卷管的焊接溫度操縱的參數

　　卷管的焊接溫度關鍵受高頻率渦旋熱輸出功率的危害，依據卷管頻(pin)(pin)率(lv)公(gong)式所知，高頻(pin)(pin)率(lv)渦(wo)旋(xuan)熱輸出功率(lv)關鍵受電(dian)流(liu)(liu)量(liang)頻(pin)(pin)率(lv)的(de)危害，渦(wo)旋(xuan)熱輸出功率(lv)與電(dian)流(liu)(liu)量(liang)鼓勵(li)頻(pin)(pin)率(lv)的(de)平(ping)方米正比;而(er)電(dian)流(liu)(liu)量(liang)鼓勵(li)頻(pin)(pin)率(lv)又受鼓勵(li)工作電(dian)壓、電(dian)流(liu)(liu)量(liang)和(he)電(dian)容器、電(dian)感器的(de)危害。鼓勵(li)頻(pin)(pin)率(lv)公(gong)式為：

　　f=1/[2π(CL)1/2]...(1)

　　式中(zhong)(zhong)：f-鼓(gu)(gu)勵頻(pin)率(Hz);C-鼓(gu)(gu)勵控制(zhi)回(hui)路中(zhong)(zhong)的(de)電(dian)(dian)(dian)容器(qi)(F)，電(dian)(dian)(dian)容器(qi)=用電(dian)(dian)(dian)量(liang)/工作電(dian)(dian)(dian)壓;L-鼓(gu)(gu)勵控制(zhi)回(hui)路中(zhong)(zhong)的(de)電(dian)(dian)(dian)感器(qi)，電(dian)(dian)(dian)感器(qi)=磁通量(liang)/電(dian)(dian)(dian)流量(liang)

　　上式所知，鼓(gu)勵頻(pin)率(lv)與(yu)鼓(gu)勵控制(zhi)回路中(zhong)的(de)電(dian)(dian)(dian)(dian)容器(qi)、電(dian)(dian)(dian)(dian)感(gan)器(qi)平方根反比、或(huo)(huo)是(shi)與(yu)工作電(dian)(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)(dian)流(liu)(liu)量的(de)平方根正比，要是(shi)更(geng)改控制(zhi)回路中(zhong)的(de)電(dian)(dian)(dian)(dian)容器(qi)、電(dian)(dian)(dian)(dian)感(gan)器(qi)或(huo)(huo)工作電(dian)(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)(dian)流(liu)(liu)量就可(ke)以(yi)更(geng)改鼓(gu)勵頻(pin)率(lv)的(de)尺寸，進而做到操(cao)縱卷管焊接溫度(du)的(de)目地。針對高碳鋼，焊接溫度(du)操(cao)縱在1250~1460℃，可(ke)考慮壁厚(hou)厚(hou)3~5mm熔透(tou)規定。此外，焊接溫度(du)也可(ke)以(yi)根據調(diao)整焊接速率(lv)來保持。

　　當(dang)鍵入(ru)發熱(re)量(liang)不夠時(shi)(shi)(shi)，被(bei)加(jia)溫(wen)的(de)(de)焊接邊沿(yan)達不上焊接溫(wen)度(du)，金屬(shu)材料機(ji)構依然維持固體，產生未焊接或(huo)未熔(rong)透;當(dang)鍵入(ru)熱(re)時(shi)(shi)(shi)不夠時(shi)(shi)(shi)，被(bei)加(jia)溫(wen)的(de)(de)焊接邊沿(yan)超出焊接溫(wen)度(du)，造成粗晶或(huo)熔(rong)滴，使焊接產生熔(rong)洞(dong)。