CN103418789B - A kind of porous mold shaping for hot pressing PDC bit matrix powder - Google Patents
A kind of porous mold shaping for hot pressing PDC bit matrix powder Download PDFInfo
- Publication number
- CN103418789B CN103418789B CN201310344018.9A CN201310344018A CN103418789B CN 103418789 B CN103418789 B CN 103418789B CN 201310344018 A CN201310344018 A CN 201310344018A CN 103418789 B CN103418789 B CN 103418789B
- Authority
- CN
- China
- Prior art keywords
- graphite
- cylindrical hole
- column
- hot pressing
- bit matrix
- 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.)
- Active
Links
Landscapes
- Powder Metallurgy (AREA)
Abstract
The invention provides a kind of porous mold shaping for hot pressing PDC bit matrix powder, at least comprise graphite cover plate, graphite column, the main mould of graphite and graphite bed die, described graphite bed die is tabular, its top place is provided with the convex edge of a circle towards projection, described convex edge surrounds a groove, the main mould of graphite is fixed in groove, and the main mould of described graphite is evenly distributed with vertical cylindrical hole; Described graphite column is cylindric, its quantity is corresponding with cylindrical hole, and graphite column is positioned at cylindrical hole and can moves up and down along cylindrical hole, gap is there is between graphite column and cylindrical hole, the width in described gap is 0.1 ~ 0.3mm, described graphite cover plate is positioned at the top of graphite column, is connected with graphite column.This mould is used for hot pressing PDC bit matrix powder test specimen, can disposable making four test specimens, and the demoulding is simple, after these test specimens are carried out mechanical test, draws the mechanical index such as hardness, intensity, thus preferred PDC Based On Back Propagating Algorithm For Bit.
Description
Technical field
The invention provides a kind of porous mold shaping for hot pressing PDC bit matrix powder, specifically for processing hot pressing PDC bit matrix, belong to mould applications.
Background technology
When manufacturing tyre case PDC drill by pressure sintering, in order to obtain the tyre case PDC drill of high-quality, while guarantee PDC composite sheet performance is good, body piles must be made to have high rigidity, high strength and high-wearing feature, thus make body piles can support the permanent work of PDC composite sheet, can not cause because generation body piles first lost efficacy the phenomenon that PDC drill bit lost efficacy.
The formula of carcass is the necessary condition obtaining high-quality PDC bit matrix simultaneously, needs to carry out a large amount of carcass tests, compares the various mechanical properties of carcass, thus preferred carcass, therefore need to manufacture a large amount of carcass test specimens.
But there is no a kind of effective utensil at present, can meet and it can be made to possess high rigidity, high strength and high-wearing feature by compressing for tyre case PDC drill; A large amount of contrast parallel tests can be carried out to the formula of carcass again simultaneously.
Summary of the invention
The invention provides a kind of porous mold shaping for hot pressing PDC bit matrix powder, this mould is used for hot pressing PDC bit matrix powder test specimen, can disposable making four test specimens, the demoulding is simple, after these test specimens are carried out mechanical test, draw the mechanical index such as hardness, intensity, thus preferred PDC Based On Back Propagating Algorithm For Bit.
Realizing the technical scheme that above-mentioned purpose of the present invention adopts is:
A kind of porous mold shaping for hot pressing PDC bit matrix powder, at least comprise graphite cover plate, graphite column, the main mould of graphite and graphite bed die, described graphite bed die is tabular, its top place is provided with the convex edge of a circle towards projection, described convex edge surrounds a groove, the main mould of graphite is fixed in groove, and the main mould of described graphite is evenly distributed with vertical cylindrical hole; Described graphite column is cylindric, its quantity is corresponding with cylindrical hole, and graphite column is positioned at cylindrical hole and can moves up and down along cylindrical hole, gap is there is between graphite column and cylindrical hole, the width in described gap is 0.1 ~ 0.3mm, described graphite cover plate is positioned at the top of graphite column, is connected with graphite column.
Cylindrical hole on the main mould of described graphite is through hole, and the diameter of cylindrical hole and identical length are together, and cylindrical hole is rectangular distribution.
Described cylindrical hole is provided with 4; Described graphite column is provided with 4.
The diameter of described graphite column and identical length with, and the width in the gap existed between graphite column and cylindrical hole is 0.2mm.
The porous mold shaping for hot pressing PDC bit matrix powder provided by the invention, owing to there is gap between graphite column and cylindrical hole, is therefore convenient to gas and discharges, thus make test specimen closely knit in the process of die-filling and hot pressing; Simultaneously graphite bed die and the main mould of graphite separable, the cylindrical hole on the main mould of graphite is through hole, therefore after having fired, is convenient to the carcass demoulding, and therefore this mould can Reusability, can save mould resource.Mould structure provided by the present invention is simple, easy to use, and once compacting can make four test specimens, and production efficiency is high, can carry out parallel test to study and the formula of preferred carcass.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of the porous mold shaping for hot pressing PDC bit matrix powder provided by the invention;
Fig. 2 is the structure chart of the main mould of graphite;
In figure: 1-graphite cover plate, 2-graphite column, the main mould of 3-graphite, 4-graphite bed die, 5-cylindrical hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed specific description is done to the present invention, but protection scope of the present invention is not limited to following examples.
The structure of the porous mold shaping for hot pressing PDC bit matrix powder provided by the invention as shown in Figure 1, comprise graphite cover plate 1, graphite column 2, the main mould 3 of graphite and graphite bed die 4, graphite bed die 4 is tabular, its top place is provided with the convex edge of a circle towards projection, described convex edge surrounds a groove, and the main mould 3 of graphite is fixed in groove.
The structure of the main mould 3 of described graphite as shown in Figure 2, it is evenly distributed with vertical cylindrical hole 5; Cylindrical hole 5 on the main mould 3 of described graphite is through hole, and the diameter of cylindrical hole 5 and identical length are together, and cylindrical hole 5 is in rectangular distribution.Described graphite column 2 is in cylindric, and its quantity is corresponding with cylindrical hole 5, and in the present embodiment, cylindrical hole 5 is provided with four, and corresponding graphite column 2 is also provided with four.Graphite column 2 is positioned at cylindrical hole 5 and can moves up and down along cylindrical hole 5, the diameter of graphite column 2 is slightly less than the diameter of cylindrical hole 5, therefore there is gap between graphite column 2 and cylindrical hole 5, the width in described gap is 0.1 ~ 0.3mm, the width in gap is 0.2 mm in the present embodiment, discharges so that die-filling with the gas in the process of hot pressing.Described graphite cover plate 1 is positioned at the top of graphite column 2, is connected with graphite column 2.
The operation principle of the porous mold that the present embodiment provides is as follows: first each component of processing mold on Digit Control Machine Tool, wherein: graphite cover board size is: length × wide × height=118mm × 118mm × 20mm, four graphite columns are of a size of: diameter × height=Φ 31.8mm × 36mm, in the main mould of graphite, four straight holes are of a size of: diameter × height=Φ 32mm × 72mm, and the proportionate relationship of other component is with reference to accompanying drawing 1 and accompanying drawing 2.The formula of configuration PDC bit matrix powder is as shown in table 1, and after weighing, fully mixing, is divided into four parts with electronic balance, be distributed into four holes in the main mould of graphite and shake up, four graphite columns are pressed on metal powder, four graphite capitals press graphite cover plate, namely completes die-filling.Then be placed on hot-press sintering equipment and sinter, scenario earthquake (being up to 950 DEG C), pressure curve (being up to 25KN), after formula sintering in table 1, then repeats said process, again die-filling according to formula 2, keep temperature and pressure is constant carries out hot pressed sintering, obtain eight test specimens altogether, the test specimen drawn can carry out a series of mechanical test, be convenient to carry out Performance comparision, thus the formula of preferred tyre case PDC drill.
Table 1 matrix formula
Claims (4)
1. one kind for the shaping porous mold of hot pressing PDC bit matrix powder, it is characterized in that: at least comprise graphite cover plate, graphite column, the main mould of graphite and graphite bed die, described graphite bed die is tabular, its top place is provided with the convex edge of a circle towards projection, described convex edge surrounds a groove, the main mould of graphite is fixed in groove, and the main mould of described graphite is evenly distributed with vertical cylindrical hole; Described graphite column is cylindric, its quantity is corresponding with cylindrical hole, and graphite column is positioned at cylindrical hole and can moves up and down along cylindrical hole, gap is there is between graphite column and cylindrical hole, the width in described gap is 0.1 ~ 0.3mm, described graphite cover plate is positioned at the top of graphite column, is connected with graphite column; Cylindrical hole on the main mould of described graphite is through hole, and the diameter of cylindrical hole and identical length are together, and cylindrical hole is rectangular distribution.
2. the porous mold shaping for hot pressing PDC bit matrix powder according to claim 1, is characterized in that: described cylindrical hole is provided with four.
3. the porous mold shaping for hot pressing PDC bit matrix powder according to claim 1, is characterized in that: the diameter of described graphite column and identical length with, and the width in the gap existed between graphite column and cylindrical hole is 0.2mm.
4. the porous mold shaping for hot pressing PDC bit matrix powder according to claim 2, is characterized in that: described graphite column is provided with four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310344018.9A CN103418789B (en) | 2013-08-08 | 2013-08-08 | A kind of porous mold shaping for hot pressing PDC bit matrix powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310344018.9A CN103418789B (en) | 2013-08-08 | 2013-08-08 | A kind of porous mold shaping for hot pressing PDC bit matrix powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103418789A CN103418789A (en) | 2013-12-04 |
| CN103418789B true CN103418789B (en) | 2015-09-02 |
Family
ID=49644453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310344018.9A Active CN103418789B (en) | 2013-08-08 | 2013-08-08 | A kind of porous mold shaping for hot pressing PDC bit matrix powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103418789B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737963A (en) * | 2013-12-31 | 2014-04-23 | 昆山优磁电子有限公司 | Magnetic core pressing mould |
| CN103692145A (en) * | 2014-01-08 | 2014-04-02 | 地质矿产部无锡钻探工具厂 | Diamond drill bit repairing device and method |
| CN105562692B (en) * | 2016-03-03 | 2018-12-25 | 中国科学院物理研究所 | A kind of sintering mold |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726622A (en) * | 1971-08-20 | 1973-04-10 | Wolverine Pentronix | Compacting apparatus |
| US3890413A (en) * | 1974-08-15 | 1975-06-17 | Hydramet American Inc | Apparatus and method for compacting particulate materials |
| CN1059304A (en) * | 1991-10-21 | 1992-03-11 | 任现合 | Make the method for diamond segment |
| CN2512568Y (en) * | 2001-11-12 | 2002-09-25 | 山富机械厂有限公司 | Wood filings thermal press for ming mould with air exhaust effect |
| CN1566528A (en) * | 2003-07-04 | 2005-01-19 | 姜陆平 | Secondary heat setting process for paper-mould products and heat setting mould used for the process |
| CN201260955Y (en) * | 2008-07-24 | 2009-06-24 | 泉州众志金刚石工具有限公司 | Cold side compression molding mold of laser welding saw blade diamond glazier head with trough |
| CN201446224U (en) * | 2009-06-23 | 2010-05-05 | 诸城市同翔机械有限公司 | Powder metallurgy die forming upper plunger |
| CN202070763U (en) * | 2011-04-21 | 2011-12-14 | 广元博锐精工科技有限公司 | Improved structure of multi-cavity female die |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03211204A (en) * | 1990-01-12 | 1991-09-17 | Riken Corp | Method and die for hot pressing |
| JP4797283B2 (en) * | 2001-06-07 | 2011-10-19 | 日立金属株式会社 | Powder press apparatus and powder press method |
| JP2007098424A (en) * | 2005-10-03 | 2007-04-19 | Tdk Corp | Molding device in magnetic field, die and method for producing rare earth sintered magnet |
-
2013
- 2013-08-08 CN CN201310344018.9A patent/CN103418789B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726622A (en) * | 1971-08-20 | 1973-04-10 | Wolverine Pentronix | Compacting apparatus |
| US3890413A (en) * | 1974-08-15 | 1975-06-17 | Hydramet American Inc | Apparatus and method for compacting particulate materials |
| CN1059304A (en) * | 1991-10-21 | 1992-03-11 | 任现合 | Make the method for diamond segment |
| CN2512568Y (en) * | 2001-11-12 | 2002-09-25 | 山富机械厂有限公司 | Wood filings thermal press for ming mould with air exhaust effect |
| CN1566528A (en) * | 2003-07-04 | 2005-01-19 | 姜陆平 | Secondary heat setting process for paper-mould products and heat setting mould used for the process |
| CN201260955Y (en) * | 2008-07-24 | 2009-06-24 | 泉州众志金刚石工具有限公司 | Cold side compression molding mold of laser welding saw blade diamond glazier head with trough |
| CN201446224U (en) * | 2009-06-23 | 2010-05-05 | 诸城市同翔机械有限公司 | Powder metallurgy die forming upper plunger |
| CN202070763U (en) * | 2011-04-21 | 2011-12-14 | 广元博锐精工科技有限公司 | Improved structure of multi-cavity female die |
Non-Patent Citations (2)
| Title |
|---|
| 方啸虎等.热压法.《超硬材料科学与技术(下卷)》.1998, * |
| 胎体式PDC钻头基础模具设计与成型工艺的研究;郭东琼;《胎体式PDC钻头基础模具设计与成型工艺的研究》;20071215(第6期);第A011-218页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103418789A (en) | 2013-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103418789B (en) | A kind of porous mold shaping for hot pressing PDC bit matrix powder | |
| CN203887228U (en) | Mold for preparing powder metallurgy sintering materials of various ratios | |
| CN205185172U (en) | Mould convenient to adjust | |
| CN203356590U (en) | Pressing die for neodymium iron boron material | |
| CN204724849U (en) | A kind of neodymium-iron-boron post mould | |
| CN208758449U (en) | A kind of manufacturing device of auto parts and components mold | |
| CN206253530U (en) | Shaping mould head part plate power source new device | |
| CN109047451A (en) | A kind of machining hole punched device | |
| JP2016172415A (en) | Hot press apparatus and method for manufacturing sintered body | |
| CN211807361U (en) | Friction block pressing device | |
| CN208116544U (en) | A kind of fixation device of stamping die pedestal | |
| CN103611826A (en) | Two-section-type gas-liquid boosting riveting mechanism of automobile fan motor cover riveting machine | |
| CN209814566U (en) | High-temperature-resistant backing plate | |
| CN205183776U (en) | Prevent vacuum hot -pressing sintering mould of carburization | |
| CN205364160U (en) | Preparation of adj. tabular ceramic unburned bricks is with bent mould of proof warp | |
| CN202343946U (en) | Sintering fixture for metal powder injection molding | |
| CN102306556B (en) | Liquid sucking core component of AMTEC (alkali metal thermoelectric converter) and manufacturing method thereof | |
| CN203140917U (en) | Jig bottom die for hot press | |
| CN105415743B (en) | Shaping mechanism for powder metallurgy spacer products | |
| CN105382095A (en) | Spring self-locking type stamping die | |
| CN205393307U (en) | Portable chassis exterior press die | |
| CN207357847U (en) | A kind of U-shaped apparatus for bending base | |
| CN205096546U (en) | Sintering fixture for metal powder injection molding | |
| CN206561121U (en) | A kind of powder injection-molded handset mounting semi-finished product | |
| CN106378385B (en) | The square tantalum core moulding mould special of tantalum capacitor and its application method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161205 Address after: Chenghua District and Chengdu city 610051 Street Office of Sichuan Province Swan community group five Patentee after: SICHUAN WANJI DIAMOND DRILL CO., LTD. Address before: 430074 Wuhan Road, Hongshan, Shandong Province, Lu Lu Road, No. 388, No. Patentee before: China University of Geosciences (Wuhan) |