Yes, you can braze without flux, but it is not recommended. Flux helps to clean the metals being joined and prevent oxidation.
There are a few ways to make your own flux, but it's important to remember that not all fluxes are created equal. The most important thing to consider when making your own flux is what you'll be using it for. If you need a flux for soldering electronics, for example, you'll want a flux that won't damage delicate components. There are many recipes for flux online, but it's important to do some research to make sure you're using the right one for your needs.
Rosin can be used as a flux, but it is not as effective as other fluxes. Rosin is a natural resin that is derived from pine trees. It is a solid at room temperature and melts when heated. Rosin is used in a variety of applications, including as a flux for soldering. When used as a flux, rosin helps to remove oxides from the surface of metals, which allows for a better connection between the metals. Rosin is less effective than other fluxes, such as acid-based fluxes, but it is non-toxic and
A propane torch can be used for brazing, but it is not the ideal tool for the job. Propane torches produce a lot of heat, which can damage the metal being worked on. Additionally, propane torches can be difficult to control, making it easy to overheat the metal.
4.8/5
$234
I learned that StaySilv was a supposed superior flux from what I read. I finally purchased it and can vouch for how great a flux it is for soldering sterling silver. Not much is required, and the solder flows quickly, easily, and cleanly. It takes some getting used to because it is a very dark brown hue and can be challenging to see through, but once you do, it is simple to observe the stages of heating up and when the solder will flow. In contrast to HandiFlux, which has a slightly crystalline feel, this product has a more creamy texture and doesn't dry up as quickly. I'm so happy I decided to change!
4.6/5
1 pound jar
Begins to melt and dissolve oxides at 600 degrees Fahrenheit
Can be cleaned up with hot water
Great for soldering and pickling
Protects parts up to 1600 degrees Fahrenheit
$234
I've been utilizing this stuff for a long time. But I've never bought it in a jar that weighs a pound. I had never done this before. The prior jars I bought all had tiny top apertures and, of course, weighed less than one pound. I like how much larger the opening is on this. I heartily endorse both the product and the jar.
4.5/5
Has a pleasant odor
Non-corrosive, non-conductive, no-clean
Ideal for all rework, solder, de-solder and reflow applications
Tack flux will not run all over PCB when applied
Tack Flux in 6-2cc Squeeze Tubes (same flux as SMD291)
$234
It functions perfectly, but the Chip Quik Solder Flux "burns" rather quickly. The flux appears to "scoot away" from the heat source and turn brown after being heated for a short period of time. With hot soap and water OR denatured ethanol, it gets extremely sticky and difficult to remove after it turns dark (ethyl alcohol).Revision made in December 2018Since then, I've used this flux more frequently, and I've run into a few issues due to improper usage. The issues I previously highlighted were brought on by my hasty application of heat. The flux works flawlessly, leaves behind brilliant, shining solder joints, and cleans up easily with a more cautious (slower) application of heat (which is not essential because it's a "no clean" flux, but I do it nevertheless).Despite being a component of Chip-"chip Quik's removal technology," this flux also performs amazingly well as a standard solder flux. An SMD part will be held in place by the smallest drop, leaving behind lovely, VERY glossy, and perfectly flowing joints.Using this flux with pin sockets or IC sockets is something to avoid. Because the flux is so good, the springy component of the pins can be soldered together by allowing the solder to flow all the way up into a socket.Hint: You can use a piece of shielding from an audio or coaxial cable, Chip-Kwik flux, and your fingers to quickly create a piece of "solder wick" to scrape away excess solder from a junction. You'll discover that it performs much better than solder wick from a store!
4.4/5
EASE OF USE: Only requires a small amount for preparing 20 lb of lead pot
RELIABLE: Separates bullet alloy in dross and improves the lead consistency to ensure faster, cleaner casting
VERSATILITY: Non-smoking and odor free
$234
Recently, I gave this flux a try for the first time, and I was very impressed. Compared to other fluxes, I'm impressed by how much waste it extracts from the lead. I just remade several Oregon Trail silver alloy bullets, which by the company's standards ought to have been rather clean. I made sure I didn't introduce anything by boiling the lubricant off of them before washing them with a lot of searing hot water and an industrial degreaser. Even so, I only managed to extract roughly half the garbage from lead scrap—a poor-quality flux by my standards. Other Speer bullets that I melted down (all of them older). The 45-70 rounds (which I no longer use) were significantly filthy.I suppose that large manufacturers maintain their lead a little bit soiled to save money. My gun is neat and orderly because it produces attractive bullets.Use about 1/8 teaspoon to 3–4 pounds of lead. Add half, stir, and wait 15–30 seconds for the reaction before skimming. Repeat. You might want to repeat it three to four times for severely soiled lead. It is inefficient and wasteful to introduce a lot of flux all at once. It is entirely up to you how clean you want it to be, but remember that every time you flux, a small amount of excellent lead is also removed. It's wise to quit if you find that you are removing more lead than contaminants.WEARING A RESPIRATOR WITH 3M #60926 CARTRIDGES IS VERY IMPORTANT!In order to focus on producing excellent bullets another day, I like to simply spend a day creating ingots out of whatever lead I have available for recycling (at the present, bullet core rejects from a bullet maker). Great ingot molds may be made from aluminum cans with the tops cut off and the inside sprayed with Frankford Arsenal's bullet mold release. When finished, just peel the metal from the ingot.I have sworn by Lee bullet molds and always will (as well as their Factory Crimp Dies). They cast bullets that don't require sizing with great attention to detail.
4.2/5
Made in USA
Active range 1050°F - 1600°F
1/4lb Jar
$234
I exclusively use this flux when soldering silver. I could never get the solder to stick before doing this. Assuming that flow is flux, I had explored a number of alternative fluxes. Clearly, I was mistaken. For the type of solder and metals you are working with, you must use the appropriate flux. This works well when used with solder that contains a significant amount of sterling silver. To make sure you have suitable items, always read the labels on your silver and flux. The rest is simple practice to learn when the part is hot enough without overheating if you start with really clean metal, generously coat it with flux, and use the correct solder. Solder won't melt if there is not enough heat. If there is too much, it will run off rather than "stick" to the joint. For me, this flux was the deciding factor. I improved from never being able to get the solder to flow into the junction and stick to 99% of the time.
4/5
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This are highly durable
This are easy to use
This is manufactured in United States
$234
I recently helped my father with an HVAC silver soldering project, and this flux worked flawlessly. Only a small amount of flux is required, and as soon as it melts and becomes clear, touch your solder to the fluxed area to see it magically drawn into the seam. This is a substantial amount of solder, enough for several years' worth of soldering projects. Highly recommended for experts and novices like myself!
3.5/5
Can also be used for furnace and automatic flame brazing operations
Made in USA
Formulated specifically for torch brazing aluminum
Contains zinc chloride
Normally used with 4047, 4043, or 1100 brazing filler alloy
$234
Good results I experimented with constructing joints both ways. Flux-made joints flow evenly and have a nice appearance; joints formed without flux bead up and do not flow. Since it is a powder, vertical surfaces won't be affected.It is also hygroscopic (absorbs water). It is simpler to remove the flux if it is allowed to sit in a humid atmosphere (after brazing). After brazing, it is rock solid up until that point.
Borax is commonly used as a flux in soldering and brazing. It lowers the melting point of the metals being joined, which allows them to flow together more easily. Borax also helps to prevent oxidation of the metals during the heating process.
Flux is a material that helps to reduce the surface tension between two materials. This allows them to flow together more easily, which is why it is often used in welding and soldering. Petroleum jelly can be used as a flux, but it is not as effective as some other materials.
Flux is a substance that helps to clean the surface of metals so that they can be soldered together more easily. It can be applied before or after soldering, but it is generally recommended to apply it before. This is because it can be difficult to evenly apply flux after the soldering process has begun.
Most types of braze copper do not require flux, however, it is always best to consult the manufacturer's instructions to be sure. Some types of braze copper are annealed, which means they have been heat-treated to make them softer and more malleable. This annealing process also makes the braze copper more vulnerable to oxidation, so a flux may be needed to protect it.
Brazing is a process where two metals are joined together by melting and flowing a filler metal into the joint. The filler metal has a lower melting point than the base metals being joined, so it can be melted and drawn into the joint without melting the base metals. Flux is used in brazing to clean the surfaces of the metals being joined and prevent oxidation. There are many types of flux, but most are either in powder or paste form. To make a flux for brazing, you will need: -Borax -Zinc chloride
Brazing flux is a material used to clean and protect surfaces during the brazing process. Soldering flux is a material used to clean and protect surfaces during the soldering process. Both materials are available in a variety of formulations to suit different applications.
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