CN101737011A - Sintering mold of tire body polycrystalline diamond compact bit - Google Patents
Sintering mold of tire body polycrystalline diamond compact bit Download PDFInfo
- Publication number
- CN101737011A CN101737011A CN200810172488A CN200810172488A CN101737011A CN 101737011 A CN101737011 A CN 101737011A CN 200810172488 A CN200810172488 A CN 200810172488A CN 200810172488 A CN200810172488 A CN 200810172488A CN 101737011 A CN101737011 A CN 101737011A
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- bit
- tooth
- sintering
- graphite
- polycrystalline diamond
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Abstract
The invention discloses a sintering mold of bits for petroleum, geologic and coal drilling, in particular to the sintering mold of a tire body polycrystalline diamond compact (PDC) bit. In the invention, a sintering basement membrane of the sintering mold of the tire body PDC bit is provided with graphite substitute teeth, and the heights and the angles of the graphite substitute teeth are adjusted to control spatial structure parameters of the bit; and the tooth distribution density and the scraper shape of the PDC bit are controlled by adjusting the arrangement shape of the graphite substitute teeth on the sintering basement membrane.
Description
Technical field
The invention discloses the sintering mould processing method of a kind of oil, geology, coal drilling well usefulness drill bit, more particularly, disclose a kind of base polycrystalline diamond composite piece drill-bit sintering mould.
Background technology
The space structures parameter control technology of PDC drill bit (composite polycrystal-diamond) cutting teeth is to weigh the leading indicator of PDC drill bit mould quality.The space structures of PDC drill bit is determined by three basic parameters: the side corner of the cutting angle of cutting teeth, cutting teeth, the height of protrusion of cutting teeth.As shown in Figure 1, the cutting angle 1 of cutting teeth is that cutting teeth is around angle of straight horizontal radial line rotation, the angle that the cutting teeth cutting plane is become with the cutting teeth axis; The height of protrusion 2 of cutting teeth is the height of cutting teeth at fixed outer body.As shown in Figure 2, the side corner 1 of cutting teeth is the line of cutting teeth center and drill bit center of rotation and the angle between the cutting teeth horizontal diameter.
Known PDC drill bit structure extends a sheet of drill bit wing 2 at bit body 1 head substantially as shown in Figure 3, sets in advance the pit of some indents on the end face of drill bit wing 2.The cutting teeth of PDC drill bit can be divided into two parts: welding portion 3 and go out blade and divide 4.The geomery of this pit is corresponding with the welding portion of cutting teeth 3, the welding portion 3 of cutting teeth is embedded in the pit welds, and the cutting teeth of drill bit firmly is fixed on the end face of drill bit wing 2.
Above-mentioned die processing method sees also Fig. 4, be to utilize five interlock milling machines on tool 2 at the bottom of the prefabricated drill-bit sintering, to mill out the locus and the shape of PDC bit cutting tooth, to stick in the pit that milling goes out with PDC cutting teeth cutting teeth graphite consistent in shape and size replacement block 1 then and locate, thereby form the PDC drill-bit sintering mould.There is following problem in this method: from machining angle, must utilize five interlock milling machine processing, the processing technology complexity is simultaneously because drill bit mold shape complexity, the cutting teeth at some position promptly uses five interlock milling machines also can't process, so machining accuracy is difficult to control.If do not adopt the CNC milling machine processing mold of five interlocks, then the locus of cutting teeth is difficult to guarantee precision, and the processing technology complexity.The drill bit design angle, drill bit shape, cloth tooth density all are restricted; This in addition processing method one mold can only be processed a drill bit, and stock utilization is low, is unfavorable for producing in batches, causes the huge waste of material, and the graphite jig of scrapping in a large number simultaneously pollutes environment.
The present invention substitutes processing removal on the tooth with the blade branch that goes out of cutting teeth at graphite, forms the structure as Fig. 6, and the milling height 1 that graphite substitutes tooth is the height of protrusion of cutting teeth, and milling angle 2 is the cutting angle of cutting teeth.Draw in the position that graphite is substituted tooth according to designing requirement on the graphite bed die, the side corner is determined by scribing position.Graphite substitutes the cloth tooth density and the blade geometry of the spread geometry control PDC drill bit of tooth on bed die.Compare with file 1 disclosed method, the present invention is for PDC bit cutting tooth space structures parameter control accuracy height, and the employing method that graphite substitutes tooth has more creativeness, and the processing method of sintering mold is simple and easy to use.
Summary of the invention
Base polycrystalline diamond composite piece drill-bit sintering mould among the present invention, the cutting teeth welding portion adopts graphite to substitute the method for tooth on the sintering counterdie of drill-bit sintering mould, technology is simple, can guarantee the accuracy of the space structures parameter of drill bit, mould can help producing in batches with repeatedly using.
A kind of base polycrystalline diamond composite piece drill-bit sintering mould adopts graphite to substitute tooth on the sintering counterdie of described base polycrystalline diamond composite piece drill-bit sintering mould, by adjusting the space structures parameter that graphite substitutes the height and the angle control drill bit of tooth; By adjusting cloth tooth density and the blade geometry that graphite substitutes the spread geometry control drill bit of tooth on the sintering bed die.
The consistent size of the height of the alternative tooth of described graphite and the height of protrusion of bit cutting tooth.
The angle of the angle of the alternative tooth of described graphite and the cutting angle of bit cutting tooth, side corner is consistent.
Described graphite substitutes the cloth tooth density and the blade geometry of the spread geometry control drill bit of tooth on the sintering bed die.
Description of drawings
Fig. 1 is the schematic diagram of PDC bit cutting tooth cutting angle and height of protrusion.
Fig. 2 is the schematic diagram of PDC bit cutting flank corner.
Fig. 3 is the schematic diagram of present PDC drill bit and cutting teeth.
Fig. 4 is the schematic diagram of traditional diamond-making technique processing drill-bit sintering mould.
Fig. 5 is the schematic diagram of drill-bit sintering mould of the present invention.
Fig. 6 substitutes the tooth schematic diagram for graphite of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment among the present invention is described in further detail.
Shown in 5, draw according to the position that drill bit design requires graphite to be substituted tooth on drill-bit sintering bed die 2, the side corner is determined by scribing position, again the graphite of producing is substituted tooth 1 and sticks on the mark position, form the structure of Fig. 5, promptly finish the processing of drill bit mould.
As shown in Figure 6, substitute in the process of tooth at graphite, the milling height 1 that graphite substitutes tooth is the height of protrusion of cutting teeth, and the milling angle 2 that graphite substitutes tooth is the cutting angle of cutting teeth.
At last illustrated is, above embodiment only is used to illustrate technical scheme of the present invention and is unrestricted, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (4)
1. base polycrystalline diamond composite piece drill-bit sintering mould, it is characterized in that: adopt graphite to substitute tooth on the sintering counterdie of described base polycrystalline diamond composite piece drill-bit sintering mould, by adjusting the space structures parameter that graphite substitutes the height and the angle control drill bit of tooth; By adjusting cloth tooth density and the blade geometry that graphite substitutes the spread geometry control drill bit of tooth on the sintering bed die.
2. according to the base polycrystalline diamond composite piece drill-bit sintering mould described in the claim 1, it is characterized in that: the consistent size of the height of the alternative tooth of described graphite and the height of protrusion of bit cutting tooth.
3. according to the base polycrystalline diamond composite piece drill-bit sintering mould described in the claim 1, it is characterized in that: the angle of the angle of the alternative tooth of described graphite and the cutting angle of bit cutting tooth, side corner is consistent.
4. according to the base polycrystalline diamond composite piece drill-bit sintering mould described in the claim 1, it is characterized in that: described graphite substitutes the cloth tooth density and the blade geometry of the spread geometry control drill bit of tooth on the sintering bed die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810172488A CN101737011A (en) | 2008-11-12 | 2008-11-12 | Sintering mold of tire body polycrystalline diamond compact bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810172488A CN101737011A (en) | 2008-11-12 | 2008-11-12 | Sintering mold of tire body polycrystalline diamond compact bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101737011A true CN101737011A (en) | 2010-06-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810172488A Pending CN101737011A (en) | 2008-11-12 | 2008-11-12 | Sintering mold of tire body polycrystalline diamond compact bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101737011A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663446A (en) * | 2013-12-17 | 2014-03-26 | 河南晶锐超硬材料有限公司 | PDC (polycrystalline diamond compact) leaching device |
| CN105041224A (en) * | 2015-07-01 | 2015-11-11 | 中国石油大学(北京) | Polycrystalline diamond compact and application thereof |
| CN105849354A (en) * | 2013-12-10 | 2016-08-10 | 哈里伯顿能源服务公司 | Vented blank for producing a matrix bit body |
| CN111502551A (en) * | 2020-04-20 | 2020-08-07 | 中石化江钻石油机械有限公司 | Matrix and wing mixed drill bit and preparation method thereof |
| CN116652190A (en) * | 2023-07-28 | 2023-08-29 | 金石钻探(唐山)股份有限公司 | Novel die for diamond drill bit and manufacturing method |
-
2008
- 2008-11-12 CN CN200810172488A patent/CN101737011A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105849354A (en) * | 2013-12-10 | 2016-08-10 | 哈里伯顿能源服务公司 | Vented blank for producing a matrix bit body |
| CN105849354B (en) * | 2013-12-10 | 2018-04-06 | 哈里伯顿能源服务公司 | Manufacture the ventilation base substrate of matrix bit body |
| US10029300B2 (en) | 2013-12-10 | 2018-07-24 | Halliburton Energy Services, Inc. | Vented blank for producing a matrix bit body |
| CN103663446A (en) * | 2013-12-17 | 2014-03-26 | 河南晶锐超硬材料有限公司 | PDC (polycrystalline diamond compact) leaching device |
| CN103663446B (en) * | 2013-12-17 | 2015-07-15 | 河南晶锐超硬材料有限公司 | PDC (polycrystalline diamond compact) leaching device |
| CN105041224A (en) * | 2015-07-01 | 2015-11-11 | 中国石油大学(北京) | Polycrystalline diamond compact and application thereof |
| CN105041224B (en) * | 2015-07-01 | 2017-12-01 | 中国石油大学(北京) | A kind of composite polycrystal-diamond and its application |
| CN111502551A (en) * | 2020-04-20 | 2020-08-07 | 中石化江钻石油机械有限公司 | Matrix and wing mixed drill bit and preparation method thereof |
| CN111502551B (en) * | 2020-04-20 | 2021-07-30 | 中石化江钻石油机械有限公司 | Matrix and wing mixed drill bit and preparation method thereof |
| CN116652190A (en) * | 2023-07-28 | 2023-08-29 | 金石钻探(唐山)股份有限公司 | Novel die for diamond drill bit and manufacturing method |
| CN116652190B (en) * | 2023-07-28 | 2023-10-03 | 金石钻探(唐山)股份有限公司 | Novel die for diamond drill bit and manufacturing method |
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Application publication date: 20100616 |