Kwinkqubo yoshishino yanamhlanje, iikhoyili zetsimbi ezishushu ezishushu zizinto ezisisiseko, kwaye ukuhlukahluka kwazo kweemodeli kunye nokungafani kokusebenza kuchaphazela ngokuthe ngqo ulwalathiso lophuhliso lwamashishini asezantsi. Iimodeli ezahlukeneyo zeekhoyili zetsimbi ezishushu zidlala indima engenakuthathelwa indawo kwiindawo zokwakha, iimoto, amandla, njl. Oku kulandelayo kuya kugxila ekuhlalutyeni imodeli ye-coil yensimbi eshushu kunye neyona mfuno ephezulu yeemarike kunye nokungafani kwazo okuphambili.
Amandla angundoqo asisiseko: Q235B kunye ne-SS400
I-Q235B yeyona nto isetyenziswa ngokuqhelekileyo i-low-carbon structural steel e-China, enomxholo wekhabhoni malunga ne-0.12% -0.20%, kwaye ine-plasticity enhle kunye neepropati ze-welding. Amandla ayo esivuno yi-≥235MPa kwaye isetyenziswa ngokubanzi kwizakhelo zokwakha, izixhaso zebhulorho kunye neenxalenye zoomatshini ngokubanzi. Kwishishini lokwakha, i-I-beams, i-channel steels kunye nezinye iintsimbi ezenziwe nge-Q235B i-coil coils ye-hot-rolled-rolled i-akhawunti engaphezulu kwe-60%, ixhasa i-skeleton yezakhiwo zasezidolophini.
I-SS400 yintsimbi ye-carbon structural esetyenziswa kumazwe ngamazwe enamandla afanayo kwi-Q235B, kodwa ulawulo olungqongqo lwesulfure kunye nokungcola kwe-phosphorus kunye nomgangatho ongcono womphezulu. Kwintsimi yokwakhiwa kweenqanawa, iikhoyili ezishushu ze-SS400 zihlala zisetyenziselwa iindawo zesakhiwo se-hull. Ukumelana kwayo nokugqwala kwamanzi olwandle kungcono kunentsimbi yekhabhoni eqhelekileyo, iqinisekisa ukhuseleko lohambo lwaselwandle.
Abameli bamandla aphezulu: Q345B kunye ne-Q960
I-Q345B i-alloy-alloy high-high-forty steel kunye ne-1.0% -1.6% ye-manganese eyongeziweyo, kwaye amandla okuvelisa angaphezulu kwe-345MPa. Xa kuthelekiswa ne-Q235B, amandla ayo anyuka malunga ne-50%, ngelixa egcina i-weldability efanelekileyo. Kubunjineli bebhulorho, iibhokisi zebhokisi ezenziwe nge-Q345B iikhoyili zetsimbi ezitshisayo zinokunciphisa ubunzima nge-20%, ukunciphisa kakhulu iindleko zobunjineli. Kwi-2023, ukwakhiwa kwebhuloho yasekhaya kuya kudla ngaphezu kwe-12 yezigidi zeetoni ze-Q345B iikhoyili ezishushu ezishushu, zibalelwa kwi-45% yesiphumo esipheleleyo solu hlobo.
Njengommeli oqhelekileyo wentsimbi ye-ultra-high, i-Q960 ifezekisa amandla esivuno se-≥960MPa ngokusebenzisa iteknoloji ye-microalloying (ukongeza i-vanadium, i-titanium kunye nezinye izinto) kunye neenkqubo ezilawulwayo zokupholisa kunye nokulawulwa kokupholisa. Kwintsimi yoomatshini bobunjineli, ubukhulu bengalo ye-crane eyenziwe nge-coil ye-Q960 eshushu-eshushu ingancitshiswa ibe ngaphantsi kwe-6mm, kwaye umthamo wokuthwala umthwalo unyuswe ngamaxesha angama-3, okukhuthaza ukuphuculwa kwezixhobo ezilula ezifana ne-excavators kunye ne-cranes.
Umlinganiselo okhethekileyo: SPHC kunye ne-SAPH340
I-SPHC yimveliso ephezulu phakathi kweentsimbi ze-carbon-rolled low-rolled low. Ngokulungisa inkqubo yokuqengqeleka ukulawula ubungakanani beenkozo, ulwandiso lufikelela ngaphezu kwama-30%. Kwishishini lezixhobo zasekhaya, iikhoyili ezishushu ze-SPHC zisetyenziselwa ukwenza ii-compressor housings zefriji. Umzobo wayo onzulu wokwenza umzobo uqinisekisa ukuba umgangatho ofanelekileyo wokwakheka komphezulu ogobileyo udlula i-98%. Ngo-2024, ukusetyenziswa kweekhoyili ezishushu ze-SPHC kwintsimi yezixhobo zasekhaya zasekhaya ziya kunyuka nge-15% ngonyaka ukuya kwi-3.2 yezigidi zeetoni.
Njengentsimbi yesakhiwo semoto, i-SAPH340 ifezekisa ukulingana phakathi kwamandla kunye nokuqina ngokongeza i-0.15% -0.25% yekhabhoni kunye ne-trace boron. Ekwenzeni iifreyimu zebhetri yemoto yamandla amatsha, i-SAPH340 iikhoyili eziqengqelekayo zinokumelana nemithwalo eguquguqukayo engaphezulu kwe-500MPa kwaye ihlangabezane neemfuno zeenkqubo zokuwelda. Ngo-2023, umlinganiselo weekhoyili ezishushu zolu hlobo ezisetyenziswa kwiimoto zasekhaya zamandla amatsha ziye zafikelela kwi-70% yeenxalenye zesakhiwo sebhetri.
| Umzekelo | Isivuno Amandla (MPa) | Ubude (%) | Iimeko zosetyenziso oluqhelekileyo |
| Q235B | ≥235 | ≥26 | Izakhiwo zokwakha, oomatshini ngokubanzi |
| Q345B | ≥345 | ≥21 | Iibhulorho, iinqanawa zoxinzelelo |
| SPHC | ≥275 | ≥30 | Izixhobo zasekhaya, iinxalenye zemoto |
| Q960 | ≥960 | ≥12 | Oomatshini bobunjineli, izixhobo eziphezulu |
Ukuba ufuna ukwazi ngakumbi malunga nentsimbi, nceda uqhubeke ubeke ingqalelo okanye uqhagamshelane nathi.
IQELA LABHORA
Idilesi
Indawo yoshishino yophuhliso lweKangsheng,
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Iiyure
UMvulo-NgeCawa: Inkonzo yeeyure ezingama-24
Ixesha lokuposa: Apr-02-2025