Amaphayiphu omfutho ophezulu we-boiler ayisigaba esikhethekile samaphayiphu ensimbi angenamthungo aklanyelwe ukumelana nezinga lokushisa eliphezulu, izingcindezi eziphakeme zangaphakathi, kanye nezimo ezinamandla ezitholakala emisebenzini ebalulekile yezimboni. Lawa maphayiphu asebenza njengomgogodla wezikhungo zokuphehla ugesi, izimboni zamakhemikhali, ama-heat exchanger, ama-superheater, nama-reheater, lapho ukwehluleka kwanoma iyiphi into kungaholela emiphumeleni eyinhlekelele. Ngokungafani namaphayiphu ajwayelekile, amaphayiphu omfutho ophezulu we-boiler kufanele ahlangabezane nezidingo eziqinile zemishini nezinsimbi ukuze aqinisekise ukuthembeka kwesikhathi eside ngaphansi kwezingcindezi ezishintshashintshayo zokushisa nezomshini. Isidingo somhlaba wonke salawa maphayiphu siya sikhula njengoba ingqalasizinda yamandla ikhula futhi izimboni ezikhona zifuna ukuthuthukiswa ukuze zisebenze kahle futhi zinciphise ukukhishwa kwezinto ezingcolisayo. Abakhiqizi abafana ne-Wuxi Hengzhihui Metal Materials Co., Ltd. batshale imali enkulu emandleni okukhiqiza athuthukile ukuze bakhiphe amaphayiphu ahlangabezana noma adlule izidingo zamakhodi omhlaba. Ukuqonda konke ukucaciswa kwemibandela—kusukela ezigabeni zezinto ezisetshenziswayo kuya emikhawulweni yobukhulu—kubalulekile ochwepheshe bokuthenga kanye nonjiniyela abaphethe ubuqotho bezimboni. Lesi sihloko sinikeza ukuhlolwa okuningiliziwe kokucaciswa kwamaphayiphu omfutho ophezulu we-boiler, amazinga ezinto ezisetshenziswayo, izindlela zokukhiqiza, kanye nezinqubo zokuqinisekisa ikhwalithi, kugxilwe emikhiqizweni ye-Wuxi Hengzhihui.

Ukukhetha impahla efanele yamashubhu e-boiler enomfutho ophezulu yisinqumo esibaluleke kakhulu enqubweni yokuklama nokuthenga, ngoba sithinta ngqo ukuphepha, impilo yokusebenza, nezindleko zokusebenza. Izinto ezisetshenziswa kakhulu zihlukaniswa ngezigaba ezintathu ezinkulu: insimbi yekhabhoni, insimbi ye-alloy, nensimbi engagqwali, ngayinye ilawulwa yizinga elithile le-ASTM/ASME. Izinhlobo zensimbi yekhabhoni ezifana ne-ASTM A106 Grade B, A179, A192, ne-A210 zivame ukusetshenziswa ezingxenyeni zomshini we-boiler ezinamazinga okushisa aphansi kanye nomfutho ophakathi, lapho kugcizelelwa khona ukonga kanye nokuhambisana nokushisela. Lezi zinhlobo zinamandla okudonsa anele kanye nokumelana nokukhasa (creep resistance) kuze kufike ku-425°C, okwenza zifaneleke kuma-economizer, izindonga zamanzi, namashubhu akhiqiza umusi. Emazingeni okushisa aphezulu kanye nomfutho omkhulu, izinhlobo zensimbi ye-alloy ezivela ku-ASTM A213 T/P series (T11, T22, T91, T92) zinamandla aphakeme okumelana nokukhasa nokugqabhuka (creep rupture strength) kanye nokumelana nokugqwala (oxidation resistance), okuvumela amazinga okushisa okusebenza angaphezu kuka-600°C. I-T91, ngokwesibonelo, isiphenduke impahla ekhethwayo yamashubhu e-superheater ne-reheater ezikhungweni zanamuhla ezinamandla aphezulu kakhulu (ultra-supercritical power plants) ngenxa yokuhlanganisa kwayo okuhle kwamandla okushisa aphezulu nokumelana nokugqwala. Izinhlobo zensimbi engagqwali, ezihlanganisa i-TP304/L, TP316/L, 310S, kanye nezinhlobo ezahlukene zensimbi engagqwali eyi-duplex, zikhethwa lapho indawo yokusebenza ibandakanya ukuhlaselwa okunamandla ngamakhemikhali noma amazinga okushisa aphezulu kakhulu afinyelela ku-700°C. Inhlobo ngayinye yempahla kufanele inikezwe ngomkhondo ogcwele oya endaweni yayo yokukhiqiza (heat lot) futhi ihambisane nesitifiketi sokuhlolwa kwempahla (MTC) esiqinisekisa ukwakheka kwamakhemikhali, izakhiwo zemishini, kanye nemiphumela yokuhlolwa okungenamonakalo (nondestructive examination). I-Wuxi Hengzhihui ithola futhi igcina uhla olubanzi lwalezi zinto eziqinisekisiwe ukuze iqinisekise ukuthi amakhasimende athola ngqo uhlobo olucaciselwe umklamo wawo we-boiler nezimo zokusebenza.

Amashubhu omfutho ophezulu we-boiler akhiqizwa ngobubanzi obuhlukahlukene be-outer diameter (OD) kanye nobukhulu bodonga ukuze kuhlangatshezwane nezingcindezi ezahlukene zomklamo, amazinga okugeleza, kanye nezidingo zokudlulisa ukushisa ezingxenyeni ezahlukene ze-boiler. Ububanzi obujwayelekile be-OD busuka kumamilimitha angu-6 emgqeni wamathuluzi namasampula kuze kufike kumamilimitha angu-1240 kumakhanda amakhulu obubanzi namapayipi amakhulu omusi. Ubukhulu bodonga buhluka kumamilimitha angu-1 kuya kumamilimitha angu-50, lapho izindonga eziwugqinsi zidingeka ezigabeni ezinomfutho ophezulu kakhulu njengendawo yokuphuma ye-primary superheater kanye ne-final reheater outlet. Ukukhethwa kwe-OD nobukhulu bodonga kufanele kulandele izibalo zomklamo ngokwamakhodi afana ne-ASME Section I noma i-EN 12952, ezibheka ingcindezi yangaphakathi, ukukhuthazela okunikeziwe emazingeni okushisa okusebenza, ukugqwala okunikeziwe, kanye nokubekezelela ekukhiqizeni. Ngaphezu kobude obuqondile, amashubhu agobile u-U ayindlela ebalulekile yomkhiqizo ekusetshenzisweni kwe-heat exchanger ne-boiler, evumela izigaxa zamashubhu ezihlangene ezikhulisa indawo yokudlulisa ukushisa ngaphakathi kwe-shell enomkhawulo. Amashubhu agobile u-U akhiqizwa ngama-bend radii anembile, imikhawulo ye-ovality, kanye nemikhawulo yokuncipha kodonga ukuze kuqinisekiswe ukuthi ingxenye egobile igcina amandla anele ngesikhathi sokusebenza. I-Wuxi Hengzhihui inikela ngamashubhu omfutho ophezulu we-boiler aqondile nagogobile u-U anobukhulu obuqinile, okusekelwa ukulinganiswa kobukhulu be-ultrasonic kanye nezilinganiso zephrofayili kulo lonke ucezu. Impahla yenkampani ihlanganisa osayizi abajwayelekile abadingwa ngosonkontileka bezikhungo zamandla kanye nezinkampani zobunjiniyela be-petrochemical, kuyilapho ubukhulu obungokwezifiso bungakhiqizwa nge-hot rolling, cold drawing, noma izinqubo zokwandisa ukushisa.

Ukukhiqiza amashubhu e-boiler anomfutho ophezulu asebenza ngokuthembekile ngaphansi kwezidingo ezinzima zokusebenza kudinga ukulandelana kokukhiqiza okulawulwa ngokuqinile okuqala ngezinto ezingavuthiwe eziphakeme futhi kuqhubeke ngokubunjwa okushisayo, ukuqedwa okubandayo, ukwelashwa ngokushisa, nokuhlolwa. Iningi lala mashubhu likhiqizwa kusetshenziswa inqubo ye-hot-rolling seamless, lapho i-billet eyindilinga eqinile ifudunyezwa ize ifike ezingeni lokushisa lokukhanda, ibhobozwe ukuze kwenziwe igobolondo elingenalutho, bese iyandiswa futhi ilinganiswe ngochungechunge lwezitendi zokugingqika. Le nqubo iletha ukwakheka kwe-grain okufanayo kanye nobukhulu bodonga obungaguquki obudingekayo ukuze kugcinwe umfutho. Emabhodleleni amancane noma ezindongeni ezincanyana, kusetshenziswa ukudonswa okubandayo ngemva kokugingqika okushisayo ukuze kutholakale ukulingana okunembile kanye nokuqedwa kwendawo okuthuthukisiwe. Ukunwetshwa ngokushisa, inqubo ekhethekile yamashubhu anobubanzi obukhulu nezindonga ezinzima, kusebenzisa ukubunjwa kwangaphakathi okunomfutho ophezulu ukuze kunwetshwe ishubhu lifinyelele ku-OD oyifunayo kuyilapho kugcinwa ukugxila. Kuso sonke isinyathelo, izilawuli eziwumgogodla zenqubo ezifana nokuqapha izinga lokushisa, ukulawulwa kwesivinini sokugingqika, nokuphathwa kokugcoba kuyasetshenziswa ukuze kugwenywe ukukhubazeka okufana nama-laps, ama-folds, nama-laminations. Ngemva kokubunjwa, wonke amashubhu e-boiler anomfutho ophezulu enza uchungechunge lokuhlolwa okungabhubhisi (NDE), okuhlanganisa i-eddy current, i-ultrasonic, nokuhlolwa kwe-hydrostatic, ukuze kuqinisekiswe ukuthi awukho ukungaqhubeki kwevolumu nendawo. I-Wuxi Hengzhihui isebenzisa imigqa yayo yokukhiqiza ngezinhlelo zokulawula ezizenzakalelayo kanye nokuloga kwedatha ngesikhathi sangempela ukuze iqinisekise ukuthi wonke amashubhu aphuma endaweni yokusebenza ahlangabezana nezidingo eziqinile zamakhodi e-ASTM/ASME. Onjiniyela be-metallurgical abanolwazi benkampani babuyekeza imingcele yenqubo nsuku zonke ukuze bathuthukise isivuno kuyilapho begcina amazinga aphakeme kakhulu ekhwalithi adingwa umkhakha wokukhiqiza ugesi.

Ukwelashwa ngokushisa kuyisinyathelo esibalulekile ekukhiqizeni amapayipi amakhanda aphezulu e-boiler, ngoba kuguqula ukwakheka okwenziwe kube yilokho okunamandla adingekayo, ukuqina, nokumelana nokuguguleka emsebenzini wokushisa okuphezulu. Umjikelezo othile wokwelashwa ngokushisa uncike ezingeni lezinto: amapayipi ensimbi ekhabhoni ngokuvamile athola ukujwayeleka noma ukuthambisa, kuyilapho izinga lensimbi engxubevange nensimbi engagqwali zidinga izinhlelo eziyinkimbinkimbi ezifana nokucisha nokuthambisa, noma ukuthambisa ngesixazululo okulandelwa ukupholisa okusheshayo. Ukujwayeleka kuhilela ukushisisa ipayipi cishe ku-900°C bese kupholisa emoyeni, okuhlanza ukwakheka kwezinhlamvu futhi kuthuthukise ukufana kwezakhiwo zemishini. Ngensimbi engxubevange ephansi efana ne-T11 ne-T22, ukuthambisa okugcwele emazingeni okushisa angaphansi kokubalulekile kukhulula izingcindezi ezisele ezivela ekudonsweni okubandayo futhi kuqinisekise ukuzinza kobukhulu ngesikhathi sokugoba nokushisela okulandelayo. Ukucisha nokuthambisa kusetshenziswa ezingeni elinamandla aphezulu njenge-T91, lapho ipayipi lishiswa cishe ku-1050°C, lipholiswe ngokushesha emanzini noma emafutheni, bese lithambisa ku-730–780°C ukuze kukhishwe ama-carbide amahle anikeza amandla amangalisayo okuguguleka. Amapayipi ensimbi engagqwali athola ukuthambisa ngesixazululo ku-1040–1150°C okulandelwa ukupholisa okusheshayo ukuze kuncibilike ama-chromium carbide futhi kugcinwe ukumelana nokugqwala emsebenzini. Wonke umshini wokwelapha ngokushisa osetshenziswa yi-Wuxi Hengzhihui ulinganiswa ngokwezindinganiso ze-ASTM futhi uhlonyiswe ngama-thermocouple amaningi ukuze kuqinisekiswe ukusatshalaliswa okufanayo kwezinga lokushisa kulo lonke ithrafikhi. Inkampani igcina amarekhodi anemininingwane okwelashwa ngokushisa kusigaba ngasinye, okuhlanganisa amashadi esikhathi nezinga lokushisa kanye nokuhlola ubulukhuni, ukuze inikeze ukulandeleka okugcwele nokuzethemba kubasebenzisi bokugcina ezinhlelweni ezibalulekile ze-boiler.

Isimo esingaphezulu sidlala indima ebalulekile ekusebenzeni kwesikhathi eside kwamashubhu omoya ophezulu (high pressure boiler tubes), njengoba i-scale eyinsalela, ukugqwala, noma ukungcola kungasheshisa ukugqwala ngaphansi kwesidiphozi (corrosion under deposit - CUD) futhi kunciphise ukusebenza kahle kokudlulisa ukushisa. Lapho kuqedwa ukwakheka okushisayo nokwelashwa ngokushisa, amashubhu ngokuvamile ambozwe ngongqimba lwe-iron oxide scale okumele isuswe ngaphambi kokuhlolwa kokugcina nokuthunyelwa. I-Wuxi Hengzhihui isebenzisa inqubo yokulungisa ingaphezulu enezigaba eziningi ehlanganisa ukuhlanza ngemishini kusetshenziswa amabhulashi ocingo nokuqhuma kwe-abrasive, okulandelwa ukucwiliswa ku-asidi (acid pickling) emanzini e-hydrochloric noma i-sulfuric acid elawulwayo ukuze kuncibilike i-scale nokugqwala okusele. Ngemva kokucwiliswa ku-asidi, amashubhu ahlanzwa kahle ngamanzi anomfutho ophezulu bese e-passivated ukuze akhe umkhumbi omncane we-oxide ovikelayo omelana nokugqwala okusheshayo ngesikhathi sokugcinwa nokuthuthwa. Kwezinye izinhlelo zokusebenza ezidinga ingaphakathi elihlanzeke kakhulu, njengama-boiler ahlanza kanye (once-through boilers) noma ama-high-pressure feedwater heaters, ukususwa kokugqwala ngokufafaza (spray rust removal) kusetshenziswa imishayo yamanzi enesivinini esikhulu ehlanganiswe nezivimbeli zokugqwala (corrosion inhibitors) kusetshenziswa emgodini weshubhu. Inkampani iphinde inikeze i-shot blasting ne-phosphating njengezindlela zokwelapha ingaphezulu ezingakhethwa ukuze kuthuthukiswe ukunamathela kopende noma kunikezwe ukuvikelwa kokugqwala kwesikhashana emashubhini ahanjiswa ngomkhumbi ibanga elide. Isinyathelo ngasinye sokulungisa ingaphezulu siqashwa ngabasebenzi abalawula ikhwalithi abahlola amazinga okuhlanzeka besebenzisa izindinganiso ezibonakalayo, ukuhlola ngokusula, kanye nezilinganiso ze-profilometer zobunzima bengaphezulu. Ukususwa kokugqwala okufanele nokulungiswa kwengaphezulu akugcini nje ngokwandisa impilo yokusebenza yamashubhu omoya ophezulu kodwa futhi kuvimbela ukungcoliswa kwamakhemikhali amanzi e-boiler, okubalulekile ekugcineni ubumsulwa bomhwamuko nasekuvimbeleni ukungcola kwama-turbine blade.

I-Nkampani i-Wuxi Hengzhihui Metal Materials Co., Ltd. yakhe idumela layo njengomhlinzeki othembekile wamashubhu e-high pressure boiler ngesisekelo sokuqinisekiswa kwekhwalithi okuqinile okuthinta zonke izigaba kusukela ekutholeni izinto ezingavuthiwe kuze kube ukuthunyelwa kokugcina. Le nkampani isebenzisa uhlelo lokuphatha ikhwalithi oluqinisekisiwe nge-ISO 9001, futhi izindawo zayo zokukhiqiza zigunyazwe yi-API 5L kanye ne-EU PED, okubonisa ukuthobela amazinga omhlaba wonke afunayo. Yonke i-coil noma i-billet engenayo iyaqinisekiswa ngesitifiketi sesehlakalo futhi ihlolwe ukwakheka kwamakhemikhali kusetshenziswa i-optical emission spectrometry ngaphambi kokukhishwa emkhiqizweni. Ngesikhathi sokukhiqiza, ukuhlolwa okwenziwa ngesikhathi sokukhiqiza kwenziwa ezindaweni ezibalulekile zokulawula okuhlanganisa ukubhoboza, ukugoqa, ukwelapha ukushisa, nokuqondisa ukuze kutholwe ukuphambuka kusenesikhathi futhi kuvinjwe izinto ezingahambisani nokucacisiwe ukuthi zingaqhubekela phansi. Amashubhu e-high pressure boiler aqediwe ahlolwa ngenqwaba yezivivinyo: ukuhlolwa kwe-tensile emazingeni okushisa asekamelweni naphakeme, ukuhlolwa kwe-flattening, ukuhlolwa kwe-flaring, ukuhlolwa kokuqina, kanye nokuhlolwa komthelela lapho kudingwa khona yimibandela. Ukuhlolwa okungabhubhisi kuhlanganisa ukuhlolwa kwe-ultrasonic okungu-100% wamaphutha avundlile naphambene, ukuhlolwa kwe-eddy current wamaphutha angaphezulu, kanye nokuhlolwa kwengcindezi ye-hydrostatic emazingeni engcindezi abalwe ukuthi aphindwe izikhathi eziyi-1.5 kunomklamo wengcindezi. Ithubhu ngalinye limakwe ngokucacile ngenombolo yokushisa, izinga, usayizi, kanye nesitembu sokuhlola, futhi lihambisana ne-MTC enemininingwane ehlanganisa yonke imiphumela yokuhlola kanye nolwazi lokulandeleka. I-Wuxi Hengzhihui iphinde inikeze izinsiza zokuhlola ezenziwa abantu besithathu ezivela ezikhungweni ezinjenge-SGS, BV, noma i-Lloyd's ngokwesicelo sekhasimende, inikeze isendlalelo esengeziwe sokuqinisekisa ezinhlelweni ezibalulekile zomsebenzi. Ukuze uthole imininingwane eyengeziwe mayelana nezitifiketi zenkampani kanye nenqubomgomo yekhwalithi, sicela uvakashele ikhasi le-Certificate kuwebhusayithi esemthethweni.

Ukukhetha umphathiswa ofanele wamapayipi e-boiler anomfutho ophezulu yisinqumo esinamasu esithinta izikhathi zomsebenzi, ukwethembeka kokusebenza, kanye nezindleko zobunikazi eziphelele empilweni yesikhungo samandla noma indawo yamakhemikhali. I-Wuxi Hengzhihui iyahlukanisa ngokuhlanganisa ubuchwepheshe obujulile bomkhiqizo, impahla eningi, amanani ancintisanayo, kanye nendlela egxile kumakhasimende ethole ukwethenjwa kwamakhasimende emazweni angaphezu kwama-20. Onjiniyela bezokuthengisa benkampani basebenza eduze nekhasimende ngalinye ukuhlonza uhlobo olunembile lwezinto, usayizi, kanye nezidingo zokuqinisekisa, benikeza ezinye izindlela noma izinto ezingcono uma zinikeza inani elingcono noma ukusebenza. Impahla igcinwa emazingeni amasu ukusekela izinhlelo eziphuthumayo zomsebenzi, ngosayizi abadumile be-A179, A192, A210, kanye ne-A213 T11/T22/T91 etholakala ukuthunyelwa ngosuku olufanayo noma ngosuku olulandelayo kusuka endaweni yethu yokugcina impahla. Ngenxa yokuthi i-Wuxi Hengzhihui ilawula uchungechunge lokuhlinzeka kusukela embonini kuya ekulethweni, inganikeza amanani ancintisanayo ngokungaguquki ngaphandle kokuyekethisa ikhwalithi noma ukulandeleka. Inkampani futhi inikeza izinsiza ezinikeza inani elengeziwe njengokusika, ukugoba, ukugoba u-U, kanye nokupakisha okwenziwe ngokwezifiso ukunciphisa izindleko zokulungiselela inkundla yekhasimende. Ukulethwa ngesikhathi kuyisilinganiso esiyisisekelo sokusebenza, namathimba ezinto zokuhamba anolwazi ekuhleleni ukuthunyelwa kwe-LCL ne-FCL emachwebeni omhlaba wonke, nokuqinisekisa ukuthi imibhalo ehlanganisa i-MTC, i-bill of lading, kanye nesitifiketi semvelaphi iphelele futhi inembile. Ukuze uhlole uhla oluphelele lwemikhiqizo namandla, vakashela ikhasi Lemikhiqizo noma uthinte ithimba ngqo. Ezinkampanini ezifuna umphathiswa othembekile wesikhathi eside wamapayipi e-boiler anomfutho ophezulu, i-Wuxi Hengzhihui inikeza ikhono lobuchwepheshe, ukuqinisekiswa kwekhwalithi, kanye nokuguquguquka kwezentengiselwano okudingwa umkhakha.

Ibhobho le-boiler elinomfutho ophakeme (high pressure boiler tube) iyithubhu lensimbi engenamthungo (seamless steel tube) eklanyelwe futhi yakhelwe ukumelana namazinga aphezulu kakhulu okushisa kanye nomfutho wangaphakathi atholakala ezinhlelweni zama-boiler, ama-heat exchanger, ama-superheater, nama-reheater. Ngokungafani namapayipi ensimbi ajwayelekile (standard steel pipe), akhiqizwa ngokwezinga elijwayelekile lomfutho futhi angase abe nemithungo (welded seams), amabhobho e-boiler anomfutho ophakeme ahlala engenamthungo futhi kufanele ahlangabezane nezindinganiso eziqinile ze-ASTM/ASME mayelana nokwakheka kwamakhemikhali (chemical composition), izakhiwo zemishini (mechanical properties), kanye nokuhlolwa okungenabulimaza (nondestructive examination). Aphinde adinge ukulandeleka okugcwele (full traceability) ngezitifiketi zokuhlola izinto (material test certificates) futhi ahlolwe ngokuhlolwa okuqinile njengokuhlolwa kwamanzi (hydrostatic), i-ultrasonic, kanye nokuhlolwa kwe-eddy current.

Izinga elivame kakhulu lifaka izinsimbi zekhabhoni ezifana ne-ASTM A106 Grade B, A179, A192, ne-A210 ezingxenyeni ezinamazinga okushisa aphansi nokucindezela okuphakathi, kanye nezinsimbi ezingxubevange ezivela ochungechungeni lwe-ASTM A213 T/P ezifana ne-T11, T22, T91, ne-T92 ezingxenyeni ezinamazinga okushisa aphezulu. Izinga lensimbi engagqwali elifaka i-TP304/L, TP316/L, ne-310S lisetshenziswa ezindaweni ezinamakhemikhali anobudlova noma ezinsizeni ezinamazinga okushisa aphezulu kakhulu. Ukukhetha kuncike emazingeni okushisa okusebenza, ukucindezela, nezimo zokugqwala zohlelo lwe-boiler.

I-Wuxi Hengzhihui inikeza amapayipi okushisa aphezulu anobubanzi obungaphandle obusuka ku-6 mm kuya ku-1240 mm kanye nobukhulu bodonga obusuka ku-1 mm kuya ku-50 mm. Kutholakala kokubili ubude obuqondile namapayipi agobile angu-U, anezilinganiso eziqinile zobukhulu. Izilinganiso ezenziwe ngokwezifiso nazo zingakhiqizwa nge-hot rolling, cold drawing, noma izinqubo zokwandisa ukushisa ukuze kuhlangatshezwane nezidingo ezithile zephrojekthi.

Amapayipi ethu omfutho ophezulu we-boiler akhiqizwa ngokuhambisana namazinga e-ASTM/ASME afaka i-A106, A179, A192, A210, ne-A213. Uhlelo lokuphatha ikhwalithi yenkampani luqinisekisiwe nge-ISO 9001, futhi izikhungo zethu zigunyazwe yi-API 5L kanye ne-EU PED. Ithubhu ngalinye linikezwa isitifiketi esigcwele sokuhlolwa kwempahla futhi lingahlolwa izinhlangano ezingaphandle ezifana ne-SGS, BV, noma i-Lloyd's uma kuceliwe. Ungabuka izitifiketi zethu ekhasini Lezitifiketi.

Amapayipi okucindezela aphezulu (high pressure boiler tubes) akhiqizwa ngezinqubo ezifana nokugoqwa okushisayo (hot rolling), ukudonswa okubandayo (cold drawing), noma ukunwetshwa ngokushisa (heat expansion), kusukela ensimbi eqinile (solid billet) ehlanjululwa futhi yelulwe ukuze yakhe umbhobho ongenamthungo (seamless hollow). Ukulawulwa okubalulekile kwenqubo okuhlanganisa ukuqapha izinga lokushisa, ukulawula isivinini sokugoqa, nokuphathwa kokugcoba (lubrication management) kuvimbela ukukhubazeka (defects). Ngemva kokwakhiwa, ipayipi ngalinye lihlolwa ngokungaboni (nondestructive examinations) (i-ultrasonic, i-eddy current, nokuhlolwa kwe-hydrostatic) futhi lashiswa (heat treatment) ukuze kutholakale ukwakheka kwama-microstructure kanye nezakhiwo zemishini (mechanical properties) ezidingekayo.

Inqubo yokwelashwa ngokushisa incike ezingeni lezinto: amashubhu ensimbi ekhabhoni avame ukuthola ukujwayelekile noma ukuthambisa, kuyilapho amazinga ensimbi eyi-alloy afana ne-T91 enza ukuthambisa nokuthambisa ukuze athuthukise amandla aphezulu okukhasa. Amashubhu ensimbi engagqwali ayancibilikiswa futhi apholise ngokushesha ukuze agcine ukumelana nokugqwala. I-Wuxi Hengzhihui isebenzisa iziko elilinganiselwe elinokulawula izinga lokushisa lezindawo eziningi futhi igcina amarekhodi emininingwane yesikhathi nokushisa ukuze kulandeleke ngokugcwele.

Ngemva kokukhiqizwa, amashubhu adlula enqubweni yokulungisa indawo enezinyathelo eziningi ehlanganisa ukuhlanza ngomshini, ukucwiliswa emanzini ane-asidi, ukugeza ngamanzi anomfutho ophezulu, nokuvikela ukugqwala ukuze kususwe isikhumba nokugqwala futhi kwakheke ungqimba oluvikelayo lwe-oxide. Ezinhlelweni ezidinga ingaphakathi elihlanzekile ngokukhethekile, kusetshenziswa ukususa ukugqwala ngokufafaza ngezinto ezivimbela ukugqwala. Ukushaya ngezinhlamvu zensimbi nokufaka i-phosphate kuyatholakala futhi ukuze kuvikelwe okwengeziwe ngesikhathi sokugcinwa nokuthuthwa.

Yebo, i-Wuxi Hengzhihui ihlinzeka ngamashubhu agobile u-U ane-bend radii enembile, imikhawulo ye-ovality, kanye nemikhawulo yokuncipha kodonga ukuze kuqinisekiswe ubuqotho besakhiwo. I-U-bend ngayinye iyahlolwa ukuze kuqinisekiswe ukuthi ingxenye egobile ihlangabezana namazinga afanayo aqinile njengeshubhu eliqondile, okuhlanganisa ukulinganisa kobukhulu nokulinganisa ubukhulu. Amashubhu agobile u-U asetshenziswa kabanzi kuma-heat exchanger kanye nezinyanda zamashubhu e-boiler ukuze kutholakale ukuhlelwa kokushintshana okuhlangene kokushisa.

Ishubhu ngalinye limakwe ngokucacile ngenombolo yokushisa, izinga, usayizi, nesitembu sokuhlola. Kunikezwa isitifiketi esiphelele sokuhlolwa kwezinto (MTC), okuhlanganisa ukwakheka kwamakhemikhali, izakhiwo zokudonsa, ubulukhuni, kanye nemiphumela yakho konke ukuhlolwa okungenabungozi. Amadokhumenti afana ne-bill of lading, isitifiketi semvelaphi, kanye nemibiko yokuhlola yomuntu wesithathu nawo ayahlinzekwa njengoba kudingeka ukuze kuqinisekiswe ukulandeleka okuphelele kusukela embonini kuya ekufakweni.

I-Wuxi Hengzhihui inikeza inhlanganisela eyingqayizivele yolwazi olujulile lomkhiqizo, ikhwalithi eqinisekisiwe, amanani ancintisanayo, kanye nokulethwa okuthembekile. I-inventri yethu ihlanganisa osayizi namazinga avame kakhulu, futhi onjiniyela bethu bezokuthengisa bayasiza ekukhetheni izinto zokusebenza kanye nezinsizakalo ezinokwengezwa okufana nokusika, ukugoba, nokugoba u-U. Ngokuthola izitifiketi ze-ISO 9001, API 5L, kanye ne-EU PED, kanye nezinketho zokuhlola ezivela emuva, sinikeza isiqinisekiso esidingekayo ezinhlelweni ezibalulekile zephrojekthi. Vakashela ikhasi lethu elithi Mayelana Nathi ukuze ufunde kabanzi ngenkampani yethu kanye nezimiso zethu.