Yintoni intsimbi engatyiwa ?
Izinto zensimbi ezingenasici azixhaphakanga nje kubomi bethu bemihla ngemihla, kodwa ikwasetyenziswa ngokubanzi kushishino olunzima, kushishino olulula kunye nezicelo zeshishini lokwakha. Intsimbi enganyangekiyo enganyangekiyo kwiasidi ibizwa ngokuba yintsimbi engatyiwayo. Yenziwe ngensimbi engenasici kunye ne-asidi-resistant steel. Ngamafutshane, intsimbi ekwaziyo ukumelana ne-atmospheric corrosion ibizwa ngokuba yi-stainless steel, kwaye intsimbi enokumelana ne-chemical media corrosion ibizwa ngokuba yi-acid-resistant steel. Iintlobo zetsimbi ezisetyenziswa ngokuqhelekileyo ziyi-304, 304L, 316, 316L, eziyi-300 ze-steels ze-austenitic stainless steel. Uthetha ukuthini u-304, 304L, 316, 316L? Enyanisweni, oku kubhekiselele kwisteel stainless umgangatho umgangatho wentsimbi, imigangatho yamazwe ahlukeneyo yahlukile, nceda ubhekiselele kwitheyibhile elandelayo ngeenkcukacha.
304yenziwe ngentsimbi eshayinayo
I-304 insimbi engenastainless yintsimbi yendalo yonke kwaye isetyenziswa ngokubanzi kunye nokumelana ne-corrosion, ukumelana nobushushu, amandla aphantsi obushushu kunye neempawu zoomatshini; ukusebenza kakuhle processing kunye nokuqina eliphezulu. Isetyenziselwa ngokubanzi ukwenza izixhobo kunye neengxenye ezifuna ukusebenza kakuhle okubanzi (ukumelana nokubola kunye nokubumba). Iyakwazi ukumelana nomhlwa emoyeni. Ukuba yindawo yemizi-mveliso okanye indawo engcoliseke kakhulu, kufuneka icocwe kwangethuba ukuze kuthintelwe ukubola. Iyakwazi ukumelana nomhlwa emoyeni. Ukuba yindawo yemizi-mveliso okanye indawo engcoliseke kakhulu, kufuneka icocwe kwangethuba ukuze kuthintelwe ukubola. I-304 insimbi engenastainless yintsimbi evunyiweyo kuzwelonke yodidi lokutya.
316yenziwe ngentsimbi eshayinayo
Umahluko omkhulu phakathi kwe-316 kunye ne-304 ekubunjweni kweekhemikhali kukuba i-316 iqulethe i-Mo, kwaye iyaqondwa ngokubanzi ukuba i-316 inokumelana nokugqwala okungcono kwaye ixhathise ngakumbi kwi-corrosion kwiindawo eziphezulu zokushisa ngaphezu kwe-304. Ingasetyenziselwa phantsi kobushushu obuphezulu. iimeko; umsebenzi olungileyo wokuqina (obuthathaka okanye ongeyo-magnetic emva kokucubungula); non-magnetic kwisimo sesisombululo esiqinileyo; ukusebenza kakuhle welding. Uluhlu olubanzi lwezicelo, ezifana neekhemikhali, idayi, iphepha, i-oxalic acid, isichumisi kunye nezinye izixhobo zemveliso, ishishini lokutya, izibonelelo kwiindawo eziselunxwemeni, ezikhethekileyoizihluzi zensimbi ezingenasicinjl.
“L”
Njengoko sonke siyazi, i-Stainless steel iqulethe izinto ezahlukeneyo, kunye nesinyithi esinomxholo oncitshisiweyo we-carbide kunomxholo oqhelekileyo uya kuboniswa ngokungeza "L" emva kwebanga-elifana ne-316L, 304L. Kutheni kufuneka sinciphise i-carbides? Ngokukodwa ukuthintela "i-intergranular corrosion". I-Intergranular corrosion, imvula ye-carbides ngexesha lobushushu obuphezulu be-welding yesinyithi, itshabalalisa ibhondi phakathi kwee-crystal grains, ukunciphisa kakhulu amandla omatshini esinyithi. Kwaye umphezulu wesinyithi uhlala ulungile, kodwa awukwazi ukumelana nokunkqonkqozwa, ngoko ke kuyingozi kakhulu ukuhlwa.
304Lyenziwe ngentsimbi eshayinayo
Njengentsimbi ephantsi kwekhabhoni ye-304, ukuxhathisa kwe-corrosion kufana nentsimbi ye-304 phantsi kweemeko eziqhelekileyo, kodwa emva kwe-welding okanye i-stress relief, ukuchasana kwayo kwi-corrosion intergranular kuhle kakhulu. Isenokugcina uxhathiso olululo lwe-corrosion ngaphandle konyango lobushushu kwaye ingasetyenziswa ku -196℃～800℃.
316Lyenziwe ngentsimbi eshayinayo
Njengoluhlu lwekhabhoni ephantsi ye-316 yensimbi, ngaphezu kweempawu ezifanayo njengentsimbi ye-316, inokumelana nokugqwala okuhle kwe-intergranular. Ingasetyenziselwa kwiimveliso ezineemfuno eziphezulu ze-anti-intergranular corrosion, kunye noomatshini bangaphandle kwimichiza, amalahle, kunye ne-petroleum, izityalo zemichiza kunye nezinye iindawo. Ukuchaphazeleka okuphezulu kwi-intergranular corrosion akuthethi ukuba izinto ezingekho phantsi kwekhabhoni zichaphazeleka ngakumbi kwi-corrosion. Kwimeko-bume ye-chlorine ephezulu, obu buntununtunu buphezulu. Umxholo we-Mo we-316L wenza ukuba insimbi ibe nokuchasana kakuhle kwi-corrosion ye-pitting kwaye ingasetyenziselwa ngokukhuselekileyo kwiindawo ezine-halogen ions ezifana ne-Cl-.
I-HENGKO isihluzi sentsimbi engenastainless eyenziwe nge-316 kunye ne-316L, inenzuzo yokuxhathisa ubushushu obuphezulu, ukuxhathisa okulungileyo kokuhlwa, amandla aphezulu, kunye namakhonkco okuhlola umgangatho ongqongqo ukuqinisekisa ukuba umgangatho weemveliso eziphuma kumzi-mveliso ziyawadlula amasiko.
Nalu uthelekiso lweeyantlukwano eziphambili kwiipropathi kunye neempawu zeentlobo zentsimbi engenasici 304, 304L, 316, kunye ne-316L:
| Ipropati/Uphawu | 304 | 304L | 316 | 316L |
|---|---|---|---|---|
| Ukuqamba | ||||
| Ikhabhoni (C) | ≤0.08% | ≤0.030% | ≤0.08% | ≤0.030% |
| I-Chromium (Cr) | 18-20% | 18-20% | 16-18% | 16-18% |
| I-Nickel (Ni) | 8-10.5% | 8-12% | 10-14% | 10-14% |
| I-Molybdenum (Mo) | - | - | 2-3% | 2-3% |
| Iipropati zoomatshini | ||||
| Amandla Okuqina (MPa) | 515 imiz | 485 imiz | 515 imiz | 485 imiz |
| Isivuno Amandla (MPa) | 205 imiz | 170 imiz | 205 imiz | 170 imiz |
| Ubude (%) | 40 imiz | 40 imiz | 40 imiz | 40 imiz |
| Ukunyangwa kokuMhlwa | ||||
| Ngokubanzi | Kulungile | Kulungile | Ngcono | Ngcono |
| Iindawo zekloridi | Phakathi | Phakathi | Kulungile | Kulungile |
| Ukuqulunqwa | Kulungile | Ngcono | Kulungile | Ngcono |
| Ukuweldability | Kulungile | Egqwesileyo | Kulungile | Egqwesileyo |
| Usetyenziso | I-Cookware, i-architectural trim, izixhobo zokulungisa ukutya | Izikhongozeli zekhemikhali, iindawo ezidityanisiweyo | Iindawo zaselwandle, izixhobo zekhemikhali, amayeza | Iindawo zaselwandle, ulwakhiwo oludityanisiweyo |
1. Ukubunjwa: I-316 kunye ne-316L ine-molybdenum eyongezelelweyo eyandisa ukuchasana kwabo kwi-corrosion, ngakumbi kwiindawo ze-chloride.
2. IiPropati zoomatshini: Iintlobo ze-'L' (304L kunye ne-316L) ngokubanzi zinamandla asezantsi kancinane ngenxa yokucutha kwekhabhoni yazo, kodwa zinika ukuwelda okungcono.
3. I-Corrosion Resistance: i-316 kunye ne-316L iphezulu ekuchaseni ukubola xa kuthelekiswa ne-304 kunye ne-304L, ngakumbi kwiindawo zaselwandle kunye ne-chloride ephezulu.
4. Ukubunjwa: Ukwahluka kwe-'L' (304L kunye ne-316L) zibonelela ngokwenziwa ngcono ngenxa yesiqulatho sekhabhoni esicuthiweyo.
5. I-Weldability: Umxholo wekhabhoni oncitshisiweyo kwi-304L kunye ne-316L unciphisa umngcipheko we-carbide precipitation ngexesha le-welding, okwenza ukuba bafaneleke ngakumbi kwizicelo ezidibeneyo kunabo abangewona u-L.
6. Izicelo: Izicelo ezinikezelweyo ziyimizekelo embalwa nje, kwaye uhlobo ngalunye lwensimbi engenasici lunokusetyenziswa kwezinye izicelo ezininzi ngokuxhomekeke kwiimfuno ezithile.
Qaphela: Iipropati ezichanekileyo zinokwahluka ngokuxhomekeke kumvelisi kunye neemeko ezithile zokusetyenzwa. Soloko ubhekisa kuluhlu lweenkcukacha zomenzi okanye imigangatho ngeenkcukacha ezichanekileyo.
Isixhobo sokucoca insimbi engenasici sinemibhobho yomoya echanekileyo, kwaye i-filter pores ifana kwaye isasazwa ngokulinganayo; Ukungena komoya okulungileyo, isantya sokuhamba kwegesi-ulwelo olukhawulezayo kunye nokwahlukana okwabiwe ngokulinganayo. Kukho iintlobo ngeentlobo zemilinganiselo yobungakanani kunye neentlobo zesakhiwo onokukhetha kuzo, kwaye zinokulungiswa ngokweemfuno. Inxalenye yentambo yensimbi engenasici idityaniswe ngokugqibeleleyo kunye negobolondo elikhupha umoya, eliqinileyo kwaye lingawi kwaye lihle; Isenokwakhelwa ngokuthe ngqo kwiqokobhe elingena umoya kunye nenkangeleko engena umoya kwaye akukho zincedisi ezongezelelweyo eziqinileyo.
Ngaba udidekile malunga nomahluko phakathi kwensimbi engenasici 304, 304L, 316, kunye ne-316L?
Sukuba nexhala, iqela lethu leengcaphephe e-HENGKO linokukunceda uqonde umahluko kwaye ufumane eyona ndlela ilungileyo yeprojekthi okanye isicelo sakho.
Qhagamshelana nathinamhlanje ukuze uqalise kwaye uthathe inyathelo lokuqala ukwenza isigqibo esinolwazi.
Ixesha lokuposa: Jun-04-2021
