Wotentha Wokulungidwa, Wozizira Wokulungidwa & Wokazinga

Kuthamanga kotentha

Kugudubuza kotentha kumayenderana ndi kuzizira kozizira, komwe kumayenda pansi pa kutentha kwa recrystallization, pamene kutentha kotentha kumadutsa pamwamba pa kutentha kwa recrystallization.

Ubwino:

Ikhoza kuwononga kuponyedwa kwa ingots zitsulo, kuyenga njere zachitsulo, ndikuchotsa zolakwika za microstructural, kuti bungwe lazitsulo likhale wandiweyani, makina amawongoleredwa bwino.Kuwongolera uku kumakhala makamaka pakugudubuza, kotero kuti chitsulo sichikhalanso isotropic pamlingo wina;thovu, ming'alu ndi looseness anapanga poponya akhoza welded pamodzi kutentha ndi kupanikizika.

Zoyipa:

1. Pambuyo pakuwotcha kotentha, zitsulo zopanda zitsulo mkati mwazitsulo (makamaka sulphides ndi oxides, ndi silicates) zimapanikizidwa kukhala mapepala owonda ndipo delamination (lamination) imapezeka.Delamination amawononga kwambiri katundu wa chitsulo kukangana motsatira makulidwe, ndipo pali chiopsezo cha interlaminar kung'ambika pa weld shrinkage.Zovuta zam'deralo zomwe zimachititsidwa ndi weld shrinkage nthawi zambiri zimafika kangapo pazovuta za zokolola ndipo zimakhala zokulirapo kuposa zomwe zimapangitsidwa ndi kutsitsa.

2. Kupanikizika kotsalira komwe kumachitika chifukwa cha kuzizira kosiyana.Zovuta zotsalira ndizodziwikiratu kupanikizika mkati popanda mphamvu zakunja, zigawo zosiyanasiyana zazitsulo zotentha zotentha zimakhala ndi zotsalira zotsalira, makamaka kukula kwa gawo la chitsulo, kumapangitsanso kupanikizika kotsalira.Ngakhale kuti zotsalira zotsalirazo zimakhala zokhazikika, zimakhalabe ndi zotsatira pa ntchito ya membala wachitsulo pansi pa mphamvu zakunja.Monga deformation, kukhazikika, kukana kutopa ndi zina zingakhale ndi zotsatira zoipa.

3. Zopangira zitsulo zotentha sizili zophweka kuzilamulira malinga ndi makulidwe ndi m'mphepete mwake.Timadziwa kuwonjezereka kwa kutentha ndi kutsika, monga chiyambi cha kutentha kukulungidwa ngakhale kutalika kwake ndi makulidwe ake ndi ofanana, kuziziritsa komaliza kumawonekerabe kusiyana kolakwika, kufalikira kwa mbali zolakwika, kuwonjezereka kwa ntchitoyo. za zoonekeratu.Ichi ndichifukwa chake sizingatheke kulongosola molondola za m'lifupi, makulidwe, kutalika, ngodya ndi mzere wamphepete mwachitsulo chachikulu.

 

Kuzizira kozizira

Kugubuduza pansi pa kutentha kwa recrystallization kumatchedwa kugudubuza kozizira, nthawi zambiri kugwiritsa ntchito ma coils otentha okulungidwa monga zopangira, pambuyo pickling kuchotsa makutidwe ndi okosijeni khungu kwa ozizira mosalekeza anagubuduza, chomalizidwa ndi adagulung'undisa koyilo zolimba, chifukwa mosalekeza mapindikidwe ozizira chifukwa cha kuzizira ntchito kuumitsa adagulung'undisa. mphamvu ya koyilo yolimba, kuuma, kulimba ndi zizindikiro za pulasitiki zimatsika, kotero kuti kupondaponda kumasokonekera, kungagwiritsidwe ntchito posintha magawo osavuta.Kuzizira kozizira nthawi zambiri kumatsekedwa.

Zozungulira zolimba zitha kugwiritsidwa ntchito ngati zopangira m'zomera zokometsera dipu zotentha, popeza zida zokometsera za dip zotentha zimakhala ndi mizere yolumikizira.

Makoyilo olimba okulungidwa nthawi zambiri amalemera matani 20-40 ndipo zozungulirazo zimakulungidwa mosalekeza pa kutentha kwa firiji motsutsana ndi zowotcha zokazinga zokazinga.

Makhalidwe azinthu: Chifukwa sichimatsekeka, kuuma kwake ndikwapamwamba kwambiri ndipo machinability ake ndi osauka kwambiri, kotero amatha kupindika munjira yosavuta yosakwana madigiri 90 (perpendicular to roll orientation).M'mawu osavuta, kugudubuza kozizira ndi njira yodzigudubuza pamaziko a ma coils otenthedwa, omwe nthawi zambiri amakhala akugudubuza kotentha - pickling - phosphating - saponification - ozizira kugudubuza.

Zozizira zozizira zimakonzedwa kuchokera ku pepala lotentha kutentha kutentha, ngakhale kuti chifukwa cha kugudubuza kumapangitsanso kuti mbale yachitsulo ikhale yotentha, koma imatchedwa kuzizira.Monga otentha adagulung'undisa pambuyo mosalekeza ozizira mapindikidwe ndi kuzizira adagulung'undisa mu makina zimatha osauka, molimba kwambiri, choncho ayenera annealed kubwezeretsa makina katundu, palibe annealing wotchedwa Kugudubuza molimba buku.Mipukutu yolimba yokulungidwa nthawi zambiri imagwiritsidwa ntchito kuchita popanda kupindika, zinthu zotambasula, 1.0 pansi pa makulidwe a zopindika molimba mwayi wopindika mbali zonse kapena mbali zinayi.

Pakugudubuza kozizira kuyenera kugwiritsa ntchito mafuta oziziritsa ozizira, maubwino ogwiritsira ntchito mafuta ozizira ndi awa:

1.Kuchepetsa kuchepetsa kugunda kwapakati, perekani mphamvu yoyendetsa, kugubuduza kugwiritsira ntchito mphamvu zochepa, kuti mupeze magawo ogubuduza okhutiritsa;

2. Perekani kuwala pamwamba pamwamba, kugubuduza kuchedwa makulidwe yunifolomu;

3.Good kuzirala zotsatira, akhoza mwamsanga kuchotsa kutentha anagubuduza, kuteteza masikono ndi anagudubuza mbali.Kuchita bwino kwa annealing, sikungabweretse chodabwitsa choyaka mafuta;

4.Ali ndi ntchito yanthawi yochepa yotsutsa dzimbiri, ikhoza kupereka chitetezo chanthawi yochepa chotsutsana ndi dzimbiri pazigawo zogubuduza.

Kusiyana pakati pa ozizira-wodzigudubuza ndi otentha-wodzigudubuza:

1.Cakale adagulung'undisa anapanga zitsulo amalola m`deralo buckling wa mtanda gawo kuti katundu katundu wa bala pambuyo buckling angagwiritsidwe ntchito mokwanira;pomwe zigawo zotentha zopindidwa sizilola kuti kutsekeka kwapakati pagawo kuchitike.

2. Hot-anagulung'undisa zigawo ndi ozizira adagulung'undisa zitsulo zotsalira kupsyinjika opangidwa ndi zifukwa zosiyanasiyana, kotero kugawa pa mtanda ndi osiyana kwambiri.Kugawidwa kwa kupsyinjika kotsalira mu gawo la mtanda wa zigawo zozizira zozizira zokhala ndi mipanda yopyapyala ndi mtundu wopindika, pamene kugawidwa kwa kupsyinjika kotsalira mu gawo la mtanda wa zigawo zotentha kapena zigawo zowotcherera ndi mtundu wa filimu.

3.Tiye ufulu torsional stiffness wa zigawo otentha anagulung'undisa ndi apamwamba kuposa zigawo ozizira adagulung'undisa, kotero torsional kukana zigawo otentha anagulung'undisa bwino kuposa zigawo ozizira adagulung'undisa.