, 0.4s, 12A, 0.5s, 16A, 0.7s, 18A, 0.9s, 20A, 1.15s; Long weldering cup: 8A, 0.3s, 14A, 0.4s, 18A, 0.5s, 20A, 0.7s, 22A, 0.9s, 24A, 1.15s; Bonding wire divides 9 sections of settings, and length weldering cup parameter is identical: 10A, 0.3s, 12A, 0.4s, 16A, 0.5s, 22A, 1.0s, 25A, 0.5s, 27A, 0.7s, 20A, 0.5s, 10.5A, 0.3s, 8A, 0.2s.
Preferably, when described system wards off tin and bonding wire by point gum machine to connector, different air pressure and time parameter are selected, be specially: ward off tin and divide 5 some tin creams, each spot printing tin cream is set to 250kPa, 0.3s (optimum configurations is once put glue with tin cream and gone out tin 0.25mm and be as the criterion), wherein the 1st time, the 2nd time point is coated in same point, and 3 to the 5th is divided equally according to weldering cup length; Bonding wire divides 5 some tin creams, and each spot printing tin cream is set to 250kPa, 0.3s (optimum configurations is once put glue with tin cream and gone out tin 0.5mm and be as the criterion), and wherein the 1st time, the 2nd time point is coated in same point, and 3 to the 5th is divided equally according to weldering cup length.
Preferably, described system also comprises casting glue defoaming device.
Preferably, point gum machine selects 1mm bore stainless steel dispensing needle head.
Preferably, the selection of centering positions different when triaxial movement platform wards off tin and bonding wire for connector, is specially: when warding off tin and bonding wire, and dispensing needle head aims at weldering cup opening part root, and cup extension position is welded at the laser alignment weldering inclined top 1/3 of cup root.
The invention still further relates to the micro-rectangular electric connector method for laser welding of a kind of satellite, described welding method comprise wire bunchy, connector wards off tin, connector bonding wire, cable embedding; The power selected when described connector wards off tin and time parameter divide 6 sections to arrange, short weldering cup: 8A, 0.3s, 10A, 0.4s, 12A, 0.5s, 16A, 0.7s, 18A, 0.9s, 20A, 1.15s; Long weldering cup: 8A, 0.3s, 14A, 0.4s, 18A, 0.5s, 20A, 0.7s, 22A, 0.9s, 24A, 1.15s, the power selected during described connector bonding wire and time parameter divide 9 sections to arrange, and length weldering cup parameter is identical: 10A, 0.3s, 12A, 0.4s, 16A, 0.5s, 22A, 1.0s, 25A, 0.5s, 27A, 0.7s, 20A, 0.5s, 10.5A, 0.3s, 8A, 0.2s.
Preferably, the air pressure selected when described connector wards off tin and time parameter are: point 5 some tin creams, once put glue with tin cream to go out tin 0.25mm and be as the criterion, each spot printing tin cream is set to 250kPa, 0.3s, wherein the 1st time, the 2nd time point is coated in same point, and 3 to the 5th is divided equally according to weldering cup length; The air pressure selected during described connector bonding wire and time parameter are: point 5 some tin creams, once put glue with tin cream to go out tin 0.5mm and be as the criterion, each spot printing tin cream is set to 250kPa, 0.3s, wherein the 1st time, the 2nd time point is coated in same point, and 3 to the 5th is divided equally according to weldering cup length.
Preferably, described cable embedding is specially: mixed with curing agent evacuation and centrifugal degassing by the E-51 epoxy resin of mass ratio 4: 1, carries out all airtight embeddings to the satellite socket of micro-rectangular electric connector weldering cup and wire heart yearn position.
Compared with prior art, the present invention has following beneficial effect:
1, weld except fixing cord, all the other process implementation automations, the labour intensity of operating personnel is reduced greatly;
2, owing to have employed the high-precision pneumatic spot gluing equipment of 0.1ml, make scolding tin supply uniformity high, in conjunction with the stable output of semiconductor laser, ensure that welding quality uniformity, and solder joint meets aerospace standard;
3, the concentrated contactless heat supply of laser ensure that the welding quality of fine pitch, and has the expansibility to more Small Distance development.
4, take electric insulation is carried out to the mode of all airtight embeddings of socket weldering cup and wire heart yearn position, improve welding quality further, ensure that solder joint volume electrical insulation properties.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the fundamental diagram of semiconductor laser apparatus;
Fig. 2 is the total process chart of micro-rectangular connector CA cable assembly laser weld;
Fig. 3 is micro-rectangular connector laser welding process flow chart;
Fig. 4 is syringe needle location schematic diagram when warding off tin operation;
Fig. 5 is micro-rectangular connector CA cable assembly dosing technology flow chart;
Schematic diagram pasted by adhesive tape when Fig. 6 is potting operation;
Adhesive tape surrounding edge schematic diagram when Fig. 7 is potting operation;
Fig. 8 is that triaxial movement platform forms schematic diagram;
Wherein, 1 is adhesive tape and Copper Foil, and 2 is connector weldering cup, 3 is connector weldering cup end face, and 4 is the first platform, and 5 is the second platform, 6 is operation control box, and 7 is air compressor machine, and 8 is point gum machine, 9 is semiconductor laser, and 10 is triaxial movement platform, and 11 is tracheae, 12 is syringe needle, 13 is copper foil tape light face, and 14 is adhesive tape light face, and 15 glue face for adhesive tape.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Diode laser soldering is using semiconductor laser as heating source, radiation heating weldering cup, and by soldering paste (or prefabricated solder sheet) to substrate heat transfer, when temperature reaches brazing temperature, solder paste melts, weldering cup, wire soak, and form solder joint.
The interaction of laser-solder is very important for more effectively using laser thermal source to carry out soldering.During laser soldering, the quality of electronic devices and components sold joint not only depends on the laser energy that assembly absorbs, be also determined by assembly conduction heat, and these heats be used for heating solder make it fusing.Laser output power and laser braze welding time are two very important laser braze welding technological parameters, and the two effect is not interchangeable; On the contrary, only have selected the parameters combination of suitable laser output power and laser braze welding time, good, that reliability is high solder joint could be obtained.Laser braze welding process is that solder heat is made it liquefaction to fusion temperature, and will avoid the too much heating to other region.
Below in conjunction with embodiment, the present invention is more specifically described.
embodiment
The present embodiment relates to a kind of satellite micro-rectangular electric connector laser welding system and method for laser welding thereof.
The semiconductor laser welder of the present embodiment, comprise semiconductor laser 9, triaxial movement platform 10, point gum machine 8, air compressor and operation control box, wherein, described semiconductor laser, some soldering paste controller and air compressor, operate control box and be integrated on triaxial movement platform; This semiconductor laser apparatus fundamental diagram as shown in Figure 1.Triaxial movement platform 10, semiconductor laser 9, point gum machine 8 and operation control box 6 are as on trusted platform, and the PORT 1 of triaxial movement platform 10 is connected with the 04-P port of semiconductor laser 9 by 4 pin black connecting lines; The PORT 2 of triaxial movement platform 10 is connected with the 02-P port of point gum machine 8 by 2 pin black connecting lines; The PORT5 of triaxial movement platform 10 is connected with the DB-25 port of semiconductor laser 9 by DB-25 connecting line; The PORT 6 of triaxial movement platform 10 is connected with the DB-25 port of operation control box 6 by DB-37 connecting line; Intake interface after outtake tube (tracheae 11) the joint access point gum machine 8 of air compressor 7; The USB connecting line of the CCD camera lens on semiconductor laser 9 laser focusing head inserts computer USB interface.On triaxial movement platform 10, the stepper motor that can control X-axis, Y-axis, Z axis three directions is installed, the grating scale that can control X-axis, Y-axis, Z axis three direction motions has been installed, has there is also mounted the fine setting optical table in adjustable X-axis, Y-axis, Z axis three directions.Fig. 8 is that triaxial movement platform forms schematic diagram, three axles respectively carry out single axial movement by a stepper motor and control, stepper motor connection wire rod, screw mandrel sets up the first platform 4 or the second platform 5, wherein the first platform can carry out X-axis and Z-axis linkage, the second platform and can carry out Y-axis and move, first platform is integrated with needle head of adhesive dispenser, some glue monitoring camera, laser focusing lens, laser monitor camera, totally four equipment; Second platform is integrated with fine setting optical table, carry out connector and fix and wire clamping, by knob, connector is carried out to the fine setting in X, Y, Z tri-directions, the stepper motor of whole three-axis platform carries out Bit andits control by the grating scale being preset in axle two ends.
The satellite of the present embodiment with the total technological process of micro-rectangular electric connector laser weld as shown in Figure 2, comprise wire bunchy, connector ward off tin, connector welding, the master operation such as cable embedding, also comprise thereafter that electrical property detects, visual examination.Wherein, wire bunchy, connector ward off tin, connector welding operation is referred to as again connector laser welding process, and its process chart as shown in Figure 3, specifically comprises the steps:
A, wire bunchy: first carry out wire cable bunchy, be placed on positioning fixture by micro-rectangular connector to be welded, carries out warding off tin operation.
B, connector ward off tin: ward off process of tin method and parameter as follows:
1, temperature, humidity is recorded;
2, holding point glue time 0.3s, reconciles point gum machine pressure, with dispensing needle head gel quantity length for 0.25mm is as the criterion;
3, before putting glue, 0.5mm (increasing some glue laminated power) tin amount reserved by syringe needle;
4, syringe needle 12 height is from weldering cup 2 center edge about 0.5mm (see Fig. 4);
5, syringe needle 12 original position is in weldering cup 2 root (see Fig. 4);
6, tin cream point glue is carried out;
7, in the middle part of mobile laser spot position to weldering cup, open laser, select laser current as following table:
The short weldering cup of table 1-1 wards off tin laser current and set of time
| Segmentation | 1 | 2 | 3 | 4 | 5 | 6 |
| Laser current/A | 8 | 10 | 12 | 16 | 18 | 20 |
| Time/s | 0.3 | 0.4 | 0.5 | 0.7 | 0.9 | 1.15 |
Table 1-2 long weldering cup wards off tin laser current and set of time
| Segmentation | 1 | 2 | 3 | 4 | 5 | 6 |
| Laser current/A | 8 | 14 | 18 | 20 | 22 | 24 |
| Time/s | 0.3 | 0.4 | 0.5 | 0.7 | 0.9 | 1.15 |
8, after warding off tin, by wire shifting block to be welded, fix and be placed in weldering cup, carrying out wire-bonding operations.
C, connector welding: bonding wire craft method and parameter as follows:
1, temperature, humidity is recorded;
2, holding point glue time 0.3s, reconciles point gum machine pressure, with dispensing needle head gel quantity length for 0.5mm is as the criterion;
3, before putting glue, 0.25-0.5mm (rated pressure reduction) tin amount reserved by syringe needle;
4, needle height is from wire upper limb about 0.5mm;
5, syringe needle original position is at weldering cup root;
6, tin cream point glue is carried out;
8, in the middle part of mobile laser spot position to weldering cup, open laser, select laser current as following table:
Table 1-3 welds laser current and set of time
| Segmentation | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Laser current/A | 10 | 12 | 16 | 22 | 25 | 27 | 20 | 10.5 | 8 |
| Time/s | 0.3 | 0.4 | 0.5 | 1 | 0.5 | 0.7 | 0.5 | 0.3 | 0.2 |
For the bonding wire of connector same row's weldering cup, need once to complete wire and clamp, clamp wire in batches and rear dress lead location can be caused to raise, thus wire is reduced with the contact surface of weldering cup, affect welding effect.
After being soldered line, potting operation is carried out to connector.Micro-rectangular connector CA cable assembly dosing technology flow chart as shown in Figure 5, comprise prepare band line connector, adhesive tape is pasted with Copper Foil, adhesive tape surrounding edge, connector are fixed, E-51 proportioning, E-51 deaeration mix, E-51 pours into and the step such as solidification.
Wherein, adhesive tape and Copper Foil are pasted: adhesive tape is pasted as shown in Figure 6, and copper foil tape light face 13 is outside, and it is bonding with adhesive tape light face 14 that copper foil tape glues face, and adhesive tape glues face 15, and for welding with connector, cup is bonding realizes surrounding edge.
Adhesive tape surrounding edge: as shown in Figure 7, adhesive tape and Copper Foil 1 are welded cup 2 afterbody around affixing to connector by connector weldering cup end face 3, and to copper foil tape shaping.
E-51 proportioning: by E-51 epoxy resin and 593 curing agent in mass ratio 4:1 ratio carry out proportioning.
E-51 deaeration mixes: be placed in deaeration in centrifugal defoaming machine to the epoxy resin after proportioning and mix.
E-51 perfusion and solidification: the E-51 after deaeration is poured into pin tail adhesive tape and enclose in the space of building, and leave standstill solidification 24 hours, can realize all airtight embeddings of socket weldering cup and wire heart yearn position.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (9)
1. the micro-rectangular electric connector laser welding system of satellite, it is characterized in that, described laser welding system comprises semiconductor laser welder, described semiconductor laser welder comprises semiconductor laser, triaxial movement platform, point gum machine, air compressor and operation control box, described semiconductor laser, point gum machine, air compressor is integrated on triaxial movement platform with operation control box, described semiconductor laser is electrically connected with triaxial movement platform, described point gum machine is electrically connected with triaxial movement platform, described operation control box is electrically connected with triaxial movement platform, the intake interface of the outtake tube joint access point gum machine of described air compressor, the USB connecting line of the CCD camera lens on the laser focusing head of described semiconductor laser inserts computer USB interface.
2. the micro-rectangular electric connector laser welding system of satellite according to claim 1, is characterized in that, described triaxial movement platform is provided with the stepper motor that can control X-axis, Y-axis, Z axis three directions.
3. the micro-rectangular electric connector laser welding system of satellite according to claim 1, is characterized in that, described triaxial movement platform is provided with the grating scale that can control X-axis, Y-axis, Z axis three direction motions.
4. the micro-rectangular electric connector laser welding system of satellite according to claim 1, is characterized in that, described triaxial movement platform is provided with the fine setting optical table in adjustable X-axis, Y-axis, Z axis three directions.
5. the micro-rectangular electric connector laser welding system of satellite according to claim 1, is characterized in that, when described system wards off tin and bonding wire by semiconductor laser to connector, different power and time parameter are selected.
6. the micro-rectangular electric connector laser welding system of satellite according to claim 1, is characterized in that, when described system wards off tin and bonding wire by point gum machine to connector, different air pressure and time parameter are selected.
7. the method for laser welding adopting the satellite according to any one of claim 1 ~ 6 to be undertaken by micro-rectangular electric connector laser welding system, is characterized in that, described welding method comprises wire bunchy, connector wards off tin, connector bonding wire, cable embedding; The power selected when described connector wards off tin and time parameter divide 6 sections to arrange, short weldering cup: 8A, 0.3s, 10A, 0.4s, 12A, 0.5s, 16A, 0.7s, 18A, 0.9s, 20A, 1.15s; Long weldering cup: 8A, 0.3s, 14A, 0.4s, 18A, 0.5s, 20A, 0.7s, 22A, 0.9s, 24A, 1.15s, the power selected during described connector bonding wire and time parameter divide 9 sections to arrange, and length weldering cup parameter is identical: 10A, 0.3s, 12A, 0.4s, 16A, 0.5s, 22A, 1.0s, 25A, 0.5s, 27A, 0.7s, 20A, 0.5s, 10.5A, 0.3s, 8A, 0.2s.
8. the micro-rectangular electric connector method for laser welding of satellite according to claim 7, it is characterized in that, the air pressure selected when described connector wards off tin and time parameter are: point 5 some tin creams, once put glue with tin cream to go out tin 0.25mm and be as the criterion, each spot printing tin cream is set to 250kPa, 0.3s, wherein the 1st time, the 2nd time point is coated in same point, and 3 to the 5th is divided equally according to weldering cup length; The air pressure selected during described connector bonding wire and time parameter are: point 5 some tin creams, once put glue with tin cream to go out tin 0.5mm and be as the criterion, each spot printing tin cream is set to 250kPa, 0.3s, wherein the 1st time, the 2nd time point is coated in same point, and 3 to the 5th is divided equally according to weldering cup length.
9. the micro-rectangular electric connector method for laser welding of satellite according to claim 7, it is characterized in that, described cable embedding is specially: mixed with curing agent evacuation and centrifugal degassing by the E-51 epoxy resin of mass ratio 4: 1, carries out all airtight embeddings to the satellite socket of micro-rectangular electric connector weldering cup and wire heart yearn position.
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| CN113178762A (en) * | 2021-05-14 | 2021-07-27 | 深圳市京泉华科技股份有限公司 | Welding method and product |
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| US20140297033A1 (en) * | 2013-03-29 | 2014-10-02 | Fanuc America Corporation | Adaptive control of robotic laser braze/weld operation |
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