Kwizakhiwo zanamhlanje, i-rebar yinto ephambili, idlala indima ebalulekileyo kuyo yonke into ukusuka kwizakhiwo eziphakamileyo ukuya kwiindlela ezijikelezayo. Iimpawu zayo ezibonakalayo ezikhethekileyo zenza ukuba ibe yinxalenye ebalulekileyo yokuqinisekisa ukhuseleko lwesakhiwo kunye nokuqina kwaso.
I-Rebar, igama eliqhelekileyo leebha zentsimbi ezigoqwe ngobushushu, livela kumphezulu webha. I-cross-section yayo idla ngokuba yi-circular, ineembambo ezimbini ezinde kunye neembambo ezinqamlezileyo ezilinganayo kubude bayo. Iimbambo ezinqamlezileyo zimile okwe-crescent kwaye azidibani neembambo ezinde. Olu hlobo lobuso olukhethekileyo alugcini nje ngokuqinisa unxibelelwano phakathi kwe-rebar kunye nekhonkrithi kodwa lukwaphucula kakhulu amandla ayo okuxinana kunye nokuzinza ngokubanzi kwizakhiwo zezakhiwo. I-Rebar idla ngokwenziwa ngentsimbi yesakhiwo sekhabhoni okanye intsimbi yesakhiwo esingena-alloy kwaye iza kwiindidi ezahlukeneyo zobubanzi, ukusuka kwi-6 mm ukuya kwi-50 mm, ukuze ivumelane neemfuno ezahlukeneyo zesakhiwo.
I-Rebar ineempawu zoomatshini eziphezulu, isebenzisa ngokupheleleyo iimpawu zoomatshini zentsimbi ngexesha loxinzelelo, nto leyo eyenza ukuba ibe ngcono kune-rebar eqhelekileyo. Umphezulu wayo uphathwa ukuze wenze umaleko we-oxide otyebileyo, obonelela ngokumelana nokugqwala kwaye wandise ubomi bayo benkonzo. Ingasikwa ngokulula ukuya kubude obufunekayo ngomatshini, nto leyo eququzelela imisebenzi yokwakha.
I-Rebar ihlulwe ngeendlela ezahlukeneyo. Ngokwemigangatho yaseTshayina (GB1499), i-rebar yahlulwe yangamanqanaba amathathu ngokusekelwe kumandla (indawo yokukhupha/amandla okutsalwa): I-HRB335, enamandla angama-335 MPa, afanelekileyo kwizakhiwo zokwakha ngokubanzi; I-HRB400, enamandla angama-400 MPa, afanelekileyo kwizakhiwo ezithwele imithwalo emikhulu; kunye ne-HRB500, enamandla angama-500 MPa, anikezela ngamandla aphezulu okutsalwa kunye nokutsalwa, afanelekileyo kwiiprojekthi zobunjineli ezikhethekileyo. I-Rebar ingahlulwa ibe ngamanqanaba atshisiweyo ashushu kunye natshisiweyo abandayo ngokusekelwe kwindlela yayo yokuvelisa. I-rebar etshisiweyo eshushu iveliswa ngamacwecwe entsimbi aqhunyiweyo rhoqo okanye aqengqelwayo ekuqaleni, anikezela ngeenzuzo ezifana namandla aphezulu, ukutsalwa kakuhle, kunye nokunamathela okuhle kwikhonkrithi. I-rebar etshisiweyo ebandayo, kwelinye icala, iveliswa ngamacwecwe atshisiweyo ashushu, afakwe i-pickle ukuze kususwe isikali, aze emva koko agxojwe ebandayo. Ikwabonisa amandla aphezulu, ukutsalwa kakuhle, kunye namandla aqinileyo okubophelelana nekhonkrithi. Ngokwesicelo, ingahlulwa ibe yi-rebar eqhelekileyo yekhonkrithi eqinisiweyo kunye ne-rebar ephathwa ngobushushu yekhonkrithi exineneyo.
I-Rebar isetyenziswa kwiindawo ezahlukeneyo zokwakha nobunjineli. Kwizakhiwo zokwakha, isetyenziswa kakhulu ukuqinisa nokudibanisa imiqadi, iintsika, iislabhu, kunye nezinye izinto kwizakhiwo zekhonkrithi eziqinisiweyo, nto leyo ephucula uzinzo lwazo kunye nomthamo wokuthwala umthwalo. Kwinjineli yobunjineli, isebenza njengesixhobo sokuqinisa nokudibanisa kwiibhulorho, iitonela, nakwiindlela ezinkulu, iphucula uzinzo lwazo kunye nokumelana nokunyikima komhlaba. Kwinjineli yololiwe, isetyenziselwa ukuqinisa nokudibanisa iireli, ukuqinisekisa ukusebenza kakuhle. Kwimigodi, isetyenziswa rhoqo njengesixhobo sokuqinisa nokuxhasa, ixhasa uphahla lweemigodi kunye neendonga. Ikwasetyenziswa nakwimihombiso yezakhiwo ukwenza izinto zokuhombisa ezifana nee-handrails, ii-railings, kunye nezitebhisi, idibanisa ubuhle kunye nokuqina.
Ukuveliswa kwee-rebar kufuna ukuqinisekisa ukuqhubeka phakathi kwenkqubo nganye. Le nkqubo idla ngokwahlulwahlulwa ibe kukwenziwa kwentsimbi, ukwenziwa kwentsimbi ephambili, kunye nokugqitywa. Ubuchwepheshe obuphambili bokuvelisa buquka unyango lobushushu emva kokuqengqeleka, ukuveliswa kwentsimbi ecolekileyo, ukuqhekeka nokuqengqeleka, kunye nokuqengqeleka okungenamingxunya.
I-Rebar ikwaphethe isikhundla esibalulekileyo kwimarike. Isebenza njengophawu oluphambili lophuhliso lweshishini lokwakha, kwaye ukuguquguquka kwamaxabiso ayo kunempembelelo ngqo kwiinkampani ezisezantsi nezisezantsi kuluhlu lweshishini lentsimbi. Kubavelisi bentsimbi, ukunyuka kwamaxabiso e-rebar kuthetha ukuba kukho inzuzo ephezulu; kwiinkampani zokwakha ezisezantsi kunye nabaphuhlisi bezindlu, ukuguquguquka kwamaxabiso kuchaphazela ngokuthe ngqo iindleko zokwakha. Ngo-2023, amaxabiso e-rebar yelizwe lam atshintshatshintsha phakathi kwe-3,600 kunye ne-4,500 yuan/ton, efikelela kwincopho phakathi kuMatshi. Ukususela ekupheleni kukaMatshi ukuya ekupheleni kukaMeyi, idatha yezindlu ayizange ifikelele kulindelo lwemarike. Idibene nokwehla ngokubanzi kwamaxabiso amalahle asekhaya emva kokuncipha kwengxaki yamandla aphesheya, amaxabiso e-rebar ehla ngokukhawuleza. NgoNovemba, uthotho lwemigaqo-nkqubo, kuquka leyo inxulumene neebhondi zikarhulumente ze-trillion-yuan kunye nezindlu, yonyuse kakhulu imvakalelo yemarike kwaye ikhokelele ekubuyeni kwakhona kwamaxabiso e-rebar. Okwangoku, imozulu entle kwimarike yasemazantsi ikhokelele kumsebenzi othile ongxamisekileyo, kodwa imfuno iyonke isaqinile. NgoDisemba, ngenxa yokunyuka kwamaxabiso ezinto eziluhlaza kunye nemigaqo-nkqubo yezoqoqosho, amaxabiso e-rebar atshintshatshintsha malunga ne-4,100 yuan/ton, afikelela kwi-4,090.3 yuan/ton ngomhla wama-29 kuDisemba.
IRebar, isiseko esiqinileyo seeprojekthi zokwakha, ikhanya kwiinkalo ezahlukeneyo ngenxa yeempawu zayo ezikhethekileyo, ichaphazela uphuhliso lweshishini lokwakha. Iya kuqhubeka ikhula ngokuqhubela phambili kwetekhnoloji kunye nophuhliso lweshishini.
Ixesha lokuthumela: Agasti-18-2025