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The working principle and characteristics of the solder paste thickness tester
Nov 28, 2022
11-28
2022
The solder paste thickness tester is a device that uses laser non-contact three-dimensional scanning intensive sampling technology to measure the thickness, area, volume, etc. This equipment is widely used in the field of SMT production and placement, and is an important measurement equipment for controlling the quality of solder paste printing.
The principle and advantages of laser tin ball jet welding
Nov 25, 2022
11-25
2022
First of all, we need to understand the working principle of laser solder ball spray welding. The solder balls of the laser spray tin soldering welding system are transported from the solder ball box to the nozzle. After being heated and melted by the laser, they are sprayed out from the special nozzle and directly cover the pad without additional help. Flux, no other tools. Solder ball spray welding is adopted, and the welding precision is high, and there is a requirement for temperature or the soft board is connected to the welding area.
Quality requirements, types and application advantages of solder bars
Nov 25, 2022
11-25
2022
The solder bar is a bar-shaped tin solder, referred to as a tin bar for short. Solder bars are mainly used for wave soldering and dip soldering in SMT patch processing, and a small amount is used for flame brazing or electric soldering of large structural parts and long welds.
The principle of laser solder ball welding and the introduction of tin process
Nov 24, 2022
11-24
2022
Solder balls are mostly used in the processing and production of circuit boards. However, due to the inhomogeneous fusion process of flux and metal in commonly used solder balls, it is easy to cause metal solution to splash, resulting in short circuit of the product, which has a bad influence on the stability of product quality.
How to control the temperature of solder wire during use?
Nov 24, 2022
11-24
2022
When we use solder wire for welding, we should effectively control the temperature, so as to ensure that the solder wire has a better welding effect.
1. When using solder wire, if there is still solder wire left in the tin furnace, do not cut off the heating power supply of the tin melting furnace. At this time, the temperature should be properly controlled, and the set temperature should not be too high , to avoid accelerating the oxidation reaction of the tin surface. Generally, we can control the temperature of 63/67 solder wire at about 250 degrees Celsius, the temperature of 50/50 solder wire should be controlled at about 280 degrees Celsius, and the temperature of 30/70 solder wire should be controlled at about 300 degrees Celsius.
Which is better to use, lead-free solder wire or leaded solder wire?
Nov 23, 2022
11-23
2022
Lead-free solder wire and leaded solder wire are divided into two categories according to the environmental protection standards of solder wire. Recently, some customers have asked whether it is better to use lead-free solder wire or leaded solder wire? This problem is actually a matter of benevolence and wisdom, and it has a certain relationship according to different products and component materials.
The composition type of solder paste and the role of flux
Nov 23, 2022
11-23
2022
The use of solder paste is inseparable from the SMT chip processing technology. Solder paste is a slurry or paste made of uniformly mixed alloy solder powder and paste flux. Solder paste is an indispensable soldering material in the SMT process. It is widely used in reflow soldering and is one of the more important electronic accessories in the electronics industry.
How many quality problems are there in solder wire?
Nov 22, 2022
11-22
2022
For the soldering industry, the melting point of solder wire without lead must be increased by at least 20-45°C according to the difference in composition. In this way, the temperature setting of the soldering iron tip must also increase accordingly. As the temperature increases, the evaporation rate of the flux also increases, and the flux is the key factor that determines the metal activity (fluidity) after the solder wire is melted.
What are the principles and advantages of laser soldering
Nov 22, 2022
11-22
2022
Laser soldering is a laser welding technology that uses laser as a heat source to heat solder paste and melt it. It is widely used in the electronics and automotive industries, such as the production process of PCB boards, FPCB boards, and connecting terminals. Laser welding can be divided into several common application methods such as laser wire-feed welding, laser solder paste welding, and laser solder ball welding from the use of different consumables.
What points should be paid attention to when replacing lead-free environmentally friendly solder bars?
Nov 21, 2022
11-21
2022
The lead-free environmentally friendly solder bar has been operated in the wave soldering furnace for a long time, and the impurities residues produced by the accumulation of other metals will increase, which will interfere with the welding effect of the lead-free environmentally friendly solder bar.
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Catherine
Fannie
Avril
Chtherine
Fannie
Avril
