I-AISI 304: imininingwane. Insimbi engenalutho

I-AISI 304, izici zobuchwepheshe ongazitholayo kulesi sihloko, luhlobo lwezinga eliyisisekelo emndenini wama-steels angenalutho. Lezi zinto zensimbi ye-austenitic enokuqukethwe okuphansi kwekhabhoni. Njengoba ujwayele amazinga wombuso asetshenziswa eRussia, ungaqonda ukuthi insimbi 08Х18Н10 iyi-analogue.

Lezi zinto zi-acid-resistant, ngaphezu kwalokho, ikwazi ukuboniswa isikhathi esifushane emazingeni okushisa angafika ku-900 ° C. Kodwa lezi zici ezihlukile azizona kuphela okufanele zibhekiswe kuzo, eziningi zazo, noma ngaphezulu, ikakhulukazi, ezizoxoxwa ngezansi.

Ukucaciswa kobuchwepheshe

I-AISI 304, izici zobuchwepheshe okufanele zifundwe ngaphambi kokuthenga, zibe nobukhulu obuphakathi kuka-7.9 kuya ku-7.93 g / cm ³ . Amandla okuqamba ama-505 MPa, kanti amandla okukhiqiza angama- 215 MPa. Vickers kanzima ngu-129, ubukhuni bukaKnoop ngu-138. Uma ungumthengi wangasese, kufanele uqaphele ukuhambisana komkhiqizo we-GOST.

I-AISI 304, izici zobuchwepheshe okumele zikusize wenze ukhetho olufanele, unomdlandla ka-70%. Lokhu kuyiqiniso uma ubukhulu beshidi buyi-50 mm. I-modulus ye-elasticity yezinto ezibonakalayo ihluka kusukela ku-193 ukuya ku-200 GPa. I-modar ye-shear yi-86 GPa. Ekamelweni lokushisa, ukukhishwa kwamagnetic kuyinto 1.008. Ukumelana kagesi kulingana nomkhawulo 7.2e-005 ohm-cm, okuyiqiniso ekushiseni kwama-20 ^o C. Le parameter ishintsha ku-1.16E-04 uma izinga lokushisa likhuphukela ku-650 ^o C.

Abathengi abaningi banesithakazelo ekushiseni okuqondile, kulokhu kuba yi-0.5 kJ / (g · K). Ungase ube nesithakazelo endaweni yokuqhafaza, ihlukahluka kusukela ngo-1400 kuya ku-1455 ^o C. Ukuqhutshwa kwe-thermal okuyi-thermal kuyinto engu-16.2 W / (m · K).

Uhlelo lokusebenza oluyisisekelo kanye nezakhiwo ezikhethekile

I-AISI 304, izici zobuchwepheshe ezinikezwe ngenhla, zisetshenziselwa ukwakha izinhlelo zokususa umoya nokushisa, kanye nama-chimneys. Izinto ezivelele zizibonakalise ekwenzeni imishini yokugcina, ukukhiqiza nokuthutha iwayini, ubhiya, ubisi nezinye iziphuzo, kanye nama-reagents amakhemikhali. Insimbi isetshenziselwa ukwakhiwa kwemishini yokudla kanye namabhizinisi amakhemikhali, kanye nezikhungo zomphakathi zokudla.

Ngosizo lwawo, benza izitsha zetafula nekhishi, kanye namapayipi ngezinhloso ezahlukene. Insimbi iwa futhi ngesisekelo sezinto zokwakha. Iphepha le-AISI 304 liyizinto eziyinhloko ebangeni elivela emndenini wama- staelless staels. Phakathi kwezithako kuqukethe i-cr, okuyiyo ekubunjweni kufanele okungenani ibe ngu-18%. Ngokuqondene no-Ni, ivolumu yalo ngokumisa ngu-10%. Lokhu okuqukethwe kokuqala kulezi zithako kubangela ukwakheka koqweqwe lwe-oxide emkhathini, okunikeza ukumelana okubonakalayo emiphumeleni yamakhemikhali ahlukene. Lezi zakhi ezakhiweni zenza kube lula ukukhombisa izakhiwo ze-antiferromagnetism.

Ulwazi lokubunjwa

I-sheet ye-stainless steel AISI 304 iyingxenye ethile, njengoba ishiwo ngenhla, yeCr, okuyinto ekubunjweni ingaqukatha ebangeni eli-18 ukuya ku-20%. Ngokuqondene neC, okuqukethwe kwayo okuphezulu kunama-0.08%. Fe in the material kungenziwa equkethwe umthamo kusuka 66.345 kuya 74%, ngokuqondene Mn, ngakho uhlanganisa okungenani 2%. Ithi kushidi liqukethe kusuka ku-8 kuya ku-10,5%, ngokuqondene no-P no-S, ngakho-ke okuqukethwe kuqukethe inani eliphakeme lika-0.045-0.03%, ngokulandelana.

Incazelo yensimbi

Umkhiqizo ochazwe kulesi sihloko uthole ukusabalalisa kwawo ekukhiqizeni izakhiwo zensimbi ezibunjiwe nezikhethiwe, imishini yasendlini kanye nezingxenye zokufakelwa kwephayiphi. Uma sisho ukuma kweshidi, insimbi ingahle ibekwe ezintweni ezishisayo eziphephile futhi ezibandayo, njengoba kunqunywe ubuchwepheshe bokukhiqiza. Insimbi flat igcwaliswa ngesimo imiqulu kanye amashidi. Ubuso bendwangu ekwenzeni inqubo yokukhiqiza ingacutshungulwa ngendlela ethile, ngenxa yalokho, kungenzeka ukuthola izinhlobo ezilandelayo zomhlaba:

• Isibuko;
• Ground;
• Matte.

Kuthengiswa kukhona ipayipi engenasipuni, eyenziwe yi-welding welding method. Lezi zinto azihlanganisiwe ezindaweni lapho umonakalo noma imfucumfucu yemishini iyenziwe khona. Izitsha ezenziwe ngale nsimbi zingasetshenziswa ukuthutha nokugcina imikhiqizo yemboni yamakhemikhali, imboni yokudla. Esimweni sokuqala sikhuluma ngama-reagents amancane amakhemikhali.

Ngendlela yombhobho, insimbi ingaba nesigaba esiphambene nesigxathu, esiyindilinga noma sesikwele. Ngendlela yokukhiqiza, imikhiqizo ingaba yinkimbinkimbi noma ifakwe kagesi. Ukubheka kulezi zimo kungase kube phansi, matt noma isibuko. I-AISI 304 (i-GOST 08Х18Н10) isetshenziselwa ukukhiqizwa kwezingulube ze-furs, kvass kanye nobhiya, kanye nokukhiqizwa kwemishini, izinsimbi zokupholisa, izibhamu, imishini yobisi, izitsha ze-cryogenic, ama-evaporator, amapaneti.

Izakhiwo ze-AISI 304 ipayipi yensimbi

Kusukela ekuchazwe kulesi sihloko, ipayipi yensimbi engenasici ikhiqizwa, enezici ezifanayo zobuchwepheshe njengoba kuchazwe ngenhla. Le mikhiqizo isetshenziselwa ukubeka amapayipayipi ngoba ukuxhumana kulokhu kuhamba kahle kakhulu, kunqabile ukubola, ungangeni ekusebenzeni kwamakhemikhali nezinye izinto futhi unamandla okuzilungisa uma kwenzeka umonakalo.

Amapayipi anjalo awasho ukuguqulwa nokukhwabanisa, ane-revolution ye-chromium oxide, ehlinzeka ngokumelene nemvelo yangaphandle. Imikhiqizo inezikhwepha ezinhle, iyakwazi ukukhwelisa ngokugcwele, ibe nezinga eliphakeme lokuguquguquka futhi lingamelana nezinguquko zokushisa. Zonke izimfanelo eziyisisekelo zigcinwa ngisho nangaphansi kwezimo zokushisa okubi kakhulu. Imikhiqizo enjalo ibhekwa yisikhathi eside sokusebenzisa, kulula ukufakwa futhi kulula ukufakwa.

Ukusetshenziswa kwepayipi yensimbi engagqwali

Iphayiphu engenasipuni ithola ukusabalalisa kwayo cishe yonke indawo. Ibukeka obuhle obunikeza ithuba lokubeka kunoma yikuphi ukungaphakathi. Ipayipi yensimbi engenasici ingasetshenziselwa ukwakha izicingo, izitimela nezitebhisi, izakhiwo zensimbi ezibunjiwe nezikhethiwe, lapha ungabandakanya amapayipi angama-rectangular and square, kanye nemikhiqizo yephrofayela. Lezi zimphayiphi zisetshenziswa uma zibeka izingxenye ezibalulekile zepayipi, zingaba yingxenye yesimiso sokukhipha imoto, futhi isetshenziswe ekwakhiweni kwezinto zokukhipha kanye nezinsimbi.

Incazelo ye-bendless steel bends

Amathinta AISI 304 angatholakala nanamuhla edayiswayo. Zingaba nazo zonke izinhlobo zendawo, okukhulunywe ngabo ngenhla, njengendlela eyengeziwe eyetshenziselwa ubuso obuswe. Amathinta angagxiliwe noma avamile. Zakhiwa ngokuvumelana nesilinganiso futhi zinekamelo lokuzungeza ngaphakathi kwe-1.5 ububanzi besiteji. Ubuningi bodonga buhlukahluka kusuka ku-1 kuya ku-9 mm, kanti ububanzi buvela kusuka ku-12 kuya ku-406 mm.

Incazelo ye wireless steel wireless

I-AISI 304 yocingo ikhiqizwa ngokuhambisana namazinga omhlaba, ububanzi besayizi buyahlukahluka kusuka ku-1.5 kuya ku-10 mm. Ungathenga izinto zokuqina okuhlukile, uma kunezinhlobonhlobo ezilula, kulokhu leli pharamitha liyi-500 N / mm². Uma ufisa, ungathenga ukuqina kwentwasahlobo yocingo, lapho kuzobekwa khona ngezinga elilandelayo le parameter: 1400 N / mm².

Ukwelashwa kungaba matte nge-coating noma isibuko. Insimbi isetshenziselwa ukudla, ukwakhiwa, amakhemikhali, nezimboni zemithi. Ingasetshenziswa ekwakhiweni kwezakhiwo zokwakha, ama-electrodes, iziphethu, ubucwebe nezitsha.

Isiphetho

Insimbi engenalutho ithole ukusabalalisa kwayo okubanzi, kuyadingeka nabathengi abavamile nabachwepheshe, ngoba kuyinto yonke. Unesibonakaliso esivelele sokumelana nokushisa, kanye ne-oxidation. I-weldability enhle kakhulu futhi inezindawo eziphansi kakhulu zokushisa.