In order to achieve a good combination of solder and weldment, the welding surface must be kept clean. Even weldables with good weldability may produce harmful oxide film and oil stains on the surface of weldparts due to storage or contamination. The dirt
The function of this stage is to clean the welded interface of the weldment, and clean the oxide film and attached dirt on the interface.
Accumulated service for thousands of electronic enterprises, involving many types of automotive equipment and industrial control motherboard SMT processing services, products are often exported to Europe and the United States, quality can be affirmed by n
In the actual processing of damp MSD, is generally baked in accordance with the manufacturer's original packaging bag warning label baking conditions. For components manufacturers do not have corresponding requirements, it is recommended to use high tempe
Different products, the selected coil diameter is different, the opposite inductance, the DC resistance is not opposite. In high frequency circuit, DC resistance has great influence on Q value
Firstly, the overcurrent protection current is preset, and then the voltage value of the regulated power supply is gradually increased, and the input current, input voltage and output voltage are monitored. If there are no problems such as over-current pr
After welding parts to use the soldering iron and tin wire, welding will be maintained at a high temperature of the soldering iron contact the part foot to solder, until the temperature rises enough to melt the tin wire temperature, and then add the tin w
The solder resistance design between the pad and the pad, and the solder resistance graphic specifications should conform to the design of the welding end distribution of specific components; If the open window block welding between the pad and the pad ca
the device on the same printed circuit board should be arranged as far as possible according to the size of its heat and the degree of heat dissipation, small heat or poor heat resistance devices (such as small signal transistors, small-scale integrated c
High-end equipment can be attached to precision shaped parts, BGA, QFN, 0201 materials. Also can be template patch, loose material hand. Sample and size batch can be produced, proofing from 800 yuan, batch 0.008 yuan/point, no start-up fee
Welding distanceThe gas generated during welding will cause harm to the human body, so when using a soldering iron, the distance between the nose and the soldering iron should be more than 30cm, and 40cm is a more appropriate distance.
High-end equipment can be attached to precision shaped parts, BGA, QFN, 0201 materials. Also can be template patch, loose material hand. ▪ Sample and size batch can be produced, proofing from 800 yuan, batch 0.008 yuan/point, no start-up fee.
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