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Brazing Rods
Checkout Ebay Auctions For The Cheapest Prices
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 1/2 pound lenox 15%silver solder brazing rods 14 sticks  US $41.95
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 11 Lincoln Brazing Rods US $20.00
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 47 Flux Coated Brazing Rods + 39 Pot Metal Brazing Rod Lot US $14.50
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 3 LENOX 15% SILVER SOLDER BRAZING ROD US $222.50
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 SILVALOY EXCEL15% SILVER BRAZING RODS ( 28 STICKS .050 X 1/8" ) US $61.00
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 20 - 9" Aluminum Repair Rods HTS-2000 Brazing Low Temp US $22.99
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 10 - 9" Aluminum Repair Rods HTS-2000 Brazing Low Temp US $12.49
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 4.5 Lbs Harris Stay-Silv 15% Silver Brazing Rods US $207.50
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 Harris Stay-Silv 15% Sil-Fos Brazing Rod #61035 - 2 lbs US $140.00
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 15 LF Bronze 3/32 x 36" Brazing Rod - Uncoated 50 lb US $165.00
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 HARRIS BRONZE BRAZING RODS 3/16 x 36" 10lb CHEAP NEW US $85.99
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 3 lbs Engelhard and Harris Brazing Rods Mixed ~BEST DEAL~ US $90.00
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 ALUMALOY: Aluminum REPAIR Welding BRAZING Rods (1 LB) US $29.99
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 Bare Low Fuming Flux Brazing Rods 48492 US $22.99
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 Rod Guard Electrode Canister, 36" for TIG / Brazing rod US $13.25
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 ALUMALOY: Aluminum REPAIR Welding BRAZING Rods (1/4 LB) US $11.99
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 Silver Brazing Rod -FLOW matches 15%-BudgetBraze 1 LB US $78.20
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 5 - 18" Aluminum Repair Brazing Rods HTS 2000 Low Temp US $11.49
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 Brazing Rod 5% US $59.95
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 Brazing Rod 5% US $59.95
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 12 carbon graphite copper electrode rod welding brazing US $22.80
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 2# Harris Stay-silv Brazing Rods 0% braze Two Pounds US $45.00
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 Bernzomatic NS3 12" NKL/SLVR BRAZING ROD US $3.40
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 Marquette Flux Coated Silicon Bronze Brazing Rods 3/32x14 4pk US $4.99
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 Hobart 770206 1/8" Aluminum Brazing Rod US $29.99
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 Brazing Rods, 1 lb. Tube, Lucas Milhaupt, 454g, 15% Ag US $111.68
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Here are some more information for Brazing Rods:
Oxy-Acetylene Welding Equipment
Welding with the use of gas dates back to the middle of 1800's where the mixture of oxygen and hydrogen were used in the making of jewelery.
Today we use a different mixture of oxygen and acetylene which together can produce a flame temperature in excess of 6000 deg f. This type of equipment is not only used for welding, but also to heat materials for bending and straightening, brazing and cutting.
An oxy-acetylene outfit is usually portable, versatile, and less expensive than a electric welding set up, and by using the correct tips, rods and fluxes, almost any metal can be welded, heated or cut. This equipment is ideally suited to the welding of thin sheets, tubes and pipes but not economical for thick section welds.
Arc Welders
Arc welding or stick welding requires a higher skill level and mastery of certain techniques. Best for welding on thicker, rougher metals using a flux coated stick electrode fusing the work pieces together.
To avoid porosity and attain the ideal weld travel speed, it is important to remove excessive scale, rust, moisture, paint, oil and grease from the surface of joints. A variety of electrodes are available for the different types of metal that is to be welded, cast iron, stainless steel etc.
The electrodes need to be replaced as the heat builds up and the stick melts down causing a molten weld puddle on the work piece fusing the work pieces together. The weld must be cleaned when completed due to the flux electrode forming a slag blanket over the weld bead. Using an arc welder is a relatively slow process and is ideal for the more experienced user.
MIG Welding
MIG welding is generally a lot easier than gas or arc welding. A spool of weld wire is constantly driven by a feeding system through the MIG gun as the trigger is pulled, so unlike arc welding there is no need to constantly replace electrodes.
A small amount of practice is required to set up the wire feed speed and also the power. The wire speed needs to be adjusted to suite each power setting, but with a little practice the correct settings are easily achieved.
MIG process (GMAW) requires the use of a shielding gas which reduces spatter and produces very clean welds with no slag blanket. Flux cored MIG welding (FCAW) uses a weld wire with a centre core of flux which eliminates the need for gas shielding and offers easier, portable welding outdoors and on dirtier metals. Both processes of welding are very fast and allows you to weld the thinnest and thickest of metals. The first thing to decide when buying a MIG welder is what you are going to weld, and how often. If you are planning to weld thicker metals, then a welder with higher amps is required, but for thinner metals like car bodywork, any welder with a minimum setting of more than 30 amps would be unusable. Welding for long periods can cause the unit to overheat, so a welder with a fan (turbo welders) would be a big consideration for heavier or industrial use.
Steve Harcourt is the President of DiscountWeld.com [http://www.discountweld.com] where he sells a variety of welding equipment supply [http://www.discountweld.com]. On his website you can purchase equipment and accessories as well as learn more on steel ironwork welding [http://www.discountweld.com/index.php?cPath=22].
Valve installation profiles, valve installation and maintenance guide
SOLDERING AND SILVER BRAZING
¡¡¡¡Analyze the application to determine which valve is best suited for installations, keeping in mind the service for which the valve is recommended. Before installing the correct valve, review the installation instructions to prevent damage to the valve and to assure its maximum efficiency.
1.Cut tube end square. Ream, burr and size.
2. Use sand cloth or steel wire brush to clean both ends to a bright metal finish. Steel wool is notrecommended.
3. Apply flux to outside of tube and inside of solder cup. Surfaces to be joined must be completely covered. Use flux sparingly.
4.Be sure that valve is fully open. Apply heat to tube first. Transfer as much heat as possible through tube into valve. Avoid
prolonged heating of valve itself.
5.Silver Brazing Method: Assemble parts to be brazed. If fluxed parts are allowed to stand, the water in the flux will evaporate, and dried flux is liable to flake off, exposing metal surfaces to oxidation. Assemble joint by inserting tube into socket hard against the stop. The assembly should be firmly supported so that it will remain in alignment during the brazing operation.
¡¡¡¡NOTE: On one-inch and larger valves, it is difficult to bring the whole joint up to temperature at one time. It will frequently be found desirable to use a double-tip torch to maintain the proper temperature over the larger area. A mild pre-heating of the whole socket area is recommended. Apply heat to parts to be joined. The preferred method is by oxy-acetylene flame. Heat tube first, beginning one inch from edge of valve. Sweep flame around tube in short strokes up and down at right angles to run of tube. To avoid burning through tube, the flame should be in continuous motion and not allowed to remain on any one point.
Apply flame to valve at base of socket. Heat uniformly, sweeping flame from valve to tube until flux on valve becomes quiet. Avoid excessive heating of valve.
¡¡¡¡When flux appears liquid and transparent on both tube and valve, start sweeping flame back and forth along axis of joint to maintain heat on parts to be joined, especially toward base of valve socket.
6. Use just enough solder: with wire solder, use 3/4" for a 3/4" valve, etc. If too much solder is used, it may flow past tube stop and clog sealing area. When joint is filled, a continuous run of solder or brazing alloy will be visible.
7. Silver Brazing Method: Apply brazing wire or rod at point where tube enters valve socket. Keep flame away from rod or wire as it is fed into the joint. Move flame back and forth as alloy is drawn into joint. When the proper temperature is reached alloy will flow readily into space between tube outer wall and valve socket. When joint is filled, a continuous rim of brazing alloy will be visible.
8. Remove excess solder with small brush while plastic, leaving a fillet around end of valve as it cools.
SILVER BRAZING¡¡¡¡
¡¡¡¡The strength of a brazed joint does not vary appreciably with the different brazing materials, but depends to a large extent upon the maintenance of proper clearance between the outside of the tube and the valve socket. The interior dimensions of silver brazing valve sockets are machined to the closest tolerances and finished smooth to promote full capillary attraction.
¡¡¡¡NOTE: Care should be observed in cleaning and in removing residues of the cleaning medium. Attempting to braze a contaminated or improperly cleaned surface will result in an unsatisfactory joint. Silver brazing alloys will not flow over or bond to oxides. Oily or greasy surfaces repel fluxes, leaving bare spots which oxidize and result in voids and inclusions.
THREADING
¡¡Grit, dirt or any foreign matter accumulated in the pipe can hinder efficient valve operation and seriously damage vital valve parts. Thoroughly clean pipe internally with air or steam.
¡¡¡¡When threading pipe, gauge pipe threads for size and length to avoid jamming pipe against seat and disc. Thoroughly clean threaded end to remove any harmful steel or iron deposits. For a good joint, use teflon tape or pipe dope. If pipe dope is used, apply sparingly on pipe threads, neveron valve threads. Do not allow any pipe dope into valve body in order to avoid damage to disc and seat.
¡¡¡¡Before installation, check line of flow through valve so that valve will function properly. Close valve completely before installation. Apply wrench to hex next to pipe and guard against possible distortion. After installation of valve, support line; a sagging pipe line can distort valve and cause failure.
FLANGED
¡¡¡¡There are several steps to follow to make sure that a flanged joint will be properly assembled. First, clean the joint carefully. Then loosely assemble the joint by putting in the bottom two or three bolts. Then carefully insert the gasket into place. The bottom bolts will help locate the gasket and hold it in position. Then insert the rest of the bolts into place and tighten all of the bolts evenly-not in rotation, but by the cross-over method to load the bolts evenly and eliminate concentrated stresses. The bolts should be checked for tightness after an appropriate interval of use and retightened if nec .
All rights reserved by FBIC Inc., do remember to show the source (www.fsbic.com) of the news when copying
About the Author
FBIC Inc., a member of Siduona group in flow-control business, has over 15 year experience in manufacturing ball valve, gate valve, globe valve, check check valve, plug valve and butterfly valve in carbon steel, stainless steel Valve.
what is the percentage of good silver brazing rod?
About 50%
Go to www.brazing.com and do your own research.
Crumpton Welding Supplies Provides Welding Consumables at Four Central Florida Locations
Various types of electrodes, rods, wires, fluxes, and gases are used in arc welding to create a bond between the two metal surfaces that are being joined. All these filler metals, whether from a covered electrode, a rod, or a wire are "consumed" during welding and become a part of the finished weld. Crompton Welding Supplies can provide a variety of welding consumables, including brazing rods ...
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