| Customization: | Available |
|---|---|
| After-sales Service: | According to Drill Bit Usage |
| Warranty: | According to Drill Bit Usage |
|
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Impregnated diamond core bits are widely used in mining and geological surveys for drilling into hard rock formations. These core bits are designed to provide efficient and precise drilling in challenging conditions. Here are some key aspects of their performance and applications:
Diamond Impregnation: Impregnated diamond core bits are manufactured by embedding industrial-grade diamonds into a matrix of metal powder and binder. This impregnation process ensures that the diamonds are evenly distributed throughout the bit, providing consistent cutting performance.
Hard Rock Drilling: Impregnated diamond core bits are primarily used for drilling into hard rock formations, such as granite, basalt, limestone, and other abrasive rock types. They are well-suited for applications where conventional drilling methods may struggle to penetrate or maintain a reasonable drilling speed.
Cutting Efficiency: The diamond impregnation on the bit's surface enables it to grind and cut through hard rock formations effectively. As the bit rotates, the diamonds abrade the rock, creating a cylindrical core sample. The matrix material between the diamonds provides support and helps to channel the cut rock particles away from the cutting face.
Core Recovery: One of the crucial aspects of diamond core drilling is the recovery of an intact and undisturbed core sample. Impregnated diamond core bits are designed to maximize core recovery by minimizing core loss and maintaining core integrity during the drilling process. This is important for accurate geological analysis and ore reserve estimation.
Durability and Bit Life: The durability and life span of impregnated diamond core bits depend on various factors, including the quality of diamonds, matrix material, design, and operating parameters. These bits are engineered to withstand the high rotational speeds and abrasiveness of hard rock drilling. However, their lifespan can vary depending on the specific rock conditions and drilling techniques employed.
Water Cooling: To enhance performance and prolong bit life, water is typically used as a coolant and lubricant during drilling. It helps to reduce friction, remove drill cuttings, and prevent overheating of the diamonds and the bit itself.
It is worth noting that technological advancements and ongoing research continue to improve the design and performance of impregnated diamond core bits, leading to enhanced drilling efficiency and productivity in mining and geological applications.
Rock Type |
Rock Hardness |
Abrasiveness |
Hardness NO. |
Clay,Shale,Ash Stone,Gypsum,Tuff,Serpentinite,Calcite, Coal,Argillite,Volcanics,Sandly Pebble |
Soft |
Medium |
BST 1/3 |
Sandstone,Lithoid Limestone, Limonite |
Medium Soft |
Very High |
BST 3/5 |
Medium Hard Sandstone,Hard Shale, Hard Ash Stone,Dolomitic,Marble,Hard Schist, Hard Streak Stone,Siltstone,Andestite |
Medium |
High |
BST 5/7 |
| Peridotite,Gneiss,Limonite | Medium Hard |
Medium High |
BST 7/9 |
Pegmatite,Schist,Norite,Syenite,Gabbro,Peridotite, Grandiorite,Granite,Basalt,Hard Streak Stone |
Hard |
Medium To Low |
BST 9/11 |
| Amphibolite,Diorite,Rhyolite,Quartzite | Very Hard | Medium To Low | BST 11 |
Silicious,Hard Sandstone,Rhyolite, Dense Quartzite,Ironstone,Taconite,Jasperite,Chert |
Utral Hard |
Low |
BST 14 |
| Type | AQ/B | BQ/B | NQ/B | NQ3/B | HQ/B | HQ3/B | PQ/B |
| O.D(mm) | 47.7 | 59.6 | 75.4 | 75.4 | 95.7 | 95.7 | 122.3 |
| O.D(inch) | 1.88 | 2.35 | 2.97 | 2.97 | 3.77 | 3.77 | 4.81 |
| I.D(mm) | 27.1 | 36.5 | 47.7 | 45.2 | 63.6 | 61.2 | 85.1 |
| I.D(inch) | 1.07 | 1.44 | 1.88 | 1.78 | 2.50 | 2.41 | 3.35 |
| Type | PQ3/B | NWM/B | NWG/B | NMLC/B | HMLC/B | NQTT/B | HQTT/B |
| O.D(mm) | 122.3 | 59.6 | 75.4 | 75.4 | 98.9 | 75.4 | 95.7 |
| O.D(inch) | 4.81 | 2.35 | 2.97 | 2.97 | 3.89 | 2.97 | 3.77 |
| I.D(mm) | 83 | 36.5 | 54.8 | 52.1 | 63.6 | 45 | 61.1 |
| I.D(inch) | 3.26 | 1.44 | 2.16 | 2.05 | 2.5 | 1.77 | 2.4 |
| Type | AW/B | BW/B | NW/B | HW/B | HWT/B | PW/B |
| O.D(mm) | 59.5 | 75.2 | 91.8 | 117.4 | 117.4 | 143.4 |
| O.D(inch) | 2.34 | 2.96 | 3.61 | 4.62 | 4.62 | 5.65 |
| I.D(mm) | 48.3 | 60.2 | 76 | 99.7 | 99.7 | 123.4 |
| I.D(inch) | 1.90 | 2.37 | 2.99 | 3.93 | 3.93 | 4.86 |
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