CN201272065Y - Diamond sandwich cemented carbide composite sheet - Google Patents
Diamond sandwich cemented carbide composite sheet Download PDFInfo
- Publication number
- CN201272065Y CN201272065Y CNU2008201491886U CN200820149188U CN201272065Y CN 201272065 Y CN201272065 Y CN 201272065Y CN U2008201491886 U CNU2008201491886 U CN U2008201491886U CN 200820149188 U CN200820149188 U CN 200820149188U CN 201272065 Y CN201272065 Y CN 201272065Y
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- China
- Prior art keywords
- hard alloy
- diamond
- diamond layer
- layer
- composite sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a diamond interlayer hard alloy composite sheet which comprises a diamond layer and two hard alloy matrix layers, wherein, the diamond layer is positioned between the two hard alloy matrix layers. By adopting the technical scheme, as both sides of the diamond layer are respectively provided with one hard alloy matrix layer with certain thickness, the structure is reasonable, and the abrasion-resistance capability of the diamond layer is greatly enhanced; the shock-resistance capability is greatly enhanced by the hard alloy matrix layers on the two sides.
Description
Technical field
The utility model relates to a kind of superhard material, especially relates to a kind of diamond interlayer hard alloy complex sheet that comprises two hard alloy substrate layers.
Background technology
Diamond hard alloy complex sheet is after being added certain bond and hard alloy substrate and fitted together by diamond dust, at the composite superhard material that sintering forms under the high pressure high temperature environment on the special diamond hydraulic press, it is made of one deck polycrystalline diamond layer and hard alloy substrate layer.Because polycrystalline diamond layer hardness high-wearing feature is good, add the excellent toughness and the solderability of hard alloy substrate, make its premium properties that has diamond and carbide alloy concurrently, be widely used as cutting element-brill tooth on the oil bit and the cutting tip on the cutter.
Because the brill tooth during drilling well on the drill bit will bear the powerful cutting resistance in stratum, frictional resistance and impulsive force, therefore require diamond hard alloy complex sheet to have very high hardness, wearability, hear resistance and impact resilience.The diamond end face of diamond compact brill tooth mostly is the plane greatly at present, bore tooth with these diamond compacts and make drill bit, at the drilling well initial stage because to bore the impetus of tooth little, the rate of penetration of drill bit produces strong wearing and tearing even fragmentation than very fast along with boring increment face working portion, and the contact area of boring tooth and rock is also strengthening, it is more and more blunt to show as drill bit, the rate of penetration of drill bit is slack-off, thereby influences the drilling depth of drill bit, drilling efficiency and the scope of application.
In existing technology, usually be that a side of diamond layer has the hard alloy substrate layer and is used for welding, but be worn easily and impact, greatly influenced service efficiency.
Summary of the invention
The purpose of this utility model provide a kind of diamond interlayer hard alloy complex sheet that can improve shock resistance and wear resistance.
For achieving the above object, the utility model is by the following technical solutions:
The utility model comprises diamond layer and two hard alloy substrate layers, and above-mentioned diamond layer is positioned at the centre of two hard alloy substrate layers.
The thickness of above-mentioned diamond layer is 1～3mm.
Two above-mentioned carbide matrix bulk layer thickness are identical, are 2～5mm.
Adopt the utility model of technique scheme, owing to be equipped with certain thickness hard alloy substrate layer in the both sides of diamond layer, make its structure more reasonable, the diamond layer antiwear property is greatly improved, and the hard alloy substrate layer of both sides setting makes that also impact resistance improves greatly in addition.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
The specific embodiment
As shown in Figure 1, the utility model is included in diamond layer 1 and two hard alloy substrate layers 2 that sintering forms under the high pressure high temperature condition, hard alloy substrate layer 2 is the carbide of IVB, VB, group vib metal, is technology well known to those of ordinary skill in the art.
Above-mentioned diamond layer 1 is positioned at the centre of two hard alloy substrate layers 2, and the thickness of diamond layer 1 is 1～3mm, can be set at 1mm, 2mm or 3mm or the like according to the real work needs.Two hard alloy substrate layer 2 thickness are identical, are 2～5mm.Also can be according to the real work needs, with two of being designed to that thickness does not wait of the hard alloy substrate layer 2 of both sides, it can be 2mm, 3mm, 4mm or 5mm or the like.
Claims (3)
1, a kind of diamond interlayer hard alloy complex sheet is characterized in that: it comprises diamond layer (1) and two hard alloy substrate layers (2), and described diamond layer (1) is positioned at the centre of two hard alloy substrate layers (2).
2, diamond interlayer hard alloy complex sheet according to claim 1, it is characterized in that: the thickness of described diamond layer (1) is 1～3mm.
3, diamond interlayer hard alloy complex sheet according to claim 1 and 2, it is characterized in that: described two hard alloy substrate layers (2) thickness is identical, is 2～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201491886U CN201272065Y (en) | 2008-09-11 | 2008-09-11 | Diamond sandwich cemented carbide composite sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201491886U CN201272065Y (en) | 2008-09-11 | 2008-09-11 | Diamond sandwich cemented carbide composite sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201272065Y true CN201272065Y (en) | 2009-07-15 |
Family
ID=40882417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201491886U Expired - Fee Related CN201272065Y (en) | 2008-09-11 | 2008-09-11 | Diamond sandwich cemented carbide composite sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201272065Y (en) |
-
2008
- 2008-09-11 CN CNU2008201491886U patent/CN201272065Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20130911 |