Manufacturing process of novel large diamond single crystal

Abstract

The invention belongs to the technical field of diamond manufacturing, and particularly relates to a novel large diamond single crystal manufacturing process which comprises the following steps: step 1, product selection work: screening and filtering a large number of single crystals and catalysts, selecting single crystals and catalysts meeting appropriate requirements, cleaning the single crystals and the catalysts, drying the single crystals and the catalysts after cleaning, and grinding the single crystals and the catalysts into powder; the manufacturing process of the novel large diamond single crystal has the beneficial effects that the most suitable raw materials can be selected in quantity by setting the steps of product selection work, the production efficiency is improved, the production cost is reduced, the production cost is reduced, the production cost is reduced, the production efficiency is improved, and the production cost is reduced. The subsequent machining strength and the machining efficiency are guaranteed, the quality of finished products can be efficiently guaranteed by setting the checking and trimming step, raw materials can be subjected to multi-time multi-stage treatment, and the use of cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of diamond manufacturing, and in particular relates to a novel manufacturing process of large diamond single crystal. Background Art

[0002] Diamond, also known as diamond, is a colorless crystal composed of carbon and is the hardest substance known in nature. It also has many excellent physical, chemical and optical properties, making it very potential for application. However, large-grained, high-quality natural diamonds that can be mined on the earth are very rare and expensive, so artificial diamonds came into being.

[0003] However, the existing auxiliary manufacturing efficiency of large diamond single crystals is poor, and there are problems such as the inability to guarantee the quality of subsequent finished products and limited cost control. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a novel manufacturing process of large diamond single crystals, which has the characteristics of high auxiliary manufacturing efficiency, higher quality of finished products and good cost control effect.

[0005] To achieve the above object, the present invention provides the following technical solution: a new large diamond single crystal manufacturing process, comprising the following steps:

[0006] Step 1: Product selection: Screen and filter a large number of single crystals and catalysts, select the single crystals and catalysts that meet the requirements, clean the single crystals and catalysts, dry them after cleaning, and then collect the dried single crystals and catalysts;

[0007] Step 2, processing: preliminarily mix the single crystal and the catalyst, pressurize and heat the mixed single crystal and the catalyst, take out the mixture after pressurization and heating, and add the single crystal and the catalyst to the taken out mixture, and continue to pressurize and heat after adding, and repeat the operation, and then cool down and collect the processed products after repeated operations;

[0008] Step 3, inspection and finishing: The finished products after cooling are inspected and processed. The qualified finished products can be directly collected and stored for use, while the unqualified finished products need to repeat the processing work in step 2 and be inspected repeatedly until they meet the requirements. The finished products can then be collected and stored for use.

[0009] Preferably, the single crystal material is a group consisting of one or more of graphite, graphene and graphite flakes.

[0010] Preferably, the device for pressurizing and heating the single crystal and the catalyst is a conventional pressurizing and heating device.

[0011] Preferably, the catalyst material is one of iron powder, cobalt powder, nickel powder, ruthenium powder or rhodium powder.

[0012] Preferably, the pressurizing strength of the heating and pressurizing equipment is between 6Gpa and 10Gpa.

[0013] Preferably, the heating temperature of the heating and pressurizing equipment is between 1000 degrees and 1700 degrees.

[0014] Preferably, the heating and pressurizing time is between 20 min and 50 min.

[0015] Preferably, the inspection and trimming includes a step of inspecting the strength and size of the finished product.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention, by setting the steps of product selection, can select a large number of the most suitable raw materials, ensure the strength of subsequent processing and ensure processing efficiency. By setting the inspection and finishing steps, the quality of the finished product can be efficiently guaranteed, and the raw materials can be processed multiple times and at multiple levels to reduce the use of costs.

[0018] 2. The present invention can ensure the strength of the finished product after material mixing and the processing efficiency by setting the pressurizing intensity of the heating and pressurizing equipment to between 6Gpa-10Gpa and the heating temperature of the heating and pressurizing equipment to between 1000 degrees and 1700 degrees, and can ensure the quality of the finished product by testing the strength and size of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the process of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the process of product selection;

[0022] Figure 3 for Figure 1 Schematic diagram of the process flow of the processing;

[0023] Figure 4 for Figure 1 Schematic diagram of the process of detection and trimming. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] See also Figure 1-4 The present invention provides the following technical solution: A novel process for manufacturing large diamond single crystals, comprising the following steps:

[0027] Step 1: Product selection: Screen and filter a large number of single crystals and catalysts, select the single crystals and catalysts that meet the requirements, clean the single crystals and catalysts, dry them after cleaning, and then collect the dried single crystals and catalysts;

[0028] Step 2, processing: preliminarily mix the single crystal and the catalyst, pressurize and heat the mixed single crystal and the catalyst, take out the mixture after pressurization and heating, and add the single crystal and the catalyst to the taken out mixture, and continue to pressurize and heat after adding, and repeat the operation, and then cool down and collect the processed products after repeated operations;

[0029] Step 3, inspection and finishing: The finished products after cooling are inspected and processed. The qualified finished products can be directly collected and stored for use, while the unqualified finished products need to repeat the processing work in step 2 and be inspected repeatedly until they meet the requirements. The finished products can then be collected and stored for use.

[0030] Specifically, the single crystal material is a group consisting of one or more of graphite, graphene and graphite flakes, and the equipment for pressurizing and heating the single crystal and the catalyst is a conventional pressurizing and heating equipment.

[0031] Specifically, the catalyst material is one of iron powder, cobalt powder, nickel powder, ruthenium powder or rhodium powder.

[0032] Specifically, the pressurizing strength of the heating and pressurizing equipment is between 6Gpa and 10Gpa, the heating temperature of the heating and pressurizing equipment is between 1000 degrees and 1700 degrees, and the heating and pressurizing time is between 20 minutes and 50 minutes.

[0033] Specifically, the inspection and trimming step is a step of inspecting the strength and size of the finished product.

[0034] The working principle and use process of the present invention:

[0035] Step 1: Product selection: Screen and filter a large number of single crystals and catalysts, select the single crystals and catalysts that meet the requirements, clean the single crystals and catalysts, dry them after cleaning, and then collect the dried single crystals and catalysts;

[0036] Step 2, processing: preliminarily mix the single crystal and the catalyst, pressurize and heat the mixed single crystal and the catalyst, take out the mixture after pressurization and heating, and add the single crystal and the catalyst to the taken out mixture, and continue to pressurize and heat after adding, and repeat the operation, and then cool down and collect the processed products after repeated operations;

[0037] Step 3, inspection and finishing: The finished products after cooling are inspected and processed. The qualified finished products can be directly collected and stored for use, while the unqualified finished products need to repeat the processing work in step 2 and be inspected repeatedly until they meet the requirements. The finished products can then be collected and stored for use.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel process for manufacturing large diamond single crystals, comprising the following steps, characterized in that: Step 1: Product selection: Screen and filter a large number of single crystals and catalysts, select the single crystals and catalysts that meet the requirements, clean the single crystals and catalysts, dry them after cleaning, and then collect the dried single crystals and catalysts; Step 2, processing: preliminarily mix the single crystal and the catalyst, pressurize and heat the mixed single crystal and the catalyst, take out the mixture after pressurization and heating, and add the single crystal and the catalyst to the taken out mixture, and continue to pressurize and heat after adding, and repeat the operation, and then cool down and collect the processed products after repeated operations; Step 3, inspection and finishing: The finished products after cooling are inspected and processed. The qualified finished products can be directly collected and stored for use, while the unqualified finished products need to repeat the processing work in step 2 and be inspected repeatedly until they meet the requirements. The finished products can then be collected and stored for use.

2. A novel process for manufacturing large diamond single crystal according to claim 1, characterized in that: The single crystal material is a group consisting of one or more of graphite, graphene and graphite flakes.

3. The manufacturing process of a novel large diamond single crystal according to claim 1, characterized in that: The equipment for pressurizing and heating the single crystal and the catalyst is a conventional pressurizing and heating equipment.

4. The manufacturing process of a novel large diamond single crystal according to claim 1, characterized in that: The catalyst material is one of iron powder, cobalt powder, nickel powder, ruthenium powder or rhodium powder.

5. The manufacturing process of a novel large diamond single crystal according to claim 1, characterized in that: The pressure strength of the heating and pressurizing equipment is between 6Gpa and 10Gpa.

6. The manufacturing process of a novel large diamond single crystal according to claim 1, characterized in that: The heating temperature of the heating and pressurizing equipment is between 1000 degrees and 1700 degrees.

7. The manufacturing process of a novel large diamond single crystal according to claim 1, characterized in that: The heating and pressurizing time is between 20min and 50min.

8. The manufacturing process of a novel large diamond single crystal according to claim 1, characterized in that: The inspection and trimming step is to inspect the strength and size of the finished product.

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