Zhuzhou Up Cemented Carbide Co.,Ltd

Product name : 65/35 3/16
Product No. : 3/16
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  Details:

65% YD5 3.2~4.8mm L280mm WC and copper composite rod
65% YD5 3.2~4.8mm L280mm WC and copper composite rod


A.tungsten carbide composite rod it is made of by sintering tungsten carbide scrap and 
elastic matrix alloy,
Outer layer
 of the special flux and coloring is marking scrap grade,the 
composition of sintering tungsten carbide scrap is mainly CO and WC,The hardness is HRA
89~91,tire body matal is Ni and copper alloy,strength can up to 690MPa, hardness HB
160.

 

B. Production time 7 days

 


C.tungsten carbide composite rodusage:                                                                                                      

it is mainly used for surfacing welding the oil, mining, coal mining, geology, construction and other
industries in some serious wear and tear or artifacts of both cutting.Such as: milling shoes, grinding, 
centralizer, reamer, drill pipe joints, hydraulic cutter, scraper, plough planer knives, core bit, piling 
drill, twist drill, etc.

 

 

D.tungsten carbide composite rod size and grade:                                                                                

there are eight grades according the size of tungsten carbide scrap.

grade

size (mm)

scrap size (mm)

color

YD-9.5

9.5

9.5~6.5

dark green

YD-8

8.0

8.0~6.5

dark blue

YD-6.5

6.5

6.5~5.0

red

YD-5

5.0

5.0~3.0

yellow

YD-3

3.0

3.0~2.0

pink

YD-10mesh

10mesh

10~18mesh

light green

YD-18mesh

18mesh

18~30mesh

light green

YD-30mesh

30mesh

30~50mesh

light yellow

 

 

E. overlaying process of tungsten carbide composite rod,

The oxyacetylene butt, the operating process is as follows:
(1) clean up the workpiece, make the welding workpieces surface with metallic luster.
(2) the flat position of welding, therefore can use the appropriate clamping fixture for control of surfacing layer
thickness, thick piece of available.

(3) with a neutral flame preheating, flame core not contact surface, the distance to 25 mm is advisable.
(4) carbide surfacing welding layer.With YD type electrode surfacing, the use of neutral flame (can be slightly 
carbonizing flame) tip is steady on the workpiece surface movement, the flame of the alloy electrode heating 
(be careful not to make flame cone tip contact alloy particles), tire body in the electrode alloy melt, carbide particles
are also falling.
Before the tire body of molten metal solidification, the particles arrange, can use left hand of the alloy 
electrode fingers, or another person holding a base electrode or pull rod on graphite rod in a quick stir particles, 
making them evenly aligned neatly.
Surfacing layer thickness control according to the requirements of design.
(5) after the workpiece welding, where no ventilation, slow cooling, cannot quench, conditional usable asbestos blanket cover.
(6) the workpiece after cooling to room temperature, if necessary, grinding surface surfacing to required size and shape.
(7) clean up the workpiece, remove all splash, slag, etc.

 

 

 

 


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