24HR Residential Pipe Welding Friern Barne

Thermite welding

Exothermic welding, also known as exothermic bonding, thermite welding (TW), and thermit welding, is a welding process for joining two electrical conductors, that employs superheated copper alloy to permanently join the conductors. The process employs an exothermic reaction of a copper thermite composition to heat the copper, and requires no external source of heat or current. The chemical reaction that produces the heat is an aluminothermic reaction between aluminium powder and a metal oxide.

The reaction reaches very high temperatures, depending on the metal oxide used. The reactants are usually supplied in the form of powders, with the reaction triggered using a spark from a flint lighter. The activation energy for this reaction is very high however, and initiation requires either the use of a "booster" material such as powdered magnesium metal or a very hot flame source. The aluminium oxide slag that it produces is discarded.

When welding copper conductors, the process employs a semi-permanent graphite crucible mould, in which the molten copper, produced by the reaction, flows through the mould and over and around the conductors to be welded, forming an electrically conductive weld between them. When the copper cools, the mould is either broken off or left in place.Alternatively, hand-held graphite crucibles can be used. The advantages of these crucibles include portability, lower cost (because they can be reused), and flexibility, especially in field applications.

The weld formed has higher mechanical strength than other forms of weld, and excellent corrosion resistance. It is also highly stable when subject to repeated short-circuit pulses, and does not suffer from increased electrical resistance over the lifetime of the installation. However, the process is costly relative to other welding processes, requires a supply of replaceable moulds, suffers from a lack of repeatability, and can be impeded by wet conditions or bad weather (when performed outdoors).

Exothermic welding is usually used for welding copper conductors but is suitable for welding a wide range of metals, including stainless steelcast iron, common steelbrassbronze, and Monel. It is especially useful for joining dissimilar metals.

 40225

Our Pipe Experts And Multi-Trades Specialist And Our Team Are More Than Happy To Assist All Kinds Of Commercial And Residential Clients.

  • Landlords, tenants                                                                * Overseas clients in all countries
  • Commercial – domestic Landlord or tenant                     * Clients from Surgeries, clinics, hospitals
  • Clients in cinemas or theatres                                             * Hotel Clints
  • Restaurant Clients                                                                 * Clients in Pub - Cafe
  • Office Clients                                                                          * Supermarket Clients
  • Shopping mall Clients                                                           * Clients in Commercial Buildings
  • Clients in Colleges, universities or schools                       * Clients in Hospital
  • Clients at Clinic,Surgery                                                       * Clients in the Markets
  • Clients who work in all commercial properties               * Clients in the showrooms
  • Clients in the showroom                                                      * Senior Citizen Clients
  • Charity clients                                                                        * Charity Clients
  • Letting agent & Property maintenance customers         * Other Contractors and Trades Clients
  • Customers in museum                                                         * Customers in building sites      
  • Anyone in small, medium,large property                         * Clents who live on the boats
  • Clients who are in Mobile Caravans                                  * Production Factory clients 
  • Clients who are at Airports                                                 * Clients in Factory  

24/7 Lead pipe replacement Eastwood Road, Haringey

gas safe thames water enginerer 

Available 7 days per week
24 Hours Per Day

07801295368
Request a Quote

Muswell Avenue, Muswell Avenue, Nelson Mandela Close, Pages Hill, Pages Lane, St Regis Close, Thirlstane Works, Windermere Road, Albion Avenue, N10  Alma Road, Audley Close, Bedford Close, Cambridge Gardens, Colney Hatch Lane, Cromwell Road, Crown Road, George Crescent, Halliwick Road, Hampden Road, Hopkins Close, Ireton Close, Martins Walk, Newton Avenue, Pembroke Mews, N10  Pembroke Road, Pembroke Road, Roman Road, Stanley Road, Sydney Road, The Vale, Trott Road, Wetherill Road, Barrenger Road, Coldfall Avenue, N10  Everington Road, Hill Road, Marriot Road, Osier Crescent, Steeds Road, Barrenger Road, Coldfall Avenue, Coppetts Wood Hospital, N10Everington Road, Greenham Road, Hill Road, Marriot Road, Nelson Mandela Close, Osier Crescent, Steeds Road, Barnard Hill, N10  Coppetts Road, Goodwyns Vale, Greenham Road, Muswell Avenue, Muswell Avenue, Nelson Mandela Close, Pages Hill, St Regis Close, Thirlstane Works, Windermere Road, Burlington Road, N10  Coppetts Road, Creighton Avenue, Creighton Avenue, Eastwood Road, Kings Avenue, Nelson Mandela Close, Pages Lane, Ringwood Avenue, N2  Spring Lane, N10  Tetherdown, Athenaeum Place, Avenue Mews, Colney Hatch Lane, Coniston Road, Dukes Mews, Elms Avenue, Fortis Green Road, Kings Avenue, Meadow Drive, Methuen Park, Muswell Avenue, Muswell Hill Broadway, N10  Muswell Hill Broadway, Muswell Road, Pages Lane, Princes Avenue, Princes Lane, Queens Avenue, Queens Avenue, Queens Lane, Summerland Gardens, Wellfield Avenue, Woodberry Crescent, Alexandra Gardens,Twickenham, Uxbridge, Kingston on Thames,TW1, TW2, TW2, TW3, TW4, TW5, TW6, TW7, TW8, TW9, TW10, TW11, TW12, TW13, TW14, TW15, TW16, TW17, TW18, TW19, TW20 Twickenham, Uxbridge UB1, UB2, UB4, UB5, UB6, UB7, UB8, UB9, UB10, UB11, UB18  Kent : TN1, TN2, TN3, TN4, TN5, TN6, TN7, TN8, TN9, TN10, TN11, TN12, TN13, TN14, TN15, TN16, TN17, TN18, TN19, TN20, TN21, TN22, TN23, TN24, TN25, TN26, TN27, TN28, TN29, TN30 Kingston Upon Thames : KT1, KT2, KT3, KT4, KT5, KT6, KT7, KT8, KT9, KT10, KT11, KT12, KT13, KT14, KT15, KT16, KT17, KT18, KT19, KT20, KT21, KT22, KT23, KT24  Heathrow Airport, London City City Airport, Stansted Airport, Gatwick Airport, Luton Airport, Guildford GU1, GU2. GU3,GU4,GU6, GU7, GU8, GU9,GU10, GU11, GU112, GU13, GU14, GU15, GU16,GU17, GU18, GU19, GU20, GU21, GU22, GU23, GU24, GU25, GU26, GU27, GU28, GU29, GU30, GU31, GU32, GU33, GU34, GU35, GU46, GU47, GU51, GU52, GU95,  Hertfordshire : SG1, SG2, SG3, SG4, SG5, SG5, SG7, SG8, SG9, SG10, SG11, SG12, SG13, SG14, SG15, SG16, SG17, S18, SG19, HP1, HP2, HP3, HP4, HP5, HP6, HP7, HP8, HP9, HP10, HP11, HP12, HP13, HP14, HP15, HP16, HP17, HP18, HP19, HP20, HP21, HP22, HP23, HP27 St Albans,: New Southgate, Friern Barnet, Bounds Green, Arnos Grove (part), Enfield, Barnet, Haringey,Bowes Road

WE COVER ALL LONDON BOROUGHS AND SURROUNDING CITIES