CN108746594A - A kind of processing technology of self-clinching nut - Google Patents
A kind of processing technology of self-clinching nut Download PDFInfo
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- CN108746594A CN108746594A CN201810648984.2A CN201810648984A CN108746594A CN 108746594 A CN108746594 A CN 108746594A CN 201810648984 A CN201810648984 A CN 201810648984A CN 108746594 A CN108746594 A CN 108746594A
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- 238000005516 engineering process Methods 0.000 title claims abstract description 24
- 239000000843 powder Substances 0.000 claims abstract description 358
- 239000002994 raw material Substances 0.000 claims abstract description 60
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 31
- 239000010936 titanium Substances 0.000 claims abstract description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 29
- SHPBBNULESVQRH-UHFFFAOYSA-N [O-2].[O-2].[Ti+4].[Zr+4] Chemical compound [O-2].[O-2].[Ti+4].[Zr+4] SHPBBNULESVQRH-UHFFFAOYSA-N 0.000 claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000428 dust Substances 0.000 claims abstract description 28
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 28
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 28
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims abstract description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000001257 hydrogen Substances 0.000 claims abstract description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 19
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 230000003750 conditioning effect Effects 0.000 claims abstract description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 238000005245 sintering Methods 0.000 claims description 38
- 239000011812 mixed powder Substances 0.000 claims description 30
- 238000005496 tempering Methods 0.000 claims description 26
- 238000005255 carburizing Methods 0.000 claims description 25
- 238000010079 rubber tapping Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 21
- 238000000748 compression moulding Methods 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000010791 quenching Methods 0.000 claims description 17
- 230000000171 quenching effect Effects 0.000 claims description 17
- 210000001161 mammalian embryo Anatomy 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 13
- 239000011261 inert gas Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 7
- 238000004381 surface treatment Methods 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims 2
- 229910017083 AlN Inorganic materials 0.000 claims 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims 1
- -1 Cr Powder Substances 0.000 claims 1
- 150000002431 hydrogen Chemical class 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 24
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000004049 embossing Methods 0.000 description 2
- 241000612162 Maesa Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B22F1/0003—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/06—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of threaded articles, e.g. nuts
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/241—Chemical after-treatment on the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/241—Chemical after-treatment on the surface
- B22F2003/242—Coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/245—Making recesses, grooves etc on the surface by removing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Abstract
The invention discloses a kind of processing technologys of self-clinching nut, prepare raw material：Include the raw material of following parts by weight：8~11 parts of carbon dust, 3~5 parts of Cr powder, 920~1020 parts of Fe powder, 20~25 parts of Mo powder, 5~7 parts of Ni powder, 25~30 parts of Ti powder, 12~16 parts of Nb powder, 3~6 parts of Be powder, 3~6 parts of copper powder, 3~6 parts of Zr powder, 3~6 parts of V powder, 3~6 parts of tungsten powder, 3~6 parts of aluminum nitride powder, 4~7 parts of rare earth element powder, 4~7 parts of nanometer titanium dioxide zirconium powder, 15~20 parts of surface conditioning agent, nitrogen, hydrogen.Then the present invention carries out chisel threaded hole using lathe first with sinter molding green compact to it, to realize the rapid processing of workpiece.
Description
Technical field
The present invention relates to self-clinching nut processing technique field more particularly to a kind of processing technologys of self-clinching nut.
Background technology
Self-clinching nut is called riveting nut, and self-fastening nut is applied to a kind of nut on thin plate or metal plate, and shape is in circle
Shape, one end is with embossing tooth and guide groove.Its principle is that the preset holes position of metal plate is pressed by being embossed tooth, it is however generally that preset holes
Aperture be slightly less than the embossing tooth of self-clinching nut, so that the flower tooth of self-clinching nut is squeezed into plate by pressure makes to cause the periphery in hole
Plastic deformation is generated, deformations are squeezed into guide groove, to generate the effect of locking.Self-clinching nut is divided into quick-turning steel from material
Self-clinching nut S types, stainless steel self-clinching nut CLS types, stainless iron self-clinching nut SP types and copper, aluminium self-clinching nut CLA types, are answered respectively
Ring environment is used in different.Specification is from typically from M2 to M12.The ununified national standard of self-clinching nut, is usually used in machine
Punch-out equipment cabinet, metal plate industry.
Through retrieval, Patent No. CN201610040408.0 proposes a kind of treasure maesa herb self-clinching nut processing technology, the processing
Technique needs with existing metal embryo material, to be then machined, and process is complex, needs constantly to forge, and spends
Time is longer, and the selection of embryo material must when existing embryo material, material cannot be added in embryo material, to cause raw material
Limitation, for this purpose, the present invention proposes a kind of processing technology of self-clinching nut.
Invention content
The purpose of the present invention is to solve self-clinching nut process in the prior art is complex, need constantly to forge
It makes, cost time longer disadvantage, and a kind of processing technology of the self-clinching nut proposed.
To achieve the goals above, present invention employs following technical solutions：
A kind of processing technology of self-clinching nut, includes the following steps,
S1 prepares raw material：Include the raw material of following parts by weight：8~11 parts of carbon dust, 3~5 parts of Cr powder, 920~1020 parts of Fe powder,
20~25 parts of Mo powder, 5~7 parts of Ni powder, 25~30 parts of Ti powder, 12~16 parts of Nb powder, 3~6 parts of Be powder, 3~6 parts of copper powder, Zr powder
3~6 parts, 3~6 parts of V powder, 3~6 parts of tungsten powder, 3~6 parts of aluminum nitride powder, 4~7 parts of rare earth element powder, nanometer titanium dioxide zirconium powder 4
~7 parts, 15~20 parts of surface conditioning agent, nitrogen, hydrogen；
S2 prepares process equipment, including following equipment：Grinder, batch mixer, mold and its former, sintering furnace, carburizing
Stove, tempering furnace, digital lathe；
S3, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder are respectively put into grinder, are fully crushed, and it is former to respectively obtain respective powder
Material；
S4, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder powder raw material are fitted into mixing machine, are 80~100 DEG C in temperature, with 200~300r/
The rotating speed of min is stirred, and obtains mixed-powder raw material A；
Mixed-powder raw material A is put into component die by S5, using former by mixed-powder raw material A in 680~750Mpa
Compression moulding under pressure；
The green compact of S6, compression moulding are placed in sintering furnace, in the protective atmosphere of inert gas, and hydrogen are injected, first in temperature
Degree is 1010~1060 DEG C, and sintering time is 15~25 minutes, then 1160 are increased the temperature to the speed of 4~8 DEG C/min~
It 1240 DEG C, at this temperature, re-sinters 20~30 minutes, then cools down to room temperature；
The green compact of S7, heat treatment, thermal sintering first carry out normalized treatment in normalizing furnace, and 1~2 hour is kept the temperature at 845~865 DEG C
Left and right；Quenching treatment is carried out after taking-up again, is sent into heat-treatment furnace and is heated to 570~620 DEG C, and keep the temperature 1~2 hour；Then,
It is cooled down with quenching oil, quenched part is sent into tempering furnace and is heated to carry out high tempering processing at 400~460 DEG C, is protected
Temperature 1~2 hour, then lonneal is carried out at 155~165 DEG C, keep the temperature 1~2 hour；
S8, carburizing, the raw embryo after lonneal are heated to 820~870 DEG C in carburizer in gaseous carburizing medium, protect
Temperature processing 3~5 hours, is cooled to 80 DEG C, keeps the temperature 12~24 hours, is then cooled to room temperature, obtains workpiece to be processed B；
S9 carries out tapping operation to part to be processed using digital lathe, the workpiece B in S8 is clamped, tapping is then used
Cutter carries out tapping process, obtains the workpiece B with threaded hole, and deburring processing is carried out to its surface；
Surface conditioning agent is sprayed on the surface of part by S10, surface treatment, and drying obtains finished product C.
Preferably, the component die includes upper mold and lower mold, and upper mold is rolled-up stock, and lower mold is storing unit,
Groove identical with self-clinching nut shape is provided at the top of lower mold, mixed-powder raw material A is put into groove, and upper mold
Bottom is circumferentially with colored tooth protrusion, when compacting, when amount of powder deficiency, continues to add mixed-powder raw material A, then 680~
Compression moulding under 750Mpa pressure, until self-clinching nut reaches in expected magnitude range.
Preferably, in the S1, prepare raw material：Include the raw material of following parts by weight：9.5 parts of carbon dust, 4 parts of Cr powder, Fe powder
970 parts, 22.5 parts of Mo powder, 6 parts of Ni powder, 27.5 parts of Ti powder, 14 parts of Nb powder, 4.5 parts of Be powder, 4.5 parts of copper powder, Zr powder
4.5 parts, 4.5 parts of V powder, 4.5 parts of tungsten powder, 4.5 parts of aluminum nitride powder, 5.5 parts of rare earth element powder, 5.5 parts of nanometer titanium dioxide zirconium powder,
17.5 parts of surface conditioning agent, nitrogen, hydrogen.
Preferably, in the S4, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V
Powder, tungsten powder, aluminum nitride powder, rare earth element powder, nanometer titanium dioxide zirconium powder powder raw material are fitted into mixing machine, are 90 DEG C in temperature,
It is stirred with the rotating speed of 250r/min, obtains mixed-powder raw material A.
Preferably, in the S5, mixed-powder raw material A is put into component die, using former by mixed-powder
Raw material A compression moulding under 710Mpa pressure.
Preferably, in the S6, the green compact of compression moulding are placed in sintering furnace, in the protective atmosphere of inert gas, and
Hydrogen is injected, is first 1035 DEG C in temperature, sintering time is 20 minutes, is then increased the temperature to the speed of 6 DEG C/min
It 1200 DEG C, at this temperature, re-sinters 25 minutes, then cools down to room temperature.
Preferably, in the S7, heat treatment, the green compact of thermal sintering first carry out normalized treatment in normalizing furnace, at 852 DEG C
Heat preservation 1.5 hours or so；Quenching treatment is carried out after taking-up again, is sent into heat-treatment furnace and is heated to 595 DEG C, and keep the temperature 1.5 hours；
Then, it is cooled down with quenching oil, quenched part is sent into tempering furnace and is heated to carry out high tempering processing at 430 DEG C, is protected
Temperature 1.5 hours, then lonneal is carried out at 160 DEG C, keep the temperature 1.5 hours.
Preferably, in the S8, carburizing, the raw embryo after lonneal in carburizer, in gaseous carburizing medium plus
For heat to 845 DEG C, isothermal holding 4 hours is cooled to 80 DEG C, keeps the temperature 18 hours, is then cooled to room temperature, obtains workpiece to be processed B.
A kind of processing technology of self-clinching nut proposed by the present invention, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder,
The design of Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder, rare earth element powder, nanometer titanium dioxide zirconium powder, carries significantly
The high intensity of self-clinching nut, improves the service life of product, wherein nanometer titanium dioxide zirconium powder and Ti powder wearability are good, can
To improve the wearability of product, the service life of self-clinching nut is further increased, by using digital lathe to be processed zero
Part carries out tapping operation, and the workpiece B in S8 is clamped, then tapping process is carried out with threading tool, obtains with threaded hole
Workpiece B, to its surface carry out deburring processing chisel screw thread then is carried out to it using lathe first with sinter molding green compact
Hole, to realize the rapid processing of workpiece.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.
Embodiment one
A kind of processing technology of self-clinching nut proposed by the present invention, includes the following steps,
S1 prepares raw material：Include the raw material of following parts by weight：9.5 parts of carbon dust, 4 parts of Cr powder, 970 parts of Fe powder, Mo powder 22.5
Part, 6 parts of Ni powder, 27.5 parts of Ti powder, 14 parts of Nb powder, 4.5 parts of Be powder, 4.5 parts of copper powder, 4.5 parts of Zr powder, 4.5 parts of V powder,
4.5 parts of tungsten powder, 4.5 parts of aluminum nitride powder, 5.5 parts of rare earth element powder, 5.5 parts of nanometer titanium dioxide zirconium powder, surface conditioning agent 17.5
Part, nitrogen, hydrogen；
S2 prepares process equipment, including following equipment：Grinder, batch mixer, mold and its former, sintering furnace, carburizing
Stove, tempering furnace, digital lathe；
S3, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder are respectively put into grinder, are fully crushed, and it is former to respectively obtain respective powder
Material；
S4, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder powder raw material are fitted into mixing machine, are 80 DEG C in temperature, are stirred with the rotating speed of 200r/min
Mixing is mixed, mixed-powder raw material A is obtained；
Mixed-powder raw material A is put into component die by S5, using former by mixed-powder raw material A in 680Mpa pressure
Lower compression moulding；
The green compact of S6, compression moulding are placed in sintering furnace, in the protective atmosphere of inert gas, and hydrogen are injected, first in temperature
Degree is 1010 DEG C, and sintering time is 15 minutes, then increases the temperature to 1160 DEG C with the speed of 4 DEG C/min, at this temperature, then
Sintering 20 minutes, then cools down to room temperature；
The green compact of S7, heat treatment, thermal sintering first carry out normalized treatment in normalizing furnace, and 1 hour or so is kept the temperature at 845 DEG C；It takes
Quenching treatment is carried out after going out again, is sent into heat-treatment furnace and is heated to 570 DEG C, and keep the temperature 1 hour；Then, it is cooled down with quenching oil, it will
Quenched part, which is sent into tempering furnace, to be heated to carry out high tempering processing at 400 DEG C, keeps the temperature 1 hour, then carry out at 155 DEG C
Lonneal keeps the temperature 1 hour；
S8, carburizing, the raw embryo after lonneal are heated to 820 DEG C, isothermal holding in carburizer in gaseous carburizing medium
3 hours, 80 DEG C are cooled to, 12 hours is kept the temperature, is then cooled to room temperature, obtains workpiece to be processed B；
S9 carries out tapping operation to part to be processed using digital lathe, the workpiece B in S8 is clamped, tapping is then used
Cutter carries out tapping process, obtains the workpiece B with threaded hole, and deburring processing is carried out to its surface；
Surface conditioning agent is sprayed on the surface of part by S10, surface treatment, and drying obtains finished product C.
Embodiment two
A kind of processing technology of self-clinching nut proposed by the present invention, includes the following steps,
S1 prepares raw material：Include the raw material of following parts by weight：9.5 parts of carbon dust, 4 parts of Cr powder, 970 parts of Fe powder, Mo powder 22.5
Part, 6 parts of Ni powder, 27.5 parts of Ti powder, 14 parts of Nb powder, 4.5 parts of Be powder, 4.5 parts of copper powder, 4.5 parts of Zr powder, 4.5 parts of V powder,
4.5 parts of tungsten powder, 4.5 parts of aluminum nitride powder, 5.5 parts of rare earth element powder, 5.5 parts of nanometer titanium dioxide zirconium powder, surface conditioning agent 17.5
Part, nitrogen, hydrogen；
S2 prepares process equipment, including following equipment：Grinder, batch mixer, mold and its former, sintering furnace, carburizing
Stove, tempering furnace, digital lathe；
S3, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder are respectively put into grinder, are fully crushed, and it is former to respectively obtain respective powder
Material；
S4, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder powder raw material are fitted into mixing machine, are 85 DEG C in temperature, are stirred with the rotating speed of 230r/min
Mixing is mixed, mixed-powder raw material A is obtained；
Mixed-powder raw material A is put into component die by S5, using former by mixed-powder raw material A in 700Mpa pressure
Lower compression moulding；
The green compact of S6, compression moulding are placed in sintering furnace, in the protective atmosphere of inert gas, and hydrogen are injected, first in temperature
Degree is 1025 DEG C, and sintering time is 18 minutes, then increases the temperature to 1180 DEG C with the speed of 5 DEG C/min, at this temperature, then
Sintering 23 minutes, then cools down to room temperature；
The green compact of S7, heat treatment, thermal sintering first carry out normalized treatment in normalizing furnace, and 1.3 hours or so are kept the temperature at 855 DEG C；
Quenching treatment is carried out after taking-up again, is sent into heat-treatment furnace and is heated to 590 DEG C, and keep the temperature 1.3 hours；Then, with quenching oil cooling
But, quenched part is sent into tempering furnace and is heated to carry out high tempering processing at 420 DEG C, keep the temperature 1.3 hours, then
158 DEG C of progress lonneals, keep the temperature 1.3 hours；
S8, carburizing, the raw embryo after lonneal are heated to 830 DEG C, isothermal holding in carburizer in gaseous carburizing medium
3.5 hours, 80 DEG C are cooled to, 16 hours is kept the temperature, is then cooled to room temperature, obtains workpiece to be processed B；
S9 carries out tapping operation to part to be processed using digital lathe, the workpiece B in S8 is clamped, tapping is then used
Cutter carries out tapping process, obtains the workpiece B with threaded hole, and deburring processing is carried out to its surface；
Surface conditioning agent is sprayed on the surface of part by S10, surface treatment, and drying obtains finished product C.
Embodiment three
A kind of processing technology of self-clinching nut proposed by the present invention, includes the following steps,
S1 prepares raw material：Include the raw material of following parts by weight：9.5 parts of carbon dust, 4 parts of Cr powder, 970 parts of Fe powder, Mo powder 22.5
Part, 6 parts of Ni powder, 27.5 parts of Ti powder, 14 parts of Nb powder, 4.5 parts of Be powder, 4.5 parts of copper powder, 4.5 parts of Zr powder, 4.5 parts of V powder,
4.5 parts of tungsten powder, 4.5 parts of aluminum nitride powder, 5.5 parts of rare earth element powder, 5.5 parts of nanometer titanium dioxide zirconium powder, surface conditioning agent 17.5
Part, nitrogen, hydrogen；
S2 prepares process equipment, including following equipment：Grinder, batch mixer, mold and its former, sintering furnace, carburizing
Stove, tempering furnace, digital lathe；
S3, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder are respectively put into grinder, are fully crushed, and it is former to respectively obtain respective powder
Material；
S4, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder powder raw material are fitted into mixing machine, are 90 DEG C in temperature, are stirred with the rotating speed of 250r/min
Mixing is mixed, mixed-powder raw material A is obtained；
Mixed-powder raw material A is put into component die by S5, using former by mixed-powder raw material A in 715Mpa pressure
Lower compression moulding；
The green compact of S6, compression moulding are placed in sintering furnace, in the protective atmosphere of inert gas, and hydrogen are injected, first in temperature
Degree is 1035 DEG C, and sintering time is 20 minutes, then increases the temperature to 1200 DEG C with the speed of 6 DEG C/min, at this temperature, then
Sintering 25 minutes, then cools down to room temperature；
The green compact of S7, heat treatment, thermal sintering first carry out normalized treatment in normalizing furnace, and 1~2 hour is kept the temperature at 845~865 DEG C
Left and right；Quenching treatment is carried out after taking-up again, is sent into heat-treatment furnace and is heated to 570~620 DEG C, and keep the temperature 1~2 hour；Then,
It is cooled down with quenching oil, quenched part is sent into tempering furnace and is heated to carry out high tempering processing at 400~460 DEG C, is protected
Temperature 1.5 hours, then lonneal is carried out at 160 DEG C, keep the temperature 1.5 hours；
S8, carburizing, the raw embryo after lonneal are heated to 850 DEG C, isothermal holding in carburizer in gaseous carburizing medium
4 hours, 80 DEG C are cooled to, 18 hours is kept the temperature, is then cooled to room temperature, obtains workpiece to be processed B；
S9 carries out tapping operation to part to be processed using digital lathe, the workpiece B in S8 is clamped, tapping is then used
Cutter carries out tapping process, obtains the workpiece B with threaded hole, and deburring processing is carried out to its surface；
Surface conditioning agent is sprayed on the surface of part by S10, surface treatment, and drying obtains finished product C.
Example IV
A kind of processing technology of self-clinching nut proposed by the present invention, includes the following steps,
S1 prepares raw material：Include the raw material of following parts by weight：9.5 parts of carbon dust, 4 parts of Cr powder, 970 parts of Fe powder, Mo powder 22.5
Part, 6 parts of Ni powder, 27.5 parts of Ti powder, 14 parts of Nb powder, 4.5 parts of Be powder, 4.5 parts of copper powder, 4.5 parts of Zr powder, 4.5 parts of V powder,
4.5 parts of tungsten powder, 4.5 parts of aluminum nitride powder, 5.5 parts of rare earth element powder, 5.5 parts of nanometer titanium dioxide zirconium powder, surface conditioning agent 17.5
Part, nitrogen, hydrogen；
S2 prepares process equipment, including following equipment：Grinder, batch mixer, mold and its former, sintering furnace, carburizing
Stove, tempering furnace, digital lathe；
S3, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder are respectively put into grinder, are fully crushed, and it is former to respectively obtain respective powder
Material；
S4, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder powder raw material are fitted into mixing machine, are 95 DEG C in temperature, are stirred with the rotating speed of 260r/min
Mixing is mixed, mixed-powder raw material A is obtained；
Mixed-powder raw material A is put into component die by S5, using former by mixed-powder raw material A in 740Mpa pressure
Lower compression moulding；
The green compact of S6, compression moulding are placed in sintering furnace, in the protective atmosphere of inert gas, and hydrogen are injected, first in temperature
Degree is 1050 DEG C, and sintering time is 23 minutes, then increases the temperature to 1220 DEG C with the speed of 7 DEG C/min, at this temperature, then
Sintering 28 minutes, then cools down to room temperature；
The green compact of S7, heat treatment, thermal sintering first carry out normalized treatment in normalizing furnace, and 1.8 hours or so are kept the temperature at 860 DEG C；
Quenching treatment is carried out after taking-up again, is sent into heat-treatment furnace and is heated to 600 DEG C, and keep the temperature 1.8 hours；Then, with quenching oil cooling
But, quenched part is sent into tempering furnace and is heated to carry out high tempering processing at 450 DEG C, keep the temperature 1.8 hours, then
160 DEG C of progress lonneals, keep the temperature 1.8 hours；
S8, carburizing, the raw embryo after lonneal are heated to 860 DEG C, isothermal holding in carburizer in gaseous carburizing medium
4.5 hours, 80 DEG C are cooled to, 20 hours is kept the temperature, is then cooled to room temperature, obtains workpiece to be processed B；
S9 carries out tapping operation to part to be processed using digital lathe, the workpiece B in S8 is clamped, tapping is then used
Cutter carries out tapping process, obtains the workpiece B with threaded hole, and deburring processing is carried out to its surface；
Surface conditioning agent is sprayed on the surface of part by S10, surface treatment, and drying obtains finished product C.
Embodiment five
A kind of processing technology of self-clinching nut proposed by the present invention, includes the following steps,
S1 prepares raw material：Include the raw material of following parts by weight：9.5 parts of carbon dust, 4 parts of Cr powder, 970 parts of Fe powder, Mo powder 22.5
Part, 6 parts of Ni powder, 27.5 parts of Ti powder, 14 parts of Nb powder, 4.5 parts of Be powder, 4.5 parts of copper powder, 4.5 parts of Zr powder, 4.5 parts of V powder,
4.5 parts of tungsten powder, 4.5 parts of aluminum nitride powder, 5.5 parts of rare earth element powder, 5.5 parts of nanometer titanium dioxide zirconium powder, surface conditioning agent 17.5
Part, nitrogen, hydrogen；
S2 prepares process equipment, including following equipment：Grinder, batch mixer, mold and its former, sintering furnace, carburizing
Stove, tempering furnace, digital lathe；
S3, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder are respectively put into grinder, are fully crushed, and it is former to respectively obtain respective powder
Material；
S4, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder powder raw material are fitted into mixing machine, are 100 DEG C in temperature, with the rotating speed of 300r/min
It is stirred, obtains mixed-powder raw material A；
Mixed-powder raw material A is put into component die by S5, using former by mixed-powder raw material A in 750Mpa pressure
Lower compression moulding；
The green compact of S6, compression moulding are placed in sintering furnace, in the protective atmosphere of inert gas, and hydrogen are injected, first in temperature
Degree is 1060 DEG C, and sintering time is 25 minutes, then increases the temperature to 1240 DEG C with the speed of 8 DEG C/min, at this temperature, then
Sintering 30 minutes, then cools down to room temperature；
The green compact of S7, heat treatment, thermal sintering first carry out normalized treatment in normalizing furnace, and 2 hours left sides are kept the temperature at 845~865 DEG C
It is right；Quenching treatment is carried out after taking-up again, is sent into heat-treatment furnace and is heated to 620 DEG C, and keep the temperature 2 hours；Then, with quenching oil cooling
But, quenched part is sent into tempering furnace and is heated to carry out high tempering processing at 460 DEG C, keep the temperature 2 hours, then 165
DEG C carry out lonneal, keep the temperature 2 hours；
S8, carburizing, the raw embryo after lonneal are heated to 870 DEG C, isothermal holding in carburizer in gaseous carburizing medium
5 hours, 80 DEG C are cooled to, 24 hours is kept the temperature, is then cooled to room temperature, obtains workpiece to be processed B；
S9 carries out tapping operation to part to be processed using digital lathe, the workpiece B in S8 is clamped, tapping is then used
Cutter carries out tapping process, obtains the workpiece B with threaded hole, and deburring processing is carried out to its surface；
Surface conditioning agent is sprayed on the surface of part by S10, surface treatment, and drying obtains finished product C.
A kind of processing technology of self-clinching nut proposed by the present invention, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder,
The design of Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder, rare earth element powder, nanometer titanium dioxide zirconium powder, carries significantly
The high intensity of self-clinching nut, improves the service life of product, wherein nanometer titanium dioxide zirconium powder and Ti powder wearability are good, can
To improve the wearability of product, the service life of self-clinching nut is further increased, by using digital lathe to be processed zero
Part carries out tapping operation, and the workpiece B in S8 is clamped, then tapping process is carried out with threading tool, obtains with threaded hole
Workpiece B, to its surface carry out deburring processing chisel screw thread then is carried out to it using lathe first with sinter molding green compact
Hole, to realize the rapid processing of workpiece.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of processing technology of self-clinching nut, which is characterized in that include the following steps,
S1 prepares raw material：Include the raw material of following parts by weight：8~11 parts of carbon dust, 3~5 parts of Cr powder, 920~1020 parts of Fe powder,
20~25 parts of Mo powder, 5~7 parts of Ni powder, 25~30 parts of Ti powder, 12~16 parts of Nb powder, 3~6 parts of Be powder, copper powder 3~6
Part, 3~6 parts of Zr powder, 3~6 parts of V powder, 3~6 parts of tungsten powder, 3~6 parts of aluminum nitride powder, 4~7 part, nanometer two of rare earth element powder
4~7 parts of zirconia powder, 15~20 parts of surface conditioning agent, nitrogen, hydrogen；
S2 prepares process equipment, including following equipment：Grinder, batch mixer, mold and its former, sintering furnace, carburizing
Stove, tempering furnace, digital lathe；
S3, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder are respectively put into grinder, are fully crushed, and it is former to respectively obtain respective powder
Material；
S4, by carbon dust, Cr powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder,
Rare earth element powder, nanometer titanium dioxide zirconium powder powder raw material are fitted into mixing machine, are 80~100 DEG C in temperature, with 200~300r/
The rotating speed of min is stirred, and obtains mixed-powder raw material A；
Mixed-powder raw material A is put into component die by S5, using former by mixed-powder raw material A in 680~750Mpa
Compression moulding under pressure；
The green compact of S6, compression moulding are placed in sintering furnace, in the protective atmosphere of inert gas, and hydrogen are injected, first in temperature
Degree is 1010~1060 DEG C, and sintering time is 15~25 minutes, then 1160 are increased the temperature to the speed of 4~8 DEG C/min~
It 1240 DEG C, at this temperature, re-sinters 20~30 minutes, then cools down to room temperature；
The green compact of S7, heat treatment, thermal sintering first carry out normalized treatment in normalizing furnace, and 1~2 hour is kept the temperature at 845~865 DEG C
Left and right；Quenching treatment is carried out after taking-up again, is sent into heat-treatment furnace and is heated to 570~620 DEG C, and keep the temperature 1~2 hour；Then,
It is cooled down with quenching oil, quenched part is sent into tempering furnace and is heated to carry out high tempering processing at 400~460 DEG C, is protected
Temperature 1~2 hour, then lonneal is carried out at 155~165 DEG C, keep the temperature 1~2 hour；
S8, carburizing, the raw embryo after lonneal are heated to 820~870 DEG C in carburizer in gaseous carburizing medium, protect
Temperature processing 3~5 hours, is cooled to 80 DEG C, keeps the temperature 12~24 hours, is then cooled to room temperature, obtains workpiece to be processed B；
S9 carries out tapping operation to part to be processed using digital lathe, the workpiece B in S8 is clamped, tapping is then used
Cutter carries out tapping process, obtains the workpiece B with threaded hole, and deburring processing is carried out to its surface；
Surface conditioning agent is sprayed on the surface of part by S10, surface treatment, and drying obtains finished product C.
2. a kind of processing technology of self-clinching nut according to claim 1, which is characterized in that the component die includes upper
Mold and lower mold, upper mold are rolled-up stock, and lower mold is storing unit, is provided with and self-clinching nut shape phase at the top of lower mold
With groove, mixed-powder raw material A is put into groove, and the bottom of upper mold is circumferentially with colored tooth protrusion, when compacting, works as powder
When amount is insufficient, continue to add mixed-powder raw material A, then the compression moulding under 680~750Mpa pressure, until self-clinching nut reaches
It is expected that in magnitude range.
3. a kind of processing technology of self-clinching nut according to claim 1, which is characterized in that in the S1, prepare raw material：
Include the raw material of following parts by weight：9.5 parts of carbon dust, 4 parts of Cr powder, 970 parts of Fe powder, 22.5 parts of Mo powder, 6 parts of Ni powder, Ti powder
27.5 parts, 14 parts of Nb powder, 4.5 parts of Be powder, 4.5 parts of copper powder, 4.5 parts of Zr powder, 4.5 parts of V powder, 4.5 parts of tungsten powder, aluminium nitride
4.5 parts of powder, 5.5 parts of rare earth element powder, 5.5 parts of nanometer titanium dioxide zirconium powder, 17.5 parts of surface conditioning agent, nitrogen, hydrogen.
4. a kind of processing technology of self-clinching nut according to claim 1, which is characterized in that in the S4, by carbon dust, Cr
Powder, Fe powder, Mo powder, Ni powder, Ti powder, Nb powder, Be powder, copper powder, Zr powder, V powder, tungsten powder, aluminum nitride powder, rare earth element powder, nanometer
Titanium dioxide zirconium powder powder raw material is fitted into mixing machine, is 90 DEG C in temperature, is stirred, is mixed with the rotating speed of 250r/min
Powder raw material A.
5. a kind of processing technology of self-clinching nut according to claim 1, which is characterized in that in the S5, by mixed powder
Powder stock A is put into component die, using former by the compression moulding under 710Mpa pressure of mixed-powder raw material A.
6. a kind of processing technology of self-clinching nut according to claim 1, which is characterized in that in the S6, compression moulding
Green compact be placed in sintering furnace, in the protective atmosphere of inert gas, and inject hydrogen, first temperature be 1035 DEG C, sintering
Time is 20 minutes, then increases the temperature to 1200 DEG C with the speed of 6 DEG C/min, at this temperature, re-sinters 25 minutes, then
Cool down to room temperature.
7. a kind of processing technology of self-clinching nut according to claim 1, which is characterized in that in the S7, be heat-treated, burn
The green compact for forming shape first carry out normalized treatment in normalizing furnace, and 1.5 hours or so are kept the temperature at 852 DEG C；It is quenched again after taking-up
Processing is sent into heat-treatment furnace and is heated to 595 DEG C, and keeps the temperature 1.5 hours；Then, it is cooled down with quenching oil, by quenched part
It is sent into tempering furnace and is heated to carry out high tempering processing at 430 DEG C, keep the temperature 1.5 hours, then carry out lonneal at 160 DEG C,
Heat preservation 1.5 hours.
8. a kind of processing technology of self-clinching nut according to claim 1, which is characterized in that in the S8, carburizing, low temperature
Raw embryo after tempering is heated to 845 DEG C in carburizer in gaseous carburizing medium, and isothermal holding 4 hours is cooled to 80
DEG C, 18 hours are kept the temperature, is then cooled to room temperature, obtains workpiece to be processed B.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109338243A (en) * | 2018-11-07 | 2019-02-15 | 东莞市煜田新材料有限公司 | A kind of powder sintered titanium master alloy Heat-Treatment of Steel technique |
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