Ukusebenzisana
UBUCIKO
UBUHLE NEMPILO
UBUCIKO BEZANDLA
AMASIKO NOMLANDO
EZOKUZIJABULISA
IMVELO
UKUDLA NEZIPHUZO
REVERSE ENGINEERING
IZAYENSI
EZEMIDLALO
UBUCHWEPHESHE
IZINTO EZIGQOKWAYO
Refractory Cement: Manganese and Zinc White in Soluble Glass (Spon's Workshop Receipts)
Spon's second fireproof and waterproof cement: equal parts of sifted peroxide of manganese and finely ground zinc white, made into a thin paste with commercial soluble glass and used at once.
Spon rates it as hard and heat-resistant as the clay and iron-filings cement.
Source: Spon, Workshop Receipts, first series, p. 24. Picture: the recipe.
Oqalayo
Unknown
Imiyalelo
1
1
Prepare the powders
Prepare the powders
Sift peroxide of manganese and pulverize zinc white well. Mix equal parts of the two.
Izinto zokwakha zalesi sinyathelo:
I-manganese dioxide (i-pyrolusite)1 1 part, sifted
Impuphu Ye-Zinc Oxide1 1 part, well pulverizedAmathuluzi adingekayo:
Isethi yezisefo (izimbobo ezilandelanayo)
Isigqulo Nomgqulo2
2
Make the paste and use it at once
Make the paste and use it at once
Add enough commercial soluble glass to make a thin paste. Use it immediately.
Izinto zokwakha zalesi sinyathelo:
Ingilazi yamanzi (isisombululo se-sodium silicate)1 enough for a thin pasteAmathuluzi adingekayo:
Isigqulo NomgquloIzinto
3- 1 1 part, siftedIsibambeli
- 1 1 part, well pulverizedIsibambeli
- 1 enough for a thin pasteIsibambeli
Amathuluzi Adingekayo
2- Isibambeli
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