Lavorazione Campane

Gennaio 13, 2018 Written by

MARINELLI

Le fasi di lavorazione che portano alla nascita della campana richiedono un lavoro attento e paziente ma principalmente esperienza e passione.

Oggi nella fonderia Marinelli si usano le stesse tecniche ed i materiali dei maestri del Medioevo e del Rinascimento. La tecnologia non ha accelerato il ciclo di lavorazione che può variare da due a molti mesi. Nel 1700 la campana aveva finalmente assunto una forma ben definita, molto simile a quella odierna, tuttavia persisteva spesso la sproporzione fra diametro ed altezza percui continuava a conservare un aspetto affusolato. In seguito fu definita una scala campanaria che indicava proporzioni perfette tra spessore, peso, circonferenza ed altezza, rapportati al timbro sonoro richiesto. La campana può essere considerata un tronco di cono inserito in un cubo; il suo profilo viene disegnato dal compasso non essendovi linee diritte, come riporta anche Diderot nell’ ” Encyclopedie” e questo determina la buona riuscita della campana e del suono.

Preparazione del Modello

Sagoma in legno per campanaSi parte dalla preparazione di una sagoma in legno di noce che corrisponde al profilo della campana. Con essa si disegna una struttura cava di mattoni corrispondente all’interno della campana, L’ANIMA, sulla quale viene distribuito un primo strato di argilla. Sull’anima si sovrappongono alcuni strati di speciali argille fino ad ottenere la FALSA CAMPANA che avrà esattamente lo spessore voluto per la campana di bronzo. Su questa superficie, perfettamente levigata, si applicano fregi ed iscrizioni in cera che dedicano e decorano la campana.

L’ultima fase di formatura consiste nel preparare il MANTELLO ottenuto dalla sovrapposizione di strati di argilla. A modello ultimato viene sollevato il mantello per scoprire la falsa campana che verrà distrutta, il mantello sarà riposizionato sull’anima cosicchè all’interno del modello si sarà creata l’intercapedine nella quale verrà colato il bronzo.

A questo punto Il Modello è pronto per essere collocato nel fosso di colata, ai piedi del forno, per essere interrato. Il modello della campana è bloccato saldamente nella fossa di colata al fine di non subire spostamenti durante la fusione. Il bronzo (78 parti di rame e 22 di stagno) fonde in un grande forno a riverbero, alimentato a legna, alla temperatura di circa 1150°.

Read 16228026 times Last modified on Sabato, 13 Gennaio 2018 16:36
More in this category: « Lavorazione Campane

1050220 comments

  • Comment Link uzuzgucakuxe Marzo 01, 2025 posted by uzuzgucakuxe

    Research indicates that regulating cholesterol is essential for heart health. Visit [URL=https://classybodyart.com/nizagara/]nizagara dosage canada[/URL] to find out about innovative solutions.

    Get incredible savings on amoxicillin 250mg when you purchase through our portal.

    Discover how to acquire remedies for enhancing your vitality safely; https://littlestabstudios.com/drugs/prices-for-viagra/ is your gateway to satisfaction.

    Zealously search for options to boost your well-being? Examine [URL=https://littlestabstudios.com/drugs/prices-for-viagra/]prices for viagra[/URL] as a effective solution.

  • Comment Link how to apply tourist visa for usa from hong kong Marzo 01, 2025 posted by how to apply tourist visa for usa from hong kong

    Undeniably believe that which you stated. Your favorite reason seemed to
    be on the net the easiest thing to be aware of. I say to you, I certainly get annoyed while people
    consider worries that they just don't know about. You managed to hit the nail upon the top and also
    defined out the whole thing without having side effect , people
    can take a signal. Will probably be back to get more.
    Thanks

  • Comment Link ldhmayb Marzo 01, 2025 posted by ldhmayb

    buy discount several elocon secret buy 3 day ambien discount requip no rx b sulfate price compazine imuran drug without prescription iowa aciclovir 400mg zovirax home delivery eurax online cod accepted georgia price bentyl tabs purchase medicine low price indocin legally ach cymbalta mdi price duloxetine 20mg discount real slimex voveran-emugel price 92663 santa ana

  • Comment Link aluhameritis Marzo 01, 2025 posted by aluhameritis

    Zero hassle to acquire your medication: just visit [URL=https://yourdirectpt.com/pill/prednisone/]buy prednisone online cheap[/URL] for numerous medical solutions!

    Browsing for an affordable way to manage your symptoms? Discover unparalleled prices and convenience by choosing to order your medications via the web with buy prednisone without prescription .

    Just seeking alleviation from ongoing heartburn? Discover https://yourdirectpt.com/pill/prednisone/ for treatments that could assist.

  • Comment Link Carita Brasfield Marzo 01, 2025 posted by Carita Brasfield

    https://mcp-bet-id.com/pgsoftbetns/

  • Comment Link erdgonoois Marzo 01, 2025 posted by erdgonoois

    Discover affordable options to maintain your bone health; [URL=https://leadsforweed.com/online-generic-propecia/]propecia[/URL] and explore other budget-friendly solutions online.

    Navigating the complex world of medication, finding a secure source for propecia becomes paramount for those seeking alternative solutions.

    Zero in on affordability and convenience with https://castleffrench.com/cialis-10mg/ , your go-to source for acquiring potent ED treatments virtually.

    Combat digestive discomfort effectively with our herbal remedy. Order your solution online at [URL=https://castleffrench.com/priligy/]buy priligy[/URL] .

  • Comment Link ixgarocu Marzo 01, 2025 posted by ixgarocu

    Looking for an all-natural way to enhance your vitality? Discover [URL=https://leadsforweed.com/item/lowest-price-on-generic-retin-a/]buying retin a online[/URL] and explore how our product can boost your well-being.

    Given the vast array of options for enhancing your wellness, buy cialis uk online discount stands out as a leading choice. Whether you're seeking to improve performance or tackle specific health concerns, this alternative can be a significant game-changer.

    You can obtain your https://castleffrench.com/tadalafil-5mg/ online, ensuring confidentiality and ease.

    Visit our website to locate the [URL=https://castleffrench.com/levitra/]levitra prices[/URL] . Our platform offers a convenient way to obtain your prescription online.

  • Comment Link ujorepeguneb Marzo 01, 2025 posted by ujorepeguneb

    When considering treatments for prostate cancer management, consulting with a healthcare professional is crucial. However, for those who are currently aware and looking to acquire their medications conveniently, [URL=https://bhtla.com/drug/hydroxychloroquine/]generic hydroxychloroquine express[/URL] offers a practical option.

    Manage your arrhythmia efficiently with nizagara , the optimal solution. Order this medication on our site to ensure your heart's health.

    Discover affordable relief for joint pain and inflammation. Now you can purchase https://classybodyart.com/item/prednisone-without-pres/ . This effective treatment offers a solution for managing discomfort with ease.

  • Comment Link あはれなり Marzo 01, 2025 posted by あはれなり

    Radio took off in 1921 when the station KDKA in Pittsburgh began broadcasting boxing (Johnny Dundee versus Johnny Ray), adopted soon by baseball (the Pirates versus the Phillies) and, not much later, college soccer (the University of Pittsburgh versus West Virginia).

  • Comment Link iruilaayiwiqu Marzo 01, 2025 posted by iruilaayiwiqu

    X-ray your options and discover the best deals on hypertension treatment when you buy [URL=https://leadsforweed.com/generic-tretinoin/]precio del tretinoin[/URL] on the internet.

    Zap your health woes away! Discover affordable remedies with prednisone price walmart . Embrace an improved life today.

    Harness the power to boost your vitality by choosing to buy https://fairbusinessgoodwillappraisal.com/item/trazodone/ .

Leave a comment

Make sure you enter all the required information, indicated by an asterisk (*). HTML code is not allowed.