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Shenzhen VTA Electronics Equipment CO.,LTD.

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Contact Number：400-0755-098

Process Plan

LED chip process solution

Author： adminPublication Time：2018-12-06Reading volume：1535【SmallMediumLarge】

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Lead-free solder paste product features
1. Adapt to long-term printing (more than 6 hours).
2. High-intensity antioxidant capacity.
3. It has good viscosity and thixotropy, and it has extremely long viscosity time and is not easy to collapse.
4. Has a very high insulation resistance, no need to clean.
5. It is not easy to produce tiny solder balls after soldering.
6. V series no-clean lead-free solder paste is based on IPC and JIS and other international standards to meet the future environmental protection requirements to develop a similar lead-based solder paste, using a new rosin resin and composite anti-oxidation technology, using a low oxidation degree spherical Solder alloy powder and a paste-like environmentally friendly flux with excellent chemical stability.
7. Suitable for various precision welding of electronic assembly process SMT production. Alloy series no-clean lead-free solder paste. 

 

 

Steel mesh

File PCB film and other professional data processing, high precision error. Imported steel sheet production, reliable quality.
1. Standard size: 37cm*47cm
2. Non-standard size: 30cm*40cm/42cm*52cm/ 55cm*65cm
3. Steel sheet thickness (optional): 0.1/0.12/0.15/0.18/2.0
4. Production method: etching / etching / laser

 

 

Ordinary printing station
In the manual press, the solder paste (sMD) is printed on the pad of the PCB (in the middle of the pad) for the next process. The manual printing machine is manually performing the work of placing the board, positioning, printing, taking the board and cleaning the stencil.

1. Positioning method: edge positioning or hole positioning
2. Adjustment method: manual fine adjustment
3. Adjust the direction: front, back, left and right, up and down.

 

 Artificial patch production line
The artificial patch production line is mainly a manually simulated patch nozzle. The air pressure difference (reverse vacuum) generated by the manual patch pen itself is used to directly suck the patch component from the tape, and then the component is manually placed. In the corresponding PADS position, the artificial patch force is less than the sticking force of the solder paste (adhesive glue) through the adjusted air pressure suction, and the components are automatically placed on the corresponding PADS.

 

 

V-MC835 lead-free reflow soldering

Unique advanced longevity heating system
1. The heating system adopts high-efficiency and energy-saving Swedish 110 volt nickel-plated heating tube with a peak wavelength of 4 UM, combined with a curved reflector, high thermal efficiency, fast temperature rise, and a special forced hot air circulation structure system to make the PCB and components heat evenly. Completely eliminate the "shadow effect."
2. Adopting Swiss CARLO high-current solid-state relay without contact output, safe and reliable, combined with the unique fuzzy control function of the thermostat, it constantly monitors the changes of external temperature and heat value, and controls the heating device with minimum pulse. Respond to ensure that the temperature control accuracy is ±1 °C, the temperature distribution error within the machine is within ±2 °C, and the temperature distribution in the longitudinal direction conforms to the IPC standard.
3. Temperature control adopts imported precision controller with fuzzy control and PID intelligent operation, through PID intelligent operation, automatic control of heat generation, fuzzy control function to increase overshoot and suppression function and quickly respond to external heat change function, fastest speed response Changes in external heat and internal control ensure a more balanced temperature.
4. The heat pipe module is designed for easy maintenance and disassembly.
5. Adopting Taiwan Mitsukoshi high-temperature high-speed motor, the wind is stable, the vibration is small, and the noise is small.
6. The upper furnace body can be opened as a whole to facilitate the cleaning of the furnace.
7. With temperature tolerance, fault diagnosis, sound and light alarm
8. Powerful, rapid heating, from room temperature to a constant temperature of about 15 minutes.
9. Special SSR radiator, greatly improving heat dissipation efficiency and effectively extending its service life
10. It adopts high temperature protection system, the furnace is made of special materials, suitable for lead-free soldering, and the soldering area is equipped with rosin flux recovery system to protect the environment.

Reliable and stable transmission system

1. Transmission system adopts Taiwan STK stepless variable speed motor, electric adjustable line speed stepless speed governor, with 1:150 STK turbine reducer, running smoothly, speed 200-1800mm/min stepless adjustable, and accurate The digital line speed indicator.
2. It adopts independent roller structure and supporter support, combined with the matching stainless steel mesh belt, it runs smoothly and the speed is accurate to ±20mm/min;
3. Special stainless steel mesh belt, durable and wearable. It is not easy to change for a long time.

   SMT connection checker
Configuration:
1. Taiwan STK speed motor control;
2. The connection platform is 1000mm long;
3. Green flat belt transmission;
4. Special aluminum profile rails;
5. Front and rear workbench with special aluminum profile protection;
6. Gear and rack widening structure;
7. Double imported photoelectric switch; equipped with signal communication interface (with one station pause check function.)
8. Relay control;
9. Surface treatment: electrostatic spray computer gray;
10.PCB width 50-300mm;
11. Left to right;
12. The front rail is fixed;
13. With fluorescent lamps, process instructions.
 

 Hand cable features
The artificial patch production line is mainly a manually simulated patch nozzle. The air pressure difference (reverse vacuum) generated by the manual patch pen itself is used to directly suck the patch component from the tape, and then the component is manually placed. At the corresponding PADS position, the artificial patch force is less than the stick strength of the solder paste (adhesive glue) through the adjusted air pressure suction, and the components are automatically placed on the corresponding PADS.
 

 Board access station
Configuration:
1. Taiwan STK speed motor control;
2. The docking station is 1000mm long;
3.35B imported high quality nylon chain transmission;
4. Special aluminum profile rails;
5. Special gear and trapezoidal screw synchronous widening structure;
9. Surface treatment: electrostatic spray computer white;
10. PCB width 50-300mm;
11. The front rails are fixed from left to right.
 

 V-300M lead-free wave soldering
1. The body's linear design, using spray-jet technology, beautiful and durable, durable
2. Three sections of independent 1.8 m preheating zone, full hot air preheating, with spotlight compensation device, so that the PCB obtains good welding effect
3. Patented die-cast titanium alloy chain claw, non-stick tin, never deformed, long life
4. Full observation window for easy operation and maintenance
5. Tin furnace lifting and entry and exit, automatic adjustment and manual adjustment. Backrest design prevents accidental damage to the machine
6. Equipped with cooling module, temperature compensation module, suitable for lead-free soldering and various process requirements
7. The company's newly invented ultra-stable, ultra-high filter source generator greatly reduces the occurrence of tin-flow oscillation and turbulence inside the flow channel. The tin wave is stable, the oxidation amount is greatly reduced, and the maintenance is simple.
8. The transmission mechanism adopts precision modular design, accurate transmission, long service life and easy maintenance.
9. The rosin spray device can be pulled out and can be disassembled for easy cleaning and maintenance.
10 isolated spray device, flux fumes are discharged from the dedicated air duct
11. Powerful parameter library function, various PCB process parameters can be called as needed
12. Adopt professional industrial computer control system to ensure system reliability and stability
13. It can automatically switch on and off according to the date, time and temperature control parameters set by the user.
14. System fault self-diagnosis, the cause of the fault is automatically displayed, and the troubleshooting method can be queried at any time.
15. The heating temperature adopts PID closed-loop control, and the temperature control is stable and reliable.
16. Closed-loop automatic tracking spray system, automatic adjustment of spray width and spray time, and advance and extended spray time as needed
17. Automatically wave the board to minimize the amount of tin oxidation
18. Transportation system uses clutch force limit + current limiter double protection
19. Short circuit and overcurrent protection system
20. Closed loop control of the transportation system. Stepless speed regulation, precise control of PCB preheating and welding time.
21. Industrial computer control system double wave soldering device, in addition to consistent machine automation performance, streamlined body design, simple and convenient computer window system, upgrade automation production and management records to a higher level

 

 

Exit board

1. Taiwan STK with tooth box with speed control dedicated control motor, running smoothly and not shaking.
2. 40*40 special aluminum profile with special connection angle adjuster, just adjust the connection angle by turning the adjustment handle.
3. Imported 2MM thick anti-static conveyor belt, durable wear.
4. Special lifting sleeve structure, the height of the connection can be adjusted as long as the lifting handle is turned.
5. Height adjustment: Please loosen the inner hexagon with the special wrench provided, then lift the upper part of the docking station, and then tighten the screw.
6. Speed adjustment: Please use the knob on the governor, low speed on the left and high speed on the right.
7. Level adjustment: Please use the foot cup of the machine foot to level.
8. Connection angle adjustment: Please loosen the two support rod screws first, then loosen the middle connection handle, adjust to an appropriate angle, and then lock the parts.

 

 Repair wire

 

2018-10-24 166Reading volum