Unlock instant, AI-driven research and patent intelligence for your innovation.

Powder molding method

A molding method and powder technology, which is applied in the direction of material molding presses, electrical components, presses, etc., can solve the problems of not being able to improve the orientation of powder raw materials, and not considering the orientation of powder raw materials for molding models.

Inactive Publication Date: 2004-03-24
HITACHI METALS LTD
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art described above, there is no consideration of orienting the powder raw material filled in the molding mold, so the orientation of the powder raw material and the resulting molded product cannot be improved.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Powder molding method
  • Powder molding method
  • Powder molding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0028] Referring to FIG. 1 , it can be seen that a powder molding device 10 according to an embodiment of the present invention is a magnet powder molding device in which the pressing direction is perpendicular to the orientation direction of the magnetic field and is a withdrawal system.

[0029] The powder forming apparatus 10 includes a base 12 . Base 12 is supported by a plurality of feet 14 . A mold 16 is arranged above the base 12 . The lower side of the mold 16 is connected to the connecting plate 20 through a pair of guide pillars 18 passing through the base 12 . The connecting plate 20 is connected with the lower hydraulic cylinder not shown in the figure through the hydraulic cylinder piston rod 22 . Therefore, the mold 16 can be moved in the vertical direction by the lower hydraulic cylinder.

[0030] At approximately the center of the mold 16, a through ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

A powder molding method capable of increasing the orientationality of a molded body (39), comprising the steps of filling powder for magnet manufactured by a quenching method into a cavity (28) formed in a through-hole (24) of a die (16), and applying an orienting magnetostatic field to the powder inside the cavity (28) by a magnetic field generating device (40) while vibrating a lower punch (26) in the through-hole (24) in pressing direction by a vibrating device (30) to pressingly mold the powder inside the cavity (28) by an upper punch (34) and the lower punch (26) so as to provide the molded body (39), the pressing direction being vertical to the magnetic field orienting direction, or being allowed to be parallel with the magnetic field orienting direction.

Description

technical field [0001] The present invention relates to a powder molding method, and more particularly, to a powder molding method for compacting rare earth magnet powder. Background technique [0002] An example of such prior art is disclosed in Japanese Patent Application Laid-Open No. Sho 61-2508. Here, there is proposed a vibration press molding machine that supports a molding table in a freely vibrating manner while supporting a press plate in a freely movable manner. In this vibrating press molding machine, vibrators are arranged to support the side of the forming table and the side of the pressing plate, and at the same time, pressurized hydraulic cylinders that can be freely raised and lowered are also arranged on the side of the pressing plate and the side of the forming table. . [0003] However, in the prior art described above, there is no technique for orienting the powder raw material filled in the molding mold, and therefore, the orientation of the powder ra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/02B30B11/02H01F41/02
CPCB22F2999/00B30B11/022B22F3/02H01F41/0273
Inventor 小川笃史奥村修平
Owner HITACHI METALS LTD