A synthetic block for synthesizing superhard composite sheets with a diameter greater than 70 mm and its preparation method

By designing a rectangular composite block and combining different baking temperatures and heating layers, the problem of explosion during the synthesis of large-diameter superhard composite sheets was solved, enabling the safe synthesis of superhard composite sheets with a diameter greater than 70mm, thus improving the synthesis success rate and product performance.

CN119459048BActive Publication Date: 2026-05-26
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Filing Date
2024-11-26
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing technologies are prone to backfiring when synthesizing large-diameter superhard composite sheets, leading to synthesis failure and failing to meet market demand for superhard composite sheets with diameters greater than 70mm.

Method used

The design of the composite block is a cuboid shape, with different baking temperatures for the side sealing blocks and the end sealing blocks. Combined with the power redistribution of the radial and axial heating layers, ceramic materials are used as the pressure transmission layer, and the composite is made using a six-sided top press.

Benefits of technology

It effectively reduced the backfire phenomenon during synthesis, and enabled the safe synthesis of ultrahard composite sheets with a diameter greater than 70mm, thus improving the success rate of synthesis and product performance.

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Abstract

This invention relates to a synthesis block for synthesizing superhard composite sheets with a diameter greater than 70 mm. The synthesis block is cuboid in shape, with the length and width being the same, ranging from 98 to 100 mm. The total height of the two separate blocks is 0.4 to 1 mm greater than the length or width, and the inner diameter is 79 to 83 mm. The synthesis block includes a sealing layer with a cavity within it. A core pillar, composed of multiple stacked blanks, is located within the cavity. The core pillar has a diameter greater than 70 mm. During synthesis, a six-sided top press is used. The top hammer has a side length of 84 to 88 mm, a small bevel angle of 41.5°, a length of 18 to 20 mm, a diameter of 240 to 260 mm, and a height of 170 to 180 mm. Using the synthesis block of this invention can effectively solve the problem of blowouts during the synthesis of large-diameter superhard composite sheets, and can safely synthesize superhard composite sheets with a diameter greater than 70 mm.
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