Rebar sunan gama-gari ne na sandunan ƙarfe mai zafi mai birgima. Matsayin madaidaicin sandar ƙarfe mai zafi na yau da kullun ya ƙunshi HRB da mafi ƙarancin abin da ake samu na sa. H, R, da B sune haruffan Ingilishi na farko na kalmomin uku, Hotrolled, Ribbed, da Bars, bi da bi. An raba sandunan ƙarfe masu zafi da aka yi birgima zuwa maki uku: HRB335 (tsohon sa 20MnS), HRB400 (tsohon sa 20MnSiV, 20MnSiNb, 20Mnti) da HRB500.
Dubawa
Ƙaƙƙarfan ƙwaƙƙwarar ƙarfe mai zafi mai zafi An ƙara harafin farko na Turanci (Fine) na "lafiya" zuwa sunan alamar katako mai zafi mai zafi. kamar:
Saukewa: HRBF335HRBF400. Makiyoyi masu dacewa don tsarin girgizar ƙasa tare da buƙatu mafi girma sune: ƙara E bayan maki na yanzu (misali: HRB400E
HRBF400E)
Babban amfani: ana amfani da shi sosai a ginin injiniyan farar hula kamar gidaje, gadoji, hanyoyi, da sauransu.
Bambance-bambancen da ke tsakanin rebar da kewayawa: Bambance-bambancen da ke tsakanin rebar da madaurin kewayawa shi ne cewa akwai haƙarƙari masu tsayi da kuma haƙarƙari a saman, yawanci tare da haƙarƙari biyu masu tsayi da maɗaukakiyar haƙarƙari daidai gwargwado tare da tsayin daka. Rebar karamin sashi ne na karfe, galibi ana amfani dashi don kwarangwal na kayan aikin ginin siminti. A cikin amfani, ana buƙatar takamaiman ƙarfin inji, aikin nakasar lankwasawa da aikin walda. Abubuwan da ake amfani da su don samar da rebars sune ƙarfe na tsarin carbon ko ƙananan ƙarfe na tsari wanda aka yi masa magani ta hanyar lalata.
Ƙarfe na tsari, ƙãre sandunan ƙarfe ana isar da su a cikin zafi-birgima, al'ada ko yanayin birgima mai zafi.
nau'in
Akwai hanyoyin rarrabuwa guda biyu da aka saba amfani da su don rebar; ana rarraba ɗaya ta hanyar siffar geometric, kuma ana rarraba ko rarraba bisa ga sifar giciye na haƙarƙari mai jujjuyawa da tazarar hakarkarin.
Nau'in, kamar British Standard (BS4449), an raba rebar zuwa | irin, na buga. Wannan rarrabuwa galibi yana nuna ƙwaƙƙwaran aikin rebar. Biyu ne
Rarraba ayyuka (grade), kamar ƙayyadaddun aiwatarwa na yanzu, rebar shine (GB1499.2-2007) sandar waya shine 1499.1-2008), gwargwadon ƙarfin ƙarfin.
Daban-daban (ƙarfin samarwa / ƙarfin ƙarfi), an raba rebar zuwa maki 3; a cikin Matsayin Masana'antu na Jafananci (JISG3112), an raba rebar zuwa nau'ikan 5 bisa ga cikakken aikin; a cikin Ma'auni na Biritaniya (BS4461), rebar kuma an ayyana matakan gwaji da yawa. Bugu da kari, rebar kuma za a iya sarrafa bisa ga aikace-aikace.
Rarrabewa, kamar sandunan ƙarfe na yau da kullun don ƙarfafa kankare da sandunan ƙarfe masu zafi don ƙarfafa simintin da aka riga aka rigaya.
Lokacin aikawa: Agusta-09-2022