home Products Partners Dealers Articles Vacancies Contacts Products >> Solders and fluxes Refrigerants (freons, freons) Soldering equipment Copper pipes and fittings Compressors Heat exchange equipment Oils and greases Solders and fluxes Solders, solid Solders soft Fluxes Accessories Chemical products Solders and fluxes Solid solders (Germany) Fluxes (Germany) Soft solders (Germany) Accessories Download table of solders and fluxes.xls Solder - a metal or alloy used in soldering to join workpieces and having a melting point lower than the metals to be joined. They use alloys based on tin, lead, cadmium, copper, nickel, etc. Soldering is carried out either in order to create a mechanically strong (sometimes tight) seam, or to obtain electrical contact with a low contact resistance. When soldering, the joints and the solder are heated. Since the solder has a melting point significantly lower than the metal (or metals) being joined, it melts while the base metal remains solid. At the interface between the molten solder and solid metal, various physical and chemical processes take place. Solder wets the metal, spreads over it and fills the gaps between the parts to be joined. In this case, the components of the solder diffuse into the base metal, the base metal dissolves in the solder, as a result of which an intermediate layer is formed, which, after solidification, connects the parts into one whole. The solder is selected taking into account the physicochemical properties of the metals to be joined, the required mechanical strength of the joint, its corrosion resistance and cost. When soldering live parts, the specific conductivity of the solder must be taken into account. Flux (soldering) - substances (usually a mixture) of organic and inorganic origin, designed to remove oxides from the surface for soldering, reduce surface tension, improve the spreading of liquid solder and / or protect from the environment. Depending on the technology, the flux can be used as a liquid, paste or powder. There are also solder pastes that contain solder particles along with flux, sometimes the solder tube contains a filler flux inside. Material taken from ru.wikipedia.org. Products >> Solders and fluxes Copyright © 2010 ::: RADOIL • Made by NatanaGroup

home Products Partners Dealers Articles Vacancies Contacts Dear Applicants! We are glad to welcome you to our website and thank you for your interest in our Company. At the moment we are not recruiting, but if you send us your resume to the mailbox info@radoil.ru we will call you back when you open a Vacancy. Copyright © 2010 ::: RADOIL • Made by NatanaGroup