CN113309512A - Erosion-resistant corrosion-resistant hard alloy mud pulse generator rotor and preparation method thereof - Google Patents
Erosion-resistant corrosion-resistant hard alloy mud pulse generator rotor and preparation method thereof Download PDFInfo
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- CN113309512A CN113309512A CN202110570248.1A CN202110570248A CN113309512A CN 113309512 A CN113309512 A CN 113309512A CN 202110570248 A CN202110570248 A CN 202110570248A CN 113309512 A CN113309512 A CN 113309512A
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- polycrystalline diamond
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
- E21B47/20—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by modulation of mud waves, e.g. by continuous modulation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
Abstract
The invention discloses an erosion-resistant corrosion-resistant hard alloy slurry pulse generator rotor and a preparation method thereof, belonging to the field of petroleum drilling, wherein the slurry pulse generator rotor is a hard alloy/polycrystalline diamond composite structure rotor, a polycrystalline diamond layer is bonded on the slurry erosion surface of the conventional hard alloy slurry pulse generator rotor, or a polycrystalline diamond wafer is bonded at the position of the slurry erosion surface of the conventional hard alloy slurry pulse generator rotor, which is easy to erode locally, on the basis of ensuring the normal transmission of slurry pulse signals, the combination of the toughness of hard alloy and the corrosion resistance and erosion resistance of polycrystalline diamond is realized, the erosion resistance and corrosion resistance of the hard alloy rotor are obviously improved, and the service life of the conventional hard alloy rotor is prolonged.
Description
Technical Field
The invention belongs to the field of petroleum drilling, and particularly relates to an erosion-resistant corrosion-resistant hard alloy mud pulser rotor and a preparation method thereof.
Background
The mud pulse generator is a Measurement While Drilling (MWD) instrument for realizing real-time transmission of downhole signals, and key components of the mud pulse generator mainly comprise a stator and a rotor, so that the real-time uploading of downhole parameters such as well deviation, azimuth, stratum and the like can be realized. The rotor of the mud pulse generator continuously rotates at a certain rotating speed to continuously change the mud flow area, so that the pressure in the drill string continuously changes to form a series of continuous pressure pulse signals, the pressure pulse signals are coded by the underground probe, and the signals are decoded and calculated by a modulation system to obtain measurement data.
The rotor of the mud pulse generator is generally made of a hard alloy material, and the hard alloy is an alloy material which is prepared by a powder metallurgy method by using a refractory metal hard compound (represented by carbides mainly including tungsten carbide and vanadium carbide) as a hard phase and a bonding metal (represented by cobalt, iron and nickel) as a bonding phase. The slurry is a multiphase flow mixture and has high flow speed, high viscosity and certain corrosiveness. Under the action of mud scouring, a mud impact surface of a mud pulse generator rotor can generate an impact pit and an erosion pit, and the rotor impact abrasion and the erosion abrasion can attenuate the strength of a pulse signal, influence the signal quality and cause signal decoding failure. If the rotor is broken due to erosion of slurry, the rotor fragments can damage internal components of the drill collar under the driving of the slurry. If the rotor is replaced, the drill needs to be lifted after working for a period of time, which causes waste of manpower and financial resources.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an erosion-resistant corrosion-resistant hard alloy slurry pulse generator rotor and a preparation method thereof, which realize the combination of the toughness of hard alloy and the corrosion resistance and erosion resistance of polycrystalline diamond on the basis of ensuring the normal transmission of a slurry pulse signal, obviously improve the erosion resistance and corrosion resistance of the hard alloy rotor and prolong the service life of the traditional hard alloy rotor.
In order to achieve the purpose, the invention adopts the following technical scheme:
erosion-resistant corrosion-resistant carbide mud pulser rotor, mud pulser rotor includes carbide rotor body, its characterized in that: the polycrystalline diamond layer is bonded on the slurry erosion surface of the hard alloy rotor body through bonding glue, or the polycrystalline diamond wafer is bonded on the partial slurry erosion surface of the hard alloy rotor body through the bonding glue.
Furthermore, the adhesive is high-temperature and high-pressure adhesive which can resist the temperature of 200 ℃ and the pressure of 80MPa to 140 MPa.
In a preferred embodiment of the present invention, the high temperature and high pressure adhesive is DP420 structural adhesive manufactured by 3M company.
Further, the polycrystalline diamond layer and the polycrystalline diamond wafer are made of polycrystalline diamond materials prepared by a silicon vapor gas-phase permeation method under a vacuum condition.
Further, the diameter of polycrystalline diamond disk is 13mm, and the height is 3 mm.
The method for preparing the erosion-resistant and corrosion-resistant hard alloy slurry pulse generator rotor is characterized by comprising the following steps of:
step S1: surface treatment
Grinding the surface of the hard alloy rotor body and the surface of the polycrystalline diamond to be flat, and then carrying out sand blasting treatment to increase the roughness of the bonding surface;
step S2: cleaning workpieces
Cleaning the bonding surface of the hard alloy rotor body and the polycrystalline diamond layer in an ultrasonic container by adopting absolute ethyl alcohol under the ventilation condition;
step S3: glue spreading
Respectively coating the bonding glue on the slurry erosion surface of the hard alloy rotor body and the bonding surface of the polycrystalline diamond layer;
step S4: pressing the polycrystalline diamond layer on the slurry erosion surface of the hard alloy rotor body by adopting a pressing tool so as to bond the polycrystalline diamond layer and the hard alloy rotor body together;
step S5: righting
The flow channel of the hard alloy rotor body and the flow channel of the polycrystalline diamond layer are centered through the centering alloy block with the shape consistent with that of the rotor key groove;
step S6: high temperature tape attachment
Fixing the righting alloy block by using a high-temperature adhesive tape to ensure that the righting alloy block is tightly fit with the rotor key groove;
step S7: high temperature curing
And (3) curing at the high temperature of 180 ℃ for 30min, then keeping the temperature for 60min, and after curing, taking down the compaction tool to obtain the erosion-resistant and corrosion-resistant hard alloy mud pulse generator rotor.
Further, the thickness of the glue layer of the adhesive glue in the step S3 is 1 mm.
Further, a polyimide tape is used as the high-temperature tape in the step S6.
The method for preparing the erosion-resistant corrosion-resistant hard alloy slurry pulser rotor comprises a hard alloy rotor body, wherein polycrystalline diamond discs are locally adhered to the slurry erosion surface of the hard alloy rotor body, and is characterized by comprising the following steps which are sequentially carried out:
step S1: surface drilling of hard alloy rotor body
Drilling a hole on the local surface of the hard alloy rotor body by adopting a drilling machine to form a blind hole for embedding the polycrystalline diamond wafer;
step S2: in-hole cleaning
Purging the bottom of the blind hole in the step S1 by using a high-pressure air gun and a metal cleaning solution;
step S3: surface treatment
Carrying out sand blasting treatment on the bottom of a blind hole on the hard alloy rotor body and the surface of the polycrystalline diamond wafer to increase the roughness of the bonding surface;
step S4: secondary cleaning in hole
Purging the bottom of the blind hole of the hard alloy rotor body again by adopting a high-pressure air gun and a metal cleaning solution;
step S5: cleaning workpieces
Under the ventilation condition, absolute ethyl alcohol is adopted to clean the bonding surface of the hard alloy rotor body and the polycrystalline diamond wafer in an ultrasonic container;
step S6: glue spreading
Respectively coating bonding glue in the reserved blind hole of the hard alloy rotor body and the bonding surface of the polycrystalline diamond wafer;
step S7: pressing the polycrystalline diamond wafer into the blind hole through a pressing tool, so that the surface of the polycrystalline diamond wafer is flush with the slurry erosion surface of the hard alloy rotor body;
step S8: cleaning residual glue
Cleaning the adhesive glue extruded from the blind hole in the extrusion process;
step S9: high temperature curing
And (3) curing at the high temperature of 180 ℃ for 30min, then keeping the temperature for 60min, and after curing, taking down the compaction tool to obtain the erosion-resistant and corrosion-resistant hard alloy mud pulse generator rotor.
Further, the thickness of the glue layer of the adhesive glue in step S6 is 1 mm.
Through the design scheme, the invention can bring the following beneficial effects: the invention provides an erosion-resistant corrosion-resistant hard alloy slurry pulse generator rotor and a preparation method thereof.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limitation and are not intended to limit the invention in any way, and in which:
FIG. 1 is a schematic structural diagram of a erosion-resistant and corrosion-resistant cemented carbide slurry pulser rotor according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a erosion-resistant and corrosion-resistant cemented carbide slurry pulser rotor according to the second embodiment of the present invention.
In the figure: 1-a cemented carbide rotor body; 2-a polycrystalline diamond layer; 3-polycrystalline diamond disks.
In describing the present invention, the same reference numerals are used throughout the figures to indicate similar or corresponding features or functions.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the present invention is not limited by the following examples, and specific embodiments can be determined according to the technical solutions and practical situations of the present invention.
As shown in fig. 1 and 2, the invention provides an erosion-resistant corrosion-resistant hard alloy slurry pulser rotor, which is a hard alloy/polycrystalline diamond composite structure rotor, and comprises a hard alloy rotor body 1, wherein a polycrystalline diamond layer 2 is bonded on a slurry erosion surface of the hard alloy rotor body 1 through bonding glue, or a polycrystalline diamond wafer 3 is bonded on a part of the slurry erosion surface of the hard alloy rotor body 1 through bonding glue; the hard alloy rotor body 1 is made of WC-Co hard alloy material; the polycrystalline diamond layer 2 and the polycrystalline diamond wafer 3 are made of polycrystalline diamond materials prepared by a silicon vapor gas phase permeation method under a vacuum condition, and the rotor with the hard alloy/polycrystalline diamond composite structure realizes the combination of the toughness of hard alloy and the corrosion resistance and erosion resistance of polycrystalline diamond on the basis of ensuring the normal transmission of a slurry pulse signal, obviously improves the erosion resistance and corrosion resistance of the hard alloy rotor, and prolongs the service life of the traditional hard alloy rotor.
The outline shape of the polycrystalline diamond layer 2 is consistent with the outline shape of the slurry erosion surface of the hard alloy rotor body 1.
The bonding process between the slurry erosion surface of the hard alloy rotor body 1 and the polycrystalline diamond layer 2 and between the slurry erosion surface of the hard alloy rotor body 1 and the polycrystalline diamond wafer 3 adopts high-temperature high-pressure bonding glue for gluing connection, the high-temperature high-pressure bonding glue adopts DP420 structural glue produced by American 3M company, the main component is epoxy resin, and the high-temperature high-pressure bonding glue can resist the high temperature of 200 ℃ and the high pressure of 80 MPa-140 MPa. The bonding process can realize firm bonding between the slurry erosion surface of the hard alloy rotor body 1 and the polycrystalline diamond layer 2 and firm bonding between the slurry erosion surface of the hard alloy rotor body 1 and the polycrystalline diamond wafer 3, and avoids the occurrence of signal transmission blocking accidents caused by the falling-off of the polycrystalline diamond layer 2 and the polycrystalline diamond wafer 3 in the process that the polycrystalline diamond layer 2 and the polycrystalline diamond wafer 3 rotate along with the hard alloy rotor body 1 at a high speed. And moreover, the high-temperature and high-pressure adhesive glue is adopted, so that the mud pulse generator rotor provided by the invention still has super-strong adhesive force in an underground high-temperature and high-pressure operation environment, and the integrity of the rotor with a composite structure is kept.
Example 1
Compared with the traditional high-temperature high-pressure method, the polycrystalline diamond material prepared by adopting the silicon vapor permeation method under the vacuum condition has the advantage that the sample size can be improved by 30 percent to the maximum extent. The polycrystalline diamond material can be used on a large component, and the structural integrity is facilitated. The polycrystalline diamond material has a compact structure, high hardness, high wear resistance and excellent corrosion resistance. The slurry erosion surface of the hard alloy rotor is bonded with the polycrystalline diamond material, so that the erosion resistance and the corrosion resistance of the hard alloy rotor can be obviously improved, and the service life of the rotor is prolonged.
Wherein: the average grain size of diamond grains in the raw materials of the polycrystalline diamond material is 200-1500 mu m, and the purity is more than 99.9%; the average particle size of the silicon powder is 55 mu m, and the density is 2.33g/cm3And the purity is 99.99 percent.
The erosion-resistant corrosion-resistant hard alloy slurry pulse generator rotor comprises a hard alloy rotor body 1, and a polycrystalline diamond layer 2 is bonded on the slurry erosion surface of the hard alloy rotor body 1.
The bonding process for bonding the polycrystalline diamond layer 2 on the slurry erosion surface of the hard alloy rotor body 1 specifically comprises the following steps:
1) surface treatment
Grinding the surface of the hard alloy rotor body 1 and the surface of the polycrystalline diamond, and then carrying out sand blasting treatment to increase the roughness of the bonding surface;
2) cleaning workpieces
Cleaning the bonding surfaces of the hard alloy rotor body 1 and the polycrystalline diamond layer 2 in an ultrasonic container by adopting absolute ethyl alcohol under the ventilation condition;
3) glue combination
And uniformly stirring the epoxy resin glue and the epoxy resin curing agent according to the mass ratio of 2:1 to prepare the high-temperature high-pressure bonding glue.
4) Glue spreading
Respectively coating the uniformly stirred high-temperature and high-pressure bonding glue on the slurry erosion surface of the hard alloy rotor body 1 and the bonding surface of the polycrystalline diamond layer 2, wherein the thickness of the glue layer is 1 mm;
5) pressing polycrystalline diamond layer into cemented carbide surface
The design compresses tightly the frock, compresses tightly the frock and comprises compression screw, bottom gasket, upper gasket and nut, will exert oneself through screwing up the nut and transmit for upper gasket, and upper gasket evenly compresses tightly polycrystalline diamond layer 2, makes polycrystalline diamond layer 2 and 1 bonding of carbide rotor body firm.
The connection sequence of the pressing tool during operation is respectively a pressing screw, a bottom gasket, a hard alloy rotor body 1, a polycrystalline diamond layer 2, an upper gasket and a nut from bottom to top. The compression screw and the bottom gasket are used for fixing the hard alloy rotor body 1, and the nut and the upper gasket are used for compressing the polycrystalline diamond layer 2.
6) Righting
And designing a centering alloy block with the same shape as the rotor key groove, and centering the flow channel of the hard alloy rotor body 1 and the flow channel of the polycrystalline diamond layer 2.
7) High temperature tape attachment
Fixing the righting alloy block by using a high-temperature adhesive tape to ensure that the righting alloy block is tightly fit with the rotor key groove; the high-temperature adhesive tape is a domestic XG polyimide adhesive tape with long-term temperature resistance of 280 ℃.
8) High temperature curing
Curing at the high temperature of 180 ℃ for 30min, then keeping the temperature for 60min, and taking down the compaction tool to obtain the erosion-resistant corrosion-resistant hard alloy mud pulse generator rotor.
Example 2
The stress of each position of the slurry erosion surface of the hard alloy rotor body 1 is different, polycrystalline diamond wafers 3 with the diameter of 13mm and the height of 3mm are locally bonded at the position, which is easy to erode, of the hard alloy rotor body 1, and the raw materials of the polycrystalline diamond wafers 3 are polycrystalline diamond materials prepared by a method of silicon vapor gas phase permeation under the vacuum condition.
Wherein: the average grain size of diamond grains in the raw materials of the polycrystalline diamond material is 200-1500 mu m, and the purity is more than 99.9%; the average particle size of the silicon powder is 55 mu m, and the density is 2.33g/cm3And the purity is 99.99 percent.
The bonding process for locally bonding the polycrystalline diamond wafer 3 on the slurry erosion surface of the hard alloy rotor body 1 specifically comprises the following steps:
1) surface drilling of hard alloy rotor body 1
Drilling holes by using a drilling machine at positions on the surface of the hard alloy rotor body 1 which are easy to erode, reserving blind holes for embedding the polycrystalline diamond wafers 3, considering the thickness of a high-temperature and high-pressure adhesive glue layer, ensuring that the polycrystalline diamond wafers 3 are firmly bonded, and enabling the surface of the bonded polycrystalline diamond wafers 3 to be flush with the slurry eroding surface of the hard alloy rotor body 1;
2) in-hole cleaning
Purging the bottom of the blind hole in the step 1) by using a high-pressure air gun and a metal cleaning solution; wherein the high-pressure air gun and the metal cleaning liquid belong to the prior art, and are not described in detail herein.
3) Surface treatment
Carrying out sand blasting treatment on the bottom of a blind hole on the hard alloy rotor body 1 and the surface of the polycrystalline diamond wafer 3 to increase the roughness of the bonding surface;
4) secondary cleaning in hole
Purging the bottom of the blind hole of the hard alloy rotor body 1 again by using a high-pressure air gun and a metal cleaning solution;
5) cleaning workpieces
Under the ventilation condition, absolute ethyl alcohol is adopted to clean the bonding surfaces of the hard alloy rotor body 1 and the polycrystalline diamond wafer 3 in an ultrasonic container;
6) glue combination
Uniformly stirring the epoxy resin glue and the epoxy resin curing agent according to the mass ratio of 2:1 to prepare high-temperature high-pressure bonding glue;
7) glue spreading
Respectively coating the uniformly stirred high-temperature and high-pressure bonding glue in the reserved blind hole of the hard alloy rotor body 1 and the bonding surface of the polycrystalline diamond wafer 3, wherein the thickness of the glue layer is 1 mm;
8) pressing polycrystalline diamond wafer 3 into blind hole
Designing a compaction tool, wherein the compaction tool consists of a compaction screw, a bottom gasket, an upper gasket and a nut, transmitting force to the upper gasket by screwing the nut, and uniformly compacting the polycrystalline diamond wafer 3 by the upper gasket to firmly bond the polycrystalline diamond wafer 3 and the hard alloy rotor body 1;
the connection sequence of the pressing tool during operation is a pressing screw, a bottom gasket, a hard alloy rotor body 1, a polycrystalline diamond wafer 3, an upper gasket and a nut from bottom to top; the compression screw and the bottom gasket are used for fixing the hard alloy rotor body 1, and the nut and the upper gasket are used for compressing the polycrystalline diamond wafer 3.
9) Cleaning residual glue
Cleaning the high-temperature and high-pressure adhesive glue extruded from the blind hole in the extrusion process;
10) high temperature curing
Curing at the high temperature of 180 ℃ for 30min, then keeping the temperature for 60min, and taking down the compaction tool to obtain the erosion-resistant corrosion-resistant hard alloy mud pulse generator rotor.
Claims (10)
1. Erosion-resistant corrosion-resistant carbide mud pulser rotor, mud pulser rotor includes carbide rotor body, its characterized in that: the polycrystalline diamond layer is bonded on the slurry erosion surface of the hard alloy rotor body through bonding glue, or the polycrystalline diamond wafer is bonded on the partial slurry erosion surface of the hard alloy rotor body through the bonding glue.
2. The erosion and corrosion resistant cemented carbide mud pulser rotor of claim 1, wherein: the adhesive is high-temperature and high-pressure adhesive which can resist the temperature of 200 ℃ and the pressure of 80MPa to 140 MPa.
3. The erosion and corrosion resistant cemented carbide mud pulser rotor of claim 2, wherein: the high-temperature high-pressure bonding adhesive is DP420 structural adhesive produced by 3M company.
4. The erosion and corrosion resistant cemented carbide mud pulser rotor of claim 1, wherein: the polycrystalline diamond layer and the polycrystalline diamond wafer are made of polycrystalline diamond materials prepared by a silicon vapor gas-phase permeation method under a vacuum condition.
5. The erosion and corrosion resistant cemented carbide mud pulser rotor of claim 1, wherein: the diameter of the polycrystalline diamond wafer is 13mm, and the height of the polycrystalline diamond wafer is 3 mm.
6. A method of making the erosion and corrosion resistant cemented carbide slurry pulser rotor of claim 1, bonded from a cemented carbide rotor body and a polycrystalline diamond layer, comprising, in order:
step S1: surface treatment
Grinding the surface of the hard alloy rotor body and the surface of the polycrystalline diamond to be flat, and then carrying out sand blasting treatment to increase the roughness of the bonding surface;
step S2: cleaning workpieces
Cleaning the bonding surface of the hard alloy rotor body and the polycrystalline diamond layer in an ultrasonic container by adopting absolute ethyl alcohol under the ventilation condition;
step S3: glue spreading
Respectively coating the bonding glue on the slurry erosion surface of the hard alloy rotor body and the bonding surface of the polycrystalline diamond layer;
step S4: pressing the polycrystalline diamond layer on the slurry erosion surface of the hard alloy rotor body by adopting a pressing tool so as to bond the polycrystalline diamond layer and the hard alloy rotor body together;
step S5: righting
The flow channel of the hard alloy rotor body and the flow channel of the polycrystalline diamond layer are centered through the centering alloy block with the shape consistent with that of the rotor key groove;
step S6: high temperature tape attachment
Fixing the righting alloy block by using a high-temperature adhesive tape to ensure that the righting alloy block is tightly fit with the rotor key groove;
step S7: high temperature curing
And (3) curing at the high temperature of 180 ℃ for 30min, then keeping the temperature for 60min, and after curing, taking down the compaction tool to obtain the erosion-resistant and corrosion-resistant hard alloy mud pulse generator rotor.
7. The method of claim 6, wherein: the thickness of the adhesive layer of the adhesive glue in the step S3 is 1 mm.
8. The method of claim 6, wherein: the high-temperature adhesive tape in the step S6 is a polyimide adhesive tape.
9. A method of making the erosion and corrosion resistant cemented carbide slurry pulser rotor of claim 1, comprising a cemented carbide rotor body with a polycrystalline diamond disk locally bonded to a slurry erosion surface of the cemented carbide rotor body, comprising, and in sequence:
step S1: surface drilling of hard alloy rotor body
Drilling a hole on the local surface of the hard alloy rotor body by adopting a drilling machine to form a blind hole for embedding the polycrystalline diamond wafer;
step S2: in-hole cleaning
Purging the bottom of the blind hole in the step S1 by using a high-pressure air gun and a metal cleaning solution;
step S3: surface treatment
Carrying out sand blasting treatment on the bottom of a blind hole on the hard alloy rotor body and the surface of the polycrystalline diamond wafer to increase the roughness of the bonding surface;
step S4: secondary cleaning in hole
Purging the bottom of the blind hole of the hard alloy rotor body again by adopting a high-pressure air gun and a metal cleaning solution;
step S5: cleaning workpieces
Under the ventilation condition, absolute ethyl alcohol is adopted to clean the bonding surface of the hard alloy rotor body and the polycrystalline diamond wafer in an ultrasonic container;
step S6: glue spreading
Respectively coating bonding glue in the reserved blind hole of the hard alloy rotor body and the bonding surface of the polycrystalline diamond wafer;
step S7: pressing the polycrystalline diamond wafer into the blind hole through a pressing tool, so that the surface of the polycrystalline diamond wafer is flush with the slurry erosion surface of the hard alloy rotor body;
step S8: cleaning residual glue
Cleaning the adhesive glue extruded from the blind hole in the extrusion process;
step S9: high temperature curing
And (3) curing at the high temperature of 180 ℃ for 30min, then keeping the temperature for 60min, and after curing, taking down the compaction tool to obtain the erosion-resistant and corrosion-resistant hard alloy mud pulse generator rotor.
10. The method of claim 9, wherein: the thickness of the glue layer of the adhesive glue in the step S6 is 1 mm.
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