SELECTION: Select the proper color and temper needed for the job. As a rule, the harder (or the highest temperature) the solder the least seam will appear. When soldering in multiple joints, solder the heaviest gauges first with the harder solder. Continue the procedure with medium and then soft, and if necessary with extra soft. Always select a solder whose liquidus is at least 100ºF below the materials melting temperature. If the solders liquidus and materials melt temperatures are too close, you will damage and melt the pieces being soldered. Avoid this by using our easy to use temperature charts in this section for both the solder and the precious metal.
FITTING & CLEANING: Make sure that you join your pieces with the closest fit possible. The closer the fit the better the finish. File off any burrs or inconsistencies. After fitting, clean all areas near the joint. Grease, oil marks (body oils as well) and polishing compound can prevent proper solder flow. A good idea would be to use an ultrasonic cleaner, followed by a cleaning with denatured alcohol or pickling compound. The surface will now be clean, and allow the solder to flow.
FLUXING: Apply Ross Metals Bluflux or Freflux evenly to the clean joint surfaces and to the solder, either with a brush or by dripping parts into the flux. Heating the flux will dissolve the base metal oxides, which will allow for better flow. You should also fire-coat the entire piece or parts with the flux, (contains boric acid) with a light flame to protect the metal from oxidation during soldering.
SOLDERING: Using a soft flame, heat the area to be soldered and the surrounding metal. Increase the flame and carefully heat the joint and then the solder. Let the heat of the joint draw the solder. Solder will flow towards the heat. Continuing heating, concentrating mostly on the joint with occasional heat on the solder until flow occurs. Solder flow can be controlled where you don’t want it by using a graphite pencil to mark those areas.
AFTER SOLDERING: Quench hot ring in a sodium bisulfate solution (pickle) to remove any surface oxidation that may have been caused during heating. The pickle solution should be heated to approximately 180 ºF. White gold should not be quenched immediately. Allow it to cool down for 30-60 seconds before quenching, or brittleness will occur. This also applies to items that have stones set. Check for their resilience before soldering and quenching. Finally, remove all remaining residue with warm water. If fire scales is evident after using the pickle solution, then try a sulfuric (10%) or a phosphoric (15%) acid solution. This might work effectively in many cases.
CAUTION: Cold-working or stretching a ring for sizing can cause cracking. The malleability of karat golds vary and is limited. This ductility changes from karat to color to alloy. If you must cold-work, you can eliminate this cracking by annealing (see wire and plate technical information.) Annealing will relieve the internal stresses of the metal and make the piece more resistant to cracking and stress corrosion.
Brazing may produce fumes and gases hazardous to your health. Avoid breathing these fumes and gases. Use adequate ventilation. See American National Standard Z491. “Safety in Welding and Cutting”, published by the American Welding Society.
WARNING: Freflux contains Boric Acid, and Blueflux contains Fluoride. They are both harmful if swallowed. If swallowed, give 1 to 2 glasses of water or milk. Do not induce vomiting. Call the poison control center or a physician. Keep out of reach of children.
WARRENTY CLAUSE: Ross Metals believes that the above data is accurate and reliable. However, they are only recommendations given to you free of charge, and should be employed by you with discretion and risk. Ross Metals assumes no responsibility for difficulties or damages incurred by adhering to this information.
THE ROSS METALS ZOLDER: By the diversity and quantity of the solders we carry, you would think that we specialize in the product. Come to think of it, we do! Our-in-house Metallurgy Department has created that special solder for that special job. You do not need to settle for the wrong color, temper, usage and style.
Use our specifications for any and all applications. Most of our solders come in plate, chop, wire and paste formats. Our color selection includes yellow, white, pink, green, and greenish yellow. Our temper variations are described as easy, medium, hard and some in extra hard and extra soft. Altogether we carry over 200 different variations to choose from at discount prices.
We can also customize solders to meet unique specifications in color, and temper. We can also customize formats, which includes plate and wire thickness and size. As for the many variations of cut (chop) solder available, we can adjust our “Chopper” to give you up to 15 different sizes. See our “cut solder chart” in this selection for that perfect size needed. We are always eager and available t meet and explore new combinations to help you with all your soldering requirements.
All of our Solders, stock or custom, are guaranteed to be cadmium-free and the finest the industry has to offer in color, flow and quality.
Take advantage of our quantity discounts listed to save you time and money. They are always in stock and are ready for same day shipping.
SERVICES PROVIDED:
- gold refiners
- gold smelters
- gold assayers
- refiners of scrap gold
- refiners of gold
- refiners of platinum
- refiners of platinum
- refiners of scrap silver
- refiners of silver
- refiners of dental scrap
- jewelry industry refiners
- jewelry industry smelters
- jewelry industry assayers
- dental industry refiners
- precious metal dealer
- smelters of precious metals
- smelters of gold
- smelters of silver
- smelters of platinum
- assayers of platinum
- assayers of precious metals
- assayers of gold
- assayers of silver
- assayers of platinum
- diamond district refiners
- gold-filled scrap
- silver refining
- gold refining
- platinum refining
- silver smelters
- gold smelters
- platinum smelters
- palladium refiners
- precious metal refining
- gold recycling
- silver recycling
- platinum recycling
- new york smelters
- new york refiners
- new york assayers
- new york gold buyers
- new york silver buyers
- new york platinum buyers
- new york gold refiners
- new york silver refiners
- new york platinum refiners
- city refiners
- city smelters
- city assayers
- diamond district smelters
- diamond district assayers
- silver scrap
- sterling silver scrap
- gold waste
- platinum waste
- sink sludges
- polishing dust
- bench dust
- gold dust
- platinum dust
- floor sweeps
- bench sweeps
- polishing sweeps
- precious metal waste
- jewelry bench sweeps
- jewelry polishing sweeps
- polishing waste
- gold grindings
- platinum grindings
- silver grindings
- gold shavings
- platinum shavings
- silver shavings
- precious metal shavings
- precious metal grindings
- jewelry waste
- jewelry clippings
- gold clippings
- bench clippings
- dental gold
- dental gold scrap
- dental waste
- dental palladium
- dental platinum
- scrap platinum
- scrap iridium
- scrap rhodium
- cash for dental gold
PRODUCTS SOLD:
- 6k gold chop solder
- 8k gold chop solder
- 10k gold chop solder
- 12k gold chop solder
- 14k gold chop solder
- 18k gold chop solder
- sterling silver chop solder
- 6k gold plate solder
- 8k gold plate solder
- 10k gold plate solder
- 12k gold plate solder
- 14k gold plate solder
- 18k gold plate solder
- 22k gold plate solder
- sterling silver plate solder
- 6k gold wire solder
- 10k gold wire solder
- 12k gold wire solder
- 14k gold wire solder
- 18k gold wire solder
- sterling silver wire solder
- 6k gold paste solder
- 10k gold paste solder
- 14k gold paste solder
- 18k gold paste solder
- sterling silver paste solder
