Circuit electronic PCB manufacturing equipment
A benchtop reflow welder is a small device used in electronics manufacturing, primarily for welding surface mount components (SMDS) to printed circuit boards (PCBS). It melts and re-cures the solder paste by controlling the temperature curve, thus achieving a reliable electrical connection.
Heating time: ≤15 minutes
Number of cooling zones: 1
Cooling method: constant current forced air cooling
Product Introduction
A benchtop reflow welder is a small device used in electronics manufacturing, primarily for welding surface mount components (SMDS) to printed circuit boards (PCBS). It melts and re-cures the solder paste by controlling the temperature curve, thus achieving a reliable electrical connection.
TECHNICAL PARAMETER:
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Heating temperature zone: |
6 |
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Heating zone length: |
1000mm |
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Heating element: |
vacuum ultra-long life nickel-chromium heater |
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Heating method: |
turbocharged full hot air temperature zone independent small cycle forced heating and rapid temperature increase, power saving and energy saving |
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Whole machine control mode: |
operation panel keys plus microcomputer intelligent instrument PID closed-loop control / touch screen control |
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Heating time: |
≤15 minutes |
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Number of cooling zones: |
1 |
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Cooling method: |
constant current forced air cooling |
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Temperature control accuracy: |
± 1 ℃ |
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PCB board lateral deviation: |
± 2 ℃ |
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PCB maximum width: |
the horizontal width of the mesh belt is 300mm |
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Component allowable height: |
35mm |
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Transportation direction: |
left → right |
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Transmission belt height: |
mesh belt 900 ± 20mm |
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Transmission method: |
stainless steel B-shaped mesh belt |
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Conveyor speed: |
150-220mm / min. |
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Abnormal alarm: |
ultra high temperature alarm |
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Power supply: |
AC220V / 50HZ |
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Start / normal power: |
6KW / 2KW |
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Weight: |
desktop 130Kg, vertical three-temperature zone, 180Kg |
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Dimensions: |
desktop L1650 × W613 × H660mm vertical machine L1650 × W613 × H1225mm |
Table reflow welding machine main components
1. Heating system: Benchtop reflow welders are usually equipped with multiple heating zones, including preheating zone, reflux zone and cooling zone. The preheating zone is used to gradually increase the PCB temperature to avoid thermal shock; In the reflux zone, the solder paste is heated to the melting point, so that it melts and forms a solder joint; The cooling zone solidifies the solder joint by natural or forced cooling.
2. Transmission system: The transmission system is usually composed of a high-temperature conveyor belt or guide rail, which is used to smoothly transfer the PCB through the various heating areas to ensure welding uniformity.
3. Control system: The control system is the core of the equipment, usually equipped with a touch screen or digital control panel, used to set and monitor the temperature curve, transmission speed and other parameters to ensure the accuracy and repeatability of the welding process.
4. Shell and thermal insulation design: The equipment shell is usually made of thermal insulation material, which can prevent heat loss and ensure the safety of the operator.
Desktop reflow welding machine application scenario
1. R&d and prototyping: In the R&D phase of electronic products, benchtop reflow welders can be used for small batch production or prototyping to help engineers quickly validate designs.
2. Small batch production: suitable for small and medium-sized enterprises or workshops for small-scale production to meet the needs of customization or low output.
3. Repair and rework: At the repair site, the benchtop reflow welder can be used to repair or replace damaged components on the PCB, improving repair efficiency.
4. Education and training: In the field of electronic engineering education, benchtop reflow welders can be used for teaching and training to help students master SMT welding technology.
Table reflow welding machine selection points
1. Temperature range and accuracy: Ensure that the highest temperature of the equipment can meet the requirements of the welding paste, and have high precision temperature control ability to ensure the welding quality.
2. Number of heating zones: The more the number of heating zones, the more accurate the temperature control, which can adapt to the needs of more complex welding processes.
3. Transmission speed and stability: transmission speed affects production efficiency, and the stability of the transmission system is directly related to the consistency and reliability of the welding.
4. Compatibility: Select equipment that can handle different sizes and types of PCBS to adapt to diverse production needs.
5. Ease of use and maintenance: The equipment should have a friendly operation interface and simple maintenance process to reduce the use cost and improve efficiency.
Introduction of equipment characteristics
The HW-R306 desktop reflow soldering machine launched by Beijing Huawei Guochuang Electronic Technology Co., Ltd. is a small reflow soldering machine, but the core structure of the core part is the same as that of the mainframe; its biggest advantage is that the liner uses The most advanced turbocharging technology, the biggest feature of this technology is to ensure that the suction air can be blown out from each hole of the rectifier plate to the greatest extent, and the air volume and wind speed between each hole are even; The system has many advantages, such as precise temperature control, power saving and energy saving, simple operation, and space saving. It is very suitable for customers who have high quality requirements and want high precision, but the space and batch are not large.
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Selection of small reflow soldering machine |
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Manufacturer |
Structure |
Heater |
Yunfeng System |
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HWGC |
Turbine forced supercharging structure, with even and strong wind, high thermal compensation efficiency, rapid temperature rise, energy saving. |
The vacuum tight heater has the characteristics of long life and rapid temperature rise. The general life of this structure heater will exceed ten years. |
Taiwan genuine H-level reflow soldering high temperature motor |
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Others |
The fan blades are added with ordinary heaters or infrared heating tubes, and even the fan blades and the fan motor are not available. Direct infrared tube baking, the temperature difference is simply uncontrollable, and there will usually be a 20-50 degree temperature difference. |
The life of ordinary heaters and infrared tube heaters is one to five years. After a long heating time, the heating wire directly contacts with oxygen. The oxidation becomes brittle and it is particularly afraid of vibration. The heating wire is easy to break. |
Range hood fan |
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A standard reflow soldering machine takes the solder paste composition Sn63Pb37 as an example. The melting point is 183 degrees,and the maximum soldering zone temperature is 230-240. The problem. Some manufacturers even need at least 280 degrees to just reach the fusion temperature; I hope you will pay special attention when choosing a reflow soldering machine! |
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Compared with other manufacturers' equipment on the market
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