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Automatic Power Transmission Gear Reducer Planetary Gearbox Reduction Gear Box for Gear Motors

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Model NO.Gear box TypePlanetary Gear Reducer
Transport PackagePoly Bag, Carton Specificationcustom made
OriginChina

Product Details

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 three 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 solid 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 
Workpiece materialDensity (grams/cc)Yield strength (psi)Tensile strength (psi)Hardness (HRC)
Iron 5.2 to 7.0 5.1*103 to 2.3*104 7.3*103 to 2.9*104 40 to 70
Low alloy steel 6.3 to 7.4 1.5*104 to 2.9*104 2.00*104 to 4.4*104 60 to 100
Alloyed steel 6.8 to 7.4 2.6*104 to 8.4*104 2.9*104 to 9.4*104 60 and up
Stainless steel 6.3 to 7.6 3.6*104 to 7.3*104 4.4*104 to 8.7*104 60 and up
Bronze 5.5 to 7.5 1.1*104 to 2.9*104 1.5*104 to 4.4*104 50 to 70
Brass 7.0 to 7.9 1.1*104 to 2.9*104 1.6*104 to 3.5*104 60

Specification
 
Product name Powder metallurgy precision planetary gearboxes for machines
material metal alloy, Iron , stainless steel , brass 
process Metal injection molding , powder metallurgy
Surface treatment Polishing , plating ,sand blasting , PVD , coating
Tolerance ±0.3%
Drawing format DWG ,IGS , STP
Delivery time  30 days for mass production

Length: 12.3mm
Gear Ratio :3.5 , 4 , 4.75

Length : 15.9mm
Gear Ratio : 12 , 16 , 19 , 23 

Length : 19.5mm
Gear Ratio : 43 , 64 , 76 , 90 , 107

Length : 23.1mm 
Gear Ratio : 150 , 256 , 304 , 361 , 428 , 509



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