CN108488183A - The zinc-aluminium coating process of nylon locking nut - Google Patents
The zinc-aluminium coating process of nylon locking nut Download PDFInfo
- Publication number
- CN108488183A CN108488183A CN201810123343.5A CN201810123343A CN108488183A CN 108488183 A CN108488183 A CN 108488183A CN 201810123343 A CN201810123343 A CN 201810123343A CN 108488183 A CN108488183 A CN 108488183A
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- Prior art keywords
- zinc
- nylon
- aluminium
- nut
- coating
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- Granted
Links
- 239000004677 Nylon Substances 0.000 title claims abstract description 77
- 229920001778 nylon Polymers 0.000 title claims abstract description 77
- 229910000611 Zinc aluminium Inorganic materials 0.000 title claims abstract description 65
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 238000000576 coating method Methods 0.000 title claims abstract description 56
- 239000011248 coating agent Substances 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000005422 blasting Methods 0.000 claims abstract description 20
- 238000007654 immersion Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000007423 decrease Effects 0.000 claims abstract description 7
- 238000005119 centrifugation Methods 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 18
- 230000000873 masking effect Effects 0.000 claims description 18
- 238000009835 boiling Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000000703 high-speed centrifugation Methods 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 150000002632 lipids Chemical class 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 230000007928 solubilization Effects 0.000 claims description 4
- 238000005063 solubilization Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 239000000047 product Substances 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005213 imbibition Methods 0.000 abstract description 2
- 239000013589 supplement Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 125000003368 amide group Chemical group 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229920002302 Nylon 6,6 Polymers 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- -1 amido hydrogen Chemical compound 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000011165 process development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 230000010148 water-pollination Effects 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
- F16B33/00—Features common to bolt and nut
- F16B33/008—Corrosion preventing means
-
- 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
- F16B37/00—Nuts or like thread-engaging members
Abstract
The invention discloses a kind of zinc-aluminium coating process of nylon locking nut, include the following steps successively：1) nut is molded；2) oil removing is cleaned；3) impeller blasting；4) first time zinc-aluminium is coated with；5) riveting nylon；6) second of zinc-aluminium coating；7) immersion is handled；8) room temperature face applies；Alternatively, including the following steps successively：1) nut is molded；2) oil removing is cleaned；3) impeller blasting；4) riveting nylon；5) first time zinc-aluminium is coated with；6) second of zinc-aluminium coating；7) immersion is handled；8) room temperature face applies.The beneficial effects of the present invention are：1, after impeller blasting being moved to after riveting nylon process, damage that can be to avoid ball blast to nylon ring.2, immersion processing is carried out to the product of zinc-aluminium coating：Using the water imbibition of nylon, the moisture lost by high-temperature baking in supplement nylon ring, after immersion is handled, the young modulus of material and bending modulus of nylon ring all decline, and assembly experiment is qualified, and there is a phenomenon where burst.
Description
Technical field
The present invention relates to the zinc-aluminium paintings in nylon locking nut processing technology field, more particularly to nylon locking nut to return to work
Skill.
Background technology
Nylon locking nut (hereinafter referred to as nylon nut) is to utilize the friction between embedded nylon ring and bolt thread
Power prevents bolt connection pair from loosening a kind of stop nut to fail.
The non-bearing end of nylon nut internal thread is opened there are one the moderate groove of width, inlays a raised Buddhist nun here
Long Quan.When nut and bolts assemblies, the external screw thread row of nylon ring and bolt is mutually squeezed, " is embraced to reach at interference fit
Tightly " the purpose of bolt.Auxiliary connection will produce connection by the effect for the power that impulses and loosen, since nylon ring and bolt interference fit produce
Raw flexible deformation, the moment of friction for providing the rotation of an impedance bolt to screw thread always reach to prevent auxiliary connection from loosening
The purpose of nut anti-looseness locking.
Polyamide is also known as nylon, is the thermoplastic resin general name for containing recurring amide radical group-NHCO-on molecular backbone.
More generally nylon -66 is used in nylon nut.
Amide groups is polar group, be all polar molecule hydrone it is affinity.So one of nylon is important
The characteristics of be its hydrophily, the height of moisture content has significant correlation to every mechanical property of material.Nylon be by
Product made of diamine and binary acid dehydrating condensation, hydrolysis are then the inverse process of the reaction, and polycondensation is the one of nylon with hydrolysis
To balanced reaction, in material the presence of water can cause nylon molecules generate degradation.When the water absorption rate of material increases, molecule
Palliating degradation degree also increases therewith.The direct result of molecular degradation is that polymer molecular weight declines.On the other hand, weight in nylon segment
Existing amide group of appearing again is polar group, can be combined to form very strong hydrogen bond with the carbonyl on another amide group, and is made
The crystallization degree of polymer increases.But after aqueous in material, due to the part carbonyl in segment will in amido hydrogen be detached from and
Hydrogen bond is formed with hydrone, the crystallinity of nylon is made to decline.The two reasons lead to increase of the nylon with water absorption rate, and show
For：It is easy to stretch, the Young's modulus and bending modulus of material are decreased obviously.
Nylon for Automobile nut must carry out zinc-aluminium coating anti-corrosion treatment.The anticorrosion that each cart enterprise is approved at present applies
Material, be required to carry out high-temperature baking, 350 DEG C of highest, minimum 180 DEG C.Under such treatment temperature, nylon dehydration can be caused,
It cracks in assembling process nylon ring.
Shown in Figure 1, the current traditional handicraft that zinc-aluminium coating is carried out to nylon nut includes nut molding, riveting successively
Nylon, cleaning oil removing, impeller blasting, first time zinc-aluminium coating, second zinc-aluminium coating, room temperature face is pressed to apply, but such work
Skill has the following problems：
1, after nut riveting nylon, in ball blast process, the shot of high speed injection can damage nylon part.Shot is straight simultaneously
Diameter is 0.3mm, it is easy to which the gap between embedded nylon ring and nut causes bolt can not precession nut in assembly.
2, the high-temperature baking of zinc-aluminium coating reduces the water content of nylon66 fiber.So that the Young's modulus of nylon rises, show as
Nylon ring bursts after assembly, loses moment of friction, " can not hold " bolt tightly.
Invention content
It is an object of the invention to the above-mentioned insufficient and defects for the prior art, provide a kind of zinc of nylon locking nut
Aluminium coating process, to solve the above problems.
Following technical scheme may be used to realize in technical problem solved by the invention：
The zinc-aluminium coating process of nylon locking nut, which is characterized in that include the following steps successively：
1) nut is molded；
2) oil removing is cleaned；
3) impeller blasting；
4) first time zinc-aluminium is coated with；
5) riveting nylon；
6) second of zinc-aluminium coating；
7) immersion is handled；
8) room temperature face applies；Alternatively,
Include the following steps successively：
1) nut is molded；
2) oil removing is cleaned；
3) impeller blasting；
4) riveting nylon；
5) first time zinc-aluminium is coated with；
6) second of zinc-aluminium coating；
7) immersion is handled；
8) room temperature face applies.
In a preferred embodiment of the invention, the method for processing of soaking is：By the product after zinc-aluminium is coated with into
Row immersion is handled, and restores the elastic property of nylon ring, heats the water to 40-60 DEG C, soaking time 30-40min, recycles 200-
300rpm rotating speed centrifuge drippings, centrifugation time are finally to dry 20-30min under 60-80 DEG C of temperature condition more than 2min.
In a preferred embodiment of the invention, the method for cleaning oil removing is：Nut is carried out using organic solvent clear
It washes, the greasy dirt on nut surface is cleaned up, greasy dirt can reduce the binding force between coating and base material, and cleaning process can divide
For：It slightly washes, clean, evaporate and cools down, as lipid solubilization is in organic washing agent, the boiling point of mixed liquor will decline, it is desirable that
The boiling point of mixed liquor must not be higher than 42.1 DEG C, and the time of slightly washing, clean, evaporating the processing of three stations is more than 240 seconds.
In a preferred embodiment of the invention, the method for impeller blasting is：Using the shot ejected at a high speed, to spiral shell
Matrix face carries out Shot Blasting, removes rust, oxide skin and the other impurities on nut surface, and ball blast electric current must be controlled in 15-
22A.Ball blast time 8-16min.
In a preferred embodiment of the invention, the method for zinc-aluminium coating is：Nut is impregnated in zinc-aluminium masking liquid, and
In centrifugation apparatus, using high speed centrifugation mode, extra zinc-aluminium masking liquid is got rid of, the viscosity of zinc-aluminium masking liquid was controlled at 35-55 seconds,
Temperature when coating is 10-35 DEG C, and centrifugal rotational speed when centrifugation is 200-300rpm, centrifugation time 1-4min, baking temperature：
180-330℃。
In a preferred embodiment of the invention, the method for room temperature face painting is：One layer of covering on Aluminum Coating surface
Coating with lubrication property makes the nylon nut after coating have stable, controllable frictional behavior, in order to combine peace
Dress, the solidification temperature that room temperature face applies must not exceed 60-80 DEG C, and hardening time must not exceed 10-20min.
As a result of technical solution as above, the beneficial effects of the present invention are：
1, after impeller blasting being moved to after riveting nylon process, damage that can be to avoid ball blast to nylon ring.
2, immersion processing is carried out to the product of zinc-aluminium coating：Nylon ring after zinc-aluminium is coated with high-temperature process can be dehydrated,
Directly using the explosion for generating nylon ring, new process development immersion treatment process utilizes the water imbibition of nylon, supplements nylon ring
The interior moisture lost by high-temperature baking, after immersion is handled, the young modulus of material and bending modulus of nylon ring all decline,
Assembly experiment is qualified, and there is a phenomenon where burst.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the flow chart of traditional handicraft.
Fig. 2 is the flow chart of an embodiment of the present invention.
Fig. 3 is the flow chart of another embodiment of the invention.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, below into
One step illustrates the present invention.
Embodiment 1
The zinc-aluminium coating process of nylon locking nut shown in Figure 2, includes the following steps successively：
1) nut is molded：By nut machine-shaping, and preset riveting press groove.
2) oil removing is cleaned：Nut is cleaned using organic solvent, the greasy dirt on nut surface is cleaned up, greasy dirt meeting
The binding force between coating and base material is reduced, cleaning process can be divided into：It slightly washes, clean, evaporate and cools down, with lipid solubilization
In organic washing agent, the boiling point of mixed liquor will decline, it is desirable that and the boiling point of mixed liquor must not be higher than 42.1 DEG C, slightly wash, clean,
The time for evaporating the processing of three stations is more than 240 seconds.
3) impeller blasting：Using the shot ejected at a high speed, Shot Blasting is carried out to nut surface, removes nut surface
Rust, oxide skin and other impurities, ball blast electric current must be controlled in 15-22A.Ball blast time 8-16min.
4) first time zinc-aluminium is coated with：Nut is impregnated in zinc-aluminium masking liquid, and in centrifugation apparatus, using high speed centrifugation side
Formula gets rid of extra zinc-aluminium masking liquid, and it is 10-35 DEG C that the viscosity of zinc-aluminium masking liquid, which controls the temperature at 35-55 seconds, coating, centrifugation
When centrifugal rotational speed be 200-300rpm, centrifugation time 1-4min, baking temperature：180-330℃.
5) riveting nylon：It will be in the reserved riveting press groove of nylon ring pressed-in nut.
6) second of zinc-aluminium coating：Nut is impregnated in zinc-aluminium masking liquid, and in centrifugation apparatus, using high speed centrifugation side
Formula gets rid of extra zinc-aluminium masking liquid, and it is 10-35 DEG C that the viscosity of zinc-aluminium masking liquid, which controls the temperature at 35-55 seconds, coating, centrifugation
When centrifugal rotational speed be 200-300rpm, centrifugation time 1-4min, baking temperature：180-330℃.
7) immersion is handled：Product after zinc-aluminium is coated with is subjected to immersion processing, restores the elastic property of nylon ring, it will
Water is heated to 40-60 DEG C, soaking time 30-40min, recycles 200-300rpm rotating speed centrifuge drippings, centrifugation time be more than
2min finally dries 20-30min under 60-80 DEG C of temperature condition.
8) room temperature face applies：On Aluminum Coating surface, one layer of coating with lubrication property of covering, makes the nylon after coating
Nut has stable, controllable frictional behavior, and in order to combine installation, the solidification temperature that room temperature face applies must not exceed 60-80
DEG C, hardening time must not exceed 10-20min.
Because the workpiece after ball blast must carry out zinc-aluminium coating at the appointed time, the first time zinc in the present embodiment
Aluminium is coated with procedure arrangement after impeller blasting, and the time is more abundant.
Embodiment 2
The zinc-aluminium coating process of nylon locking nut shown in Figure 3, includes the following steps successively：
1) nut is molded：By nut machine-shaping, and preset riveting press groove.
2) oil removing is cleaned：Nut is cleaned using organic solvent, the greasy dirt on nut surface is cleaned up, greasy dirt meeting
The binding force between coating and base material is reduced, cleaning process can be divided into：It slightly washes, clean, evaporate and cools down, with lipid solubilization
In organic washing agent, the boiling point of mixed liquor will decline, it is desirable that and the boiling point of mixed liquor must not be higher than 42.1 DEG C, slightly wash, clean,
The time for evaporating the processing of three stations is more than 240 seconds.
3) impeller blasting：Using the shot ejected at a high speed, Shot Blasting is carried out to nut surface, removes nut surface
Rust, oxide skin and other impurities, ball blast electric current must be controlled in 15-22A.Ball blast time 8-16min.
4) riveting nylon：It will be in the reserved riveting press groove of nylon ring pressed-in nut.
5) first time zinc-aluminium is coated with：Nut is impregnated in zinc-aluminium masking liquid, and in centrifugation apparatus, using high speed centrifugation side
Formula gets rid of extra zinc-aluminium masking liquid, and it is 10-35 DEG C that the viscosity of zinc-aluminium masking liquid, which controls the temperature at 35-55 seconds, coating, centrifugation
When centrifugal rotational speed be 200-300rpm, centrifugation time 1-4min, baking temperature：180-330℃.
6) second of zinc-aluminium coating：Nut is impregnated in zinc-aluminium masking liquid, and in centrifugation apparatus, using high speed centrifugation side
Formula gets rid of extra zinc-aluminium masking liquid, and it is 10-35 DEG C that the viscosity of zinc-aluminium masking liquid, which controls the temperature at 35-55 seconds, coating, centrifugation
When centrifugal rotational speed be 200-300rpm, centrifugation time 1-4min, baking temperature：180-330℃.
7) immersion is handled：Product after zinc-aluminium is coated with is subjected to immersion processing, restores the elastic property of nylon ring, it will
Water is heated to 40-60 DEG C, soaking time 30-40min, recycles 200-300rpm rotating speed centrifuge drippings, centrifugation time be more than
2min finally dries 20-30min under 60-80 DEG C of temperature condition.
8) room temperature face applies：On Aluminum Coating surface, one layer of coating with lubrication property of covering, makes the nylon after coating
Nut has stable, controllable frictional behavior, and in order to combine installation, the solidification temperature that room temperature face applies must not exceed 60-80
DEG C, hardening time must not exceed 10-20min.
Because the workpiece after ball blast must carry out zinc-aluminium coating at the appointed time, and impeller blasting process in the present embodiment
It is riveting nylon and first time zinc-aluminium coating later, thus it is relatively high to the rate request of riveting nylon, it needs in impeller blasting
Riveting nylon and first time zinc-aluminium coating are rapidly completed after process.
By nylon locking nut ratio made from nylon locking nut made from both above embodiment and existing traditional handicraft
Compared with performance such as the following table 1
Table 1
As seen from the above table, the damage that nylon locking nut made from present invention process can be to avoid ball blast to nylon ring, dress
Qualified with experiment, there is a phenomenon where burst.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. the zinc-aluminium coating process of nylon locking nut, which is characterized in that include the following steps successively：
1) nut is molded；
2) oil removing is cleaned；
3) impeller blasting；
4) first time zinc-aluminium is coated with；
5) riveting nylon；
6) second of zinc-aluminium coating；
7) immersion is handled；
8) room temperature face applies；Alternatively,
Include the following steps successively：
1) nut is molded；
2) oil removing is cleaned；
3) impeller blasting；
4) riveting nylon；
5) first time zinc-aluminium is coated with；
6) second of zinc-aluminium coating；
7) immersion is handled；
8) room temperature face applies.
2. the zinc-aluminium coating process of nylon locking nut as described in claim 1, which is characterized in that the method for processing of soaking
For：Product after zinc-aluminium is coated with is subjected to immersion processing, restores the elastic property of nylon ring, heats the water to 40-60 DEG C,
Soaking time 30-40min, it is more than 2min, finally in 60-80 to recycle 200-300rpm rotating speed centrifuge drippings, centrifugation time
20-30min is dried under DEG C temperature condition.
3. the zinc-aluminium coating process of nylon locking nut as described in claim 1, which is characterized in that the method for cleaning oil removing
For：Nut is cleaned using organic solvent, the greasy dirt on nut surface is cleaned up, greasy dirt can reduce coating and base material it
Between binding force, cleaning process can be divided into：It slightly washes, clean, evaporate and cools down, as lipid solubilization is in organic washing agent,
The boiling point of mixed liquor will decline, it is desirable that the boiling point of mixed liquor must not be higher than 42.1 DEG C, slightly wash, clean, evaporating at three stations
The time of reason is more than 240 seconds.
4. the zinc-aluminium coating process of nylon locking nut as described in claim 1, which is characterized in that the method for impeller blasting
For：Using the shot ejected at a high speed, Shot Blasting is carried out to nut surface, remove the rust on nut surface, oxide skin and its
His impurity, ball blast electric current must be controlled in 15-22A.Ball blast time 8-16min.
5. the zinc-aluminium coating process of nylon locking nut as described in claim 1, which is characterized in that the method for zinc-aluminium coating
For：Nut is impregnated, and in centrifugation apparatus in zinc-aluminium masking liquid, using high speed centrifugation mode, gets rid of extra zinc-aluminium masking liquid,
It is 10-35 DEG C that the viscosity of zinc-aluminium masking liquid, which controls the temperature at 35-55 second, coating, and centrifugal rotational speed when centrifugation is 200-
300rpm, centrifugation time 1-4min, baking temperature：180-330℃.
6. the zinc-aluminium coating process of nylon locking nut as described in claim 1, which is characterized in that the method that room temperature face applies
For：One layer of coating with lubrication property of covering on Aluminum Coating surface, make the nylon nut after coating have it is stable, can
The frictional behavior of control, in order to combine installation, the solidification temperature that room temperature face applies must not exceed 60-80 DEG C, and hardening time must not surpass
Cross 10-20min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123343.5A CN108488183B (en) | 2018-02-07 | 2018-02-07 | Zinc-aluminum coating process for nylon lock nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123343.5A CN108488183B (en) | 2018-02-07 | 2018-02-07 | Zinc-aluminum coating process for nylon lock nut |
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| Publication Number | Publication Date |
|---|---|
| CN108488183A true CN108488183A (en) | 2018-09-04 |
| CN108488183B CN108488183B (en) | 2020-03-20 |
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| CN201810123343.5A Active CN108488183B (en) | 2018-02-07 | 2018-02-07 | Zinc-aluminum coating process for nylon lock nut |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331322A (en) * | 2020-03-20 | 2020-06-26 | 海盐沛泓汽车零部件有限公司 | Production process of nylon lock nut |
| CN112427273A (en) * | 2020-11-13 | 2021-03-02 | 温州市金邦五金有限公司 | Composite zinc impregnation surface treatment process for super corrosion-resistant nylon locknut |
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| CN105750884A (en) * | 2016-05-06 | 2016-07-13 | 上海东风汽车专用件有限公司 | Nylon locking nut press |
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| CN102774114A (en) * | 2011-05-10 | 2012-11-14 | 上海建冶科技工程股份有限公司 | Metal anticorrosion coating and electric arc spraying process thereof |
| CN103316828A (en) * | 2013-05-28 | 2013-09-25 | 中国船舶重工集团公司第七二五研究所 | Production method for ship fastener complex coating |
| CN103788641A (en) * | 2014-01-22 | 2014-05-14 | 李嘉 | Technology for increasing nylon strength and toughness |
| CN205136296U (en) * | 2015-11-19 | 2016-04-06 | 上海申光高强度螺栓有限公司 | It is vice to turn round type of cutting bolted connection |
| CN105750884A (en) * | 2016-05-06 | 2016-07-13 | 上海东风汽车专用件有限公司 | Nylon locking nut press |
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| CN111331322A (en) * | 2020-03-20 | 2020-06-26 | 海盐沛泓汽车零部件有限公司 | Production process of nylon lock nut |
| CN112427273A (en) * | 2020-11-13 | 2021-03-02 | 温州市金邦五金有限公司 | Composite zinc impregnation surface treatment process for super corrosion-resistant nylon locknut |
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