貴州華冶鋼聯鋼材有限公司
銷售一處
電(dian)話(hua):0851-87975109
手機(ji):13985191185楊(yang)經理
銷售二處
電(dian)話:0851-87975078
手機(ji):18096004829王經理(li)
傳真:0851-83878114
Q Q:2792334889
地址:貴陽南明區乾郎鋼(gang)材(cai)市(shi)場B1-17
無縫管
無縫鋼管現貨(huo)市場價格(ge)小幅(fu)松動,鋼坯跌破3400元整數(shu)關囗,成材(cai)價格(ge)降幅(fu)在幾十元不等。從成交情況來看(kan),整體表現較為平淡(dan),早盤詢價冷清, 隨著期貨(huo)的(de)反彈(dan),低位成交有好轉跡象(xiang)。
無(wu)縫鋼管是以(yi)一匝或多(duo)匝的(de)(de)磁(ci)(ci)感應(ying)(ying)陷(xian)阱在(zai)被焊的(de)(de)無(wu)縫鋼管外(wai),多(duo)匝的(de)(de)效果非(fei)常的(de)(de)好于單匝,可是多(duo)匝電(dian)磁(ci)(ci)感應(ying)(ying)線(xian)(xian)圈制做安裝比較艱難。電(dian)磁(ci)(ci)感 應(ying)(ying)線(xian)(xian)圈與無(wu)縫鋼管表層(ceng)間隔鐘頭高效率較高,但非(fei)常容易導致(zhi)電(dian)磁(ci)(ci)感應(ying)(ying)線(xian)(xian)圈與管件中間的(de)(de)充放電(dian),一般要維持電(dian)磁(ci)(ci)感應(ying)(ying)線(xian)(xian)圈離無(wu)縫鋼管表層(ceng)有 5~8mm的(de)(de)間隙(xi)為宜。
無縫(feng)鋼(gang)管(guan)選(xuan)用(yong)(yong)(yong)磁感(gan)應焊時(shi)(shi),因為電(dian)(dian)(dian)磁感(gan)應線圈不與(yu)厚鋼(gang)板(ban)觸碰,因此不會有損壞,其(qi)感(gan)應電(dian)(dian)(dian)動(dong)勢比(bi)較平(ping)穩,確保了(le)(le)焊接(jie)(jie)時(shi)(shi)的(de)(de)可靠性(xing),焊接(jie)(jie)時(shi)(shi) 無縫(feng)鋼(gang)管(guan)的(de)(de)表(biao)層質量(liang)(liang)(liang)好(hao),焊接(jie)(jie)整平(ping),在生產制(zhi)造如API等高精密管(guan)道時(shi)(shi),大(da)部分都選(xuan)用(yong)(yong)(yong)磁感(gan)應焊的(de)(de)方式。選(xuan)用(yong)(yong)(yong)傳(chuan)輸防爆開關焊接(jie)(jie)時(shi)(shi),憑(ping)借2個觸碰頭(電(dian)(dian)(dian)級(ji))2和3把高頻率電(dian)(dian)(dian)流(liu)量(liang)(liang)(liang)傳(chuan)入管(guan)料(liao)(liao)(liao)1上。焊接(jie)(jie)電(dian)(dian)(dian)流(liu)量(liang)(liang)(liang)沿管(guan)料(liao)(liao)(liao)焊縫(feng)兩邊穿過,并根據擠壓(ya)成(cheng)型(xing)輥5周邊的(de)(de)焊縫(feng)兩邊會合(he)點產生控制(zhi)回路。在管(guan)料(liao)(liao)(liao)兩邊焊縫(feng)上的(de)(de)電(dian)(dian)(dian)流(liu)的(de)(de)方 向是反過來的(de)(de),因而,鄰(lin)近效應使電(dian)(dian)(dian)流(liu)量(liang)(liang)(liang)集中(zhong)(zhong)化(hua)于焊縫(feng)的(de)(de)表(biao)層,電(dian)(dian)(dian)流(liu)量(liang)(liang)(liang)頻率越高,電(dian)(dian)(dian)流(liu)量(liang)(liang)(liang)就越集中(zhong)(zhong)化(hua)于其(qi)表(biao)層。特性(xing)阻抗器4提升(sheng)了(le)(le)焊縫(feng)加熱的(de)(de)集中(zhong)(zhong)化(hua)水平(ping), 因為它擴大(da)了(le)(le)電(dian)(dian)(dian)流(liu)量(liang)(liang)(liang)圍繞(rao)管(guan)料(liao)(liao)(liao)穿過的(de)(de)阻抗角。