UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Greensand Casting Sand
Green sand is moulding sand that is used damp: fine silica sand bound by a little clay and water, so it packs firm round a pattern, holds a sharp shape, and lets steam escape when hot metal is poured. 'Green' means unbaked, not the colour. Bentonite clay is the usual binder; the mix is tempered with water until a squeezed handful holds its shape and breaks cleanly.
Oqalayo
1 hour
Imiyalelo
1
1
Sieve the sand
Sieve the sand
With a dust mask on, sieve dry fine quartz sand to remove stones and lumps.
Izinto zokwakha zalesi sinyathelo:
Isihlabathi Se-quartz20 kgAmathuluzi adingekayo:
Isisefo Senetha Ecolekile
Imaski Yothuli2
2
Add the clay
Add the clay
Weigh in bentonite at about a tenth of the sand's weight and mix it through dry in the trough until the colour is even.
Izinto zokwakha zalesi sinyathelo:
Ubumba be-bentonite2 kgAmathuluzi adingekayo:
Isikali
Umgqomo wokuxubaImaski Yothuli3
3
Temper with water
Temper with water
Mist water over it a little at a time, rubbing the sand between your hands and through the sieve to spread the clay and water evenly.
Izinto zokwakha zalesi sinyathelo:
Amanzi1 ilithaAmathuluzi adingekayo:
Ibhodlela lokufafaza amanziIsisefo Senetha Ecolekile4
4
Squeeze test
Squeeze test
Squeeze a handful. It should hold the print of your fingers and break cleanly in two when bent, not crumble or stick to your hand. Add sand if sticky, water if crumbly.
5
5
Store damp
Store damp
Keep it covered in a lidded bucket so it stays damp; re-temper before each use.
Amathuluzi adingekayo:
Ibhakede lensimbi elinesivaloIzinto
3- Isibambeli
- Isibambeli
- 1 ilithaIsibambeli
Amathuluzi Adingekayo
6- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
Le blueprint yenza
CC0 Isizinda Somphakathi
Le blueprint ikhishwe ngaphansi kwe-CC0. Ukhululekile ukukopisha, ukuguqula, ukusabalalisa, nokusebenzisa ngaphandle kwemvume.
Sekela uMenzi ngokuthenga imikhiqizo nge-Blueprint yabo IKhomishane Yomenzi kumiswe ngabathengisi, noma dala inguqulo entsha yale Blueprint bese uyifaka njengoxhumaniso ku-Blueprint yakho ukuze wabelane ngemali engenayo.