I-Spiral Submerged Arc Welded imibhobho yoShishino lwale mihla
Izinto eziluncedo kumbhobho odityanisiweyo we-arc odityanisiweyo:
1. Ulwakhiwo olusebenzayo:
Imibhobho ye-SSAW inoyilo lwe-weld olujikelezayo oluvumela ukuveliswa okusebenzayo kunye nokunciphisa ixesha lokuvelisa.Olu phawu lukhethekileyo lwenza ukhetho lokuqala kwiiprojekthi zokwakha ezinkulu ezifana neoli kunyeimibhobho yegesi, iinkqubo zothumelo lwamanzi, kunye namaqonga okomba onxweme.Inkqubo ye-welding eqhubekayo iqinisekisa umgangatho ophezulu wokunyaniseka kwesakhiwo, ukwandisa ukuqina kunye nobomi benkonzo yombhobho.
Umgangatho | Ibakala Steel | Ukwakhiwa kweekhemikhali | Iimpawu zokuqina | UVavanyo lweMpembelelo yeCharpy kunye noVavanyo lokuLahla ubunzima beenyembezi | ||||||||||||||
C | Si | Mn | P | S | V | Nb | Ti | CEV4) (%) | Rt0.5 Mpa Isivuno samandla | Rm Mpa Tensile Amandla | Rt0.5/Rm | (L0=5.65 √ S0) Ubude A% | ||||||
max | max | max | max | max | max | max | max | Okunye | max | imiz | max | imiz | max | max | imiz | |||
I-L245MB | 0.22 | 0.45 | 1.2 | 0.025 | 0.15 | 0.05 | 0.05 | 0.04 | 1) | 0.4 | 245 | 450 | 415 | 760 | 0.93 | 22 | Uvavanyo lwempembelelo ye-Charpy: Impembelelo yokufunxa amandla omzimba wombhobho kunye ne-weld seam iya kuvavanywa njengoko kufunwa kumgangatho wokuqala.Ngeenkcukacha, jonga umgangatho wokuqala.Uvavanyo lokukrazula ubunzima: Indawo yokucheba ngokuzikhethela | |
GB/T9711-2011 (PSL2) | L290MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.4 | 290 | 495 | 415 | 21 | |||
I-L320MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.41 | 320 | 500 | 430 | 21 | ||||
I-L360MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 1) | 0.41 | 360 | 530 | 460 | 20 | |||||||
I-L390MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.15 | 1) | 0.41 | 390 | 545 | 490 | 20 | |||||||
I-L415MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.42 | 415 | 565 | 520 | 18 | |||||||
I-L450MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.43 | 450 | 600 | 535 | 18 | |||||||
I-L485MB | 0.12 | 0.45 | 1.7 | 0.025 | 0.015 | 1)2)3 | 0.43 | 485 | 635 | 570 | 18 | |||||||
I-L555MB | 0.12 | 0.45 | 1.85 | 0.025 | 0.015 | 1)2)3 | Uthethathethwano | 555 | 705 | 625 | 825 | 0.95 | 18 |
2. Amandla agqwesileyo kunye nokuguquguquka:
Isakhiwo esijikelezayo sombhobho we-SSAW sandisa amandla ayo, sivumela ukuba simelane noxinzelelo lwangaphandle kunye nangaphakathi.Le mibhobho iyakwazi ukumelana neemeko ezigqithiseleyo ze-atmospheric, izenza zifaneleke kwizicelo ezingaphezulu nangaphantsi komhlaba.Ukongezelela, ukuguquguquka kwemibhobho ye-SSAW ivumela ukuba iguqulelwe ngokulula kwaye ifakwe kwiindawo ezahlukeneyo, kubandakanywa umhlaba onzima kunye nomhlaba ongazinzanga.
3. Isisombululo esiyonga iindleko:
Iinkqubo ze-welding eziqhubekayo zonyusa imveliso ngelixa zinciphisa kakhulu iziphene ze-welding kunye neendleko.Ukongeza, imibhobho edityanisiweyo ye-arc edityanisiweyo inika amandla aphezulu kunye nokuqina, inciphisa ugcino kunye neendleko zokulungisa kubomi babo bonke, ibenza ibe lukhetho loqoqosho lweshishini.
Imiceli mngeni ejongene nemibhobho edityanisiweyo ye-arc edityanisiweyo:
1. Ulawulo lomgangatho:
Ngenxa yeenkqubo zokuwelda ezintsonkothileyo ezibandakanyekayo ekuveliseni imibhobho edityanisiweyo ye-arc edityanisiweyo, ukuqinisekisa umgangatho ongaguqukiyo ngumngeni.Ukuba iiparamitha ze-welding azilawulwa ngokuchanekileyo, iziphene ze-welding ezifana ne-undercuts, pores, kunye nokungabikho kokudibanisa kuya kwenzeka.Ukoyisa lo mngeni, imilinganiselo engqongqo yolawulo lomgangatho kunye neenkqubo zokubeka iliso ezikumgangatho ophezulu ngexesha lenkqubo yokwenziwa kwemveliso zibalulekile.
2. Uluhlu lwesithintelo sedayamitha yombhobho:
Ngelixa imibhobho e-spiral edityanisiweyo ye-arc edityanisiweyo ilungele ukusetyenziswa kwedayamitha enkulu, isenokungakulungeli ushishino olufuna iisayizi zemibhobho emincinci.Inkqubo yokwenziwa kwemveliso isebenza ngokufanelekileyo kwimibhobho emikhulu edayamitha, ekhokelela ekufumanekeni okunyiniweyo kweeprojekthi ezincinci ezifana nemibhobho yokuhlala kunye nokusetyenziswa kwemizi-mveliso emincinci.Kwiimfuno ezinjalo, ubugcisa obunye bokwenza umbhobho kufuneka buthathelwe ingqalelo.
3. Ukwambathisa umphezulu:
Omnye umngeni ojongene noshishino lwemibhobho ye-SSAW kukuqinisekisa ukugquma komhlaba okufanelekileyo kunye nokuzinzileyo ukukhusela ngokuchasene nokubola kunye nokunxiba.Ukufakwa kokugquma kumphezulu we-spiral kufuna izixhobo eziphucukileyo kunye nobuchule bokuqinisekisa ukugquma nokuncamathela.Ukugquma komhlaba okufanelekileyo kubalulekile ekwandiseni ubomi benkonzo yombhobho odityanisiweyo we-arc odityanisiweyo, ngakumbi kwiindawo ezirhabaxa.
Ukuququmbela:
Imibhobho edityanisiweyo ye-arc edityanisiweyo ye-Spiral ibonakalise ukuba bubuchwephesha obunenzuzo enkulu kushishino lwangoku, ibonelela ngobuchule, amandla kunye nokuphumelela kweendleko.I-spiral weld seam yayo ekhethekileyo ivumela imveliso esebenzayo kunye nokwandisa ixesha elide, iyenze ilungele iiprojekthi ezinkulu zokwakha.Nangona kunjalo, impumelelo eqhubekayo kunye nokwamkelwa okubanzi kobu buchwepheshe bokuvelisa, imiceli mngeni efana nolawulo lomgangatho, uluhlu olulinganiselweyo lwedayamitha, kunye nokwaleka komphezulu kufuneka kuqwalaselwe.Ngokoyisa le mingeni ngokuqhubela phambili kwezobuchwepheshe kunye nentsebenziswano yoshishino, umbhobho odityanisiweyo we-arc odityanisiweyo unekamva elithembisayo ekuguquleni nasekugcineni iziseko ezingundoqo ezibalulekileyo kwihlabathi jikelele.