Lapho onjiniyela becacisa izingxenye zensimbi engagqwali zamavalvu asebenza ngamanzi, amaphampu, noma amawintshi asogwini lolwandle, abadingi nje insimbi—badinga ukuqina kohlangothi ngaphansi kwebha engu-300, ukumelana nokugqwala ezindaweni ezigcwele i-chloride, kanye nobuqotho besakhiwo ngemva kokwelashwa kokushisa. Yingakho i utshalomali casting steel stainless factory akuyena umdayisi-kuyisandiso sobuchwepheshe sethimba lokuklama.
Sibone amaphrojekthi amaningi kakhulu emiswa esigabeni se-prototype ngoba i-Foundry iphatha insimbi engagqwali njenge-carbon steel: isango elifanayo, izinga lokupholisa elifanayo, iphrothokholi yokuhlola efanayo. Kodwa i-316 engenasici incipha ngo-12% ngaphezu kwe-iron cast ngesikhathi sokuqina. I-thermal conductivity yayo iyingxenye ye-aluminium. Futhi ungqimba lwaso lwe-oxide engaphezulu—olubalulekile ekudluleleni phambili—lwakheka kuphela lapho ukupholisa kulandela ukusakaza kwewindi okunembile okungu-5–10°C/min. Kwa-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., siphatha konke ukutshala imali kwensimbi engagqwali njengomcimbi we-metallurgical—hhayi inqubo yokwenza umumo.
Ukunemba Kuqala Ngaphambi Kokuba Isikhunta Sithelwe
Abathengi abaningi bacabanga ukuthi ukunemba kokutshala imali kuvela ekulawuleni ukuqina kwegobolondo le-ceramic. Ayikwenzi. Iqala nge-geometry yephethini ye-wax-nokuthi leyo geometry ihlangana kanjani nokuncipha kwe-alloy. Isibonelo: isilinda sephampu ye-piston eyenziwe nge-ASTM A473 Grade 316 kufanele ibambe ±0.05 mm ku-ID yebhore yonkana ubude obungu-280 mm. Sifinyelela lokhu ngokulinganisa ukunwetshwa kwe-wax ngokumelene nokufinyezwa kwe-alloy yokugcina sisebenzisa ukulingisa okushisayo kwangaphakathi—hhayi amashadi ajwayelekile. Ithimba lethu lamathuluzi lilungisa ama-engeli asalungiswa ngokunyuka okungu-0.15° ngokusekelwe kuma-gradients odonga, hhayi izifanekiso ezijwayelekile. Siqinisekise le ndlela kuwo wonke ama-run okukhiqiza angu-172 wemizimba yama-valve okucindezela; U-99.4% uphumelele ukuqinisekiswa kwe-CMM kwesihloko sokuqala ngaphandle kokusebenza kabusha.
Leli zinga lokulawula lidinga ukuhlanganiswa okuqondile. Asikukhiphi ukwakhiwa kwamagobolondo, ukucwiliswa kwe-waxing, noma ukulawulwa kwesithando somlilo. Isikhungo sethu esithobela i-ISO siphatha zonke ezintathu—futhi sizixhumanisa nedatha yesikhathi sangempela se-thermocouple evela ku-crucible ngayinye. Uma sincibilikisa i-316 engenabala, siqapha okuqukethwe komoyampilo okuncibilikisiwe ngokuqhubekayo. Kudlule u-25 ppm? Iqoqo licupha ukuphambukisa okuzenzakalelayo kuzinhlelo zokusebenza ezingabalulekile. Akukho okuhlukile.
Lapho Kuhlangana Ama-Cobalt Alloys kanye Nensimbi Engagqwali
Nakhu okuphuthelwa amaqembu amaningi okuthenga: ukutshala imali kwensimbi engagqwali akuhlukanisiwe nomsebenzi we-superalloy. Esikhungweni sethu, isithando somlilo esifanayo sishisisa i-AMS 5387 cobalt alloy kanye ne-CF8M engenasici. Kungani? Ngoba zombili zifuna isilawuli somkhathi esifanayo (i-vacuum + i-argon backfill), isikhunta esifanayo sokushisa ukushisa kwangaphambi kwesikhathi (120°C/h kufika ku-1,100°C), kanye namafasitela afanayo wesikhathi sokunyakaziswa (±90 imizuzwana). Lokhu kuziphatha kwezinqubo ezahlukene kusho ukuthi abalingisi bethu abangenabala bazuza njengefa izimiso ezifakazelwe zokuphatha ukushisa—akukho amajika okufunda okuhlola namaphutha.
Thatha izingxenye zephampu ezisekelwe ku-T800. Ukuqina kwazo (42–48 HRC) kudinga ukucishwa kwesixazululo ku-1,120°C okulandelwa ukucisha kwamanzi phakathi nemizuzwana engama-45. Sakhe leyo nsimbi yokucisha emgqeni wokulingisa—hhayi njengokucabanga kamuva. Umphumela: Ukuhlanekezelwa okunguziro kumahabhu okuhambisa amanzi angu-142 mm-diameter lapho abathengisi bangaphambili babike khona ukuphela okungu-0.18 mm.
- Amavalvu okucindezela: ASME B16.34 Class 600, aqinisekiswe ku-NACE MR0175/ISO 15156
- Izindlu zesilinda sephampu ye-Piston: I-GD&T-ithobela i-ASME Y14.5-2018 ngayinye, okuhlanganisa iphrofayili yezilawuli ezingaphezulu zama-flange wokukhwelana
- Amarola eshaft yewintshi yemoto yobunjiniyela: Ukuqina kuqinisekisiwe nge-ASTM E10 ngayinye, ukuqedwa okungaphezulu kuka-Ra ≤0.8 µm as-cast
- Imibhobho ye-cobalt alloy: Ukuzinza kwe-Dimensional kuqinisekisiwe ngemva kwemijikelezo yokushisa engu-500 phakathi kuka-−40°C kanye +220°C
Kungani “Izinto Ezisetshenziswayo Eziqinisekisiwe” Akukhona Ukumaketha Nje
"Sisebenzisa insimbi engagqwali eqinisekisiwe" ivela ku-83% wamawebhusayithi abahlinzeki. Kodwa ukuthola isitifiketi akusho lutho uma ukulandeleka kuma kuthegi yekhoyili. Esikhungweni sethu, yonke inombolo yokushisa igeleza ngokuqondile kusistimu yethu ye-ERP—namamephu aye ekulingiseni okuthile ngamakhodi elotho agcizelelwe nge-laser kuzo zonke izingxenye. Lapho ikhasimende licela uhlu lozalo lwento egcwele ye-oda le-valve ye-subsea, silethe imibiko yokuhlolwa komshini wokugaya, amalogi okuhlaziya ama-spectrographic, namarekhodi esikhathi sokucwiliswa kwesithando somlilo—konke kuhlanganiswe ezinombolweni zokusakaza ngazinye. Lelo zinga lokubonisa obala alikho inketho. Iyadingeka ukuze kuthotshelwe i-API 6A—futhi ibhakwe ekuhambeni kwethu komsebenzi, ayiboshiwe ukuze ihlolwe.
Sithola u-316, 304L, kanye ne-duplex 2205 ngokukhethekileyo ezigayweni ezinesitifiketi se-EN 10204 3.1—futhi siqinisekisa ikhemistri lapho siyithola sisebenzisa i-LIBS spectrometry ephathwa ngesandla. Uma i-chromium iwela ngaphansi kuka-16.5% kusampula engu-304L, yonke ikhoyili ivalelwa yodwa ngaphambi kokulayishwa. Akukho okuhlukile. Cha “lokhu kanye nje.”
Ukulethwa Kwangempela Kusho Ukubikezelwa Kwangempela
Cela abahlinzeki abahlanu isikhathi sokuhola ekutshalweni kwezimali kwensimbi engagqwali, futhi uzothola izimpendulo ezinhlanu—ezinobubanzi obuthatha amaviki angu-8 kuya kwangu-22. Okwethu kulungisiwe: amaviki ayi-14 endatshana yokuqala, amaviki ayi-10 okuphinda ama-oda-aqinisekisiwe. Kanjani? Ngokukhiya umthamo kusenesikhathi: U-30% weziteshi zethu zokwakha amagobolondo abekelwe amaphethini akhethekile, futhi iziko lethu le-vacuum induction lihlela ukushisa okungenabala kumabhulokhi akhethekile weviki onke. Awekho ama-alloys okushintshaniswa phakathi nesikhathi sokusebenza. Ayikho ingozi yokutheleleka. Akukho ukubambezeleka okumangalisayo okuvela ezinsizeni ezabiwe.
Lesi sithembiso siqinisekisa nsuku zonke. Ikota edlule, u-97.2% wama-oda ensimbi engagqwali athunyelwe ngaphambi noma ngedethi yokuzibophezela. Umehluko ongu-2.8%? Konke kulandelelwa ezinguqukweni zobunjiniyela ezicelwe yikhasimende ngemva kokugunyazwa kwamathuluzi—hhayi ukwehluleka kwenqubo yangaphakathi.
Uma ngabe iphrojekthi yakho elandelayo idinga uzakwethu ophatha utshalomali lwensimbi engagqwali njengensimbi, hhayi ukukhiqiza—udinga utshalomali casting steel stainless factory yakhelwe ukunemba, hhayi umthamo. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza ngaleyo ndlela—hhayi ngoba ilula, kodwa ngenxa yokuthi izicelo ezinengcindezi ephezulu, ukugqwala okukhulu, ezinokwethenjelwa okuphezulu azishiyi indawo yokuyekethisa. Ukunemba akuwona umnyango lapha. Isistimu yokusebenza.
