Ibyuma bitagira umwanda 904L 1.4539
Gusaba
Uruganda rukora imiti, uruganda rutunganya amavuta, inganda za peteroli, ibigega byangiza inganda zimpapuro, ibihingwa byangiza gaz desulfurisation, gukoreshwa mumazi yinyanja, sulfurike na acide fosifori. Bitewe na C-ibirimo bike, kurwanya ruswa hagati yimiterere nayo byizewe muburyo bwo gusudira.
Ibigize imiti
| Ikintu | % Kugeza ubu (muburyo bwibicuruzwa) |
| Carbone (C) | 0.02 |
| Silicon (Si) | 0.70 |
| Manganese (Mn) | 2.00 |
| Fosifore (P) | 0.03 |
| Amazi (S) | 0.01 |
| Chromium (Cr) | 19.00 - 21.00 |
| Nickel (Ni) | 24.00 - 26.00 |
| Azote (N) | 0.15 |
| Molybdenum (Mo) | 4.00 - 5.00 |
| Umuringa (Cu) | 1.20 - 2.00 |
| Icyuma (Fe) | Kuringaniza |
Ibikoresho bya mashini
Ibikoresho bya mashini (ku bushyuhe bwicyumba muburyo buteganijwe)
| Ifishi y'ibicuruzwa | |||||||
| C | H | P | L | L | TW / TS | ||
| Ubunini (mm) Icyiza. | 8.0 | 13.5 | 75 | 160 | 2502) | 60 | |
| Gutanga Imbaraga | Rp0.2 N / mm2 | 2403) | 2203) | 2203) | 2304) | 2305) | 2306) |
| Rp1.0 N / mm2 | 2703) | 2603) | 2603) | 2603) | 2603) | 2503) | |
| Imbaraga | Rm N / mm2 | 530 - 7303) | 530 - 7303) | 520 - 7203) | 530 - 7304) | 530 - 7305) | 520 - 7206) |
| Kurambura min. muri% | Jmin (Longitudinal) | - | 100 | 100 | 100 | - | 120 |
| Jmin (Transvers) | - | 60 | 60 | - | 60 | 90 | |
Reba amakuru
| Ubucucike kuri 20 ° C kg / m3 | 8.0 | |
| Ubushyuhe bwa W / m K kuri | 20 ° C. | 12 |
| Modulus ya Elastique kN / mm2 kuri | 20 ° C. | 195 |
| 200 ° C. | 182 | |
| 400 ° C. | 166 | |
| 500 ° C. | 158 | |
| Ubushobozi bwihariye bwubushyuhe kuri 20 ° CJ / kg K. | 450 | |
| Kurwanya amashanyarazi kuri 20 ° C Ω mm2 / m | 1.0 | |
Gutunganya / gusudira
Uburyo busanzwe bwo gusudira kuri iki cyiciro cyibyuma ni:
- TIG-Welding
- MAG-Welding Ikomeye
- Welding ya Arc (E)
- Gusudira Ibishyimbo
- Welding Arc Welding (SAW)
Mugihe uhisemo icyuzuzo, impungenge zo kwangirika zigomba kwitabwaho, kimwe. Gukoresha ibyuma bisobekeranye byuzuza ibyuma birashobora gukenerwa kubera imiterere yicyuma gisudira. Ubushuhe ntibukenewe kubwiki cyuma. Kuvura ubushyuhe nyuma yo gusudira mubisanzwe ntabwo bisanzwe. Ibyuma bya Austenitike bifite 30% gusa yubushyuhe bwumuriro bwibyuma bitavanze. Ingingo yabo yo guhuza iri munsi yicyuma kitavanze rero ibyuma bya austenitis bigomba gusudwa hamwe nubushyuhe buke kuruta ibyuma bitavanze. Kugirango wirinde gushyuha cyangwa gutwikwa kumpapuro zoroshye, hagomba gukoreshwa umuvuduko mwinshi wo gusudira. Amasahani yinyuma yumuringa kugirango yange ubushyuhe bwihuse arakora, mugihe, kugirango wirinde gucikamo ibyuma byagurishijwe, ntabwo byemewe guhuza-isahani yumuringa winyuma. Iki cyuma gifite coefficient yo hejuru cyane yo kwagura ubushyuhe nkibyuma bitavanze. Kubijyanye nubushuhe bubi bwumuriro, hagomba gutegurwa kugoreka cyane. Iyo gusudira 1.4539 inzira zose, zirwanya uku kugoreka (urugero: gusudira inyuma-intambwe ikurikiranye yo gusudira, gusudira ukundi kumpande zinyuranye hamwe na kabiri-V buto yo gusudira, kugenera abasudira babiri mugihe ibice ari binini) bigomba kubahwa cyane. Kubyimbye byibicuruzwa birenga 12mm inshuro ebyiri-V butt weld igomba guhitamo aho kuba umwe-V butt weld. Inguni irimo igomba kuba 60 ° - 70 °, mugihe ukoresheje MIG-gusudira nka 50 ° birahagije. Kwirinda kwirundanyiriza hamwe bigomba kwirindwa. Gusudira gusudira bigomba gushyirwaho intera ngufi ugereranije hagati yacyo (bigufi cyane ugereranije nibyuma bitavanze), kugirango hirindwe ihinduka rikomeye, kugabanuka cyangwa guhindagurika. Ibikoresho bigomba gusya nyuma cyangwa byibuze bikarangwamo ibice. 1.4539 kubijyanye nicyuma cya austenitis weld hamwe nubushyuhe bwinshi bwinjiza ibiyobyabwenge byo gukora ubushyuhe burahari. Ingeso yubushyuhe irashobora kugarukira, niba icyuma gisudira kiranga ibintu biri munsi ya ferrite (delta ferrite). Ibiri muri ferrite kugeza 10% bigira ingaruka nziza kandi ntabwo bigira ingaruka kubirwanya ruswa muri rusange. Igice cyoroheje cyane gishoboka kigomba gusudwa (tekinike ya stringer) kuko umuvuduko mwinshi wo gukonjesha ugabanya kwizizirwa no gushyuha. Byaba byiza gukonjesha byihuse bigomba kwifuzwa mugihe cyo gusudira kimwe, kugirango wirinde kwangirika kwangirika kwimitsi no kwinjirira. 1.4539 irakwiriye cyane gusudira laser beam (gusudira A ukurikije itangazo rya DVS 3203, igice cya 3). Hamwe n'ubugari bwo gusudira ubugari buto buri munsi ya 0.3mm muburyo bwa 0.1mm ubunini bwibicuruzwa gukoresha ibyuma byuzuza ntabwo ari ngombwa. Hamwe nimashini nini yo gusudira ibyuma bisa byuzuza birashobora gukoreshwa. Hamwe no kwirinda okiside mu kirere cya laser beam gusudira ukoresheje gusudira inyuma, urugero nka helium nka gaze ya inert, icyuma cyo gusudira kirwanya ruswa nkicyuma fatizo. Ikibazo gishyushye gishobora gusudira ntikibaho, mugihe uhisemo inzira ikoreshwa. 1.4539 ni alos ikwiranye no gukata laser beam fusion hamwe na azote cyangwa gucana umuriro hamwe na ogisijeni. Impande zaciwe zifite uduce duto twibasiwe nubushyuhe kandi muri rusange nta kirangantego cya mirco bityo rero birashoboka. Mugihe uhisemo inzira ikoreshwa fusion yaciwe impande zirashobora guhinduka muburyo butaziguye. By'umwihariko, barashobora gusudira nta yandi mananiza. Mugihe gutunganya gusa ibikoresho bidafite ingese nka brush yicyuma, gutora pneumatike nibindi biremewe, kugirango bitabangamira passivation. Bikwiye kwirengagizwa gushira akamenyetso muri zone yo gusudira hamwe na oleaginous bolts cyangwa ubushyuhe bwerekana crayons. Kurwanya ruswa nyinshi kuriki cyuma kitagira umwanda gishingiye kumiterere ya homogeneous, compact passive layer hejuru. Gufata amabara, umunzani, ibisigazwa bya slag, icyuma cya tramp, spatters nibindi nkibyo bigomba kuvaho, kugirango bidasenya igipimo cya pasiporo. Kugirango usukure hejuru inzira zo gukaraba, gusya, gutoragura cyangwa guturika (umucanga wa silika idafite ibyuma cyangwa ibirahuri) birashobora gukoreshwa. Kwoza gusa ibyuma byohanagura ibyuma birashobora gukoreshwa. Gutoranya agace kamwe kogejwe mbere bikorwa no kwibiza no gutera, nyamara, akenshi gutoragura paste cyangwa ibisubizo bikoreshwa. Nyuma yo gutoragura witonze ukoresheje amazi bigomba gukorwa.
