CN105018780B - Hard-phase-free matrix formula and manufacturing method for diamond-impregnated bit - Google Patents
Hard-phase-free matrix formula and manufacturing method for diamond-impregnated bit Download PDFInfo
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- CN105018780B CN105018780B CN201510427924.4A CN201510427924A CN105018780B CN 105018780 B CN105018780 B CN 105018780B CN 201510427924 A CN201510427924 A CN 201510427924A CN 105018780 B CN105018780 B CN 105018780B
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Abstract
The invention discloses a hard-phase-free matrix formula and manufacturing method for a diamond-impregnated bit. The usage quantity and grain size of diamond are selected according to a stratum drilled by the diamond. The hard-phase-free matrix formula comprises 24-31wt% of pure iron powder, 8-15wt% of pure nickel powder, 0.2-1.5wt% of phosphorus powder, 0.2-1.5wt% of boron powder, 0.2-1.5wt% of silicon powder, 46.5-66.4wt% of copper alloy, 1-3wt% of pure cobalt powder and a certain amount of brazing flux. The manufacturing method for the diamond-impregnated bit is a pressureless impregnation and high-temperature sintering method, the temperature is higher than the melting point temperature of Cu alloy by 30-150 DEG C, and heat preservation is performed for 5-30 min at the high temperature. According to the hard-phase-free matrix formula for the diamond-impregnated bit and the diamond-impregnated bit manufactured through the pressureless impregnation method, the matrix bending strength is high; the diamond holding force is large; the material cost is low; the manufacturing process is simple.
Description
Technical field
The present invention relates to a kind of preparation method of carcass of geological drilling and oil/gas drilling field, particularly to a kind of impregnated gold
No hard phase matrix formula of diamond bit and preparation method thereof.
Background technology
In geological drilling and oil/gas drilling field, the application of diamond-impregnated bit is quite varied, impregnated diamond drill
The formula of head and preparation method determine its performance and quality, prior art, traditional diamond-impregnated bit formula and preparation
The diamond bit of method preparation, is primarily present following 2 points of deficiencies, in (1) diamond drill bit matrix in addition to diamond particles,
Matrix formula includes the hard phases such as wc, yg6 of vast scale, and the noble metal such as co, mn, ni, ti of small scale, need to add rare earth
Element and trace alloying element are improving tyre-e/or performance, but carcass complicated components, the easy segregation of density variation, lead to batch mixing to be difficult
Uniformly；(2) mostly diamond-impregnated bit is to be formed by vacuum hot-pressing sintering, sintering temperature, sintering pressure, temperature retention time etc.
Parameter selects strictly, and between the carcass of vacuum hotpressing drill bit and diamond based on cast setting power, and hot pressing is to drill bit structure
There is certain restriction, when drilling hard and compact, " skidding " low-abrasive stratum, diamond-impregnated bit is often because of drill slipping not
Drilling depth, carcass is low to diamond hold and lead to diamond easily to come off, thus lead to diamond bit penetration rate slow,
Working life is low.Therefore, the new matrix formula of research diamond bit and method, improve bit performance, Simplified flowsheet etc., opposite
Produce and scientific research is significant.
Content of the invention
The invention aims to prepared by the above-mentioned existing traditional diamond-impregnated bit formula of solution and preparation method
Diamond bit, carcass complicated components, the easy segregation of density variation, lead to batch mixing to be difficult uniformly, diamond bit skids not enter
Chi, the too soft bit wear of carcass is too fast, the problems such as mechanical penetration rate is slow, working life is short, and provides a kind of impregnated diamond
No hard phase matrix formula of drill bit and preparation method thereof.
The composition of carcass material of the present invention and quality proportioning are as follows:
Pure fe powder 24-31wt%, pure ni powder 8-15wt%, cu alloy 46.5-66.4wt%, pure co powder 1-3wt%, p powder,
B powder and each 0.2-1.5wt% of si powder, its granularity is 200-400 mesh.
The concrete preparation method of the present invention is as follows:
(1) by carcass material weighing in proportion, add ethanol mixing, charging step by step stirs, and adds quantitative monocrystalline
Diamond mix homogeneously, puts into mould, and upper strata covers cu alloy 46.5-66.4wt%, is placed in vacuum drying oven and is dried；
(2) mould equipped with carcass material after drying is put into intermediate frequency furnace, upper strata covers soldering flux, using pressureless impregnation
Method high temperature sintering diamond and no hard phase carcass mixing material, its sintering temperature is higher than 30-150 DEG C of cu alloy melting point of dipping,
Temperature retention time 5-30min, is cooled to 800 DEG C and comes out of the stove, be air cooled to room temperature.
Beneficial effects of the present invention:
The present invention, with fe, ni and co as major metal, determines intensity, the toughness of carcass, the performance such as wearability；Suitable
Under sintering temperature, cu alloy melting, carcass, phase between cu and fe, cu and ni and cu and co are impregnated by capillary percolation effect
Counterdiffusion forms alloy, improves adhesion between carcass, thus improving the hold to diamond for the carcass；P powder, b powder and si powder
Add, reduce the erosion to diamond for the fe under high temperature, the phosphide of formation, boride and silicide are uniformly distributed in carcass
Play induration.The no hard phase carcass good combination property of pressureless impregnation method sintering, agglomerant good to the hold of diamond
Skill is simple, and material property is good.
Brief description
Fig. 1 is the micro- schematic diagram of diamond composite carcass test block rubbing surface body formula of the present invention.
Specific embodiment
The composition of carcass material of the present invention and quality proportioning are as follows:
Pure fe powder 24-31wt%, pure ni powder 8-15wt%, cu alloy 46.5-66.4wt%, pure co powder 1-3wt%, p powder,
B powder and si powder 0.4-1.5wt%, its granularity is (200-400) mesh.
The concrete preparation method of the present invention is as follows:
(1) by carcass material weighing in proportion, add ethanol mixing, charging step by step stirs, and adds quantitative monocrystalline
Diamond mix homogeneously, puts into mould, and upper strata covers cu alloy 46.5-66.4wt%, is placed in vacuum drying oven and is dried；
(2) mould equipped with carcass material after drying is put into intermediate frequency furnace, upper strata covers soldering flux, using pressureless impregnation
Method high temperature sintering diamond and no hard phase carcass mixing material, its sintering temperature is higher than 30-150 DEG C of cu alloy melting point of dipping,
Temperature retention time 5-30min, is cooled to 800 DEG C and comes out of the stove, be air cooled to room temperature.
Instantiation 1:
The diamond composite of the no hard phase carcass of pressureless impregnation sintering preparation, its composition and quality proportioning are: pure
Fe powder (300 mesh) 30%, pure ni powder (200 mesh) 11%, pure co powder 2.5%, cu alloy 55%, p powder, b powder and si powder (200 mesh)
Account for 0.5% respectively, from the volumetric concentration of diamond grit 35/40 mesh and 25%, soldering flux quality is cu alloy mass
30%, with ethanol by above-mentioned material mix homogeneously, load in graphite jig, upper strata covers cu alloy and soldering flux, after being dried
It is placed in pressureless sintering in intermediate frequency furnace, sintering temperature is 1000 DEG C, temperature retention time 5min sinters the diamond of 35mm*8mm*5mm into
Composite carcass test block.By test block with sic emery wheel to mill, test block rubbing surface diamond particle surfaces form is good, and Buddha's warrior attendant
Stone is good with carcass interface cohesion.
Instantiation 2:
The diamond-impregnated bit of the no hard phase of pressureless impregnation sintering preparation, its composition and proportioning are: pure fe (300 mesh)
28%, pure ni (200 mesh) 11%, pure co powder 2%, cu alloy 56%, soldering flux quality is cu alloy mass 35%, p powder, b powder
Account for 1% with si powder (200 mesh) respectively, from the volumetric concentration of diamond grit 35/40 mesh and 35%, with ethanol by above-mentioned material
Mix homogeneously, loads in graphite jig, upper strata covers cu alloy and soldering flux, is placed in pressureless sintering in intermediate frequency furnace after being dried,
Sintering temperature is 1000 DEG C, is incubated 10min, sinters the diamond-impregnated bit of no hard phase into.The no hard that no prepared by platen press
The diamond-impregnated bit forming degree of phase is good, and rate of penetration is fast, long working life.
Claims (1)
1. the preparation method of the no hard phase carcass of a kind of diamond-impregnated bit, the no hard phase of diamond-impregnated bit
Matrix formula, the composition of its carcass material and quality proportioning are as follows:
Pure fe powder 24-31 wt %, pure ni powder 8-15 wt %, p powder, b powder and each 0.2-1.5wt% of si powder, cu alloy 46.5-
66.4wt %, pure co powder 1-3 wt %, its granularity is 200-400 mesh；
The step of the method is as follows:
Step 1: carcass material weighing in proportion adds ethanol mixing, charging step by step stirs, add quantitative monocrystalline gold
Hard rock mix homogeneously, puts into mould, and upper strata covers cu alloy, is placed in vacuum drying oven and is dried；
Step 2: the mould equipped with carcass material and single-crystal diamond after drying is put into intermediate frequency furnace, upper strata covers soldering flux,
Using pressureless impregnation method high temperature sintering diamond and no hard phase carcass mixing material, its sintering temperature is higher than that dipping cu alloy melts
30-150 DEG C of point, temperature retention time 5-30min, it is cooled to 800 DEG C and comes out of the stove, be air cooled to room temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510427924.4A CN105018780B (en) | 2015-07-21 | 2015-07-21 | Hard-phase-free matrix formula and manufacturing method for diamond-impregnated bit |
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| CN201510427924.4A CN105018780B (en) | 2015-07-21 | 2015-07-21 | Hard-phase-free matrix formula and manufacturing method for diamond-impregnated bit |
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| CN105018780A CN105018780A (en) | 2015-11-04 |
| CN105018780B true CN105018780B (en) | 2017-01-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111822714A (en) * | 2020-06-15 | 2020-10-27 | 中国地质大学（武汉） | Diamond-impregnated bit matrix material and method for manufacturing high-adaptability diamond bit by using same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970071B (en) * | 2016-05-04 | 2017-11-17 | 江苏科技大学 | The sintered diamond milling cutter carcass and milling cutter of a kind of weak-wrapped ability and milling cutter preparation method |
| CN109913679B (en) * | 2019-04-15 | 2020-12-01 | 吉林大学 | Low-temperature matrix impregnating material of rock cutting tool and preparation method thereof |
| CN111822715B (en) * | 2020-06-15 | 2021-09-14 | 中国地质大学（武汉） | High-wear-resistance diamond-impregnated bit matrix material and method for manufacturing diamond bit by using same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1007596B (en) * | 1986-05-24 | 1990-04-18 | 地质矿产部探矿工程研究所 | Welding method for drill with diamond compound bit |
| CN1004816B (en) * | 1987-03-28 | 1989-07-19 | 江汉石油管理局钻头厂 | Making method of polycrystal diamond composite teeth drill bit |
| FR2914206B1 (en) * | 2007-03-27 | 2009-09-04 | Sas Varel Europ Soc Par Action | PROCESS FOR MANUFACTURING A WORKPIECE COMPRISING AT LEAST ONE BLOCK OF DENSE MATERIAL CONSISTING OF HARD PARTICLES DISPERSE IN A BINDER PHASE: APPLICATION TO CUTTING OR DRILLING TOOLS. |
| CN101748302B (en) * | 2008-12-08 | 2011-11-30 | 安泰科技股份有限公司 | pre-alloying powder for diamond tool and manufacturing method thereof |
| US20130098691A1 (en) * | 2011-10-25 | 2013-04-25 | Longyear Tm, Inc. | High-strength, high-hardness binders and drilling tools formed using the same |
| CN103522014B (en) * | 2013-10-15 | 2015-09-09 | 桂林特邦新材料有限公司 | Laser in combination welding heavy wall diamond drill machine method for making head |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111822714A (en) * | 2020-06-15 | 2020-10-27 | 中国地质大学（武汉） | Diamond-impregnated bit matrix material and method for manufacturing high-adaptability diamond bit by using same |
| CN111822714B (en) * | 2020-06-15 | 2021-06-08 | 中国地质大学（武汉） | Diamond-impregnated bit matrix material and method for manufacturing high-adaptability diamond bit by using same |
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