Method and apparatus for producing a test piece of molding compound useful in measuring properties thereof

Claim 3

A method according to claim 1 wherein during said compaction of said volume at a certain pressure exerted by said compaction means, the compactability is measured with reference to the decrease in volume of said compound.

Claim 4

A method according to claim 1 wherein in addition to measuring the pressure on said opposite surface, there is also measured the pressure on the surface against which said compaction means is applied with a test signal being produced from said two measured pressures.

Claim 5

A method according to claim 1 wherein the gas permeability of the test piece thus compacted is measured.

Claim 6

A method according to claim 1 wherein filling of said cavity with said measured volume of said molding compound is performed automatically by apportioning means, wherein during said filling the temperature is automatically measured, wherein the test cycle, the removal of the molding compound test piece from the cavity and cleaning thereof are performed automatically.

Claim 7

A method according to claim 5 wherein measured values are automatically recorded and are transformed into control or regulating signals.

Claim 8

A method according to claim 6 wherein there are generated signals for automatically controlling or regulating the apportioning of mixture components that are necessary for preparing said molding compound.

Claim 9

A method according to claim 6 wherein said signals are utilized for correcting the control signals which in the region of molding compound preparation are supplied by other measuring devices.

Claim 10

A method according to claim 7 wherein said signals are utilized for recording the quantity of apportioned mixing components.

Claim 11

Apparatus for producing a test piece of molding compound useful for measurement of the properties of said compound by compressing said compound to a specified pressure at a particular volume comprising means defining a cavity having a certain geometry within which a specific measured volume of said molding compound may be provided, compaction means for applying a compaction pressure to said compound from one side of said cavity, sensing means for measuring the pressure on said compound on a side of said cavity opposite said one side, means for measuring the distance moved by said compaction means, said sensing means being located to measure the pressure applied by said compaction means directly at the surface of said molding compound on a side of said cavity opposite said one side.

Claim 12

Apparatus for producing a test piece of molding compound useful for measurement of the properties of said compound by compressing said compound to a specified pressure at a particular volume comprising means defining a cavity having a certain geometry within which a specific measured volume of said molding compound may be provided, compaction means for applying a compaction pressure to said compound from one side of said cavity, sensing means for measuring the pressure on said compound on a side of said cavity opposite said one side, means for measuring the distance moved by said compaction means, said sensing means being located to measure the pressure applied by said compaction means directly at the surface of said molding compound on a side of said cavity opposite said one side.

Claim 13

Apparatus according to claim 10, further comprising additional pressure measuring means arranged to measure the pressure on said molding compound at said one side of said cavity where said compaction means is applied.