Production process of diamond catalyst

Abstract

The invention relates to a production process of a diamond catalyst, which is characterized in that the procedures of the production process comprise proportioning, vacuum smelting, ingot casting, hot forging, hot rolling, butting winding through argon arc welding, mechanical cleaning, cold rolling, punching, surface processing, sorting and packaging. Compared with the traditional production process of the catalyst, the production process has the advantages that the production processes of the hot forging and the cold rolling through continuous winding are added; the surfacing and the annealing are canceled; the grain structure of the catalyst is changed; and the synthesis range of the catalyst is added. When the synthetic diamond catalyst is used for synthesizing diamonds, the production process has the advantages of wide synthesis pressure, wide synthesis temperature range and the like, the yield per unit of diamonds is high, and the synthesis course is easy to control; and the synthetic artificial diamond has the advantages of good color, good crystalline form, less internal defect, high strength and good thermal stability. Furthermore, the production process has the advantages that the finished product ratio of the catalyst is enhanced; the raw materials are saved; the production efficiency is enhanced; the production efficiency is reduced; and the production cost is reduced.

Description

technical field

[0001] The invention relates to a new production process for synthesizing artificial diamond with contact coal, which is a significant improvement on the contact coal production process. technical background

[0002] The synthesis of synthetic diamond usually uses coal as a catalyst to reduce the synthesis temperature and pressure. The traditional production process of coal contact for synthetic synthetic diamond is:

[0003] Ingredients→Stamping→Polishing→Sorting→Packaging.

[0004] In the traditional production process, coal contact inevitably brings defects such as pores, porosity, composition segregation, and coarse crystals caused by casting, which seriously affects its catalytic performance in the process of synthesizing synthetic diamonds and the quality of diamond products. In addition, co-planing The surface process removes the dense layer on the surface of the ingot, which affects the yield of the catalyst; the shearing process is time-consuming a...

Examples

Embodiment Construction

[0019] Introduce production method of the present invention in detail below in conjunction with embodiment, its production process is:

[0020] 1. Ingredients, prepare various raw materials according to the conventional formula of nickel-based catalyst or iron-based catalyst, or add additives on the basis of conventional formula of nickel-based catalyst or iron-based catalyst, such as sub-nanometer alkali metal compounds, tantalum and niobium Precious metals, rare earth elements. In this example, the ingredients are formulated according to NiMnCo catalyst, and sub-nanometer additive materials are added.

[0021] 2. For vacuum smelting and ingot casting, first add Ni, Mn, Co raw materials into the crucible, other raw materials and additives are placed in the vacuum furnace feeding funnel, and the furnace is quickly vacuumed to 10 -3pa , power transmission and melting, after complete melting, turn the funnel to add the remaining material, enter the refining; time is 30 minutes,...

technical field

[0001] The invention relates to a new production process for synthesizing artificial diamond with contact coal, which is a significant improvement on the contact coal production process. technical background

[0002] The synthesis of synthetic diamond usually uses coal as a catalyst to reduce the synthesis temperature and pressure. The traditional production process of coal contact for synthetic synthetic diamond is:

[0003] Ingredients→Stamping→Polishing→Sorting→Packaging.

[0004] In the traditional production process, coal contact inevitably brings defects such as pores, porosity, composition segregation, and coarse crystals caused by casting, which seriously affects its catalytic performance in the process of synthesizing synthetic diamonds and the quality of diamond products. In addition, co-planing The surface process removes the dense layer on the surface of the ingot, which affects the yield of the catalyst; the shearing process is time-consuming a...

Examples

Embodiment Construction

[0019] Introduce production method of the present invention in detail below in conjunction with embodiment, its production process is:

[0020] 1. Ingredients, prepare various raw materials according to the conventional formula of nickel-based catalyst or iron-based catalyst, or add additives on the basis of conventional formula of nickel-based catalyst or iron-based catalyst, such as sub-nanometer alkali metal compounds, tantalum and niobium Precious metals, rare earth elements. In this example, the ingredients are formulated according to NiMnCo catalyst, and sub-nanometer additive materials are added.

[0021] 2. For vacuum smelting and ingot casting, first add Ni, Mn, Co raw materials into the crucible, other raw materials and additives are placed in the vacuum furnace feeding funnel, and the furnace is quickly vacuumed to 10 -3pa , power transmission and melting, after complete melting, turn the funnel to add the remaining material, enter the refining; time is 30 minutes,...