DESCRIPTION
Uhlobo 347 / 347H insimbi engagqwali iyizinga le-austenitic lensimbi ye-chromium, equkethe i-columbium njengento eqinisayo. I-Tantalum nayo ingangezwa ukuze kuzuzwe ukuzinzisa. Lokhu kuqeda imvula ye-carbide, kanye nokugqwala kwe-intergranular kumapayipi ensimbi. Amapayipi ensimbi engagqwali angu-347 / 347H anikezela ngezakhiwo ezikhuphukayo nezigqamuka ingcindezi kunebanga elingu-304 no-304L. Lokhu kubenza bafanelekele ukuchayeka ekwaziseni kanye nokugqwala kwe-intergranular. Ngaphezu kwalokho, ukufakwa kwe-columbium kuvumela amapayipi angu-347 ukuba abe nokuphikiswa okuhle kakhulu kokugqwala, okungaphezu kwalokho kwamapayipi ensimbi engagqwali angu-321. Kodwa-ke, insimbi engu-347H ithatha indawo ephakeme yekhabhoni yokwakheka kwepayipi lensimbi engagqwali ebangeni 347. Ngakho-ke, amashubhu ensimbi angu-347H anikeza izinga lokushisa eliphezulu elithuthukisiwe kanye nezakhiwo ezinwabuzelayo.
347 / 347H IZIMPAHLA ZAMATHUBU EZINSIMBA EZINGAGQI
Okulandelayo yizakhiwo zamapayipi ensimbi engagqwali angu-347/347H ahlinzekwa yi-Arch City Steel & Alloy:
Ukumelana Nokugqwala:
- Ibonisa ukumelana ne-oxidation efana nezinye izinsimbi ezingenasici ze-austenitic
- Kukhethwa ngaphezu kwebanga 321 endaweni enamanzi kanye nezinye izinga lokushisa eliphansi
- Izakhiwo ezingcono zokushisa okuphezulu kuno-304 noma 304L
- Ukumelana okuhle nokuzwela ezindaweni zokushisa okuphezulu
- Ifanele okokusebenza okushiselwe esindayo okungenakubanjwa
- Isetshenziselwa okokusebenza okusebenza phakathi kuka-800 kuya ku-150°F (427 KUYA KU-816°C)
Ukushisela:
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347/347H amashubhu/amapayipi ensimbi engagqwali athathwa njengashisela kakhulu kuwo wonke amapayipi ensimbi esezingeni eliphezulu.
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Angakwazi ukushiselwa yizo zonke izinqubo zezohwebo
Ukwelashwa Kokushisa:
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347 / 347H amashubhu ensimbi engagqwali kanye namapayipi anikeza izinga lokushisa le-annealing elingu-1800 kuya ku-2000°F
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Bangakwazi ukukhululeka ekucindezelekeni ngaphandle kwengozi yokugqwala okulandelayo kwe-intergranular ngaphakathi kwebanga lemvula ye-carbide engu-800 kuya ku-1500°F.
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Ayikwazi ukwenziwa lukhuni ukwelashwa okushisa
Izicelo:
Amapayipi angu-347 / 347H avame ukusetshenziselwa ukwenziwa kwezinto okufanele zisetshenziswe ngaphansi kwezimo ezibi kakhulu zokugqwala. Futhi, zivame ukusetshenziswa ezimbonini zokuhluza i-petroleum. Izicelo ezinkulu zihlanganisa:
- Izinqubo zamakhemikhali okushisa okuphezulu
- Amashubhu okushintsha ukushisa
- Amapayipi omusi omfutho ophezulu
- Izinga lokushisa eliphakeme lomusi namapayipi/amashubhu okubhayela
- Amasistimu wokuqeda umsebenzi osindayo
- Ama-superheaters akhazimulayo
- Amapayipi okuhlanza okujwayelekile
UKWAKHIWA KWAKHEMICAL
| Ukwakheka Kwekhemikhali Okujwayelekile % (amanani aphezulu, ngaphandle uma kuphawuliwe) | ||||||||
| Ibanga | C | Cr | Mn | Ni | P | S | Si | Cb/Ta |
| 347 | 0.08 ubuningi | imiz: 17.0 ubuningi: 20.0 | 2.0 ubuningi | imiz: 9.0 ubuningi: 13.0 | 0.04 ubuningi | 0.30 ubuningi | 0.75 ubuningi | imiz:10x C ubuningi: 1.0 |
| 347H | iminithi: 0.04 ubuningi: 0.10 | imiz: 17.0 ubuningi: 20.0 | 2.0 ubuningi | imiz: 9.0 ubuningi: 13.0 | 0.03 ubuningi | 0.30 ubuningi | 0.75 ubuningi | imiz:10x C ubuningi: 1.0 |
Isikhathi sokuthumela: Oct-09-2020