Awọn bi-simẹnti be tiaustenitic alagbara, irinsimẹnti jẹ austenite + carbide tabi austenite + ferrite. Itọju igbona le mu ilọsiwaju ipata ti awọn simẹnti irin alagbara irin austenitic.
Iwọn deede ti Irin Alagbara Austenitic | ||||||||
| AISI | W-stoff | DIN | BS | SS | AFNOR | UNE / IHA | JIS | UNI |
| 304 | 1.4301 | X5 KrNi 18 9 | 304 S 15 | 2332 | Z 6 CN 18.09 | F.3551 | SUS 304 | X5CrNi18 10 |
| 305 | 1.4303 | X5 CrNi 18 12 | 305 S 19 | - | Z 8 CN 18.12 | - | SUS 305 | X8CrNi19 10 |
| 303 | 1.4305 | X12 CrNiS 18 8 | 303 S 21 | 2346 | Z 10 CNF 18.09 | F.3508 | SUS 303 | X10CrNiS 18 09 |
| 304L | 1.4306 | X2 CrNiS 18 9 | 304 S 12 | 2352 | Z 2 CN 18.10 | F.3503 | SUS 304L | X2CrNi18 11 |
| 301 | 1.4310 | X12 CrNi 17 7 | - | 2331 | Z 12 CN 17.07 | F.3517 | SUS 301 | X12CrNi17 07 |
| 304 | 1.4350 | X5 KrNi 18 9 | 304 S 31 | 2332 | Z 6 CN 18.09 | F.3551 | SUS 304 | X5CrNi18 10 |
| 304 | 1.4350 | X5 KrNi 18 9 | 304 S 31 | 2333 | Z 6 CN 18.09 | F.3551 | SUS 304 | X5CrNi18 10 |
| 304LN | 1.4311 | X2 CrNiN 18 10 | 304 S 62 | 2371 | Z 2 CN 18.10 | - | SUS 304 LN | - |
| 316 | 1.4401 | X5 CrNiMo 18 10 | 316 S 16 | 2347 | Z 6 CND 17.11 | F.3543 | SUS 316 | X5CrNiMo17 12 |
| 316L | 1.4404 | - | 316 S 12/13/14/22/24 | 2348 | Z 2 CND 17.13 | SUS316L | X2CrNiMo17 12 | |
| 316LN | 1.4429 | X2 CrNiMoN 18 13 | - | 2375 | Z 2 CND 17.13 | - | SUS 316 LN | - |
| 316L | 1.4435 | X2 CrNiMo 18 12 | 316 S 12/13/14/22/24 | 2353 | Z 2 CND 17.13 | - | SUS316L | X2CrNiMo17 12 |
| 316 | 1.4436 | - | 316 S 33 | 2343 | Z 6 CND18-12-03 | - | - | X8CrNiMo 17 13 |
| 317L | 1.4438 | X2 CrNiMo 18 16 | 317 S 12 | 2367 | Z 2 CND 19.15 | - | SUS 317 L | X2CrNiMo18 16 |
| 329 | 1.4460 | X3 CrNiMoN 27 5 2 | - | 2324 | Z5 CND 27.05.Az | F.3309 | SUS 329 J1 | - |
| 321 | 1.4541 | X10 CrNiTi 18 9 | 321 S 12 | 2337 | Z 6 CND 18.10 | F.3553 | SUS 321 | X6CrNiTi18 11 |
| 347 | 1.4550 | X10 CrNiNb 18 9 | 347 S 17 | 2338 | Z 6 CNNb 18.10 | F.3552 | SUS 347 | X6CrNiNb18 11 |
| 316Ti | 1.4571 | X10 CrNiMoTi 18 10 | 320 S 17 | 2350 | Z 6 CNDT 17.12 | F.3535 | - | X6CrNiMoTi 17 12 |
| 309 | 1.4828 | X15 CrNiSi 20 12 | 309 S 24 | - | Z 15 CNS 20.12 | - | SUH 309 | X16 CrNi 24 14 |
| 330 | 1.4864 | X12 NiCrSi 36 16 | - | - | Z 12 NCS 35.16 | - | SUH 330 | - |
1. Itọju Ooru Solusan
Sipesifikesonu gbogbogbo ti itọju igbona ojutu ni: gbigbona simẹnti si 950 ° C - 1175 ° C ati gbigbe sinu omi, epo tabi afẹfẹ lẹhin titọju ooru lati tu awọn carbides patapata ni irin alagbara, irin lati gba eto-alakoso kan. Yiyan iwọn otutu ojutu da lori akoonu erogba ninu irin simẹnti. Awọn ti o ga ni erogba akoonu, awọn ti o ga ni ri to ojutu otutu ti a beere.
Lati dinku iyatọ iwọn otutu laarin dada ti simẹnti irin ati mojuto lakoko ilana alapapo, ọna alapapo ti itọju ojutu ti irin alagbara austenitic yẹ ki o wa ni preheated ni iwọn otutu kekere ati lẹhinna yara kikan si iwọn otutu ojutu. Akoko idaduro yẹ ki o pọ si ni ibamu bi sisanra ogiri ti simẹnti n pọ si.
Alabọde itutu agbaiye fun itọju ojutu le jẹ omi, epo tabi afẹfẹ, eyiti omi jẹ lilo julọ. Itutu afẹfẹ jẹ dara nikan fun awọn simẹnti irin tinrin.
Awọn pato ti Itọju Solusan Ri to ti Cast Austenitic Alagbara Irin | |||
| Ipele ni China | Deede ite Abroard | Ojutu otutu / ℃ | Lile / HBW |
| ZG03Cr18Ni10 | / | 1050-1100 | / |
| ZG0Cr18Ni9 | / | 1080 - 1130 | / |
| ZG1Cr18Ni9 | G-X15CrNi18 8 (Ipe German) | 1050-1100 | 140-190 |
| ZGCr18Ni9Ti | 950-1050 | 125-180 | |
| ZGCr18Ni9Mo2Ti | X18H9M2 (Ipe Russian) | 1000 - 1050 | 140-190 |
| ZG1Cr18Ni12Mo2Ti | X18H12M2 (Ipe Russian) | 1100 - 1150 | / |
| ZGCr18Ni11B | X18H11B (Ipe Russian) | 1100 - 1150 | / |
| ZG03Cr18Ni10 | CF-3 (Ipe AMẸRIKA) | 1040-1120 | / |
| ZG08Cr19Ni11Mo3 | CF-3M (Ipe AMẸRIKA) | 1040-1120 | 150-170 |
| ZG08Cr19Ni9 | CF-8 (Ipe AMẸRIKA) | 1040-1120 | 140-156 |
| ZG08Cr19Ni10Nb | CF-8C (Ipe AMẸRIKA) | 1065 - 1120 (Imuduro ni 870 - 900) | 149 |
| ZG07Cr19Ni10Mo3 | CF-8M (Ipe AMẸRIKA) | 1065-1120 | 156-210 |
| ZG16Cr19Ni10 | CF-16F (Ipe AMẸRIKA) | 1095-1150 | 150 |
| ZG2Cr19Ni9 | CF-20 (Ipe AMẸRIKA) | 1095-1150 | 163 |
| ZGCr19Ni11Mo4 | CG-8M (Ipe AMẸRIKA) | 1040-1120 | 176 |
| ZGCr24Ni13 | 1095-1150 | 190 | |
| ZG1Cr24Ni20Mo2Cu3 | 1100 - 1150 | / | |
| ZG2Cr15Ni20 | CK-20 (Ipe AMẸRIKA) | 1095-1175 | 144 |
| ZGCr20Ni29Mo3Cu3 | CH-7M (Ipe AMẸRIKA) | 1120 | 130 |
| ZG1Cr17Mn13N | 1100 | 223-235 | |
| ZG1Cr17Mn13Mo2CuN | 1100 | / | |
| ZG0Cr17Mn13Mo2CuN | 1100 | 223-248 | |
2. Iduroṣinṣin
Irin alagbara, irin Austenitic ni o ni ipata ti o dara julọ lẹhin itọju ojutu. Bibẹẹkọ, nigba ti simẹnti naa ba tun gbona si 500°C-850°C tabi simẹnti naa n ṣiṣẹ ni iwọn iwọn otutu yii, chromium carbide yoo tun ṣaju lẹgbẹẹ aala ọkà austenite, ti o nfa ipata ala-ilẹ ọkà tabi fifọ weld. Iṣẹlẹ yii ni a npe ni ifamọ. Lati le mu ilọsiwaju ipata intergranular ti iru awọn simẹnti irin alagbara irin austenitic, o jẹ dandan lati ṣafikun awọn eroja alloying gẹgẹbi titanium ati niobium. Lẹhin itọju ojutu, tun gbona si 850 ° C - 930 ° C, lẹhinna dara ni kiakia. Ni ọna yii, awọn carbides ti titanium ati niobium ti wa ni akọkọ precipitated lati austenite, nitorina idilọwọ awọn ojoriro ti chromium carbide ati imudarasi awọn ọkà aala ipata resistance ti awọn alagbara, irin.
Akoko ifiweranṣẹ: Oṣu Kẹjọ-18-2021