Xa iinjineli zichaza I-Incoloy800 ngenxa yobushushu obuphezulu, ubushushu obuphezulu-ezifana neetyhubhu ze-steam reformer, iigobolondo zokutshintsha ubushushu, okanye i-hydrocarbon processing manifolds-ayikhethi nje i-alloy. Babheja kwi-metallurgical consistency, dimensional fidelity phantsi kwe-thermal cycling, kunye nokunyamezela i-zero kulwahlulo lwe-microstructural. Yiyo loo nto ukukhangela kwinyani Umzi-mveliso we-Incoloy800 imiba—hayi i-arhente yorhwebo, ingeyiyo isiseko senjongo ngokubanzi, kodwa isibonelelo esinolawulo lwenkqubo ebhaliweyo phezu kokufakwa kwesisombululo, ukuzinzisa ubungakanani benkozo, kunye neeparamitha zokusebenza ezishushu ezithe ngqo kwi-Fe-Ni–Cr superalloys.
Siye sabona iiprojekthi ezininzi zivaliwe ngenxa yokuba umthengisi ucaphule i-Incoloy800-kodwa ihambisa izinto kunye ne-0.02% yesulfure engaphezulu, ebangela ukuqhekeka kwe-intergranular ngexesha lokugqithisa kwe-weld. Okanye okubi kakhulu: iinxalenye ezenziwe ngomatshini kwi-billet enembali yobushushu engaqinisekiswanga, ekhokelela ekugqabhukeni kwangaphambi kwexesha kwinkonzo ye-750 °C. E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., yonke iodolo ye-Incoloy800 iqala ngeengxelo zovavanyo lokusila eziqinisekisiweyo ngokuchasene ne-ASTM B407 kunye ne-ASME SB-407. Sifumana kuphela kwii-mills eziqinisekisiweyo ukuya kwi-NADCAP AC7108 ukwenzela ukusetyenzwa kwe-nickel-alloy-kwaye sigcina ukulandeleka okupheleleyo: inombolo yelophu, i-ID enyibilikayo, ilogi yonyango lwe-thermomechanical, kunye nokuqinisekiswa kobulukhuni emva kokuzalwa. Akukho ngaphandle.
Yintoni eyahlula umntu okwaziyo Umzi-mveliso we-Incoloy800 ukusuka kumthengisi wempahla akusiyo nje isiqinisekiso-yindlela i-alloy eziphatha ngayo * emva * kokwenziwa. I-Incoloy800 isebenza ngokukhawuleza. I-thermal conductivity yayo iphantsi. Amandla ayo ashushu afuna iindlela ezichanekileyo zendlela yesixhobo kunye nokuhanjiswa okupholisayo okulawulwayo. Siqhuba zonke iinkqubo ze-Incoloy800 CNC kumatshini we-5-axis kunye nexesha langempela lokujonga umthwalo we-spindle. Amazinga okutya ahlengahlengisa ngokuguquguqukayo ngokusekelwe kwimephu yobulukhuni bomphezulu-kuba ibhetshi enye inokwahluka ± 15 HB kulo lonke icandelo layo elinqamlezayo. Asingomatshini nje wokushicilela; sisebenza ngomatshini ukuze *sisebenze*. Indlu yempompo ayijikelezi nje-kufuneka igcine i-concentricity ye-≤0.015 mm kwiqondo lokushisa lokusebenza, ngoko i-piston seal ayithethi. Oko kufuna ukuthomalalisa uxinzelelo *phambi* komatshini wokugqibela, hayi emva.
- Ukuzinza kwe-Dimensional phantsi komthwalo we-thermal: Zonke iinqununu ze-Incoloy800 zifumana uncedo oluphindwe kabini-okokuqala kwi-900 ° C kwiiyure ze-2 kwisithando somlilo se-nitrogen, emva koko kwi-760 ° C kwiiyure ze-4 ngokupholisa okucothayo (≤20 ° C / iyure)
- Umphezulu imfezeko ukuxhathisa umhlwa: Akukho ukutsha kokusila. Akukho microcracks engaphantsi komhlaba. Yonke indawo idlula uhlolo lwefluorescent penetrant (ASTM E1417) kunye nokuqinisekisa uburhabaxa bomphezulu (Ra ≤ 0.8 µm ebusweni bokutywinwa)
- Ukulungela ukuwelda: Yonke imfuyo ekrwada isisombululo-i-annealed kwaye ifakwe kwi-ASTM A959, kunye nomxholo we-ferrite oqinisekisiwe ngaphantsi kwe-0.5% -ibaluleke kakhulu ukuphepha i-sigma-phase embrittlement kwi-multi-pass welds
Abanye banokuphikisa ukuba ukuphosa i-Incoloy800 ayinakwenzeka-inomdla kakhulu kwi-shrinkage porosity, kunzima kakhulu ukuyondla. Kodwa umgca wethu wokuphosa isanti uqhuba iinkqubo zokugada ezenzelwe ngokukodwa ii-alloys ze-Fe-Ni-Cr: i-ceramic-coated molds, i-preheated ukuya kwi-350 ° C, kunye nokuqiniswa kolwalathiso olunyanzeliswa ngokubandayo kunye nokubekwa kwe-rier okuqinisekiswe yi-MAGMAsoft simulation. Siphosa imizimba ye-valve ye-Incoloy800 ukuya kuthi ga kwi-120 kg-kungekhona njengeprototypes, kodwa njengeendawo zokuvelisa ezifanelekileyo kwi-API 6A PR2. Isitixo? Ukulawula isantya sokuqina ukuya kwi-±0.3 mm/s kulo lonke icandelo. Ayingomsebenzi wokuqikelela. Luyilo lwenkqubo eqhutywa yifiziksi.
Owona mbuzo wethu uxhaphakileyo wabathengi ayingokuthi "Ngaba ungayenza?" - "Ndiwunqanda njani umgibe obulele ibhetshi yethu yokugqibela?" Ke sihlome uphononongo lobunjineli kwangethuba: Ukuqinisekiswa kwe-GD&T ngokuchasene nenjongo yokusebenza (hayi nje ukuthobela ukuthotyelwa), imodeli yokwandisa i-thermal yokukhwelana kweflange, kunye nezindululo ze-bolt-torque ezisekwe kumandla okwenene wesivuno sobushushu obunikezelweyo. Kwikota yokugqibela, siphawule uyilo apho ubukhulu bodonga obuchaziweyo buya kudlula isantya esibalulekileyo sokupholisa kwi-carbide precipitation-ecebisa i-geometry tweak endaweni yonyango olubi kakhulu lwe-post-weld. Oko kugcina iiveki ezintathu kunye ne-18,000 yeedola ekusebenzeni kwakhona.
Ukuba ufuna izinto ze-Incoloy800 ezisinda kwiiyure ezingama-30,000 kwi-800 ° C ngaphandle kokukalwa, ukuvuza, okanye ukugqwesa-ke ufuna ngaphezulu kokuthotyelwa kwezinto ezibonakalayo. Ufuna iqabane eliphatha i-alloy chemistry njengendawo yokuqala, hayi umgca wokugqibela. Ngubani oqondayo ukuba i-AMS 5387 cobalt nozzles kunye ne-Incoloy800 yezindlu zepompo zabelana ngoqeqesho oluphambili olufanayo: ukulawula i-microstructure ngenyathelo ngalinye lenkqubo. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. lusebenzisa olo qeqesho mihla le—kungekhona njengethiyori, kodwa njengoqheliselo olulungelelanisiweyo. Kumsebenzi obalulekileyo wobuthunywa, akukho nto ithatha indawo yamava enziwe kwiindlela zokusilela kwihlabathi lokwenyani. Yiloo nto echaza inyaniso Umzi-mveliso we-Incoloy800.
