CN107740805A - A kind of production technology of the automobile using bolt of high intensity - Google Patents
A kind of production technology of the automobile using bolt of high intensity Download PDFInfo
- Publication number
- CN107740805A CN107740805A CN201710923194.6A CN201710923194A CN107740805A CN 107740805 A CN107740805 A CN 107740805A CN 201710923194 A CN201710923194 A CN 201710923194A CN 107740805 A CN107740805 A CN 107740805A
- Authority
- CN
- China
- Prior art keywords
- bolt
- automobile
- parts
- threading
- cooled
- Prior art date
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- Pending
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 230000003647 oxidation Effects 0.000 claims abstract description 13
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 13
- 239000003973 paint Substances 0.000 claims abstract description 9
- 239000003792 electrolyte Substances 0.000 claims abstract description 5
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 16
- 238000005496 tempering Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- 238000010791 quenching Methods 0.000 claims description 12
- 230000000171 quenching effect Effects 0.000 claims description 12
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 229910052748 manganese Inorganic materials 0.000 claims description 9
- 239000011572 manganese Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052725 zinc Inorganic materials 0.000 claims description 9
- 229910052684 Cerium Inorganic materials 0.000 claims description 8
- 229910052693 Europium Inorganic materials 0.000 claims description 8
- 229910052765 Lutetium Inorganic materials 0.000 claims description 8
- 229910052779 Neodymium Inorganic materials 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 8
- 239000007822 coupling agent Substances 0.000 claims description 8
- 229910052733 gallium Inorganic materials 0.000 claims description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 229910052763 palladium Inorganic materials 0.000 claims description 8
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 229910052702 rhenium Inorganic materials 0.000 claims description 8
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 229910052718 tin Inorganic materials 0.000 claims description 8
- 229910052727 yttrium Inorganic materials 0.000 claims description 8
- 229910052726 zirconium Inorganic materials 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical group COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 4
- 229910021418 black silicon Inorganic materials 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000013530 defoamer Substances 0.000 claims description 3
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical group CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 229910001566 austenite Inorganic materials 0.000 description 3
- 238000005275 alloying Methods 0.000 description 2
- CWAFVXWRGIEBPL-UHFFFAOYSA-N ethoxysilane Chemical group CCO[SiH3] CWAFVXWRGIEBPL-UHFFFAOYSA-N 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical group CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/003—Alloys based on aluminium containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0036—Matrix based on Al, Mg, Be or alloys thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
Abstract
The present invention relates to a kind of production technology of the automobile using bolt of high intensity, belongs to fastening or fixing component technical field.The production technology of the automobile using bolt of the high intensity, comprises the following steps：(i) dispensing；(ii) cylindrical blank is prepared；(iii) cold-heading；(iv) threading；(v) bolt is heat-treated；(vi) bolt is put into electrolyte, is switched on power using bolt as anode and carry out anodic oxidation；(vii) wear-resistant paint is applied in bolt surface；(viii) clean and dry；(ix) pack.The production technology of the automobile using bolt of the intensity of the present invention has carried out anodized after heat treatment, substantially increases the decay resistance of bolt itself, extends service life；The production technology of the automobile using bolt of the intensity of the present invention uses frequency in anodized as 1100 hertz of the pulse power, and by voltage increase to 700V, substantially increases the effect of anodized.
Description
Technical field
The present invention relates to a kind of production technology of the automobile using bolt of high intensity, belongs to fastening or fixing component technology neck
Domain.
Background technology
Fastener is to fasten two or more parts（Or component）It is fastenedly connected used when turning into an entirety
The general name of a kind of machine components, it is widely used in various machineries, equipment, vehicle, ship, railway, bridge, building, structure, work
Above, its feature is that description is various, and performance purposes is different for tool, instrument, chemical industry, instrument and articles for use etc., and standardize,
Seriation, unitized degree are also high.
Bolt is a kind of the most frequently used fastening part, using object inclined-plane circular rotating and frictional force physics and
Mathematical principle, the instrument of incremental fastening implements parts；In the Assembling Production of automobile, bolt is also frequently used, special
Be not in enging cabin, for parts such as stationary engines, due in enging cabin in use often in the condition of high temperature,
Bolt is often subject to high temperature and moist overcast and rainy invasion and attack wherein, tends to be corroded and gets rusty.
The content of the invention
The technical problem to be solved in the present invention is, in view of the shortcomings of the prior art, proposing a kind of service life length, mechanical strength
The production technology of the automobile using bolt of high high intensity.
The present invention is to solve the technical scheme that above-mentioned technical problem proposes to be：A kind of production of the automobile using bolt of high intensity
Technique, comprise the following steps：
(i) dispensing：The mass percent of each composition is in the automobile using bolt of high intensity：C：0.01-0.02%, Fe:1.16-
1.33%,Zn:1.15-1.56%,Mn：0.17-0.24%, Cr：0.33-0.56%, Ni：0.15-0.34%, Mo：0.01-0.05%,
Ti：12.33-15.52%, Pd：0.33-0.43%,Pt：0.05-0.11%, Nd：0.14-0.32%,Ce：0.12-0.18%,Eu：
0.03-0.04%,Lu:0.03-0.07%, Ga：0.13-0.22%, Y：0.01-0.03%, Sn：0.16-0.27%, Zr：0.02-
0.05%, Re：0.01-0.03%, manganese dioxide：0.02-0.05%, surplus Al；
(ii) cylindrical blank is prepared：Using step, (i) metal wire rod is made by melting as raw material in middle dispensing, unidirectional by moveable scissor
Metal wire rod is blocked in movement, and cylindrical blank is made；
(iii) cold-heading：Cylindrical blank is subjected to cold-heading molding using cold-heading equipment, the screw head and spiral shell of bolt are formed by mould molding
Bar；
(iv) threading：Screw thread is rubbed on the screw rod of bolt using threading equipment, comprised the following steps that
A, first time threading, shallow thread is rubbed on the screw rod of screw using threading equipment；
B, second of threading, threading is carried out on the shallow thread on the screw rod of screw using threading equipment and deepens to rub final spiral shell
Line；
C, cleaning is deoiled；
(v) bolt is heat-treated, concrete technology is：
A, heat：Bolt is heated to 750-770 DEG C, and is incubated 1-2 hours；
B, cool down：Use the air-cooled cooldown rate with 8-9 DEG C/s to accelerate bolt after being cooled to 350-400 DEG C, then be air-cooled to room
Temperature；
C, once it is tempered：After bolt is heated into 450-500 DEG C of tempering 65-75min, accelerated with 10-13 DEG C/s cooldown rate
After being cooled to 250-300 DEG C, then it is air-cooled to room temperature；
D, bolt is heated to 770 DEG C, quenching 30-35min is carried out in quenching oil, then be air-cooled to room temperature；
E, double tempering：By the bolt after quenching be heated to 510-560 DEG C tempering 40-45min, after be air-cooled to room temperature；
F, cleaning is deoiled；
(vi) bolt is put into electrolyte, is switched on power using bolt as anode and carry out anodic oxidation, the voltage of anodic oxidation is
700V, the electric current of anodic oxidation is 3 amperes/square decimeter, and power supply is the pulse power, and the frequency of the pulse power is 1100 hertz,
Dutycycle is 28%；
(vii) wear-resistant paint is applied in bolt surface, wear-resistant paint includes first and second liang of equal components of mass fraction, and first and second with quality
Number meter includes following components：
Composition in first component includes following components according to the mass fraction：
E-20 epoxy resin：5-8 parts, silicon carbide micro-powder：10-13 parts, coupling agent：10-15 parts, methyl methacrylate：20-25
Part, VTES：16-20 parts；Solvent：26-29 parts；
Second component is in terms of mass fraction including containing following component：
Curing agent：10-40 parts, defoamer：11-15 parts, levelling agent：2-8 parts, solvent：10-15 parts；
Wherein, silicon carbide micro-powder is black silicon carbide and particle diameter is 8 μm；Coupling agent is gamma-aminopropyl-triethoxy-silane；
(viii) clean and dry；
(ix) pack.
The improvement of above-mentioned technical proposal is：Step (i) in the automobile using bolt of middle high intensity each composition mass percent
For：C：0.01%, Fe:1.16%,Zn:1.15%,Mn：0.17%, Cr：0.33%, Ni：0.15%, Mo：0.01%, Ti：12.33%,
Pd：0.33%,Pt：0.05%, Nd：0.14%,Ce：0.12%,Eu：0.03%,Lu:0.03%, Ga：0.13%, Y：0.01%, Sn：
0.16%, Zr：0.02%, Re：0.01%, manganese dioxide：0.02%, surplus Al.
The improvement of above-mentioned technical proposal is：Step (i) in the automobile using bolt of middle high intensity each composition mass percent
For：C：0.02%, Fe:1.33%,Zn:1.56%,Mn：0.24%, Cr：0.56%, Ni：0.34%, Mo：0.05%, Ti：15.52%,
Pd：0.43%,Pt：0.11%, Nd：0.32%,Ce：0.18%,Eu：0.04%,Lu:0.07%, Ga：0.22%, Y：0.03%, Sn：
0.27%, Zr：0.05%, Re：0.03%, manganese dioxide：0.02%, surplus Al.
It is of the invention to be using the beneficial effect of above-mentioned technical proposal：
（1）The production technology of the automobile using bolt of the intensity of the present invention uses Al in dispensing as primary raw material, more by adding
Kind of the metal such as rare earth metal and Fe, Zn, Mn so that quality that bolt itself had not only mitigated but also have enough intensity and heat/corrosion resistance
Energy；
（2）The production technology of the automobile using bolt of the intensity of the present invention adds appropriate Ti in dispensing, is mitigating itself matter
While amount, the overall mechanical strength of bolt is improved, the stabilization of fastener is ensure that, extends service life；
（3）The present invention intensity automobile using bolt production technology in threading using the method for multiple threading, in bolt
Incremental during screw thread process, the screw thread processed is more fine accurate；
（4）The production technology of the automobile using bolt of the intensity of the present invention, by double tempering, is returned for the first time when being heat-treated
Fire can rotary austenite formed on lath circle or lath beam circle, and in insulating process further enrichment alloying element to carry
High stability；Ferrite lath beam is then replied in insulating process, while the harmful element in ferrite is also discharged to back
Turn in austenite, so as to improve substrate performance；Second of tempering can make rotary austenite rich on the premise of proof strength
Collect enough alloying elements, make few net carbide, be more uniformly distributed tissue, can holding structure it is stable, further enhance
Contact fatigue strength and impact flexibility；
（5）The production technology of the automobile using bolt of the intensity of the present invention has carried out anodized after heat treatment, carries significantly
The high decay resistance of bolt itself, extends service life；
（6）The production technology of the automobile using bolt of the intensity of the present invention uses frequency in anodized as 1100 hertz
The pulse power, and by voltage increase to 700V, substantially increase the effect of anodized.
Embodiment
Embodiment one
The production technology of the automobile using bolt of the high intensity of the present embodiment, comprises the following steps：
(i) dispensing：The mass percent of each composition is in the automobile using bolt of the high intensity：C：0.01%, Fe:1.16%,Zn:
1.15%,Mn：0.17%, Cr：0.33%, Ni：0.15%, Mo：0.01%, Ti：12.33%, Pd：0.33%,Pt：0.05%, Nd：
0.14%,Ce：0.12%,Eu：0.03%,Lu:0.03%, Ga：0.13%, Y：0.01%, Sn：0.16%, Zr：0.02%, Re：0.01%,
Manganese dioxide：0.02%, surplus Al；
(ii) cylindrical blank is prepared：Using step, (i) metal wire rod is made by melting as raw material in middle dispensing, unidirectional by moveable scissor
Metal wire rod is blocked in movement, and cylindrical blank is made；
(iii) cold-heading：The cylindrical blank is subjected to cold-heading molding using cold-heading equipment, the screw head of bolt is formed by mould molding
And screw rod；
(iv) threading：Screw thread is rubbed on the screw rod of bolt using threading equipment, comprised the following steps that
A, first time threading, shallow thread is rubbed on the screw rod of screw using threading equipment；
B, second of threading, threading is carried out on the shallow thread on the screw rod of screw using threading equipment and deepens to rub final spiral shell
Line；
C, cleaning is deoiled；
(v) bolt is heat-treated, concrete technology is：
A, heat：Bolt is heated to 750 DEG C, and is incubated 1 hour；
B, cool down：Use the air-cooled cooldown rate with 8 DEG C/s to accelerate bolt after being cooled to 350 DEG C, then be air-cooled to room temperature；
C, once it is tempered：After bolt is heated into 450 DEG C of tempering 65min, accelerate to be cooled to 250 DEG C with 10 DEG C/s cooldown rate
Afterwards, then it is air-cooled to room temperature；
D, bolt is heated to 770 DEG C, quenching 30min is carried out in quenching oil, then be air-cooled to room temperature；
E, double tempering：By the bolt after quenching be heated to 510 DEG C tempering 40min, after be air-cooled to room temperature；
F, cleaning is deoiled；
(vi) bolt is put into electrolyte, is switched on power using bolt as anode and carry out anodic oxidation, the voltage of anodic oxidation is
700V, the electric current of anodic oxidation is 3 amperes/square decimeter, and the power supply is the pulse power, and the frequency of the pulse power is
1100 hertz, dutycycle 28%；
(vii) wear-resistant paint is applied in bolt surface, the wear-resistant paint includes first and second liang of equal components of mass fraction, the first
Second includes following components in terms of mass fraction：
Composition in the first component includes following components according to the mass fraction：
E-20 epoxy resin：5 parts, silicon carbide micro-powder：10 parts, coupling agent：10 parts, methyl methacrylate：20 parts, vinyl three
Ethoxysilane：16 parts；Solvent：26 parts；
The second component is in terms of mass fraction including containing following component：
Curing agent：15 parts, defoamer：12 parts, levelling agent：8 parts, solvent：15 parts；
Wherein, the silicon carbide micro-powder is black silicon carbide and particle diameter is 8 μm；The coupling agent is gamma-aminopropyl-triethoxy silicon
Alkane；
(viii) clean and dry；
(ix) pack.
Embodiment two
The production technology of the automobile using bolt of the high intensity of the present embodiment, comprises the following steps：
(i) dispensing：The mass percent of each composition is in the automobile using bolt of the high intensity：C：0.02%, Fe:1.33%,Zn:
1.56%,Mn：0.24%, Cr：0.56%, Ni：0.34%, Mo：0.05%, Ti：15.52%, Pd：0.43%,Pt：0.11%, Nd：
0.32%,Ce：0.18%,Eu：0.04%,Lu:0.07%, Ga：0.22%, Y：0.03%, Sn：0.27%, Zr：0.05%, Re：0.03%,
Manganese dioxide：0.02%, surplus Al；
(ii) cylindrical blank is prepared：Using step, (i) metal wire rod is made by melting as raw material in middle dispensing, unidirectional by moveable scissor
Metal wire rod is blocked in movement, and cylindrical blank is made；
(iii) cold-heading：The cylindrical blank is subjected to cold-heading molding using cold-heading equipment, the screw head of bolt is formed by mould molding
And screw rod；
(iv) threading：Screw thread is rubbed on the screw rod of bolt using threading equipment, comprised the following steps that
A, first time threading, shallow thread is rubbed on the screw rod of screw using threading equipment；
B, second of threading, threading is carried out on the shallow thread on the screw rod of screw using threading equipment and deepens to rub final spiral shell
Line；
C, cleaning is deoiled；
(v) bolt is heat-treated, concrete technology is：
A, heat：Bolt is heated to 770 DEG C, and is incubated 1-2 hours；
B, cool down：Use the air-cooled cooldown rate with 9 DEG C/s to accelerate bolt after being cooled to 400 DEG C, then be air-cooled to room temperature；
C, once it is tempered：After bolt is heated into 500 DEG C of tempering 75min, accelerate to be cooled to 300 DEG C with 13 DEG C/s cooldown rate
Afterwards, then it is air-cooled to room temperature；
D, bolt is heated to 770 DEG C, quenching 35min is carried out in quenching oil, then be air-cooled to room temperature；
E, double tempering：By the bolt after quenching be heated to 560 DEG C tempering 45min, after be air-cooled to room temperature；
F, cleaning is deoiled；
(vi) bolt is put into electrolyte, is switched on power using bolt as anode and carry out anodic oxidation, the voltage of anodic oxidation is
700V, the electric current of anodic oxidation is 3 amperes/square decimeter, and the power supply is the pulse power, and the frequency of the pulse power is
1100 hertz, dutycycle 28%；
(vii) wear-resistant paint is applied in bolt surface, the wear-resistant paint includes first and second liang of equal components of mass fraction, the first
Second includes following components in terms of mass fraction：
Composition in the first component includes following components according to the mass fraction：
E-20 epoxy resin：5 parts, silicon carbide micro-powder：13 parts, coupling agent：10 parts, methyl methacrylate：23 parts, vinyl three
Ethoxysilane：18 parts；Solvent：27 parts；
The second component is in terms of mass fraction including containing following component：
Curing agent：30 parts, infusion：15 parts, levelling agent：6 parts, solvent：12 parts；
Wherein, the silicon carbide micro-powder is black silicon carbide and particle diameter is 8 μm；The coupling agent is gamma-aminopropyl-triethoxy silicon
Alkane；
(viii) clean and dry；
(ix) pack.
The present invention is not limited to above-described embodiment.All technical schemes formed using equivalent substitution, all falling within the present invention will
The protection domain asked.
Claims (3)
- A kind of 1. production technology of the automobile using bolt of high intensity, it is characterised in that：Comprise the following steps：(i) dispensing：The mass percent of each composition is in the automobile using bolt of the high intensity：C：0.01-0.02%, Fe: 1.16-1.33%,Zn:1.15-1.56%,Mn：0.17-0.24%, Cr：0.33-0.56%, Ni：0.15-0.34%, Mo：0.01- 0.05%, Ti：12.33-15.52%, Pd：0.33-0.43%,Pt：0.05-0.11%, Nd：0.14-0.32%,Ce：0.12- 0.18%,Eu：0.03-0.04%,Lu:0.03-0.07%, Ga：0.13-0.22%, Y：0.01-0.03%, Sn：0.16-0.27%, Zr：0.02-0.05%, Re：0.01-0.03%, manganese dioxide：0.02-0.05%, surplus Al；(ii) cylindrical blank is prepared：Using step, (i) metal wire rod is made by melting as raw material in middle dispensing, unidirectional by moveable scissor Metal wire rod is blocked in movement, and cylindrical blank is made；(iii) cold-heading：The cylindrical blank is subjected to cold-heading molding using cold-heading equipment, the screw head of bolt is formed by mould molding And screw rod；(iv) threading：Screw thread is rubbed on the screw rod of bolt using threading equipment, comprised the following steps thatA, first time threading, shallow thread is rubbed on the screw rod of screw using threading equipment；B, second of threading, threading is carried out on the shallow thread on the screw rod of screw using threading equipment and deepens to rub final spiral shell Line；C, cleaning is deoiled；(v) bolt is heat-treated, concrete technology is：A, heat：Bolt is heated to 750-770 DEG C, and is incubated 1-2 hours；B, cool down：Use the air-cooled cooldown rate with 8-9 DEG C/s to accelerate bolt after being cooled to 350-400 DEG C, then be air-cooled to room Temperature；C, once it is tempered：After bolt is heated into 450-500 DEG C of tempering 65-75min, accelerated with 10-13 DEG C/s cooldown rate After being cooled to 250-300 DEG C, then it is air-cooled to room temperature；D, bolt is heated to 770 DEG C, quenching 30-35min is carried out in quenching oil, then be air-cooled to room temperature；E, double tempering：By the bolt after quenching be heated to 510-560 DEG C tempering 40-45min, after be air-cooled to room temperature；F, cleaning is deoiled；(vi) bolt is put into electrolyte, is switched on power using bolt as anode and carry out anodic oxidation, the voltage of anodic oxidation is 700V, the electric current of anodic oxidation is 3 amperes/square decimeter, and the power supply is the pulse power, and the frequency of the pulse power is 1100 hertz, dutycycle 28%；(vii) wear-resistant paint is applied in bolt surface, the wear-resistant paint includes first and second liang of equal components of mass fraction, the first Second includes following components in terms of mass fraction：Composition in the first component includes following components according to the mass fraction：E-20 epoxy resin：5-8 parts, silicon carbide micro-powder：10-13 parts, coupling agent：10-15 parts, methyl methacrylate：20-25 Part, VTES：16-20 parts；Solvent：26-29 parts；The second component is in terms of mass fraction including containing following component：Curing agent：10-40 parts, defoamer：11-15 parts, levelling agent：2-8 parts, solvent：10-15 parts；Wherein, the silicon carbide micro-powder is black silicon carbide and particle diameter is 8 μm；The coupling agent is gamma-aminopropyl-triethoxy silicon Alkane；(viii) clean and dry；(ix) pack.
- 2. the production technology of the automobile using bolt of high intensity according to claim 1, it is characterised in that：Step (i) described in The mass percent of each composition is in the automobile using bolt of high intensity：C：0.01%, Fe:1.16%,Zn:1.15%,Mn：0.17%, Cr：0.33%, Ni：0.15%, Mo：0.01%, Ti：12.33%, Pd：0.33%,Pt：0.05%, Nd：0.14%,Ce：0.12%, Eu：0.03%,Lu:0.03%, Ga：0.13%, Y：0.01%, Sn：0.16%, Zr：0.02%, Re：0.01%, manganese dioxide： 0.02%, surplus Al.
- 3. the production technology of the automobile using bolt of high intensity according to claim 1, it is characterised in that：Step (i) described in The mass percent of each composition is in the automobile using bolt of high intensity：C：0.02%, Fe:1.33%,Zn:1.56%,Mn：0.24%, Cr：0.56%, Ni：0.34%, Mo：0.05%, Ti：15.52%, Pd：0.43%,Pt：0.11%, Nd：0.32%,Ce：0.18%, Eu：0.04%,Lu:0.07%, Ga：0.22%, Y：0.03%, Sn：0.27%, Zr：0.05%, Re：0.03%, manganese dioxide： 0.02%, surplus Al.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110438290A (en) * | 2019-07-13 | 2019-11-12 | 海盐县机械有限公司 | A kind of production technology of hex bolts |
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