這(zhe)(zhe)種(zhong)(zhong)情況一(yi)(yi)直,持(chi)續到了(le)無(wu)(wu)縫鋼(gang)(gang)管(guan)(guan)(guan)現之后,才被徹底解決了(le)。可能(neng)有(you)(you)不(bu)(bu)少戶(hu),對于這(zhe)(zhe)種(zhong)(zhong)管(guan)(guan)(guan)道(dao)(dao),還(huan)不(bu)(bu)是(shi)(shi)(shi)(shi)(shi)那么(me)熟悉(xi)。可凡是(shi)(shi)(shi)(shi)(shi)嘗試(shi)過,無(wu)(wu)縫鋼(gang)(gang)管(guan)(guan)(guan)行業,都(dou)被這(zhe)(zhe)種(zhong)(zhong)管(guan)(guan)(guan)道(dao)(dao),優質使(shi)性能(neng)所蟄伏(fu)了(le)。比(bi)如說管(guan)(guan)(guan)道(dao)(dao),自身抗(kang)氧化(hua)性能(neng)。   一(yi)(yi)旦使(shi)環(huan)境中(zhong)溫度,幾乎達到了(le),管(guan)(guan)(guan)道(dao)(dao)所承受極限(xian),那管(guan)(guan)(guan)道(dao)(dao)使(shi)性能(neng),就會大幅度下降。如果使(shi)環(huan)境中(zhong)溫度,超過了(le)管(guan)(guan)(guan)道(dao)(dao),所承受極限(xian)。那管(guan)(guan)(guan)道(dao)(dao)就會,開始慢(man)慢(man)融化(hua),這(zhe)(zhe)不(bu)(bu)僅(jin)(jin)僅(jin)(jin)會影(ying)響(xiang)到,其(qi)(qi)他部(bu)件正常運轉。   那就是(shi)(shi)(shi)(shi)(shi)來,所使(shi)管(guan)(guan)(guan)道(dao)(dao)。其(qi)(qi)中(zhong)鋼(gang)(gang)成分,并不(bu)(bu)是(shi)(shi)(shi)(shi)(shi)一(yi)(yi)個理想數值。這(zhe)(zhe)導致(zhi)了(le)管(guan)(guan)(guan)道(dao)(dao),長(chang)時間暴露在室(shi)外,就很容易現生銹情況。這(zhe)(zhe)不(bu)(bu)僅(jin)(jin)僅(jin)(jin)為(wei)平時維護,帶來了(le)很多麻煩。同時這(zhe)(zhe)也得(de)管(guan)(guan)(guan)道(dao)(dao),使(shi)壽命(ming),也是(shi)(shi)(shi)(shi)(shi)比(bi)較短。每一(yi)(yi)次更換(huan)管(guan)(guan)(guan)道(dao)(dao),都(dou)會帶來一(yi)(yi)定損(sun)失。   因為(wei)無(wu)(wu)縫鋼(gang)(gang)管(guan)(guan)(guan)是(shi)(shi)(shi)(shi)(shi)一(yi)(yi)種(zhong)(zhong)具有(you)(you)中(zhong)空截(jie)面,周邊(bian)沒有(you)(you)接(jie)縫長(chang)條鋼(gang)(gang)材。無(wu)(wu)縫鋼(gang)(gang)管(guan)(guan)(guan)作為(wei)一(yi)(yi)種(zhong)(zhong)經濟使(shi)鋼(gang)(gang)材,他管(guan)(guan)(guan)道(dao)(dao)內部(bu)并不(bu)(bu)是(shi)(shi)(shi)(shi)(shi)實心鑄(zhu)造,在無(wu)(wu)縫鋼(gang)(gang)管(guan)(guan)(guan)內部(bu),有(you)(you)著(zhu)一(yi)(yi)部(bu)分是(shi)(shi)(shi)(shi)(shi)中(zhong)高空。這(zhe)(zhe)也就是(shi)(shi)(shi)(shi)(shi)說,本(ben)是(shi)(shi)(shi)(shi)(shi)鋼(gang)(gang)材一(yi)(yi)些地方,變成了(le)中(zhong)空截(jie)面。

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