公司(si)主營(ying)：鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)定制加(jia)(jia)(jia)工，筒類鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)，異型鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)，不(bu)銹(xiu)鋼(gang)(gang)(gang)鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)，鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)加(jia)(jia)(jia)工，碳鋼(gang)(gang)(gang)鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)，合(he)金鋼(gang)(gang)(gang)鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)，304鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)造，316鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)，45#鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)，軸鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)，非標件(jian)(jian)鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)加(jia)(jia)(jia)工，環(huan)鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)加(jia)(jia)(jia)工，大口(kou)徑法蘭，對焊(han)法蘭，法蘭環(huan)鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)等，歡迎來電咨(zi)詢！鍛(duan)(duan)(duan)(duan)(duan)(duan)(duan)件(jian)(jian)加(jia)(jia)(jia)工

大家(jia)好本(ben)期小編給大家(jia)帶(dai)來新(xin)的內容(rong)，希(xi)望(wang)對(dui)大家(jia)有所幫助：鍛件加工(gong)

鍛件缺陷(xian)與材料特(te)性(xing)不同而引起的超聲波變(bian)化。

通過分(fen)析(xi)超(chao)聲(sheng)波在(zai)介質中的(de)(de)傳(chuan)播特(te)(te)性(xing)以(yi)及大(da)型鍛件內(nei)部(bu)缺陷(xian)的(de)(de)聲(sheng)學特(te)(te)性(xing)可知，各(ge)種(zhong)缺陷(xian)的(de)(de)邊(bian)界(jie)特(te)(te)性(xing)均可歸納為兩大(da)類:裂紋、白點、縮孔、氣泡(pao)、非金屬夾(jia)雜物(wu)的(de)(de)邊(bian)界(jie)屬于“軟”邊(bian)界(jie)，超(chao)聲(sheng)波垂直(zhi)入(ru)射在(zai)這種(zhong)界(jie)面上(shang)時反射回波的(de)(de)相(xiang)位改變180度;高密度金屬夾(jia)雜物(wu)的(de)(de)邊(bian)界(jie)屬于“硬(ying)”邊(bian)界(jie)，超(chao)聲(sheng)波垂直(zhi)入(ru)射在(zai)這種(zhong)界(jie)面上(shang)時其(qi)反射回波的(de)(de)相(xiang)位與入(ru)射波相(xiang)位相(xiang)同。

對(dui)于裂紋(wen)、白點、縮(suo)孔、氣泡(pao)以及非(fei)(fei)金屬(shu)夾(jia)雜(za)物(wu)(wu)，盡(jin)管其(qi)聲阻抗不相同(tong)，但(dan)都(dou)可以通(tong)過(guo)式(shi)(shi)( 1)和式(shi)(shi)( 2)計算(suan)出其(qi)反射(she)(she)率(lv)(lv)和透(tou)射(she)(she)率(lv)(lv)，碳(tan)鋼鍛件加工廠(chang)家(jia)批(pi)發，這2個參數反映了超聲回(hui)波(bo)(bo)(bo)信號(hao)的幅(fu)度衰(shuai)(shuai)減水平。非(fei)(fei)金屬(shu)夾(jia)雜(za)物(wu)(wu)與基(ji)體組織的聲阻抗差(cha)異小(xiao)，透(tou)射(she)(she)率(lv)(lv)高(gao)，因(yin)此其(qi)回(hui)波(bo)(bo)(bo)衰(shuai)(shuai)減非(fei)(fei)常(chang)嚴重，表(biao)現(xian)(xian)為檢測(ce)時底波(bo)(bo)(bo)幅(fu)度小(xiao)甚至沒(mei)有底波(bo)(bo)(bo);白點反射(she)(she)波(bo)(bo)(bo)很強，但(dan)由于其(qi)成群出現(xian)(xian)，故(gu)在檢測(ce)時波(bo)(bo)(bo)形表(biao)現(xian)(xian)為缺(que)陷(xian)信號(hao)清(qing)晰而群集;裂紋(wen)缺(que)陷(xian)的反射(she)(she)波(bo)(bo)(bo)強烈且單一存在，非(fei)(fei)常(chang)清(qing)晰;縮(suo)孔缺(que)陷(xian)由于其(qi)周圍有大(da)量夾(jia)雜(za)物(wu)(wu)，同(tong)時其(qi)表(biao)面(mian)非(fei)(fei)常(chang)粗糙(cao)，故(gu)反射(she)(she)波(bo)(bo)(bo)會產(chan)生了較大(da)的衰(shuai)(shuai)減。

以上(shang)就是關于鍛件(jian)加(jia)工的分享，15crMo鍛件(jian)加(jia)工，希(xi)望能給大家提(ti)供到幫助，了解更多關于鍛件(jian)加(jia)工的問題歡迎來電咨詢，如您(nin)需要，竭誠(cheng)為您(nin)服務。

公司主營(ying)：鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)定制加(jia)(jia)工，筒(tong)類鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，異型鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，不銹鋼(gang)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)加(jia)(jia)工，碳鋼(gang)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，合金(jin)鋼(gang)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，304鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)鍛(duan)(duan)(duan)造，316鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，45#鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，軸(zhou)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，非標件(jian)(jian)(jian)(jian)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)加(jia)(jia)工，環(huan)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)加(jia)(jia)工，大口(kou)徑法蘭(lan)，對焊法蘭(lan)，法蘭(lan)環(huan)鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)等，歡迎來電咨詢！鍛(duan)(duan)(duan)件(jian)(jian)(jian)(jian)加(jia)(jia)工

大(da)家(jia)好本期小(xiao)編給大(da)家(jia)帶來新的內(nei)容，希望對大(da)家(jia)有所(suo)幫助：鍛件(jian)加工

大型筒類鍛(duan)件(jian)(jian)多應用(yong)于壓力(li)容器(qi)，壓力(li)容器(qi)的發(fa)展趨勢(shi)是大型化(hua)和整體(ti)化(hua)，設備的大型化(hua)使鍛(duan)件(jian)(jian)尺寸越(yue)來越(yue)大，有些鍛(duan)件(jian)(jian)尺寸已超過現有壓機的鍛(duan)造(zao)能力(li)。

筒體鍛(duan)件的主(zhu)要(yao)制(zhi)造過程包括(kuo)煉鋼→鍛(duan)造→鍛(duan)后熱處理(li)(li)→性能(neng)熱處理(li)(li)→性能(neng)檢驗。其(qi)中熱加(jia)工工藝(yi)過程對產(chan)品質量(liang)均有影(ying)響，因此可通過控(kong)制(zhi)熱加(jia)工工藝(yi)過程來控(kong)制(zhi)產(chan)品質量(liang)。

筒節鍛件所用(yong)(yong)鋼錠采用(yong)(yong)精選的原材料和鐵合金，電爐冶(ye)煉加爐外精煉。鋼水(shui)經合理控制化學成分、真空(kong)(kong)冶(ye)煉并真空(kong)(kong)澆注，保證(zheng)得(de)到高純凈度的鋼。

由于(yu)筒體(ti)鍛件尺寸(cun)超過現有水壓機(ji)的尺寸(cun)，無(wu)法利(li)用(yong)水壓機(ji)直接鍛造(zao)(zao)出(chu)(chu)成(cheng)(cheng)品(pin)。筒體(ti)鍛件的鍛造(zao)(zao)在(zai) 150MN水壓機(ji)和筒體(ti)軋(ya)(ya)機(ji)上(shang)完成(cheng)(cheng)。先利(li)用(yong)水壓機(ji)鍛造(zao)(zao)出(chu)(chu)半成(cheng)(cheng)品(pin)，然后在(zai)筒節軋(ya)(ya)機(ji)上(shang)軋(ya)(ya)制出(chu)(chu)成(cheng)(cheng)品(pin)。筒節的鍛造(zao)(zao)過程為：鐓粗、沖孔→芯棒、拔長→馬杠擴孔→軋(ya)(ya)制出(chu)(chu)成(cheng)(cheng)品(pin)。

本期(qi)內容(rong)就跟(gen)大家(jia)分享到這里了(le)，更多關于鍛件加工的精(jing)彩資訊請繼(ji)續關注我們吧(ba)！

公司主營：鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)定制加工(gong)(gong)，筒(tong)類鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，異型(xing)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，S30408鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)加工(gong)(gong)，不銹鋼(gang)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)加工(gong)(gong)，碳鋼(gang)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，合金鋼(gang)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，304鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)鍛(duan)(duan)(duan)(duan)(duan)造，316鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，45#鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，軸鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)，非標件(jian)(jian)(jian)(jian)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)加工(gong)(gong)，環(huan)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)加工(gong)(gong)，許昌鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)加工(gong)(gong)，大口徑法(fa)蘭(lan)，對焊(han)法(fa)蘭(lan)，法(fa)蘭(lan)環(huan)鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)等，歡迎(ying)來電咨詢！鍛(duan)(duan)(duan)(duan)(duan)件(jian)(jian)(jian)(jian)加工(gong)(gong)

大(da)家好(hao)本(ben)期(qi)小編給(gei)大(da)家帶(dai)來(lai)新的內(nei)容，希望對(dui)大(da)家有(you)所幫助：鍛件加工

大型筒體鍛件(jian)的成(cheng)形制造技術(shu)

由于(yu)大(da)型(xing)筒體(ti)鍛件(jian)特(te)別是厚壁的(de)筒體(ti)鍛件(jian)通過鍛造過程很難得到細小的(de)晶粒，鍛造完(wan)成后(hou)(hou)心部溫度仍然很高(gao)，晶粒會長大(da)。在鍛件(jian)鍛造完(wan)成后(hou)(hou)進(jin)行鍛后(hou)(hou)熱處理，其主要作用是調整(zheng)和細化晶粒，為后(hou)(hou)續性能熱處理做(zuo)好組織準備。

鍛件可通過性(xing)能(neng)(neng)熱處理獲得(de)優良組織和(he)性(xing)能(neng)(neng)，特別是(shi)低溫(wen)韌(ren)性(xing)，性(xing)能(neng)(neng)熱處理一(yi)般采用水淬(cui)。性(xing)能(neng)(neng)熱處理的溫(wen)度、時間和(he)奧氏(shi)體化后(hou)的冷卻速(su)率對(dui)獲得(de)良好(hao)性(xing)能(neng)(neng)至關重要。

性能(neng)(neng)熱(re)(re)處(chu)理(li)后(hou)，在筒節水口(kou)(kou)(kou)端周 向對稱(cheng)(cheng)180。取下性能(neng)(neng)試(shi)料(liao)(liao)兩塊(kuai)A、B，在冒口(kou)(kou)(kou)端與水口(kou)(kou)(kou)端試(shi)料(liao)(liao)順時針轉90°的(de)位(wei)置周向對稱(cheng)(cheng)180°取下性能(neng)(neng)試(shi)料(liao)(liao)兩塊(kuai)C、D。按要求(qiu)分解試(shi)樣(yang)后(hou)，先經歷(li)模(mo)(mo)擬(ni)焊后(hou)熱(re)(re)處(chu)理(li)，再加工(gong)成相應(ying)試(shi)樣(yang)進行性能(neng)(neng)檢驗(yan)。大模(mo)(mo)擬(ni)焊后(hou)熱(re)(re)處(chu)理(li)為(wei) 610～620℃×21h，小(xiao)模(mo)(mo)擬(ni)焊后(hou)熱(re)(re)處(chu)理(li)為(wei)610～620℃×5h。在正常(chang)產品(pin)檢驗(yan)以外(wai)，對每塊(kuai)試(shi)料(liao)(liao)進行了(le)全厚度不(bu)同部位(wei)的(de)性能(neng)(neng)檢驗(yan)。

Φ9m超大筒節鍛件(jian)的不同部位性能結果(guo)均滿足技術條件(jian)要求，且各項性能相對較為均勻，說明(ming)現有制造工藝是可行的。

現在筒體鍛(duan)件的強度(du)余量(liang)較(jiao)大，沖擊功余量(liang)相(xiang)對較(jiao)小，后續研究考(kao)慮(lv)優化成(cheng)分和(he)工藝，使強度(du)和(he)沖擊功達到(dao)好的匹配(pei)。

本期內容就跟大(da)家分(fen)享到這里(li)了，更多關于(yu)鍛件加(jia)工(gong)的精彩(cai)資訊請(qing)繼續關注我(wo)們吧！