CN104990815B - A kind of diamond composite sheet impact resistance energy detection method - Google Patents
A kind of diamond composite sheet impact resistance energy detection method Download PDFInfo
- Publication number
- CN104990815B CN104990815B CN201510377250.1A CN201510377250A CN104990815B CN 104990815 B CN104990815 B CN 104990815B CN 201510377250 A CN201510377250 A CN 201510377250A CN 104990815 B CN104990815 B CN 104990815B
- Authority
- CN
- China
- Prior art keywords
- composite sheet
- diamond
- impact
- chamfering
- detection method
- 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
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Ceramic Products (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The present invention discloses a kind of diamond composite sheet impact resistance energy detection method.This method includes the diamond compact after chamfering being fixed on handle of a knife, hard alloy is fixed on the table, and the product value of single-impact work value and number of shocks produced by being fallen using the lifting of handle of a knife simultaneously combines chamfering angle size correction factor and damaged area percentage to weigh the shock resistance of diamond compact；The lifting height of drop of handle of a knife is 4 ~ 9cm, is the single strike work used in detection by transform gravitational energy, and single-impact work value is 0.7 ~ 1.6 J；The single-impact work value is calculated by the law of conservation of mechanical energy.This method test error is small, simple to operate, and the shock resistance of diamond compact can be reflected exactly.
Description
Technical field
The present invention relates to a kind of detection method of shock resistance, more particularly to a kind of diamond composite sheet impact resistance
Can detection method.
Background technology
Impact resistance refers to the ability of sample resistance impact load effect, is commonly used to measurement material tough under impact conditions
Property or to the resistivity of fracture,
The superhard composite wood that diamond compact (abbreviation PDC) is made up of polycrystalline diamond layer and hard alloy substrate
Material, the hardness and wear resistance of its existing diamond, the impact resistance and weldability for having hard alloy again is used as ground extensively
Matter, oil gas well drilling instrument and machining tool, especially as geology, the brill tooth of Oil/gas Well drill bit, tentatively replace
Conventional rigid alloy bores tooth.Diamond compact as bore tooth in use, can be by strong impact in fractured rock
Diamond compact is caused to fail, so that its performance and life-span are influenceed, therefore shock resistance is to weigh diamond to be combined
A good and bad important indicator of tablet quality.
The detection method both at home and abroad to diamond composite sheet impact resistance mainly has two kinds at present, and one kind is interrupted turning
Method, is used as cutting tool, the granite of turning trough of belt, according to cutting depth, the amount of feeding and cutting number of times by diamond compact
Carry out the shock resistance of contrast product.Another method is falling ball method, and diamond compact appointed part is impacted with steel ball, according to
Steel ball ballistic work size and falling sphere number of times calculate the shock resistance of product.Both approaches respectively have advantage and disadvantage：The former spends in turning
Although use environment of the hilllock stone close to PDC in practice, surveyed data reliability is poor, complex procedures, exist necessarily in cutting
Accidental sexual factor, such as granitic difference of different sources nature, the same granitic difference of hardness XOR of place of production different batches
Uniformity difference of same rock mass etc..Material factors of the latter due to detecting steel ball, easily deform upon in test, impact
When contact area increase, so as to have a strong impact on the reliability of test data.Therefore, a kind of test error is found small, simple to operate
The detection method of PDC shock resistances can be reflected exactly turns into the target that we are pursued.
The content of the invention
The purpose of the present invention exactly provides a kind of diamond for the weak point in the presence of above-mentioned prior art and answered
Close piece shock resistance detection method.This method is simple to operate, test error is small, and diamond compact can be reflected exactly
Impact resistance.
The purpose of the present invention can be realized by following technique measures：
The diamond composite sheet impact resistance energy detection method of the present invention is to be fixed on the diamond compact after chamfering
On handle of a knife, hard alloy is fixed on the table, single-impact work value and impact time produced by being fallen using the lifting of handle of a knife
Several product value simultaneously combines chamfering angle size and its correction factor and damaged area percentage to weigh the anti-impact of diamond compact
Hit performance；The lifting height of drop of handle of a knife is 4 ~ 9cm, is the single strike work used in detection, single punching by transform gravitational energy
Work value is hit for 0.7 ~ 1.6 J；The single-impact work value is calculated by the law of conservation of mechanical energy；The correction factor according to
Chamfering angle size L and damaged area choose adjusted coefficient K and correction factor M respectively.
Heretofore described diamond compact chamfering is processed by skive, the width of chamfer plane for 0.2 ~
0.4mm。
Heretofore described chamfering angle size L and its adjusted coefficient K relation is：
The relation of damaged area percentage and its correction factor M in the present invention is：
| Damaged area percentage | M |
| 0~25% | 1 |
| 26~50% | 0.8 |
| 51~75% | 0.5 |
Heretofore described hard alloy is prepared from by the raw material of following weight percentage：Co：6 ~ 15%, WC：70~
90%, W：3 ~ 5%, VC：0.5 ~ 1%, CeO2：0.25~0.5%；Described hard alloy uses discharge plasma sintering, sintering temperature
1100 ~ 1300 DEG C, 10 ~ 30MPa of pressure, 10 ~ 30min of soaking time.
Beneficial effects of the present invention are as follows：
Discharge plasma sintering (Spark Plasma Sintering, abbreviation SPS) is a kind of activated sintering, mainly profit
It is sintered with discharge plasma.Compared with hot pressed sintering, it has, and programming rate is fast, sintering temperature is low, sintering time is short,
The distinguishing features such as institutional framework is controllable, energy-conserving and environment-protective.
Using hard alloy crystal grain is uniform made from SPS and consistency is high, hardness, bending strength and tough have also been had both simultaneously
Property all higher homogeneity, it is ensured that detection material is contacted with tested the point-to-point of diamond compact sample, it is to avoid detected
Middle detection material hardness is low, the contact area increase for easily deforming upon and causing during impact, so that it is unstable detected value occur
Situation；When logical, shock resistance detection method of the invention, employ simulation PDC practical service environments in continuous cutting by
The situation for the small impulsive force destruction arrived, closer to PDC actual use.In addition, the method that the present invention additionally uses electronic counting,
Avoid the cumbersome of manual record.
The unstability and error that the present invention solves existing domestic and international shock resistance measuring method measurement result are big etc.
Defect, surveys shock resistance and has correctly reflected shock resistance in PDC real works.
Brief description of the drawings
Fig. 1 is the schematic diagram of the inventive method.
Embodiment
The present invention is below with reference to embodiment（Accompanying drawing）It is described further：
As shown in figure 1, the diamond composite sheet impact resistance energy detection method of the present invention is to answer the diamond after chamfering
Close piece 2 to be fixed on handle of a knife 1, hard alloy 3 is fixed on the table, and the single produced by using the lifting of handle of a knife 1 being fallen is rushed
Hit the product value of work value and number of shocks and combine chamfering angle size and its correction factor and damaged area percentage to weigh Buddha's warrior attendant
The shock resistance of stone composite sheet；The lifting height of drop of handle of a knife 1 is 4 ~ 9cm, is the list used in detection by transform gravitational energy
Secondary Shocks work(, single-impact work value is 0.7 ~ 1.6 J；The single-impact work value is calculated by the law of conservation of mechanical energy.
Heretofore described diamond compact chamfering is processed by skive, the width of chamfer plane for 0.2 ~
0.4mm。
Heretofore described chamfering angle size L and its adjusted coefficient K relation is：
The relation of damaged area percentage and its correction factor M in the present invention is：
| Damaged area percentage | M |
| 0~25% | 1 |
| 26~50% | 0.8 |
| 51~75% | 0.5 |
Heretofore described hard alloy is prepared from by the raw material of following weight percentage：Co：6 ~ 15%, WC：70~
90%, W：3 ~ 5%, VC：0.5 ~ 1%, CeO2：0.25~0.5%；Described hard alloy uses discharge plasma sintering, sintering temperature
1100 ~ 1300 DEG C, 10 ~ 30MPa of pressure, 10 ~ 30min of soaking time.
Embodiment 1
(1) dispensing：Raw material is weighed by following percentage by weights：Co：6%, WC：89%, W：3.5%, VC：1%, CeO2：0.5%；
(2) sinter：Material obtained by step (1) is inserted discharge plasma sintering is carried out in mould, 1100 DEG C of temperature, pressure
Power 30MPa, soaking time 30min.
(3) install：Obtained hard alloy in step (2) is installed on the table, while the diamond of chamfering is answered
Close piece to install on a cantilever beam, single-impact work value is set as 0.7J.
(4) work：Startup power supply is switched, and cantilever beam starts to move up and down, and the lifting height of drop of handle of a knife is 4cm, is utilized
Acceleration of gravity principle detects the impact resistance of diamond compact, until diamond compact surface occur visible crack or
Produce broken stop operation.
(5) calculate：According to the product value of number of shocks and single-impact work value while and bonded diamond composite sheet chamfering
Size and its correction factor, diamond compact damaged area percentage weigh the quality of its shock resistance.
5 are extracted from a collection of diamond compact and carries out shock resistance detection, number of shocks and damaged area difference respectively
It see the table below,
| Sequence number | 1 | 2 | 3 | 4 | 5 |
| Chamfering angle size (mm) | 0.35 | 0.3 | 0.25 | 0.35 | 0.4 |
| Number of shocks | 150 | 142 | 152 | 146 | 145 |
| Damaged area (%) | 25 | 20 | 15 | 15 | 25 |
Adjusted coefficient K and correction factor M are chosen according to chamfering angle size L and damaged area respectively, 5 gold are obtained by calculating
Hard rock composite sheet shock resistance value see the table below respectively：
| Sequence number | 1 | 2 | 3 | 4 | 5 |
| Adjusted coefficient K | 0.95 | 1 | 1.1 | 0.95 | 0.82 |
| Correction factor M | 1 | 1 | 1 | 1 | 1 |
| Total impact value (J) | 99.8 | 99.4 | 105.5 | 105.7 | 100.5 |
This batch of diamond compact is manufactured into PDC drill bit, geological drilling is carried out, performance comparision in use is stable, mill
Damage basically identical, damage phenomenon is collapsed without special.
Embodiment 2
(1) dispensing：Raw material is weighed by following percentage by weights：Co：15%, WC：80%, W：4%, VC：0.5%, CeO2：
0.5%；
(2) sinter：Material obtained by step (1) is inserted discharge plasma sintering is carried out in mould, 1300 DEG C of temperature, pressure
Power 10MPa, soaking time 10min.
(3) install：Obtained hard alloy in step (2) is installed on the table, while the diamond of chamfering is answered
Close piece to install on a cantilever beam, single-impact work value is set as 1 J.
(4) work：Startup power supply is switched, and cantilever beam starts to move up and down, and the lifting height of drop of handle of a knife is 6cm, is utilized
Acceleration of gravity principle detects the impact resistance of diamond compact, until diamond compact surface occur visible crack or
Produce broken stop operation.
(5) calculate：According to the product value of number of shocks and single-impact work value while and bonded diamond composite sheet chamfering
Size and its correction factor, diamond compact damaged area percentage weigh the quality of its shock resistance.
5 are extracted from a collection of diamond compact and carries out shock resistance detection, number of shocks and damaged area difference respectively
It see the table below：
| Sequence number | 1 | 2 | 3 | 4 | 5 |
| Chamfering angle size (mm) | 0.3 | 0.4 | 0.25 | 0.2 | 0.35 |
| Number of shocks | 149 | 162 | 112 | 118 | 135 |
| Damaged area (%) | 35 | 30 | 40 | 45 | 40 |
Adjusted coefficient K and correction factor M are chosen according to chamfering angle size L and damaged area respectively, 5 gold are obtained by calculating
Hard rock composite sheet shock resistance value see the table below respectively：
| Sequence number | 1 | 2 | 3 | 4 | 5 |
| Adjusted coefficient K | 1 | 0.82 | 1.1 | 1.2 | 0.95 |
| Correction factor M | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
| Total impact value (J) | 119.2 | 106.3 | 98.6 | 113.3 | 102.6 |
This batch of diamond compact is manufactured into PDC drill bit, geological drilling is carried out, performance comparision in use is stable, mill
Damage basically identical, damage phenomenon is collapsed without special.
Embodiment 3
(1) dispensing：Raw material is weighed by following percentage by weights：Co：10%, WC：85%, W：3.5%, VC：1%, CeO2：
0.5%；
(2) sinter：Material obtained by step (1) is inserted discharge plasma sintering is carried out in mould, 1200 DEG C of temperature, pressure
Power 20MPa, soaking time 20min.
(3) install：Obtained hard alloy in step (2) is installed on the table, while the diamond of chamfering is answered
Close piece to install on a cantilever beam, single-impact work value is set as 1.6J.
(4) work：Startup power supply is switched, and cantilever beam starts to move up and down, and the lifting height of drop of handle of a knife is 9cm, is utilized
Acceleration of gravity principle detects the impact resistance of diamond compact, until diamond compact surface occur visible crack or
Produce broken stop operation.
(5) calculate：According to the product value of number of shocks and single-impact work value while and bonded diamond composite sheet chamfering
Size and its correction factor, diamond compact damaged area percentage weigh the quality of its shock resistance.
5 are extracted from a collection of diamond compact and carries out shock resistance detection, number of shocks and damaged area difference respectively
It see the table below,
| Sequence number | 1 | 2 | 3 | 4 | 5 |
| Chamfering angle size (mm) | 0.25 | 0.3 | 0.35 | 0.3 | 0.4 |
| Number of shocks | 116 | 150 | 152 | 143 | 165 |
| Damaged area (%) | 75 | 70 | 75 | 75 | 65 |
Adjusted coefficient K and correction factor M are chosen according to chamfering angle size L and damaged area respectively, 5 gold are obtained by calculating
Hard rock composite sheet shock resistance value see the table below respectively：
| Sequence number | 1 | 2 | 3 | 4 | 5 |
| Adjusted coefficient K | 1.1 | 1 | 0.95 | 1 | 0.82 |
| Correction factor M | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Total impact value (J) | 102.1 | 120 | 115.5 | 114.4 | 121.4 |
This batch of diamond compact is manufactured into PDC drill bit, geological drilling is carried out, performance comparision in use is stable, mill
Damage basically identical, damage phenomenon is collapsed without special.
Claims (4)
1. a kind of diamond composite sheet impact resistance energy detection method, it is characterised in that：Diamond compact after chamfering is consolidated
It is scheduled on handle of a knife, hard alloy is fixed on the table, single-impact work value and punching produced by being fallen using the lifting of handle of a knife
Hit the product value of number of times and combine chamfering angle size L chamfering angle size adjusted coefficient K and breakage area percentage correction factor M to weigh
Measure the shock resistance of diamond compact；The lifting height of drop of handle of a knife is 4 ~ 9cm, is detection institute by transform gravitational energy
Single strike work, single-impact work value is 0.7 ~ 1.6 J；The single-impact work value be by the law of conservation of mechanical energy come
Calculate.
2. diamond composite sheet impact resistance energy detection method according to claim 1, it is characterised in that：Described Buddha's warrior attendant
Stone composite sheet chamfering is processed by skive, and the width of chamfer plane is 0.2 ~ 0.4mm.
3. diamond composite sheet impact resistance energy detection method according to claim 1, it is characterised in that：Chamfering angle size L
Relation with chamfering angle size adjusted coefficient K is：
。
4. diamond composite sheet impact resistance energy detection method according to claim 1, it is characterised in that：Damaged area hundred
Point than and percent correction coefficient M relation be：
。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377250.1A CN104990815B (en) | 2015-06-27 | 2015-06-27 | A kind of diamond composite sheet impact resistance energy detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377250.1A CN104990815B (en) | 2015-06-27 | 2015-06-27 | A kind of diamond composite sheet impact resistance energy detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104990815A CN104990815A (en) | 2015-10-21 |
| CN104990815B true CN104990815B (en) | 2017-10-10 |
Family
ID=54302656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510377250.1A Active CN104990815B (en) | 2015-06-27 | 2015-06-27 | A kind of diamond composite sheet impact resistance energy detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104990815B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053266B (en) * | 2016-08-18 | 2019-03-26 | 中南钻石有限公司 | A kind of carbonado detection impact specimen pipe and its detection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539258A (en) * | 2011-12-30 | 2012-07-04 | 中南大学 | Efficient method for detecting impact toughness of polycrystalline diamond compacts |
| CN102788732A (en) * | 2012-07-30 | 2012-11-21 | 中南钻石股份有限公司 | Impact resistance test device for diamond compound sheet |
| CN103076244A (en) * | 2012-12-27 | 2013-05-01 | 深圳市海明润实业有限公司 | Diamond compact impact toughness testing and evaluating method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20001919A0 (en) * | 2000-08-31 | 2000-08-31 | Valtion Teknillinen | Measurement of fracture toughness on a surface by means of a scratch test procedure |
-
2015
- 2015-06-27 CN CN201510377250.1A patent/CN104990815B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539258A (en) * | 2011-12-30 | 2012-07-04 | 中南大学 | Efficient method for detecting impact toughness of polycrystalline diamond compacts |
| CN102788732A (en) * | 2012-07-30 | 2012-11-21 | 中南钻石股份有限公司 | Impact resistance test device for diamond compound sheet |
| CN103076244A (en) * | 2012-12-27 | 2013-05-01 | 深圳市海明润实业有限公司 | Diamond compact impact toughness testing and evaluating method |
Non-Patent Citations (1)
| Title |
|---|
| "碳纳米管增强聚晶金刚石复合片的抗冲击韧性及其机制";段植元等;《矿冶工程》;20150430;第35卷(第2期);第1-4页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104990815A (en) | 2015-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tsao et al. | Evaluation of drilling parameters on thrust force in drilling carbon fiber reinforced plastic (CFRP) composite laminates using compound core-special drills | |
| Aydin et al. | The Schmidt hammer in rock material characterization | |
| KR101777435B1 (en) | Acoustic emission toughness testing for pdc, pcbn, or other hard or superhard material inserts | |
| US9383304B2 (en) | Laboratory assessment of PDC cutter design under mixed-mode conditions | |
| RU2562139C2 (en) | Viscosity test of inserts of polycrystalline diamond composite (pdc), polycrystalline cubic boron nitride (pcbn), or other hard or medium-hard materials with use of acoustic emission | |
| CN106932253A (en) | Test the test specimen component and method of testing of rock I II mixed mode dynamic fracture toughness | |
| KR20130053405A (en) | Acoustic emission toughness testing for pdc, pcbn, or other hard or superhard materials | |
| CN104568627A (en) | Rock abrasiveness determination method | |
| Quan et al. | Investigation of subsurface damage considering the abrasive particle rotation in brittle material grinding | |
| Zhi et al. | Deformation properties of saw-cut fractures in Barnett, Mancos and Pierre shales | |
| US20140250994A1 (en) | Laboratory assessment of pdc cutter design under mixed-mode conditions | |
| CN104990815B (en) | A kind of diamond composite sheet impact resistance energy detection method | |
| Luo et al. | Study of the mechanism of the burnishing process with cylindrical polycrystalline diamond tools | |
| Ye et al. | Fracture properties characterization of shale rocks | |
| Buyuksagis et al. | Development of models for estimating specific energy and specific wear rate of circular diamond saw blades based on properties of carbonate rocks | |
| Jiang et al. | Prediction and experimental research on cutting energy of a new cemented carbide coating micro groove turning tool | |
| Zhongcheng et al. | TESTS ON THE DYNAMIC FAILURE RULES OF COAL-ROCK COMPOSITES. | |
| Wei-ji et al. | Investigation on the rock cutting mechanism of heterogeneous granite using a grain-based modeling approach | |
| Bao et al. | Effects of test procedures and lithology on estimating the mode I fracture toughness of rocks using empirical relations: Einfluss der Prüfverfahren und der Lithologie auf die Bestimmung der Mode I‐Bruchzähigkeit von Steinen mittels empirischer Beziehungen | |
| WO2023246459A1 (en) | Method for determining angle of internal friction of soft rock | |
| CN102539258A (en) | Efficient method for detecting impact toughness of polycrystalline diamond compacts | |
| CN202281729U (en) | Impact tester for diamond compact | |
| Ghasemi | Study of CERCHAR abrasivity index and potential modifications for more consistent measurement of rock abrasion | |
| Liu et al. | A new approach of rock cutting efficiency evaluation by using plastic energy dissipation ratio | |
| Jianyong | Interpretation of single cutter tests for rock mechanical properties |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 1 Cedar Road No. 450001, hi tech Industrial Development Zone, Henan, Zhengzhou Applicant after: Henan Yalong diamond products Limited by Share Ltd Address before: 450001 Cedar Road No. 1, hi tech Zone, Henan, Zhengzhou Applicant before: Henan YaLong Diamond Tools Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |