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The tinning allows the solder to wet the joint faster, which results in more rapid heating of the joint and faster solder flow into the hot joint. Rapid completion of making the joint allows quicker removal of the soldering iron (or other heat source) and less excess heat flow through the leads to the component.
Factory pretinned component leads also prevents corrosion prior to use, which both protects parts in storage and makes soldering faster and cleaner by not having to use lots of flux to remove corrosion.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoThat way they contact and make a joint faster. In circuits this also helps NOT to heat up electronic components.
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What is the type of solder that would be used in hard soldering?
1.4 Soldering Methods1.4.1. Hand soldering: It is the oldest method of soldering, it is still popular method in certain kinds kinds of applications:Development of prototype boardsLow volume productionSoldering of extremely temperature sensitive componentsSolder reflow of fine pitch components using hot barRework or repair of machine soldered boardsThe main disadvantages are operator training, speed, and consistent quality.1.4.2 Machine Soldering:Two prominently used machine soldering types are:A. Wave Soldering - Primarily used for soldering through-hole components on to PCBs.B. Reflow Soldering. - Used for soldering SMD components on to PCBs. Reflow soldering of SM components have the following advantages over manual soldering:Mass solderingConsistency in manufacture through precise control of process parameters.flexible for small production runs as well.
How do you properly clean the joints to be soldered?
There are several ways of soldering electrical joints. Automated methods use wave soldering in which a circuit board is passed over a bath of solder. Re-flow soldering uses solder paste that is applied to the circuit board and then heated in an oven until it melts and flows across the joint. Manual soldering is largely still carried out with hand held soldering irons. The standard technique is to apply the tip of the iron to the joint and then feed solder onto the joint as the iron heats it. This method allows the solder flux to flow around the joint before it is affected by the heat. Applying the solder to the iron before touching the joint will often result in a dry joint because the flux will burn away and evaporate before it reaches the joint. Most electronic components have limits for the amount of time the soldering iron can be in contact with each pin. Generally it is in the order of 5 or 6 seconds. With the introduction of lead free solder, temperatures need to be higher to get a good joint and therefore the contact time with each component is reduced. With a shorter contact time, it is even more important to heat the joint and apply solder in an efficient manner. Production and commercial soldering skills take years to develop with apprenticeships lasting up to three years. To describe soldering techniques in just two or three paragraphs is to merely scratch the surface. Although there are many written instructions for soldering joints, there is no substitute for practice and learning from skilled wiremen.
How much is tinned copper per pound scrap?
20 pounds
What preparations need to be carried out on the components before assembling them?
know the needs
Which material is used of soldering wire?
copper
Why is it important to keep the tip of your soldering iron tinned?
To keep the tip from rusting.
A soldering iron used for electrical repair jobs will work properly if its tip is?
Clean and tinned with melted solder
Why is it important to ensure the soldering iron tip is clean and pre-tinned with solder?
to get the maximum heat at the tip surface
How do you avoid hand soldering?
Wave soldering is a process where components are held in place and the entire board is soldered at once.
How does Soldering Tools help you with troubleshooting?
A soldering tool can be used to replace faulty components on the computers circuit board.
What is the purpose of soldering?
Soldering is the process of using a bubble of hot metal to bond two electronic components or circuits together.
What is the type of solder that would be used in hard soldering?
1.4 Soldering Methods1.4.1. Hand soldering: It is the oldest method of soldering, it is still popular method in certain kinds kinds of applications:Development of prototype boardsLow volume productionSoldering of extremely temperature sensitive componentsSolder reflow of fine pitch components using hot barRework or repair of machine soldered boardsThe main disadvantages are operator training, speed, and consistent quality.1.4.2 Machine Soldering:Two prominently used machine soldering types are:A. Wave Soldering - Primarily used for soldering through-hole components on to PCBs.B. Reflow Soldering. - Used for soldering SMD components on to PCBs. Reflow soldering of SM components have the following advantages over manual soldering:Mass solderingConsistency in manufacture through precise control of process parameters.flexible for small production runs as well.
Why is it not suitable to use a soldering gun to solder modem electronics component?
Solder guns as a rule have wider tips than soldering irons/soldering pens.You might not be able to reach just the spot that you want to with a solder gun given the size of the components, and how tightly packed they are on a modern circuit board. Many modern components, such as integrated circuits, will be damaged by the high heat levels produced by soldering guns.
What are the four steps for correctly soldering components to a printed circuit board?
1. Remove the soldering iron from the holder and wipe the tip on a sponge. 2. Heat the joint to be soldered. 3. Apply solder to the joint. 4. Apply a small bit of solder to the tip of the soldering iron and return it to the holder.
What is the purpose of soldering and desoldering and related precautions?
Soldering is the process by which two or more conductive metal are joined by melting a metal (the solder) into the junction to ensure an electrical connection. De-soldering is the process of removing the solder to permit troubleshooting or the removal of components.
What is flux and in which operation is it used?
Flux is used to prevent oxidation while soldering wires and components in electronics.
What is the best soldering iron and tip to use on circuit boards?
Soldering irons come in a variety of sizes and shapes. There is a wide selection of soldering irons, soldering pencils, soldering stations and soldering guns available on market in the USA.Which soldering iron is the best soldering iron for you depends on the soldering work you are planning to do and how often you are planning on using your soldering iron. The following four factors should be taken into consideration when picking a soldering iron that will be used for soldering projects on circuit boards:1) ) type of the soldering tools2 wattage of the soldering iron3)temperature control4) tip size and shapeTypes of soldering toolsAll soldering tools can be divided in four different groups-Soldering pencils-Soldering station-Soldering rework /repair stations systems-Soldering gunsSoldering pencilsSoldering pencils are the simplest (and the cheapest) soldering tool. Soldering pencils are good only for simple do-it-yourself projects. The price range of the soldering pencils is $10-$30Soldering stationsSoldering station consists of two parts: soldering pencil and a power station. Soldering pencil is attached to a power station. Power station controls temperature of the iron tip in the wide range. It automatically keeps the iron tip at an appropriate temperature. Desired temperature of soldering iron is set with knob on the face plate of power station. Soldering station can be used for most of soldering projects. It can be used for soldering of through-hole components on circuit board as well as for soldering of very fine surface-mount components as small as 0603 and 0805. The price range of the soldering stations is $40-$150.Soldering rework /repair stations systemsSoldering rework/repair systems are complex soldering tools which are mostly used in industry or in the high-volume manufacturing facilities. This soldering systems are the most expensive soldering tools since they usually consist of power station and 4 or 5 hand pieces including soldering iron, hot-air gun, tweezers , vacuum pump which is used for the de-soldering work. The price range of the soldering systems is $250-$2500.Soldering gunsI do not recommend using soldering guns for fine soldering projects on circuit boards.The most popular brand names for soldering irons in the USA are Weller, Pace and Hakko. Aoyue soldering irons are less popular brand name in the United States then Weller or Pace. However, Aoyue soldering irons are much cheaper and they are good combination of quality and price.There is a wide selection of iron tips. Iron tips come in different shapes and sizes. For most soldering projects you can use screwdriver tip 0.062" or 0.032". For fine soldering projects and for soldering of small surface-mount components you can use conical tip 1/16".ConclusionI recommend a temperature controlled 50W soldering station. This soldering station will be excellent tool for most of soldering projects. My top recommendations are:-Weller WESD51 soldering station (digital)- Weller WES51 soldering station (analog)- Hakko FX-888 soldering station- Aoyue 2702A soldering station- Pace ST-25 soldering station
