高頻及感(gan)應(ying)加熱設備原理解析

下面便是鄭州淬火設備為大家打來的一些相關知識。

       高頻及感應(ying)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)技術目前對(dui)(dui)金(jin)(jin)屬材(cai)(cai)料加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)效率(lv)高、速度快(kuai)，且(qie)低耗(hao)環保。它已經廣泛應(ying)用(yong)于各(ge)行各(ge)業對(dui)(dui)金(jin)(jin)屬材(cai)(cai)料的(de)熱(re)(re)(re)(re)加(jia)(jia)(jia)(jia)(jia)工(gong)、熱(re)(re)(re)(re)處理(li)、熱(re)(re)(re)(re)裝配及焊接(jie)、熔煉(lian)等(deng)工(gong)藝(yi)中(zhong)。它不(bu)但可(ke)以對(dui)(dui)工(gong)件(jian)(jian)(jian)整體加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)，還能對(dui)(dui)工(gong)件(jian)(jian)(jian)局部的(de)針對(dui)(dui)性加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)；可(ke)實現工(gong)件(jian)(jian)(jian)的(de)深(shen)層透熱(re)(re)(re)(re)，也可(ke)只對(dui)(dui)其表面、表層集中(zhong)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)；不(bu)但可(ke)對(dui)(dui)金(jin)(jin)屬材(cai)(cai)料直接(jie)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)，也可(ke)對(dui)(dui)非(fei)金(jin)(jin)屬材(cai)(cai)料進(jin)行間(jian)接(jie)式加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)。等(deng)等(deng)。因此，感應(ying)加(jia)(jia)(jia)(jia)(jia)熱(re)(re)(re)(re)技術必將(jiang)在各(ge)行各(ge)業中(zhong)應(ying)用(yong)越來越廣泛。

       ; 用(yong)感應(ying)電流使(shi)工件(jian)局(ju)部(bu)加(jia)熱(re)的表(biao)面熱(re)處(chu)理(li)工藝。這種(zhong)熱(re)處(chu)理(li)工藝常用(yong)于(yu)(yu)表(biao)面淬火(huo)，也(ye)可用(yong)于(yu)(yu)局(ju)部(bu)退火(huo)或(huo)回(hui)火(huo)，有時也(ye)用(yong)于(yu)(yu)整(zheng)體淬火(huo)和(he)回(hui)火(huo)。

       將工(gong)(gong)件(jian)放(fang)入感(gan)應器(線圈)內(nei)，當(dang)感(gan)應器中通入一定(ding)頻率(lv)的交變電(dian)(dian)(dian)流(liu)(liu)時,周(zhou)圍即產生交變磁(ci)場。交變磁(ci)場的電(dian)(dian)(dian)磁(ci)感(gan)應作用使(shi)工(gong)(gong)件(jian)內(nei)產生封閉(bi)的感(gan)應電(dian)(dian)(dian)流(liu)(liu)——渦(wo)流(liu)(liu)。感(gan)應電(dian)(dian)(dian)流(liu)(liu)在(zai)工(gong)(gong)件(jian)截面上的分(fen)布很不均勻，工(gong)(gong)件(jian)表(biao)(biao)層(ceng)(ceng)(ceng)電(dian)(dian)(dian)流(liu)(liu)密度很高(gao)(gao)，向內(nei)逐漸減小,這種(zhong)現象稱為集膚效(xiao)應。工(gong)(gong)件(jian)表(biao)(biao)層(ceng)(ceng)(ceng)高(gao)(gao)密度電(dian)(dian)(dian)流(liu)(liu)的電(dian)(dian)(dian)能(neng)轉(zhuan)變為熱能(neng)，使(shi)表(biao)(biao)層(ceng)(ceng)(ceng)的溫(wen)度升高(gao)(gao)，即實現表(biao)(biao)面加(jia)熱。電(dian)(dian)(dian)流(liu)(liu)頻率(lv)越(yue)高(gao)(gao)，工(gong)(gong)件(jian)表(biao)(biao)層(ceng)(ceng)(ceng)與內(nei)部的電(dian)(dian)(dian)流(liu)(liu)密度差(cha)則越(yue)大，加(jia)熱層(ceng)(ceng)(ceng)越(yue)薄。在(zai)加(jia)熱層(ceng)(ceng)(ceng)溫(wen)度超過鋼的臨界點溫(wen)度后迅(xun)速冷(leng)卻，即可實現表(biao)(biao)面淬火。

      以上(shang)就是鄭州淬火設備為大家整理的資料，希望對大家有所幫(bang)助，也(ye)歡迎大家有問(wen)題的話(hua)隨時前來(lai)咨(zi)詢(xun)我(wo)們(men)哦(e)。