CN1036527A - Carbide alloy and diamond compact brazing flux - Google Patents

Carbide alloy and diamond compact brazing flux Download PDF

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Publication number
CN1036527A
CN1036527A CN 89100555 CN89100555A CN1036527A CN 1036527 A CN1036527 A CN 1036527A CN 89100555 CN89100555 CN 89100555 CN 89100555 A CN89100555 A CN 89100555A CN 1036527 A CN1036527 A CN 1036527A
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CN
China
Prior art keywords
brazing flux
pdc
soldering
carbide alloy
hard metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN 89100555
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Chinese (zh)
Other versions
CN1008988B (en
Inventor
张超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XI'AN PETROLEUM COLLEGE
Original Assignee
XI'AN PETROLEUM COLLEGE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XI'AN PETROLEUM COLLEGE filed Critical XI'AN PETROLEUM COLLEGE
Priority to CN 89100555 priority Critical patent/CN1008988B/en
Publication of CN1036527A publication Critical patent/CN1036527A/en
Publication of CN1008988B publication Critical patent/CN1008988B/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
    • B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
    • B23K35/3611—Phosphates

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention discloses a kind of PDC sheet and hard metal tip soldering brazing flux.This kind brazing flux contains cobalt chloride, can make the surface of good wetting PDC sheet of money base or copper base solder and hard metal tip, and PDC sheet and hard metal tip take off cobalt can prevent soldering the time, thereby can improve the intensity of solder joint.To the medium ground behind 500 meters on the drilling depth, drill bit flake rate is less than 3% soft for the PDC drill bit that utilizes this brazing flux assembly welding.

Description

Carbide alloy and diamond compact brazing flux
The present invention relates to a kind of soldering brazing flux.Be suitable for welding procedure with money base or copper base solder soldering glomerocryst diamond composite sheet (PDC sheet) and carbide chip.
A kind of brazing flux of soldering superhard material is disclosed among the Russian Patent A.C.1333514.Its composition is:
KBF 444～46%
Na 2B 4O 734～36%
Mo oxide 12～14%
Ni oxide 6～8%
Therefore its weak point is that this brazing flux does not contain the composition of cobalt, can't stop that cobalt element spreads in solder in PDC sheet and the carbide alloy, exists to take off the cobalt phenomenon, and brazed seam intensity is not high.
Спраьачник по пайке С.Н.Поцман，И.Е.Петрунина，В.П.φропеьа.“машиностроение”1975 Москва
The 106th page of brazing flux of putting down in writing the soldering carbide alloy in one book.Its composition is:
CoWO 30.1～8%
KF 5～8%
NaF 2～4%
Tungsten oxide 1～10%
Cobalt oxide 0.1～1%
H 3BO 3Surplus
Operating temperature is 1000～1200 ℃.Its weak point is diamond graphitization very easily under greater than 700 ℃ of conditions, loses hardness.So can't use this kind brazing flux assembly welding PDC drill bit.
The objective of the invention is to avoid weak point of the prior art, provide a kind of operating temperature to be lower than 700 ℃, can prevent effectively that PDC sheet and carbide alloy from taking off the brazing flux of cobalt in brazing process, to improve the intensity of brazed seam.
Purpose of the present invention can reach by following measure: take off the cobalt phenomenon when preventing soldering PDC sheet and carbide alloy effectively, contain cobalt chloride in the brazing flux.
The invention has the advantages that: when brazing temperature is 620～680 ℃, can make the good wetting PDC sheet of money base or copper base solder and the surface of carbide chip, anti-anti-avulsion cobalt phenomenon improves brazed seam intensity.
The present invention is described in further detail with the following Examples.PDC sheet and carbide quartz welding are (by quality) with the composition of brazing flux:
KBF 410～25%
NaOH 15～30%
KF 20～40%
B 2O 310～30%
CoCL 25～15%
Under 250～400 ℃ with the dehydration of above composition after, in ball mill, ground 100 hours, again by standby behind 200 mesh sieves.
With distilled water brazing flux furnishing pasty state can be used.Postwelding boils in water or 5% aqueous citric acid solution, removes welding slag.
With the PDC drill bit of this brazing flux assembly welding, to the medium ground behind 500 meters on the drilling depth, drill bit flake rate is less than 3% soft.

Claims (4)

1, the brazing flux of a kind of soldering composite polycrystal-diamond and carbide alloy is characterized in that containing cobalt chloride.
2,, it is characterized in that the composition of brazing flux is (by quality) by the brazing flux of claim 1 regulation
KBF 410～25%
NaOH 15～30%
KF 20～40%
B 2O 310～30%
CoCL 25～15%
3, the brazing flux of being stipulated by claim 2 is characterized in that each composition of brazing flux after dehydration under 250～400 ℃, ground 100 hours in ball mill, again by 200 mesh sieves, use distilled water furnishing pasty state during use.
4, by the brazing flux of claim 3 regulation, it is characterized in that in water or in 5% aqueous citric acid solution, boiling after the soldering, remove welding slag.
CN 89100555 1989-01-27 1989-01-27 Brazing flux for composite chips of hard alloy and diamond Expired CN1008988B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 89100555 CN1008988B (en) 1989-01-27 1989-01-27 Brazing flux for composite chips of hard alloy and diamond

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 89100555 CN1008988B (en) 1989-01-27 1989-01-27 Brazing flux for composite chips of hard alloy and diamond

Publications (2)

Publication Number Publication Date
CN1036527A true CN1036527A (en) 1989-10-25
CN1008988B CN1008988B (en) 1990-08-01

Family

ID=4853917

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 89100555 Expired CN1008988B (en) 1989-01-27 1989-01-27 Brazing flux for composite chips of hard alloy and diamond

Country Status (1)

Country Link
CN (1) CN1008988B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102814601A (en) * 2012-01-15 2012-12-12 洛阳美克金刚石有限公司 Soldering flux for brazing diamond cemented carbide sand and preparation method for soldering flux
CN103100732A (en) * 2011-12-16 2013-05-15 洛阳美克金刚石有限公司 Diamond clad sheet
CN104384648A (en) * 2014-10-14 2015-03-04 河南理工大学 Rapid manufacturing method for brazing coal cutting pick
CN104862771A (en) * 2015-05-28 2015-08-26 吉林大学 Method for removing partial metal cobalt in polycrystalline diamond compact by electrolytic method
CN105081616A (en) * 2014-05-06 2015-11-25 烟台市固光焊接材料有限责任公司 High activity non-corrosion aluminium brazing flux
CN106141493A (en) * 2015-08-25 2016-11-23 洛阳新巨能高热技术有限公司 A kind of diamond compact brazing solder and welding procedure thereof
CN106270883A (en) * 2016-08-30 2017-01-04 郑州机械研究所 A kind of PDC and the method for attachment of hard alloy
CN106270873A (en) * 2016-08-31 2017-01-04 郑州机械研究所 A kind of method for welding of hard alloy
CN107598412A (en) * 2017-10-16 2018-01-19 湖北亚科微钻有限公司 A kind of soldering auxiliary agent and its welding method for wolfram steel plane-welding

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103100732B (en) * 2011-12-16 2015-08-26 河南飞孟金刚石工业有限公司 A kind of diamond compact
CN103100732A (en) * 2011-12-16 2013-05-15 洛阳美克金刚石有限公司 Diamond clad sheet
CN102814601A (en) * 2012-01-15 2012-12-12 洛阳美克金刚石有限公司 Soldering flux for brazing diamond cemented carbide sand and preparation method for soldering flux
CN102814601B (en) * 2012-01-15 2015-07-01 河南飞孟金刚石工业有限公司 Soldering flux for brazing diamond cemented carbide sand and preparation method for soldering flux
CN105081616A (en) * 2014-05-06 2015-11-25 烟台市固光焊接材料有限责任公司 High activity non-corrosion aluminium brazing flux
CN104384648A (en) * 2014-10-14 2015-03-04 河南理工大学 Rapid manufacturing method for brazing coal cutting pick
CN104862771A (en) * 2015-05-28 2015-08-26 吉林大学 Method for removing partial metal cobalt in polycrystalline diamond compact by electrolytic method
CN106141493A (en) * 2015-08-25 2016-11-23 洛阳新巨能高热技术有限公司 A kind of diamond compact brazing solder and welding procedure thereof
CN106270883A (en) * 2016-08-30 2017-01-04 郑州机械研究所 A kind of PDC and the method for attachment of hard alloy
CN106270883B (en) * 2016-08-30 2018-04-20 郑州机械研究所有限公司 A kind of connection method of PDC and hard alloy
CN106270873A (en) * 2016-08-31 2017-01-04 郑州机械研究所 A kind of method for welding of hard alloy
CN107598412A (en) * 2017-10-16 2018-01-19 湖北亚科微钻有限公司 A kind of soldering auxiliary agent and its welding method for wolfram steel plane-welding
CN107598412B (en) * 2017-10-16 2020-05-08 湖北亚科微钻有限公司 Brazing assistant for tungsten steel plane welding and welding method thereof

Also Published As

Publication number Publication date
CN1008988B (en) 1990-08-01

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