ASTM A252chitsulo chitoliro ndi wamba cylindrical chitoliro mulu zakuthupi kuphimba onse welded ndi opanda msoko mitundu milu zitsulo chitoliro kumene yamphamvu zitsulo ntchito ngati okhazikika katundu membala kapena chipolopolo kupanga kuponyedwa-m'malo mulu konkire.
Gulu 3ndiye giredi lapamwamba kwambiri pakati pa magiredi atatu a A252, okhala ndi zochepaperekani mphamvu za 310MPa [45,000 psi]ndi osacheperamphamvu yamphamvu ya 455MPa [66,000 psi].Poyerekeza ndi magiredi ena, Gulu la 3 ndiloyenera kwambiri pazomanga zolemetsa kapena m'malo ovuta kwambiri, ndipo nthawi zambiri amagwiritsidwa ntchito pomanga maziko a milatho yayikulu, nyumba zazitali, kapena nsanja zakunyanja.
A252 yagawidwa m'makalasi atatu kuti igwirizane ndi malo osiyanasiyana ogwiritsira ntchito.
Gulu 1,Gulu 2,ndiGulu 3.
Pang'onopang'ono kuwonjezeka makina katundu.
Gulu 1amagwiritsidwa ntchito makamaka m'malo omwe nthaka imakhala yabwino komanso zofunikira zonyamula katundu sizokwera kwambiri.Zitsanzo zikuphatikizapo maziko opepuka a nyumba zogona kapena zamalonda, kapena milatho ing'onoing'ono yomwe safuna katundu wambiri.
Gulu 2ndi yoyenera kugwiritsa ntchito ndi dothi losauka kapena zofunikira zonyamula katundu.Mwachitsanzo, milatho yodzaza pang'ono, nyumba zazikulu zamalonda, kapena zomangamanga zanyumba za anthu.Ikhoza kugwiritsidwanso ntchito m'madera omwe ali ndi madzi ochuluka, monga mitsinje ndi nyanja, kumene kukana kwamphamvu kwa deformation kumafunika.
Gulu 3amagwiritsidwa ntchito pazinthu zolemetsa kwambiri, monga milatho ikuluikulu, maziko a zida zolemera, kapena ntchito yozama ya maziko a nyumba zapamwamba.Kuphatikiza apo, pazinthu zapadera za geological, monga dothi lofewa kwambiri kapena losakhazikika, Gulu la 3 limapereka mphamvu zonyamula katundu komanso kukhazikika.
Kukhazikitsidwa mu 2014,Botop Steelndi kutsogolera mpweya zitsulo chitoliro katundu ku Northern China, amadziwika popanga apamwamba welded ndi zitsulo mipope.
Zogulitsa zathu zonse zimakwaniritsa miyezo yolimba ya ASTM A252, kuwonetsetsa kuti zikuyenda bwino pansi pazovuta kwambiri.
Timaperekanso zowonjezera zowonjezera ndi ma flanges kuti tikwaniritse zosowa zamitundu yosiyanasiyana yamapaipi.
Mukasankha Botop Steel, mumasankha kuchita bwino komanso kudalirika.
Mapaipi a ASTM A252 Pipe Pile atha kugawidwa m'magulu awiri opangira:opanda msoko ndi welded.
Mu ndondomeko yowotcherera, ikhoza kugawidwansoERW, EFW,ndiSAW.
SAW ikhoza kugawidwa m'maguluMtengo wa LSAW(SAWL) ndiChithunzi cha SSAW(HSAW) kutengera momwe kuwotcherera.
Chifukwa SAW nthawi zambiri amawotcherera pogwiritsa ntchito njira yowotcherera yokhala ndi mbali ziwiri, imatchedwanso kuti.Chithunzi cha DSAW.
Njira zosiyanasiyana zopangira izi zimalola chitoliro cha ASTM A252 cha tubular kuti chikwaniritse zosowa zaukadaulo zosiyanasiyana.
Zotsatirazi ndi tchati chotuluka cha spiral steel pipe (SSAW):
Chitoliro chachitsulo cha SSAWndi abwino kupanga lalikulu m'mimba mwake zitsulo chitoliro ndipo akhoza kupangidwa mu diameters wa ku 3,500mm.Sikuti amangopangidwa motalika kwambiri, abwino kwa nyumba zazikulu, koma chitoliro chachitsulo cha SSAW chimakhalanso chotsika mtengo poyerekeza ndi LSAW ndi SMLS chitoliro chachitsulo.
Botop Steel ikhoza kupereka miyeso iyi yamachubu achitsulo:
Phosphorous sayenera kupitirira 0.050%.
Zofunikira pakupanga mankhwala a ASTM A252 ndizosavuta poyerekeza ndi miyeso ina yamapaipi pazinthu zina chifukwa chitoliro chikagwiritsidwa ntchito ngati mulu wa chitoliro, chimakhala chokhazikika mwachilengedwe.Ndikokwanira kuti chitoliro chachitsulo chikhoza kupirira katundu wofunika komanso chilengedwe.Chemistry yosavuta iyi imathandizira kukhathamiritsa mtengo ndi zokolola ndikukwaniritsa zofunikira pachitetezo chadongosolo komanso kulimba.
ATebulo 2 limapereka ziwerengero zochepera zomwe zawerengedwa:
Kumene makulidwe a khoma lotchulidwa ndi apakati ndi omwe asonyezedwa pamwambapa, mtengo wocheperako wotalikirapo udzatsimikiziridwa motere:
Kalasi 3: E = 32t + 10.00 [E = 1.25t + 10.00]
E: elongation mu 2 in. [50.8 mm], %;
t: makulidwe a khoma mwadzina, mkati [mm].
Kwa milu ya milu ya chitoliro yomwe siinatchulidwe mu tchati cha kulemera kwa chitoliro, kulemera kwa unit kutalika kwake kuwerengedwe motere:
W = 10.69(D - t)t [W = 0.0246615(D - t)t]
W = kulemera kwa unit kutalika, lb/ft [kg/m].
D = kufotokozedwa kunja kwake, mkati [mm],
t = makulidwe a khoma ladzina, mkati [mm].
Kampani yathu imapereka zokutira zosiyanasiyana kuphatikiza Paint, vanishi, malata, zinc-rich epoxy, 3LPE, malasha phula epoxy, etc.
Pogula A252 Pipe Pile Tubing, mfundo zotsatirazi ziyenera kuperekedwa kuti zithandizire luso la wothandizira kukwaniritsa zosowa zanu zenizeni ndikuchepetsa kusinthidwa kotsatira ndi kuchedwa komwe kungachitike.
1 kuchuluka (mapazi kapena kuchuluka kwa utali),
2 Dzina lazinthu (milu ya chitoliro chachitsulo),
3 Njira zopangira (zopanda msoko kapena zowotcherera),
Gulu la 4 (1, 2, kapena 3),
5 Kukula (m'mimba mwake kunja ndi makulidwe a khoma mwadzina),
Utali wa 6 (osakhazikika mwachisawawa, owirikiza mwachisawawa, kapena yunifolomu),
7 Pomaliza,
8 Mafotokozedwe a ASTM ndi chaka chotulutsa.
