he rang me up this morning telling me he has heard you cant use solder joints under a fire (place). Cost effective way to rebuild a zone manifold without ... This should allow some of the heat to dissipate, and reduce the chances of overheating the joints. Itâs a metal alloy, or mix of metals. Use of a soldering gun is not recommended for soldering Vicor modules. on old pipes and I can tell you that re-soldering and old joint is a 50/50 crap shoot. Answer (1 of 2): Melt the old solder with a torch; while the solder is molten wipe the old solder off of the pipe with a cotton rag. soldering close to existing solder joints | DIYnot Forums Solder is a filler metal that goes into the joint between two pieces of pipe. Once the joint has been disconnected, youâll be left with a layer of solder on the internal and external surfaces. Solder is a filler metal that goes into the joint between two pieces of pipe. Once the metal is very hot, a small rod of solderâlead-free if these pipes will carry drinking waterâis touched to the seam. Gently touch the tip of a preheated soldering iron to the solder bead or joint that you need to remove; keep the soldering iron in place until the solder begins to flow. If a joint is proving particularly stubborn and reaching the required standard is proving difficult, it is sometimes advisable to start again, i.e. which means the heat was enough for the solder to penetrate the joint enough. When the temperature is just right, run the solder stick around the tube at the end of the fitting and the solder will be sucked by capillary Insert expansion end of cable into existing copper or plastic line. How to CORRECTLY Solder a Copper Pipe: Hi in this article Iâll be thoroughly explaining how to solder copper pipe to get a nice leak-free joint. Open the water valve slowly and check the joint for leaks. If youâre unfamiliar with soldering, youâll be able to solder any diameter pipe after this video with ease and peace of mind. Redoing any old joint, the key is getting the old solder off it pipe, (as described above) and cleaning the solder out of the fitting. Move the flame away from the joint and feed about 1/2 in. Don't forget to wipe excess solder off the joint before it cools using a damp rag, nothings worse than an ugly joint (except maybe a leaky joint). ... pressure. 19%. Solder is a metal alloy used to create strong permanent bonds; such as copper joining in circuit boards and copper pipe joints. 10. Let the solder heat a short while longer (1 sec or so) and then push the release. Yes, the heat from soldering will adversely affect the joint compound you use on the threads no matter what joint compound you use. Location: Leicester. Leaded solders are available with lower flux percentages as low as 1% wt/wt; this low flux volume will not work well with lead-free. Gently touch the tip of a preheated solderingiron to the solder bead or joint that you need toremove; keep the soldering iron in place until thesolder begins to flow. If you use a torch that close to the hull, PLEASE have a fire extinguisher handy. Join the worldâs oldest start-up and turn up the volume on your career We are looking for a Soldering Operator to join our Systems Integration department at our bright and open offices in Ballerup. Piping or tubing is usually inserted into fittings to make connections. The only caution is that if you heat too long, the rag could ignite. (The solder ball will make for a much better ⦠When brazing near an existing ProPress fitting, the installer must remain at least nine tube diameters away from the connection. Lifted pads. Once the solder begins to melt you are getting close. Soldering near plastic fittings. Super Handyman. Put the tip on the joint then add LOTS of extra solder, ball that thing up really huge. Have everything ready to solder before you close the plug. When I solder close joints - or even multiple sides of the same fitting, I tie a wet rag around one end and do one side at a time. An old fashioned soldering gun would do the job nicely and quickly . These liquid or paste fluxes remove residues that can prevent solder from adhering and help prevent surface oxidation that can weaken solder joints. Youâll want to heat the wire and lug enough that a nice, shiny solder joint secures the wire and pot. Clean and clamp the parts to be soldered. #7. There is evidence that soldering was employed as early as 5,000 years ago in Mesopotamia. The solder will flow into all areas of a properly cleaned and fluxed joint. Itâs a metal alloy, or mix of metals. Figure 1 â The solder joint on the left exhibits graping while the one on the right has no graping. Unable to desolder through hole pins. I am having severe problems properly getting a good solder on the joint. Next, you'll need to measure up for the replacement board. It should melt immediately and get sucked into the joint.. Consequently, can you Resolder a joint? It is not recommended that Maxi/Mini/Micro If the joint leaks, shut off the ⦠Soldering brass valves to copper plumbing pipes is easy if you do it right the first time, but it can be troublesome if you have to redo it. I'm afraid that since it is so close to the gas pipe that the gas pipe may also heat up. Do not be afraid to touch the joint with the solder sucker. Typical flux distribution in a solder wire, the density of the flux is close to 1 g/cc; therefore the volume is more obvious in the cross-section. If you are really concerned about working with flame, there are electric tools that clamp around the joint to ⦠One thing that can work is resistance soldering - a thin insulator between the chain and the hull would be adequate to protect the hull from the heat. Just heat the joint up with your torch, ⦠the fitting and over the tubing about 1" to 2" away from the joint. Dave. Specialist contract assembly company, Allgood Technology Ltd, recently moved to Kokiâs 72M solder wires. copper pipe pin hole leak at soldering joint; Author: kurtdahl (MN) In order to install a new water softener, I had to redirect the existing softener intake and outflow copper pipes. One of the copper pipes was near a joist such that I couldn't get a good view of the solder job without moving the step-stool. Turn on the water shutoff valve and check the joint for leaks. The solder should also be a flux-cored type. But excess solder can puddle inside pipes, restricting water flow, and can form small balls that break loose and damage faucet valves. I work with a corgi guy sometimes. Joined: 1 Feb 2011 Messages: 31 Thanks Received: 1 Location: Hampshire Country: From what i can see from searching, i should be ok to add a tee piece to the pipework, despite its proximity to old solder joints. « Reply #10 on: November 29, 2021, 07:50:09 am ». solder dipped, because its gold was deemed thin enough to avoid excessive gold embrittlement in the solder joint. High purity nitrogen is The joint will "tell" you when it is ready to be soldered. Soldering the wire. Use a tenon saw to cut the section out (remember to make certain your cuts are square, and not to damage nearby boards). Don't want to use compression joints because it will be awkward to get under the floorboards once the bathroom is complete. Apply soldering flux around the whole joint and apply heat with a torch until the old solder melts. The thin layer of solder on the iron provides much of the surface area needed to heat the joint, so the solder you add to the joint flows quickly on contact with it. 27.2 The most common types of brazed joints are which two of the following: (a) butt, (b) corner, (c) edge, (d) lap, and (e) tee? Put the heat resistant cloth behind the soldered joint in an effort to prevent a fire. Hold the lead-free solder opposite to the rosebud flame at a 90-degree angle to the joint seam. Source : www.pinterest.com Always place the soldering iron or gun [â¦] Depending on your situation, working on existing (installed piping) you may be able to insert/push ordinary table bread up into the pipe as far up as possible away from the solder area to block ⦠The heat from the metal melts the solder and draws it ⦠Silver solders' tensile strength typically ranges from 40,000-70,000 pounds per square inch (psi). Adding silver to a copper brazing alloy will result in a lower melting point and higher fluidity. The fluidity helps the molten metal to penetrate the gap better, creating a smooth, sealed joint. If the existing boards aren't a standard size, you might have to cut down a larger board. 3. The 100ppm (99.99%) ROL nitrogen feed results in a 30,000ppm (97%) soldering environment, which produced high quality solder joint with dramatic dross reductions. Because all of these joints are really close together, you will probably have to redo them all. Wet rags are good heat sinks. Itâs tempting to melt a few inches of solder into a joint as extra insurance against leaking. IF you are trying to solder next to an old joint, your best bet is to stay a few inches away from it and put a cold wet rag on the old joint while you solder your new one. Ready to fit a towel radiator but will have to alter the pipework. This reduces friction and play, which in turn increases your carâs efficiency. Soldering flux is a cleaning agent that prepares surfaces for soldering or brazing to improve electrical contact and form a stable joint. 4. Discussion in 'Plumbers' Talk' started by agvhartley, Nov 29, 2011. agvhartley New Member. If two plates are placed in contact (a close square butt joint) they can be welded with full penetration by one run of weld metal deposited by a manual welding process from each side provided that the plate thickness does not exceed approximately 8 mm (Figure 16.72).However, plate above 6 mm thickness is ⦠This will keep you from depositing an excess of solder to the joint. That needs to hold for 24 hours at a minimum. 2. When sweat soldering around wooden framing members, you must always be on the lookout for a fire. a proper solder joint should be smooth flowing in appearance. This will help you make a closer match in color of the solder joint and if you intend to oxidize the joint to match an existing patina the metals will oxidize closer in color. Don't forget to wipe excess solder off the joint before it cools using a damp rag, nothings worse than an ugly joint (except maybe a leaky joint). Now gently touch the solder-covered probe to the join of the chain link and apply heat to the soldering probe, not directly at the join. The joint is about 3 inches away from an existing gas pipe. Capillary action will take care of the rest. This could result in a cold solder joint, a void in the barrel, or a cracked joint. STEP 7: Touch solder to the pipe joint and let it melt around the seam. Answer (1 of 8): Yes, I do this all the time. (Source: Kitronik) A lifted pad is a solder pad that has become detached from the surface of the PCB possibly due to excessive force on an existing joint or excess heat. If circumstances do not permit that the soldered joint be done first, it is the installerâs responsibility to protect the integrity of the o-ring in the press fitting. 10. Retired, Jul 18, 2006. Dry the outside of the elbow and sand (120-grit paper or cloth) around the leaking joint to remove all surface corrosion. conditions used to produce an acceptable test solder joint and the results of the tests performed on the solder joint to qualify the solderer For information regarding CDAâs soldering procedures, contact a CDA regional manager through Copper Development Association Inc., 260 Madison Avenue, New York, NY 10016, or phone (212) 251-7200. In the photo above Iâve placed the tip of the soldering iron so that itâs touching both pieces of brass rod and as close to the joint as possible. Leaving the soldering iron inplace, bring the tip of your solder pump very close to themelted solder , so that the two are almosttouching. Soldering isn't hard, just thoroughly clean both surfaces even if it is shiny new pipe, flux both surfaces, heat the heaviest part of the joint, touch the solder to the side of the joint furthest from the heat until it is hot enough to melt it, but don't hold it in the torch between tests. Once this area is hot enough the end of the solder wire just needs to be touched into the joint and a little of it should instantly melt. Also, numerous good and bad joint pics. 3. At a minimum you need to heat up the leaking joints and pull them apart, and then re-solder them. Close. Seicaâs solution for automating the selective soldering process is the Firefly, the most complete, high-performance laser-based selective soldering system currently available. Youâre going to spend a decent amount in tools if you donât have them already, you need a blowtorch, solder, flux, 22mm pipe cutter, 15mm pipe cutter, de-buring tool to use on the inside of the old cut pipe (reduces noise) you will need 22mm ⦠CUSTOMER SERVICE: Change of address (except Japan): 14700 Citicorp Drive, Bldg. After soldering, a solder joint crack was evident at the location of the pin, as shown in Figure 2. Do not heat the solder, let the joint melt the solder. Soldering pipes (called sweating) is the standard way to join two or more pieces of regular copper pipe together. The real problem is getting the old fitting cleaned out well enough to get the joint reassembled. 9. I have fixed 1000âs of copper leaks. In fact, a proper solder joint is less likely to leak than the rest of the copper pipe, which can develop pinhole leaks do to chemical erosion. This RARELY happens, though - but keep a bucket of h2o on hand J.I.C. 3. That said, the soldering iron is to electronics as the wing is to the airplane â you wonât get very far without it. After you put the wire in a hole, heat the junction of the wire and hole, until the solder on the wire and hole melt (should take no more than 2 seconds). Solder one joint, then move to a joint further away, then back to a joint near the first, etc. Soldering and Use about 1/2 in. It is a good idea to check all solder joints with an ohmmeter after they are cooled. Edited January 4, 2009 by Vodkaman Quickly add the solder all the way around the fitting. So, when I go to heat the terminal end to solder to it, it would seem to me that the existing solder at the coil wire joint might melt. False. Exposure to dirt and moisture is the main cause of CV joint failure. Wave Soldering vs. Reflow Soldering. That way the heat will travel down the soldering probe enough to re-melt the solder, helping it flow through the join. The Latex-ite Pli-Stix 30 ft. Driveway Crack and Joint Filler - Medium Black is a contractor-grade thermo-plastic rubber that's designed for use with a heat gun or propane torch. Figure 2. Before proceeding to soldering flux called paste is applied to pipes and fittings to prevent them from oxidation from flame. The D550 will do 325 watts , plenty of heat for a solder joint . Pennsylvania. Related: Tips to Consider Before Buying a New Soldering Iron. The name âCV jointâ refers to constant velocity. It helps to ensure that thereâs enough spacing between pads that require soldering. Be mindful that the clip may get quite hot, so donât forget to let it cool before you touch it. Soldered Joint in Pipe. Best to either solder direct to the valve body (take out the guts first) or use unions or first solder stubs to the threaded adapters first to move the next-to-be-soldered joints further away from the threaded adapters. How close to an existing joint can I solder? This wonât allow you to slide the connection back together when using one ⦠After thinking it over for 10 minutes, I recovered the joint in flux, grabbed a pair of vise grips, and reheated the joint 'till I could move it in place. Soldering used to be done with lead alloys. Set up your Helping Hands, placing at least one of the alligator clips between your joint and the winding. Archived [HELP] Overheated soldering joint, can't get a good solder, always "bubbly" or solder won't stick! There are many different methods and tools you can use to desolder, which can make things a bit confusing. Posts: 1,645. Step 3 - Begin Melting the Solder. 3.2 Cold Solder Joints. CarlG. In this video, i'll go through all the steps on how to properly solder a "vertical" pipe.Become a member here and get cool perks! Fraser Technologies, supplier of Koki solder products, explains how the switch makes soldering much quicker and cleaner, and improves the longevity of soldering iron tips. When it comes to repairing electronics, desoldering is an important skill to learn. Soldering used to be done with lead alloys. Make certain expansion seal is at least 6" from solder joint. If the joint measures any more than a few tenths of an ohm, then it may be a good idea to re-solder it. As you can see, the terminals are in the shape of an "L", the speaker coil wires are soldered to the terminal, and where I need to solder now is VERY close to where the coil wires are soldered, barely a 1/4" away. Repeat until only a thin coating remains (generally 2 wipes will do it). for 3/4-in. The recipe for soldering success calls for two parts prep work and one part science. Seicaâs solution for automating the selective soldering process is the Firefly, the most complete, high-performance laser-based selective soldering system currently available. The Journal of Prosthetic Dentistry is the leading professional journal devoted exclusively to prosthetic and restorative dentistry.The Journal is the official publication for 24 leading U.S. international prosthodontic organizations. It is a permanent, soft-bonding, self-leveling seal for concrete, asphalt, and expansion joints that's 100% watertight and traffic-ready in 20 minutes. If the joint measures any more than a few tenths of an ohm, then it may be a good idea to re-solder it. It would be better practice to solder elbow and Tee at the same time ,however wrapping a wet cloth around the existing elbow would allow you to comfortably solder a Tee as close as 15 mm , possibly a bit nearer if need be.Needs a degree of skill and a good torch ,and directing the heat very carefully. Soldering (AmE: / Ë s É d Ér ɪ Å /, BrE: / Ë s oÊ l d Ér ɪ Å /) is a process in which two or more items are joined together by melting and putting a filler metal into the joint, the filler metal having a lower melting point than the adjoining metal. Solder spheres near the outside of the joint do not fully coalesce into the main bulk of the solder ... effect can be difficult to record and quantify using existing instruments such as microscopes or cameras. Use the proper iron or temperature. of solder into the joint. Soldering, pronounced âsoddering,â or âsaw-ter-ingâ is a way of joining pipe using solder. The technique I normally use for gas piping is to solder up all new pipes and make the appropriate connection to the appliance. Leaks hiss! Your sooner or later going to have to repair a wire or connect prewired devices to existing wiring. Currently the return pipe from the existing rad is joined onto a 22mm pipe back to the boiler. After tinning, hold the tinned wire to the rail and just touch the hot soldering iron to the wire, the solder quickly melts and flows and you donât have to heat up âeverythingâ. In the preceding chapters, we defined cold solder joints as being formed due to inadequate heating of the soldering material. If you do need to use a little additional solder, use the very thin kind (about 2 mm diam, rosin core). However, if the solder is not flowing, apply more heat to the joint area. pipe. The solder should be drawn up into the solder sucker. It would be very convenient to screw together these threaded connections before soldering. I think he meant that he added flux to an existing joint and reflowed the joint without adding more solder wire, hence the need for pre-fluxing. A solder joint forms a strong, watertight seal that will last for decades or longer when done properly. Like 4mm wide. I would probably use 100 to 140 watts and maybe a dash of rosin flux to solder what you did , just a suggestion . Add new solder until a ⦠The job of a CV joint is to transfer a constant speed of torque (rotational power) to the wheels via the driveshaft and to support up and down suspension motion. The metal on either side of the joint isnât melted like in welding, but the solder is. Please let us know about existing external links which you believe are inappropriate. Now to connect the wire to the proper lug. This is so the clip will act as a âheat sink,â absorbing the heat from the soldering iron instead of letting it flow into the winding. How to solder through-hole components on a PCB starts by placing the part in its hole. Bend the leads of the part so that it stays in its place. Put the tip of the iron on the pad so that it heats both the lead of the part and the pad of the circuit board. Heat them for a second or so before you apply solder. There are a few places where I need to use a threaded connection, such as at the spirovent air eliminator and the pump flanges. This section discusses fittings primarily used in ⦠3, Hagerstown, MD 21742; phone 800-638-3030; fax 301-223-2400. I'd advise getting some 60/40 or 63/37 alloy, multicore or similar. A solder joint is one of the best ways to do this and adding heat shrink to protect and insulate the splice has been the best method and next being a mechanical splice which is the next best thing. A lot of people find it difficult to identify something. Soldering is the process of using a filler material (solder) to join pieces of metal together. I can see needing to form the chains in place, but surely you can remove them to do the soldering. Provided the parts came apart easily, this is often more reliable than using new components. These liquid or paste fluxes remove residues that can prevent solder from adhering and help prevent surface oxidation that can weaken solder joints. Soldering, pronounced âsoddering,â or âsaw-ter-ingâ is a way of joining pipe using solder. But since it is air, not water, re-soldering is a lot easier. It took a lot of force to turn it (I could hear a "pop" when the existing solder released it), and then I added a bunch more solder. Now I'm trying to replace some capacitors on an old Asus motherboard, and I just cannot get the solder to budge. Double-check joints. remove all, or as much solder as possible from the joint, then re-flux and re-solder using a flux-cored solder wire. Next, use a damp rag to quickly wipe off any excess solder from the joint. It is a good idea to check all solder joints with an ohmmeter after they are cooled. Double-check joints. There are a couple of key things to keep in mind when splicing wires via soldering: how to identify a solid solder joint, and how to go about making one. If you are doing a remodel, locating a ball valve on the existing lines isolates the new work and minimizes the problem of a bad joint full of water. Soldering is also similar to brazing but the only difference is in case of soldering the filler metal melts at below 840 o C. Soldering also used to joint copper and copper alloy pipes. And adjust it to the joint with the solder into a joint being formed to! Has been reduced by 50 %, bridging may occur if two pads are too close to re-melt the is. The location of the fitting to the pipe ( Image 2 ).Heat the fitting ' tensile strength ranges! And reduce the chances of overheating the joints onto a 22mm pipe back the... Please let us know about existing external links which you believe are inappropriate to dirt and is... 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Of metals are soldered electrical connections code-compliant too close travel down the soldering probe enough to get under floorboards... 800-638-3030 ; fax 301-223-2400 some of the heat resistant cloth behind the soldered in... Doing my corgi at the location of the heat was enough for replacement! And fluxed joint will last for decades or longer when done properly some of the joint reassembled tensile strength ranges... Resoldering copper < /a > Unable to desolder, which in turn increases your carâs efficiency result... And moisture is the main cause of CV joint failure to existing solder from adhering and help prevent surface that..., not water, re-soldering is a good solder, helping it flow through the join too solder. To existing solder joints under a fire will result in a cold solder joints all, or mix metals... It stays in its hole remove all existing solder joints it cool before you close the plug, shiny joint... 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Need to measure up for the solder joint forms a strong, watertight seal that will last for or! A 22mm pipe back to the boiler Unjoining, and reduce the of! The pipework them apart, and reduce the chances of overheating the.... > Unable to desolder, which in turn increases your carâs efficiency and help prevent surface that! Internal and external surfaces emery cloth to clean the outside of the soldering might have to cut down a board. Apart easily, this is often more reliable than using new components cracked joint be supplied in two types. Hole pins can see needing to form the chains in place, but the.! And quench, pickle and rinse your work > 20 way around the joint... It flow through the join immediately and get sucked into the joint area happens! New solder until a ⦠< a href= '' https: //www.cableorganizer.com/learning-center/articles/how-to-remove-solder.php '' soldering! To heat the wire and lug enough that a nice, shiny solder secures! Can be between.032â and.062â wire to the hottest flame possible pipe may heat! Answers to questions regarding its content dental materials, and reduce the chances of overheating the joints with! So before you touch it check the joint for leaks the cored solder until it flows into the joint.... Joints with an ohmmeter after they are cooled minimum you need to heat solder! Sucked into the joint is about 3 inches away from an existing gas pipe may also heat up an... Can also be a flux-cored type Techniques and equipment Buying a new soldering iron pounds per inch... Reply # 10 on: November 29, 2021, 07:50:09 am » joint! The floorboards once the joint for leaks this video with ease and peace of mind gap better creating... Bridging may occur if two pads are too close soldering joint, then it be! Fitting ( Image 1 ) would lead to a short while longer ( 1 sec or so and... Plus, bridging may occur if two pads are too close allow some of the resistant... To re-melt the solder, and reduce the chances of overheating the joints reduced... You believe are inappropriate? t=9698 '' > soldering, Unjoining, and the! With ease and peace of mind for leaks Home... < /a > Donât feed too much solder a. It will be made 6 '' from solder joint forms a strong watertight... Joint with the gas pipe that the clip may get quite hot, so Donât forget to it. About 1/2 in it flow through the join for the solder into.... Proper solder joint enough that a nice, shiny solder joint forms a strong watertight! Then re-flux and re-solder using a flux-cored type inches away from the joint, which in... Your work floorboards once the joint remove the pick from the fittings you are getting close American. To questions regarding its content should be drawn up into the joint > How to solder you. In the barrel, or a cracked joint soldering < /a > How to what., sealed joint should also be a good solder on the lookout for a solder joint up into joint. //Modelshipworld.Com/Topic/12509-Soldering-Dangerously-Close-To-The-Hull/ '' > soldering < /a > clean and clamp the parts came apart easily, this is often reliable! Quite hot, so Donât forget to let it cool before you touch it trying! 100 to 140 watts and maybe a dash of rosin flux to solder before you close the plug or much... The floorboards once the solder will melt like butter pad and pin prior to solder... Maybe a dash of rosin flux to the pipe where the connection will be made smooth in...