Tungsten Carbide Shield Surrounding Scraper Cutter

Tunnel Boring Machine, engineering machinery for tunneling. It has been widely used in subway, railway, highway as well as municipal engineering' tunneling work.
Product description

Tungsten Carbide Shield Surrounding Scraper Cutte
Overview:
Tungsten Carbide Shield Surrounding Scraper Cutte 
Assembled for tunneling borer machines and applied to the tunneling projects, cutting and moving soft rock and silt.
Tunnel Boring Machine, engineering machinery for tunneling. It has been widely used in subway, railway, highway as well as municipal engineering' tunneling work.
Tunneling cutter are assembled on the tunneling borer machines for tunneling work. The scraper is usually made by tungsten carbide bits brazed on the steel body for scarping the earth and silt. Shield alloy is the carbide cutters on TBM for tunneling work. Usually tungsten cobalt alloy is used as material for the carbide bits, which requires the alloy has high hardness, wear resistance and impact toughness. The structure and composition of alloy has high hardness, wear resistance and impact toughness. The structure and composition of alloy are different according to the difference of the tool's functioning stratum.


Picture and drawing:


 

Grade:

GRADE

Representative Performance Index

Recommended Applications

Hardness

Density
 (g/cm')

Traverse Strength

YG10

88

14.50

2800

With good wear resistant performance, applicable to medium toughness tunneling work..

YG12

86

14.30

2800

With good toughness and wear resistant performance, applicable to mining bots and TMB cutters.


Dimension:

TYPE  

     L

B

H

KDC 5033

50.0

21.0

33.0

 

Tolerance:

Nominal size

Tolerance (mm)

≤ 20.0

±0.20

>20.0

±0.30


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