Izinga le-DIN 17175 lesimbi esingenamthungo selokhu labhekwa njengelinye lamazinga abaluleke kakhulu ezinhlelo zokusebenza ezisebenza emazingeni okushisa aphezulu kulo lonke elaseYurophu nangale kwayo. Ekuqaleni lasungulwa yi-German Institute for Standardization, leli zinga lichaza izimo zokunikezwa kobuchwepheshe zamashubhu angenamthungo enziwe ngezinsimbi ezingezona ingxubevange kanye nezingxubevange okufanele zimelane namazinga okushisa aphezulu nezingcindezi. Onjiniyela kanye nochwepheshe bokuthenga bavame ukuphendukela ku-DIN 17175 lapho bedinga izixazululo zamapayipi ezinokwethenjelwa ezindaweni lapho ukuzinza kokushisa namandla emishini kungaxoxiswani ngakho. Leli zinga lihlanganisa amagreddi amaningi ensimbi, okuhlanganisa i-St35.8, i-St45.8, i-15Mo3, i-13CrMo44, kanye ne-10CrMo910, ngalinye lilungiselelwe amazinga athile okushisa kanye nemithwalo yengcindezi. Ukuqonda lawa magreddi kubalulekile ukuze kukhethwe into efanele yamabhoyila, ama-superheater, kanye nama-heat exchanger. E-Wuxi Hengzhihui Metal Materials Co., Ltd, sigxile ekuhlinzekeni nge-DIN 17175 isimbi esingenamthungo esihlangabezana nezidingo zokusebenza ezinzima kakhulu, siqinisekisa kokubili ukuphepha kanye nokusebenza kwesikhathi eside.

Izakhiwo zamakhemikhali kanye nezimpawu zomshini zepayipi lensimbi elingenasici le-DIN 17175 zichazwa ngokunembile ukuze kuqinisekiswe ukuziphatha okungaguquki ngaphansi kwengcindezi yokushisa kanye neyomshini. Isibonelo, izinga elidumile i-St35.8 liqukethe inani eliphezulu lekhabhoni elingu-0.17% namandla okudonsa asukela ku-360 kuya ku-480 MPa, kuyilapho i-13CrMo44 enamandla aphezulu ihlanganisa izengezo ze-chromium ne-molybdenum ezithuthukisa kakhulu ukumelana nokuguguleka emazingeni okushisa aphezulu. Lawa mapayipi akhiqizwa ngezinqubo zokushisa noma zokubanda ezilandelwa ukwelashwa okufanele kokushisa, okuqinisekisa ukwakheka okufanayo kwesakhiwo esingakwazi ukumelana nokuchayeka isikhathi eside kumusi womfutho ophezulu noma uketshezi lwenqubo. Ububanzi bezilinganiso bamapayipi angenasici e-DIN 17175 bukhulu ngendlela emangalisayo, ububanzi bangaphandle ngokuvamile busukela ku-10 mm kuya ngaphezu kuka-600 mm kanye nokujiya kodonga okusukela ku-1 mm kuya ngaphezu kuka-40 mm. Ukubekezelelana kobubanzi bangaphandle, ukujiya kodonga, nobude kulawulwa ngokuqinile ngokwezidingo zezinga, ngokuvamile kuhlangabezana noma kudlula okulindelwe amaphrojekthi obunjiniyela besimanje. Ngaphezu kwalokho, ukuqedwa kwendawo yalawa mapayipi kuphathwa ngokucophelela ukuze kuncishiswe izinkinga futhi kusize ukushisela okuthembekile nokufakwa ensimini. Esikhungweni sethu, yonke inqwaba yepayipi lensimbi elingenasici le-DIN 17175 iqinisekiswa ngokumelene nalezi zicaciso ngaphambi kokuba ishiye indawo yokugcina impahla.

Izinga ngalinye ngaphakathi komndeni we-DIN 17175 linenjongo ehlukile ezinhlelweni zokushisa nezingcindezi zezimboni. I-St35.8 ivame ukusetshenziselwa amashubhu abhayela ajwayelekile namashubhu e-superheater asebenza emazingeni okushisa afika ku-450°C, inikeza ukulingana okuhle kokushisekela nokuqina. Ezindaweni ezidinga kakhulu, i-13CrMo44 ne-10CrMo910 zinikeza ukusebenza okuphezulu emazingeni okushisa aphezulu ngenxa yezakhi zazo ezingxubevange, okuzenza zilungele ama-reactor e-petrochemical kanye nemigqa yomusi yezikhungo zikagesi. Izinga le-15Mo3, eline-molybdenum yalo, libaluleke kakhulu ngokumelana nokuhlaselwa yi-hydrogen emsebenzini we-hydrogen enengcindezi ephezulu. Lapho ukhetha into ye-DIN 17175, onjiniyela kufanele bacabangele hhayi kuphela izinga lokushisa eliphezulu lokusebenza kodwa futhi isikhathi sokuphila esilindelekile kanye nokuba khona kwezinto ezonakalisayo. Ithimba lethu lobuchwepheshe e-Wuxi Hengzhihui lingakusiza ukuthi uhlobanise izinga elifanele nephrofayela yakho yokushisa neyomshini eyingqayizivele yephrojekthi. Lolu lwazi olugxile ezingeni ngesinye sezizathu eziyinhloko ezenza amakhasimende ethu athembe i-Imikhiqizo ukunikezwa kokufakwa okubalulekile.

I-Wuxi Hengzhihui Metal Materials Co., Ltd yakhe idumela lokuhlinzeka nge-DIN 17175 seamless steel pipe eqhubeka nokwedlula okulindelekile kwekhwalithi, isekelwa ukuhlolwa kwangaphakathi okuqinile kanye nezitifiketi zamazwe ngamazwe. Sinezitifiketi ze-ISO 9001, API, kanye ne-PED ezibonisa ukuzibophezela kwethu ekukhiqizeni okuhle kakhulu nokulandeleka kusukela kuzinto zokusetshenziswa kuze kufike ekuthunyelweni kokugcina. Izinqubo zethu zokukhiqiza ezisezingeni eliphezulu zihlanganisa i-hot-rolling enembayo, ukwelashwa kokushisa okulawulwayo, kanye neziteshi zokuhlola ezizenzakalelayo ezithola ngisho nokungaqhubeki okuncane kakhulu odongeni lwepayipi. Ithimba lobuchwepheshe lenkampani liletha amashumi eminyaka wolwazi oluhlanganisiwe ekukhiqizeni amapayipi ensimbi, i-metallurgy, kanye nobunjiniyela bokusetshenziswa, linikeza amaklayenti isiqondiso esigunyaziwe mayelana nokukhethwa kwezinto zokusetshenziswa kanye nezinqubo ezinhle kakhulu zokufaka. Njengoba sisebenza ngqo njengomhlinzeki ohlanganiswe nefektri, singagcina ukulawula okuqinile esinyathelweni ngasinye sokukhiqiza, kusukela ekukhethweni kwe-billet kuze kufike ekupakishweni kokugcina. Lokhu kuhlanganiswa okuqondile kubangela umkhiqizo ongagcini nje ngokuhlangabezana nezinga le-DIN 17175 kodwa ovame ukuyedlula ngokungaguquguquki kanye nekhwalithi yobuso. Ukuze ufunde kabanzi mayelana nesizinda senkampani yethu kanye nezimiso zethu, sicela uvakashele i-Mayelana Nathi ikhasi.

Onjiniyela kanye nezazi zensimbi e-Wuxi Hengzhihui basebenza eduze namaklayenti ukubhekana nezinselelo ezithile eziphathelene nokuklanywa nokuthengwa kwamapayipi asezingeni lokushisa okuphezulu. Kungakhathaliseki ukuthi ukukhetha umjikelezo wokushisa okahle kakhulu wohlu oluthile lwepayipi lensimbi elingenasici le-DIN 17175 noma ukweluleka ngezinqubo zokushisela ezigcina izakhiwo zensimbi yomzali, ithimba lethu linikeza ukusekelwa okusebenzayo phakathi nomjikelezo wephrojekthi. Sisebenzisana njalo nabadayisi bakabhayela, osonkontileka be-EPC, nabaqhubi bezimboni zepetrochemical ukuthuthukisa izixazululo ezenzelwe wena ezithuthukisa kokubili ukusebenza kahle kanye nezindleko. Ukusekelwa kwethu kwezobuchwepheshe kudlulela ngalé kokuthengisa kokuqala, njengoba sinikeza amaphakethe emibhalo afaka izitifiketi zezinto, imibiko yokuhlola, namarekhodi okulandelela adingekayo ukuze kugunyazwe ngokomthetho. Le ndlela yokusebenzisana isizuzele ubudlelwano besikhathi eside nezinkampani ezisuka eYurophu, eNingizimu-mpumalanga ye-Asia, eMpumalanga Ephakathi, naseMelika. Ukuze uthole imininingwane eyengeziwe mayelana nenethiwekhi yethu yomhlaba wonke yabalingani, ungahlola i-Uzakwethu Webhizinisi ikhasi.

I-DIN 17175 ishubhu lensimbi elingenasici ibalulekile ezimbonini lapho ukuphepha nokuthembeka ezingeni lokushisa eliphezulu kuyinto ebaluleke kakhulu, kuhlanganise nokukhiqizwa kukagesi, ukucutshungulwa kwepetrochemical, nezinhlelo zamabhoyila ezimbonini. Ezitshalweni zikagesi ezishiswa ngamalahle kanye nezinhlanganisela zomjikelezo, lezi zhubhu zisetshenziselwa amashubhu e-superheater, amashubhu e-reheater, kanye nemigqa eyinhloko yomusi okufanele imelane nengcindezi engaphezu kuka-100 bar kanye namazinga okushisa angaphezu kuka-500°C. Umkhakha we-petrochemical uncike ezintweni ze-DIN 17175 kuma-reactor coils, amashubhu esithando, kanye nezinqwaba ze-heat exchanger ezibamba ama-hydrocarbon anolaka kanye nemifudlana ye-hydrogen enengcindezi ephezulu. Ama-heat exchanger ezindaweni zokucwenga uphethiloli nasezitshalweni zamakhemikhali azuza ekusebenzeni kahle kokudlulisa ukushisa nokumelana nokugqwala kwamanye amazinga e-alloy, okuqinisekisa ukudlulisa ukushisa okusebenzayo ezikhathini ezinde zokusebenza. Izitsha zengcindezi ezigcina noma ezicutshungula uketshezi olushisa kakhulu nazo zincike ekunembeni kobukhulu nasebuqiniseni bemishini yale mishubhu elingenasici. Ukuguquguquka kwesilinganiso se-DIN 17175 kusho ukuthi izinga elilodwa njenge-13CrMo44 lingasebenza izinhlelo eziningi, kusukela kuma-steam drums kuya emigqeni yokudlulisa, okwenza kube lula ukuphathwa kwempahla kumaphrojekthi amakhulu. Amakhasimende ethu ahlala ekhetha i-Wuxi Hengzhihui ngoba sinikeza osayizi abaqondile, amazinga, kanye nezitifiketi ezidingekayo kulezi zinsizakalo ezibalulekile.

Yonke imibhobho yensimbi engasebenzi kahle ye-DIN 17175 enikezwa yi-Wuxi Hengzhihui ihlolwa ngezindlela ezahlukahlukene zokuhlola ezingonakalisi nezonakalisayo ukuze kuqinisekiswe ukuthi ifanele ukusetshenziswa emazingeni okushisa aphezulu. Izindlela zokuhlola ezingonakalisi ezifana nokuhlolwa nge-ultrasound, ukuhlolwa nge-eddy current, nokuhlolwa nge-magnetic particle zisetshenziswa ukuthola iziphazamiso zangaphakathi nangaphezulu ezingase zilimaze ukusebenza ngaphansi kokushintsha kokushisa. Ukuhlolwa kwe-hydrostatic kwenziwa kumbhobho ngamunye ukuze kuqinisekiswe ukuthi uyakwazi ukumelana nengcindezi yokuhlola ebekiwe ngaphandle kokuvuza, okunikeza isilinganiso esiqondile sokuqina kwesakhiwo. Ukuhlolwa kwe-tensile, ukuhlolwa kwe-hardness, nokuhlolwa kwe-impact kwenziwa kumasampula avela eqoqweni ngalinye lokushisa ukuze kuqinisekiswe ukuthi izakhiwo zomshini zihambisana nezidingo zezinga elisebenzayo ngaphakathi kwe-DIN 17175. Senza futhi ukuhlaziywa kokwakheka kwamakhemikhali sisebenzisa i-optical emission spectrometry ukuze siqinisekise ukuthi amazinga ezakhi ze-carbon, i-silicon, i-manganese, i-phosphorus, i-sulfur, i-chromium, i-molybdenum, nezinye izakhi asemkhakheni obekiwe. Yonke imiphumela yokuhlola ibhalwa kuzitifiketi zokuhlola ezilandelwayo ezingathunyelwa kubasebenzisi bokugcina kanye neziphathimandla ezilawulayo. Ukuze uhlole izitifiketi zethu zekhwalithi ngokuningiliziwe, sicela uvakashele i-Isitifiketi ikhasi.

Kumaphrojekthi adinga amazinga okuqinisekisa aphezulu kakhulu, singahlela izivivinyo ezengeziwe ezifana nokuhlolwa kwe-tensile yokushisa okuphezulu, ukuhlolwa kokuqhekeka kwe-creep, noma ukuhlolwa kokumelana nokugqwala okuhambisana nendawo ethile yokusebenza. Lezi zinqubo ezengeziwe zibaluleke kakhulu lapho i-DIN 17175 seamless steel pipe izochayeka ekulayisheni okushisayo okuphindaphindayo, emkhathini wegesi eline-asidi, noma ekusebenzeni isikhathi eside emikhawulweni ephezulu yokushisa yegredidi ekhethiwe. Ilabhorethri yethu yokuhlola inemishini yesimanje esivumela ukulingisa izimo zokusebenza nokuqinisekisa ukuziphatha kwempahla ngaphambi kokuba ipayipi lifakwe. Siphinde sinikeze izinsizakalo zokuhlola kwabantu besithathu ezivela emikhakheni yokuhlukanisa eyaziwayo uma kuceliwe, siqinisekisa ukuthi izicaciso zamaphrojekthi zamazwe ngamazwe ziyagcwaliseka ngokuphelele. Lokhu kuzinikela ekuqinisekiseni ikhwalithi okuphelele kwenze i-Wuxi Hengzhihui yaba umthombo othembekile we-DIN 17175 seamless steel pipe kwamanye amaphrojekthi ezimboni adinga kakhulu emhlabeni.

Elinye lamathuba ayinhloko okusebenza ngqo nomhlinzeki ohlanganiswe nefektri njenge-Wuxi Hengzhihui ukuthola amanani ancintisanayo abonisa izindleko zangempela zokukhiqiza ngaphandle kokwengezwa kwamanani yiziphakathi. Imodeli yethu yamanani efeftri ngqo isivumela ukuthi sinikeze imigomo evumayo ku-DIN 17175 ishubhu lensimbi elingenasici ngenkathi sigcina amazinga aphezulu kakhulu ekhwalithi, okusenza sibe yisinqumo esingabizi kakhulu kuzo zombili izinhlelo ezincane nezinhlelo ezinkulu zokuthenga. Siyaqonda ukuthi izabelomali zamaphrojekthi zivame ukuba nzima, futhi sisebenza ngokucacile namaklayenti ukunikeza izilinganiso ezinemininingwane echaza izindleko zezinto, izindleko zokucubungula, nezindleko zokuthumela. Inethiwekhi yethu yezokuthutha esebenzayo isakazekela e-Asia, eYurophu, eMpumalanga Ephakathi, naseMelika, okusivumela ukuthi sithumele ama-oda amapayipi ngokushesha ngolwandle, ngomoya, noma ngezinto zokuthutha ezihlanganisiwe. Sigcina amazinga anele esitokwe samasayizi namazinga ajwayelekile, okunciphisa kakhulu isikhathi sokulinda ezidingweni eziphuthumayo. Ekukhiqizeni okukhulu, izinhlelo zethu zokukhiqiza zilungiselelwe ukuhambisana nesikhathi sakho sephrojekthi, kunciphisa isikhathi sokungasebenzi nezindleko zokugcina impahla. Ukuqala, vele uvakashele i-Ikhaya ikhasi bese uxhumana nethimba lethu lezokuthengisa ukuze uthole isilinganiso esenzelwe wena.

I-Wuxi Hengzhihui idlula ukuhlinzeka okujwayelekile ngokunikeza izinsizakalo eziningi zokwenza ngokwezifiso eziqinisekisa ukuthi wonke amapayipi ensimbi angasebenzi e-DIN 17175 ahambisana nezidingo eziqondile zobuchwepheshe nezokusebenza zohlelo lwakho. Singanikeza amapayipi anobude obunqunyiwe, ukulungiselelwa kwemikhawulo yangaphakathi okwezifiso (ama-beveled, anentambo, noma amaphethelo alula), kanye nemijikelezo yokwelashwa okushisa ekhethekile ethuthukisa izakhiwo ezithile zempahla. Ithimba lethu lobuchwepheshe lisebenza nawe ukuthuthukisa izixazululo ezilungiselelwe izimo eziyingqayizivele zengcindezi, izinga lokushisa, noma ukugqwala, kufaka phakathi izinsizakalo ezengeziwe njengokusika ngokunemba, ukugoba, nokusebenzisa i-coating. Ukusekelwa kwangemva kokuthengisa okusheshayo kuyisisekelo sofilosofi yethu yamakhasimende; siphendula imibuzo, sixazulule izinkinga, futhi sinikeze izincazelo zobuchwepheshe ngokushesha ukugcina iphrojekthi yakho isendleleni. Sikholelwa ukuthi ukuxhumana okuqinile kanye nensizakalo esabelayo kubaluleke kakhulu njengekhwalithi yomkhiqizo, ikakhulukazi lapho sibhekene nezingxenye ezibalulekile zengqalasizinda. Noma ngabe udinga ubude bepayipi elilodwa ukuze ushintshe noma izinkulungwane zamamitha ephrojekthi entsha yokwakha, siphatha wonke ama-oda ngokuzinikela okufanayo ekunembeni nasekufikeni ngesikhathi. Ukuze uthole izibuyekezo zakamuva zenkampani nezindaba zemboni, ungabheka futhi i-Izindaba ikhasi.

I-DIN 17175 ishubhu lensimbi elingenasici ihlala iyingxenye eyinhloko yezinhlelo zokufaka amapayipi ezimbonini zokushisa okuphezulu emhlabeni wonke, futhi ukukhetha umhlinzeki ofanele kubalulekile empumelelweni yephrojekthi, ukuphepha kokusebenza, kanye nokonga izindleko zesikhathi eside. I-Wuxi Hengzhihui Metal Materials Co., Ltd ihlanganisa ulwazi olujulile lobuchwepheshe, ukuqinisekiswa kwekhwalithi okuphelele, amanani ancintisanayo asefekthri, kanye nokusekelwa kwamakhasimende okusheshayo ukuletha amapayipi ahlangabezana nezicaciso eziqine kakhulu. Ukuzibophezela kwethu ekuthuthukiseni okuqhubekayo nokwaneliseka kwamakhasimende kusibeke njengozakwethu okhethwayo wabakhiqizi bama-boiler, izindawo zepetrochemical, kanye nezinkampani zokuphehla ugesi emhlabeni wonke. Sikumema ukuthi uhlole uhla oluphelele lwezinketho zethu zeshubhu lensimbi elingenasici le-DIN 17175 futhi uxhumane neqembu lethu nganoma yimiphi imibuzo mayelana nokukhethwa kwezinto, amanani, noma izikhathi zokulethwa. Ake sikunikeze isilinganiso esenziwe ngokwezifiso esibonisa inani lokuthenga kumhlinzeki oqinisekisiwe, onolwazi, futhi ozinikele. Xhumana nathi namuhla futhi uzwe umehluko we-Wuxi Hengzhihui kuphrojekthi yakho elandelayo yokufaka amapayipi okushisa okuphezulu.