Izingxenye zokudonsa amavalvu ziyizakhiwo eziyisisekelo ezisetshenziswa ezinhlelweni zokulawula uketshezi, ezisebenza njengezisekelo zamavalvu esango, amavalvu omhlaba, amavalvu ebhola, namanye amaningi amavalvu ezimboni. Lezi zingxenye eziqeqeshiwe zokudonsa kufanele zikwazi ukubekezelela ingcindezi ephezulu, izinga lokushisa elidlulele, kanye nezindawo ezonakalisayo, okwenza ikhwalithi yazo ibe yisici esinqumayo ekuthembekeni kwemishayo, izimboni zokucwenga uwoyela, izimboni zamakhemikhali, kanye nezindawo zokwelapha amanzi. I-Hebei Unna Metal Technology Co., Ltd., njengomkhiqizi ochwepheshe wezingxenye zokudonsa amavalvu, iletha amashumi eminyaka okuhlangenwe nakho kwezinsimbi kanye nezinqubo ezithuthukisiwe zokudonsa ukuze ilethe izingxenye ezihlangabezana namazinga aphezulu kakhulu omhlaba. Ukukhethwa kwezindlela ezifanele zokudonsa nezinto ezisetshenziswayo kuthinta ngqo ukusebenza kanye nempilo yomhlangano wokugcina wevalvu, yingakho onjiniyela kanye nabathengi emhlabeni wonke banaka kakhulu ukuthola lezi zingxenye. Kulo mhlahlandlela ophelele, sizohlola izinhlobo ezahlukene zokudonsa amavalvu, izinqubo zokukhiqiza ngemuva kwazo, izinto ezisetshenziswa kakhulu, kanye namakhono ahlukanisa umphakeli omethembekayo kwabanye. Ngokuqonda lezi zici, amabhizinisi angakwenza izinqumo ezinolwazi lapho ekhetha umlingani wezidingo zawo zokudonsa amavalvu. Ukuzibophezela kwethu kwa-Hebei Unna Metal ukuhlinzeka hhayi kuphela ngezingxenye kodwa futhi nokusekelwa okuphelele kwezobuchwepheshe, siqinisekisa ukuthi zonke izingxenye ezidonsiwe zifaka isandla ekusebenzeni okuphephile nokusebenzayo. Isidingo somhlaba wonke sezixazululo eziqinile zokudonsa amavalvu siqhubeka nokukhula, siqhutshwa ngentuthuko yengqalasizinda kanye nokuzenzakalela kwezimboni, futhi sibekwe ukuhlangabezana nesidingo esinjalo ngekhwalithi eqhubekayo kanye nokulethwa ngesikhathi.

Izinto zokubumba amavalvu zenziwa ukuze zilungele izinhlobonhlobo eziningi zemiklamo yamavalvu, ngayinye ilungiselelwe izicelo ezithile zokulawula ukugeleza. Phakathi kwezinhlobo ezivame kakhulu kukhona izinto zokubumba zamavalvu esango, izinto zokubumba zamavalvu eziyindilinga, nezinto zokubumba zamavalvu ebholayo. Izinto zokubumba zamavalvu esango zakhelwe inkonzo yokuvula-ukuvala lapho kudingeka khona ukwehla komfutho okuncane, futhi ngokuvamile zinezinga eliyisicaba noma eliyisimo-nqamu elihambayo ngokuphambana nendlela yokugeleza. Umzimba ne-bonnet lavalvu esango ngokuvamile zibumbwa ngezinto ezifana ne-carbon steel noma i-ductile iron, futhi ezicelo zokucindezela okuphezulu, ukucaciswa kwe-API 600 kwamavalvu esango kusetha izindinganiso eziqinile zokuklama, izinto, nokuhlolwa. Leli zinga liqinisekisa ukuthi izinto zokubumba zingamelana nezimo ezimbi kakhulu emapayipini kawoyela negesi. Ngakolunye uhlangothi, izinto zokubumba zamavalvu ayindilinga zisetshenziselwa ukudonsa nokulawula ukugeleza ngenxa yokuhlelwa kwazo kwediski-nesihlalo okudala imbobo eguquguqukayo. Imizimba yazo ebilumbile ngokuvamile iyinkimbinkimbi kakhulu, idinga ukunemba ekubekeni i-core ukuze kufezekiswe izici zokugeleza ezifunwayo. Izinto zokubumba zamavalvu ebholayo zihlanganisa ibhola eliyindilinga elinombhobho, futhi ukubumba kufanele kunikeze indawo eyisicaba, engenavuza lapho ibhola lingajikeleza khona. Uhlobo ngalunye ludinga izindlela ezahlukene zokubumba, ubukhulu bodonga, nokuqedwa kobuso. Kwa-Hebei Unna Metal, sinolwazi lokukhiqiza zonke lezi zinhlobonhlobo, sisebenzisa izindlela zokubumba zesihlabathi nokubumba kokutshala ukuze sihambisane nezidingo ezidingekayo kanye nezakhiwo zemishini. Ukuqonda izimo ezithile zokusebenza—njengesigaba sokucindezela, ububanzi bokushisa, kanye nemvelo yoketshezi—kusivumela ukuthi sincome umklamo wokubumba ofanele kakhulu kuphrojekthi yekhasimende ngalinye. Ngaphezu kwalokho, ngokuvamile sihlinzeka ngezinto zokubumba zamavalvu akhethekile, okuhlanganisa namavalvu okuhlola namavalvu ezinyawo zikagesi, ezibalulekile ezinhlelweni zamanzi nodlekeni. Ukuhlukahluka kwezinhlobo zokubumba amavalvu kubonisa ukusetshenziswa okubanzi kwezi zinto ezakhiweni ezisukela kumakhemikhali kawoyela kuya ekuhlinzekeni amanzi komasipala.

Noma singafaki izithombe kulesi sihloko, kubalulekile ukuchaza izici ezibonakalayo ezihlukanisa izinga eliphezulu lezingxenye zamavalvu ezibunjiwe. Ukubunjwa okwenziwe kahle kubonisa indawo ehlanzekile enobubomvu obuncane, imiphetho ebukhali ezindaweni zokuhlukanisa, kanye nokujiya okungaguqukiyo komzimba wonke. Izikhala zangaphakathi, ezakhiwa izikhungo, kufanele zibe bushelelezi futhi zingabi namagwebu noma isihlabathi esixegayo. Ezindaweni zamavalvu ezibunjwe ngokutshala, ukuqedwa kwendawo kubucayi kakhulu, kuvame ukusondela ekubunjweni okuseduze kwenetha okunciphisa isikhathi sokucubungula. I-Hebei Unna Metal isebenzisa ukuhlolwa okubucayi okubonakalayo kanye nezindlela zokuhlola ezingonakalisi njenge-X-ray nokuhlolwa kwe-dye penetrant ukuqinisekisa ukuthi zonke izingxenye ezibunjiwe zihlangabezana namazinga adingekayo. Amakhasimende angalindela izingxenye ezibunjiwe ezingenawo amafufutha, izikhala zokuncipha, nezingxenye ezingafuneki, okuyizici ezivamile ezingxenyeni ezingezona ezisezingeni eliphezulu. Ikhwalithi ebonakalayo yokubunjwa yinkomba yokuqala yokuqina kwayo kanye nekhono lefushini eliyikhiqizile. Ngokubambisana nomkhiqizi ophambili ukunemba kobukhulu nokuqedwa kwendawo, abasebenzisi bokugcina banganciphisa umsebenzi wokulungisa futhi bandise impilo yesevisi yamavalvu abo.

Ukwenziwa kwezingxenye zokubumba amavalvu kuhlanganisa izinqubo eziningana ezisungulwe kahle, ngayinye inikeza izinzuzo ezihlukile kuye ngokuba nzima, inani, nezidingo zezinto. Indlela esetshenziswa kakhulu ukubumba ngesihlabathi, lapho iphethini licindezelwa enhlanganisela yesihlabathi ukuze kwakheke umgodi wokubumba. Ukubumba ngesihlabathi kuyaguquguquka futhi kunenzuzo ekukhiqizeni imizimba emikhulu yamavalvu, njengaleyo yamavalvu esango namavalvu omhlaba, ngezinto ezifana nensimbi empofu, insimbi eqinile, nensimbi yekhabhoni. Le nqubo ivumela ukukhiqizwa kwezingxenye ezinkulu zokubumba futhi ingakwazi ukubamba imigudu yangaphakathi ngokusebenzisa izikhungo zesihlabathi. Enye indlela ethuthukisiwe ukubumba ngokutshala, eyaziwa nangokuthi ukubumba ngewax elahlekile, esebenzisa iphethini le-wax eligqitshwe ngesikhumba se-ceramic. Le ndlela inikeza ukuqedwa okuphezulu kobuso nokunemba kobukhulu, okuyenza ilungele izingxenye zamavalvu eziyinkimbinkimbi njengezihlalo zamavalvu ebholamu namavalvu amancane lapho ukubekezelelana okuqinile kubalulekile. Ukubumba ngama-foam alahlekile kuyindlela yesithathu, lapho iphethini le-foam ligxiliswe esihlabathini futhi livuswe yinsimbi encibilikile. Le nqubo isusa isidingo semigqa yokuhlukanisa nezikhungo, ivumela izimo eziyinkimbinkimbi futhi inciphisa izidingo zokucubungula. I-Hebei Unna Metal isebenzisa zonke izindlela ezintathu, ikhetha eyona efanele kuye ngokuklama kwengxenye, ukucaciswa kwezinto, kanye nomthamo wokukhiqiza. Ngokwesibonelo, ukubumba ngokutshala kukhethwa izingxenye zamavalvu ensimbi engagqwali ezidinga ukumelana nokugqwala, kanti ukubumba ngesihlabathi kuvame ukukhethwa izingxenye ezinkulu zamavalvu ensimbi lapho ukusebenza kahle kwezindleko kubaluleke kakhulu. Kungakhathaliseki ukuthi iyiphi indlela, izindawo zethu zokubumba zinamathela ezilawulweni eziqinile zenqubo, okuhlanganisa ukuqapha izinga lokushisa, ukulungiswa kokubumba, nokwelashwa ngokushisa, ukuze kuqinisekiswe izakhiwo ezihambisanayo ze-metallurgical. Ukukhetha inqubo yokubumba kuthinta ngqo amandla engxenye yokugcina, ukuqedwa, kanye nenani, okwenza kube kubalulekile ukuthi abathengi babambisane nomkhiqizi ongabunikeza izinketho eziningi ezihambisana nezidingo zabo.

Ukwukhetha izinto zezingxenye zokubumba amavalvu kuyisinqumo esibalulekile esinquma ukumelana nokugqwala kwevalvu, isilinganiso sokucindezela, nokuqina okuphelele. Insopa (Carbon steel) ingenye yezinto ezivame kakhulu, enikeza amandla aphezulu ngezindleko ezilinganisiwe, futhi isetshenziswa kabanzi ekubumbeni kwamavalvu esango (gate valve) ezicini zikadizili negesi. Isebenza kahle ezindaweni ezishisayo futhi ingahlanganiswa ngokuwela ukuze kulungiswe noma kuhlanganiswe. Izinhlobo zensimbi engagqwali (stainless steel), njenge-CF8M ne-CF3M, zinikeza ukumelana okuhle kakhulu nokugqwala ngokumelana namacidi, ama-chlorides, nezinye izinto ezilimazayo, okwenza zibe yinto ekhethwayo ezimbonini zamakhemikhali, ezolwandle, nezezokudla. Ukubumba ngokutshala (Investment casting) kuvame ukusetshenziswa ezintweni zensimbi engagqwali ukuze kutholwe ukuqedwa kobuso obuhle okudingekayo kumavalvu anenhlanzeko. Insopa eluhlaza (Gray iron) iyinto yendabuko eyaziwa ngokuba lula ukuyisebenzisa ngomshini, ukumelana nokuguga, namandla okudambisa. Ivame ukusetshenziswa kumavalvu ezinyawo (foot valves) e-CI nezinye izicelo zamanzi ezingenawo umfutho omkhulu lapho izindleko zibaluleke kakhulu. Insopa eqinile (Ductile iron), eyaziwa nangokuthi insopa enama-nodules (nodular iron), inikeza amandla aphezulu okudonsa (tensile strength) nokunwebeka (ductility) uma kuqhathaniswa ne-gray iron, okwenza ilungele imizimba yamavalvu enomfutho omkhulu kanye nezingxenye okufanele zimelane nokushintsha okukhulu kwezinga lokushisa. Kwa-Hebei Unna Metal, sithola izinto zokusetshenziswa eziseqophelweni eliphezulu ezivela ezindaweni zokucubungula eziqinisekisiwe futhi senza ukuhlaziywa kwamakhemikhali kuwo wonke ama-heat ukuze siqinisekise ukuhambisana nemininingwane ye-ASTM, ANSI, ne-ISO. Ngaphezu kwalokho, singanikeza izingxenye ezibumbayo ezinsimbi ezi-alloy (alloy steels), izinto ezi-nickel-based (nickel-based alloys), kanye ne-duplex stainless steels lapho kucelwa. Ngokufanisa izici zezinto nendawo yokusebenza, sisiza amakhasimende ukuba agweme ukwehluleka ngaphambi kwesikhathi futhi sandise izikhathi zokugcinwa. Ubuchwepheshe bethu bezinto buyinzuzo enkulu, busivumela ukuba sincome izixazululo ezingabizi ngaphandle kokudela ukusebenza.

I-Hebei Unna Metal Technology Co., Ltd. isebenza izindawo zokuhlanganisa ezisezingeni eliphezulu ezihlomele imigqa yokubumba ezenzakalelayo, izifudumezi ze-induction, kanye nezindawo zokwelapha ngokushisa ukuze kukhiqizwe izingxenye zokubumba zamavalvu ezinekhwalithi ehambisanayo. Amakhono ethu okukhiqiza asukela ekubumbeni okuncane kokutshala okinesisindo esingamagremu ambalwa kuya ekubumbeni okukhulu kwesihlabathi okudlula amathani ambalwa. Sinikeza isethi ephelele yezinsizakalo ezihlanganisa ukwenza amaphethini, ukukhiqizwa kwe-core, ukuncibilika, ukuthulula, ukulungisa, ukucubungula ngomshini, nokumboza okuphezulu. Ukuqinisekisa ubuqotho bokubumba ngakunye, sisebenzisa izindlela zokuhlola ezingonakalisi (NDT) njengokuhlola ngemisebe, ukuhlola ngama-ultrasound, ukuhlola izinhlayiya zamagnetic, nokuhlola ingcindezi. Uhlelo lwethu lokuphatha ikhwalithi lufakazelwe i-ISO 9001, futhi siphinde sibe nobufakazi be-API 600 bokubumba kwamavalvu esango, okubonisa ukuzibophezela kwethu emazingeni aphezulu embonini. Ngaphezu kokukhiqiza, sihlinzeka ngezinsizakalo ezingeziwe njengokwelapha ngokushisa, ukudubula ngesihlabathi, ukucubungula ngomshini, nokuhlanganisa, okuvumela amakhasimende ukuthi athole izingxenye ezilungele ukusetshenziswa ezinciphisa ukucubungula kwawo endlini. Umphakathi wethu wokuhlinzekwa uhlelelwe izikhathi zokuholela, ngokulethwa okujwayelekile kokubumba kusukela ezinsukwini ezingu-25 kuye kwezingama-45 kuncike ebunzimeni nenani. Sigcina inqubo yokuxhumana esobala, sihlinzeka ngamasampula okubumba kanye nemibiko yobukhulu ngaphambi kokukhiqizwa ngobuningi. Ngamaphrojekthi aphuthumayo, singasheshisa ngokuhlela kwethu okuguquguqukayo kanye nethimba lethu elizinikezele lokuphatha amaphrojekthi. Idumela lomkhiqizo wethu lakhiwe ngokwethembeka, futhi sihlala sitshala kwezobuchwepheshe obusha ukuthuthukisa ukusebenza kahle kanye nokusebenza kwemvelo. Ngokukhetha i-Hebei Unna Metal njengomlingani wakho, uthola isixazululo esisodwa sezidingo zokubumba zamavalvu, esisekelwa ubuchwepheshe kanye nenethiwekhi yokulethwa yomhlaba wonke.Mayelana Nathi ikhasi linikeza imininingwane eyengeziwe ngomlando wenkampani yethu namagugu ayisisekelo.

Izikhathi zokulethwa zincike endleleni yokubumba, impahla, kanye nenani. Ezintweni ezibumbwe ngenhlaka, isikhathi esivamile sokulethwa yizinsuku ezingu-25 kuya kwezingu-35 ngemuva kokugunyazwa kwephethini eyinhloko. Izinto ezibumbwe ngesihlabathi zingalethwa ezinsukwini ezingu-30 kuya kwezingu-45. Sihlala sinikeza uhlelo oluqinisekisiwe lapho ubeka i-oda futhi sigcina amakhasimende anolwazi ngesikhathi sokukhiqiza.

Yebo, sihlinzeka ngezinsizakalo eziningi ezingeziwe ezifaka phakathi ukucubungula nge-CNC, ukubhoboza, ukuthepha, ukwelashwa ngokushisa, ukuqhuma ngesibhamu, nokupenda. Umgomo wethu ukuletha izingxenye eziqediwe ezilungele ukuhlanganiswa, ukukongela isikhathi nezindleko emisebenzini yesibili.

Ungaxhumana nathi nge-Imikhiqizo ikhasi noma ngqo nge-imeyili. Sizobuyekeza imidwebo yakho, imininingwane yezinto ezisetshenziswayo, izidingo zokubalwa, nanoma yiziphi izitifiketi ezidingekayo, bese sihlinzeka ngesilinganiso esinemininingwane kungakapheli amahora angu-48. Samukela ne-oda lesampula ukuze kuqinisekiswe.

Ezinsizeni zokushisa okuphezulu (ngaphezu kuka-400°C), sincoma ukusakazwa kwensimbi ye-carbon noma insimbi ye-alloy. Ezindaweni ezonakalisa ezinezinga lokushisa eliphezulu, izigaba zensimbi engagqwali njenge-CF8C noma insimbi engagqwali ye-duplex zifaneleke kakhulu. Ithimba lethu lobunjiniyela lingeluleka ngokuya ngezimo zakho ezithile.

Impela. Sikhiqiza izinto ezihlakazekayo zegrey iron ne-ductile iron zamavalvu we-CI, ama-check valve, nezinye izingxenye zemisebenzi yamanzi. Izimboni zethu zinokuhlangenwe nakho ekukhiqizeni lezi zingxenye ngokuya ngamazinga afana ne-BS 5163 noma i-AWWA C110.

Sisebenzisa ukulawulwa kwezibalo zenqubo (SPC) ngesikhathi sokukhiqiza futhi sihlola u-100% wezilinganiso ezibalulekile kanye nezitifiketi zezinto. Uhlelo lwethu lwekhwalithi luhlanganisa ukuhlolwa kwezinto zokuqala, ukuhlola ngesikhathi senqubo, nokuhlolwa kokugcina kusetshenziswa izindlela ze-NDT. Siphinde sigcine amarekhodi okulandelelwa kwezinto ezihlakazekayo zazo zonke izinto ezihlakazekayo.

Uma ufuna umlingani onokwethenjelwa wokuhlinzeka ngezingxenye zokudonsa zamavalvu ezisezingeni eliphezulu, i-Hebei Unna Metal Technology Co., Ltd. ilungele ukusiza. Noma ngabe udinga izingxenye zokudonsa zamavalvu zesango ezihlangabezana namazinga e-API 600, izingxenye zensimbi engagqwali ezimelana nokugqwala, noma izingxenye ezonga imali zensimbi empunga ezisetshenziswa ezinhlelweni zamanzi, ithimba lethu linezinsiza zobuchwepheshe nezokukhiqiza ukuze likwazi ukuletha. Siyakuqonda ukuthi iphrojekthi ngayinye inezidingo ezihlukile, yingakho sinikeza insizakalo eyenziwe yaba ngeyakho kusukela ekubuyekezweni kokuqala komklamo kuze kube ukuthunyelwa kokugcina. Xhumana nathi namuhla ngeyethuIkhaya ikhasi noma uthumele umbuzo wakho ngqo. Nikeza imininingwane yakho, futhi sizolungisa ngokushesha isilinganiso esincintisanayo nesikhathi esicacile. Ake sisebenzise ubuchwepheshe bethu kuphrojekthi yakho elandelayo yokubumba amavalvu. Sibheke phambili ethubeni lokubonisa ukuzibophezela kwethu ekuqinisweni, ubuchule, nokwaneliseka kwamakhasimende. Izindaba ikhasi libuye libe nezibuyekezo mayelana namakhono ethu akamuva nemicimbi yomkhakha.

Ngaphandle kwezingxenye ezijwayelekile zokubumba amavalvu, i-Hebei Unna Metal inikeza uhla olubanzi lwemikhiqizo ehlobene ukusekela izidingo zakho zokuphatha uketshezi. Iphothifoliyo yethu yomkhiqizo ihlanganisa ukubumba amavalvu ensimbi engagqwali ezindaweni ezahlukahlukene, eziklanyelwe ukumelana kakhulu nokugqwala futhi zisetshenziswe ezinhlelweni zamaphilisi, ukucubungula ukudla, nezimboni zamakhemikhali. Siphinde sikhiqize izingxenye zamavalvu ezinsimbi ezibunjiwe njengamavalvu ezinyawo ze-CI, imizimba yamavalvu ensimbi, nama-bonnets ezindaweni zamanzi nodoti. Ezinsizeni zezimboni ezisindayo, ukubumba kwethu insimbi yekhabhoni nensimbi ye-alloy kuklanyelwe ukubekezelela ingcindezi ephezulu nokushisa. Ngaphezu kwalokho, sihlinzeka ngokubumba kwamavalvu akhethekile afaka amavalvu okuhlola, amavalvu ebhabhathane, namavalvu okukhulula ingcindezi. Isigaba ngasinye somkhiqizo sizuzwa ngezinqubo zethu zokubumba ezithuthukisiwe kanye nezilawuli zekhwalithi eziqinile. Ukubona uhla olugcwele nemininingwane eningiliziwe, vakashela i-Imikhiqizo ikhasi. Ithimba lethu lingakwazi futhi ukuthuthukisa imiklamo eyenziwe ngokwezifiso ukuze ihambisane nezidingo zakho eziqondile. Ngokukhetha i-Hebei Unna Metal, uthola umngane oyedwa ongakwazi ukubhekana nezidingo ezahlukahlukene zokubumba amavalvu ngekhwalithi ehambisanayo kanye namanani ancintisanayo. Siphinde sikukhuthaze ukuthi ufunde ngomqondo womkhiqizo wethu ku-Umkhiqizo ikhasi, lapho sichaza khona ukuzibophezela kwethu ekuqanjweni okusha nasekuthembekeni.