Henan Sifangda Superhard Materials Co., Ltd. passed two provincial scientific research results

——Development of high-grade high-quality polycrystalline diamond wire drawing blanks and development of polycrystalline diamond composite sheets for super large diameter cutting tools

On December 29, 2009, entrusted by the Henan Provincial Department of Science and Technology, Zhengzhou Municipal Science and Technology Bureau organized relevant experts to research and develop two high-quality high-quality polycrystalline diamond wire drawing blanks for Henan Sifangda Superhard Materials Co., Ltd. And the "development and research of polycrystalline diamond composite sheets for super large diameter cutting tools" to identify scientific and technological achievements. The provincial and municipal leaders of the Department of Achievements of the Henan Provincial Department of Science and Technology and the Director of the Achievements Division of the Zhengzhou Municipal Science and Technology Bureau attended the meeting. The appraisal committee consisted of seven experts from the industry.
The appraisal committee listened to the reports of the two projects, carefully reviewed the relevant appraisal materials and watched the products. After questioning and discussion, the appraisal opinions were formed. Its main evaluation is as follows:
The polycrystalline diamond wire drawing die blank project optimizes the raw material formulation and purification process; adopts high-efficiency cobalt removal process, and independently develops non-metal multi-component ceramic binder to replace cobalt-containing binder; research and design unique polycrystalline diamond core Structure; through the formulation research of the system, high temperature and high pressure cavity assembly structure design and sintering process research, prepare polycrystalline diamond wire drawing blank with diamond particle size 1-50 microns, polycrystalline size diameter 2.5-30 mm, thickness 1.0-20 mm Series products. It has been proved by users that the product has good wear resistance, high thermal stability, high processing efficiency and processing precision, long service life, and the main performance indicators have reached the international advanced level, which can replace imported and have good application prospects.
Based on the research of self-designed raw material formula, high temperature and high pressure chamber assembly structure and unique charging mode, as well as high temperature and high pressure sintering technology, the polycrystalline diamond composite sheet project successfully developed a cutting diameter of 46 mm. Polycrystalline diamond compact for tools. It has been proved by users that the product has good wear resistance, good impact resistance, high processing efficiency and processing precision, long service life, and the main performance indicators have reached the international advanced level, filling the domestic blank and replacing imported. Promote application value and broad market prospects.
Through the identification of the two projects, the product quality is stable and the system is perfect. All of them have formed various specifications and realized large-scale production, sales and bulk export to meet the needs of different customers.
Based on the domestic six-sided top press to produce polycrystalline diamond wire drawing blanks with intrinsic quality reaching the international advanced level and polycrystalline diamond composite sheets for super large diameter cutting tools, this has broken the long-term monopoly pattern of a few developed countries, and It has changed the situation that it has not been widely popularized due to the high price of products. It has perfected product specifications, based on domestic equipment, developed products with independent property rights, promoted the progress of the mechanical processing industry, and developed superhard materials and products with Chinese characteristics. Production is of great significance.

Drill pipe

Hejian Deris is a supplier of 5DP standard OD76mm, OD89mm ,OD102mm Length 1.5m,2m,3m,6m etc Water Wells Drill Pipe and OD127mm length 9.6m oil Drill Pipe . Every drill pipe has nondestructive inspection , cleaned and thread oil before packing. Raw material`s size, quantity, length, mechanical property are checked by our QC staff and factory own laboratory

1)   Drill pipe Adopt tp friction welding .

2)   International first-class raw materials and advanced heat-treatmeat process fully reflects the high

      strength  and toughness, especially high low-temperature toughness.

3)    procudtion quality and standards meet and exceed  the comprehensive requirements of API 5DP ,API 7K,

       API Q1 and reach to the international first-class standard.

4)   Smooth and long upset transition of pipe body and solid hard banding increas the sevice long and safety.

5)   Complete testing means,advanced testing equipment and strict control ensure the production of high

      quality products.

6)   First-class technical team and high efficient R&D ability of products can supply the  customers

      special  customized products.

Drill pipe usage notes:

 1. New drill pipe should be pasted thread oil before connection

 2. Make up and break at least 3 times before drilling

 3. Hard bending and plastic coating can be processed according to clients` special requirements

Drill Pipe

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