Q:Can I use soldering iron without soldering flux?

I use the 936 crack soldering station, I don't have the flux. Less than 200 pieces, long life, can adjust temperature, but also anti-static.

Q:What is a soldering flux? What does the solvent include?

Flux (flux): a chemical that helps and promotes welding processes and has a protective effect and prevents oxidation reactions in welding processes. Flux can be divided into solid, liquid and gas. The main auxiliary heat conduction, removing the oxide, reduce the surface tension of welding material, welding material removal is surface oil, increase the welding area, prevent oxidation and other aspects, in several aspects of the key role of the two is: "to remove oxides and" to reduce the surface tension of welding material".Organic solvent: one or several mixtures of ketones, alcohols, esters, commonly used with ethanol, propanol and butanol, acetone and toluene; isobutyl ketone; ethyl acetate, butyl acetate and so on. As the liquid component, its main function is to dissolve the solid components of the flux, so as to form a uniform solution to facilitate the flux component welding components uniform coating amount, at the same time it can also clean the dirt and light metal surface oil.

Q:I made a soldering box for myself. The stainless steel had a problem. After that, it lost a lot of soldering flux. I only took some sticky things. Please ask the teachers. What's the problem?Thank you for your answer, I have done an experiment, the general rose in this flux box, the solder has only changed color, not volatile, because previously rose fixed box role

The flux box is used to hold the soldering flux, not to preserve the soldering flux. Your tightness is too bad, of course, the solvent may not be good, volatile too quickly.

Q:How do you clean the solder paste?

The flux belongs to the volatile products, Dongxin Tai solder mixed together to get that with no Tim as is impossible, after adding a small amount of advice

Q:Why solder flux is needed for submerged arc welding?

Used to protect the welding pool from oxidation, and the same role as the electrode coating.

Q:What kind of flux is used in H08A automatic submerged arc welding?

Smelting flux uses HJ431, which is the cheapest solder. If it is required to use sintered flux at higher levels, the impact properties of SJ101. are higher than HJ431.

Q:Must soldering flux be used in soldering test?

If you use tin wire, tin wire solder test, of course, do not add, unless the pad is particularly strong oxidation, or iron and other unconventional pads. Of course, there are about 2% solid flux in the tin wire except the special onesSweet words unless you board itself precoated flux or no flux is not on the tin.SMT surface mount solder furnace, without flux itself is a mixture of spherical powder with solder paste fluxWe can see it in SINOSMT's informationThe main functions of soldering flux are:1. Remove the oxide film on the welded metal surface;2, on the surface of the welding to form a liquid protective film, isolated from high temperature air around, to prevent the metal surface reoxidation3, reduce the surface tension of solder and increase its diffusion ability;4, welding instant, can let melt solder replace, finish welding smoothly.

Q:Is there a shelf life for submerged arc welding flux?

The shelf life of the products of each manufacturer are not the same, 6 months, 12 months, not the same, usually save chemicals are light, in the ventilation, room temperature preservation, in the warranty period had little effect on the product, if you have a shelf life without a seal and no strong light and high temperature can also use. If the product color changes there is not much problem, such as the use of non turbid with precipitation or hierarchical changes, changes because of its basic properties, welding performance and insulation are not guaranteed, after use can guarantee that no bad phenomenon.

Q:What flux should be used in the national standard for nickel plated products?

Using stainless steel flux is OK

Q:How can I use the submerged arc welding flux?

Yes, it does matter. To leave for the weld will be welding slag! If the flaw is detected, it will be over! However, there are recycling! You can contact someone who has recovered! You can sell money!