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亞洲婷婷國產精品電影人久久:湖南PPH管的制造工藝(yi)都是環環相扣需(xu)仔細才可

PPH管(guan)(guan)(guan)在管(guan)(guan)(guan)材(cai)零件(jian)的(de)制造中(zhong)，首先需對管(guan)(guan)(guan)材(cai)進行切(qie)斷(duan)(duan)(duan)，以獲得(de)管(guan)(guan)(guan)件(jian)所需長度(du)的(de)管(guan)(guan)(guan)坯。管(guan)(guan)(guan)材(cai)切(qie)斷(duan)(duan)(duan)主要(yao)用(yong)機械加(jia)工(gong)(gong)和沖壓(ya)加(jia)工(gong)(gong)兩種方(fang)法(fa)。機械加(jia)工(gong)(gong)包括鋸床(chuang)切(qie)斷(duan)(duan)(duan)、車床(chuang)切(qie)斷(duan)(duan)(duan)、砂(sha)輪切(qie)斷(duan)(duan)(duan)等，優點是切(qie)斷(duan)(duan)(duan)面(mian)(mian)(mian)質量穩定，但(dan)因其生(sheng)產率低，故難(nan)以滿(man)足大批量生(sheng)產的(de)要(yao)求。沖壓(ya)加(jia)工(gong)(gong)生(sheng)產率高，但(dan)切(qie)斷(duan)(duan)(duan)時管(guan)(guan)(guan)壁易被壓(ya)扁，導致切(qie)斷(duan)(duan)(duan)面(mian)(mian)(mian)畸(ji)變、歪斜。如(ru)果(guo)采用(yong)剪(jian)切(qie)棒(bang)料的(de)方(fang)法(fa)剪(jian)切(qie)普材(cai)，管(guan)(guan)(guan)材(cai)必然被壓(ya)扁而不能(neng)使用(yong)。因此，采取特(te)殊的(de)工(gong)(gong)藝措施，防止剪(jian)切(qie)時管(guan)(guan)(guan)材(cai)被壓(ya)扁，以保證切(qie)斷(duan)(duan)(duan)面(mian)(mian)(mian)質量滿(man)足管(guan)(guan)(guan)件(jian)的(de)使用(yong)要(yao)求，是十分重(zhong)要(yao)的(de)。下(xia)面(mian)(mian)(mian)介紹幾種已在生(sheng)產中(zhong)應(ying)用(yong)的(de)特(te)殊的(de)PPR管(guan)(guan)(guan)材(cai)管(guan)(guan)(guan)材(cai)切(qie)斷(duan)(duan)(duan)方(fang)法(fa)。

PPH管焊接工藝

PPH管(guan)管(guan)材(cai)(cai)(cai)剪(jian)切(qie)是制(zhi)造管(guan)材(cai)(cai)(cai)零件的(de)基本(ben)工(gong)(gong)序，包括(kuo)管(guan)材(cai)(cai)(cai)切(qie)斷、端口(kou)形(xing)樣沖(chong)(chong)裁、沖(chong)(chong)孔及切(qie)口(kou)等。管(guan)材(cai)(cai)(cai)剪(jian)切(qie)屬沖(chong)(chong)壓加(jia)工(gong)(gong)分離工(gong)(gong)序，它與板材(cai)(cai)(cai)剪(jian)切(qie)相(xiang)比(bi)，由(you)(you)于自身(shen)的(de)形(xing)狀(zhuang)(空(kong)心截面)特點(dian)，剪(jian)切(qie)時為防止管(guan)壁被壓扁，采取(qu)的(de)工(gong)(gong)藝措施比(bi)較復雜，同(tong)時對模具設計(ji)及制(zhi)造也提出了(le)更高(gao)要(yao)求。管(guan)材(cai)(cai)(cai)剪(jian)切(qie)與機加(jia)工(gong)(gong)切(qie)斷相(xiang)比(bi)，由(you)(you)于加(jia)工(gong)(gong)速(su)度快，生產效率(lv)高(gao)，適合大批量生產。因而有廣泛的(de)應用前景口(kou)但由(you)(you)于管(guan)材(cai)(cai)(cai)剪(jian)切(qie)加(jia)工(gong)(gong)本(ben)身(shen)較復雜，而且(qie)在(zai)(zai)技術(shu)上(shang)也有不夠(gou)成(cheng)熟之處。所(suo)以在(zai)(zai)生產中的(de)應用還不夠(gou)廣泛口(kou)本(ben)章主(zhu)要(yao)介紹管(guan)材(cai)(cai)(cai)剪(jian)切(qie)的(de)各種工(gong)(gong)藝方法及適用范(fan)圍。

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