Umenzi wemibhobho etyebileyo enezikwere
Njengoko igama libonisa, umbhobho wesikwere luhlobo lohlobo lombhobho wesikwere. Izinto ezininzi zinokwenza umzimba wombhobho wesikwere. Isetyenziselwa injongo kwaye phi. Uninzi lwemibhobho yesikwere yimibhobho yentsimbi. Emva kokukhupha, ukulinganisa, ukukhwabanisa kunye ne-welding, zenza imibhobho ejikelezayo, ehlanganiswe kwimibhobho yesikwere, kwaye emva koko inqunywe ubude obufunekayo. Ngokubanzi, kukho i-50 square tubes kwiphakheji nganye. Ngokubhekiselele kwibala, iityhubhu ezininzi zesikwere zikho kwiinkcukacha ezinkulu, ukusuka kwi-10 * 10 * 0.8-1.5 ukuya ku-500 * 500 * 10-25. Iityhubhu zesikwere zisetyenziselwa iityhubhu zesikwere, iityhubhu zokuhombisa, iityhubhu zesquare zokwakha, iityhubhu zesikwere zomatshini, njl.
Umbhobho osisikwere ongqingqwa luhlobo lombhobho wentsimbi otyebileyo obiyelwe ngodonga onecandelo lesikwere esinomgongxo, okwaziwa ngokuba yiprofayili yentsimbi eyenziwe ngokubanda. Yintsimbi yecandelo elinobume becandelo lesikwere kunye nobukhulu, olwenziwa nge-Q235 eshushu-eshushu okanye i-coil-rolled strip okanye i-coil njengento esisiseko, ukugoba okubandayo kunye ne-high-frequency welding. Ukongeza ukutyeba eludongeni ubukhulu, ubungakanani imbombo kunye emphethweni flatness of eshushu-iqengqiwe extra engqingqwa umbhobho isikwere umbhobho ukufikelela okanye nkqu inqanaba lokumelana ukuwelda abandayo enziwe umbhobho square.
Iityhubhu ezishinyeneyo ezinodonga ezisikwere zisetyenziselwa ulwakhiwo, ukuveliswa koomatshini, iiprojekthi zentsimbi kunye nentsimbi, ukwakhiwa kweenqanawa, ukuxhasa umbane welanga, ubunjineli besakhiwo sentsimbi, ubunjineli bamandla, izityalo zamandla, oomatshini bezolimo kunye neekhemikhali, iindonga zamakhethini eglasi, i-chassis yemoto, izikhululo zeenqwelo moya, ibhoyila. ukwakhiwa, umzila wendlela, ukwakhiwa kwezindlu, ezifana neetyhubhu zesikwere, njl.
Ukuhlelwa kwenkqubo yokuvelisa umbhobho otyebileyo obiyelweyo
Ngokwenkqubo yemveliso, udonga olungqingqwa lombhobho lwesikwere lwahlulwe lwaba ngumbhobho oshinyeneyo wodonga olungqingqwa olushushu, umbhobho osisikwere owenziwe ngokubanda, umbhobho otyhidiweyo wodonga lwesikwere kunye nombhobho odityanisiweyo wesikwere.
(a) Ngokwenkqubo - i-arc welding square tube, ukumelana ne-welding square tube (i-frequency ephezulu kunye ne-frequency ephantsi), i-gas welding square tube kunye ne-furnace welding square tube.
(b) Ukwahlulwe nge weld - umbhobho odityanisiweyo othe tye kunye nombhobho osisikwere odityanisiweyo.
Iityhubhu zesikwere zohlulwe zibe ziityhubhu zesikwere zentsimbi eziqhelekileyo kunye neetyhubhu zesikwere sealloy ephantsi ngokwezinto eziphathekayo. Intsimbi yekhabhoni eqhelekileyo yahlulwe yaba: Q195, Q215, Q235, SS400, 20 # intsimbi, 45 # intsimbi, njl; Iintsimbi ze-alloy eziphantsi zihlulwe zibe yi-Q345, 16Mn, Q390, St52-3, njl.
Iityhubhu zesikwere zahlulwe ngokwemigangatho yesizwe yesikwere iityhubhu, iityhubhu zesikwere ezisemgangathweni zaseBritani, iityhubhu zesikwere ezisemgangathweni zaseMelika, iityhubhu zesikwere ezisemgangathweni zaseYurophu kunye neetyhubhu zesikwere ezingengomgangatho ngokwemigangatho yemveliso.
Imibhobho yesikwere ihlelwa ngokwemilo yecandelo:
(1) Icandelo elilula ityhubhu yesikwere - ityhubhu yesikwere, ityhubhu eludongeni olungqingqwa.
(2) Umbhobho osisikwere onecandelo elintsonkothileyo - umbhobho otyebileyo omile eludongeni, umbhobho osisikwere ovulekileyo wodonga, umbhobho otyebileyo wodonga olusisikwere kunye nombhobho osisikwere otyebileyo.
Ngokonyango lomphezulu, udonga olungqindilili lombhobho osisikwere lohlulwe lwaba: ludonga olungqindilili olushushu-diphu umbhobho ophindwe kabini, umbhobho otyebileyo owenziwe nge-electro galvanized square, umbhobho otyebileyo ofakwe i-oyile kunye nodonga olungqingqwa lombhobho ophindwe kabini.
Iityhubhu ezisikweri ezinodonga ezingqingqwa zihlelwa ngokosetyenziso lwazo-iityhubhu zesikwere zokuhombisa, iityhubhu zesikwere zesixhobo somatshini, iityhubhu zesikwere kushishino lomatshini, iityhubhu zesikwere kushishino lweekhemikhali, iityhubhu zesikwere solwakhiwo lwentsimbi, iityhubhu zesikwere sokwakha inqanawa, iityhubhu zesikwere zemoto. , iibhubhu zesikwere zeentsimbi zentsimbi kunye neentsika, kunye neetyhubhu zesikwere kwiinjongo ezikhethekileyo
Iityhubhu zesikwere zihlelwa ngokobunzima bodonga-iityhubhu ezityebileyo zodonga olusisikwere, iityhubhu ezityebileyo zodonga kunye neetyhubhu ezicekethekileyo zesikwere
Ifomula yokubala ubunzima bombhobho otyebileyo obiyelwe ngeendonga: 4 * ubukhulu bodonga * (ubude becala ubude bodonga) * 7.85
Ifomula yokubala yobunzima bombhobho oxande: {(umjikelezo ÷ 3.14) - ubukhulu bodonga} * ubukhulu bodonga * 0.02466
Inkcazo ephezulu yomgca wokuvelisa umbhobho wexande yenkqubo Institute yi-500mm * 500mm * 19mm, eyesibini kwihlabathi. Eyona 26 intshi square ityhubhu umgca ukuveliswa ityhubhu ye Nippon Steel ehlabathini 550mm * 550mm * 22mm. Okwangoku, ukucaciswa okukhulu kombhobho we-square rectangular kumazwe aseYurophu naseMelika yi-400 * 400 * 12.7mm.
Kwiminyaka yakutshanje, kunye notyalo-mali karhulumente kulwakhiwo lwenkunzi, ngakumbi nangakumbi iiprojekthi ezinkulu zikamasipala kunye nolwakhiwo kwilizwe lonke baye bamkela uhlobo lwesakhiwo sentsimbi. Ngenxa yeenzuzo zenkangeleko entle, uxinzelelo olufanelekileyo kunye nonyango olulula lwe-node, ubungakanani obukhulu betyhubhu engqindiweyo yetyhubhu yoxande isetyenziswa ngokubanzi kwisakhiwo sesikhululo seenqwelomoya iTruss inkqubo yesakhiwo kunye nenkqubo yokuxhasa udonga lomkhusane weendawo zemidlalo kunye namaziko eNgqungquthela kunye nemiboniso ngokubanzi. esetyenziswa njengamalungu entsimbi. Nangona kunjalo, kwisicelo esisebenzayo, iibhobho zetsimbi zesikwere kunye nezixande nazo zidibana neengxaki ezifuna ukusonjululwa ngokukhawuleza.
Ukuze ukunciphisa ubunzima self kunye nokuphucula ukusebenza ukhuseleko ezifana ukuxhathisa inyikima kunye nokuxhathisa impembelelo, high-amandla intsimbi iye yasetyenziswa ngokubanzi ekhaya nakwamanye amazwe, kwaye umda amandla impahla ifikelele 630mpa okanye nangaphezulu. Amandla okuqina kwesiseko sentsimbi yesikwere kunye nombhobho oxande oveliswe yinkqubo inokufikelela kwi-630mpa, ibekwe kuqala kwihlabathi ngokwenqanaba lamandla emveliso. Amandla aphezulu emveliso yomgca weNippon Steel eJapan yi-550MPa kuphela, kunye nomahluko ophantse ube yi-15%.
Ubuninzi betyhubhu yesikwere kunye ne-rectangular eveliswa yinkqubo yi-19mm. Ubunzima obuphezulu abubonakali kuphela kubukhulu obupheleleyo, kodwa kunye nobukhulu obunxulumene nemveliso. Ubunzima buyisalathisi esibalulekileyo sobunzima bokugoba okubandayo. Ityhubhu yesikwere ibonakaliswe ngomlinganiselo wobunzima bomda. Okwangoku, ngokuqhelekileyo kukholelwa ekhaya nakwamanye amazwe ukuba xa umlinganiselo wobunzima obungaphantsi kwe-10, imveliso inobunzima obukhulu bokubumba. Kwimibhobho yesikwere kunye ne-rectangular eveliswa yinkqubo, umlinganiselo wobunzima bomda wemveliso enecandelo elincinci kunye nobukhulu bodonga olukhulu linokufikelela kwi-7, njenge-100mm * 100mm * 14mm, 120mm * 120mm * 16mm, njl.
Umbhobho wesikwere owenziwe ngentsimbi eshushu owenziwe nge-B490RNQ udibana ngokupheleleyo kwaye ugqithise iimfuno zomgangatho wesizwe we-Q345B ngokweempawu zoomatshini kwiqondo lobushushu begumbi, ukubunjwa kwayo kunye neempawu zokusetyenzwa zilingana okanye zingcono kune-Q345B, kwaye umlinganiselo wesivuno uyahlangabezana neemfuno zenyikima yemigaqo yoshishino lolwakhiwo lwesizwe. Kwangaxeshanye, ukusebenza kwayo kobushushu obuphezulu bungcono kakhulu kuneQ345B yenqanaba elifanayo. Kwi-600, amandla esivuno se-B490RNQ ahlala kwi-310mpa, engaphezulu kakhulu kune-2/3 yeqondo lokushisa kwegumbi, ngelixa amandla okuvelisa i-Q345B kunye nobukhulu bodonga obungaphezulu kwe-8mm kwinkqubo ye-500 ingaphantsi kwe-2 / 3. amandla emveliso yobushushu begumbi.
