Kwihlabathi lobunjineli bezakhiwo zanamhlanje kunye nolwakhiwo, ukhetho lwentsimbi aluxhomekekanga kwaphela. Iipleyiti ezimbini zentsimbi ezishushu ezixutyiweyo ezichazwe rhoqo—I-ASTM A572 Ibanga lama-50kwayeI-ASTM A992—bazimise njengemigangatho yoshishino kwiiprojekthi ezifuna ulungelelwaniso lwamandla, ukuguquguquka, kunye nokuthembeka.
Ipleyiti yentsimbi eqengqelekayo ye-ASTM A572 yeBanga lama-50yipleyiti yentsimbi enamandla aphezulu, engasetyenziswa kakhulu kwizicelo zesakhiwo, kwiibhulorho, nakwimveliso ngokubanzi. Amandla ayo okuvelisa ayi-50 ksi (345 MPa) kwaye amandla okutsalwa aqala kwi65–80 ksi (450–550 MPa)yenze ibe lukhetho oluguquguqukayo kwiinjineli ezifuna ukusebenza kakuhle kunye nokusebenza kakuhle kweendleko. Ukongeza, i-ASTM A572 Grade 50 ibonisa ukudityaniswa kakuhle kunye nobuchule, okuvumela ukwenziwa okuntsonkothileyo ngaphandle kokuphazamisa ukuthembeka kwentsimbi. Ukudibana kwamandla, ukuqina, kunye nokumelana nokugqwala kwenza ukuba ifaneleke kwizakhiwo ezinzima, kubandakanya izakhiwo zoshishino, amaqonga oomatshini, kunye neziseko zothutho.
Kwelinye icala,Ipleyiti yentsimbi eqengqelekayo eshushu ye-ASTM A992iye yaba yeyona nto ikhethwayo kwimilo yesakhiwo esine-flange ebanzi, ngakumbi eMntla Melika. Ekuqaleni yaphuhliswa ukuze ithathe indawo ye-ASTM A36 kwimilo yesakhiwo, i-A992 inika amandla okuvelisa ubuncinane be-50 ksi (345 MPa), kunye nokuqina okuphezulu kunye nokuguquguquka, okwenza ukuba ilungele izakhiwo ezinganyangekiyo yinyikima. Intsimbi ye-A992 ikwanokuphucula ukugoba kunye nokudityaniswa, okuvumela abenzi bezakhiwo ukuba bahlangabezane neenkcukacha zoyilo oluqinileyo ngokufanelekileyo. Ukwamkelwa kwayo ngokubanzi kwizakhiwo zorhwebo, iibhulorho, kunye nezakhiwo zoshishino bubungqina bokusebenza kwayo okuphezulu kwiimeko zokulayisha ezingashukumiyo nezitshintshayo.
Nangona zombini iintlobo zentsimbi zinomlinganiselo ofanayo wokuvelisa amandla, azitshintshiseki kuzo zonke iinkqubo. I-ASTM A572 Grade 50 idla ngokukhethwa kwiindlela zokusebenzisa iipleyiti ezifuna ukusika ngokwezifiso, umatshini, okanye ukumelana nokuguguleka okunzima, ngelixa i-ASTM A992 ilungiselelwe iimilo zesakhiwo ezifanaImisebe ye-IkwayeImiqadi ye-H, apho uzinzo oluphezulu olusecaleni kunye nokuguquguquka phantsi komthwalo kubalulekile. Ukukhetha intsimbi efanelekileyo kubandakanya ukuqwalaselwa ngononophelo kweemfuno zomthwalo weprojekthi, iindlela zokwenza, kunye neemeko zokusingqongileyo.
Ngaphandle kweempawu zabo zoomatshini, zombiniIipleyiti zentsimbi ze-ASTM A572 zeBanga lama-50kwayeIipleyiti zentsimbi ze-ASTM A992Zenziwa ngeenkqubo eziphambili zokuqengqeleka ezishushu. Ukuqengqeleka okushushu kunika ubukhulu obufanayo kunye nokugqitywa komphezulu ogudileyo ngelixa kuphucula ulwakhiwo lwangaphakathi lwentsimbi. Izixhobo zokwenza izinto zanamhlanje zisebenzisa ii-rolling mills ezilawulwa yikhompyutha ukuqinisekisa ukunyamezelana okuchanekileyo, okwenza ezi plate zihambelane neeprojekthi zokwakha nobunjineli ezichanekileyo.
Ngokwembono esebenzayo, iinjineli, abenzi boyilo, kunye nabaphathi beeprojekthi badla ngokujonga ukuthembeka kunye nokufumaneka kwekhonkco lokubonelela xa bechaza amanqanaba entsimbi. Ababoneleli abaphambili babonelela ngezi plate kuluhlu olubanzi lobukhulu, ububanzi, kunye nobude ukuze zilungele uyilo lwesakhiwo olucwangcisiweyo. Ukongeza, abavelisi abaninzi banikezela ngeendibano ezisikiweyo, ezigrunjwe kwangaphambili, okanye ezidityanisiweyo, ukunciphisa umsebenzi kwindawo kwaye kukhawulezise ixesha leprojekthi.
Ukuququmbela,I-ASTM A572 Ibanga lama-50iipleyiti zentsimbi ezigoqiweyo ezishushukwayeIipleyiti zentsimbi ezihonjisiweyo ezishushu ze-ASTM A992ziyaqhubeka nokuba yintsika yobunjineli bezakhiwo banamhlanje. Nganye inika indibaniselwano eyahlukileyo yamandla, ukuguquguquka, kunye nokusebenza kakuhle, eyenzelwe iimfuno ezithile zokwakha kunye nokuveliswa. Nokuba isetyenziswa kwiibhulorho, kwizakhiwo zorhwebo, okanye kumaqonga emizi-mveliso, ukukhetha umgangatho wentsimbi ofanelekileyo kuqinisekisa ukhuseleko, ukuqina, kunye nokuthembeka kwesakhiwo ixesha elide. Kwishishini apho ukuchaneka kunye nokusebenza kubalulekile, ezi pleyiti zimbini zentsimbi zihlala zizisombululo ezithembekileyo kwiinjineli kwihlabathi liphela.
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Indawo yophuhliso lweshishini laseKangsheng,
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Ixesha lokuthumela: Jan-05-2026