16mn無縫鋼管經常出現(xian)的質量問(wen)題?

　　1、 16mn無縫鋼管脫碳

　　脫(tuo)碳是由(you)于鋼件(jian)在加熱或(huo)保溫時，因周圍氣(qi)氛的作用(yong)，使(shi)表面層部分(fen)的碳全部或(huo)部分(fen)喪失的現象和反應。鋼件(jian)的脫(tuo)碳不(bu)僅會(hui)造成硬度(du)不(bu)足、淬裂和熱處(chu)理(li)變(bian)形及化學熱處(chu)理(li)缺(que)陷，而且對疲勞強度(du)、耐磨性及模具性能也有很大影(ying)響。

　　2 、16mn無縫鋼管韌性不足

　　韌性不足的原因可能是淬火(huo)溫度過高，且保溫時(shi)間過長引起晶粒粗化造(zao)成的，或(huo)由(you)于沒有避(bi)開回(hui)火(huo)脆性區進行(xing)回(hui)火(huo)。

　　3 、16mn無縫鋼管磨削裂紋

　　當工(gong)件(jian)(jian)內(nei)有大量的殘留奧氏體(ti)時，在(zai)磨(mo)削熱的作用(yong)下，發生回火轉變，從而(er)產生組織應力，導(dao)致工(gong)件(jian)(jian)開裂。其預(yu)防措施是：淬火后進行深冷處(chu)理或多次重復回火(模具(ju)回火一(yi)般為(wei)2～3次，即使是冷加工(gong)用(yong)低合金工(gong)具(ju)鋼也是如此)，******限度(du)地降低殘留奧氏體(ti)量。

　　4 、16mn無縫鋼管放電加工引(yin)起的裂紋

　　在(zai)模(mo)具(ju)制造中，采(cai)(cai)用(yong)(yong)放(fang)(fang)電(dian)(dian)(dian)加(jia)(jia)(jia)工(gong)(gong)(電(dian)(dian)(dian)脈沖及線切割(ge))是越來越普(pu)遍采(cai)(cai)用(yong)(yong)的加(jia)(jia)(jia)工(gong)(gong)方法，但(dan)隨著(zhu)放(fang)(fang)電(dian)(dian)(dian)加(jia)(jia)(jia)工(gong)(gong)的廣泛應(ying)(ying)(ying)用(yong)(yong)，其(qi)引起的缺(que)陷也相應(ying)(ying)(ying)增(zeng)多。由(you)于放(fang)(fang)電(dian)(dian)(dian)加(jia)(jia)(jia)工(gong)(gong)是借助于放(fang)(fang)電(dian)(dian)(dian)所(suo)產生(sheng)的高溫而使(shi)模(mo)具(ju)表面熔化(hua)的加(jia)(jia)(jia)工(gong)(gong)方法，因(yin)(yin)此(ci)，在(zai)其(qi)加(jia)(jia)(jia)工(gong)(gong)表面形(xing)成白色的放(fang)(fang)電(dian)(dian)(dian)加(jia)(jia)(jia)工(gong)(gong)變(bian)質層，并產生(sheng)800mpa左右的拉應(ying)(ying)(ying)力，這樣(yang)，在(zai)模(mo)具(ju)的電(dian)(dian)(dian)加(jia)(jia)(jia)工(gong)(gong)過程中常出現(xian)變(bian)形(xing)或裂紋等缺(que)陷。因(yin)(yin)此(ci)，采(cai)(cai)用(yong)(yong)放(fang)(fang)電(dian)(dian)(dian)加(jia)(jia)(jia)工(gong)(gong)的模(mo)具(ju)，必須充分掌握放(fang)(fang)電(dian)(dian)(dian)加(jia)(jia)(jia)工(gong)(gong)對模(mo)具(ju)材料的影響，并預先(xian)采(cai)(cai)取相應(ying)(ying)(ying)的預防(fang)措(cuo)施。

　　這是16mn無縫鋼管中經(jing)常出(chu)(chu)現的(de)(de)(de)(de)(de)質(zhi)量問題(ti)，對(dui)于(yu)16mn無(wu)(wu)(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)要(yao)(yao)(yao)(yao)(yao)增強(qiang)它的(de)(de)(de)(de)(de)各個(ge)方(fang)面的(de)(de)(de)(de)(de)優勢(shi)和(he)特征，在(zai)購買的(de)(de)(de)(de)(de)時(shi)候(hou)要(yao)(yao)(yao)(yao)(yao)格外地進(jin)(jin)行(xing)(xing)去注(zhu)意(yi)，這(zhe)樣的(de)(de)(de)(de)(de)話(hua)16mn無(wu)(wu)(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)在(zai)購買的(de)(de)(de)(de)(de)時(shi)候(hou)就能(neng)夠(gou)避免(mian)出(chu)(chu)現這(zhe)些故障，也(ye)避免(mian)上(shang)受騙。關(guan)于(yu)16mn無(wu)(wu)(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)的(de)(de)(de)(de)(de)更多的(de)(de)(de)(de)(de)信息請持(chi)續進(jin)(jin)行(xing)(xing)關(guan)注(zhu)! 無(wu)(wu)(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)在(zai)生(sheng)(sheng)產的(de)(de)(de)(de)(de)過(guo)程(cheng)中由于(yu)生(sheng)(sheng)產的(de)(de)(de)(de)(de)過(guo)多或者是(shi)(shi)不能(neng)夠(gou)進(jin)(jin)行(xing)(xing)及(ji)時(shi)賣出(chu)(chu)去的(de)(de)(de)(de)(de)話(hua)，對(dui)于(yu)無(wu)(wu)(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)要(yao)(yao)(yao)(yao)(yao)進(jin)(jin)行(xing)(xing)及(ji)時(shi)去儲(chu)存，一般的(de)(de)(de)(de)(de)情況下對(dui)于(yu)儲(chu)存無(wu)(wu)(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)要(yao)(yao)(yao)(yao)(yao)注(zhu)意(yi)環(huan)境，因為無(wu)(wu)(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)對(dui)于(yu)環(huan)境的(de)(de)(de)(de)(de)要(yao)(yao)(yao)(yao)(yao)求是(shi)(shi)特別高(gao)的(de)(de)(de)(de)(de)，只有是(shi)(shi)不斷(duan)地進(jin)(jin)行(xing)(xing)提升儲(chu)存的(de)(de)(de)(de)(de)環(huan)境，這(zhe)樣對(dui)于(yu)無(wu)(wu)(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)整個(ge)的(de)(de)(de)(de)(de)儲(chu)存的(de)(de)(de)(de)(de)效(xiao)果都是(shi)(shi)比較好(hao)的(de)(de)(de)(de)(de)，要(yao)(yao)(yao)(yao)(yao)不然的(de)(de)(de)(de)(de)話(hua)無(wu)(wu)(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)是(shi)(shi)會(hui)變(bian)的(de)(de)(de)(de)(de)生(sheng)(sheng)銹(xiu)和(he)腐(fu)蝕，到(dao)時(shi)候(hou)無(wu)(wu)(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)就會(hui)變(bian)質(zhi)。這(zhe)樣對(dui)于(yu)無(wu)(wu)(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)整體的(de)(de)(de)(de)(de)效(xiao)果和(he)性能(neng)都是(shi)(shi)沒有好(hao)處(chu)的(de)(de)(de)(de)(de)。以下是(shi)(shi)無(wu)(wu)(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)在(zai)儲(chu)存的(de)(de)(de)(de)(de)時(shi)候(hou)需要(yao)(yao)(yao)(yao)(yao)注(zhu)意(yi)的(de)(de)(de)(de)(de)環(huan)境要(yao)(yao)(yao)(yao)(yao)求。