Walxaha birta ah:

Waxyaalaha birta ah waa nooc ka mid ah walxaha, waxay ku dhowdahay dhalaalka muraayadda, taabo adag oo qabow, waxay ka tirsan tahay alaabta qurxinta avant-garde, waxay leedahay iska caabin daxal ah oo aad u fiican, qaabeynta, waafaqsanaanta iyo adkaanta iyo sifooyinka kale ee taxanaha, oo loo isticmaalo warshadaha culus. , warshadaha fudud, warshadaha alaabta guriga iyo qurxinta dhismaha iyo warshadaha kale.

Birta u adkeysata aashitada ee lagu tilmaamo birta aan dahsoon, waxa ay ka kooban tahay birta aan aashitada lahayn iyo birta u adkeysata aashitada laba qaybood, marka la soo koobo, waxa ay iska caabin kartaa daxalka atmospheric birta ah ee birta ah ee lagu magacaabo birta, waxa aanay iska caabin kartaa daxalka dhexdhexaadka ah ee kiimikada Marka la hadlayo, maadada chromium ee Cr waxay ka badan tahay 12% birta waxay leedahay sifooyin birta aan la taaban karin.

Kala soocidda birta aan-ahmaahda lahayn:

Waxaa jira habab badan oo loo kala sooci karo birta aan nadiifka ahayn, kuwaas oo kuwa ugu caansan ay yihiin kuwan soo socda.

Kala soocidda qaab-dhismeedka saadaasha:

Waxaa loo qaybin karaa birta austenitic ahama, ferrite ahama birta, martensitic ahama, duplex ahama birta, roobab adkaanta ahama.

Kala soocidda ka kooban kiimikada:

Asal ahaan waxa loo qaybin karaa chromium ahama (sida taxanaha ferrite, nidaamka martensite) iyo chromium nikkel ahama (sida nidaamka austenite, taxane aan caadi ahayn, taxane adag roobaadka) laba hab.

Marka loo eego nooca iska caabbinta daxalka:

Waxa loo kala qaybin karaa birta daxalka u adkaysata culayska, birta daxalka u adkaysata, birta daxalka u adkaysata, iwm.

Lagu kala saaray sifooyin shaqaynaya:

Waxaa loo qaybin karaa goynta bilaashka ah ee birta aan birta lahayn, birta aan birta lahayn ee birta ah, heerkulka hoose ee birta aan lahayn, birta birta ah ee xoogga sare leh.

Waxaa jira ku dhawaad ​​100 nooc oo ahama birta ah oo lagu daray heerar kala duwan oo adduunka ah, iyo horumarka sayniska iyo tignoolajiyada iyo horumarinta warshadaha iyo beeraha, darajooyinka birta cusub ayaa sidoo kale kor u kacaya. , chromium u dhiganta [Cr] iyo nikkel u dhigma [Ni] waxaa loo xisaabin karaa iyadoo loo eegayo ka kooban yahay kiimikaad, iyo qaab-dhismeedka yaryar iyo sifooyinka birta waxaa lagu qiyaasi karaa qiyaas ahaan iyadoo la isticmaalayo shaxda microstructure Schaeffler-Delong ahama.

Kala soocidda Matrix:

1, ferrite ahama steel.Chromium 12% ~ 30% caabbinta daxalka, adkaanta iyo alxanka kordhisaa kororka ee content chromium, iyo caabbinta daxalka chloride ay ka fiican tahay noocyada kale ee birta ahama.

2. Austenitic steel steel.Waxay ka kooban tahay in ka badan 18% chromium, qiyaastii 8% nikkel iyo qadar yar oo molybdenum ah, titanium, nitrogen iyo walxo kale.

3. Austenite-ferrite duplex ahama.Waxa uu leeyahay faa'iidooyinka austenite iyo ferrite ahama, oo uu leeyahay superplasticity.

Martensitic ahama birta.Awood sare, laakiin caag liidata iyo alxanka.

Isbarbardhigga nambarka birta ee caadiga ah iyo miiska cufnaanta

Shiinaha	Japan	USA	Kuuriyada Koonfureed	Midowga Yurub	Australia	Taiwan, Shiinaha	Cufnaanta (t/m3)
GB/T20878	JIS	ASTM	KS	BSEN	AS	CNS
12Cr13	SUS403	403	STS403	-	403	403	7.75
20Cr13	SUS420J1	420	STS420J1	1.4021	420	420J1	7.75
30Cr13	SUS420J2	-	STS420J2	1.4028	420J2	420J2	7.75
10Cr17	SUS430	430	STS430	1.4016	430	430	7.70
68Cr17	SUS440A	440A	STS440A	-	440A	440A	7.70
06Cr19Ni10	SUS304	304	STS304	1.4301	304	304	7.93
022Cr19Ni10	SUS304L	304L	STS304L	1.4306	304L	304L	7.93
06Cr17Ni12Mo2	SUS316	316	STS316	1.4401	316	316	7.98
022Cr17Ni12Mo2	SUS316L	316L	STS316L	1.4404	316L	316L	7.98
06Cr18Ni11Ti	SUS321	321	STS321	1.4541	321	321	7.93
06Cr18Ni11Nb	SUS347	347	STS347	1.455	347	347	7.98