Kwinkqubo yemizi-mveliso yanamhlanje, ii-coil zentsimbi ezigoqwe ngobushushu zizinto ezisisiseko, kwaye ulwahlulo lwazo lweemodeli kunye nomahluko wokusebenza zichaphazela ngokuthe ngqo indlela yophuhliso lwamashishini asezantsi. Iimodeli ezahlukeneyo zee-coil zentsimbi ezigoqwe ngobushushu zidlala indima engenakutshintshwa kwicandelo lokwakha, iimoto, amandla, njl. kunye nokwakheka kwazo okwahlukileyo kweekhemikhali kunye neempawu zoomatshini. Oku kulandelayo kuza kugxila ekuhlalutyeni iimodeli ze-coil zentsimbi ezigoqwe ngobushushu ezinemfuno ephezulu yemarike kunye nomahluko wazo ophambili.
Amandla aPhambili aPhambili: Q235B kunye neSS400
I-Q235B yeyona ntsimbi yesakhiwo esetyenziswa kakhulu eTshayina enekhabhoni ephantsi, enomxholo wekhabhoni omalunga ne-0.12%-0.20%, kwaye ineempawu ezilungileyo zeplastiki kunye nokuwelda. Amandla ayo okuvelisa yi-≥235MPa kwaye isetyenziswa kakhulu kwizakhelo zokwakha, izixhasi zeebhulorho kunye neendawo zoomatshini ngokubanzi. Kwishishini lokwakha, ii-I-beams, ii-channel steels kunye nezinye iintsimbi ezenziwe ngee-Q235B hot-rolled steel coils zingaphezulu kwe-60%, zixhasa ulwakhiwo lweziseko zedolophu.
I-SS400 yintsimbi yesakhiwo sekhabhoni esetyenziswa kwihlabathi liphela enamandla afana ne-Q235B, kodwa ilawulwa ngokungqongqo kokungcola kwesalfure kunye ne-phosphorus kunye nomgangatho ongcono womphezulu. Kwicandelo lokwakha iinqanawa, ii-SS400 coils eziqengqelekayo ezishushu zihlala zisetyenziselwa iindawo zesakhiwo senqanawa. Ukumelana kwayo nokugqwala kwamanzi olwandle kungcono kunentsimbi yekhabhoni eqhelekileyo, okuqinisekisa ukhuseleko lohambo lwaselwandle.
Abameli abanamandla aphezulu: Q345B kunye neQ960
I-Q345B yintsimbi enamandla kakhulu ene-alloy ephantsi eyongeziweyo nge-1.0%-1.6% ye-manganese, kwaye amandla okuvelisa angaphezulu kwe-345MPa. Xa kuthelekiswa ne-Q235B, amandla ayo anyuswa malunga ne-50%, ngelixa igcina ukudityaniswa okuhle. Kubunjineli bebhulorho, ii-box girders ezenziwe ngee-Q345B hot-rolled steel coils zinokunciphisa ubunzima nge-20%, zinciphise kakhulu iindleko zobunjineli. Ngo-2023, ukwakhiwa kwebhulorho yasekhaya kuya kudla ngaphezulu kweetoni ezili-12 zezigidi zee-Q345B hot-rolled coils, ezibalelwa kwi-45% yemveliso iyonke yolu hlobo.
Njengommeli oqhelekileyo wentsimbi enamandla kakhulu, i-Q960 ifumana amandla okuvelisa angama-≥960MPa ngokusebenzisa itekhnoloji ye-microalloying (ukongeza i-vanadium, i-titanium kunye nezinye izinto) kunye neenkqubo zokulawula ukuqengqeleka nokulawula ukupholisa. Kwicandelo loomatshini bobunjineli, ubukhulu bengalo ye-crane eyenziwe nge-Q960 hot-rolled coil bunokwehliswa bube ngaphantsi kwe-6mm, kwaye amandla okuthwala umthwalo anyuswe kathathu, nto leyo ekhuthaza ukuphuculwa okulula kwezixhobo ezifana nee-excavators kunye nee-cranes.
Uphawu oluKhethekileyo: I-SPHC kunye ne-SAPH340
I-SPHC yimveliso ekumgangatho ophezulu phakathi kweentsimbi ezishushu eziqengqelekayo eziphantsi kwekhabhoni. Ngokuphucula inkqubo yokuqengqeleka ukulawula ubungakanani bengqolowa, ulwandiso lufikelela ngaphezulu kwama-30%. Kwishishini lezixhobo zasekhaya, ii-coils ze-SPHC ezishushu eziqengqelekayo zisetyenziselwa ukwenza ii-housings ze-compressor zefriji. Ukusebenza kwayo okunzulu komzobo kuqinisekisa ukuba izinga elifanelekileyo lokwenza umphezulu ogobileyo ontsonkothileyo lidlula ama-98%. Ngowama-2024, ukusetyenziswa kwee-coils ze-SPHC ezishushu eziqengqelekayo kwintsimi yezixhobo zasekhaya zasekhaya kuya kunyuka nge-15% unyaka nonyaka ukuya kwi-3.2 yezigidi zeetoni.
Njengentsimbi yesakhiwo seemoto, i-SAPH340 ifikelela kwibhalansi phakathi kwamandla kunye nokuqina ngokongeza i-0.15%-0.25% yekhabhoni kunye ne-trace boron. Ekwenzeni iifreyimu zebhetri yesithuthi esitsha samandla, ii-coils ze-SAPH340 ezijijekileyo ezishushu zinokumelana nemithwalo enamandla engaphezulu kwe-500MPa kwaye zihlangabezane neemfuno zeenkqubo zokuwelda ezitshixwayo. Ngo-2023, umlinganiselo wee-coils ezijijekileyo ezishushu zalolu hlobo ezisetyenziswa kwizithuthi zamandla amatsha zasekhaya ufikelele kwi-70% yeendawo zesakhiwo sebhetri.
| Imodeli | Amandla okuKhula (i-MPa) | Ukwandiswa (%) | Imizekelo yeSicelo esiQhelekileyo |
| Q235B | ≥235 | ≥26 | Izakhiwo zezakhiwo, oomatshini ngokubanzi |
| Q345B | ≥345 | ≥21 | Iibhulorho, iinqanawa zoxinzelelo |
| I-SPHC | ≥275 | ≥30 | Izixhobo zasekhaya, iinxalenye zeemoto |
| Q960 | ≥960 | ≥12 | Oomatshini bobunjineli, izixhobo ezikumgangatho ophezulu |
Ukuba ufuna ukwazi okungakumbi ngentsimbi, nceda uqhubeke unike ingqalelo okanye unxibelelane nathi.
IQELA LASEBUKHOSINI
Idilesi
Indawo yophuhliso lweshishini laseKangsheng,
Isithili saseWuqing, isixeko saseTianjin, eTshayina.
I-imeyile
Amaxesha okusebenza
UMvulo-NgeCawa: Inkonzo yeeyure ezingama-24
Ixesha leposi: Epreli-02-2025