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Lead-free solder bar, wire, balls knowledge
Sep 09, 2022
09-09
2022
Tin/Lead-based solder is the most commonly used solder in electronics assembly, but in the last year there has been a push across the industry to switch to lead-free solder bar. The rationale is that there is a growing understanding of lead use and its adverse effects on human health.
Health hazards associated with lead include neurological and reproductive disorders, and neurological and physical developmental delays. Lead poisoning is particularly harmful to the neurodevelopment of young children.
The important role of adding surfactants in solder paste
Sep 09, 2022
09-09
2022
Surfactants are very common in our production and life, such as our common styrofoam, the foam used for shaving, and also in detergents. It is added in the industry, and it also exists in personal care products. Of course, this substance is also necessary in lead-free solder paste. Because the surface tension of the metal to be soldered needs to be improved, the solder paste manufacturer adds a small amount of active agent. It can make the product have good moisturizing performance and speed up the welding process. Surfactants are composed of two ions with completely opposite physical properties.
Soldering innovation of solder wire, tin bar and solder paste
Sep 08, 2022
09-08
2022
Solder wire, tin bar, solder paste welding material, electronic products are produced. Because the melting point of copper is 1085C, the melting point of solder wire, tin bar, and solder paste is 2353C, or even lower. As long as it is assisted by solder wire, tin bar, and solder paste, it can reduce more than 800 degrees, which significantly reduces production costs and technical barriers.
How to reduce solder paste waste
Sep 08, 2022
09-08
2022
Solder paste manufacturer's suggestion 1: Choose a suitable solder paste.
The main component of solder paste is a paste made by mixing metal powder and flux. Can the electronic components be well attached to the circuit board during the production process of the SMT manufacturer? The quality of lead-free solder paste is a very critical control point. A suitable solder paste can not only improve the soldering yield of the production line, but also greatly improve the soldering performance of the circuit board, which is the most reliable guarantee for the soldering quality of the circuit board. A good quality solder paste will have the following parameters.
Environmental requirements for lead-free solder bars in the electronics industry
Sep 07, 2022
09-07
2022
The earliest and most important driving force for the electronics manufacturing of lead-free products mainly comes from two EU directives (WEEE and ROHS). These regulations explicitly prohibit the use of heavy metals such as lead, cadmium, mercury and hexavalent chromium in electrical and electronic products. PBB and PBDE are two flame retardant materials.
What should be paid attention to when welding lead-free solder wire
Sep 07, 2022
09-07
2022
When using lead-free solder wire, you must be careful not to touch the road surface with your hand, and feel that the battery is charged, including the solder pen cover, which may cause an electric shock accident. Professional technicians should also wear protective clothing as much as possible during the operation, mainly because liquid organic solvents will be generated during the whole process of electric welding, and it is very easy to burn and blister without wearing protective clothing.
Is the solder rod and the welding rod the same welding material?
Sep 06, 2022
09-06
2022
First of all, it is certain that solder bars and welding rods are not the same thing. solder bars are a kind of product in soldering tin. The main components are alloys composed of tin, silver, copper, lead and other metals. According to environmental protection standards, they can be divided into lead Two kinds of tin bars and lead-free environmentally friendly tin bars are widely used in the electronics industry, and are generally used for circuit connection of integrated circuits or welding of small items on circuit boards.
What is the difference between solid core solder wire and flux cored solder wire?
Sep 06, 2022
09-06
2022
The flux-cored solder wire leaves a channel inside for placing the rosin flux, which can better help product soldering. The solid core solder wire, as the name implies, refers to the solid core of the solder wire, and no rosin flux is poured in the middle, hence the name solid core solder wire.
Why does the phenomenon of tin explosion and tin explosion occur during welding?
Sep 05, 2022
09-05
2022
The phenomenon of exploding tin and exploding tin means that when the solder wire (tin wire) is in the process of welding, when the high-temperature soldering iron tip touches the solder wire, it will make a cracking sound, and at the same time, small tin beads will burst out. It is the phenomenon of fried tin.
How to reduce solder paste waste
Sep 05, 2022
09-05
2022
The main component of solder paste is a paste made by mixing metal powder and flux. Can the electronic components be well attached to the circuit board during the production process of the SMT manufacturer? The quality of lead-free solder paste is a very critical control point. A suitable solder paste can not only improve the soldering yield of the production line, but also greatly improve the soldering performance of the circuit board, which is the most reliable guarantee for the soldering quality of the circuit board.
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