With the emergence of solder paste laser welding machine, giving everyone another choice when buying a welding machine, but it also brings more problems. For laser welding machine, everyone may stay in the old welding process, so in the choice of welding machine, between the old welding machine and laser welding machine always do not know how to choose. The reason people are so hesitant is because they don't know enough about laser welding machines. Some people who use laser welding machines ask "What is a laser welding machine? What industry products can use laser welding machine?
The basic principle of Zichen syringe soldering machine is through the "wetting", "diffusion" and "metallurgy" three processes to complete. After the solder is heated and melted locally in a small area by high energy laser pulse, it wets the solder joint and diffuses to the solder joint with the inherent tension of the solder, and forms an alloy layer after contacting with the metal layer of the solder joint, so that the two are firmly bonded. It is a new type of welding method, mainly used for welding thin-walled material precision parts, can achieve spot welding butt welding stacked sealing welding, etc., small welding seam width, small heat-affected zone deformation, fast welding speed, weld seam flat, high welding quality, precision can be precisely controlled, high positioning accuracy, and it is easy for customers to achieve automated production, for customers to solve the labor costs, capacity efficiency and management difficulties and other traditional old-style It is easy for customers to realize automatic production, and solve the troubles brought by traditional old-style soldering machine such as labor cost, capacity efficiency and management difficulties.
What materials can be soldered with a syringe type laser soldering machine?
The welding process of laser soldering is divided into two steps: first, the laser solder paste is preheated, and while the paste is preheated, the solder joint is also preheated, and then the high temperature melts the paste into a tin liquid, allowing the liquid to completely wet the pad and eventually form the solder. The use of laser solder paste welding, with high energy density, high efficiency of heat transfer, non-contact welding, solder can be solder paste or wire, especially suitable for welding narrow space solder joints or small solder joints precision welding. It is also suitable for products with particularly high quality requirements that require local heating.
In line with the demand of the electronic market for automatic precision soldering, such as the bump on the outer lead of BGA, the bump on the chip of Flip chip, the rework of BGA bump, the connection of the lead of TAB device package, sensors, inductors, hard disk heads, camera modules, vcm voice coil motors, CCM, FPC, optical communication components, connectors, antennas, speakers, loudspeakers, thermal components, photosensitive components, etc., which are difficult to solder in the traditional way. The use of laser soldering equipment is also becoming more and more widespread on products that are difficult to solder by traditional methods.
Almost all of these industries use laser soldering machines. The advantages of laser soldering machines are energy concentration, no pollution, small solder joints, wide range of weldable materials, high applicability, high efficiency and high speed. Also, the following requirements apply to laser welding.
- Products that require welding seams that need to be welded are welded by laser welding, not only with small welds, but also without welding.
- Products with high automation in which case the laser welding equipment can be programmed manually and the path is automatic.
- Products that can be welded at room temperature or under special conditions can be stopped at room temperature or under special conditions and the laser welding equipment is easy to install.
- Some inaccessible parts need laser welding equipment which can weld inaccessible parts and achieve non-contact long distance welding with high sensitivity.
