Product Description

We are a precision planetary reducer gearboxes manufacturer for electric motors ,electric machine,electric machinery.We supply variety custom made gear box and gears for power transmission through powder metallurgy process  .

Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powders. PM processes can avoid, or greatly reduce, the need to use metal removal processes, thereby drastically reducing yield losses in manufacture and often resulting in lower costs.

The powder metallurgy press and sinter process generally consists of 3 basic steps: powder blending (pulverisation), die compaction, and sintering. Compaction is generally performed at room temperature, and the elevated-temperature process of sintering is usually conducted at atmospheric pressure and under carefully controlled atmosphere composition. Optional secondary processing such as coining or heat treatment often follows to obtain special properties or enhanced precision.

Mixing of powders
This can often involve the introduction of alloying additions in elemental powder form or the incorporation of a pressing lubricant.

Forming of the mixed powder into a compact
The dominant consolidation process involves pressing in a rigid toolset, comprising a die, punches and, possibly, mandrels or core rods. However, there are several other consolidation processes that are used in niche applications.

Sintering of the compact to enhance integrity and strength
This process step involves heating of the material, usually in a protective atmosphere, to a temperature that is below the melting point of the major constituent. In some cases, a minor constituent can form a liquid phase at sintering temperature; such cases are described as liquid phase sintering. The mechanisms involved in CHINAMFG phase and liquid phase sintering are discussed briefly in a later section.

Secondary operations
The application of finishing processes to the sintered part. In the Powder Metallurgy industry, such processes are often referred to as secondary operations.

Powder metallurgy (PM)Typical workpiece materials 

Specification
 

Gearbox dimension: 4mm , 6mm , 8mm , 12mm , 18mm , 22mm , 28mm 
DC gear motor : 3V , 12V , 24V
Micor gear box

Sintered metal gearbox factory 

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