16mn厚壁(bi)鋼管選用(yong)擠壓(ya)成(cheng)型加工，因(yin)為表層(ceng)(ceng)留(liu)出表層(ceng)(ceng)殘留(liu)壓(ya)地應力，有利(li)于表層(ceng)(ceng)細微(wei)裂(lie)痕(hen)的(de)封閉(bi)式，阻攔沉積作用(yong)的(de)拓展(zhan)。進(jin)而提(ti)升(sheng)(sheng) 表層(ceng)(ceng)耐腐蝕工作能(neng)力，并能(neng)減(jian)緩疲(pi)憊裂(lie)痕(hen)的(de)造成(cheng)或擴(kuo)張(zhang)，因(yin)此提(ti)升(sheng)(sheng) 16mn厚壁(bi)鋼管疲(pi)勞極(ji)限。根(gen)據(ju)擠壓(ya)成(cheng)型成(cheng)形，擠壓(ya)成(cheng)型表層(ceng)(ceng)產生(sheng)一層(ceng)(ceng)冷工硬底化層(ceng)(ceng)，降低了切削副(fu)觸(chu)碰表層(ceng)(ceng)的(de)延展(zhan)性和塑(su)性形變，進(jin)而提(ti)升(sheng)(sheng) 了16mn厚壁(bi)鋼管內腔的(de)耐磨性能(neng)，另外防止了因(yin)切削造成(cheng)的(de)燙傷。擠壓(ya)成(cheng)型后，粗糙度值的(de)減(jian)少，可提(ti)升(sheng)(sheng) 相互配合特性。

　　16mn厚壁鋼(gang)管

　　擠壓(ya)(ya)(ya)(ya)成(cheng)(cheng)型(xing)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)是(shi)一(yi)種(zhong)(zhong)無(wu)(wu)切削加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)，在常溫狀態運(yun)用(yong)金(jin)屬材料(liao)的(de)(de)(de)(de)(de)(de)塑性(xing)(xing)(xing)(xing)形(xing)(xing)變，使產(chan)品(pin)工(gong)(gong)(gong)(gong)件表(biao)層的(de)(de)(de)(de)(de)(de)外(wai)部經濟不(bu)平度(du)(du)輾平進而做(zuo)到更改表(biao)層結構、機(ji)械設備特(te)點(dian)、樣子和(he)(he)規格的(de)(de)(de)(de)(de)(de)目地(di)(di)。因而這類方式可(ke)另外(wai)做(zuo)到鑄型(xing)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)及加(jia)(jia)(jia)(jia)強二種(zhong)(zhong)目地(di)(di)，是(shi)切削沒法保(bao)證的(de)(de)(de)(de)(de)(de)。不(bu)管用(yong)哪(na)種(zhong)(zhong)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)方式加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)，在零件表(biao)層都會(hui)留(liu)有微細的(de)(de)(de)(de)(de)(de)凹凸不(bu)平的(de)(de)(de)(de)(de)(de)刀(dao)紋(wen)，出現(xian)交(jiao)疊波動的(de)(de)(de)(de)(de)(de)峰時狀況(kuang)，擠壓(ya)(ya)(ya)(ya)成(cheng)(cheng)型(xing)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)基(ji)本原理：它是(shi)一(yi)種(zhong)(zhong)工(gong)(gong)(gong)(gong)作壓(ya)(ya)(ya)(ya)力(li)鑄型(xing)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)，是(shi)運(yun)用(yong)金(jin)屬材料(liao)在常溫下的(de)(de)(de)(de)(de)(de)冷塑性(xing)(xing)(xing)(xing)變形(xing)(xing)特(te)性(xing)(xing)(xing)(xing)，運(yun)用(yong)擠壓(ya)(ya)(ya)(ya)成(cheng)(cheng)型(xing)專用(yong)工(gong)(gong)(gong)(gong)具對產(chan)品(pin)工(gong)(gong)(gong)(gong)件表(biao)層釋(shi)放一(yi)定的(de)(de)(de)(de)(de)(de)工(gong)(gong)(gong)(gong)作壓(ya)(ya)(ya)(ya)力(li)，使產(chan)品(pin)工(gong)(gong)(gong)(gong)件表(biao)面金(jin)屬材料(liao)造成(cheng)(cheng)塑性(xing)(xing)(xing)(xing)變形(xing)(xing)流(liu)動性(xing)(xing)(xing)(xing)，填寫到初(chu)始(shi)殘余的(de)(de)(de)(de)(de)(de)低陷波谷中，而做(zuo)到產(chan)品(pin)工(gong)(gong)(gong)(gong)件表(biao)層不(bu)光滑(hua)值減少。因為被擠壓(ya)(ya)(ya)(ya)成(cheng)(cheng)型(xing)的(de)(de)(de)(de)(de)(de)表(biao)面金(jin)屬材料(liao)塑性(xing)(xing)(xing)(xing)形(xing)(xing)變，使表(biao)面機(ji)構冷硬底(di)化和(he)(he)晶體變窄，產(chan)生(sheng)高(gao)密度(du)(du)的(de)(de)(de)(de)(de)(de)纖維，并產(chan)生(sheng)內應力(li)層，強度(du)(du)和(he)(he)抗壓(ya)(ya)(ya)(ya)強度(du)(du)提升 ，進而改進了產(chan)品(pin)工(gong)(gong)(gong)(gong)件表(biao)層的(de)(de)(de)(de)(de)(de)耐磨性(xing)(xing)(xing)(xing)能、耐腐蝕性(xing)(xing)(xing)(xing)和(he)(he)相互配合性(xing)(xing)(xing)(xing)。擠壓(ya)(ya)(ya)(ya)成(cheng)(cheng)型(xing)是(shi)一(yi)種(zhong)(zhong)無(wu)(wu)鉆(zhan)削的(de)(de)(de)(de)(de)(de)塑性(xing)(xing)(xing)(xing)變形(xing)(xing)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)方式。

　　16mn厚(hou)壁鋼管幾大優勢：

　　1、提升 粗(cu)糙度，表面粗(cu)糙度基(ji)礎能做到(dao)Ra≤0.08μm上下。

　　2、調(diao)整同(tong)心度，橢圓形度可≤0.01mm。

　　3、提升 表層強度，使承受力形(xing)變清除，強度提升 HV≥4°

　　4、加(jia)工后有(you)內(nei)應(ying)力層,提(ti)升 疲(pi)勞極限提(ti)升 30%。

　　5、提升 相互配合(he)質量，降(jiang)低(di)磨壞(huai)，增加(jia)零件(jian)使(shi)用期，但零件(jian)的加(jia)工花費(fei)反(fan)倒減少(shao)。