Metoda ztraceného vosku
Metoda ztraceného vosku (nebo ztracené formy) je metoda odlévání. Jmenuje se tak, protože se po odlití forma zničí. Opak je odlévání do pevné formy.
Postup
- Z tvrdého vosku se vyrobí trojrozměrný pozitiv odlévaného předmětu.
- Pozitiv se pak nastříká tenkou cementační vrstvou a poté několikrát namáčí ve speciální keramice a nechá se zaschnout, dokud nevznikne masivní forma.
- Potom se nechá vosk roztát a vylije se z formy. Nevadí když něco zůstane uvnitř.
- Potom se forma pomalu nažhaví na tavnou teplotu. Někdy v téže peci jako tavenina. Zbytky vosku se jednoduše vypaří.
- Potom se do formy nalije tavenina.
- Tavenina (odlitek) se nechá ztuhnout.
- Když je odlitek ztuhlý, forma se rozbije a práce je hotová.
(c) José-Manuel Benito Álvarez, CC BY-SA 2.51.
(c) José-Manuel Benito Álvarez, CC BY-SA 2.52.
(c) José-Manuel Benito Álvarez, CC BY-SA 2.53.
(c) José-Manuel Benito Álvarez, CC BY-SA 2.54.
(c) José-Manuel Benito Álvarez, CC BY-SA 2.55.
Použití
- Kde je třeba masovost a vysokou přesnost (až IT8) s minimálním nebo nulovým dopracováním.
- Výroba ručních zbraní
Reference
V tomto článku byl použit překlad textu z článku Metóda strateného vosku na slovenské Wikipedii.
Související články
Externí odkazy
Obrázky, zvuky či videa k tématu Metoda ztraceného vosku na Wikimedia Commons
Média použitá na této stránce
Lost Wax-Model of apple in wax.jpg
(c) José-Manuel Benito Álvarez, CC BY-SA 2.5
Lost Wax Casting: original artwork of an apple from wax. Step 1 of the lost-wax bronze casting process
(c) José-Manuel Benito Álvarez, CC BY-SA 2.5
Lost Wax Casting: original artwork of an apple from wax. Step 1 of the lost-wax bronze casting process
Lost Wax-Apple in bronze.jpg
(c) José-Manuel Benito Álvarez, CC BY-SA 2.5
Lost Wax Casting: The sculpture of the apple, just extracted of its mold. Below is the funnel through wich the bronze was poured (upside down). Step 5 of the lost-wax bronze casting process
(c) José-Manuel Benito Álvarez, CC BY-SA 2.5
Lost Wax Casting: The sculpture of the apple, just extracted of its mold. Below is the funnel through wich the bronze was poured (upside down). Step 5 of the lost-wax bronze casting process
Lost Wax-Moldmaking of an apple.jpg
(c) José-Manuel Benito Álvarez, CC BY-SA 2.5
Lost Wax Casting: The hollow paraffin cast is "sprued" with a treelike structure of wax and covered in a fireproof mold of clay. The core is also filled, as seen by the hole on the right hand side. The stainless steel wires sticking out are core supports, intended to maintain the distance between core and shell once the wax has been melted out. Step 4 of the lost-wax bronze casting process
(c) José-Manuel Benito Álvarez, CC BY-SA 2.5
Lost Wax Casting: The hollow paraffin cast is "sprued" with a treelike structure of wax and covered in a fireproof mold of clay. The core is also filled, as seen by the hole on the right hand side. The stainless steel wires sticking out are core supports, intended to maintain the distance between core and shell once the wax has been melted out. Step 4 of the lost-wax bronze casting process
Lost Wax-Model of apple in plaster.jpg
(c) José-Manuel Benito Álvarez, CC BY-SA 2.5
Lost Wax Casting: A rubber mold of the original wax model of an apple and its cast, in this case from plaster. Step 2 of the lost-wax bronze casting process
(c) José-Manuel Benito Álvarez, CC BY-SA 2.5
Lost Wax Casting: A rubber mold of the original wax model of an apple and its cast, in this case from plaster. Step 2 of the lost-wax bronze casting process
Lost Wax-Model of apple in paraffine.jpg
(c) José-Manuel Benito Álvarez, CC BY-SA 2.5
Lost Wax Casting: original artwork of an apple from paraffine. A hollow cast in paraffine, step 3 of the lost-wax bronze casting process
(c) José-Manuel Benito Álvarez, CC BY-SA 2.5
Lost Wax Casting: original artwork of an apple from paraffine. A hollow cast in paraffine, step 3 of the lost-wax bronze casting process