CN202805794U - Diamond compact for brazing-type PCD-CVD (polycrystalline diamond-chemical vapor deposition) combined-type drilling - Google Patents
Diamond compact for brazing-type PCD-CVD (polycrystalline diamond-chemical vapor deposition) combined-type drilling Download PDFInfo
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- CN202805794U CN202805794U CN 201220278645 CN201220278645U CN202805794U CN 202805794 U CN202805794 U CN 202805794U CN 201220278645 CN201220278645 CN 201220278645 CN 201220278645 U CN201220278645 U CN 201220278645U CN 202805794 U CN202805794 U CN 202805794U
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Abstract
The utility model discloses a diamond compact for brazing-type PCD-CVD (polycrystalline diamond-chemical vapor deposition) combined-type drilling, and belongs to the technical field of super-hard material tools. A PCD diamond is provided with a hard alloy base layer; the surface of the PCD diamond is provided with CVD diamond layer with the thickness of over 0.05mm; and the other surface of the PCD diamond is brazed on a hard alloy cylinder. The diamond compact for brazing-type PCD-CVD combined-type drilling provided by the utility model has the advantages that a tool for drilling is easy to be brazed on a drill bit; the abrasion-resistant layer is high in rigidity, has good abrasion resistance, and has good surface temperature resistance; and the PCD-CVD compact is brazed firmly on the hard alloy cylinder.
Description
Technical field
The utility model relates to a kind of braze welding type PCD-CVD combined type probing diamond compact.Belong to the tool made of superhard material technical field.
Background technology
At present probing is the compact structure of polycrystalline diamond and carbide alloy with diamond compact, and PCD layer resistance to elevated temperatures (hereinafter to be referred as temperature tolerance) only has 700 ℃, even cobalt is taken off on the surface, its surperficial temperature tolerance also only reaches 800 ℃, is unfavorable for efficient operation.
Summary of the invention
In order to overcome existing deficiency, the utility model provides a kind of braze welding type PCD-CVD combined type probing diamond compact.
Diamond compact is used in a kind of braze welding type PCD-CVD combined type probing, and the PCD diamond has the carbide alloy bottom, and the adamantine superficial growth of PCD has the CVD diamond layer of the above thickness of 0.05mm, the adamantine another side of PCD and the welding of carbide alloy cylinder.
It is that the PCD diamond has the carbide alloy bottom that diamond compact, its structure are used in a kind of braze welding type PCD-CVD combined type probing, and there is the CVD diamond layer of the above thickness of 0.05mm on the adamantine surface of PCD, the adamantine another side of PCD and the welding of carbide alloy cylinder.
Selected PCD diamond can be the high temperature resistant PCD that contains one or more bonds such as titanium, silicon, boron, also can be the cobalt bond PCD that whole removing is removed the free state catalyst.
The adamantine another side of PCD and carbide alloy cylinder welded structure are the plane, also can be curved surfaces; Or male and fomale(M﹠F) or step surface;
CVD diamond layer upper surface cylindrical crest line chamfering.
Outward appearance of the present utility model and size and PDC composite sheet are similar, and plurality of specifications can be arranged.
The method for manufacturing of the said goods can be dual mode:
1) first at PCD superficial growth CVD diamond, is welded on again the end face (first-selection) of carbide alloy cylinder;
2) PCD is welded on first the end face of carbide alloy cylinder, and then at PCD superficial growth CVD diamond.
The utility model has the advantages that for probing and use instrument that be easy to and the drill bit welding, wearing layer hardness is high, good, the surperficial temperature tolerance of wearability can reach 1000 ℃, PCD-CVD composite sheet and carbide alloy cylinder firm welding.
Description of drawings
When considered in conjunction with the accompanying drawings, by the following detailed description of reference, can more completely understand better the utility model and learn easily wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, consist of a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model, such as figure wherein:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of one of the utility model embodiment.
Fig. 3 is two the structural representation of the utility model embodiment.
Fig. 4 is three the structural representation of the utility model embodiment.
Below in conjunction with drawings and Examples the utility model is further specified.
The specific embodiment
Obviously, the many modifications and variations done based on aim of the present utility model of those skilled in the art belong to protection domain of the present utility model.
Embodiment 1: as shown in the figure,
Diamond compact is used in a kind of braze welding type PCD-CVD combined type probing, and its structure is:
1, the carbide alloy bottom is arranged;
2, resistant to elevated temperatures PCD diamond, the CVD diamond layer of the above thickness of superficial growth 0.05mm;
3, the PCD adamantine one side of CVD of not growing is welded with carbide alloy cylinder end face;
4, weld interface can be the plane, also can be curved surface.For example can be male and fomale(M﹠F) or step surface.
5, finished product outward appearance and size and PDC composite sheet are similar, and plurality of specifications can be arranged.
6, diamond upper surface cylindrical crest line chamfering.
A kind of braze welding type PCD-CVD combined type probing diamond compact, its structure is that PCD diamond 3 has the carbide alloy bottom, the superficial growth of PCD diamond 3 has the CVD diamond layer 2 of the above thickness of 0.05mm, the another side of PCD diamond 3 and the welding of carbide alloy cylinder;
The another side of PCD diamond 3 and carbide alloy cylinder welded structure are plane 4, also can be curved surfaces 5; Or male and fomale(M﹠F) 7 or step surface 6;
CVD diamond layer 2 upper surface cylindrical crest line chamferings.
As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection domain of the present utility model.
Claims (3)
1. a braze welding type PCD-CVD combined type is drilled and is used diamond compact, it is characterized in that the PCD diamond has the carbide alloy bottom, there is the CVD diamond layer of the above thickness of 0.05mm on the adamantine surface of PCD, the adamantine another side of PCD and the welding of carbide alloy cylinder.
2. diamond compact is used in a kind of braze welding type PCD-CVD combined type probing according to claim 1, it is characterized in that the adamantine another side of PCD and carbide alloy cylinder welded structure are the plane, or curved surface; Or male and fomale(M﹠F) or step surface.
3. diamond compact is used in a kind of braze welding type PCD-CVD combined type probing according to claim 1 and 2, it is characterized in that CVD diamond layer upper surface cylindrical crest line chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278645 CN202805794U (en) | 2012-06-13 | 2012-06-13 | Diamond compact for brazing-type PCD-CVD (polycrystalline diamond-chemical vapor deposition) combined-type drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278645 CN202805794U (en) | 2012-06-13 | 2012-06-13 | Diamond compact for brazing-type PCD-CVD (polycrystalline diamond-chemical vapor deposition) combined-type drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202805794U true CN202805794U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220278645 Expired - Fee Related CN202805794U (en) | 2012-06-13 | 2012-06-13 | Diamond compact for brazing-type PCD-CVD (polycrystalline diamond-chemical vapor deposition) combined-type drilling |
Country Status (1)
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| CN (1) | CN202805794U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696699A (en) * | 2014-01-08 | 2014-04-02 | 弘元超硬材料(河南)有限公司 | Cobalt-free polycrystalline diamond compact (PDC) drill bit and preparation technology thereof |
| CN105750674A (en) * | 2016-05-09 | 2016-07-13 | 廊坊西波尔钻石技术有限公司 | Matrix and welding method for matrix and diamond piece |
| CN106795627A (en) * | 2014-08-01 | 2017-05-31 | 哈利伯顿能源服务公司 | The modified polycrystalline diamond of chemical vapor deposition |
| CN110125627A (en) * | 2019-06-19 | 2019-08-16 | 廊坊西波尔钻石技术有限公司 | A kind of PCD and hard alloy composite drill head and its manufacturing method |
| CN111364920A (en) * | 2020-02-26 | 2020-07-03 | 中国石油大学(北京) | Step type polycrystalline diamond compact and drill bit provided with same |
-
2012
- 2012-06-13 CN CN 201220278645 patent/CN202805794U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696699A (en) * | 2014-01-08 | 2014-04-02 | 弘元超硬材料(河南)有限公司 | Cobalt-free polycrystalline diamond compact (PDC) drill bit and preparation technology thereof |
| CN106795627A (en) * | 2014-08-01 | 2017-05-31 | 哈利伯顿能源服务公司 | The modified polycrystalline diamond of chemical vapor deposition |
| CN106795627B (en) * | 2014-08-01 | 2019-06-21 | 哈利伯顿能源服务公司 | The modified polycrystalline diamond of chemical vapor deposition |
| CN105750674A (en) * | 2016-05-09 | 2016-07-13 | 廊坊西波尔钻石技术有限公司 | Matrix and welding method for matrix and diamond piece |
| CN105750674B (en) * | 2016-05-09 | 2019-07-16 | 廊坊西波尔钻石技术有限公司 | A kind of matrix and with diamond chip welding method |
| CN110125627A (en) * | 2019-06-19 | 2019-08-16 | 廊坊西波尔钻石技术有限公司 | A kind of PCD and hard alloy composite drill head and its manufacturing method |
| CN111364920A (en) * | 2020-02-26 | 2020-07-03 | 中国石油大学(北京) | Step type polycrystalline diamond compact and drill bit provided with same |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20200613 |