Method for producing compressed body of powder
AssigneeMeiji Co., Ltd.
InventorsKeigo Hanyu, Tetsu Kamiya
Life of this patent
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Abstract
Provided is a method for producing a compressed body of a powder capable of improving a hardness while suppressing a decrease in production efficiency of the compressed body of the powder. A compressed body 14 of a powder is compression molded by compressing a powder supplied into die holes 18 by a lower punch 31 and an upper punch 32. In the compression molding, a first compression and a second compression following the first compression are performed. In the first compression, the compression is performed at a first compression speed, and in the second compression, the compression is performed at a second compression speed that is lower than the first compression speed.
Claims3
A method for producing a compressed body of a powdered milk having a solid form obtained by compression molding the powdered milk, the method comprising:
- a first compression step of compressing the powdered milk at a first compression speed V1;
- and
- a second compression step of compressing the compressed body of the powdered milk compressed in the first compression step at a second compression speed V2 that is lower than the first compression speed until the compressed body of the powdered milk has a final thickness L in a predetermined compression state corresponding to a target thickness of the compressed body of the powdered milk from a state of being compressed in the first compression step,
- wherein a compression speed ratio V1/V2 is 5 or more;
- and
- the second compression step is performed following the first compression step without releasing a compression.
A method for producing a compressed body of a powdered milk having a solid form obtained by compression molding the powdered milk, the method comprising:
- a first compression step of compressing the powdered milk at a first compression speed V1;
- and
- a second compression step of compressing the compressed body of the powdered milk compressed in the first compression step at a second compression speed V2 that is lower than the first compression speed until the compressed body of the powdered milk has a final thickness L in a predetermined compression state corresponding to a target thickness of the compressed body of the powdered milk from a state of L2+L being compressed in the first compression step,
- wherein in the second compression step, a combination of a compression distance L2 from the state L2+L of being compressed in the first compression step to the final thickness L and the second compression speed V2 is set so that the compressed body of the powdered milk is compressed to a hardness specific point at which a rate of change in a hardness of a compressed body relative to change in the compression distance L2 decreases.
Dependencies are inferred from the claim text.