Ukumelana nokugqwala kwepayipi lensimbi elashukumisa eChina
Ngenxa yokuthi ipayipi lensimbi engenamthungo elidiphu elidiphu liyi-hot-dip galvanized, inani lamagalati liphezulu kakhulu. Ugqinsi olumaphakathi longqimba lukathayela lungaphezu kwama-microns angu-65, futhi ukumelana nokugqwala kwalo kuhluke kakhulu kulokho kwepayipi elinothayela lediphu elishisayo. Abakhiqizi bamapayipi othayela abavamile bavunyelwe ukusebenzisa amapayipi abandayo njengamapayipi amanzi nawegesi. Isendlalelo esivundisiwe sepayipi lensimbi elibandayo liyisingqimba se-electroplating, futhi ungqimba lwezinc luhlukaniswa ne-substrate yepayipi lensimbi. Ungqimba lwe-zinc luncane, futhi ungqimba lwe-zinc luvele lunamathele ku-matrix yepayipi yensimbi, okulula ukuwa. Ngakho-ke, ukumelana nokugqwala kwayo kubi. Ezindlini ezintsha, akuvunyelwe ukusebenzisa amapayipi ensimbi abandayo njengamapayipi ensimbi anikezela ngamanzi. Ngemuva kokukhetha, amapayipi ensimbi angenamthungo e-API ahlanzwa nge-ammonium chloride noma i-zinc chloride isixazululo samanzi noma i-ammonium chloride ne-zinc chloride exutshwe nethangi lesisombululo esinamanzi. Ukuze kuqinisekiswe ikhwalithi, i-electro galvanizing (i-cold plating) ayisetshenziswa kakhulu. Yilabo kuphela amabhizinisi amancane anemishini emincane nemidala esebenzisa i-electro galvanizing, yiqiniso, intengo yabo ishibhile. UMnyango Wezokwakha usuqede ngokusemthethweni ipayipi likathayela elibandayo elibuyela emuva, elingeke lifakwe ugesi ngogesi esikhathini esizayo. Iwukwenza insimbi encibilikisiwe isabelane ne-iron matrix ukuze ikhiqize ungqimba lwengxubevange, ukuze kuhlanganiswe i-matrix kanye nokunamathela. I-Hot dip galvanizing iwukucwilisa ipayipi lensimbi kuqala, ukuze kukhishwe i-iron oxide ebusweni bepayipi lensimbi, bese iyithumela ethangini lediphu elishisayo. I-hot dip galvanizing inezinzuzo zokuhlanganisa iyunifomu, ukunamathela okuqinile nempilo ende yesevisi. 1. Iyunithi yepuleti elimaphakathi: ikhiqiza ikakhulukazi amapuleti abanzi futhi awugqinsi ukuze kukhiqizwe amapayipi ashiselwe i-arc angaphansi kwamanzi. Amapayipi ashiselwe i-arc angaphansi kwe-longitudinal anekhwalithi ethembekile futhi asetshenziswa kakhulu emgqeni oyinhloko wokudlulisa uwoyela negesi ephezulu yokucindezela.
I-Steckel Mill:Isigayo se-Steckel sihlanganisa umshini wokugaya ophindaphindayo kanye nomshini wokuqeda ophindaphindayo ongu-4. Izigayo ezimbili zamakhoyili ashisayo zifakwe emigqeni yokuthutha emaceleni omabili omshini wokuqedela. Ithebula le-roller eliphumayo ngokuvamile lihlanganisa isistimu yokupholisa i-laminar kanye nesiteshi sokubopha. Emshinini wokugaywa we-steckel, umlando we-thermomechanical wabo bonke ubude bokufakwa kwepayipi lensimbi engagqwali elinyathela indololwane uyashintsha kakhulu, ikakhulukazi ekukhiqizeni izifakelo zamapayipi endololwane ensimbi engagqwali encane, okuzothinta kakhulu idigri ye-recrystallization, ukukhula okusanhlamvu kanye nemvula lapho kuqedwa. isigayo, futhi kuholele ezinguqukweni ezinqala kusakhiwo esincane sokugcina kanye nezakhiwo zabo bonke ubude bensimbi engagqwali yokufakwa kwezigxivizo zamapayipi endololwane
Isigayo esiqhubekayo:okuhlanganisa 1 Steckel mill kanye 5 finishing Mills. Kumshini wokugaya oqhubekayo, ukuginqika okushisayo kokufakwa kwamapayipi kumaphasi okuqeda akuvamile ukusuka komunye umkhawulo kuya komunye. Isikhathi esiphakathi kwamaphasi emshinini wokuqeda ngokuvamile singaphansi kuka-3S.
I-CSP yokusakaza nokugingqika okuqhubekayo:ngensimbi ephansi ye-carbon manganese equkethe i-niobium, i-vanadium ne-titanium composite I-Microalloying kulayini wokukhiqiza we-CSP, ukugingqeka okulawulwayo okufanele, ukupholisa okulawulwayo kanye nezinqubo zokupholisa kungaqinisekisa ukuthi izakhiwo zemishini kanye nesakhiwo esincane sokufakwa kwamapayipi kuhlangabezana nezimfuneko zobuchwepheshe zendololwane yesimanje ye-X60 stainless steel stamping kanye umkhuba wokuthuthukiswa kokufakwa kwepayipi le-elbow stamping yensimbi engagqwali. Ulayini wokukhiqiza oqhubekayo we-CSP we-CSP uthuthukise okokufakwa kwezigxivizo zendololwane zensimbi engagqwali engu-X60, kuyilapho abanye abakhiqizi be-CSP e-United States nakwamanye amazwe bathuthukise futhi bakhiqiza okokufakwa kwezigxivizo zensimbi engagqwali okusezingeni eliphezulu X60, X65 ngisho no-X70. Isici senqubo ukuthi kukhona ukuhlukaniswa okumaphakathi ekusakazeni okuqhubekayo kwe-slab encane. Ukuqedwa kokuhlukaniswa okumaphakathi ekuqhutshweni kwe-slab encane eqhubekayo ngepayipi lensimbi engenamthungo kuyinkinga eyinhloko yobuchwepheshe ukuze kuthuthukiswe ikhwalithi yokufakwa kwezigxivizo zendololwane zensimbi engagqwali. Amapuleti asetshenziselwa ukugxiviza indololwane yensimbi engagqwali ikakhulukazi asetshenziswa i-A3 kanye ne-16Mn ekhiqizwe u-Angang nabanye abakhiqizi ngeminyaka yawo-1960 nawo-1970. Ngokukhula kobubanzi bepayipi nokucindezela kokudlulisela, Amandla epuleti lokufaka ipayipi awakwazi ukuhlangabezana nezidingo. Ngemuva kweminyaka yawo-1980, wonke amafekthri ezingxenye zamapayipi ashiselwe uphethiloli aqala ukusebenzisa amapuleti ensimbi epayipi akhiqizwa ngokwezindinganiso ze-API yaseMelika. Ngaleso sikhathi, ngenxa yobuchwepheshe obungavuthiwe babakhiqizi bamapuleti be-stainless stamping steel stamping, amapuleti angenisiwe ayesetshenziswa kakhulu.
