Xa usiva 'I-Incoloy ityhubhu,' into yokuqala ephumayo ihlala i-data sheet - isakhiwo se-austenitic, isiseko se-nickel-iron-chromium, ukuxhathisa kwe-oxidation. Kodwa eso sisiqalo nje. Ibali lokwenyani liqala xa uzama ukuligoba, ukuligoba, okanye ukulityhalela kwimida yalo kwindawo yenkonzo emuncu. Ndibone iiprojekthi ezininzi kakhulu zikhubeka kuba ziphethe i-spec njengelizwi lokugqibela. Usapho lwe-alloy, njenge I-Incoloy 800H okanye IKholoyi 825, ikunika isakhelo, kodwa ukuziphatha kombhobho kuchazwe yimbali yayo yonke - ukusuka kwivenkile enyibilikayo ukuya kunyango lokugqibela lobushushu. Ukufumana elo lungelo kulapho amashumi eminyaka esiseko kunye namava omatshini, njengaloo nto uyifumana kwifemu efana neQingdao Qiangsenyuan Technology Co., Ltd.(QSY), eneneni ibalulekile.
Ezona Nuances zeMveliso ezingajongwanga kakhulu
Makhe sithethe ngenkqubo yokuphosa yale mibhobho, ngakumbi kwizixhobo ezintsonkothileyo okanye amacandelo anodonga olungqingqwa. Ngokugaywa kotyalo-mali, nto leyo i-QSY iyenze ngaphezu kweminyaka engama-30, ulawulo lwesakhiwo sokutya okuziinkozo lubalulekile kwi Ityhubhu ye-Ikoloyi. Akukhona nje ngokugalela inyibilika. Isixhobo sokubumba iqokobhe, iqondo lobushushu langaphambili, izinga lokupholisa - ukutenxa okuncinci apha kunokwazisa ukwahlulwa-hlulwa kwezinto ezifana ne-titanium okanye i-aluminium kumabanga afana ne-800H. Oku akusoloko kubonakala kuvavanyo oluqhelekileyo lwe-PMI, kodwa kuyakukhathaza ngexesha lenkonzo yobushushu obuphezulu, okukhokelela ekukhuleni kwangaphambi kwexesha. Ndikhumbula ibhetshi yeeheader ezininzi ezihlala zisilela kuvavanyo lwe-hydro kwi-welds; i-culprit yalandelwa emva kokupholisa okungahambelaniyo kwinqanaba lokuphosa utyalo-mali, ukudala amanqaku oxinzelelo lwendawo akukho mntu wacinga ukujonga.
Emva koko kukho umatshini. Abantu bacinga ukuba ngenxa yokuba i-nickel alloy, uvele ulahle i-carbide kuyo kwaye unethemba lokuhle. Leyo yindlela ekhawulezayo yezixhobo ezonakalisiweyo kunye nemigangatho esebenza nzima. Ukwenziwa kwetshiphu enentambo ye-Incoloy inokuba liphupha elibi. Udinga ukuseta okuqinileyo, ii-engile zehariki ezivumayo, kunye nesigqibo esicacileyo malunga nokupholisa - ngamanye amaxesha uxinzelelo oluphezulu lwezandyondyo luyimfuneko, ngamanye amaxesha kwimisebenzi ethile, ungasondela ngokukhawuleza ukuphepha imiba yokuqaphela. Injongo kukuphumeza oko kugqitywa komphezulu ngaphandle kokuzinzisa uxinzelelo, oluba yindawo yokuqaliswa koxinzelelo lwe-corrosion cracking kamva. Yimvakalelo ophuhlayo, hayi into oyifumana kwincwadana yemigaqo.
Unyango lobushushu emva kokuphoswa yenye indawo yemigodi. Isisombululo sokuphelisa uxinzelelo sisemgangathweni, kodwa i-medium kunye nesantya yiyo yonke into. Ukucima amanzi? I-oyile? Umoya onyanzelweyo? Kuxhomekeke kubukhulu becandelo lombhobho. Udonga olungqingqwa IKholoyi 825 ityhubhu ecinywe ngamandla kakhulu inokujika okanye iqhekeke. Ukucotha kakhulu, kwaye ubeka emngciphekweni wemvula ye-carbide kwimida yengqolowa, isoyisa injongo yayo ngokuchasene nokubola. Oku sikufunde kabuhlungu kwiprojekthi ye-geothermal, apho iityhubhu zasilela ekuhlolweni emva koko sasicinga ukuba linyathelo leencwadi. Umthwalo wesithando somlilo wawuxinene kakhulu, udala iiprofayili ze-thermal ezingalinganiyo. Yayisisifundo esineendleko eziphezulu kwisikali kunye nolawulo lwenkqubo.
Ukuwelda: Apho ithiyori idibana neTotshi
Kulapho irabha idibana khona nendlela. Wonke umntu uthetha malunga nokusebenzisa iintsimbi zokugcwalisa ezihambelanayo, kodwa ukulungiswa yi-90% yedabi. Kweye Ityhubhu ye-Ikoloyi, ubuso be-bevel kunye nomphezulu we-diameter (ID) wangaphakathi kufuneka ucoceke ngokugqibeleleyo - kwaye andithethi nje ukuwusula. Nawaphi na amasuntswana entsimbi afakwe kwisixhobo sangaphambili okanye ekuphatheni (ukusila uthuli olusuka kwintsimbi yekhabhoni ekufutshane kukungcoliseka kweklasikhi) kuya kudala ukuxutywa kwesinyithi kwi-weld pool. Oku kunokwehlisa kakhulu ukuxhathisa komhlwa kwindawo ye-weld, kudala i-anode efanelekileyo yohlaselo lwe-galvanic enkonzweni.
Ulawulo lobushushu be-interpass aluxoxiswana kodwa luhlala lujongwa ngokukhululekileyo. Ukuvumela ityhubhu ukuba shushu kakhulu phakathi kweepaseji, ngakumbi kwiindawo ezithintelweyo, kunokukhokelela ekukhuleni okugqithisileyo kweenkozo kwindawo echatshazelwe bubushushu (HAZ). Le ndawo ke iba likhonkco elibuthathaka, i-ductile encinci kwaye ithande ukuqhekeka phantsi kwebhayisekile ye-thermal. Ndikhe ndabona abaweldi bezama ukukhawulezisa i-weld yesokethi kwityhubhu ye-Incoloy enedayamitha encinci, bengahoyi ukwakheka kobushushu, kuphela ukuba i-weld iqhekeke ngokuvakalayo ngexesha lokupholisa. Ivakala ngathi yi-'ping' encinci – isandi sokuphinda kusetyenzwe kwakhona.
Ukucoca umqolo yenye imfundiso. Kwityhubhu ethwele imidiya eyonakalisayo, ukuxhaswa kwe-argon epheleleyo kubalulekile ukukhusela i-shugaring (i-oxidation) kwi-ID ye-weld bead. Kodwa umthamo kunye nesantya sokuhamba sibalulekile. Uxinzelelo oluninzi kwaye uvuthele kwingcambu yakho yokudlula; incinci kakhulu kwaye ufumana i-porous, ingcambu engcolileyo. Kwimibhobho emide, siye sasebenzisa amadama okucoca anyibilikayo, apho iinkampani ezisebenza ngomatshini kunye nokwenza izinto ezifana ne-QSY ziyakuqhelana nawo, ukonga irhasi kunye nokuqinisekisa ukhuseleko. Liqhinga elilula, kodwa ukuyilibala kubeka esichengeni ingqibelelo yetyhubhu yonke ukusuka ngaphakathi ngaphandle.
Isixhobo Sokukhetha Izinto
Impazamo eqhelekileyo kukungagqibeki kwelona bakala lidumileyo, njenge I-Incoloy 800H, kwizicelo eziphezulu zobushushu ngaphandle kokuqwalasela indawo epheleleyo. Ewe, inamandla amakhulu kunye nokumelana ne-carburization. Kodwa ukuba indalo esingqongileyo inamanani omkhondo wesulfure, unokusetyenzwa ngcono ngealloyi ephezulu yenickel. Amaphepha edatha adwelisa ukuchasana okukhulu, kodwa ababulali abathuleyo bubumdaka obuncinci kwinkqubo yomsinga. Uhlalutyo olungaphumeleliyo ndibe yinxalenye yokuhlaselwa kwe-sulfidation kwiityhubhu ze-800H kwisithando somlilo; uhlalutyo lwe-feedstock lutshintshile kancinci, kwaye akukho mntu uphinde wavavanya ukufaneleka kwezinto.
Emva koko kukho umdlalo wokutshintsha oqhutywa yindleko. Omnye umntu ubona 'i-nickel-based' kwaye ucinga ukuba i-austenitic yexabiso eliphantsi njenge-304H inokwenza. Ngeminye imisebenzi ye-corrosion yobushushu obuphantsi, mhlawumbi. Kodwa ngokudinwa kokwenyani kwe-thermal kunye nokumelana nokunyuka, i-microstructure ye-Incoloy yahluke kakhulu. Iindlela zokuqinisa ezivela kwi-aluminium / i-titanium eyongeziweyo (kumabakala anzima) okanye isisombululo esiqinileyo esomelezwa kwi-molybdenum kunye nobhedu (kwi IKholoyi 825) ayizongezo nje ozikhethelayo. Ziyimveliso. Ukukhetha ityhubhu imalunga nokuthelekisa isazisi sayo sesinyithi kwiindlela zokusilela ozama ukuzinqanda.
Kulapho ukusebenzisana nomthengisi oluqondayo uhambo lwemathiriyeli ngundoqo. Inkampani ephethe yonke into ukusuka ekubunjweni kweqokobhe leemilo ezikrwada ukuya kumatshini wokugqibela we-CNC weziphelo zetyhubhu kunye neeflange, njenge-QSY, iyabonakala kulo lonke ikhonkco. Abagcini nje ngokusika ityhubhu yesitokhwe; bayayiqonda indlela i-porosity yokuphosa, ukuba ikhona, echaphazela ngayo umgangatho owenziwe ngoomatshini, okanye indlela unyango lobushushu olusuka kwindawo yokusila olunokuthi ludibane nomsebenzi wokuwelda okulandelayo. Olo mbono lubanzi luthintela ukukhombana ngeminwe okuninzi kamva.
I-Real-World Application kunye namanqaku okusilela
Kwiindawo zokutshintsha ubushushu, iityhubhu ziligazi. Ndiye ndasebenza kwiiyunithi iqokobhe-kunye-ityhubhu apho Ityhubhu ye-Ikoloyi I-bundle ichazwe ngokuchanekileyo, kodwa inkqubo ye-tube-to-tubesheet ye-weld yayiyi-afterthought. Ukwandiswa kokwahluka phakathi kwetyhubhu ye-Incoloy kunye ne-carbon steel tubesheet kudala uxinzelelo olukhulu. Udinga ulandelelwano lwe-weld oluneenkcukacha, rhoqo kunye ne-weld yamandla elandelwa yi-weld yetywina, kwaye ngamanye amaxesha nokwandiswa kwetyhubhu eqhumayo kwiphepha lokulawula olo xinzelelo. Tsiba la manyathelo, kwaye uya kubona ukuvuza kumalungu kwimijikelo yokuqala embalwa yobushushu.
Enye ingongoma efihlakeleyo kukudinwa okubangelwa kukungcangcazela. I-inconel alloys isoloko ikhethwa kule nto, kodwa iibhubhu ze-Incoloy ezinde, ezingaxhaswanga, zithi, i-heater evuthayo inokubandezeleka. Ayisoloko ikwimiba yoyilo ukujonga ukungcangcazela kwe-acoustic okanye ukushukuma okuhamba-hambayo. Saba ityala apho ibhanki ye IKholoyi 825 iityhubhu kwibhoyila yobushushu benkunkuma zenze iintanda kufutshane nezixhaso. Ingcambu yesizathu yayiyi-resonant frequency ebekwe yi-gas flow, into ethile uhlalutyo olulula loxinzelelo aluzange lubambe. Ukulungiswa okubandakanya ukongeza i-mid-span isekela ukuguqula i-frequency yendalo - isisombululo esilula somatshini kwi-complex ye-metallurgical component.
Ukuhlolwa ngumgca wakho wokugqibela wokukhusela. Uvavanyo lwedayi yokungena (PT) lulungele ukuqhekeka komphezulu, kodwa ngenxa Iityhubhu ze-Icoloy, ngakumbi emva kwe-welding, ndingumxhasi wovavanyo lwangoku lwe-eddy (ECT) yendawo echaphazelekayo ukushisa. Iyakwazi ukuchola i-anomalies engaphantsi komhlaba kunye nokwahluka kwiipropathi zemathiriyeli eziphoswa yi-PT. Uvavanyo lwe-Ultrasonic (UT) lukhulu kubukhulu bodonga kunye neziphene ezinzulu, kodwa ukuseta ngokuchanekileyo kwisakhiwo senkozo erhabaxa yecandelo le-Incoloy etyhidiweyo okanye i-welded ifuna iibhloko ezithile zokulinganisa ezenziwe ngezinto ezifanayo. Ukusebenzisa ibhloko yentsimbi eqhelekileyo kukunika ufundo olungathembekanga. Zezi zinkcukacha ezahlula i-QA efanelekileyo kumsebenzi wamaphepha.
Iingcamango zokuqukumbela: Yinkqubo, hayi iMveliso
Ke, xa ukhangela okanye ukhankanya i Ityhubhu ye-Ikoloyi, awuthengi nje ubude be-alloy enganyangekiyo. Uthenga ukuthembeka kwayo yonke inkqubo yokuvelisa eyivelisayo. Isenzo sokunyibilika, iiparamitha zokuphosa, igophe lonyango lobushushu, isicwangciso somatshini, kunye nenkqubo ye-welding zonke zibhakwa ekusebenzeni kokugqibela. Awunakho ukuhlola umgangatho kwityhubhu engenziwanga kakuhle kwasekuqaleni.
Yiyo loo nto imvelaphi yomthengisi ixela. Inkampani eneengcambu ezinzulu ekwenziweni nasekusebenzeni, njengeQingdao Qiangsenyuan Technology Co., Ltd., izisa loo ngqondo ijolise kwinkqubo. Baye badibana ne-warping ngexesha lonyango lobushushu, isixhobo sokunxiba ngexesha lomatshini, kunye nemiceli mngeni yokulungelelanisa ngexesha lokwenziwa. Loo mava aguqulela kwimveliso ethembekileyo ngakumbi kuba baqonda izinto eziguquguqukayo. Ungayifumana indlela yabo yokusebenza ngeealloyi ezikhethekileyo ezifana nezi kwindawo yabo, https://www.tsingtaocnc.com.
Ekugqibeleni, i-spec sheet ikufumana kwi-ballpark. Kodwa ukugcina iityhubhu yakho ye-Incoloy isebenza ngokuthembekileyo amashumi eminyaka kwehla kwi-gritty, ezandleni zolwazi lwendlela izinto eziphathekayo eziziphatha ngayo xa zingekho kwimeko egqibeleleyo, ye-lab-condition. Imalunga nokuqikelela iingxaki ezingekhoyo kwincwadana. Lowo ngumahluko phakathi kwetyhubhu edibana nekhowudi kunye netyhubhu ehlala ihleli.
