Difference between revisions of "Powder Presses"
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[[File:Powder Presses_1.jpg|thumb|200px|right|Powder Presses]] | |||
'''Powder Presses''' is the process of blending fine powdered materials, pressing them into a desired shape or form (compacting), and then heating the compressed material in a controlled atmosphere to bond the material (sintering). The powder metallurgy process generally consists of four basic steps: | |||
(1) powder manufacture, | |||
(2) powder blending, | |||
(3) compacting, | |||
(4) sintering. | |||
Compacting is generally performed at room temperature, and the elevated-temperature process of sintering is usually conducted at atmospheric pressure. Optional secondary processing often follows to obtain special properties or enhanced precision. | |||
Powder presses can be equipped with cross pressing unit, multiplaten die-set and linear handling system or robot. The SPC quality control allows to control the compacts according to position, force and weight. | |||
==Common Types and Features== | |||
===Hydraulic Powder Presses=== | |||
*Withdrawal principle | |||
*Ejection principle | |||
*Multiplaten die-set | |||
*Cross pressing | |||
===Mechanical Powder Presses=== | |||
*Three-level programming (PRP, CAP and FRP) | |||
*Powder transfer with closed loop top punch hold down | |||
*Compensation of punch deflection | |||
*Automatic filling height correction | |||
*Contour filling | |||
==Video== | |||
<youtube>qWDLtU4bJUA</youtube> | |||
Revision as of 05:23, 5 October 2012
Powder Presses is the process of blending fine powdered materials, pressing them into a desired shape or form (compacting), and then heating the compressed material in a controlled atmosphere to bond the material (sintering). The powder metallurgy process generally consists of four basic steps: (1) powder manufacture, (2) powder blending, (3) compacting, (4) sintering. Compacting is generally performed at room temperature, and the elevated-temperature process of sintering is usually conducted at atmospheric pressure. Optional secondary processing often follows to obtain special properties or enhanced precision.
Powder presses can be equipped with cross pressing unit, multiplaten die-set and linear handling system or robot. The SPC quality control allows to control the compacts according to position, force and weight.
Common Types and Features
Hydraulic Powder Presses
- Withdrawal principle
- Ejection principle
- Multiplaten die-set
- Cross pressing
Mechanical Powder Presses
- Three-level programming (PRP, CAP and FRP)
- Powder transfer with closed loop top punch hold down
- Compensation of punch deflection
- Automatic filling height correction
- Contour filling
Video