QN1803 (304D) saxan bir ah oo aan lahayn
1. Sharaxaada:
Heerka badeecada cusub ee QN1803 waa nitrogen-kii ugu horreeyay ee adduunka ugu sarreeya, iska caabbinta daxalka sare, nikkel-badbaadinta austenitic ahama alaabada.
Iyada oo ku saleysan hubinta iska caabbinta daxalka u dhiganta 304 birta ah, xoogga maaddada ayaa la wanaajiyey, iyo walxaha
Qiimaha waa la dhimay, taas oo ka dhigaysa mid ka qiimo badan oo ka tartan badan suuqa marka loo eego 304 birta aan daahin.
Tilmaamaha naqshadaynta wax soo saarka cusub: nitrogen sare (≥2000ppm), chromium sare (≥18%), nikkel dhexdhexaad ah (~ 3.0%) iyo naxaas sare (≥1.5%).
Iyada oo loo marayo qalabka R&D dhijitaalka ah ee Thermo-Calc thermodynamic jaantus xisaabinta software-ka iyo falanqaynta xogta tijaabada ah, hagaajinta
walxaha alloying ee qayb kasta oo ka mid ah qayb kasta oo ka mid ah ma aha oo kaliya hagaajinaysaa iska caabinta daxalka ee alaabta, laakiin sidoo kale ka dhigaysa xoogga dhalidda ee QN1803
in ka badan 1.3 jeer 304.
QN1803 waxay leedahay sifooyinka soo socda:
1) Daxalka daxalka u dhigma PREN=Cr+3.3Mo+30N-Mn waxa uu ka sarreeyaa 19.0, kaas oo leh ugu yaraan iska caabbinta daxalka ee 304
Bir daxal laheyn.
2) iska caabbinta daxalka isku midka ah ee lagu daro hydrochloric acid, milo sulfuric acid, acetic acid + milix iyo deegaan kale ayaa aad uga fiican
304 bir ah.
3) caabbinta daxalka ayaa ka fiican 304 ee gobolka isticmaalka dhabta ah ka dib foorarsiga, shaabadeynta, xaalad adag iyo samaynta qabow kale.
4) xoogga wax-soo-saarku wuxuu ka badan yahay 1.3 jeer in ka badan 304 birta ah, waxayna leedahay dherer aan ka yarayn 45%. Xiro iska caabin iyo
waxqabadka daalku way ka fiican yihiin 304 birta ah.
5) waxqabadka alxanka wanaagsan, xoogga alxanka ka dib waa ka sarreeyaa in 304 ahama, iyo iska caabin daxalka waa.
oo la barbardhigi kara 304 bir ah.
2. Isbarbardhigga 304 walxood:
| Darajo | Kiimikada Compsition (Max %) | ||||||||||
| C | Si | Mn | P | S | Cr | Ni | Mo | Cu | N | PREN | |
| 304 | 0.04 | 0.4 | 1.02 | ≤0.035 | 0 | 18.1 | 8.02 | 0.02 | 0.1 | 0.05 | 18.96 |
| QN1803 | 0.07 | 0.41 | 6.32 | ≤0.035 | 0 | 18.2 | 3.03 | 0.12 | 1.62 | 0.24 | 22.43 |
| 1.4376 | ≤0.10 | ≤1.00 | 5.0-8.0 | ≤0.045 | ≤0.015 | 17-20.5 | 2.0-4.5 | / | / | ≤0.30 | / |
3. Isbarbardhigga Guryaha:
4. Bandhiga gariiradda iyo dhogorta leh:
5. Gaadhi xamuul ah:
6. Soodejinta konteenarada:
7.Codsiga:
Warshadaha dhismaha: saqafyada dhismaha, darbiyada, saqafyada, qaybaha qaabdhismeedka xambaara, iwm.
➢Albaabada qalabka iyo daaqadaha: sida biyo-mareennada sagxadaha, silsiladaha, silsiladaha, biraha slide, iwm.;
➢ Tuubooyinka alxanka lagu qurxiyo: sida deyrarka, isbaarooyinka, jaranjarooyinka jaranjarooyinka, daaqadaha amniga, iwm.;
➢ Tuubooyinka alxanka leh ee warshadaha: sida tuubooyinka gaaska, tuubooyinka wasakhda wasakhda warshadaha;
➢ Weelka haamaha warshadaha: sida weelasha refer, munaaradaha gaasta nadiifinta;
➢ Qalabka taranta: sida weelka lagu quudiyo doofaarka, naaxinta weel labanlaab ah oo dhar ah;
➢ Dhismayaasha dowladda hoose: sida meelaha basaska laga raaco, meelaha nadaafadda.
