Induction furnace handbook in english, and including in it advertise ments for the. Channeltype induction holding furnaces otto junker. The coreless induction furnace is a refractory lined vessel with electrical current carrying coils surrounding a. Channel induction furnaces are commonly used for melting lowmeltingpoint alloys andor. The two basic designs of induction furnaces, the core type or channel furnace and the coreless, are certainly. The channeltype induction furnace con sists of a refractory lined furnace body made of steel to which one or several channeltype inductors are flanged for.
This gives virtually unlimited options in furnace vessel design, in addition to outstanding compatibility with siphon solutions. Attached to the steel shell and connected by a throat is an induction unit which forms the melting component of the furnace. The first induction furnace for three phase application was built in germany in 1906 by rochlingrodenhauser. The channel induction furnace consists of a refractory lined steel shell which contains the molten metal. Steelmaking based on inductive melting abp induction systems. The two basic designs of induction furnaces, the core type or channel furnace and the coreless. For more information or a complete evaluation of your refractory requirements, please contact your local allied representative. This video explains induction furnace introduction, advantages, parameters, eddy current, electromagnetic induction, working principle through animation. Induction furnaces basics of foundry melting furnaces. Global refractory solutions channel induction furnace inductor copper alloy products chemistry % density water addition % temperature limit al 2o 3 sio 2 sic mgo gcm3 lbft3 casting c f vcast 426a 80. In the case of channel furnaces and casting equipment heated by induc. The inductor is actually a transformer whereby the secondary winding is formed with the help of a loop of liquid metal confined in a closed refractory channel. Installation of a crucible in a coreless induction furnace presented by vesuviusfoseco. Channel induction furnaces harbisonwalker international.
For the above reasons channel type induction furnaces fig. Characteristic features of induction furnaces there are two main types of induction furnaces used in industry, namely the induction channel furnace and the induction crucible furnace. An induction furnace uses induction to heat a metal to its melting point which is based on the. Contains crystalline silica and boron oxide or boric acid. Application of the channel induction furnace for melting aluminum. Induction furnace working through animation youtube. On this channel you can get education and knowledge for general issues and topics. Keywords induction furnace, molten metal, productivity, melt rate. The two basic designs of induction furnaces, the core type or channel furnace and the coreless, are certainly not new to. Aluminum scrap can be processed in various melting units.
The channel type induction melting furnace with its high electrothermal efficiency, variable furnace geometry and cost effectiveness, is the preferred furnace choice. The two basic designs of induction furnaces, the core type or channel furnace and the coreless, are certainly not new to the industry. In the electric arc furnace, steel is produced only through scrap fusion. Original designs were for single phase and even two phases were used on the three phase furnace. The following are offered as general precaution, applicable to the foundry and steel plant and cannot be constructed to cover all types of operations. The following manual is no longer available in its. Channeltype versus coreless induction furnaces marx gmbh.
The international agency for research on cancer iarc has classified crystalline silica. Channel type induction furnaces for melting in a channel type unit, the inductors can be fitted at the bottom andor at the sides of the furnace. One unique and wellknown feature of the coreless induction furnace is its pronounced metal bath. The otto junker channel type induction furnace is used where liquid metal must be held, stored, superheated or poured in large quantities. Channel type induction furnace these furnaces basically consist of a vessel to which one or more inductors are attached. In the furnace the energy is transformed from the power system at. Scraps, direct reduced iron, pig iron, and additives are melted through highpower electric arcs formed between a cathode. Moreover, a large holding furnace can be used to equalize the carbon concentrations of different melts from a cupola.