CN101748322A - Low-melting point alloy adhesive for manufacturing deep-hole drilling bit - Google Patents
Low-melting point alloy adhesive for manufacturing deep-hole drilling bit Download PDFInfo
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- CN101748322A CN101748322A CN200910214279A CN200910214279A CN101748322A CN 101748322 A CN101748322 A CN 101748322A CN 200910214279 A CN200910214279 A CN 200910214279A CN 200910214279 A CN200910214279 A CN 200910214279A CN 101748322 A CN101748322 A CN 101748322A
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- melting point
- hole drilling
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Abstract
The invention relates to an adhesive for manufacturing drilling bit, in particular to a quaternionic low-melting point pre-alloyed adhesive. The low-melting point alloy adhesive for manufacturing a deep-hole drilling bit is formed by manufacturing Cu, Zn, Sn, In, other metallic elements and an additive by a conventional production method. The alloy has good covering capability for cutting elements, such as diamond, glomerocryst, composite films, and the like, has good wettability with matrix metal and compounds, and forms a high-strength composite material. The composite material can be firmly connected with a steel body, is suitably used as a diamond-impregnated bit for drilling, and is especially suitable for manufacturing deep holes and ultra deep-hole drilling bits under high temperature and pressure.
Description
[technical field]
The present invention relates to a kind of binding agent that is used to make drill bit, relate in particular to a kind of quaternary low-melting point alloy adhesive.
[background technology]
Mainly by cutting element (diamond, glomerocryst, composite sheet etc.) framework material, metal-to-metal adhesive is formed the bizet that complex body is made with drill bit in probing, and the steel body that is connected with the bizet complex body is formed.Binding agent is the tie that connects each constituent element.Nature of binder is very big to the performance impact of drill bit.
United States Patent (USP) 4669522 has been invented the Cu-P binary alloy as matrix material by Griffi, because the defective on some metallurgy does not obtain practice as low with Drill Steel body bonding strength.
People such as United States Patent (USP) 5000273 Ralph have proposed the binder alloy of Cu-Mn-Zn ternary alloy as compact bit, high manganese, the spy of crisp and hard easily oxidation can, and be not suitable for the requirement of diaborit.
Domesticly extensively used a kind of traditional cast bronze-663 bronze, as the matrix material of diamond head.The bond strength that facts have proved the wetting property of 663 bronze and carcass metal and compound and steel body is all undesirable, is not suitable for making deep hole and superdeep holes drill bit.
[summary of the invention]
At the problems referred to above, the purpose of this invention is to provide a kind of cutting element to drill bit has fabulous cladding ability, has good wetting property, formed complex body to have the very high ultimate compression strength and the low melting point alloy of wear-corrosion resistance with framework materials such as metal and metallic compounds, as making the binding agent that deep-hole drilling bit is used.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind ofly make the low-melting point alloy adhesive that deep-hole drilling bit is used, by the quaternary low melting point alloy that Cu, Zn, Sn and In form, the mass percent of each component is respectively: Cu30%-90%, Zn10%-70%, Sn0.5%-15%, In5%-40%.
The low-melting point alloy adhesive that described manufacturing deep-hole drilling bit is used also contains other metallic elements of 1-10%.
Described metallic element is one or both among Ni, Si, Mn, Co, the Fe.
The low-melting point alloy adhesive that described manufacturing deep-hole drilling bit is used also contains the crystal refinement additive of 0.1%-2%.
Described crystal refinement additive is the La series rare earth element.
The present invention makes the low-melting point alloy adhesive that deep-hole drilling bit is used, and at first under protective atmosphere Cu is heated in the intermediate frequency smelting furnace to fusing fully, leave standstill degasification after, heating up is superheated to more than 1300 ℃.Add Ni, Mn, Co, refractory metal elements such as Fe.After treating homogenizing, be cooled to below 1000 ℃, add low melting point elements such as Zn, Sn, In one by one.After full and uniformization, drop into degasifier, the technology degassing is routinely skimmed.Add at last after the La series rare earth element carries out grain refining and handle alloy, rapidly fused alloy liquation is transferred in the graphite funnel of metal atomization device, from the effusive melt liquid of flare opening, during via nozzle, air-flow that is sprayed at a high speed or high-pressure water mist change into 100-400 purpose alloy powder, i.e. low-melting point alloy adhesive.
With cutting element and framework materials such as this low-melting point alloy adhesive and diamonds, after mixing, in the graphite jig of packing into, compacting is pressed into the steel body, finishes assembling process.Again with the assembling drill bit assembly through power frequency, intermediate frequency or electrical spark hot pressed sintering, make the drill bit blank.Blank is processed through turning, leaves the mouth of a river, produces the drill bit finished product.Also high melt can be made small-particle and make the drill bit blank after homogenizing is handled, be reprocessed into the drill bit finished product by Infiltration Technics and above-mentioned cutting element and framework material.
Cu-Zn-Sn-In quaternary low-melting point alloy adhesive of the present invention, this metal adhesive has fabulous cladding ability to the cutting element (diamond single crystal, glomerocryst and composite sheet) of drill bit, with framework materials such as metal and metallic compounds good wetting property is arranged again, the complex body of Xing Chenging has very high ultimate compression strength and wear-corrosion resistance with it, especially this species complex and steel body can form reliable binding, are difficult for producing case accident.This quad alloy is suitable as the binding agent of diamond head, can reach the abominable drilling environment requirement of the drill bit of use down that is manufactured on deep drilling.
[embodiment]
Take by weighing weight percent respectively and be 45% Cu, 37% Zn, 5% Sn, 8% In, 4.5% Co and 0.5% La, the copper billet of the weighing of packing in medium-frequency induction furnace is heated and is melted to superheated melt and adds cobalt, fully after the fusing, reduces furnace temperature.Progressively add the metal that zinc, tin, indium etc. take by weighing again, treat that all elements all melts.Through degasification, skim, refining, add that to make content after the rare-earth elements of lanthanum homogenizing be 45%Cu, 37%Zn, 5%Sn, 8%In, 4.5%Co, the alloy melt of 0.5%La, melt to be sprayed into 200-400 purpose alloy powder in atomisation unit standby thereupon.
In weight ratio is 6: 0.5: 1.5: the forming agent that adds artificial diamond's stone granulate and gross weight 1% in 2 reduced iron powder, cobalt powder, tungsten carbide powder and the 400 purpose Cu-Zn-Si-In alloy powders mixes in ball mill.With the mixture precompressed in the graphite mo(u)ld of packing into, insert the steel body, be cold-pressed into one with 30 t hydraulic press, place in the Medium frequency induction thermocompressor induction heating again.In the heating that heats up, progressively heat to workpiece and reach 900 ℃-920 ℃.Under this temperature, heat-insulation pressure keeping naturally cools to workpiece after 10 minutes and is light/dark balance.Workpiece is taken out in release.After treating that it cools off fully, in graphite grinding tool, take out the drill bit blank again.The drill bit blank is through the car thread, the boiling water mouth, after the operations such as finishing the drill bit finished product.
The present invention is a kind of Cu-Zn-Sn-In quaternary low-melting point alloy adhesive that deep-hole drilling bit is used of making, this alloy all has wetting property and cladding ability preferably to cutting elements such as diamond, glomerocryst and composite sheet and carcass metal and compound, and can make very high-intensity metal-base composites with these constituent elements, be used for and make the diamond carcass material.In addition, this metal-base composites can also produce very strong being connected with the Drill Steel body, is suitable as probing and use the diamond impregnated bit material, can satisfy the deep hole under making comparatively high temps and the pressure and the needs of superdeep holes drill bit.
Claims (5)
1. make the low-melting point alloy adhesive that deep-hole drilling bit is used for one kind, it is characterized in that the quaternary low melting point alloy that this binding agent is made up of Cu, Zn, Sn and In, the mass percent of each component is respectively: Cu30%-90%, Zn10%-70%, Sn0.5%-15%, In5%-40%.
2. the low melting point prealloy binding agent that manufacturing deep-hole drilling bit as claimed in claim 1 is used is characterized in that also containing other metallic elements of 1-10%.
3. the low melting point prealloy binding agent that manufacturing deep-hole drilling bit as claimed in claim 2 is used is characterized in that described metallic element is one or both among Ni, Si, Mn, Co, the Fe.
4. the low melting point prealloy binding agent of using as right 1 or 2 or 3 described manufacturing deep-hole drilling bits is characterized in that also containing the crystal refinement additive of 0.1%-2%.
5. the low melting point prealloy binding agent that manufacturing deep-hole drilling bit as claimed in claim 4 is used is characterized in that described crystal refinement additive is the La series rare earth element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910214279A CN101748322A (en) | 2009-12-28 | 2009-12-28 | Low-melting point alloy adhesive for manufacturing deep-hole drilling bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910214279A CN101748322A (en) | 2009-12-28 | 2009-12-28 | Low-melting point alloy adhesive for manufacturing deep-hole drilling bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101748322A true CN101748322A (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910214279A Pending CN101748322A (en) | 2009-12-28 | 2009-12-28 | Low-melting point alloy adhesive for manufacturing deep-hole drilling bit |
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| CN (1) | CN101748322A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739882A (en) * | 2017-10-17 | 2018-02-27 | 成都哈顿石油钻采工具有限公司 | A kind of matrix drill bits immersion solder and preparation method thereof |
| CN111687405A (en) * | 2019-03-16 | 2020-09-22 | 北京京泰金刚石制品有限公司 | Diamond bit matrix powder and method for manufacturing diamond bit |
-
2009
- 2009-12-28 CN CN200910214279A patent/CN101748322A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739882A (en) * | 2017-10-17 | 2018-02-27 | 成都哈顿石油钻采工具有限公司 | A kind of matrix drill bits immersion solder and preparation method thereof |
| CN111687405A (en) * | 2019-03-16 | 2020-09-22 | 北京京泰金刚石制品有限公司 | Diamond bit matrix powder and method for manufacturing diamond bit |
| CN111687405B (en) * | 2019-03-16 | 2022-05-17 | 北京京泰金刚石制品有限公司 | Diamond bit matrix powder and method for manufacturing diamond bit |
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Open date: 20100623 |