Anti-impact diamond layer, diamond composite sheet and preparation method for diamond composite sheet
A technology of diamond composite sheet and diamond layer is applied in the field of superhard material products, which can solve the problems of high brittleness, high hardness of diamond composite sheet, and inability to meet drilling use, etc., so as to improve the footage, reduce the abnormal damage of drill teeth, and reduce cutting. Sharpness effect
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Embodiment 1
[0032] The impact-resistant diamond composite sheet of this embodiment is prepared by the following steps:
[0033] (1) Ingredients: Weigh the following raw materials according to the following weight ratio: diamond: 76 parts, graphite powder: 19 parts, catalyst: 5 parts; the catalyst is composed of the following weight ratio materials: iron: 59 parts , nickel: 17 parts, cobalt: 10 parts, manganese: 6 parts, silicon: 8 parts.
[0034] (2) Mixing: Pour the material into the mixing tank, then add cemented carbide balls with the same weight and diameter of 8-10mm into the mixing tank as the mixing medium, and install them in a three-dimensional mixer for mixing. Feed time was 4.5 hours.
[0035] (3) Purification treatment: Implant the material obtained in step 2 into a high-temperature furnace for treatment at a temperature of 860° C., a pressure of 50 Pa, and a time of 3.5 hours.
[0036] (4) Assembly: put the material obtained in step 3 into a metal sleeve cup, and then put i...
Embodiment 2
[0042] The impact-resistant diamond composite sheet of this embodiment is prepared by the following steps:
[0043] (1) Ingredients: Weigh the following raw materials according to the following weight ratio: diamond: 77.5 parts, graphite powder: 15 parts, catalyst: 5 parts; the catalyst is composed of the following weight ratio materials: iron: 55 parts , nickel: 20 parts, cobalt: 10 parts, manganese: 10 parts, silicon: 5 parts.
[0044] (2) Mixing: Pour the material into the mixing tank, then add cemented carbide balls with the same weight and diameter of 8-10mm into the mixing tank as the mixing medium, and install them in a three-dimensional mixer for mixing. Feed time was 5.5 hours.
[0045] (3) Purification treatment: Implant the material obtained in step 2 into a high-temperature furnace for treatment at a temperature of 870° C., a pressure of 50 Pa, and a time of 3 hours.
[0046] (4) Assembly: put the material obtained in step 3 into a metal sleeve cup, and then put ...
Embodiment 3
[0052] The impact-resistant diamond composite sheet of this embodiment is prepared by the following steps:
[0053] (1) Ingredients: Weigh the following raw materials according to the following weight ratio: diamond: 79 parts, graphite powder: 10 parts; catalyst: 4.7 parts; the catalyst is composed of the following weight ratio materials: iron: 48 parts , nickel: 16 parts, cobalt: 11 parts, manganese: 16 parts, silicon: 9.6 parts.
[0054] (2) Mixing: Pour the material into the mixing tank, then add cemented carbide balls with the same weight and diameter of 8-10mm into the mixing tank as the mixing medium, and install them in a three-dimensional mixer for mixing. The feeding time is 5 hours.
[0055] (3) Purification treatment: Implant the material obtained in step 2 into a high-temperature furnace for treatment at a temperature of 860° C., a pressure of 20 Pa, and a time of 4 hours.
[0056] (4) Assembly: put the material obtained in step 3 into a metal sleeve cup, and the...
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