Check patentability & draft patents in minutes with Patsnap Eureka AI!

A filling shoe and method for powder filling and compaction

A technology of feeding and powdering, which is applied in the field of feeding shoe devices, can solve problems such as complex design, achieve uniform density, uniform powder density, and reduce weight changes

Inactive Publication Date: 2009-12-02
HOGANAS AB
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this design is complex and requires the supply of pressurized air at two different air pressures

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
  • A filling shoe and method for powder filling and compaction
  • A filling shoe and method for powder filling and compaction
  • A filling shoe and method for powder filling and compaction

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0059] Preparation of iron-based powder compositions based on pure iron powder ASC100.29, available from Swedish Obtained by AB Company, the iron-based powder composition also includes 2.0% 100-mesh copper powder, 0.8% graphite UF4, 0.8% amine wax, and ethylene bis-stearamide (ethylenebis-stearamide).

[0060] The powder composition is sent to a container located above the pressing equipment. A tube extends from the container down to the feed shoe. The feed shoe had a width of 8.5 cm, a length of 8.5 cm, a height of 2.5 cm at the front end and a height of 5 cm at the rear end. The bottom of the feed shoe is open. When the feed shoe is moved to a position above the cavity, it will be filled with powder. After the cavity is filled, the feed shoe is evacuated and pressing can then begin.

[0061] 200 rings with a height of 13 mm, an inner diameter of 19 mm and an outer diameter of 25 mm were punched out with a pressure of 600 MPa. The nominal weight is about 19 grams. The ...

example 2

[0067] The same experimental setup as in Example 1 was used. Preparation of bonded powder compositions based on pure iron powder ASC100.29, available from Swedish Obtained by AB Company, the bonding powder composition also includes 2.0% 100 mesh copper powder, 0.8% graphite UF4, 0.8% amine wax and 0.05% tall-oil-ester-based binder (tall-oil-ester-based binding agent).

[0068] Table 2 Tests according to Example 2

[0069] Mesh size

[0070] It can be seen from Table 2 that at the same punching speed (11.5 strokes / min), the weight dispersion is significantly smaller when the mesh is provided in the feed shoe than when no mesh is used. It can also be seen that even when the stamping speed is increased to 14 or 16 strokes / minute, the weight dispersion with the mesh is still significantly smaller than the reference test (11.5 strokes / minute) without the mesh.

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
Widthaaaaaaaaaa
Lengthaaaaaaaaaa
Heightaaaaaaaaaa
Login to View More

Abstract

Disclosed is a filling shoe device for passing and dispensing powder into a cavity of a powder compaction apparatus for subsequent compacting of the powder, the filling shoe device comprising a filling shoe, the filling shoe comprises an inlet portion for receiving powder into said filling shoe, an outlet portion forming a powder outlet flow channel having an outlet opening for dispensing powder out of said filling shoe into the cavity in said powder compaction apparatus, a meshwork arranged in the powder flow channel across the outlet opening, and wherein the meshwork is non-movably arranged in the outlet portion and wherein the outlet portion is non-movable relative to the filling shoe device.

Description

technical field [0001] The present invention relates to feed shoe arrangements for use in powder compaction plants. The feed shoe comprises an inlet portion for receiving powder into said feed shoe and an outlet portion forming a powder outflow channel having a function for distributing powder exiting said feed shoe into said feed shoe. Exit holes in the cavity of powder compaction equipment. [0002] The invention also relates to a method for filling and compacting powder in a cavity of a powder compacting device. Background technique [0003] In conventional powder compaction equipment, powder is fed from a powder source to a feed shoe, and from there into a compaction cavity of a compaction mold. When pressing is to be performed, the feed shoe is moved away from the opening of the press chamber by moving the feed shoe, and then the punch is forced to forcefully punch the powder in the press chamber. [0004] It has been found that in many cases the density and properti...

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
IPC IPC(8): B30B15/30B22F3/00
Inventor M·达尔贝里N·索利曼杰德
Owner HOGANAS AB
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com