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Precision application of solder paste laser soldering machine in PCB electronics industry
Nov 24, 2022
11-24
2022
Solder paste laser welding technology uses semiconductor lasers as the light source, and the commonly used laser wavelengths are generally 915nm or 976nm. Different from the traditional solder paste soldering method, the former solder requires laser-specific solder paste. The principle is that the laser energy can be precisely controlled through the optical lens and focused on the corresponding solder joints, which belongs to the non-contact heating welding technology.
The distinction between silver-containing tin wire and tin-copper tin wire
Nov 24, 2022
11-24
2022
Lead-free tin wire is generally divided into silver-containing tin wire and tin-copper tin wire. So how to distinguish these two tin wires? Let me introduce it to you.
1. Due to the role of silver metal, silver-containing solder wire has better, stronger firmness and stronger solder joints than tin-copper lead-free solder wire.
Is there any relationship between the short life of the LED display and the solder paste?
Nov 23, 2022
11-23
2022
The selection of solder paste in the LED industry can generally use lead-free LED solder paste and leaded LED solder paste. If lead-free solder paste is used, high, medium and low temperature solder paste is generally used. Lead-free solder paste If you want to solder cheaper or low-melting point components, use tin-bismuth low-temperature solder paste. If you want good soldering quality, use tin-bismuth-silver medium-temperature solder paste.
Knowledge of rosin solder wire
Nov 23, 2022
11-23
2022
Rosin solder wire, as its name implies, is solder wire containing rosin. The production of solder wire is roughly divided into two methods due to different production processes. One is solid solder wire, that is, solder wire without rosin, and the other is It is a solder wire injected with rosin core during the production process. Let us introduce the little knowledge about rosin solder wire in detail below:
Six differences between high temperature solder paste and low temperature solder paste
Nov 22, 2022
11-22
2022
What is "high temperature" and "low temperature"?
Generally speaking, it refers to the difference between the melting points of these two types of solder paste. Conventional high-temperature solder paste with a melting point above 217°C is generally composed of tin, silver, copper and other metal elements. The reliability of high-temperature lead-free solder paste in LED patch processing is relatively high, and it is not easy to desolder and crack.
Advantages of Laser Soldering
Nov 22, 2022
11-22
2022
1. Laser solder paste welding only heats the connection part locally, without any thermal influence on the component body.
2. The solder paste heating speed and cooling speed are fast, the joint structure is fine and reliable, and the reliability is high.
3. Non-contact solder paste processing, no stress caused by traditional welding, no static electricity.
How many technical terms do you know about poor solder wire welding?
Nov 21, 2022
11-21
2022
In the soldering tin industry, when welding components and other electronic products with solder wire, certain poor welding will occur due to improper operation or other reasons. The technical terms are introduced to everyone, so that everyone can understand the cause and the corresponding solution:
The terminology of poor solder wire welding is as follows:
The difference between flux and rosin
Nov 21, 2022
11-21
2022
Many friends who are engaged in the electronic soldering industry often confuse the concepts of flux, rosin and solder paste. In fact, rosin and solder paste belong to flux. Its purpose is to increase the reliability of welding between the solder and the object to be welded during the welding process. The main function of the flux is the wetting effect. , Remove oxidation, assist heat conduction, reduce metal surface tension, make solder joints beautiful, etc.
Understanding of solid core lead-free solder wire
Nov 18, 2022
11-18
2022
The solid core lead-free solder wire is named Siyi, which refers to the tin wire without flux rosin and other chemicals in the tin wire. Since there is no chemical substance in the solid core lead-free solder wire, it can achieve a smokeless effect when burned. , but due to the lack of active agents and combustion aids, the tinning efficiency is low and the cost is high.
Characteristics and application of lead-free environmentally friendly solder paste
Nov 18, 2022
11-18
2022
The lead-free environmentally friendly solder paste is in accordance with the IEC halogen-free standard, the EU "RoHS" standard and the American IPC-TM-650 standard, using a new high-value modified rosin resin with high oxidation resistance and composite anti-oxidation soldering environmental protection technology.
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Catherine
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Avril
Chtherine
Fannie
Avril
