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What should the underside of a circuit board look like should the solder be flat spots or sharp points?
The solder joints should be convex and shiny.
How do you solder?
To solder, start by cleaning the surfaces to be joined with a wire brush or sandpaper. Then, apply flux to the surfaces to be soldered and heat the joint with a soldering iron until the solder melts and flows into the joint. Finally, allow the joint to cool and solidify before moving or using the soldered components.
Is soft solder a good conductor of electricity?
Soft solder is not as good a conductor of electricity as other metals like copper or silver. It has higher resistance, which means it will generate more heat and produce more energy loss when carrying an electric current. Soft solder is mainly used for joining metal parts together, not for conducting electricity.
Why wont windows and wipers work on 99 escalade?
There is a contact in the ignition switch that goes bad. It also powers the radio. So the switch probably does not work when ever it feels like it. I believe the ignition switch is going bad. There is a box under the center console that has bad solder connectors. Check each connector. When you wiggle it you should get a return to function..momentarily...repair the solder joint and you should be fine.
What is the function of the flux in soldering?
Flux can be in many different forms. it can be in the solder, it can be in a soft form like butter, or it can be in a pen like a tide stain stick. it is used on the solder iron and on the thing you're soldering to make a good surface for the solder to stick to. Basically it makes soldering easier, it can be done with out it.
What is meant by tinning stranded wires?
Tinning stranded wires refers to the process of coating the individual strands of a wire with a thin layer of solder. This helps to improve conductivity, prevent oxidation and corrosion, and make it easier to solder the wire to other components.
Is solder heterogenous or homogenous?
It could be either. Any type of liquid core solder (acid core, rosin core, etc.) is heterogenous, since there's the metal part and the core part. A solid-core solder is probably homogeneous.
Why would a blower not come on when the Lincoln Town Car 2000 and the motor was taken out and tested and works?
tbl could be with the blower motor speed controller. I had same tbl. Removed controller and remove cir. brd. from housing, and with a 10x or better mag. glass check connections on solder joints. mine had three joints with hairline cracks in solder joint. Re-solder and works like new again. better than $200.00 for a new controller..
Where can one purchase a solder station?
There are many places where one can purchase a solder station. One of the best places to purchase a solder station would be a hardware store like Lowes or Home Depot.
What happend with eminem in like a toy solder?
2pac died
Where do we buy lead free solder?
Looks like somebody is selling cheap solder here; http://detroit.craigslist.org/okl/tls/3755076901.html
What is soldering?
According to Wikipedia:"Soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal (solder) into the joint, the filler metal having a lower melting point than the workpiece. Soldering differs from welding in that soldering does not involve melting the work pieces. In brazing, the filler metal melts at a higher temperature, but the workpiece metal does not melt. Formerly nearly all solders contained lead, but environmental concerns have increasingly dictated use of lead-free alloys for electronics and plumbing purposes."Soldering is a process whereby two or more metal parts (wires, component leads, pipes, etc.) are joined by the melting of a metal between them. The melting metal is known as solder. Traditionally, it was usually composed of an alloy of primarily tin and lead, but due to current environmental regulations, the use of lead in solder is becoming rare. In common useage, the phrases "solder joint" and "solder connection" mean the same thing (see below), and are used interchangeably. The word "connection" by itself can refer to either a "solder connection" or to the metal parts before they have been soldered. Confused? It's gets easier when you look at how the word or phrase is used in a sentence... as follows. The soldering process requires the heating of the parts of the connection to "wetting" temperature, the temperature at which the solder will chemicaly alloy with the metal parts being soldered. This temperature is dependant upon the alloy of solder that is being used; with " traditional" alloys, it is approximately 500 degrees F. Current no-lead solders require considerably higher wetting temperatures. In either case, if "wetting" temperature is not reached, when the solder is applied to the connection, it will melt and flow onto the metal parts, but will not alloy with them, thereby causing a "cold solder joint". By the way, cold solder joints are NOT usually dull and grainey. Dull and grainey solder joints are overheated. Cold solder joints appear uneven and lumpy, and lay on the surface of the connection like water on a waxed car hood - the solder does not flow out smoothly. Depending on the application, the heat required to make the solder connection can be provided by a soldering iron, a solder gun, a torch, or a hot-air gun. Other methods exist, but are usually used only in automated processes. When a solder connection has been made properly, the connection is solid metal; there is no barrier or space between the parts of the connection. Essentially, the solder has blended with the parts of the connection, forming what is called an "interrmetallic alloy". The intermetallic alloy forms where the space between the parts was before the soldering was perforrmed. Without the formation of the intermetalic alloy, a true solder connection has not been created; what would exist would be "encapsulation" or simple "adhesion", but not a solder connection. This type of metal-to-metal connection is mechanically weak when comaperd to a solder joint, and will not provide the long term reliability and low electrical resistance that a true solder joint will provide.Soldering is a process whereby two or more metal parts (wires, component leads, pipes, etc.) are joined by the melting of a metal between them. The melting metal is known as solder. Traditionally, it was usually composed of an alloy of primarily tin and lead, but due to current environmental regulations, the use of lead in solder is becoming rare. In common useage, the phrases "solder joint" and "solder connection" mean the same thing (see below), and are used interchangeably. The word "connection" by itself can refer to either a "solder connection" or to the metal parts before they have been soldered. Confused? It's gets easier when you look at how the word or phrase is used in a sentence... as follows. The soldering process requires the heating of the parts of the connection to "wetting" temperature, the temperature at which the solder will chemicaly alloy with the metal parts being soldered. This temperature is dependant upon the alloy of solder that is being used; with " traditional" alloys, it is approximately 500 degrees F. Current no-lead solders require considerably higher wetting temperatures. In either case, if "wetting" temperature is not reached, when the solder is applied to the connection, it will melt and flow onto the metal parts, but will not alloy with them, thereby causing a "cold solder joint". By the way, cold solder joints are NOT usually dull and grainey. Dull and grainey solder joints are overheated. Cold solder joints appear uneven and lumpy, and lay on the surface of the connection like water on a waxed car hood - the solder does not flow out smoothly. Depending on the application, the heat required to make the solder connection can be provided by a soldering iron, a solder gun, a torch, or a hot-air gun. Other methods exist, but are usually used only in automated processes. When a solder connection has been made properly, the connection is solid metal; there is no barrier or space between the parts of the connection. Essentially, the solder has blended with the parts of the connection, forming what is called an "interrmetallic alloy". The intermetallic alloy forms where the space between the parts was before the soldering was perforrmed. Without the formation of the intermetalic alloy, a true solder connection has not been created; what would exist would be "encapsulation" or simple "adhesion", but not a solder connection. This type of metal-to-metal connection is mechanically weak when comaperd to a solder joint, and will not provide the long term reliability and low electrical resistance that a true solder joint will provide.
