CN203394356U - Abrasion-resistant tool - Google Patents
Abrasion-resistant tool Download PDFInfo
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- CN203394356U CN203394356U CN201320472690.1U CN201320472690U CN203394356U CN 203394356 U CN203394356 U CN 203394356U CN 201320472690 U CN201320472690 U CN 201320472690U CN 203394356 U CN203394356 U CN 203394356U
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- interface
- abrasion
- wear resistant
- gradient
- resistant tools
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Abstract
The utility model discloses an abrasion-resistant tool which comprises a base and a continuous abrasion-resistant layer. The base is provided with a non-planar interface, and the interface is formed between the base and the abrasion-resistant layer. The abrasion-resistant tool is characterized in that the interface at least comprises two gradient areas, and the areas are intersected with one another at the interface; the interface comprises an annular cutting surface and a top plane, and the annular cutting surface is provided with a center; gradients of the gradient areas are different from one another; the measured thicknesses of different annular outer-diameter positions of the abrasion-resistant layer are different from one another; the gradient of at least one gradient area of the interface can be changed continuously; the base is made of hard alloy; the abrasion-resistant layer comprises polycrystalline diamond binding agents. The abrasion-resistant tool has the advantages that residual tensile stress on the PDC (polycrystalline diamond compact) tool in high-temperature and high-pressure pressing procedures can be controlled by the different gradient areas, so that catalysts can be optimally scanned, welding stress can be optimally distributed in drill bit procedures, and the tool is high in comprehensive abrasion resistance and impact resistance.
Description
Technical field
The utility model relates to a kind of wear resistant tools.
Background technology
Wear resistant tools is in machining, oil drilling, and various industry extensive use.For the probing of deep-sea and firm hard formation, especially there is its unique advantage.Reach high performance drilling results, PDC composite teeth need to have extremely strong combination property.These performances comprise abrasion resistance, shock-resistant, and high thermal stability.PDC composite teeth is comprised of two parts conventionally: hard alloy substrate and polycrystalline diamond wearing layer.For reaching high abrasion resistance, polycrystalline diamond need to be suppressed and form under HTHP, sees US Patent No. 3136615, and US3141746 burns till to such an extent that the common fragility of polycrystalline diamond is higher like this, and the probing application for HI high impact, has larger challenge.US Patent No. 4109737 discloses a kind of drill bit, and this application is to using WC carbide alloy (tungsten carbide) as matrix; US Patent No. 4518659 is further developed by catalyzer and is swept technique compacting high-performance composite sheet more.This catalyzer is metallic cobalt normally.
In HTHP pressing process, metallic cobalt is extruded from WC matrix, sweeps more diamond layer, forms high-strength diamond bonding, after this reduces temperature and pressure, completes sintering.Yet, because the diamond layer after sintering curing and WC hard alloy layer have larger thermal expansion coefficient difference, often cause cooled stretching residual stress.These residual stresss have greatly reduced the impact resistance of instrument, have limited the thickness of wearing layer, and practical formations drilled.
In order to control cooled stretching residual stress, a series of utility model is developed, and sees US Patent No. 4784023, US4972637, and US5486137, US6315652, US6933049 is round nonplanar interface.Yet these designs are not all considered interface variation catalyzer are swept to various impacts more.So further improve impact property, optimize interface and come the overstepping the bounds of propriety cloth of sweeping of proof stress and metallic cobalt to be just necessary very much.
Utility model content
The utility model is in order to solve the deficiencies in the prior art, a kind of wear resistant tools is provided, by designing different tilting zones, be controlled at the stretching residual stress of PDC instrument in HTHP pressing process, realize sweeping more of best catalyzer, and be welded on the stress distribution in drill bit process, the high abrasion that the instrument that reaches is comprehensive and impact resistance.
For solving the problems of the technologies described above, a kind of wear resistant tools that the utility model embodiment provides, adopts following technical scheme:
, comprising a matrix that has nonplanar interface, a continuous wearing layer forms interface between matrix and wearing layer, it is characterized in that, and the region of two inclinations is at least contained at described interface, and described region crosses at interface.
Ring-type cutting face and a top plane with center are contained in described interface.
Described tilting zone has different gradients, is respectively between 5 to 75 degree and between 0 to 90 degree.
Described wearing layer thickness in the annular outer radius detect thickness of difference scope between 0 to 5mm.
In described interface, the gradient of at least one tilting zone can change continuously, in the gradient that is less than the adjacent area of 1mm, changes and is less than 10 degree.
Described matrix is carbide alloy.
Described wearing layer is comprised of polycrystalline diamond cementing agent.
A kind of wear resistant tools that the utility model provides, by designing different tilting zones, be controlled at the stretching residual stress of PDC instrument in HTHP pressing process, realize sweeping more of best catalyzer, and be welded on the stress distribution in drill bit process, the high abrasion that the instrument that reaches is comprehensive and impact resistance.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of wear resistant tools described in the utility model embodiment.
Fig. 2 is the structural representation after the different inclined-planes of a kind of wear resistant tools described in the utility model embodiment change continuously.
The specific embodiment
A kind of wear resistant tools that the utility model embodiment provides, by designing different tilting zones, be controlled at the stretching residual stress of PDC instrument in HTHP pressing process, realize sweeping more of best catalyzer, and be welded on the stress distribution in drill bit process, the high abrasion that the instrument that reaches is comprehensive and impact resistance.
A kind of wear resistant tools the utility model embodiment being offered below in conjunction with accompanying drawing is described in detail.
As shown in Figure 1, 2, a kind of wear resistant tools that the utility model embodiment provides, comprise a matrix 1 that has nonplanar interface, a continuous wearing layer 2, between matrix 1 and wearing layer 2, form interface, it is characterized in that, described interface comprises the first tilting zone 3 and the second tilting zone 4, and described region crosses at interface.
Ring-type cutting face and a top plane with center are contained in described interface 3.
Described tilting zone 4 has different gradients, is respectively between 5 to 75 degree and between 0 to 90 degree.
Described wearing layer 2 thickness in the annular outer radius detect thickness of difference scope between 0 to 5mm.
In described interface 3, the gradient of at least one tilting zone 4 can change continuously, in the gradient that is less than the adjacent area of 1mm, changes and is less than 10 degree.
Described matrix 1 is carbide alloy.
Described wearing layer 2 is comprised of polycrystalline diamond cementing agent.
A kind of wear resistant tools that the utility model provides, by designing different tilting zones, be controlled at the stretching residual stress of PDC instrument in HTHP pressing process, realize sweeping more of best catalyzer, and be welded on the stress distribution in drill bit process, the high abrasion that the instrument that reaches is comprehensive and impact resistance.
The above; it is only the specific embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion by the described protection domain with claim.
Claims (7)
1. a wear resistant tools, comprises a matrix that has nonplanar interface, and a continuous wearing layer forms interface between matrix and wearing layer, it is characterized in that, the region of two inclinations is at least contained at described interface, and described region crosses at interface.
2. a kind of wear resistant tools according to claim 1, is characterized in that, ring-type cutting face and a top plane with center are contained in described interface.
3. a kind of wear resistant tools according to claim 1, is characterized in that, described tilting zone has different gradients, is respectively between 5 to 75 degree and between 0 to 90 degree.
4. a kind of wear resistant tools according to claim 1, is characterized in that, described wearing layer thickness in the annular outer radius detect thickness of difference scope between 0 to 5mm.
5. a kind of wear resistant tools according to claim 1, is characterized in that, in described interface, the gradient of at least one tilting zone can change continuously, in the gradient that is less than the adjacent area of 1mm, changes and is less than 10 degree.
6. a kind of wear resistant tools according to claim 1, is characterized in that, described matrix is carbide alloy.
7. a kind of wear resistant tools according to claim 1, is characterized in that, described wearing layer is comprised of polycrystalline diamond cementing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320472690.1U CN203394356U (en) | 2013-08-05 | 2013-08-05 | Abrasion-resistant tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320472690.1U CN203394356U (en) | 2013-08-05 | 2013-08-05 | Abrasion-resistant tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203394356U true CN203394356U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320472690.1U Expired - Fee Related CN203394356U (en) | 2013-08-05 | 2013-08-05 | Abrasion-resistant tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203394356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343391A (en) * | 2013-08-05 | 2015-02-11 | 常州深倍超硬材料有限公司 | Abrasion-resistant tool |
-
2013
- 2013-08-05 CN CN201320472690.1U patent/CN203394356U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343391A (en) * | 2013-08-05 | 2015-02-11 | 常州深倍超硬材料有限公司 | Abrasion-resistant tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20210805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |