Simbi Isina Kushanda Pfupiso
Simbi isina ngura: Rudzi rwesimbi inozivikanwa nekudzivirira ngura uye kusaita ngura, ine 10.5% chromium uye 1.2% kabhoni.
Simbi isina ngura chinhu chinoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana, inozivikanwa nekudzivirira ngura uye kugona kwayo kuita zvinhu zvakasiyana-siyana. Pakati pemhando dzakasiyana dzesimbi isina ngura, 304, 304H, 304L, uye 316 ndidzo dzinonyanya kushandiswa, sezvakatsanangurwa muASTM A240/A240M standard ye "Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and General Applications."
Magiredhi mana aya ndeemhando imwe chete yesimbi. Anogona kurongwa sesimbi dzisina ngura dzinoshandiswa kana dzagadzirwa zvichibva pachimiro chadzo uye sesimbi dzisina ngura dzinoshandiswa nechromium-nickel dzinosvika mazana matatu zvichienderana nechimiro chadzo. Musiyano mukuru pakati padzo uri muchimiro chadzo chemakemikari, kuramba ngura, kuramba kupisa, uye nzvimbo dzekushandisa.
Simbi Isina Kusimba YekuAustenitic: Chinonyanya kugadzirwa nechimiro chekristaro che cubic chiri pakati pechiso (γ phase), chisina magineti, uye chinonyanya kusimbiswa kuburikidza nekushanda kwakadzika (izvo zvinogona kukonzera mamwe magineti). (GB/T 20878)
Kuumbwa kweMakemikoro uye Kuenzanisa Mashandiro (Zvichibva paASTM Standards)
304 Simbi Isina Chinovhara:
- Kuumbwa Kukuru: Ine chromium inosvika 17.5-19.5% uye nickel inosvika 8-10.5%, ine kabhoni shoma (pasi pe0.07%).
- Zvivakwa zveMichina: Inoratidza simba rakanaka rekudhonza (515 MPa) uye kureba (kusvika 40% kana kupfuura).
304L Simbi Isina Kusimba:
- Kuumbwa Kukuru: Zvakafanana ne304 asi zvine kabhoni shoma (pasi pe0.03%).
- Zvivakwa zveMichina: Nekuda kwehuwandu hwakaderera hwekabhoni, simba rekudhonza rakaderera zvishoma pane 304 (485 MPa), nekureba kwakafanana. Huwandu hwakaderera hwekabhoni hunowedzera mashandiro ayo ekuwelda.
304H Simbi Isina Chinovhara:
- Kuumbwa Kukuru: Huremu hwekabhoni hunowanzova pakati pe0.04% kusvika 0.1%, ne manganese yakaderera (kusvika pa0.8%) uye silicon yakawedzera (kusvika pa1.0-2.0%). Huremu hwe chromium ne nickel hwakafanana ne304.
- Zvivakwa zveMichina: Simba rekudhonza (515 MPa) uye kureba kwakafanana ne304. Ine simba rakanaka uye kusimba pakupisa kwakanyanya, zvichiita kuti ikodzere nzvimbo dzinopisa zvakanyanya.
316 Simbi Isina Chinovhara:
- Kuumbwa Kukuru: Ine 16-18% chromium, 10-14% nickel, uye 2-3% molybdenum, ine kabhoni iri pasi pe0.08%.
- Zvivakwa zveMichina: Simba rekudhonza (515 MPa) uye kureba (kupfuura 40%). Rinodzivirira ngura zvakanyanya.
Kubva pakuenzanisa kuri pamusoro apa, zviri pachena kuti mhando ina idzi dzine hunhu hwakafanana hwemakanika. Musiyano uri mukugadzirwa kwadzo, izvo zvinoita kuti pave nekusiyana kwekudzivirira ngura uye kudzivirira kupisa.
Kuramba Kupisa Kwesimbi Isina Stainless uye Kuenzanisa Kuramba Kupisa
Kuramba Kuora:
- 316 Simbi Isina Chinovhara: Nekuda kwekuvapo kwemolybdenum, ine simba rekudzivirira ngura kupfuura 304 series, kunyanya kurwisa chloride corrosion.
- 304L Simbi Isina Kusimba: Nekuda kwehuwandu hwayo hushoma hwekabhoni, inewo simba rakanaka rekudzivirira ngura, yakakodzera nharaunda dzinoparadza. Simba rayo rekudzivirira ngura harina kunyanya kuderera pane 316 asi rinodhura zvishoma.
Kuramba Kupisa:
- 316 Simbi Isina Chinovhara: Muumbirwo wayo we chromium-nickel-molybdenum yakawanda unopa kusimba kuri nani pakupisa kupfuura 304 stainless steel, kunyanya ne molybdenum ichisimudzira kusimba kwayo kwe oxidation.
- 304H Simbi Isina Chinovhara: Nekuda kwehuwandu hwayo hwekabhoni yakawanda, manganese shoma, uye silicon yakawanda, inoratidzawo kudzivirirwa kwakanaka pakupisa kwakanyanya.
Minda yeSimbi Isina Stainless
304 Simbi Isina Chinovhara: Chiyero chepasi chinodhura uye chinoshandisika zvakasiyana-siyana, chinoshandiswa zvakanyanya mukuvaka, kugadzira, uye kugadzira chikafu.
304L Simbi Isina Kusimba: Shanduro ye304 ine kabhoni shoma, yakakodzera makemikari neinjiniya yemugungwa, ine nzira dzekugadzirisa dzakafanana ne304 asi yakakodzera zviri nani nharaunda dzinoda kuramba ngura zvakanyanya uye kusanyanya kudhura.
304H Simbi Isina Chinovhara: Inoshandiswa muma superheaters uye ma reheaters emaboilers makuru, mapaipi emhepo, ma heat exchangers muindasitiri ye petrochemical, uye mamwe maapplication anoda ngura yakanaka uye kushanda zvakanaka pakupisa kwakanyanya.
316 Simbi Isina Chinovhara: Inoshandiswa zvakanyanya mumichina yekugadzira pulp nepepa, maindasitiri makuru, michina yekugadzira nekuchengetedza makemikari, michina yekunatsa, michina yekurapa neyemishonga, mafuta negesi zviri kunze kwegungwa, nharaunda dzegungwa, uye midziyo yekubikira yepamusoro-soro.
Nguva yekutumira: Gunyana-24-2024