EN
ES
PT
SV
DE
TR
FR
tungsten carbide cross bit tips for drilling concrete hard metal zhuzhou mingri
- Description
1.Advantages
1. Over 19 Years' efforts in making high quality tungsten carbide products.
2. Rich experience in grade researching, mould designing, automatic press, HIP sintered, surface treating and quality control.
3. We use 100% raw material to produce tungsten carbide products.
4. It is with high hardness, good wear resistance and high toughness.
5. We can offer any size tungsten carbide products.
6. We produce the product according to your requirements.
7. Good quality with competitive price.
8. The best and reliable after service.
2.Grade and application
Other grades and sizes can be offered as per customers' requirements.
3. Size and Drawing
tungsten carbide tricone drill bit,drilling bits for coal mining,drilling bits for coal mining
Introduction of cemented carbide drill bits tips for metal bore drilling K01
Grade | g/cm3 | TRS | Hardness | Performance & application recommended |
MPa | HRA | |||
YG4C | 15.1 | 1800 | 90 | Mainly used as small buttons for percussion bits to cut soft and medium hard formations. |
YG6 | 14.95 | 1900 | 90.5 | For coring crowns, electric coal drill bits, coal cutting picks, oil cone bits and scraping knife bits, used in geological prospecting, coal mining and oil well boring. |
YG8 | 14.8 | 2200 | 89.5 | For coring crowns, electric coal drill bits, coal cutting picks, oil cone bits and scraping knife bits, used in geological prospecting, coal mining and oil well boring. |
YK05 | 14.95 | 2500 | 90.5 | Mostly used as the buttons of small and medium sized percussion bits and as the inserts of rotary prospecting bits to cut soft and medium hard formations. |
YK15 | 14.6 | 2450 | 87.6 | Suitable to strips, conical buttons for rotary percussion-resistant, geological prospection buttons, cut soft and medium hard formations. |
YK20 | 14.4 | 2500 | 86.8 | Primarily for the buttons and inserts of rotary percussion bits to cut medium-hard and hard formations. |
YK25 | 14.4 | 2550 | 87.2 | Primarily for the buttons and inserts of rotary percussion bits to cut medium-hard and very hard formations. |
YG11C | 14.4 | 2700 | 86.5 | Largely for the inserts and buttons of percussion bits and tricone bits to cut medium-hard, hard, and very hard formations. |
YG13C | 14.2 | 2850 | 86 | Primarily for the buttons of tricone bits and inserts of rotary percussion bits to cut hard and very hard formations. |
YG15C | 14 | 3000 | 85.5 | For oil cone drill bits, for medium soft and medium-hard rocks. |
1, Soon after the order is confirmed, carbide forging die products will start to prepare the RTP powder as per customer’s requirement with our wet-grinding machine
2, Before mass production, we need to do a trial pressing and sintering using every mould, and we check the appearances and the sizes of carbide forging die samples with micrometer, projectors etc. to ensure that the requirements of the drawings can be met before batch production
3, Bulk production ,press the raw materials to shape blanks,and all carbide forging die blanks must be passed by semi finished inspection,
4, Then sinter blanks to finish (HIP) and finished products inspection, we have 10 sets of vacuum sintering furnace and 2 sets of HIP in the factory ensure the best quality and production capacity.
5, 1). cleaning/tumbling is to make the carbide forging die look more beautiful.
2).The carbide forging die can be ground according to customers’ order to a tolerance of +/-0.05
