Analysis of the working principle of lead-free wave soldering machine

 

Q : How many hours does a lead-free wave soldering machine heat up ?

A : This depends on the power of your tin furnace. Generally speaking, it is 3 hours faster . It takes 4-5 hours slower .

Q: Compared with dip welding, wave soldering machine which has the advantage of

A : Comparative advantages and disadvantages of AC spot welding machine and DC spot welding machine 1) DC welding machine is good; small arc splashing welding quality is reliable; 2 ) relatively small kind, commonly known as 'bag welding machine', power is generally only 5 - Less than 6 kilowatts, easy to carry. 3 ) The welding machine with a relatively small volume may have less direct current, because the direct current needs to consider the rectifying device, which occupies space, and it also needs to consider heat dissipation.

Q : What is the power of general reflow soldering machines, dual wave soldering machines, dip soldering machines and angle cutters? ?

A : These devices are selected according to the amount of production tasks. There is power to have a large school to know the power, or to quickly look at the nameplate of each machine. Reflow Machine 2--5kW Dual Wave Soldering Machine 7---22Kw Dipping Welding Machine 1---3kw Cutting Machine 05---2kw

Q : Information about wave soldering machine maintenance?

A : Wave soldering process research - on the control of "weld welding" wave automatic welding technology, has been used in the electronics industry for many years, but the late failure of the solder joint is still a headache, it has a great impact on the electronic The quality and reputation of the product. This article intends to make preliminary research and discussion based on practical experience. The so-called "late failure of solder joints" means that the quality of solder joints on the surface is acceptable.

Q : What is the role of thinner in the wave soldering machine?

A : The main component of the solvent used in wave soldering is rosin. The main role is flux and oxidation, so that the solder can evenly attach to the pad of the PCB board. Improve welding quality.

Q : How to get copper from the wave soldering machine

A : Tin furnace copper exceeds the standard processing method first tin cylinder exit; remove the large, wavelet peak nozzle, and remove the tin slag; the tin cylinder was heated to 290 ~ 310 °C, until the temperature is constantly stirred tin liquid in the tin cylinder about 30 ~ 50 minutes; close the tin cylinder and allow the tin cylinder to cool naturally to about 230 °C. At this point, there will be some needle crystals on the surface of the tin liquid. These crystals are copper-tin alloys.

Q : What happens to the air produced by the rosin trachea of ​​the wave soldering machine nozzle? After the rosin trachea enters the air

A : Reasons: 1 , the air intake inside the rosin tube, under normal circumstances is run out of rosin is not added in time will cause this, 2 , rosin pipe damaged place will also enter the air treatment method 1 , timely add rosin 2 , If the tube is broken, replace the new air tube. 3 , remove the pipe at the end of the sprinkler head and discharge the rosin inside until the pipe has no air bubbles and then spray the pipe.

Q : Wave soldering machine equipment belongs to special equipment?

A : Wave soldering machine equipment belongs to special equipment, and relevant operators should hold certificates.

Q : Would you like to recommend a wave soldering machine with a relatively good value for money?

A : We purchased the wave soldering machine of Jin Lida not long ago from the Purchasing Department of our factory. The quality is good and the price is quite reasonable.

Q : Want to know which brand of wave soldering machine is currently sold on the market?

A : There are still many in the market, there is no specific comparison. We are using Jin Lida, the quality is also very good, and the service attitude is also very good, especially in communicating with customers, each time Very place.

Q : Wave soldering machine works

A : The principle of wave soldering is very simple. Before explaining it, it is very easy to understand if someone who is tin soldering or tinsmithing is experienced. Simply put, it consists of the following four parts. The first is the flux, then the preheating, then the tin furnace, and finally the cooling after the tapping. If you want to learn more about, you can refer to our factory, you actually explain or recommend a book: "Fast proficient electricity

Q : What lubricant is used for the wave soldering nozzle?

A : The flux of the tip leakage flux is insufficient to detect the thimble pressure. Do not spray to detect whether the nozzle is blocked, you can use pneumatic tube to clear. O -rings are mainly used to prevent air leakage. Lubricants can be used with normal-use butter. Tip rods should not be used as oils. The general no-clean flux nozzles are washed once a day, and the rosin type flux nozzles are cleared once every two hours without any nozzles being blocked at all.

Q : The company has an ultrasonic wave soldering machine. The noise is too loud. Workers are miserable. What is the reason? Is there a way to reduce or avoid it?

A : It can solve the problem that the workpiece will be resonated when the ultrasonic wave is welded. What you hear is the noise generated by resonance. These can be solved.   You can contact me

Q : In front of the wave soldering machine, there is a pine perfume. What is the machine name of the flux ? Thank you.

A : Just called a sprayer. I had a friend who specialized in this for more than a decade ago. So far, I changed the previous wave soldering foaming device to a sprayer, or supplied a wave sprayer to supply a matching sprayer. It has already been sold. Thousands of units, of course, he also produced wave soldering, as well as reflow soldering.

Q : After the wave soldering machine is started, the flux inside the tube cannot be pumped. As a result, the nozzle sprays intermittently. How can this be solved?

A : The above question Ai Liben flux is answered as follows: 1. The flux itself is corrosive, and the tube will be corroded by the flux for an extended period of time. Please check if the pipe is in good condition 2. Check if the pressure valve is loose and the pressure is not upside down. 3 , check the nozzle is blocked, it is recommended to regularly clean the nozzle.

Q : I would like to ask you , who knows how to detect and repair common failures of wave soldering machines?

A : The following are the main reasons for continuous welding ; 1 You spray too little flux. 2 Your preheating temperature is too low at the base temperature of 90 degrees. 3 Your angle is too low. 4 Stratospherical waves with rale flow phenomenon 5 Tin dross too much 6 Velocity at 1.2 m / min or so 7 Bonding between over-concentration is not easy to de-Sn 8 not on tin pad too large on tin very thin 9 tin furnace very hot Gao this is my opinion of my experience

Q : The principle of graphic expression without aluminum wave soldering machine

A : The working principle of the lead-free soldering machine is that the manipulator puts the electronic components according to the program in the designated position, and the circuit board is sent to the high-temperature lead-free furnace through the conveyor belt. Lead-free is an ROHS labeling requirement and is related to soldering and has nothing to do with equipment.

A : Judging the quality of solder wire mainly depends on the percentage of tin contained in it. Normally tin is good at 40% ( good low melting point, low lead content ) . The other main ingredient is lead. If the iron head is in the warehouse, don't polish it. There is a special layer of material on the surface. If the welding head is normal, it must be kept clean. If the temperature is too high, it will burn ( oxidize ) and it will not stick to the tin.

Q : Wave soldering machine startup operation steps?

A: 4 hours prior to starting the main power switch 1 is operated, the heating switch is turned on temperature tin (by automatic opening device comes with the holidays, the program automatically sets off) the valve 2 opens the exhaust port, the spray section is fully opened, the opening paragraph peak 2/33 Turn on each function segment switch in turn ( preheat 1~3 segments, flux, tin temperature, transmission chain ) 4 Wait until tin temperature and preheat zone temperature reaches the set temperature.

Q : Process of wave soldering machine ?

A : Nitrogen-type lead-free dual wave wave soldering machine 1. Lead-free process environmental design , configuration synchronization input and output board system to ensure PCB safety by transport 2. Built-in nitrogen generator space optimization design to make the machine installation footprint is small 3. Claw The unique design of the chain and solder pot is suitable for safe lead-free soldering systems. 1) Soldering furnace : The new furnace design is elegantly clean.