ASTM A252karfe bututu ne na kowa Silindrical bututu tari abu rufe duka welded da sumul iri na karfe bututu tara inda karfe Silinda da ake amfani da a matsayin dindindin lodi-dauke memba ko a matsayin harsashi don samar da simintin gyaran kafa-in-wuri kankare tari.
Darasi na 3shine mafi girman aiki a cikin maki uku na A252, tare da ƙaramiƘarfin yawan amfanin ƙasa na 310MPa [45,000 psi]kuma mafi ƙanƙantaƘarfin ƙarfi na 455MPa [66,000 psi].Idan aka kwatanta da sauran maki, Grade 3 ya fi dacewa da tsarin da ke da nauyi mai nauyi ko a cikin yanayi mai wuyar gaske, kuma ana amfani dashi sau da yawa wajen gina gine-gine na manyan gadoji, gine-gine masu tsayi, ko dandamali na teku.
An raba A252 zuwa maki uku don jure yanayin yanayin amfani daban-daban.
Darasi na 1,Darasi na 2, kumaDarasi na 3.
A hankali karuwa a cikin kayan aikin injiniya.
Darasi na 1Ana amfani da shi ne musamman a aikace-aikace inda ingancin ƙasa ke da kyau kuma buƙatun ɗaukar nauyi ba su da girma musamman.Misalai sun haɗa da tushe mai sauƙi don ginin gidaje ko na kasuwanci, ko ƙananan gadoji waɗanda basa buƙatar kaya masu nauyi.
Darasi na 2ya dace da aikace-aikace tare da yanayin ƙasa mara kyau ko buƙatun ɗaukar nauyi.Misali, gadoji masu matsakaicin nauyi, manyan gine-ginen kasuwanci, ko abubuwan more rayuwa na wuraren jama'a.Hakanan ana iya amfani da shi a wuraren da ke da babban tebur na ruwa, kamar koguna da tafkuna, inda ake buƙatar juriya mai ƙarfi.
Darasi na 3ana amfani da buƙatun nauyi mai nauyi a cikin matsanancin yanayi, kamar manyan gadoji, tushe na kayan aiki mai nauyi, ko aikin tushe mai zurfi don manyan gine-gine.Bugu da ƙari, don yanayin yanayin ƙasa na musamman, kamar ƙasa mai laushi ko rashin kwanciyar hankali, Mataki na 3 yana ba da mafi girman ƙarfin ɗaukar kaya da kwanciyar hankali.
An kafa shi a cikin 2014,Botop Karfebabban mai samar da bututun carbon karfe ne a Arewacin kasar Sin, wanda aka sani don samar da bututun karfe masu inganci da maras kyau.
Duk samfuranmu sun cika ƙaƙƙarfan ƙa'idodin ASTM A252, suna tabbatar da ingantaccen aiki a ƙarƙashin matsanancin yanayi.
Har ila yau, muna ba da cikakkun kayan aiki da flanges don saduwa da bukatun ayyukan bututu iri-iri.
Lokacin da kuka zaɓi Botop Karfe, kun zaɓi inganci da aminci.
ASTM A252 Pipe Pile Pipes za a iya kasu kashi biyu manyan hanyoyin masana'antu:sumul da walda.
A cikin tsarin walda, ana iya ƙara rarraba shi zuwaERW, EFW, kumaSAW.
SAW ana iya rarraba shi a cikinLSAW(SAW) kumaSSAW(HSAW) ya danganta da alkiblar walda.
Domin SAW yawanci ana walda su ne ta hanyar amfani da dabarar waldawar baka mai gefe biyu, kuma galibi ana kiransu da suna.DSAW.
Waɗannan hanyoyin masana'antu daban-daban suna ba da izinin bututun tubular tubular ASTM A252 don saduwa da buƙatun injiniya iri-iri.
Mai zuwa shine ginshiƙin samar da kwararar bututun ƙarfe (SSAW):
SSAW karfe bututuya dace don kera bututun ƙarfe mai girman diamita kuma ana iya samarwa a cikin diamita na har zuwa 3,500mm.Ba wai kawai za a iya kera shi cikin dogon tsayi sosai ba, wanda ya dace da manyan sifofi, amma SSAW bututun karfe yana da rahusa idan aka kwatanta da LSAW da SMLS bututun karfe.
Botop Karfe na iya bayar da girman jeri na bututun ƙarfe masu zuwa:
Abubuwan da ke cikin phosphorus bai wuce 0.050%.
Abubuwan buƙatun sinadarai don ASTM A252 suna da sauƙin sauƙi idan aka kwatanta da sauran ƙa'idodin bututu don sauran aikace-aikacen saboda lokacin da ake amfani da bututu azaman tarin bututu, da farko yana da tsari a yanayi.Ya isa cewa bututun ƙarfe zai iya tsayayya da nauyin da ake buƙata da yanayin muhalli.Wannan sauƙaƙan sunadarai yana taimakawa haɓaka farashi da haɓaka aiki yayin biyan buƙatun aminci na tsari da dorewa.
ATebu na 2 yana ba da mafi ƙarancin ƙididdiga masu ƙima:
Inda ƙayyadadden kauri na bangon ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙima za a ƙayyade kamar haka:
Darasi na 3: E = 32t + 10.00 [E = 1.25t + 10.00]
E: elongation a cikin 2 in. [50.8 mm],%;
t: ƙayyadadden ƙayyadadden kauri na bango, in. [mm].
Don girman tarin bututun da ba a jera su a cikin ginshiƙi nauyin bututu ba, za a ƙididdige nauyin kowane tsayin raka'a kamar haka:
W = 10.69 (D - t) t [W = 0.0246615 (D - t) t]
W = nauyi kowane tsawon raka'a, lb/ft [kg/m].
D = ƙayyadaddun diamita na waje, a cikin. [mm],
t = ƙayyadadden ƙayyadadden kauri na bango, in. [mm].
Kamfaninmu yana ba da nau'i-nau'i masu yawa ciki har da Paint, varnish, galvanized, zinc-rich epoxy, 3LPE, coal tar epoxy, da dai sauransu don saduwa da bukatun ayyuka daban-daban da kuma tabbatar da dorewa na dogon lokaci.
Lokacin siyan bututun bututun A252, yakamata a samar da bayanan masu zuwa don sauƙaƙe ikon mai siyarwa don daidai daidai da takamaiman buƙatun ku da rage gyare-gyare na gaba da yuwuwar jinkiri.
1 Yawan (ƙafa ko adadin tsayi),
2 Sunan kayan (tulin bututun ƙarfe),
Hanyoyi 3 na kera (marasa sumul ko welded),
4 Darasi (1, 2, ko 3),
5 Girman (diamita na waje da kaurin bango mara kyau),
Tsawon 6 (bazuwar guda ɗaya, bazuwar bazuwar, ko uniform),
7 Ƙarshen ƙarshe,
8 ƙayyadaddun ƙayyadaddun ASTM da shekarar fitowar.
