Glossary of Refractories and Refractory related terms starting with alphabet - N

Refractories and Refractory Technology

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]

Needle or Plunger

The vertical part of a feeder which alternatively forces the glass through the orifice and pulls it up after shearing.

Neutral refractories

Refractories that is resistant to chemical attack by both acid and basic slags, refractories and fluxes even at high temperatures.   

Nose or Mouth

Upper opening of a converter through the gases escape, charging is done and deslagging and pouring are effected.  

Nozzle

A hollow refractory of circular / pipe shape containing an orifice through which molten materials or hot gases are transmitted.

Click below for Refractory Terms (Refractories | Definitions) starting with alphabet -

A B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z