Abstract: A hopper and method for transferring raw material, which can prevent segregation due to the impact caused by falling of the raw material powder when different types of raw material powders are transferred. The hopper for a raw material powder according to one embodiment of the present disclosure includes: a hopper body having an inner space in which the raw material powder is stored and including an outlet which is formed through the lower end thereof and through which the raw material powder is discharged; a transfer pipe to which the raw material powder discharged through the outlet is transferred and which has a region, through which the raw material powder is transferred, divided into a plurality of regions; and a slide gate unit disposed between the outlet and the transfer pipe to open or close the transfer pipe while adjusting a degree of opening of the transfer pipe.

Abstract: The present disclosure relates to an iron-based mixed powder having excellent uniformity, fluidity and moldability by applying polyamide as a binder, and a method for manufacturing the same. The iron-based mixed powder according to an embodiment of the present disclosure is composed of a mixture of a raw material of mixed powder in which iron-based powder and additive powder are mixed, and polyamide as a binder, wherein 0.03 to 1.50 parts by weight of the binder is mixed based on 100 parts by weight of the raw material of the mixed powder.

Abstract: A hopper and method for transferring raw material, which can prevent segregation due to the impact caused by falling of the raw material powder when different types of raw material powders are transferred. The hopper for a raw material powder according to one embodiment of the present disclosure includes: a hopper body having an inner space in which the raw material powder is stored and including an outlet which is formed through the lower end thereof and through which the raw material powder is discharged; a transfer pipe to which the raw material powder discharged through the outlet is transferred and which has a region, through which the raw material powder is transferred, divided into a plurality of regions; and a slide gate unit disposed between the outlet and the transfer pipe to open or close the transfer pipe while adjusting a degree of opening of the transfer pipe.