Mwachidule

Cholinga chathu chiyenera kukhala kuphatikiza ndi kupititsa patsogolo ntchito zapamwamba ndi ntchito za zinthu zamakono, pakali pano nthawi zambiri timapanga zinthu zatsopano kuti tikwaniritse mafoni osiyanasiyana amakasitomala a High-Temperature Service SMLS Steel Pipe. Kuti tipititse patsogolo gawo lokulitsa, tikupempha moona mtima anthu ofunitsitsa komanso mabungwe kuti alowe nawo ngati wothandizira. Ndi cholinga "kupikisana ndi khalidwe labwino ndi kukhala ndi zilandiridwenso" ndi mfundo utumiki "kutenga zofuna za makasitomala monga lathu", tikupita moona zinthu mankhwala oyenerera ndi utumiki wabwino kwa makasitomala apakhomo ndi mayiko.

P235GH ndi Germany kutentha structural zitsulo, nambala code ndi 1.0345, zitsulo kalasi EN10028, ndi mpweya zitsulo chidebe mbale. Nthawi zambiri amagwiritsa ntchito ng'anjo yamagetsi ya arc ndi chosinthira chowuzira mpweya wowombedwa pamwamba, chitsulo chokhala ndi zofunikira kwambiri zoyenga za adpot kunja kwa ng'anjo, kusungunula ma electroslag kapena kukonza vacuum, kusungunula ng'anjo ya vacuum kapena kusungunula vacuum kawiri, chithandizo choyenera cha kutentha. Zinthu za alloy ndizokwera kwambiri. Ali ndi pulasitiki yabwino komanso yolimba, malo ozizira opindika ndi kuwotcherera, oyenera kupanga chotengera chosungira zitsulo zanyukiliya, chotengera chopondera, zida za zida. China zitsulo kalasi Q245R angagwiritsidwe ntchito m'malo. Poyerekeza ndi chitsulo wamba ali ndi mphamvu apamwamba ndi kulimba, ozizira kupinda katundu ndi kuwotcherera ntchito, katundu thupi, katundu mankhwala, biocompatibility ndi ntchito ndondomeko.

Mphamvu zamakina, mphamvu zolimba 350-480 MPa; Zokolola mphamvu ≥215 MPa; Elongation ≥ 25%; Kuyamwa kwamphamvu ≥47J; Brinell kuuma ≤ 105-140 HB100/3000,

Mankhwala (kagawo kakang'ono,%) : C≤0.16; Si≤0.35; Mn 0,60 ~ 1,20; P≤0.025; S≤0.010; Cr≤0.30;Ni≤0.30; Ku≤0.30; Mo≤0.08; V≤0.02; Nb≤0.02; N≤0.012; Al≤0.020; Ti≤0.03.

Kutentha mankhwala: kutentha mankhwala kutentha 1100-850 ℃; Kutentha kwa Annealing ndi 890 ~ ​​950 ℃; Normalizing kutentha 520-580 ℃.

Kugwiritsa ntchito

Amagwiritsidwa ntchito kwambiri popanga zitsulo zapamwamba kwambiri za carbon structural steel, alloy structural chitsulo ndi mapaipi achitsulo osatentha osagwira kutentha osasunthika kuti azitha kuthamanga kwambiri komanso mapaipi otenthetsera pamwamba.

Amagwiritsidwa ntchito kwambiri pakuthamanga kwambiri komanso kutentha kwambiri kwa boiler (chubu chapamwamba chotenthetsera, chubu chotenthetsera, chubu chowongolera mpweya, chubu chachikulu cha nthunzi yama boiler okwera komanso okwera kwambiri). Pansi pa kutentha kwa mpweya wa flue ndi mpweya wa madzi, chubucho chidzasungunuka ndi kuwononga. Ndikofunikira kuti chitoliro chachitsulo chikhale chokhazikika kwambiri, kukana kwambiri makutidwe ndi okosijeni ndi dzimbiri, komanso kukhazikika kwadongosolo.

Main Grade

Kalasi apamwamba mpweya structural zitsulo: 20g, 20mng, 25mng

Kalasi ya aloyi structural zitsulo: 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, etc.

Gulu lachitsulo chosagwira kutentha: 1cr18ni9 1cr18ni11nb

Chigawo cha Chemical

Mechanical Property

Kulekerera

Makulidwe a Khoma ndi Diameter Yakunja:

Ngati palibe zofunikira zapadera, chitolirocho chidzaperekedwa ngati m'mimba mwake wakunja ndi makulidwe a khoma. Monga tsamba lotsatira

Utali:

Utali wanthawi zonse wa mipope yachitsulo ndi 4 000 mm ~ 12 000 mm. Pambuyo pokambirana pakati pa wogulitsa ndi wogula, ndikudzaza mgwirizanowu, ukhoza kuperekedwa mapaipi achitsulo ndi kutalika kwa 12 000 mm kapena kufupikitsa kuposa I 000 mm koma osachepera 3 000 mm; kutalika kwapang'onopang'ono Kuchuluka kwa mapaipi achitsulo osakwana 4,000 mm koma osachepera 3,000 mm sikuyenera kupitilira 5% ya kuchuluka kwa mapaipi achitsulo omwe amaperekedwa.

Kulemera kwake:
Pamene chitoliro chachitsulo chimaperekedwa molingana ndi m'mimba mwake mwadzina ndi makulidwe a khoma lodziŵika kapena m'mimba mwake mwadzina ndi makulidwe a khoma, chitoliro chachitsulo chimaperekedwa molingana ndi kulemera kwake. Itha kuperekedwanso molingana ndi kulemera kwamalingaliro.
Pamene chitoliro chachitsulo chimaperekedwa molingana ndi m'mimba mwake mwadzina ndi makulidwe ochepa a khoma, chitoliro chachitsulo chimaperekedwa molingana ndi kulemera kwake; maphwando ogulitsa ndi ofunikira amakambirana. Ndipo zikuwonetsedwa mu mgwirizano. Chitoliro chachitsulo chikhoza kuperekedwanso molingana ndi kulemera kwa chiphunzitso.

Kulekerera kulemera:
Malinga ndi zofunikira za wogula, pambuyo pokambirana pakati pa wogulitsa ndi wogula, ndi mu mgwirizano, kupatuka pakati pa kulemera kwake ndi kulemera kwake kwa chitoliro chachitsulo kudzakwaniritsa zofunikira izi:
a) Chitoliro chachitsulo chimodzi: ± 10%;
b) Gulu lililonse la mapaipi achitsulo okhala ndi kukula kochepa kwa 10 t: ± 7.5%.

Chofunikira Choyesa

Mayeso a Hydraustatic:

Chitoliro chachitsulo chiyenera kuyesedwa hydraulically mmodzimmodzi. Kuthamanga kwakukulu kwa mayeso ndi 20 MPa. Pansi pa kukakamizidwa kwa mayeso, nthawi yokhazikika iyenera kukhala yosachepera 10 s, ndipo chitoliro chachitsulo sichiyenera kutuluka.

Wogwiritsa ntchito akavomera, kuyesa kwa hydraulic kumatha kusinthidwa ndi kuyesa kwa eddy panopa kapena kuyesa kwa maginito kutayikira.

Mayeso Osawononga:

Mipope yomwe imafuna kuyang'anitsitsa kwambiri iyenera kuyang'aniridwa ndi ultrasonically mmodzimmodzi. Pambuyo pa zokambiranazo zimafuna chilolezo cha chipanicho ndipo zafotokozedwa mu mgwirizano, mayesero ena osawononga akhoza kuwonjezeredwa.

Mayeso a Flattening:

Machubu okhala ndi mainchesi akunja opitilira 22 mm adzayesedwa kuphwanyidwa. Palibe delamination yowoneka, mawanga oyera, kapena zonyansa zomwe ziyenera kuchitika panthawi yonse yoyesera.

Kuyesa kwa Flaring:

Malinga ndi zofunika za wogula ndi ananena mu mgwirizano, chitoliro zitsulo ndi awiri akunja ≤76mm ndi khoma makulidwe ≤8mm akhoza kuchita flaring mayeso . Kuyesera kunkachitika kutentha kwa chipinda ndi taper ya 60 °. Pambuyo pakuwotcha, kutentha kwapakati pakunja kuyenera kukwaniritsa zofunikira patebulo lotsatirali, ndipo zoyeserera siziyenera kuwonetsa ming'alu kapena ming'alu.

Tsatanetsatane wa Zamalonda

Machubu Azitsulo Opanda Seam Kwa Ma boiler Othamanga Kwambiri

GB/T5310-2017

ASME SA-106/SA-106M-2015

ASTMA210(A210M)-2012

ASME SA-213/SA-213M

ASTM A335/A335M-2018