Ultra high temperature viscometer eo - cod. produto nv2560

Ultra high temperature viscometer eo - cod. produto nv2560; ; ; we have designed and built a viscometer to measure the viscosity of liquid metals, for instance aluminium or die-casting alloys, up to 800 c. this is now offered for general use with details to be agreed for your particular research requirement. for instance: this instrument has been provided with stainless steel rotors and stators which are pre-oxidised to prevent adhesion of the liquid metal. however we could use any material you wish to specify, for instance graphite is excellent under these conditions, though the operating protocol would have to ensure that the normal gas (argon) blanket was maintained as necessary. the rotor and stator are grooved longitudinally asthis was required by the original customer. this grooving can be omitted or made to your own requirements. the rotor can be raised out of the heating chamber by raising the measurement head. the stator is lowered from the bottom of the heating chamber which remains fixed in the centre of the mounting pillar. heating is by radiation from a surounding vertically mounted muffle. structural cooling, where necessary, is by circulated water, of which a flow of about 1 litre per minute is sufficient. the gas blanket is split into two parts, a constantly flowing blanket sufficient to prevent oxidation (samples of molten aluminium have been maintained bright over a period of two hours or more) and a much heavier flow which is passed through channels provided in the structure of the steel in order to cool the samples at a high rate on demand.;