Immediately after soldering, start visual inspection of solder joint. Good magnifying lamp (or a microscope) is required for proper and thorough inspection. Use an ohm-meter to test a solder joint for continuity. Adjacent components may be bridged together or the joint may need additional solder for good electrical continuity - too much solder will cause bridging and too little solder can cause weak solder joints.
I soldering wires together. But other tutorials confirm that the process is the same as you described) for a few seconds, then apply the solder to the other side of the wires as you recommend and other tutorials recommend as well. NOT to the iron tip. It doesn't matter how long I leave the iron or solder applied to the wires or how still I hold either, nothing happens. I have not been able to get any solder to melt onto any wires. It is becoming very frustrating. Any help would be appreciated.
Molten solder forms a heat bridge between the tip and the solder joint. This solder bridge provides the better and quicker transfer of heat into the solder joint. Continue heating and then apply some solder to the solder joint, not to the tip of soldering iron. Solder should melt and flow smoothly onto the copper surface of pad filling a gap between component lead and copper pad. Two most common problems with soldering are adding too much or not enough solder.
And electronic circuits and soldering irons. ©2013 Basic Electronics Tutorials www.electronics-tutorials.ws Page 3 1.0 ELECTRICAL THEORY. Both the solder pad and the component lead or pin. A small drop of solder on the tip will help to transfer the heat to the joint quickly. Apply the solder Touch the end of the solder to the joint so that it contacts both the solder pad and the component lead or pin. It should melt and flow smoothly onto both the pin and the pad.
It is important not to hold the iron on the joint for too long. It should be retained there long enough for the solder to flow freely onto the joint and then removed. If it is held on the joint for too long then the flux will burn off and the solder will oxidise and a dry joint will be formed. Although certain guidance can be set down to summarise the best methods for soldering, it is a skill that is learned by actually dong it.
Good magnifying lamp (or a microscope) is required for proper and thorough inspection. Use an ohm-meter to test a solder joint for continuity.
Soldering is process of joining two metals together with soldering iron by the use of a solder to form a dependable electrical joint. This is a basic soldering guide for beginners about hand soldering with a soldering iron. I hope that it will be good help for most of your DIY projects from electronics. If you are experienced in soldering, your comments are welcome in 'comments' area. In this instructable I will cover the following topics: - safety precautions before we start soldering operation -choosing appropriate soldering iron and solder - preparing for soldering -soldering -inspection of solder joints. Most of solder wires or solder paste contain lead (solder alloy is mixture of tin and lead). During soldering operation lead may produce fumes that are dangerous for your health.
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Because of this it is now illegal to solder many joints in Aerospace and transportation where vibration and movement occur. Getting a good hot iron to quickly heat up the joint then getting it off quickly is the trick. In aerospace Anderson connectors are often used--they require a special crimper but eliminate the need to solder connections and provide a superior joint.
• Hold wires to be heated with tweezers, pliers or clamps to avoid receiving burns on your fingers from objects that are heated. • Wear ESD (Electro-Static Discharge) protection if you are going to solder electro-static sensitive components such as CMOS components. For most of DIY projects it will be good enough to wear ESD wrist straps (shown on the picture below). • Wash your hands with soap and water after soldering. Main requirement in the process of soldering is heat.
During soldering operation lead may produce fumes that are dangerous for your health. In addition, soldering wire usually has a flux in the middle of wire. There are different types of cored solder with different solder to flux rate. Flux containing rosin (colophony) produces solder fumes that, if inhaled, can be hazardous. • Soldering should be performed only in a well-ventilated area.
Soldering Processes Tutorial Includes • • • • • • • • • • Soldering is a technique that is essential in the construction of electronic equipment. The concept of soldering ahs been used since the very earliest days of radio and electronics, and the basic concept has remained unchanged, although many advances have been made, and the reliability and safety of the soldering process have greatly improved over the years. Soldering in the production of electronic equipment can take many forms. In the mass production of electronic equipment, automated techniques are widely used, and techniques such as wave soldering, or infra-red reflow soldering are likely to be used. However the concept of manual soldering is still widely used both in commercial and home environments. The use of a soldering iron and leaded electronic components is still used in a number of situations.
This needs to be done using skill and the right equipment so that no damage is caused. While de-soldering tools are helpful a full solder station is an essential item.
Temperature of iron can be adjusted with the front panel temperature control knob - you can precisely control the temperature of soldering iron within 9 degrees Fahrenheit. This means that you can rest assured that your soldering iron is hot enough and ready for soldering, and at same time you know that it is not too hot to burn components on circuit board.
Which soldering iron is the best soldering iron for you depends on the types of soldering projects that you plan to do. Click here if you wish to read reviews about some most popular soldering irons. For every soldering project you need enough heat to quickly melt the solder and apply it to solder joint, but at the same time you do not want too much heat that can burn or melt delicate electronic components on circuit boards. If you do not pay attention on temperature of iron you can accidentally ruin your soldering project by applying too much heat. Too much heat from soldering iron can damage or even lift and break copper conductors and pads on circuit board as well.
It is then wise to check that the solder has adhered to the item properly. With the items tinned as required, the soldered joints can be made. The components should be secured in position. When leads are being soldered to tags, some like to wind the leads around the tag to give increased mechanical strength. If this is done then it is considerably more difficult to unsolder if there is a problem later. With the surfaces to be soldered brought together the soldering iron should be applied. The solder should then be brought to the joint and solder melted over the area to be soldered.
• Never leave your hot iron down on anything other than an iron stand. • Keep flammable liquids and materials (such as alcohol, solvent etc.) away from the work area. • Wear eye protection.
Thermal linkage can be significantly increased by adding a small amount of solder to the line of contact between iron tip and surface. Molten solder forms a heat bridge between the tip and the solder joint. This solder bridge provides the better and quicker transfer of heat into the solder joint. Continue heating and then apply some solder to the solder joint, not to the tip of soldering iron. Solder should melt and flow smoothly onto the copper surface of pad filling a gap between component lead and copper pad.
The soldering iron bit should be cleaned. Many soldering iron stands have a holder for a damp sponge.
Posted this in the chat box but I figure maybe more people see it here. I only found about these today, they were posted about 5 months ago. Basic Soldering Lessons. It looks like it's their actual teaching video tape from the '70 - '80 but imho very few things in the lessons are outdated and there's plenty of quality information with demonstrations, so I'm sure someone will find these interesting.
Click here if you wish to read reviews about some most popular soldering irons. For every soldering project you need enough heat to quickly melt the solder and apply it to solder joint, but at the same time you do not want too much heat that can burn or melt delicate electronic components on circuit boards. If you do not pay attention on temperature of iron you can accidentally ruin your soldering project by applying too much heat. Too much heat from soldering iron can damage or even lift and break copper conductors and pads on circuit board as well. Electronic temperature control means that you will always know if the tip of the soldering iron is hot enough for the material you are soldering. It makes your soldering process a whole lot easier.
Often printed circuit boards come ready tinned and the solder will flow onto them easily. In addition to this it is sometimes necessary to tin the other areas that will take the solder. Typically this may include the leads of wired components and any other surfaces such as tag strips, or areas on a connector to be soldered. Tinning is accomplished simply by applying the soldering iron to the item to be tinned and melting some solder onto the iron bit in such a way that it flows onto the work piece. This should leave only a thin film of solder over the area to be tinned. Once this has occurred the soldering iron should be removed, and not held on the area any longer than is needed.
Soldering iron holder or stand In view of the fact that soldering irons reach temperatures in excess of 200 C, it is essential for health and safety reasons that they are held in a proper holder or stand when not in use. This will offer protection from being accidentally touched - an essential requirement in any laboratory situation. Soldering iron stands are available for professional soldering irons. Solder Suitable solder is also required. This is normally in the form of a reel of solder 'wire'. Today lead free solder is usually required for commercial manufacturing applications to comply with health and safety as well as environmental directives for many countries. The solder that is used is the solder manufactured for electronic applications.
Flux containing rosin (colophony) produces solder fumes that, if inhaled, can be hazardous. • Soldering should be performed only in a well-ventilated area. • Use smoke absorber • Soldering iron is very HOT (for most of soldering operation temperature of iron is 350 -400 degrees Celsius). Never touch tip of the soldering iron with your hand.
This contains cores of flux to enable the joints to be cleaned so that good reliable joints are produced. Wire cutters A good pair of wire cutters is needed when soldering. Often wires need to be trimmed after components have been soldered in place.
There are wide selection of soldering stations, soldering irons and soldering guns. They come in a wide variety of shapes, sizes and wattages. Which soldering iron is the best soldering iron for you depends on the types of soldering projects that you plan to do.
• Wash your hands with soap and water after soldering. Main requirement in the process of soldering is heat. Soldering iron is tool that generates heat. There are wide selection of soldering stations, soldering irons and soldering guns.
The solder station comprises equipment for solder and de-soldering. The de-soldering elements of the solder station normally comprise a heated element with a central hole that is connected to a vacuum pump. In this way the solder station can be used to effectively apply heat and remove the solder from the joint. This means that a solder station will be the most effective way of ensuring that any rework is undertaken with the minimum of risk to the board. Soldering basics There are a number of requirements for a soldered joint. The main two are: • It should provide a reliable electrical connection • It should provide sufficient mechanical strength to hold the component(s) in place To achieve these aims it is necessary that the joint is made properly.
Once the components are loaded, the board can be placed over the components to hold them in place as the board is turned over. This makes the process of inserting the components and soldering them far easier. Other soldering equipment In addition to the very basic items mentioned above, a fully equipped soldering and re-work area will have a variety of other tools. One of the major elements that is always required in any electronics production area is the ability for re-work. There will always be board failures and as a result, components need to e removed and replaced.
If this is done then it is considerably more difficult to unsolder if there is a problem later. With the surfaces to be soldered brought together the soldering iron should be applied. The solder should then be brought to the joint and solder melted over the area to be soldered. One of the keys to making a good joint is to use the correct amount of solder. Experience tells how much should be used in a given situation, but it should be sufficient to cover the area to be soldered.
All soldering operation should be completed in less than 2 seconds. The time of soldering operation depends on the temperature of your iron and size of the joint. If we keep applying heat longer than 2 seconds, this can break the pads or conductors on circuit board or damage temperature-sensitive components. Remove the soldering iron while keeping the joint sill - do not move circuit board for a few seconds to allow the joint to cool down and solder to solidify. Clean flux residues with ethanol alcohol or some other solvent.
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