Solder paste is a mixture of flux and powdered solder. The process of attaching electrical components to the contact pads is called reflow soldering. During this process, the controlled heat within SMT reflow soldering oven melts the solder, to connect the joints permanently. Special models are designed to meet high thermal requirements and fine mesh belts for miniature parts.
This method is the most commonly used one when it comes to attaching surface mount components to a circuit board. The biggest advantage of using this method is that the assembly costs are reduced, and the controlled heat doesn't cause damages to electrical components. Typical oven consists of several zones, or stages.
The preheat stage is necessary to activate the soldering paste. When it starts to evaporate, it starts to make the connections in the next heating zone. The third stage is the place when the joints are exposed to the highest temperature. This temperature has to be calculated to avoid damaging the most sensitive electrical components.
Cooling zone is important part of the process. In this stage, the board is gradually cooled, and the joints are solidified. A cooling rate depends on components sensitivity as well. Generally, the rate of four degrees of Celsius per second is the most commonly used. Cooling rates have a significant effect on solder joint grain structure.
There are different types of SMT soldering ovens, including medium to high volume models, the ones designed as bench top models, and also nitrogen based. Compared to standard devices designed for the same purpose, they provide lower energy consumption and take up less space. Compact and practical, they can find their usage in different processes.
With at least four independently controlled heating zones, medium to high volume machines are additionally equipped with numerous very useful things, including independent thermocouple inputs. Computer operated and calculated functions make these devices easy to operate and maintain. Smaller devices are often used for prototyping, for example.
On-board computer permits on-screen profiling, and the parameters are set automatically. Particular parameters can be saved to a memory, and reloaded when needed. When re-loaded, all parameters can be additionally adjusted, including upper and lower limits, specific zones temperature settings and conveyor speeds.
These devices provide advanced temperature profiling and thermal management functions. They are compact sized and consume reasonable amounts of electricity. This combination of energy saving and production preparedness is making them more than convenient for all types of industries. All systems also include the timed automatic start-up and shutdown, as well as different audible and visual alarms.
Of course, for more advanced manufacturing processes there are some models designed with more heating zones and even more sophisticated controls. Large, ten controlled heating zone SMT oven is designed to meet large manufacturers needs. Equipped with high precision conveyor mechanism and some other innovative solutions, these devices take up small space, but provide excellent results with low energy consumption.
Different types of SMT reflow soldering oven with pin over mesh conveyor system meet any production requirement. Pin conveyors permit inline and double-sided processing. All components are built of high quality stainless steel, to maintain dimensional tolerances at the high temperature lead-free processing. All systems are equipped with special battery backup.
This method is the most commonly used one when it comes to attaching surface mount components to a circuit board. The biggest advantage of using this method is that the assembly costs are reduced, and the controlled heat doesn't cause damages to electrical components. Typical oven consists of several zones, or stages.
The preheat stage is necessary to activate the soldering paste. When it starts to evaporate, it starts to make the connections in the next heating zone. The third stage is the place when the joints are exposed to the highest temperature. This temperature has to be calculated to avoid damaging the most sensitive electrical components.
Cooling zone is important part of the process. In this stage, the board is gradually cooled, and the joints are solidified. A cooling rate depends on components sensitivity as well. Generally, the rate of four degrees of Celsius per second is the most commonly used. Cooling rates have a significant effect on solder joint grain structure.
There are different types of SMT soldering ovens, including medium to high volume models, the ones designed as bench top models, and also nitrogen based. Compared to standard devices designed for the same purpose, they provide lower energy consumption and take up less space. Compact and practical, they can find their usage in different processes.
With at least four independently controlled heating zones, medium to high volume machines are additionally equipped with numerous very useful things, including independent thermocouple inputs. Computer operated and calculated functions make these devices easy to operate and maintain. Smaller devices are often used for prototyping, for example.
On-board computer permits on-screen profiling, and the parameters are set automatically. Particular parameters can be saved to a memory, and reloaded when needed. When re-loaded, all parameters can be additionally adjusted, including upper and lower limits, specific zones temperature settings and conveyor speeds.
These devices provide advanced temperature profiling and thermal management functions. They are compact sized and consume reasonable amounts of electricity. This combination of energy saving and production preparedness is making them more than convenient for all types of industries. All systems also include the timed automatic start-up and shutdown, as well as different audible and visual alarms.
Of course, for more advanced manufacturing processes there are some models designed with more heating zones and even more sophisticated controls. Large, ten controlled heating zone SMT oven is designed to meet large manufacturers needs. Equipped with high precision conveyor mechanism and some other innovative solutions, these devices take up small space, but provide excellent results with low energy consumption.
Different types of SMT reflow soldering oven with pin over mesh conveyor system meet any production requirement. Pin conveyors permit inline and double-sided processing. All components are built of high quality stainless steel, to maintain dimensional tolerances at the high temperature lead-free processing. All systems are equipped with special battery backup.
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