Hanyoyin shirye-shirye da matsalolin aluminum kumfa sandwich panels

Shiri naaluminum kumfa sandwich panelsya kasu kashi biyu gaba daya. Kashi na farko shine a fara shirya kumfa na aluminium, sannan a haɗa kumfa aluminium tare da ɓangaren ƙarfe ta hanyoyi daban-daban, kamar haɗin siminti, hanyar feshin zafin jiki, da haɗin walda. Nau'i na biyu kuma shine a shirya jikin da aka riga aka kera na kumfa aluminium sandwich panel, sannan a dumama jikin da aka kera don yin kumfa mai tushe, sannan a sanyaya kumfa bayan kammala kumfa wato aluminum kumfa sandwich panel. Hanyoyin shirye-shiryen da aka fi amfani da su sun haɗa da matsi mai zafi - hanyar foda karfen ƙarfe, mirgina - shafa - hanyar kumfa, da sauransu.

1. Glued dangane

Manne yana nufin hanyar yin sanwici ta hanyar haɗa kumfa na aluminum zuwa sassan ƙarfe tare da manne masu dacewa. Tsarin gluing yana ɗaukar haɗin jiki don shirya sandwich panel, kuma hanyar tana da fa'idodi na hanya mai sauƙi da madaidaicin samarwa. Duk da haka, saboda da tsarin halaye na high porosity naaluminum kumfa, kawar da ƙazanta a cikin ramukan da ke saman kumfa na aluminum yana da nauyi; a cikin wannan hanyar haɗin kai, panel da core Layer sun fi mannewa a madaidaicin buɗaɗɗen, kuma ainihin wurin haɗin kai mai tasiri yana da ƙananan, wanda ya haifar da ƙananan ƙarfin haɗin gwiwa na tsarin sanwici; manne yana kasawa a yanayin zafi mai zafi ko kuma a cikin yanayi mai ƙarfi mai lalacewa, wanda ke haifar da rabuwa da babban Layer daga panel da lalata tsarin.

2. Haɗin walda

Hanyoyin walda don shiri na kumfa aluminum sanwici bangarori sun hada da Laser katako walda, ultrasonic torsion waldi, da brazing sadarwa. Laser katako waldi ne da yin amfani da wani Laser ta high thermal makamashi zuwa panel kayan da kuma kumfa aluminum surface Layer narkewa, sanyaya bayan da biyu composite tare, tabo waldi matsayi, da waldi jerin nuna a cikin Figure 1. Laser katako waldi ne sosai m da kuma iya yadda ya kamata. sarrafa yankin haɗin gwiwa narke. Ko da yake wannan hanya na iya aiwatar da ci gaba da aiki, ingancin ya yi ƙasa, kuma ƙarfin haɗin samfurin kuma yana da ƙasa. Ka'idar ultrasonic torsion waldi shine haɗuwa da kayan biyu tare da makamashin ultrasonic. Duk da haka, wannan hanyar tana buƙatar wani yanki na walda, kuma ba zai yiwu a kammala walda na duk abubuwan da aka yi niyya ba, wanda ke iyakance amfani da wannan hanyar a ainihin samarwa. Haɗin brazing za a hana shi ta hanyar oxidized Layer na kumfa aluminum, don haka yana da mahimmanci don cire Layer oxidized, kuma lokacin amfani da fasahar brazing ba tare da jujjuyawar brazing a ciki ba.kumfa aluminumsandwich panels, wasu matakan hana lalata ya kamata a yi la'akari da su don hana tushen zinc da sauran kayan haɗi daga haɗuwa tare da lalata aluminum. Bugu da ƙari, sassan da aka haɗa ta wannan hanyar kawai suna da ramukan ramuka, don haka za a rage ƙarfin haɗin gwiwa.

3. Hanyar fesa thermal surface

Tsarin sutura gabaɗaya yana buƙatar babban matakin lebur a saman ɓangaren, don haka hanyar ba ta dace da ƙarin sifofi masu rikitarwa ba. Fushin zafi yana cikin fasahar saman ƙasa, wanda ake samun ta ta hanyar narkewar wayoyi ko foda. Wannan hanyar tana amfani da jet na iska don haɓaka kayan da aka narke da kuma tura shi zuwa saman ɓangaren da za a shafa, yana ba da damar sarrafa abubuwan da aka haɗa tare da sifofi masu rikitarwa. A wannan hanya, tushen zafi gabaɗaya baka ne na lantarki. Duk da haka, wannan hanya yana da wuyar samun masana'antu saboda sarkar tsarin.

4. Hot matsi - foda metallurgy kumfa hanya

Ta wannan hanyar, da farko za a fara sanya foda na core Layer da ake amfani da shi don yin kumfa, sannan a sanya su a cikin injin tare, sannan a yi amfani da latsa na'ura mai aiki da karfin ruwa don shafa musu matsa lamba mai sanyi, bayan haka sai a riƙe blanks a 450 ℃. kamar sa'o'i 1 sannan a danna zafi don samun guraben da aka riga aka kera waɗanda za'a iya sarrafa su don yin kumfa. Sa'an nan preform yana mai zafi da kumfa a cikin rufaffiyar mold, kuma ana samun sanwici panel bayan sanyaya. Kasancewar mold a cikin wannan hanya zai sami wasu iyakancewa akan girman ƙãre ƙãre aluminum kumfa sandwich panel.

5. Hanyar yin kumfa-mai rufi

Wannan hanya ita ce foda na asali don yin kumfa ta amfani da ma'anar mirgina mai dacewa don yin kayan mahimmanci, bayan panel da kayan da aka riga aka tsara don mirgina, shafi, don samun ɓangarorin da aka riga aka yi, kumfa bayan sanyaya don samun kyakkyawan tsari na sanwici. panel. Wannan hanyar shirye-shiryen samfurori tare da ƙarfin haɗin gwiwa na iya gane ci gaba da samarwa amma yana buƙatar shawo kan matsalolin fasaha guda biyu: ɗaya shine buƙatar densify da foda, kuma na biyu shine ingantaccen haɗin haɗin kayan aiki da mirgina panel.