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Description:
Manufactured with very small, high quality synthetic diamonds mixed
evenly through a metal matrix. The matrix hardness is chosen to
suit the rock formation, so that it wears evenly throughout the
life of the bit, exposing new sharp diamonds.
The main crown technical parameters of impregnated diamond core
bits include diamond grade,size,concentrarion and quality, matrix
hardness and crowm shapes. The users can make rational selections
according to the formations to be drilled. To avoid excessive bit
wear, tungsten carbide inserts are used on both sides on the
waterway, and gage stones are a bit larger. Our impregnated diamond
core bits are the most commonly useful bits in the mineral
exploration industry, as they have the widest range of application.
The carefully selected grades of high quality synthetic diamond are
distributed in the depth of impregnated bit's matrix series.
Features:
1. Significantly outperforms the successful Series range in
drilling speed and bit life.
2. Protects the diamond from oxidation and surface degradation.
3. Inhibits the premature "pull-out" of the diamond.
4. Available in multiple standard configurations and selected on
the basis of relative rock hardness and ground conditions.
Type of Bit Matrix:
The matrix of our impregnated bits is designed to expose new
diamonds to the bits' cutting face as wear occurs. Fast penetration
rate is maintained as a result of this action, also with long life
using time is important, meanwhile it will keep the cost of diamond
drilling to a minimum.
The optimum diamond size, concentration and matrix type are
dependent on the hardness and abrasiveness of the formation to be
drilled.
Parameter of Diamond Core Bit:
Description | 钻头 Core Bit | 钻头 Core Bit | 金刚石扩孔器Reaming Shell | |||
规格型号 | 外径 Outside Diameter | 内径 Intside Diameter | 外径 Outside Diameter | |||
Model | 英寸Inches | 毫米 mm | 英寸Inches | 毫米 mm | 英寸Inches | 毫米 mm |
BTW | 2.345 | 59.65 | 1.667 | 42.1 | 2.36 | 59.95 |
NTW | 2.965 | 75.31 | 2.218 | 56.1 | 2.98 | 75.7 |
HTW | 3.762 | 95.57 | 2.809 | 71.1 | 3.783 | 96.09 |
AQ | 1.875 | 47.63 | 1.062 | 26.97 | 1.89 | 48.01 |
BQ | 2.345 | 59.65 | 1.433 | 36.4 | 2.36 | 59.95 |
BQ3 | 1.345 | 59.65 | 1.32 | 33.53 | 2.36 | 59.95 |
NQ | 2.965 | 75.31 | 1.875 | 47.63 | 2.98 | 75.7 |
NQ3 | 2.965 | 75.31 | 1.775 | 45.08 | 2.98 | 75.7 |
HQ | 3.762 | 95.57 | 2.5 | 63.5 | 3.783 | 96.09 |
HQ3 | 3.762 | 95.57 | 2.406 | 61.11 | 3.783 | 96.09 |
PQ | 4.805 | 122.05 | 3.345 | 84.96 | 4.828 | 122.65 |
PQ3 | 4.805 | 122.05 | 3.27 | 83.08 | 4.828 | 122.65 |
T2-56 | 2.205 | 56 | 1.642 | 41.7 | 2.224 | 56.5 |
T2-76 | 2.992 | 76 | 2.429 | 61.7 | 3.019 | 76.5 |
T2-86 | 3.385 | 86 | 2.823 | 71.7 | 3.406 | 86.5 |
T2-101 | 3.976 | 101 | 3.295 | 83.7 | 3.996 | 101.5 |
T6-101 | 3.976 | 101 | 3.11 | 79 | 3.996 | 101.5 |
T6-131 | 5.157 | 131 | 4.252 | 108 | 5.157 | 131.5 |
Drill Bit Selection Reference Table:
Formation hardmess | rock | abrasiveness | Bit Matrix Range | ||||||||||
HRC55 | HRC 45-50 | HRC 40-45 | HRC 35-40 | HRC 30-35 | HRC 25-30 | HRC 20-25 | HRC 15-20 | HRC 10-15 | HRC 5-10 | HRC 0-0-5 | |||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | |||
soft | Clay,shale,verysoft,sandstone,marl argilite,volianictuff.ect. | Hihg | ● | ● | ● | ● | |||||||
Medium | ● | ● | ● | ● | |||||||||
Low | ● | ● | ● | ● | |||||||||
medium-hard | limestone,rhyolite,lava,andesite,marble,hard sandstone,limonite,dolomite,schist,ect. | High | ● | ● | ● | ● | ● | ● | |||||
Medium | ● | ● | ● | ● | |||||||||
Low | ● | ● | ● | ● | |||||||||
hard | Basalt,gmeiss,granodiorite,amphibolite,pegmatite,diabase.ect. | High | ● | ● | ● | ● | ● | ||||||
Medium | ● | ● | ● | ● | |||||||||
Low | ● | ● | ● | ● | |||||||||
very hard | Hard granite,quartzitic,xonglomerate,quarizite hard slate,rhyolite,ect. | High | ● | ● | ● | ● | ● | ● | ● | ||||
Medium | ● | ● | ● | ● | ● | ● | |||||||
Low | ● | ● | ● |
Diamond Drill Bit Lip Shape:
Full Round | Higher diamond content in the bit face.higher penetration rate.and suitable for drilling hard rocks. | |
Semi-round | Even diamond distribution in the bit face,suitable for drilling medium-hard and hard rocks.or a little broken and loose formations. | |
Fiat | For impregnated diamond bit oniy,suitable for drilling hard abrasive rocks. | |
Bottom Discharge Design | Suitable for drilling sedimentary or metamorphic formations containing more powder mineraiw with high core recovery percentage,and no excessive core washout. | |
Stepped | Suitable for dr drilling medium-hard,broken or interbedded formations, hoie deviation can be prevented. | |
Tapered | Suitable for drilling soft and medium-hard formations with high penetration rate. | |
Serrated Profile | Suitable for drilling hard dense formations with high penetration rate. | |
Staggered Concentric Profile | Suitabie for drilling hard dense formations with high penetration rate under low bit weight. | |
GearWheel | Suitabie for drilling hard dense formations with high penetration rate. |