Kusiyanitsa pakati pa kugudubuza kotentha ndi kuzizira kumakhala makamaka kutentha kwa njira yogubuduza. “Kuzizira” kumatanthauza kutentha kwabwinobwino, ndipo “kutentha” kumatanthauza kutentha kwambiri. Kuchokera pamalingaliro azitsulo, malire pakati pa kuzizira kozizira ndi kugudubuza kotentha ayenera kusiyanitsidwa ndi kutentha kwa recrystallization. Ndiko kuti, kugubuduza m'munsimu kutentha recrystallization ozizira anagubuduza, ndi anagubuduza pamwamba pa recrystallization kutentha ndi otentha anagubuduza. The recrystallization kutentha zitsulo ndi 450-600 ℃.
Zotsatirazi ndizofotokozera mwachidule mayankho a mafunso okhudza [Kusiyana pakati pa kugudubuza kotentha ndi kuzizira]:
Kusiyana pakati pa kuzizira kozizira ndi kugudubuza kotentha ndiko makamaka kutentha kwa ndondomeko yogudubuza. “Kuzizira” kumatanthauza kutentha kwabwinobwino, ndipo “kutentha” kumatanthauza kutentha kwambiri. Kuchokera pamalingaliro azitsulo, malire pakati pa kuzizira kozizira ndi kugudubuza kotentha ayenera kusiyanitsidwa ndi kutentha kwa recrystallization. Ndiko kuti, kugubuduza m'munsimu kutentha recrystallization ozizira anagubuduza, ndi anagubuduza pamwamba pa recrystallization kutentha ndi otentha anagubuduza. The recrystallization kutentha zitsulo ndi 450-600 ℃
Kugudubuza kotentha ndi kuzizira ndi njira zopangira mbale zachitsulo kapena mbiri, zomwe zimakhudza kwambiri mapangidwe ndi katundu wachitsulo. Kugudubuza kwachitsulo kumakhala kotentha kwambiri, ndipo kuzizira kozizira kumangogwiritsidwa ntchito popanga chitsulo chaching'ono ndi mbale zopyapyala. Ingots kapena billets ndizovuta kupundutsa ndi kukonza kutentha kwa firiji. Nthawi zambiri, amatenthedwa mpaka 1100-1250 ℃ kuti agubuduze. Kugudubuzika kumeneku kumatchedwa hot rolling. Kutentha kwakumapeto kwa kugudubuzika kotentha nthawi zambiri kumakhala 800-900 ℃, ndiyeno nthawi zambiri kumakhala utakhazikika mumlengalenga, kotero kuti kutentha kwapang'onopang'ono kumakhala kofanana ndi kukhazikika kwamankhwala. Zitsulo zambiri zimakulungidwa ndi kugudubuza kotentha. Cold anagubuduza amatanthauza anagubuduza njira ya extruding zitsulo ndi kusintha mawonekedwe a zitsulo ndi kuthamanga masikono firiji. Ngakhale kuti ndondomekoyi imapangitsanso kuti mbale yazitsulo ikhale yotentha, imatchedwabe kuzizira kozizira.
Chikalatachi chimafotokoza za luso yobereka zinthu mphamvu mkulu ndi nyengo kugonjetsedwa magetsi welded ndi kumizidwa arc welded ozizira anapanga zitsulo structural dzenje zigawo zozungulira, lalikulu, amakona anayi kapena elliptical mitundu ndipo anapanga ozizira popanda wotsatira kutentha mankhwala ena kuposa kutentha mankhwala a weld mzere. . ZINDIKIRANI 1 Zofunikira pakulolera, miyeso ndi katundu wagawo zitha kupezeka mu EN 10219 2. ZINDIKIRANI 2 Kusamala kwa ogwiritsa ntchito kumakopeka ndi mfundo yakuti pamene kuzizira komwe kumapangidwa m'makalasi mu chikalatachi kungakhale ndi machitidwe ofanana ndi magiredi omaliza mu EN 10210 3, mawonekedwe a magawo apakati ndi amakona anayi apakati pa EN 10219 2 ndi EN 10210 2 sali ofanana. ZOYENERA KUCHITA 3 Mitundu yosiyanasiyana yazitsulo yatchulidwa mu chikalatachi ndipo wogwiritsa ntchito akhoza kusankha kalasi yoyenera kwambiri pa zomwe akufuna kugwiritsa ntchito ndi ntchito. Magiredi ndi makina amakina, koma osati mawonekedwe omaliza a magawo ozizira opangidwa ndi dzenje nthawi zambiri amafanana ndi omwe ali mu EN 10025 3, EN 10025 4, EN 10025 5, EN 10025 6, EN 10149 2 ndi EN 10149 3.
EN 10210-3-2020
Kutentha yomalizidwa zitsulo structural dzenje zigawo- Gawo 3: Miyezo yobweretsera mwaukadaulo yamphamvu kwambiri komanso zitsulo zolimbana ndi nyengo
Chikalatachi chimafotokoza za luso loperekera mphamvu zamphamvu kwambiri komanso kugonjetsedwa ndi nyengo yotentha, yotsekedwa ndi magetsi, yotsekedwa ndi madzi arc welded zitsulo zozungulira, masikweya, amakona anayi kapena elliptical. Imagwira pazigawo zopanda kanthu zomwe zimapangidwira kutentha, zokhala ndi kutentha kapena popanda kutentha, kapena kuzizira ndi kutentha kopitilira 580 ° C kuti mupeze makina ofanana ndi omwe amapezeka muzinthu zotentha. ZINDIKIRANI 1 Zofunikira pakulolera, miyeso ndi katundu wagawo zafotokozedwa mu EN 10210-2. ZINDIKIRANI 2 Chidwi cha ogwiritsa ntchito chimakopeka ndi mfundo yoti ngakhale kuzizira komwe kumapangidwa mu TS EN 10219-3 kumatha kukhala ndi mawonekedwe amamakina ofananira ndi magiredi omaliza m'chikalatachi, magawo a magawo apakati ndi amakona anayi mu EN 10210-2 ndi EN 10219-2 sizofanana. ZINDIKIRANI 3 Magiredi osiyanasiyana afotokozedwa m'chikalatachi ndipo wogwiritsa ntchito amatha kusankha giredi yoyenera kwambiri malinga ndi zomwe akufuna kugwiritsa ntchito komanso momwe angagwiritsire ntchito. Magiredi ndi makina amagawo omalizidwa opanda kanthu nthawi zambiri amafanana ndi omwe ali mu EN 10025-4, EN 10025-5 ndi EN 10025-6. ZOYENERA KUDZIWA 4 Zofunikira pazigawo zopanda msoko komanso zitsulo zomangika kuti zigwiritsidwe ntchito m'madera akunyanja zaphimbidwa ndi mndandanda wa EN 10225. ZOYENERA KUCHITA 5 Magawo a Spiral welded hollow akuyembekezeka kugwiritsidwa ntchito mosamala pamapulogalamu okhudzana ndi machitidwe amphamvu (kupsinjika kwa kutopa) popeza, mpaka pano, palibe chidziwitso chokwanira chokhudza momwe amagwirira ntchito.
Atchule lonse ntchito ozizira anapanga amakona anayi chubu
M'nyumba zamafakitale ndi zachitukuko ku China, konkriti yokhazikika yakhala ikugwiritsidwa ntchito kwa zaka zambiri
Mkombero wautali ndi kuipitsa kwakukulu. M'zaka zaposachedwapa, ndi bwino otentha adagulung'undisaH-mtengozopangidwa ndi Ma Steel ndi Lai Steel
Malinga ndi kuyambika kwa msika, kugwiritsa ntchito kamangidwe kazitsulo muzomangamanga kwakhala kukukulirakulira. Nyumba zoyesera zazitsulo zosiyanasiyana, nyumba zachitsanzo ndi nyumba zodziwika bwino zidayambitsidwa chimodzi ndi chimodzi. Miyezo ndi mafotokozedwe a mapangidwe ndi zomangamanga nawonso ayamba kulowa pagawo la kuwongolera pang'onopang'ono. Makampani opanga zitsulo ku China apita patsogolo kwambiri m’zaka zaposachedwapa.
Komabe, pakadali pano, nyumba zaku China zomangira zitsulo zimagwiritsidwa ntchito makamaka pazitsulo zotentha zowoneka ngati H komanso zitsulo zosiyanasiyana. Kuthekera kwa chitsulo chowotcha chopangidwa ndi H ku China chafika matani 3 miliyoni, ndipo kutulutsa kwachitsulo chopangidwa ndi chitsulo chopangidwa ndi H ndi zitsulo zosiyanasiyana ndi matani masauzande angapo. The linanena bungwe mipope welded mu China ndi matani oposa 7 miliyoni pachaka, amene linanena bungwe lamapaipi ozizira amakona ndi makona anayindi mitundu yosiyanasiyana yazitsulo zoziziritsa kukhosi zomangira zitsulo zosakwana 5% za zitsulo zozizira. Kugwiritsa ntchito zitsulo zoziziritsa kukhosi m'mafakitale ndi zomangamanga ku China kuli pagawo loyambirira. Chitoliro chozizira chokhala ndi mawonekedwe ozungulira komanso makona amakona omwe amawotcherera chitoliro changoyamba kumene kusintha chitsulo chowoneka ngati H chotentha ngati chitsulo chopanga chitsulo. Zitsulo zina zozizira sizimagwiritsidwa ntchito pang'onopang'ono pantchito yomanga.
yuantai zitsulo dzenje gawo kwa crane,yuantai yopanda msoko gawo,yuantai square hollow gawo
Pakadali pano, Unduna wa Zomangamanga wamanga nyumba zoyeserera zachitsulo m'nyumba zamafakitale ndi zaboma, monga
Nyumba ziwiri zowonetsera zitsulo za Unduna wa Zomangamanga zinamangidwa ku Tianjin mu 2002. Mapaipi achitsulo anagwiritsidwa ntchito pa ntchitoyi.
Konkire ndime zitsulo mtengo chimango zitsulo analimbitsa konkire pachimake chubu (SRC) structural dongosolo, chiwerengero chonse cha polojekiti
8000m2, thupi lalikulu lili ndi zipinda khumi ndi chimodzi, ndime imodzi imapangidwa ndi chitoliro chozungulira, ndipo gawo lina limapangidwa ndi chitoliro chachitsulo.
350x350mm, makulidwe amasiyanasiyana ndi pansi, pomwe 1 ~ 3 pansi ndi 16mm, 4 ~
14mm kwa pansi 6, 12mm kwa 7 mpaka 9 pansi, 10mm kwa 10 mpaka 11 pansi, ndipo anatsanulira mu chitoliro zitsulo.
C40 konkriti.
Mtengowo umapangidwa ndi welded I-mtengo wokhala ndi mawonekedwe a 350x200x10x18mm, ndi slab pansi.
Ndi slab yophatikizika yokhazikika yokhala ndi nthiti zolimba kwambiri zozungulira. Panthawiyo, palibe wopanga ku China yemwe adatulutsa machubu akulu okhala ndi mainchesi akulu chotere, kotero machubu achitsulo adagwiritsidwa ntchito pantchitoyi, omwe anali mizati zinayi zowotcherera za BOX.
Ntchito yowonetsera zitsulo zanyumba ya Unduna wa Zomangamanga ku Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd. imakoka kudzoza kuwiri kuchokera pakugwiritsa ntchito zitsulo zozizira (makamaka chubu lamakona anayi) m'nyumba zachitsulo:
Choyamba, malo amsika a machubu akulu akulu-ozizira owoneka ngati amakona ndi akulu, ndipo kuchuluka kwapansi kwa nyumba zokhala ndi zitsulo ndikokwanira.
Ndi 10 ~ 18 pansi, zomanga zapakati ndi zazitali zotere zimakhalanso ndi zofunika zina pamachubu oziziritsa amakona anayi.
Chachiwiri, mapaipi azitsulo apakati ali ndi ubwino wowonekera pa mapaipi ozungulira zitsulo pazifukwa zitatu:
Choyamba, mapaipi apakati ndi ozungulira omwe ali ndi mbali yofanana kutalika ndi m'mimba mwake amakhala ndi mphamvu yonyamula bwino komanso magwiridwe antchito a seismic
Zabwino. Malinga ndi mayeso opangidwa ndi yunivesite ku Tianjin pa nkhani zitatu zachubu lalikulu lozungulira komanso chimango cha konkire chozungulira.
Kutalika kwa mbali ya chitoliro ndi 150mm, ndipo m'mimba mwake chitoliro chozungulira ndi 150mm. Zotsatira zoyesa zikuwonetsa kuti yoyambayo imagonjetsedwa ndi mphamvu yobereka
Kuchuluka kwa katundu ndi mphamvu yomaliza yonyamula ndi 80% yapamwamba kuposa yotsirizirayi, ndipo ndondomeko ya seismic performance index ili pafupi kuwirikiza kawiri;
Chachiwiri, kupanga mapaipi a square ndi kosavuta. Khomo la konkriti la nyumba yokhalamo zitsulo liyenera kupitilira
Pomanga, gawo lozungulira limasinthidwa kukhala gawo lalikulu;
Chachitatu, n'zovuta kuthana ndi kugwirizana pakati pa mizati yozungulira konkriti ndi matabwa. Kapangidwe kachitsulo kamtsogolo ku China
Pamsika, machubu ozungulira ozizira ndi ma rectangular adzakhala ndi gawo lofunikira.
Pamwamba kutentha mankhwala a zitsulo chitoliro akhoza kwambiri patsogolo kutopa malire a mankhwala workpiece. Mwachitsanzo, ukadaulo wopangira makina opangira theka la chitsulo chopangidwa ndi chitsulo ndi chithandizo chanthawi zonse cha kutentha, ndipo moyo wake wautumiki wawonjezedwa pafupifupi nthawi za 20 posintha kuchokera ku kutentha kwapamtunda kupita ku chithandizo cha kutentha. Komanso pamwamba kutentha mankhwala amachepetsa mwayi tilinazo mbali. Cholinga cha mankhwala kutentha pamwamba ndi bwino kusintha makhalidwe a mankhwala. Amagwiritsidwa ntchito kwambiri m'madera osiyanasiyana, omwe amagwirizana kwambiri ndi makhalidwe a onse awiri.
Nthawi yotumiza: Dec-21-2022
