Ipayipi ye-304 yensimbi engenasici kunye neenkcukacha ezipheleleyo
Iindlela eziqhelekileyo zokumakisha kwiimarike ziquka i-06cr19ni10 kunye ne-SUS304, apho i-06cr19ni10 ibhekisela kwimveliso esemgangathweni yesizwe, i-304 ibhekisela kwimveliso esemgangathweni ye-ASTM, kwaye i-SUS 304 ibhekisela kwimveliso esemgangathweni yaseJapan.
I-304 yintsimbi yendalo yonke engenasici, esetyenziswa ngokubanzi ukwenza izixhobo kunye neengxenye ezifuna ukusebenza kakuhle okubanzi (ukumelana nokubola kunye nokubumba). Ukuze kugcinwe ukuxhathisa kwe-corrosion yendalo yensimbi engenasici, intsimbi kufuneka iqulethe ngaphezu kwe-18% ye-chromium kunye ne-nickel engaphezu kwe-8%. I-304 insimbi engenasici luhlobo lwensimbi engenasici eveliswa ngokwemigangatho ye-ASTM yaseMelika.
Amandla okuqina σ b (MPa)≥515-1035
Amandla emveliso ngokwemiqathango σ 0.2 (MPa)≥205
Ubude δ 5 (%)≥40
Ukuncitshiswa kwendawo ψ (%) ≥?
Ukuqina: ≤ 201hbw; ≤92HRB; ≤210HV
Uxinzelelo (20 ℃, g / cm) ³): amanqaku asixhenxe alithoba kwisithathu
Indawo yokunyibilika (℃): 1398 ~ 1454
Umthamo wobushushu obuthile (0 ~ 100 ℃, kJ · kg-1k-1): 0.50
Thermal conductivity (w · M-1 · k-1): (100 ℃) 16.3, (500 ℃) 21.5
I-Coefficient yokwandiswa komgca (10-6 · k-1): (0 ~ 100 ℃) 17.2, (0 ~ 500 ℃) 18.4
Ukuxhathisa (20 ℃, 10-6 Ω· m2 / M): 0.73
Imodyuli elastiki yobude (20 ℃, kn / mm2): 193
I-304 yensimbi engenasici, i-Ni element ekubunjweni kwayo ibaluleke kakhulu, echaza ngokuthe ngqo ukuxhatshazwa kwe-corrosion kunye nexabiso le-304 yensimbi engenasici.
Izinto ezibaluleke kakhulu kwi-304 ziyi-Ni kunye ne-Cr, kodwa azikhawulelwanga kwezi zinto zimbini. Iimfuno ezithile zichazwe kumgangatho wemveliso. Ngokwesigwebo esiqhelekileyo kwishishini, i-304 insimbi engenasici ingaqwalaselwa nje ngokuba umxholo we-Ni ukhulu kune-8% kwaye umxholo we-Cr mkhulu kune-18%. Yingakho olu hlobo lwensimbi engenasici lubizwa ngokuba yi-18/8 yensimbi engenasici kwishishini. Enyanisweni, imigangatho yemveliso echaphazelekayo inezibonelelo ezicacileyo kakhulu kwi-304, kwaye le migangatho yeemveliso inomahluko othile kwiimilo ezahlukeneyo zensimbi engenasici. Nantsi imigangatho yemveliso eqhelekileyo kunye novavanyo.
Ukugqiba ukuba ingaba impahla yi-304 yensimbi engenasici, kufuneka ihlangabezane neemfuno zento nganye kumgangatho wemveliso. Ngethuba nje umntu engahambelani neemfuno, ayikwazi ukubizwa ngokuba yi-304 insimbi engenasici.
Amakhulu amathathu anesine
C
Mnu
P
S
Si
Cr
Ni
Imfuneko,%
≤0.08
≤2.00
≤0.045
≤0.030
≤1.00
18.0–20.0
8.0-11.0
I-ASTM a240 (i-chromium kunye ne-chromium ye-nickel ye-nickel ipleyiti yentsimbi, i-sheet sheet, kunye ne-strip strip ye-pressure essels kunye nezicelo jikelele)
Amakhulu amathathu anesine
C
Mnu
P
S
Si
Cr
Ni
N
Imfuneko,%
≤0.07
≤2.00
≤0.045
≤0.030
≤0.75
17.5–19.5
8.0–10.5
≤0.10
I-SUS 304
C
Mnu
P
S
Si
Cr
Ni
Imfuneko,%
≤0.08
≤2.00
≤0.045
≤0.030
≤1.00
18.0–20.0
8.0-10.5
I-SUS 304
C
Mnu
P
S
Si
Cr
Ni
Imfuneko,%
≤0.08
≤2.00
≤0.045
≤0.030
≤1.00
18.0–20.0
8.0-10.5
Le migangatho mine ingentla yimigangatho embalwa eqhelekileyo. Enyanisweni, ngaphezu kwale migangatho kukhankanyiwe kwi-ASTM kunye ne-JIS. Ngapha koko, umgangatho ngamnye uneemfuno ezahlukeneyo ze-304, ke ukuba ufuna ukumisela ukuba imathiriyeli yi-304, intetho echanekileyo kufuneka ibe kukuba iyahlangabezana neemfuno ze-304 kumgangatho wemveliso.