Diamond drill bit products are widely used in geological exploration, non-ferrous metal exploration, nuclear industry exploration, coalfield geological exploration, hydropower foundation treatment, traffic exploration and other fields. The company has an experienced sales team and production technology R & D team, and has always adhered to the technical concept of combining theory with practice and “specialization in the field”, adhering to the service tenet of customer first and mutual benefit and win-win. The product has passed ISO9001 quality system certification! For a long time, the company’s sales and production technicians have been deeply involved in the construction sites where the products are used, and have obtained a lot of first-hand technical information and valuable experience. The key factors affecting the quality and stability of diamond drill bits are the matrix formula and product sintering process.

Diamond drill bit production process description:

1. Assembly process
The assembly process is the process that needs to be completed first, and it is also the process with the most preparation links and the most complex process. Pre-mix a variety of metal powders and diamonds evenly, then load the mixed metal powder into the processed graphite abrasive, assemble the corresponding steel matrix, and transfer to the sintering working position. This process requires many manual steps, which has a great impact on the quality of the product. Therefore, the operator needs to be careful and attentive: weigh the materials accurately, place the polycrystalline in a standardized manner, clean the diamonds at the nozzle position, etc. This can bring great convenience to the subsequent processing of the product, save processing costs, and reduce the scrap rate and defect rate of the product.
2. Sintering process
The sintering process uses powder metallurgy to sinter the assembled products at high temperature and high pressure to bond the matrix and the diamond layer together. At the same time, according to the product specifications, hardness, formula and other specific conditions, select the corresponding process parameters (including temperature, pressure, time and other values) to make the product have different hardness, wear resistance and impact resistance and other characteristics to meet the different construction requirements of customers.
3. Insulation and cooling process
Since the sintering temperature generally ranges from 600-1100℃, the sintered products cannot be cooled too quickly to avoid uneven shrinkage of different parts of the product, thereby causing cracks. They need to be placed in an insulation box to slowly cool down to ensure the quality of the product.
4. Demolding process
After about 10-12 hours of slow cooling, when the product is close to or reaches room temperature, it can be taken out for demolding and demolding. After demolding, it is necessary to spray different colors of paint according to the production plan to mark it to avoid confusion of the product.
5. Machining process
First use a common lathe to make the initial turn of the product, and then use a CNC lathe for fine turning. During processing, it is necessary to carefully compare the drawings, select or set the corresponding process and then process. After processing, use the relevant measuring tools to carefully test the dimensions of the product in accordance with the regulations. Unqualified products need to be reworked or scrapped.
6. Grinding and water inlet process
This process uses a grinder and a plugging machine to process the inner and outer and middle water tanks of the product, and accurately processes the three parts of the water outlet according to the specifications. The standard water outlet design and processing can make the product cool better and discharge rock powder, so that the product meets the use requirements.
7. Sandblasting is to use sandblasting equipment to remove rust and stains on the carcass and base of the product to make the surface of the product reach a certain degree of finish.
8. Printing anti-counterfeiting codes is to use laser coding equipment and pneumatic coding equipment to print a combination of numbers and letters at a specific position on the product. The anti-counterfeiting code of each product is its identity certificate, and the relevant information of the product can be queried based on the code.
9. The painting process is to spray different colors of paint on the product according to the product hardness spectrum table. Its function is to prevent rust, beautify and identify the hardness of the product, so that customers can choose the product conveniently.
10. Anti-rust treatment is to spray anti-rust oil on the base thread and inner diameter of the product that has not been painted.
11. Finally, affix the corresponding label to the product, wrap it with plastic shrink film, and put it into storage.