ibhena_yephepha

Ulwakhiwo lweNsimbi lwe-ASTM A992, A572, A283, A913: Umahluko oPhambili kwiMarike yoLwakhiwo lweNsimbi yeHlabathi

Namhlanje, ukukhetha uhlobo olufanelekileyo lwentsimbi kubalulekile kwisidima solwakhiwo, ukwenziwa kwayo, kunye neendleko zeprojekthi iyonke kwishishini lokwakha. Phantsi kwemigangatho yaseMelika kukho iintlobo ezine eziqhelekileyo zentsimbi.intsimbi yesakhiwo i-ASTM A992, A572, A283 kunye ne-A913nganye kwezi ntsimbi inamanqanaba ahlukeneyo okusebenza kunye neemfuno zeprojekthi.

iqela lasebukhosini lesakhiwo sentsimbi (2)
isakhiwo sesinyithi (4)

Umahluko kwizinto eziphathekayo kunye noomatshini

I-ASTM A992
Udidi: Intsimbi yolwakhiwo enamandla aphantsi (HSLA) enamandla aphezulu
Uxinzelelo oluncinci: Amandla okukhupha i-345 MPa (50 ksi)
Uphawu: Ulwakhiwo lwezinto ezisetyenziswayo ze-weld “umenzi we-weld kunye nezinto ezisetyenziswayo ze-weld ezinxulumene noxinzelelo” lulawulwa ngokuqinileyo ukuqinisekisa ukuhambelana nokuqina.
Ifomu Ephambili: Yenzelwe ngokukodwa i-hot roll wide flange (i-W/H beam).
I-A992 yintsimbi eqhelekileyo enamandla aphezulu eMntla Melika yokwakha intsimbi yesakhelo.

I-ASTM A572
Udidi: Intsimbi yesakhiwo ye-alloy ephantsi enamandla aphezulu (HSLA)
Amabanga: 42, 50, 55, 60, 65
Inqanaba lamandla: Likhulu kunentsimbi yekhabhoni eqhelekileyo.
Ubonelelo: Iipleyiti, ii-angles, iitshaneli, imiqadi nokunye
Amanqanaba asezantsi (iBanga lama-42,50) anokudityaniswa ngeenkqubo eziqhelekileyo zokuwelda, Amanqanaba aphezulu (iBanga lama-65) afuna iinkqubo ezikhethekileyo zokuwelda okanye uvavanyo olongezelelweyo olufana ne-PWHT njl.

I-ASTM A283
Uhlobo: Intsimbi yesakhiwo sekhabhoni (intsimbi ethambileyo)
Amanqanaba: ABCD = Iyafumaneka
Amandla: Abuthathaka kune-A572 kunye ne-A992
Ungathi kwakufana nokwenza nokuthungela ithole lendlovu ngexabiso lendlovu endala.
I-ASTM A283 elula kuphela eyenzelwe ukusetyenziswa kwizakhiwo ezingezizo ezibalulekileyo.

I-ASTM A913
Uhlobo: Intsimbi enamandla aphezulu ene-alloy ephantsi esebenzisa i-QST (ukucima kunye nokuzibamba)
Amabanga: 50, 65, 70 = Iyafumaneka
Uphawu: Amandla amakhulu, ukuqina okugqwesileyo kunye nokudityaniswa kakuhle kwintsimbi enamandla kakhulu.
Ifomu Ephambili Yeebhanti zeflange ezibanzi neziqinileyo
I-A913 isetyenziswa kakhulu apho iindawo ezinamandla aphezulu kunye nezincinci zibalulekile kwizakhiwo ezinkulu nezinde ezenziwe ngentsimbi.

Umahluko kwiSicelo

I-ASTM A992
Izakhiwo zorhwebo nezentsimbi zendlu
Iifreyimu zezakhiwo eziphakamileyo neziphakathi
Izakhiwo zoshishino nezokusasazwa
Isizathu: Inokuthenjwa ngokukhuselekileyo kwaye idityaniswe ngokulula, isetyenziswe emzimbeni wemoto.

I-ASTM A572
Iibhulorho
Iifektri
Iinqaba kunye nezixhobo zamandla
Amaqonga anzima
Isizathu: Iinjineli zoyilo zinokuphucula ibhalansi phakathi kwamandla kunye neendleko ngamanqanaba ahlukeneyo.

I-ASTM A283
Izakhiwo ezisezantsi
Iishedi zentsimbi ekhaphukhaphu kunye neeworkshops
Iifama kunye nezakhiwo zexeshana
Izinto ezingabalulekanga
Isizathu: Ixabiso liphantsi kwaye kulula ukuyiphatha, kodwa inomthamo omncinci wokuthwala.

I-ASTM A913
Iibhilikhi ezikroliweyo
Iibhulorho ezinde
Amabala emidlalo kunye neeholo zorhwebo
Iiprojekthi ezinkulu zemizi-mveliso
Isizathu: Amalungu amancinci kunye nobude obude bunokufezekiswa ngamandla aphezulu kakhulu.

Imarike kunye nokukhethwa kweSithili

Ulwakhiwo lweNsimbi lwe-ASTM A992: Ifumaneka eMelika naseKhanada, eMbindi Mpuma, eMzantsi-mpuma Asia kwiSakhelo seSakhiwo.

Ulwakhiwo lweNsimbi lwe-ASTM A572: Ikhethwa kakhulu kwiSithili saseMelika nakwiiNdawo eziJolise kwiZiseko zoPhuhliso ezifana neeBridges kunye neZakhiwo eziNzima.

Ulwakhiwo lweNsimbi lwe-ASTM A283: Isetyenziswa kakhulu kwihlabathi lesithathu ekwakheni izinto ezingabizi kakhulu nezilula.

Ulwakhiwo lweNsimbi lwe-ASTM A913: Isetyenziswa kakhulu kumazwe aphuhlileyo nakwiindawo ezinkulu zeprojekthi ezifana ne-USA, iYurophu, uMbindi Mpuma, neMpuma Asia.

Iingqwalasela zeendleko kunye nezoQoqosho

A283Ixabiso eliphantsi kunye nomgangatho ophantsi

A992: Ixabiso eliphakathi, ulungelelwaniso oluhle lokuqina kunye nokulula kokwenziwa

A572Ixabiso lixhomekeke kwinqanaba

A913: Ixabiso eliphezulu ngeyunithi nganye, kodwa amandla aphezulu anciphisa itoni yentsimbi iyonke

Iintsimbi ezinamandla aphezulu zinokunciphisa iindleko zeprojekthi zizonke ngokunciphisa ubungakanani bezinto zokwakha, ezothutho kunye nokufakwa kwazo.

Ukwenziwa kunye nokuWelda

A283: Kulula ukusika nokuwelda

A992: Yenzelwe ukudityaniswa ukuze isetyenziselwe ulwakhiwo

A572: Iyanyibilika, kodwa ulawulo oluqinileyo luyafuneka kwiimakethi eziphezulu

A913: Indlela entsha evumela amandla amahle okuwelda kumanqanaba aphezulu kakhulu okuqina.

Isishwankathelo kunye noThelekiso

Umgangatho Inqanaba lamandla Ukusetyenziswa Okuqhelekileyo Inqanaba leendleko Iimarike ezishushu
I-ASTM A992 Phezulu Izakhiwo, izakhelo Phakathi I-USA, uMbindi Mpuma, i-Asia yaseMzantsi-mpuma
I-ASTM A572 Phakathi–Phezulu Iibhulorho, izityalo Phakathi–Phezulu Amazwe aseMelika, imimandla yeZiseko zoPhuhliso
I-ASTM A283 Iphantsi Izakhiwo zokukhanya Iphantsi Afrika, eMzantsi Asia, eMbindi Melika
I-ASTM A913 Phezulu kakhulu Ii-skyscrapers, iiprojekthi ezinkulu Phezulu I-USA, iYurophu, uMbindi Mpuma, iMpuma Asia

I-ASTM A283, A992, A572 kunye ne-A913 ziindlela ezine zokusebenza kwesinyithi solwakhiwo. I-A283 yenzelwe uqoqosho, i-A992 yifreyimu yokwakha eqhelekileyo, i-A572 inikezela ngeendlela ezahlukeneyo zokomelela kweziseko zophuhliso kwaye i-A913 yeyona xabiso lilungileyo kwizicelo zesakhiwo esinzima nesiphezulu. Iiprojekthi zokwakha ezikhulayo zibangela ukufudukela ngokubanzi kwiintsimbi zolwakhiwo ezinamandla aphezulu kwimarike yamazwe ngamazwe.

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Amaxesha okusebenza

UMvulo-NgeCawa: Inkonzo yeeyure ezingama-24

Ixesha leposi: Jan-20-2026