Casting
Casting and Carbon Additives: FAQ
Why add carbon to green sand? To create lustrous carbon and a reducing atmosphere that improves surface finish.…
Aditiv s visokim udjelom sjajnog ugljika za sirovu kalupnu mješavinu; zamjena za ugljenu prašinu.
Ključne prednosti
- Visok prinos sjajnog ugljika
- Glađe površine odljevaka
- Manja doza od ugljene prašine
- Nizak pepeo i manje sitnih čestica
Opis proizvoda
Ljevački gilsonit pri lijevanju oslobađa hlapljive ugljikovodike koji stvaraju film sjajnog ugljika na granici kalup–metal. Odljevci su glađi, istresanje čišće, a potrošnja aditiva manja nego s tradicionalnom ugljenom prašinom.
Primjena
- Odljevci od sivog i nodularnog lijeva
- Mješavine bentonit–ugljik
- Modelna mješavina
- Odljevci od obojenih metala
Tehnički podaci
Tehnički list
Gilsonit za ljevaonice
| Svojstvo | Tipična vrijednost | Metoda ispitivanja |
|---|---|---|
| Izgled | Crni prah | Vizualno |
| Veličina čestica | 100 – 300 mesha | Sito |
| Hlapljive tvari | 55 – 75 % | ASTM D3175 |
| Sadržaj pepela, maks. | 5 % | ASTM D3174 |
| Vlaga, maks. | 1 % | ASTM D95 |
| Točka razmekšanja (PK) | 150 – 200 °C | ASTM D36 |
| Tipična doza | 0,3 – 1,0 % (lijevano željezo) | |
| Pakiranje | Paletizirane vreće 25 kg; big bag vreće 1 t za postrojenja za miješanje. | |
Tipične vrijednosti. Konačna specifikacija potvrđuje se u certifikatu analize svake pošiljke.
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