All gold is fusible or not, means that some is fusible at the time.
To be of value a fusible plug should be renewed or changed once a month.
Vitrification or densification is due to the feldspar or fusible sand.
fusible metal may be allowed to cool in a teacup until just ready to set at the edges, and then poured into the moulds.
Each furnace had been fitted with a fusible plug, but they proved inefficient.
The fusible material is some alloy melting at a low temperature.
All these form a most fusible mixture, and the silica present is only in such proportion as is necessary for vitrification.
The calculus, composed of a mixture of the phosphate of lime, and triple phosphate of magnesia-and-ammonia, or fusible calculus.
The matrices thus obtained were in like manner impressed on a fusible metal, which melted at a lower temperature than the lead.
Most commonly it is composed of a lithic acid or mulberry nucleus, and an external crust of the fusible calculus.