Dhexroor Wayn oo Tuubooyin Daloolin ah
Sannadihii ugu dambeeyay, baahida loo qabo tuubooyinka tuubooyinka birta ee warshadaha kala duwan ayaa aad u kordhay.Iyada oo koritaanka degdega ah ee dhismaha iyo horumarinta kaabayaasha, dhexroorka ee tuubada tuulanway sii weynaanaysaa oo way sii weynaanaysaa.Sidaa darteed, baahida loo qabo tayada sare leh ee alxanka leh ee tuubooyinka birta dhexroorka ah ee tayada sare leh waxay noqotaa mid muhiim ah.
Shirkaddayada, waxaanu aqoonsanay baahidan sii kordheysa waxaanan soo saarnay xal sare si aan u daboolo baahida suuqa - tuubooyinka birta ee dhexroorka weyn.Tuubooyinkan la tuulan waxaa loogu talagalay in ay bixiyaan awoodda aasaasiga ah ee qaadidda marinnada biyaha qoto dheer, iyaga oo ka dhigaya qayb muhiim ah oo ka mid ah mashruuc kasta oo dhismaha badda ah.
Heerka | Heerka birta | Halabuurka kiimikada | Guryaha xamaasada | Tijaabada Saamaynta Charpy iyo Hoos u Dhigista Imtixaanka Ilmada | ||||||||||||||
C | Si | Mn | P | S | V | Nb | Ti | CEV4) (%) | Rt0.5 Mpa Xoog dhalid | Xoog Tensile Rm Mpa | Rt0.5/ Rm | (L0=5.65 √ S0) Kordhinta A% | ||||||
max | max | max | max | max | max | max | max | Mid kale | max | min | max | min | max | max | min | |||
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 | Tijaabada Saamaynta Dabiiciga ah: Saamaynta nuugista tamarta tuubada iyo tollaynta alxanka waa in la tijaabiyaa sida loogu baahan yahay heerka asalka ah.Faahfaahinta, eeg heerka asalka ah.Tijaabada jeexjeexa miisaanka: Aagga xiirida ee ikhtiyaarka ah | |
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 | |||
L320MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.41 | 320 | 500 | 430 | 21 | ||||
L360MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 1) | 0.41 | 360 | 530 | 460 | 20 | |||||||
L390MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.15 | 1) | 0.41 | 390 | 545 | 490 | 20 | |||||||
L415MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.42 | 415 | 565 | 520 | 18 | |||||||
L450MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.43 | 450 | 600 | 535 | 18 | |||||||
L485MB | 0.12 | 0.45 | 1.7 | 0.025 | 0.015 | 1)2)3 | 0.43 | 485 | 635 | 570 | 18 | |||||||
L555MB | 0.12 | 0.45 | 1.85 | 0.025 | 0.015 | 1)2)3 | Gorgortanka | 555 | 705 | 625 | 825 | 0.95 | 18 | |||||
Fiiro gaar ah: | ||||||||||||||||||
1) 0.015 ≤ Altot | ||||||||||||||||||
2) V+Nb+Ti ≤ 0.015% | ||||||||||||||||||
3) Dhammaan darajooyinka birta, Mo laga yaabaa ≤ 0.35%, hoos yimaada qandaraas. | ||||||||||||||||||
Mn Cr+Mo+V Cu+Ni4) CEV=C+6+5+5 |
OurTusmada tuubooyinka birta ah ee wareegsanwaxaa lagu soo saaray iyadoo la isticmaalayo tignoolajiyada ugu dambeysay si ay ugu adkeysato jawiga ugu adag.Hadday tahay dhismaha buundada, dhismaha waddooyinka, dhismayaal dhaadheer ama codsi kasta oo kale oo u baahan aasaas la isku halayn karo, tuubooyinkeena tuulan ayaa ku habboon.
Waxa kala saaraya tuubooyinka tuulankeena waa tayada aan caadiga ahayn iyo cimri dhererkooda.Waxaan fahamsanahay muhiimada ay leedahay aasaas adag oo xasilloon, taas oo ah sababta aan u aadno dhererka dheer si aan u hubinno in tuubooyinka birta dhexroorka weyni ay la kulmaan heerarka ugu sarreeya ee heer sare.Dhismahooda adag iyo teknooloojiyada alxanka ee horumarsan, tuubooyinkeena tuubooyinku waxay u dhisan yihiin inay sii jiraan, taasoo ku siinaya xasilloonida maskaxda adoo og in mashruucaagu uu taageerayo tignoolajiyada ugu fiican warshadaha.
Intaa waxaa dheer, tuubooyinka tuullooyinkeena ayaa lagu heli karaa cabbirro kala duwan si loo daboolo baahiyaha gaarka ah ee mashruucaaga.Haddii aad u baahan tahay tuubo welded dhexroor weyn ama cabbir yar, waxaan ku siin karnaa xalka ugu fiican ee shuruudahaaga.
Intaa waxaa dheer, waxaan aad ugu hanweynahay sida ay nooga go'an tahay sii jirista deegaanka.Tuulooyinkayada tuubooyinka birta ah ee isku dhafka ah waxaa lagu soo saaraa iyadoo la adeegsanayo hababka deegaanka u wanaagsan, iyadoo la hubinayo inaysan kaliya buuxin heerarka tayada ugu sarreeya laakiin sidoo kale u hoggaansamaan xeerarka deegaanka ee adag.Tani waxay ka dhigan tahay marka aad dooranayso tuubooyinka tuubooyinka, kaliya maaha inaad maalgelinayso xal aasaasi ah oo la isku halayn karo oo waara, laakiin waxaad sidoo kale ka qayb qaadanaysaa cagaar cagaaran, mustaqbal waara.
Isku soo wada duuboo, tuubooyinkeena tuubooyinka, oo ay ku jiraan tuusmada tuubooyinka birta ee isbiirsaday, ayaa ah astaanta heerka sare ee warshadaha.Iyaga oo leh tayada aan la barbar dhigi karin, adkeysiga iyo ilaalinta deegaanka, waxay yihiin doorashada ugu fiican ee mashruuc kasta oo u baahan aasaas la isku halleyn karo.Sidaa darteed, marka ay timaaddo buuxinta baahidaada tuubada, shirkadeena ayaa ah doorashadaada ugu fiican.Waxaa naga go'an inaan ku siino xalalka ugu fiican dhammaan shuruudahaaga aasaasiga ah.