POWDER MOLDING DEVICE

摘要

PURPOSE:To simplify the construction of a titled device and to improve the quality of a product by packing powder into a die provided with a large diameter part at the top edge on the inside circumference then compressing the powder after rising once the die. CONSTITUTION:The large diameter part 6 is formed to the top edge of the inside periphery of the die 1 or an adapter 5 is placed on the die 1 and the part 6 is formed thereto. After the die 1 is set to a lower punch 2, the powder is packed into the die 1 and the die 1 is once raised. The powder existing in the large diameter part 6 flows down into the hole of the die 1. An upper punch is thereafter lowered to mold compressively the powder. The density in said part is increased by as much as the larger compression ratio by the above-mentioned method. There is no need for dividing the lower punch to two pieces and the device is simplified. The increase in the density of the required part and the uniformity of the density are made possible and therefore the quality of the product is improved.