Product characteristics
Using high strength and high toughness tungsten carbide button can improve the
impact resistance of teeth and reduce the rate of broken teeth.
The optimized number of button row, button number, button height and unique
shape of alloy teeth give full play to the cutting capacity and speed of the
bit.
Use clip spring to lock the cone, which can withstand high drilling pressure.
Insert and weld anti-wear alloy in the inner hole of the cone to improve the
anti-occlusion ability of the bearing.
The reliability of bearing seal is improved by using O-ring with high
saturation NBR.
The use of all-rubber oil storage bags which can limit the pressure difference
and prevent drilling fluid from entering the lubrication system provides good
lubrication for the bearing system, ensures the normal operation of the O-ring
and improves the working life of the bit.
A new type of grease with high temperature and low wear resistance of 250 C is
used to improve the high temperature resistance of the sealing and lubricating
system of drill bits.
Grade |
Equal to ISO Category Number |
Density (G/cm3) |
Hardness (HRA) |
Bend Strength (TRS/N/mm2) |
Application |
YG4C |
K10 |
15 |
89.5 |
1800 |
Mainly used as small buttons for percussion bits and as the inserts of rotary prospecting bits to cut soft, medium-hard formations. |
YG6 |
K20 |
15 |
90 |
1700 |
Mainly used as the buttons of small and medium-sized percussion bits and as the inserts of rotary prospecting bits to cut soft, medium-hard formations. |
YG8 |
K30 |
14.7 |
88.5 |
2200 |
Mainly used as the buttons of small and medium-sized percussion bits and as the inserts of rotary prospecting bits to cut soft, medium-hard formations. |
YG8C |
K40 |
14.7 |
88 |
2300 |
Mainly used as the buttons of small and medium-sized percussion bits and as the inserts of rotary prospecting bits to cut soft, medium-hard formations. |
YG9C |
|
14.5 |
87 |
2400 |
Mainly used as the inserts and buttons for rotary-percussive bits, coal-cutting bits and tricone bits to cut medium-hard and hard formations. |
YG11C |
|
14.4 |
86.5 |
2450 |
Chiefly for the inserts and Button of heavy rock drill bits and rotary-percussive bits, coal-cutting bits and tricone bits to cut medium-hard and hard formations. |
YG13C |
|
14.3 |
86 |
2500 |
Mainly used as the inserts and buttons of tricone bits rotary-percussive bits and heavy rock drill bits to cut medium-hard and hard formations. |
YG15 |
|
14 |
86.5 |
2500 |
It is stronger and is mainly used as the inserts and buttons of rotary-percussive bits, heavy rock drill bits to cut hard and very hard formations. |
YG16 |
|
14.10- 14.30 |
87.5 |
2400 |
It is mainly used for making cemented carbide substrate Tips to be used in PDC cutters for excavating coal and oil field PDC bits. |