CN106435428A - Self-lubricated lock cylinder - Google Patents
Self-lubricated lock cylinder Download PDFInfo
- Publication number
- CN106435428A CN106435428A CN201610989023.9A CN201610989023A CN106435428A CN 106435428 A CN106435428 A CN 106435428A CN 201610989023 A CN201610989023 A CN 201610989023A CN 106435428 A CN106435428 A CN 106435428A
- Authority
- CN
- China
- Prior art keywords
- nicr
- self
- graphene
- lock core
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/16—Use of special materials for parts of locks
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a self-lubricated lock cylinder. The surface of the lock cylinder is provided with a plasma spraying Cr3C2-NiCr-graphene coating with the thickness being 20-30 microns. The friction coefficient and the wear rate of the self-lubricated lock cylinder are both reduced through the coating. The coating has a low friction coefficient and has more excellent wear resistance than that of a Cr coating. At all loads, the wear rate is reduced by more than 50% compared with the wear rate of a base body.
Description
Technical field
The present invention relates to lock technology field, more particularly, to a kind of self-lubricating lock core and preparation method thereof.
Background technology
Lockset has referred to the utensil of sealing process, and it includes lock, key and its adnexa, and general explanation is " must to use key
That can absolve seals device ", now, lockset is except with addition to key operated, using up, the instruction such as electricity, magnetic, sound and fingerprint opens
Open.The lockset being most widely used at present, remains based on key opening and closing.
Typical lockset, it includes lock housing and the lock core being arranged in lock housing, lock core is provided with dead bolt, and sets in lock housing
It is equipped with lockhole, lockset also includes：Lockhole block piece, lockhole flight position adjustable ground blocks one end away from dead bolt in lockhole,
And after in the drive end insertion lockhole of the key of lockset, the drive end of key promotes the motion of lockhole block piece so that drive end and lock core
It is connected.
The major function of lock core is to transmit torsion by head, thus driving the miscellaneous part of lock, reaches unlocking and locking.Hang
The lock core head construction of lock, drawer-lock, door lock and bicycle lock is not quite similar, and the mode of transmission torsion is also different, but effect
It is the same.
But in actual use, due to abrasion, foreign body, getting rusty, leading to lock core to rotate difficult, thus being difficult to out
Lock, brings very big inconvenience to life.
Content of the invention
It is an object of the invention to proposing a kind of self-lubricating lock core and preparation method thereof, enabling to lock core and carrying lubrication work(
Can, non-corrosive, lock core pivoting friction resistance is little.
For reaching this purpose, the present invention employs the following technical solutions：
A kind of self-lubricating lock core, the described plug face that it adopts has the plasma spraying Cr of 20-30 μ m thick3C2-
NiCr- graphite ene coatings.
Cr of the present invention3C2- NiCr- Graphene is Cr3C2With NiCr and Graphene as a component according to weight
Than (5～3):(2～1):1 mixes.Preferably, described weight is than for 4:1:1.
Described mixing is using planetary ball mill and centrifugal spraying granulator, coating to be dusted.Its technique includes：
(1) by Cr3C2With NiCr, not reprecipitation is milled on planetary ball mill；
(2) Graphene is added to continue ball milling at least 10 minutes；
(3), when ball milling stops first 5 minutes, add organic binder ball milling, obtain suspension；
(4) suspension is carried out mist projection granulating, obtain Cr3C2- NiCr- Graphene agglomerated particle.
The present invention passes through plasma spraying by described Cr3C2- NiCr- Graphene agglomerated particle sprays on lock core.Described etc.
Plasma spray, its electric current is 400-700A, and voltage is 30-70V, main gas argon flow amount 50-140L/min, powder feed rate 25-
60g/min.Preferably, electric current is 550A, voltage 30V, argon flow amount 50L/min.
The composite coating thickness of the present invention is about 20-30 μm, and its hardness significantly improves, more than 500HV compared with matrix0.2.With
When, composite coating adds Graphene crystal grain refined, average grain size drops to 20nm.
The coating of the present invention makes coefficient of friction and wear rate reduce simultaneously, has relatively low coefficient of friction, has simultaneously
The wearability more excellent than Cr coating.Under each load, wear rate reduces by more than 50% than matrix.
Specific embodiment
To further illustrate technical scheme below by specific embodiment.
Embodiment 1
A kind of self-lubricating lock core, described plug face has the plasma spraying Cr of 20 μ m thick3C2- NiCr- Graphene applies
Layer.
The plasma spraying Cr that described plug face has3C2- NiCr- graphite ene coatings, are prepared via a method which
Arrive：
Using planetary ball mill and centrifugal spraying granulator, coating material is dusted.Its technique includes：
(1) by Cr3C2With NiCr, not reprecipitation is milled on planetary ball mill；
(2) Graphene is added to continue ball milling at least 10 minutes；
(3), when ball milling stops first 5 minutes, add organic binder ball milling, obtain suspension；
(4) suspension is carried out mist projection granulating, obtain Cr3C2- NiCr- Graphene agglomerated particle.
By plasma spraying by described Cr3C2- NiCr- Graphene agglomerated particle sprays in plug face.Described grade from
Son spraying, its electric current is 550A, voltage 30V, argon flow amount 50L/min.
Cr3C2With NiCr and Graphene as a component according to weight by weight than for 4:1:1 mixes.
Comparative example 1
Omit the Graphene of embodiment 1, remaining is same as Example 1.
Comparative example 2
Omit the NiCr of embodiment 1, remaining is same as Example 1.
Comparative example 3
Omit the Cr of embodiment 13C2, remaining is same as Example 1.
The coating of comparative example 1-3, equally can play lubrication, but described lubricant effect is slightly worse, simply compared to not containing
The lock core of coating, improves.The lubricant effect of embodiment 1 will be substantially better than comparative example 1-3, and wear time is long, plays profit
The sliding time is also significantly longer.That is, 3 kinds of material mixing of the present invention, play synergism.
Claims (5)
1. a kind of self-lubricating lock core, described plug face has the plasma spraying Cr of 20-30 μ m thick3C2- NiCr- Graphene
Coating.
2. self-lubricating lock core as claimed in claim 1 is it is characterised in that described Cr3C2- NiCr- Graphene is Cr3C2With
NiCr with Graphene as a component according to weight ratio (5～3):(2～1):1 mixes；Preferably, described weight ratio is
4:1:1.
3. self-lubricating lock core as claimed in claim 1 or 2 it is characterised in that described mixing be using planetary ball mill and from
Coating is dusted by heart sponging granulator, and its technique includes：
(1) by Cr3C2With NiCr, not reprecipitation is milled on planetary ball mill；
(2) Graphene is added to continue ball milling at least 10 minutes；
(3), when ball milling stops first 5 minutes, add organic binder ball milling, obtain suspension；
(4) suspension is carried out mist projection granulating, obtain Cr3C2- NiCr- Graphene agglomerated particle.
4. the self-lubricating lock core as described in one of claim 1-3 is it is characterised in that by plasma spraying by described Cr3C2-
NiCr- Graphene agglomerated particle sprays to and obtains described coating on lock core.
5. it is characterised in that described plasma spraying, its electric current is the self-lubricating lock core as described in one of claim 1-4
400-700A, voltage is 30-70V, main gas argon flow amount 50-140L/min, powder feed rate 25-60g/min；Preferably, electric current
For 550A, voltage 30V, argon flow amount 50L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989023.9A CN106435428A (en) | 2016-11-10 | 2016-11-10 | Self-lubricated lock cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989023.9A CN106435428A (en) | 2016-11-10 | 2016-11-10 | Self-lubricated lock cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106435428A true CN106435428A (en) | 2017-02-22 |
Family
ID=58208347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610989023.9A Pending CN106435428A (en) | 2016-11-10 | 2016-11-10 | Self-lubricated lock cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106435428A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047757A (en) * | 2018-09-08 | 2018-12-21 | 佛山朝鸿新材料科技有限公司 | A kind of preparation method of lock core Self-lubrication New Materials |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04320494A (en) * | 1991-04-18 | 1992-11-11 | Nippon Steel Corp | Self-lubricating material and its preparation |
| CN101724803A (en) * | 2008-10-16 | 2010-06-09 | 北京有色金属研究总院 | Preparation method of composite powder for high-temperature wear-resisting self-lubricating coating |
| CN101758219A (en) * | 2009-12-28 | 2010-06-30 | 天津大族烨峤激光技术有限公司 | Iron-based alloy material for laser repair of rotor main shaft and manufacturing method thereof |
| CN202157592U (en) * | 2010-07-23 | 2012-03-07 | 何汉中 | Lock core lubricant injector |
| CN102836996A (en) * | 2012-07-13 | 2012-12-26 | 苏州大学 | Solid lubricating high-temperature anti-wearing powder composition and preparation method of compound coating of composition |
-
2016
- 2016-11-10 CN CN201610989023.9A patent/CN106435428A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04320494A (en) * | 1991-04-18 | 1992-11-11 | Nippon Steel Corp | Self-lubricating material and its preparation |
| CN101724803A (en) * | 2008-10-16 | 2010-06-09 | 北京有色金属研究总院 | Preparation method of composite powder for high-temperature wear-resisting self-lubricating coating |
| CN101758219A (en) * | 2009-12-28 | 2010-06-30 | 天津大族烨峤激光技术有限公司 | Iron-based alloy material for laser repair of rotor main shaft and manufacturing method thereof |
| CN202157592U (en) * | 2010-07-23 | 2012-03-07 | 何汉中 | Lock core lubricant injector |
| CN102836996A (en) * | 2012-07-13 | 2012-12-26 | 苏州大学 | Solid lubricating high-temperature anti-wearing powder composition and preparation method of compound coating of composition |
Non-Patent Citations (2)
| Title |
|---|
| 中国科学技术协会等: "《机械工程学科发展报告(摩擦学) 2014-2015》", 30 April 2016, 中国科学技术出版社 * |
| 赵世海: "微纳米材料涂层对提高冶金风机耐磨损性能的研究", 《万方学位论文》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047757A (en) * | 2018-09-08 | 2018-12-21 | 佛山朝鸿新材料科技有限公司 | A kind of preparation method of lock core Self-lubrication New Materials |
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Application publication date: 20170222 |