Kingford focus on the high-quality PCBA order demand of "Multiple varieties, medium and small batch, and short lead time".
Engineering Technology

Engineering Technology

Precision control skills and methods of PCB board milling
17Mar
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Precision control skills and methods of PCB board milling

The milling technology of NC circuit board milling machine includes the selection of cutting direction, compensation method, positioning method, frame structure, the next cutter point, which is an important aspect to ensure the milling precision.

Water based cleaning process
17Mar
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Water based cleaning process

The traditional way to clean printed circuit boards is to use organic solvents, but CFC-113 has been banned because of its damage to the atmospheric ozone layer.

Selective welding of printed circuit board
17Mar
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Selective welding of printed circuit board

In PCB proofing, temperature sensitive elements can limit the application of reflow soldering, whether in cartridge or SMD. Therefore, selective welding can be used after reflow welding in most applications.

What are the PCB routing rules and techniques?
17Mar
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What are the PCB routing rules and techniques?

In PCB design, wiring is an important step to complete the product design, it can be said that the previous preparation work is done for it. PCB routing includes single - sided routing, double - sided routing and multi - layer routing.

The importance of the first part detection in PCBA processing
17Mar
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The importance of the first part detection in PCBA processing

The purpose of thawing back temperature: can make the flux and tin powder evenly distributed, so as to give full play to the various characteristics of tin paste; The viscosity and activity of the solder paste after refrigeration are different from that o

SMT patch processing includes equipment and manufacturing processes
17Mar
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SMT patch processing includes equipment and manufacturing processes

SMT SMT processing includes the following equipment: 1, board machine: 2, solder paste printing machine, 3, SPI(3D solder paste detector) : 4, SMT machine, 5, the first piece of detector: 6, reflow welding, 7, plate machine: 8, AOI detection, 9, X-Ray

PCB board welding requirements in PCBA processing
17Mar
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PCB board welding requirements in PCBA processing

PCBA processing and welding process requirements for PCB board: 1. Heat resistance, 2. PCB shape, 3. PCB size, 5. PCB process edge, 6. PCB reference identification point, 7. Plate design, 8, can withstand solvent washing

How to deal with SMT patch bulk material?
17Mar
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How to deal with SMT patch bulk material?

The advantages of PCBA processing clean free technology: 1, a large amount of saving cleaning labor, equipment, site, material (water, solvent) and energy consumption; 2. Save working hours and improve production efficiency; 3, advanced production technol

Specification for PCB storage and inspection in SMT factory
17Mar
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Specification for PCB storage and inspection in SMT factory

PCB inspection contents: ① appearance inspection: ② size measurement: ③ furnace temperature test: ④ pad welding force test: ⑤ Check the PCB board factory report

Influence of SMT material on welding quality of PCBA
17Mar
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Influence of SMT material on welding quality of PCBA

When the welding ends or pins of components are oxidized or contaminated, welding defects such as poor wetting, virtual welding and voids will occur in reflow welding. Poor coplanar properties of components will also lead to welding defects such as virtua

How do PCBA processing plants select high quality reflow soldering?
17Mar
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How do PCBA processing plants select high quality reflow soldering?

The heating methods of reflow welding are generally divided into two categories: one is by the red lamp and adapted tube heater; The other type is ceramic plate, aluminum plate and stainless steel plate heater.

PCBA board aging test standards and methods
17Mar
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PCBA board aging test standards and methods

pcba aging test standards: 1, low temperature work, 2, high temperature work, 3, high temperature and high humidity work

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