CN103696695B - A kind of submarine oil spiral bit and preparation technology thereof - Google Patents
A kind of submarine oil spiral bit and preparation technology thereof Download PDFInfo
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Abstract
One submarine oil spiral bit of the present invention and preparation technology thereof.This drill bit includes alloy bit body and skeleton steel pipe, alloy bit body is to weld one entirety of formation by injection moulding with skeleton steel pipe, alloy bit body includes inner circle drilling pipe and cylindrical drilling pipe, six is the twisted shape chip removal plate of two-layer compound of certain space helix angle with central axis, wherein the blade surface top layer of meeting of chip removal plate is that rack plating has the very thin steel plate of diamond to make, back layer is to use bulk alloy powder, form through injection moulding system by spiral formation mould, be provided with the trip-out locating cone of taper at the top of drill bit；Cylindrical drilling pipe all offers six water supply and the tank of draining with the upper surface of inner circle drilling pipe, and the lateral surface of cylindrical drilling pipe is uniformly offered the grooves of 6 row's slurry liquid.Using diamond and " from cutting edge " alloying component that casting carbon tungsten carbide particle is small cutting edge in drill main body alloy, present configuration is simple, and rigidity is fine, and production process is short, and cost is relatively low, and the applied range of drill bit.
Description
Technical field
The invention belongs to the preparing technical field of powder metallurgy product in metal material, in particular, provide a kind of seabed
The structure of oil spiral bit and preparation technology.
Technical background
Along with developing rapidly of gasoline engine, in all dynamic power machines such as various automobiles, aircraft, steamer, the need to oil
The amount of asking and degree of dependence have reached surprising stage.Over nearly 150 years, countries in the world opening on continental rise is visited closely exhausted, gradually turns
To seabed.Literature search over the nearlyest 60 years understands, and West Europe, a lot of oil companies in Eastern Europe have carried out large-scale seabed
Oil exploitation, achieves bigger progress technically.
It is known that sea floor petroleum exploration is more difficult than continental rise exploration.First, " rig floor " is built at deep-sea
In the case of the most difficult, when the depth of water is more than 500 meters, often use " anchoring " dock type semi-active rig floor, consolidating of rig floor
Fixed highly difficult.It addition, virtually add the run of steel of dead section in water.It is envisioned that length more than 100 meters,
The middle drilling rod having again more piece threaded, even if when low speed rotation, the termination, seabed of its drilling rod swings the biggest, drill bit
Centrifugal impact force is difficult to control, and necessarily brings fatal destruction to drill bit.What this phenomenon was serious have impact on drill bit
Initial boring (hole, location) work.Meanwhile, in sea floor petroleum exploration, if bit life is short certainly will often renew drill bit,
At this moment, the working time of 80 ~ 90% is used to " handling " drilling rod, and on rig floor, much room to be had deposits drilling rod, and this is seabed
The thing that oil exploration is abstained from most.From the above, it may be appreciated that for the drill bit of sea floor petroleum exploration, not only require rate of penetration fast,
Life-span is long, and requires get hole, location voluntarily when low speed pulls out of hole.Therefore, submarine oil drill bit technology require more than
Continental rise drill bit is higher.
The petroleum industry of China starts to walk very late, submarine oil generaI investigation and production technique far lag behind American and Britain and Eastern Europe,
The Western European countries.Particularly in terms of submarine oil generaI investigation drill bit and oil mining drill bit, both without particular study mechanism, also without phase
The research fund answered, causes the offshore oil probing work of China to be had difficulty in taking a step.China is after 1958, along with Xinjiang Oil Regions
The exploitation in field, Daqing oil field and oil field, Hebei etc., has had gratifying progress in the development work of oil bit.Successively have developed
With hard alloy cylinder, polycrystalline diamond, cubic boron nitride (BN) etc. for main hard material, make with table edge or impregnated technique
The entity spiral drill bit of welding type, scraper type drill bit and to use for reference the rotary drill of European and American countries first-class.These drill bits are different
Present different drilling rates and service life under geological conditions, it be the development of China Petroleum be made that huge,
Indelible contribution.
For these years, for oil worker, it is intended to " the valued knife that the performance of a kind of energy " gets into the end " is splendid
Drill bit ".But long-term research shows, the rate of penetration of drill bit is not only relevant with the cutting edge material capability of drill bit, also with drill bit
Cutting angle, geometry have the biggest relation.Conventional experience is thought, uses hardness and the high hard alloy of comprcssive strength
It is optimum selection scheme with diamond polycrystalline material as cutting edge material.But find during actually used, by upper
Stating the overall cutting edge of the drill bit that material is made, when running into hard formation, cutting edge is easy to blunt, and new cutting edge can not be automatic
Expose, so that whole drill bit is quickly lost creeps into performance.The literature search of nearly 30 years understands, and cuts disk, rock at jade
Piercing drill on coring bit and civil engineering, marble slitting saw etc. are upper uses synthetic diamond particles and copper powder powder
" from cutting edge type alloy " drill bit (or saw blade, also referred to as toothless saw) that metallurgical heat pressing process is made, in actual use, table
Reveal the whole cutting edge formed than hard alloy cylinder and diamond polycrystal have better cutting rate of penetration and use the longevity
Life.The above-mentioned fact, knowable to materialogy theory analysis, it is small that above-mentioned diamond particles in cutting edge alloy primarily serves offer
The effect of cutting edge.The effect of metallic copper, one is to be bonded together by diamond particles, and ensures less than 900 DEG C of (diamond
Damaged temperature) time can complete bonding task；Two is to utilize the performance of copper softer, is easy to be worn and torn by rock in working angles,
Thus (cutting edge) of diamond particles is come out, i.e. the characteristic " from cutting edge alloy ".Cutting edge quilt when these diamond particles
After blunt, will the be abandoned cutting edge of (getting rid of) lower floor's diamond particles subsequently of these granules can come out again.Obviously, this
The drill bit of " from cutting edge alloy ", when running into hard formation, can show rate of penetration and the service life of excellence.But running into
When middle incompetent bed or rubble rock stratum, due to its most overall cutting angle (anterior angle, relief angle), there is no overall significantly row yet
Bits face, and these basic demands are the strictest (such as lathe tools, fluted drill) in metal cutting process and are must not
Can lack.Regrettably, in the development process of the oil bit of last 100 years, people do not recognize from theoretical and the clearest and the most definite
Knowledge is arrived, and is keeping cutting edge have the geometry (having various geometric angle) of regulation and keep the sharp-pointed sharpness of cutting edge, both
It is a pair contradiction the most scabrous.People often it is desirable that, drill bit in use, at any time in, can keep
Sharp cutting edge, can remain again the geometry (cutting anterior angle) of cutting edge, and this drill bit could have the most excellent simultaneously
Cutting speed and the longest service life.
Summary of the invention
In order to solve the problems referred to above, the purpose of the present invention is to propose to a kind of simple in construction, good rigidly and rate of penetration fast
The new structure of submarine oil spiral bit and preparation technology.
1. the technical scheme is that the present invention is structure and the technology of preparing of a kind of submarine oil spiral bit.Should
Drill bit includes alloy bit body and skeleton steel pipe, uses powder metallurgy thermal compression welding between described alloy bit body and skeleton steel pipe
And it is affixed.Described skeleton steel pipe is affixed with outer hollow pricker pipe by interior T-shape tubular thread, to provide outer power and confession
Water, chip removal task: on wherein said alloy bit body, include two (inside and outside) round bur cylinders made with drill main body alloy,
And inside (inside and outside) round bur cylinder uniform thermocompression bonding be connected to six with central axis be certain space helix angle and have
The twisted shape chip removal plate of certain thickness two-layer compound, described double-deck twisted shape chip removal plate meet blade surface top layer, be to use rack plating
The very thin steel plate having diamond is made, and another layer is to use drill main body alloyed powder, leans forward moulding mould through pressure by " inside and outside " circle
Cast, be welded；Be provided with a taper on the top of inner core twisted shape chip removal plate newel initially bores locating cone.Described
Inside and outside round bur cylinder upper end, offers six one fixed widthes, the confession of height uniformly, and rhone, in the outside of described cylindrical drilling pipe
Row's slurry liquid bath of one fixed width, the degree of depth is offered uniformly on face.
Blade surface (layer) i.e. " the cutting edge sheet metal " of meeting of twisted shape chip removal plate is the one side of " rack plating " that the present invention provides
Synthetic diamond particles is securely bonded to make on spiral type sheet metal by method.This spiral type sticking diamond particles is thin
Steel plate, thickness only has 0.5 ~ 1mm, and it can only undertake overall keen edge (cutting) effect of Flos Cannabis chip removal plate the short time.And
Because thickness is the thinnest, rigidity and intensity are all inadequate, therefore (WC+Cu+ diamond) " from cutting edge type alloy " is used according to the rules in face behind
Spatially spiral shaped reinforcement, thickening, be thus made for having certain space spiral twisted shape cutting (micro-cutting) and
The twisted shape chip removal plate of a large amount of chip removals (rubble chip removal).Thereby may be ensured that cutting edge sheet metal can play all the time in drilling process
Fixing cutting anterior angle and the dual function of keen edge are provided.
The technical scheme is that a kind of submarine oil spiral bit, this drill bit includes bit body and skeleton steel pipe, should
Drill bit includes bit body and skeleton steel pipe, and described alloy bit body and skeleton steel pipe are that to weld formation one by injection moulding whole
Body, wherein, described alloy bit body includes inner circle drilling pipe, cylindrical drilling pipe, cylindrical twisted shape chip removal plate, inner circle twisted shape chip removal plate
And locating cone, it is that certain space spiral inclines by being uniformly arranged six with central axis between described cylindrical drilling pipe and inner circle drilling pipe
The described cylindrical twisted shape chip removal plate consolidation at angle, arranging 6 in described inner circle drilling pipe with central axis is that certain space spiral inclines
The described inner circle twisted shape chip removal plate at angle, described locating cone is arranged on the center of chip removal plate in six described inner circle twisted shapes and combines
The top in portion, the upper surface of described cylindrical drilling pipe and inner circle drilling pipe offers six the most uniformly for supplying water and draining
Tank, the lateral surface of described cylindrical drilling pipe is offered 6 uniformly for the groove arranging slurry liquid, described groove and described tank
UNICOM.
Further, described cylindrical twisted shape chip removal plate and inner circle twisted shape chip removal plate are double layer composite board, described bilayer
Composite plate meet the very thin steel plate that blade surface top layer is rack plating diamond, another layer is from cutting edge type alloy sheets；Described from cutting edge type
The mass percent of each component of alloy sheets is: granularity is the copper powder of-200 mesh: 10 ~ 53%；
Granularity is 663 brass powders of-200 mesh: 10 ~ 40%；
Granularity is-200 purposes, the titanium ferroally powder 2.5% ~ 3% of Ti content 3%；
Granularity is the casting WC particle 10 ~ 15% of 20-50 mesh；
Granularity is the synthetic diamond particles 10 ~ 15% of 30-50 mesh.
Further, the number of degrees of the helix angle of described cylindrical twisted shape chip removal plate and inner circle twisted shape chip removal plate be 45 ° ~
70°。
Further, the mass percent of each component of described cylindrical drilling pipe, inner circle drilling pipe and locating cone is:
Granularity is the copper powder of-200 mesh: 10 ~ 53%；
Granularity is 663 brass powders of-200 mesh: 10 ~ 40%；
Granularity is-200 purposes, the titanium ferroally powder 2.5% ~ 3% of Ti content 3%；
Granularity is the casting WC particle 10 ~ 15% of 20-50 mesh；
Granularity is the synthetic diamond particles 10 ~ 15% of 30-50 mesh.
It is a further object to provide the preparation technology of above-mentioned submarine oil spiral bit, specifically include following step
Rapid:
Step (1): design and determine the inside and outside round bur cylinder center circle diameter Φ 1 of alloy bit body, Φ 2 and inside and outside round bur
Barrel thickness a, from cutting edge alloy height H；Inside and outside round bur cylinder top rhone width, highly, cylindrical drilling pipe outboard row slurry liquid bath
Width, the degree of depth and corresponding skeleton steel pipe sizes (see accompanying drawing 2, accompanying drawing 3)；
Step (2): according to the alloy bit body of above-mentioned design and skeleton steel pipe size design with process injection moulding graphite
Mould standby (see accompanying drawing 3) wherein said graphite jig by seaming chuck, graphite overcoat, inside and outside circle leans forward moulding ring, lower bolster,
Centre strut, lower support overcoat, composition；
Step (3): prepared by mixed powder:
3-1. mixed powder becomes assignment system:
Granularity is the copper powder of-200 mesh: 10 ~ 53%；
Granularity is 663 brass powders of-200 mesh: 10 ~ 40%；
Granularity is-200 purposes, the titanium ferroally powder 2.5% ~ 3% of Ti content 3%；
Granularity is the casting WC particle 10 ~ 15% of 20-50 mesh；
Granularity is the synthetic diamond particles 10 ~ 15% of 30-50 mesh.
3-2. mixes powder:
Weigh each powder body by the mass fraction of step 3-1, " V " type blender is initially charged the polyethylene that concentration is 0.5%
Alcohol-water solution, adds chloroform soln, be sequentially added into weigh account for 663 brass powder total amounts 90% 663 brass powders total
Amount and copper powder, titanium ferroally powder, casting WC particle, synthetic diamond particles mix discharging after 45 minutes, load and seal in container,
Standby；Wherein, described powder body and polyvinyl alcohol water solution mass ratio are 1:0.004, described powder body and chloroform soln quality
Ratio is 1:0.0024；
3-3. is die-filling:
A. graphite mo(u)ld is filled: at the lean forward prior paraffin liquid in blade surface of meeting of moulding graphite annulus of inside and outside circle, size is tilted sword
Mouthful sheet metal glues, and will be initially charged with centre strut and lower bolster (3-6) the most again below skeleton steel pipe, lower support set, the most again
Skeleton steel pipe inner circle loads the inner circle moulding ring that leans forward immediately at the cylindrical inwall of skeleton steel pipe, be loaded on cylindrical and lean forward moulding
Ring, finally dress graphite overcoat, can carry out filling powder work；
B. powder is filled:
Divide mixed powder 3 ~ 4 times slowly to load in graphite mo(u)ld, all with wooden stick, powder is consolidated when often filling a wheat-middlings.In regulation
On height, it is separately added into inside and outside sump pit dividing plate.After powder to be mixed is filled it up with, then cover remaining 663 brass powders on mixed powder
Portion, finally loads onto seaming chuck, then complete set mould is put into die casting stove and carry out die casting；
C. shove charge:
The mould filling powder is checked all grinding tool adnexaes by accompanying drawing 3, such as upper punch；Backing plate；Whether gripper shoes etc. assemble
Position and size are the most qualified, then complete set mould are put into die casting stove and carry out die casting.
Step (4): injection moulding technique
4-1 technological parameter:
A. fusion zone temperature: 960 ~ 980 DEG C
B. infiltration band temperature 850 ~ 890 DEG C
C. die casting pressure P=0.02 ~ 0.03 MPa(product pressure surface power)
D. die casting time 10 ~ 15 points
E. atmosphere forevacuum degree 1 ~ 0.1Pa；Circulation nitrogen protection: Q=1 ~ 1.5L/ divides
4-2 comes out of the stove the demoulding: furnace temperature is down to 50 DEG C of demouldings of can coming out of the stove；
Below preparation technology is i.e. completed.
Beneficial effects of the present invention:
1. the submarine oil spiral bit of the present invention have employed two columnar core drill (inside and outside circles from structure
Drilling pipe) organically combine with two Helical Twist Drills (inside and outside round twisted shape chip removal plate) thus overcome both lack
Point, makes the drill bit combination property of the present invention significantly improve.
2. the submarine oil spiral bit of the present invention ensure that two fundamentals of spiral bit from structure design,
Having sharp cutting edge and necessary cutting anterior angle, the comprehensive life length of drill bit, efficiency are high the most simultaneously.
3. from the composition of material and the space configuration of multiphase structure, make full use of and played " from the sword " of various material
With wearability difference, it is ensured that drill bit operationally can continuously bring up the back angle of drill bit cutting edge, is greatly improved
Hard formation, in middle incompetent bed and the rate of penetration of rubble rock stratum and service life, is also obviously improved by drill bit.
The most whole drill bit does not use natural gemstone grade diamond granule, does not the most use hard alloy cylinder or glomerocryst gold
Hard rock cylinder, therefore cost is relatively low.But because drill bit integral rigidity is good, therefore the more conventional various drill bits of bulk strength are higher.
The most not using bearing or other riveted structure, global reliability is good.
6. inner ring Flos Cannabis drilling pipe and outer ring Flos Cannabis drilling pipe all can arbitrarily be done greatly, and the drilling pipe number of plies is the most unrestricted.This is to speedily carrying out rescue work
Rescue highly beneficial.
7. the guidance quality of drill bit is good, it is not easy to occur boring oblique phenomenon.
8. structure monotubular, easily shunts in a well, and this is to extremely important during the brill natural gas well
9. the drill bit of the present invention can be at geological formations (high rigidity rock stratum, rubble rock stratum, the soft or hard interbed of any complexity
Formula rock stratum etc.) in use, not only can be used for land, the oil in seabed or natural gas well probing it can also be used to well and foundation pile
The probing work such as post.
10., when deep-sea drilling, initial alignment cone is easy to location, particularly when rock layer surface tilts, locating effect
Preferably.
Accompanying drawing illustrates:
Fig. 1 is the Flos Cannabis formula drill bit structure schematic diagram of the present invention.
Fig. 2 is the skeleton steel tubular construction schematic diagram of the Flos Cannabis formula drill bit of the present invention.
Fig. 3 is the graphite die casting shaping schematic view of the Flos Cannabis formula drill bit of the present invention.
In figure:
1-1, cylindrical drilling pipe, 1-2, inner circle drilling pipe, 1-3, inner circle twisted shape chip removal plate, 1-4, cylindrical twisted shape chip removal plate,
1-5, skeleton steel pipe and taper screw socket, 1-6, tank, 1-7, groove, 1-8, locating cone, round steel pipe in 2-1,2-2 gusset, outside 2-3
Round steel pipe, 3-1, seaming chuck, 3-2, graphite overcoat, 3-3, cylindrical lean forward moulding ring, and 3-4, skeleton steel pipe, 3-5, inner circle lean forward
Moulding ring, 3-6, lower bolster, 3-7, centre strut, 3-8, lower support set.
Detailed description of the invention
With specific embodiment, technical scheme is described further below in conjunction with the accompanying drawings.
As it is shown in figure 1, one submarine oil spiral bit of the present invention, this drill bit includes bit body and skeleton steel pipe, described
Alloy bit body and skeleton steel pipe be to weld one entirety of formation, wherein, in described alloy bit body includes by injection moulding
Round bur cylinder, cylindrical drilling pipe, cylindrical twisted shape chip removal plate, inner circle twisted shape chip removal plate and locating cone,
Cylindrical drilling pipe 1-1 that two diameters are different and inner circle drilling pipe 1-2, at the 1/6 of respective circumference, be respectively provided with six
Block and respective axis vertical have inner circle twisted shape chip removal plate 1-3 and the cylindrical twisted shape row at certain inclination angle (45 ° ~ 70 °)
Bits plate 1-4.Described cylindrical twisted shape chip removal plate and inner circle twisted shape chip removal plate are double layer composite board, described double layer composite board
Meeting the very thin steel plate that blade surface top layer is rack plating diamond, another layer is from cutting edge type alloy sheets；Described locating cone is arranged on six
The top of the joint portion, center of chip removal plate in described inner circle twisted shape, described cylindrical drilling pipe and difference on the upper surface of inner circle drilling pipe
Offer uniformly six for supplying water and the tanks of draining, the lateral surface of described cylindrical drilling pipe is offered uniformly 6 for
The groove of row's slurry liquid, described groove and described tank UNICOM.
Fig. 2 is the schematic diagram that steel body skeleton steel pipe 1-5 is welded to each other with steel other part of body skeleton.In accompanying drawing 2,2-1 is interior
Cylinder steel pipe, its underpart welded with the inwall of skeleton steel pipe 1-5 by larger diameter flange, and its top is the cylinder of a thinner thickness,
When injection moulding inner circle Flos Cannabis drilling pipe (1-2 in see accompanying drawing 1) integrally welded with it.In accompanying drawing 2,2-3 is urceolus steel pipe, under it
Portion is welded with skeleton steel pipe (see 1-5 in accompanying drawing 1) by gusset (see 2-2 in accompanying drawing 2).Its top also thickness is relatively
Thin cylinder, integrally welded with it when injection moulding cylindrical Flos Cannabis drilling pipe (1-2 in see accompanying drawing 1).Actual steel body skeleton steel pipe
(see 1-5 in accompanying drawing 1) and other steel body skeleton part (2-1,2-2,2-3), it is straight to be all that processing in advance is welded as semifinished part
Connect standby.
Embodiment 1:
1, during a kind of Φ (120/80)-80H12 type submarine oil drill bit of preparation, actual step is as follows:
Step 1, design alloy bit body basic size (see accompanying drawing 3)
Φ1Cylindrical drilling pipe central upper portion circular diameter (for Φ 120mm),
Φ2Inner circle Flos Cannabis drilling pipe central upper portion circular diameter (for Φ 60mm),
H from cutting edge alloy sheets height 80mm,
The wall thickness 12mm of a inside and outside round bur cylinder
Step 2, design framework steel pipe basic size (see accompanying drawing 2)
Skeleton steel pipe roundlet cylinder top (inside and outside footpath Φ 58/66) mm；Little cylinder bottom (inside and outside footpath Φ 54/70) high H=30
mm
Skeleton steel pipe outer cylinder bottom inside and outside footpath Φ (114/126mm；High H=80mm
Inside and outside footpath, skeleton circle of steel tube top is Φ (116/124) mm；High H=30 mm
Gusset 6 pieces；Length and width, thickness (60/20/6) mm
By standby after dimensional requirement polish after the most each parts integral solder.
Step 3, design graphite die casting:
As shown in Figure 3, wherein crucial parts only have three i.e. 3-2 graphite overcoat to the structure of graphite die casting；3-3
Cylindrical leans forward moulding ring；Lean forward moulding ring, its relevant size of 3-5 inner circle marks the most.See accompanying drawing 2, accompanying drawing 3.
Step 4, alloy mixed powder dispensing
1-4-1, alloying component (joining 10kg) design
(1) casting WC particle 20 ~ 50 mesh；Mass fraction 15%(is real claims 1.5kg)
(2) synthetic diamond particles JR type (30 ~ 50 mesh)；Mass fraction 10%(is real claims 1kg)
(3) pure copper powder (-200 mesh)；Mass fraction 27%(is real claims 2.7kg)
(4) bronze powder (663)-200 mesh；Mass fraction 30%(is real claims 3kg)
(5) titanium-iron powder (containing Ti:3%)-200 mesh；Mass fraction 3%(is real claims 0.3kg)
More than amounting to 9.0kg to be used for preparing mixed powder, another title 663 bronze powders are as additional powder during infiltration.Its addition
≤ 10%(mass), real title 1kg663 bronze powder
1-4-2, mixed powder are prepared
Above-mentioned various powder is put in the V-arrangement blender of 1.5 liters, add concentration be 0.5%(mass) polyvinyl alcohol (PVA)
Aqueous solution 45ml, adds 30ml chloroform soln, discharging after mixing 45 minutes, loads in sealing container standby.
Step 5, die-filling and dress powder
1-5-1, in graphite compression mod, load skeleton steel pipe, the inside and outside circle of graphite lean forward moulding ring rake on
Paste the very thin steel plate of the gold-plated hard rock of front hanging, then the assembling of other graphite jig parts is put in place.
1-5-2, divide 3 ~ 4 times slowly to load mixed powder in graphite mo(u)ld, all consolidated by powder with wooden stick when often filling a wheat-middlings.?
On the height of regulation, it is separately added into groove dividing plate.After powder to be mixed is filled it up with, then 663 bronze powders (10%) are covered on mixed powder
Portion.
Step 6, shove charge injection moulding
The graphite jig filling powder is mixed other adnexaes, such as upper punch；Backing plate；After gripper shoe etc., complete set mould is put
Die casting is carried out in entering die casting stove.
1-6, injection moulding technique
1-6-1, technological parameter
A. fusion zone temperature: 980 DEG C
B. infiltration band temperature 850 DEG C
C. die casting pressure P=0.02MPa(product pressure surface meter mark)
D. die casting time 15 points
E. atmosphere forevacuum degree 1Pa；Circulation nitrogen protection: Q=1L/ divides
1-6-2, the demoulding of coming out of the stove
When furnace temperature is down to 50 ~ 70 DEG C, can come out of the stove.Through demoulding initial survey, qualified after subcontract dress.
Embodiment two
2, the actual step of a kind of Φ (120/60) 60H12 type submarine oil spiral bit of preparation is as follows:
2-1, determine drill bit and steel skeleton basic fundamental parameter
Drill bit basic parameter is essentially identical with the technical parameter of (1) in embodiment one, and difference is that H closes from cutting edge
Gold height is 60 mm.
2-2, steel skeleton basic parameter
Identical with (1-2) in embodiment one
2-3, design graphite die casting:
Identical with (1-3) in embodiment one
2-4, alloying component and mixed powder dispensing
2-4-1, alloying component (joining 10kg) design
Essentially identical with (1-4-1) in embodiment one.Difference is:
Granularity is the copper powder of-200 mesh: 26.5%；
Granularity is 663 brass powders of-200 mesh: 30%；
Granularity is-200 purposes, the titanium ferroally powder 2.5% of Ti content 3%；
Granularity is the casting WC particle 10% of 20-50 mesh；
Granularity is the synthetic diamond particles 15% of 30-50 mesh.
2-4-2 mixed powder is prepared
Identical with (1-4-2) in embodiment one
2-5, die-filling
Identical with (1-5) in embodiment one.
2-6, shove charge and injection moulding technique
1-6-1, technological parameter
A. fusion zone temperature: 960 DEG C
B. infiltration band temperature 890 DEG C
C. die casting pressure P=0.02MPa(is ibid)
D. die casting time 10 points
E. atmosphere forevacuum degree 0.1Pa；Circulation nitrogen protection: Q=1.5L/ divides
Finished product is i.e. can be made into according to above-mentioned steps.
Claims (5)
1. a submarine oil spiral bit, this drill bit includes bit body and skeleton steel pipe, and described bit body with skeleton steel pipe is
Forming an entirety by injection moulding welding, wherein, described bit body includes that inner circle drilling pipe, cylindrical drilling pipe, cylindrical twisted shape are arranged
Bits plate, inner circle twisted shape chip removal plate and locating cone, between described cylindrical drilling pipe and inner circle drilling pipe by be uniformly arranged six with in
Mandrel line be certain space helix angle described cylindrical twisted shape chip removal plate consolidation, arrange in described inner circle drilling pipe 6 with in
Mandrel line is the described inner circle twisted shape chip removal plate of certain space helix angle, and described locating cone is arranged on six described inner circle fiber crops
The top of the joint portion, center of flower-shaped interior chip removal plate, described cylindrical drilling pipe is offered on the upper surface of inner circle drilling pipe the most uniformly
There are six tanks for water supply with draining, the lateral surface of described cylindrical drilling pipe offered 6 uniformly for arranging slurry liquid
Groove, described groove and described tank UNICOM, described tank is 6-8mm with the width of groove, and the degree of depth is 8-10mm, and its feature exists
In, described cylindrical twisted shape chip removal plate and inner circle twisted shape chip removal plate are double layer composite board, described double layer composite board meet sword
Top layer, face is the very thin steel plate of rack plating diamond, and another layer is from cutting edge type alloy sheets；Described each component from cutting edge type alloy
Mass percent be: granularity is the copper powder of-200 mesh: 10 ~ 53%；
Granularity is 663 brass powders of-200 mesh: 10 ~ 40%；
Granularity is-200 purposes, the titanium ferroally powder 2.5% ~ 3% of Ti content 3%；
Granularity is the casting WC particle 10 ~ 15% of 20-50 mesh；
Granularity is the synthetic diamond particles 10 ~ 15% of 30-50 mesh.
Submarine oil spiral bit the most according to claim 1, it is characterised in that the described thickness from cutting edge type alloy sheets
For 0.2-1.2mm.
Submarine oil spiral bit the most according to claim 1, it is characterised in that described cylindrical twisted shape chip removal plate and interior
The number of degrees of the helix angle of circle twisted shape chip removal plate are 45 ° ~ 70 °.
4. submarine oil spiral bit as claimed in claim 1, it is characterised in that it is characterized in that, described cylindrical drilling pipe, interior
The mass percent of each component of round bur cylinder and locating cone is:
Granularity is the copper powder of-200 mesh: 10 ~ 53%；
Granularity is 663 brass powders of-200 mesh: 10 ~ 40%；
Granularity is-200 purposes, the titanium ferroally powder 2.5% ~ 3% of Ti content 3%；
Granularity is the casting WC particle 10 ~ 15% of 20-50 mesh；
Granularity is the synthetic diamond particles 10 ~ 15% of 30-50 mesh.
5. the preparation technology of the submarine oil spiral bit as described in claim 1-4 any one claim, its feature exists
Use the injection moulding of powder metallurgy, the most once sintered technique in, this technique, specifically include following steps:
Step 1: design and determine the center circle diameter Φ 1 of the inner circle drilling pipe of alloy bit body, cylindrical drilling pipe, Φ 2 and drilling pipe wall
Thick a, from cutting edge type alloy sheets height H；Tank width, highly, cylindrical drilling pipe outboard row slurry liquid bath width, the degree of depth is with corresponding
Skeleton steel pipe sizes is prepared, standby；
Step 2: according to alloy bit body and the skeleton steel pipe dimensioned injection moulding graphite jig processed of step 1 design,
Standby, wherein, described graphite jig includes seaming chuck, graphite overcoat, and inner circle leans forward moulding ring, and cylindrical leans forward moulding ring, underlay
Plate, centre strut and lower support overcoat；
Step 3: prepared by mixed powder:
3-1. mixed powder becomes assignment system:
Granularity is the copper powder of-200 mesh: 10 ~ 53%；
Granularity is 663 brass powders of-200 mesh: 10 ~ 40%；
Granularity is-200 purposes, the titanium ferroally powder 2.5% ~ 3% of Ti content 3%；
Granularity is the casting WC particle 10 ~ 15% of 20-50 mesh；
Granularity is the synthetic diamond particles 10 ~ 15% of 30-50 mesh；
3-2. mixes powder:
Weigh each powder body by the mass fraction of step 3-1, " V " type blender is initially charged the polyvinyl alcohol water that concentration is 0.5%
Solution, adds chloroform soln, be sequentially added into weigh account for 663 brass powder total amounts 90% 663 brass powder total amounts and
Copper powder, titanium ferroally powder, casting WC particle, synthetic diamond particles mix discharging after 45 minutes, load and seal in container, standby
With；Wherein, described powder body and polyvinyl alcohol water solution mass ratio are 1:0.004, described powder body and chloroform soln mass ratio
For 1:0.0024；
3-3. is die-filling:
A. graphite mo(u)ld is filled: meet in blade surface prior paraffin liquid by sizeable rack plating what inside and outside circle leaned forward moulding graphite annulus
The very thin steel plate of diamond glues, and the most again skeleton steel pipe (3-4) lower section is initially charged with centre strut (3-7) and lower bolster (3-
6), lower support set (3-8), skeleton steel pipe (3-4) inner circle loads inner circle the most again and leans forward moulding ring (3-5) immediately in skeleton steel
The cylindrical inwall of pipe, is loaded on cylindrical and leans forward moulding ring (3-3), finally dress graphite overcoat (3-2), can carry out filling powder work；
B. powder is filled:
Step 3-2 prepares mixed powder divide 3 ~ 4 times slowly to load in graphite mo(u)ld, all smash by powder with wooden stick when often filling a wheat-middlings
Real, on the height of regulation, it is separately added into the dividing plate of the groove of inner circle drilling pipe, cylindrical drilling pipe, after powder to be mixed is filled it up with, then will be surplus
663 brass powders of remaining 10% cover on mixed powder top, finally load onto seaming chuck (3-1), then complete set mould are put into die casting stove
Inside carry out die casting；
Step 4: injection moulding technique
4-1 technological parameter:
Fusion zone temperature: 960 ~ 980 DEG C；
Infiltration band temperature 850 ~ 890 DEG C；
Pressure suffered by product malleation area is=.02 ~ 0.03MPa；
The die casting time 10 ~ 15 points；
Atmosphere forevacuum degree 1 ~ 0.1Pa；Circulation nitrogen protection: Q=1 ~ 1.5L/ divides；
4-2 comes out of the stove the demoulding: furnace temperature is down to 50 DEG C of demouldings of can coming out of the stove, and i.e. obtains finished product.
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| CN104179456B (en) * | 2014-08-18 | 2017-01-11 | 中国地质大学（武汉） | Drill bit with spiral lip surfaces |
| CN107587845A (en) * | 2016-07-08 | 2018-01-16 | 湖北地大金石地质工具有限公司 | The impregnated honeycomb ceramics diamond bit of ceramic base hot pressing |
| CN106626089A (en) * | 2016-11-11 | 2017-05-10 | 丹阳宝联五金制品有限公司 | Drill bit special for hard board |
| CN107159895A (en) * | 2017-05-14 | 2017-09-15 | 合肥鼎鑫模具有限公司 | A kind of digital control plane milling and boring machine drill bit |
| CN109138846B (en) * | 2018-10-17 | 2023-09-15 | 北京探矿工程研究所 | Double-core drilling tool with three blades |
| CN109702191B (en) * | 2018-12-21 | 2020-10-27 | 西安瑞福莱钨钼有限公司 | Preparation method of high-precision dynamic balance rotary anode target material |
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| CN200952352Y (en) * | 2006-06-21 | 2007-09-26 | 西南石油大学 | Geophysical prospecting rotary drill bit for well wall protection and raising chip removabl performance |
| CN101343983A (en) * | 2008-08-22 | 2009-01-14 | 北京市三一重机有限公司 | Barrel type drilling tool |
| CN202194572U (en) * | 2011-08-05 | 2012-04-18 | 北京市三一重机有限公司 | Drilling tool and engineering machinery with drilling tool |
| JP2013032628A (en) * | 2011-08-01 | 2013-02-14 | Macro Engineering Co Ltd | Drilling unit for foundation improvement |
| CN103097642A (en) * | 2010-09-13 | 2013-05-08 | 长年Tm公司 | Impregnated drill bits with integrated reamers |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200952352Y (en) * | 2006-06-21 | 2007-09-26 | 西南石油大学 | Geophysical prospecting rotary drill bit for well wall protection and raising chip removabl performance |
| CN101343983A (en) * | 2008-08-22 | 2009-01-14 | 北京市三一重机有限公司 | Barrel type drilling tool |
| CN103097642A (en) * | 2010-09-13 | 2013-05-08 | 长年Tm公司 | Impregnated drill bits with integrated reamers |
| JP2013032628A (en) * | 2011-08-01 | 2013-02-14 | Macro Engineering Co Ltd | Drilling unit for foundation improvement |
| CN202194572U (en) * | 2011-08-05 | 2012-04-18 | 北京市三一重机有限公司 | Drilling tool and engineering machinery with drilling tool |
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