【正文】 反映在對(duì)加熱方面的需求趨勢(shì)為：數(shù)字化制造融入鑄鍛過(guò)程，包括加熱、熔煉設(shè)備；鑄鍛短流程生產(chǎn)要求減少資源浪費(fèi)；大型鑄鍛件生產(chǎn)要求工業(yè)節(jié)能；自動(dòng)化控制下的清潔生產(chǎn)。采用IGCT的電源也開(kāi)始亮相。（2）中頻加熱設(shè)備 也有一套將工頻50Hz轉(zhuǎn)變成中頻（500～10 000Hz）電能的裝置，通常為中頻發(fā)電機(jī)（功率因數(shù)低）和晶閘管變頻器?！澳吓伞钡拇碛姓駞恰⑺倪_(dá)、兆力等公司；“北派”是以西安市感應(yīng)加熱的公司為代表，這些廠家中比較有影響的有西安博大電爐有限公司、西安電爐研究所有限公司、西安鵬遠(yuǎn)重型電爐廠、西安機(jī)電研究所、陜西海意、西安自動(dòng)化和華立等。20世紀(jì)90年代，國(guó)外的一些感應(yīng)電爐公司直接到中國(guó)來(lái)辦廠，如美國(guó)的應(yīng)達(dá)感應(yīng)加熱公司和彼樂(lè)公司等，和國(guó)內(nèi)的同行業(yè)廠家同臺(tái)競(jìng)爭(zhēng)。國(guó)內(nèi)發(fā)展與現(xiàn)狀我國(guó)感應(yīng)加熱技術(shù)的應(yīng)用開(kāi)始于20世紀(jì)50年代，發(fā)展主要是改革開(kāi)放以后，主要用于機(jī)床、汽車(chē)、拖拉機(jī)等制造業(yè)。（7）感應(yīng)加熱釬焊。（3）汽車(chē)零部件的熱處理。在加熱方面，據(jù)統(tǒng)計(jì)，前蘇聯(lián)在汽車(chē)工業(yè)中感應(yīng)熱處理的零件已占熱處理零件的40%～45%。在熔煉方面，鑄造是一種易于成形的金屬加工方法。第五，感應(yīng)加熱還具備電能利用率高、環(huán)保節(jié)能、安全可靠和作業(yè)環(huán)境好等優(yōu)點(diǎn)。感應(yīng)熔煉爐與感應(yīng)透熱爐的實(shí)際坯料加熱熱效率可達(dá)到65%～75%，而火焰爐和各種室式爐只有30%左右。（11）熔煉中溶液有電磁攪拌作用。（7）作業(yè)環(huán)境好，幾乎沒(méi)有噪聲和灰塵。（2）加熱效率高。 cleaner production under automatic control .Therefore, induction heating equipment in its energy saving features , the market demand to have a large, intelligent automation and control tends to develop in the direction of the trend . 感應(yīng)加熱技術(shù)的應(yīng)用及發(fā)展感應(yīng)加熱作為新興的學(xué)科，在近30年來(lái)得到了真正應(yīng)用。 super audio segment mainly uses IGBT。an electric study Limited , Xi39。(6) easy to achieve automatic (7) operating environment , almost no noise and dust.(8) Work footprint, high production efficiency.(9) can be heated plex shape of the workpiece.(10) of the workpiece easily heated evenly, good quality products.(11) was melted in an electromagnetic stirring . The molten metal can be uniformly adjusted ingredients , temperature of the solution evenly, local temperature does not occur . Metal burning less , which is, more important for the smelting of rare metals .Advantages of induction heating : the first is the low energy consumption. The actual thermal efficiency billet heating induction melting furnace and induction heating furnace can reach 65% to 75 %, while the flame stove and various chamber furnace is only about 30 %.Second, do not need this kind of furnace stoves , gas stoves and electric resistance furnace preheating process , etc. must be easy to use, easy to operate , can work long hours can also start or stop working at any time according to need , full manual can be fully automated or semiautomatic working , when you can have the absolute advantage in production scheduling .Third , without heating the whole of the workpiece , optional local heating , thus less power consumption, a small deformation of the workpiece and heating speed , the workpiece can reach the desired temperature in a very short time , so that the surface oxidation and decarbonization such defects to a very low degree of heat can be used for steel , tungsten, molybdenum, iron and steel materials can be used in chemical activity of the strong aluminum , titanium, zirconium , niobium, heating or heat treatment.Fourth, induction heating equipment can be installed in the production line , easy to implement production line automation and mechanization , easy to manage , which can effectively reduce the transportation, saving manpower , improve production efficiency.Fifth, induction heating also has high energy efficiency , environmental protection and energy saving, safe, reliable and a good working environment and so on.Based on these advantages, the energy instead of coal , oil , gas and other nonrenewable energy in heating energy field advantage is being today, induction heating in the melting , heating and other fields are increasingly widely used , especially electric heating induction heating applications are a very wide range of applications , induction heating equipment manufacturers have broad space for development .Applications in the automotive manufactureBooming automobile industry to the automotive parts industry has brought unprecedented opportunities for development . Induction heating technology in the field of automobile manufacturing is also being more widely used.In melting , the metal casting is an easy method for forming processing . The method can be made by casting the various automotive parts of plex shapes and sizes . Things can be said in terms of development of automobile industry the best use of almost all of the casting process for the automotive industry can do everything . Domestic and foreign auto parts casting melting process of production are used mainly cupola melting process, the intermediate frequency induction furnace melting process and cupola double frequency induction furnace melting process , and induction melting furnaces because of its technical superiority in the foundry industry is also being increasingly wide range of applications .In terms of heating , according to statistics , the former Soviet Union in the automotive industry induction heat treated parts accounted for 40 % to 45% heattreated parts. Induction heating technology development today, and the extent of their application development selfevident.Induction heating technology in the automotive industry is mainly used in the following areas:( 1) a metal smelting .( 2 ) heating the forging blank .( 3 ) heat treatment of auto parts .( 4 ) induction of auto parts after heat curing adhesive .( 5 ) induction heating semisolid forming .( 6 ) induction heating assembly.( 7 ) The induction heating for brazing .Status of foreign induction heatingWith the continuous development of power electronics technology development and power semiconductor devices , induction heating device also will be changing the face of changes in the volume , quality and performance to the device is particularly prominent. Such as frequency , with the capacity of a transistor type inverter device with tube type inverter device reduced volume pared to 2/3 weight 2/ 3 , the cooling water saving 1/ 2 , the power consumption savings of 1/ 3 , the efficiency increased by 35 %. longer life, more secure, reliable , easy to implement automatic control , help to improve the heating efficiency and quality , maintenance workload is smaller, can be used with the open .Technology development and application of induction heating equi