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Polycrystalline diamond drawing die blank with hard alloy ring and preparation method thereof

A technology of hard alloy rings and polycrystalline diamonds, which is applied in metal processing equipment, metal extrusion forming tools, metal extrusion, etc. Thermal properties and impact toughness can be improved, and the effect of increasing hardness

Inactive Publication Date: 2018-01-12
铜陵市创威科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The patent application number 201610683883.X discloses a polycrystalline diamond wire drawing die blank with a hard alloy ring and its preparation method, which can withstand high strength and high speed drawing at the same time, but the applicant invented the polycrystalline diamond wire drawing obtained by the patent The hardness of the mold blank still cannot meet the needs of the actual production process

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  • Polycrystalline diamond drawing die blank with hard alloy ring and preparation method thereof

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Embodiment 1

[0026] A kind of polycrystalline diamond drawing die blank with hard alloy ring that the present invention proposes comprises polycrystalline diamond core and hard alloy ring, and the raw material of polycrystalline diamond core comprises by weight: 100 parts of diamond micropowder, cubic boron nitride 10 parts, 2 parts of binder; the components of the cemented carbide ring include: Co: 2.5%, Cr: 1.2%, Mn: 1%, Y: 2%, Zr: 1%, Mo: 0.48%, Ti: 0.3%, N: 0.28%, C: 4%, and the balance is W.

[0027] The binder includes by weight: 4 parts of Ag powder, 8 parts of Al powder, 18 parts of Ni powder, 12 parts of Co powder, 6 parts of Zr powder, 20 parts of potassium fluoroaluminate, 20 parts of potassium fluoroborate, and 55 parts of phenolic resin.

[0028] The preparation method of the above-mentioned polycrystalline diamond wire drawing die blank with hard alloy ring that the present invention also proposes comprises the steps:

[0029] S1. Heat the raw material of the cemented carbid...

Embodiment 2

[0035]A kind of polycrystalline diamond drawing die blank with hard alloy ring that the present invention proposes comprises polycrystalline diamond core and hard alloy ring, and the raw material of polycrystalline diamond core comprises by weight: 100 parts of diamond micropowder, cubic boron nitride 20 parts, 1 part of binder; the components of the hard alloy ring include by weight percentage: Co: 3.5%, Cr: 0.6%, Mn: 1.2%, Y: 1%, Zr: 2%, Mo: 0.45%, Ti: 0.4%, N: 0.26%, C: 8%, and the balance is W.

[0036] The binder includes by weight: 2 parts of Ag powder, 12 parts of Al powder, 10 parts of Ni powder, 20 parts of Co powder, 4 parts of Zr powder, 30 parts of potassium fluoroaluminate, 15 parts of potassium fluoroborate, and 65 parts of polyurethane resin.

[0037] The preparation method of the above-mentioned polycrystalline diamond wire drawing die blank with hard alloy ring that the present invention also proposes comprises the steps:

[0038] S1. Heat the raw material of...

Embodiment 3

[0044] A kind of polycrystalline diamond drawing die blank with hard alloy ring that the present invention proposes comprises polycrystalline diamond core and hard alloy ring, and the raw material of polycrystalline diamond core comprises by weight: 100 parts of diamond micropowder, cubic boron nitride 12 parts, 1.8 parts of binder; the components of the cemented carbide ring include: Co: 2.8%, Cr: 1.1%, Mn: 1.05%, Y: 1.8%, Zr: 1.4%, Mo: 0.47%, Ti: 0.33%, N: 0.275%, C: 5%, and the balance is W.

[0045] The adhesive includes by weight: 3.5 parts of Ag powder, 9 parts of Al powder, 16 parts of Ni powder, 14 parts of Co powder, 5.5 parts of Zr powder, 22 parts of potassium fluoroaluminate, 18 parts of potassium fluoroborate, 20 parts of phenolic resin, 38 parts of polyurethane resin.

[0046] The preparation method of the above-mentioned polycrystalline diamond wire drawing die blank with hard alloy ring that the present invention also proposes comprises the steps:

[0047] S1...

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Abstract

The invention discloses polycrystalline diamond drawing die blank with a hard alloy ring. The polycrystalline diamond drawing die blank comprises a polycrystalline diamond core and the hard alloy ring, wherein the raw material of the polycrystalline diamond core comprises, by weight percentage, 100 parts of diamond micro-powder, 10-20 parts of cubic boron nitride, 1-2 parts of binding agent; and the hard alloy ring comprises, by weight percentage, 2.5-3.5% of cobalt, 0.6-1.2% of chromium, 1-1.2% of manganese, 1-2% of yttrium, 1-2% of zirconium, 0.45-0.48% of molybdenum, 0.3-0.4% of titanium, 0.26-0.28% of nitrogen, 4-8% of carbon and the balance wolfram. The invention further discloses a preparation method of the polycrystalline diamond drawing die blank with the hard alloy ring. The polycrystalline diamond drawing die blank with the hard alloy ring has relatively high hardness, abrasion ratio and impact toughness, and the thermal stability of the blank is further improved and enhanced.

Description

technical field [0001] The invention relates to the technical field of diamond wire drawing dies, in particular to a polycrystalline diamond wire drawing die blank with a hard alloy ring and a preparation method thereof. Background technique [0002] The polycrystalline diamond wire drawing die blank with cemented carbide ring is made of diamond micropowder and nano-metal binder loaded into the cemented carbide support ring and sintered under high temperature and high pressure. The diamond produces a clamped internal pressure stress, which can effectively offset the external tensile stress of the polycrystalline diamond when drawing the wire, so it can withstand high strength and high-speed drawing, and is more suitable for manufacturing wire drawing dies with larger sizes. Widely used in drawing non-ferrous metals (copper, aluminum, nickel, etc.), stainless steel and various alloy wires. [0003] At present, due to the large gap between domestic polycrystalline diamond wir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C26/00C22C27/04C22F1/18C22C1/05C22C1/10B21C25/10
Inventor 张春涛汪颖菲章继名
Owner 铜陵市创威科技股份有限公司
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