I-S31803 Duplex Stainless Steel: Ukumelana nokugqwala okuphezulu kunye namandla aphezulu kwizicelo zoshishino

I-S31803, ekwaziwa ngokuba yi-Duplex 2205 okanye i-F60, yintsimbi engagqwaliyo ephindwe kabini ehlonitshwa kakhulu kwimarike yehlabathi. Iyaziwa phantsi kwe-Unified Numbering System (UNS), le nto ixatyiswa kakhulu ngenxa yokumelana kwayo nokugqwala okugqwesileyo, amandla angcono oomatshini, kunye nokusebenza kwayo okuguquguqukayo kwiindawo ezinzima.

Ulwakhiwo lweeKhemikhali ezibalulekileyo kunye nolwakhiwo

Intsimbi engagqwali ye-S31803 ephindwe kabini inomxube olungeleleneyo wezinto ezidibanisayo ezinika iipropati zayo ezibalaseleyo:

• I-Chromium (Cr):Malunga ne-22% – Yonyusa ukumelana nokugqwala, ingakumbi ngokuchasene nokugqwala kwemingxuma kunye nokugqwala kwemingxuma.

• I-Nickel (Ni):Malunga ne-5.0–6.0% – Iphucula ukuqina kunye nokuqina.

• I-Molybdenum (Mo):Malunga ne-3.0% – Yonyusa ukumelana nokugqwala kwendawo, ingakumbi kwiindawo ezityebileyo ngekloridi.

• I-nitrogen (N):Malunga ne-0.18% – Yonyusa amandla kwaye inegalelo ekuchaseni uxinezeleko.

Isakhiwo esincinci esinamacandelo amabini, esidibanisa izigaba ze-ferritic kunye ne-austenitic, siphumela kwiipropati zoomatshini eziphindwe kabini kunezo zentsimbi ze-austenitic eziqinileyo ngelixa zigcina ukuguquguquka kunye nokuqina okuhle.

Iipropati kunye neeNzuzo eziBalaseleyo

Ukumelana Nokugqwala Okuphuculweyo

I-S31803 igqwesile ekumelaneni neentlobo ezahlukeneyo zokugqwala, kuquka:

• Ukugqwala kunye nokuqhekeka kwemigodi:Umxholo wayo ophezulu we-chromium kunye ne-molybdenum uyivumela ukuba isebenze kakuhle kwiindawo ezine-chloride.

• Ukuqhekeka koxinzelelo:Isakhiwo se-duplex sinika amandla okumelana nokuqhekeka phantsi koxinzelelo, nokuba sichatshazelwe ziindaba ezirhabaxa.

Amandla Oomatshini Aphezulu

• Amandla aphezulu okuThatha:Ngokwesiqhelo, amandla okutsalwa kwe-S31803 adlula i-500 MPa, nto leyo eyenza ukuba ilungele ukusetyenziswa koxinzelelo oluphezulu.

• Ukuqina Okuphuculweyo:Ulwakhiwo olulinganiselayo alugcini nje ngokuqinisa amandla kodwa lukwaqinisekisa ukuqina okuthembekileyo kunye nokuguquguquka, okubaluleke kakhulu kwiindawo zoshishino eziguqukayo.

Ukudityaniswa kakuhle

Nangona kufuneka ingqwalasela ekhethekileyo ngexesha lokuwelda ukuze kuthintelwe ukuwohloka kwindawo echaphazeleke bubushushu, iindlela ezifanelekileyo zokuwelda kunye nonyango emva kokuwelda zinokuqinisekisa ukuba amalungu aqinileyo, angenaziphene. Oku kwenza i-S31803 ibe lukhetho olusebenzayo kumsebenzi wokwenziwa kunye nowokulungisa.

Izicelo zeShishini

Intsimbi engagqwali ye-S31803 ephindwe kabini isetyenziswa kakhulu kumashishini ahlukeneyo ngenxa yokudibanisa kwayo amandla kunye nokumelana nokugqwala. Iindawo eziphambili zokusetyenziswa ziquka:

• Izixhobo Zokucubungula Iikhemikhali:Ilungele ii-reactors, iitanki zokugcina, kunye neenkqubo zemibhobho apho kufuneka ukumelana neekhemikhali ezirhabaxa.

• Ishishini leoyile negesi:Isetyenziswa kakhulu kwimibhobho, kwiivalvu, nakwii-fittings, ingakumbi phantsi kweemeko zoxinzelelo oluphezulu kunye ne-chloride ephezulu.

• Ubunjineli boLwandle kunye noKwakha iinqanawa:Ukumelana kwayo nokugqwala kwamanzi anetyuwa kwenza ukuba ifaneleke kwizakhiwo zaselwandle, izixhobo zaselwandle, kunye nezinye izinto ezisetyenziswa elwandle.

• Izixhobo zokuvelisa amandla:Baqeshwe kwizikhululo zamandla nakwizakhiwo zenyukliya apho ulwakhiwo kunye nokusebenza kwexesha elide kubaluleke kakhulu.

• Izinto zokwakha nezokwakha:Ukugqitywa kwayo okunomtsalane kunye nokuqina kwayo kukhokelele ekusetyenzisweni kwayo kwizakhiwo zanamhlanje kunye nezicelo zobuhle

   

Ukuthobela iMigangatho yaMazwe ngaMazwe

Intsimbi engagqwali ye-S31803 ephindwe kabini ihambelana nemigangatho emininzi ebalulekileyo yamazwe ngamazwe neyelizwe, iqinisekisa ukuthembeka kwayo kunye nomgangatho wayo. Umzekelo:

• I-ASME B16.11:Icacisa ukusetyenziswa kwayo ekwenziweni kwe-socket weld kunye ne-threaded pipe fittings.

• I-ASTM A240/A240M:Ibonelela ngezikhokelo zeepleyiti zentsimbi engatyiwayo ezisetyenziswa kwiindlela ezahlukeneyo zokusebenza.

• EN 10088-2:Ichaza iinkcukacha ezifunekayo kwiimveliso zentsimbi engagqwaliyo eYurophu.

Oku kubambelela kwimigangatho engqongqo kuqinisekisa ukuba i-S31803 iyahlangabezana neemfuno zezicelo ezibalulekileyo kwihlabathi liphela.

Isiphelo

Intsimbi engagqwali ye-S31803 ephindwe kabini iphuma phambili njengesixhobo esiguquguqukayo nesiqinileyo esifanelekileyo kwiindawo zoshishino ezifuna amandla. Ukudibanisa kwayo okugqwesileyo kwamandla aphezulu, ukumelana nokugqwala okuphezulu, kunye nokudityaniswa okuthembekileyo kwenza ukuba ibe lukhetho oluphezulu kumacandelo afana nokucubungula iikhemikhali, ioyile negesi, ubunjineli baselwandle, imveliso yamandla, kunye nokwakha. Njengoko amashishini eqhubeka nokunciphisa imida yokusebenza kunye nokuqina, i-S31803 ihlala iyinto ekhethwayo enika ixabiso elihlala lihleli kunye nokhuseleko.

Ukuze ufumane iinkcukacha zobugcisa ezineenkcukacha ezithe vetshe kunye nezisombululo ezenzelwe wena, iingcali zoshishino ziyakhuthazwa ukuba zijonge amaphepha edatha yezinto ezibonakalayo kwaye ziqhagamshelane nababoneleli abathembekileyo.

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