CN106435539A - Improved nickel-phosphorus composite chemical plating liquid of vehicle air conditioning compressor swash plate - Google Patents
Improved nickel-phosphorus composite chemical plating liquid of vehicle air conditioning compressor swash plate Download PDFInfo
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- CN106435539A CN106435539A CN201610577955.2A CN201610577955A CN106435539A CN 106435539 A CN106435539 A CN 106435539A CN 201610577955 A CN201610577955 A CN 201610577955A CN 106435539 A CN106435539 A CN 106435539A
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- chemical plating
- air conditioning
- additive
- conditioning compressor
- plating solution
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- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
- C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
- C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites
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- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemically Coating (AREA)
Abstract
The invention discloses an improved nickel-phosphorus composite chemical plating liquid of a vehicle air conditioning compressor swash plate, wherein the improved nickel-phosphorus composite chemical plating liquid comprises nickel sulfate with a concentration of 20-30 g/L, sodium hypophosphite with a concentration of 20-30 g/L, sodium acetate with a concentration of 5-12 g/L, a complexing agent with a concentration of 25-50 g/L, an additive A with a concentration of 0.2-5 g/L, an additive B with a concentration of 2-20 g/L, a surfactant with a concentration of 1-10 ml/L, and the balance of water. According to the present invention, the nickel-phosphorus alloy wear-resistant layer is prepared on the ring shoulder surface of the vehicle air conditioning compressor swash plate through the chemical plating liquid, wherein the nickel-phosphorus alloy wear-resistant layer has the self-lubricating function so as to improve the wear resistance and prolong the service life of the compressor.
Description
Technical field
The invention belongs to automobile air conditioner compressor manufacture technology field, particularly relate to the life of compressor slanting plate wear-resistant alloy layer
Product method.
Background technology
With the development of automobile manufacture industry, the research of automobile air conditioning technology is more and more faster.Automobile air conditioner compressor is it
In core component, automobile air conditioner compressor generally uses swash plate round piston to be compressed, and swash plate High Rotation Speed is up to 3000
Turning/min, therefore wearability requires very high.Swash plate in current compressor of air conditioner generally uses split type, i.e. has in the middle part of swash plate
Motor drives the part rotating to use cast iron or stainless steel to make, and the ring of swash plate excircle shoulder（Because of High Rotation Speed and other portions
Part rubs）Then use copper alloy, and prepare chromium-molybdenum alloy layer at copper alloy surface thus improve its wearability.Use
The swash plate cost of this mode is very high, and the only cost of ring shoulder is accomplished by dozens of yuan, and owing to using split-type structural, therefore by force
Spend and limited operationally easily occur that abrasion deviation causes the life-span short.
Disclosed in the patent of invention of Patent No. 201310254119.7 a kind of for air-conditioning compressor swashplate high abrasion
Although the chemical nickel that nickel-phosphorus alloy plating solution obtains has higher anti-wear performance relative to cobalt-molybdenum alloy, but due to organic interpolation
The existence of agent will also result in adhesion difference while improving the consistency of coating and brightness and self-lubricating effect is limited, more by
When having found that in long-term practical experience swash plate also to receive upper and lower undulatory motion for a long time while making High Rotation Speed
Roll impact so that the true anti-wear performance of swash plate promotes limited.
Content of the invention
Goal of the invention：For the problem and shortage of above-mentioned existing existence, it is an object of the invention to provide a kind of automobile empty
Adjust compressor slanting plate modified nickel phosphorus composite chemical plating solution.
Technical scheme：For achieving the above object, the present invention is by the following technical solutions：A kind of automobile air conditioner compressor
Swash plate modified nickel phosphorus composite chemical plating solution, is made up of the material of following concentration：
Nickel sulfate 20～30 g/L；
Sodium hypophosphite 20～30g/L；
Sodium acetate 5～12g/L；
Organic acid complexing agent 25～50g/L；
Additive A 0.2～5g/L
Additive B 2～20g/L；
Surfactant 1～10ml/L；
And the water of surplus；
Wherein, described additive A is the mixture of KIO3, cerous sulfate and ammonium molybdate；Described organic acid complexing agent is lactic acid, apple
Acid or glycine.
As preferably, described additive B is the mixed dispersant of nano silicon and graphite powder.
As preferably, in described additive B, the mass ratio of nano silicon and graphite powder is 1:1～4.
As preferably, described silica and graphite powder divide in the deionized water high speed being added with surfactant
Dissipate and form suspension, standby.
As preferably, the particle diameter of described nano silicon is 10～40nm.
As preferably, described surfactant is low bubble nonionic surfactant.Shanghai is rich easy and chemical company
8550
As preferably, described chemical plating fluid passes through dilute sulfuric acid or ammoniacal liquor regulation pH value between 4～6.
As preferably, the content KIO3 of each component in described additive A：Cerous sulfate：Ammonium molybdate=4:1:1.
As preferably, nickel sulfate 25g/L, sodium hypophosphite 26g/L, sodium acetate 6g/L, lactic acid 32g/L, additive A is
2g/L, additive B is 12g/L, and surfactant is 4ml/L.
Beneficial effect：Compared with prior art, the present invention has the following advantages：Obtained by titania-doped and graphite powder
To ni-p alloy coating, there is higher wearability and self-lubricating effect；Utilize impact nickel bottoming, reject organic brightener and to it
Remaining component carries out content Matching and modification, thus enhances the adhesion of coating greatly, and simultaneously maximized elimination thus may
The plating solution de-stabilising effect bringing；Preferably low bubble nonionic agent improve silica and graphite powder in the plating solution point
Divergence, and reduce deposition on discrete particles for the chemical nickel.
Detailed description of the invention
It below in conjunction with specific embodiment, is further elucidated with the present invention, it should be understood that these embodiments are merely to illustrate the present invention
Rather than restriction the scope of the present invention, after having read the present invention, the various equivalences to the present invention for the those skilled in the art
The modification of form all falls within the application claims limited range.
The car air conditioning compressor slanting plate modified nickel phosphorus composite chemical plating solution of the present invention is for Patent No.
201310254119.7 the improvement of invention.Former chemical nickel coating is half light silvery white, and has higher hardness wearability,
But rolling impact at long High Rotation Speed planar friction and dipping and heaving, swash plate edge has certain probability to be occurred
Skin phenomenon, the wear-resisting intensity at the annular ring rolling impact up and down need to improve simultaneously.
The present invention the process for preparation of modified nickel phosphorus composite chemical plating solution as follows：
The preparation of additive：Additive A is the mixture of KIO3, cerous sulfate and ammonium molybdate, the content KIO3 of each component：Sulfuric acid
Cerium：Ammonium molybdate=4:1:1.Additive B is the low alveolitoid nonionic surfactant adding 2ml/L in deionized water, for example, go up
8550 surfactants of Hai Boyi, are then 1 at 20～30nm SiO 2 powder and graphite powder according to mass ratio by particle diameter:
4 ratio dispersion in deionized water formed 100g/L gross weight concentration, and high speed dispersor high-speed stirred dispersion under shape
Become suspended slurries, standby.
The preparation of nickel-phosphorus alloy chemical plating fluid：Use and be lined with the PP coating bath of polytetrafluoroethylene (PTFE) or preferred enamel aqueduct,
Wherein to ensure the smooth surface of polytetrafluoroethylene floor, it is to avoid scratch and burr occur as far as possible.Then in coating bath, add 70%
Pure water is simultaneously heated to about 70 DEG C, adds the nickel sulfate of 25g/L of metering, after stirring and dissolving, add 6g/L sodium acetate and
The lactic acid dissolution of 32g/L is uniform.Continuously add the additive A of 2g/L and 8550 surfactants of 2ml/L and 80～150ml/L
Additive B, stir.It is subsequently added into the sodium hypophosphite of 26g/L, after stirring and dissolving with ammoniacal liquor or sulphur acid for adjusting pH value be
Between 4.6～4.9, and being warming up to 85～95 DEG C, last dispersed with stirring is uniform.
The preparation of nickel phosphorus composite alloy layer：It by above-mentioned swash plate parts after oil removing-washing-activation, is immersed in chemical plating
Liquid carries out the chemical deposition of nickel-phosphorus alloy, should during downward tracheae of giving vent to anger is set slightly inflates and guarantee additive B
Dispersed, simultaneously nickel-phosphorus alloy swash plate cast(ing) surface generation autoreduction deposit, sedimentation time controls at 2h, can obtain thickness
Degree is the nickel-phosphorus alloy coating of 20～25 μm.It finally is heat-treated at 400 DEG C.
Obtaining the canescence for obfuscation for the nickel-phosphorus alloy coating outward appearance, the full degree of filling and leading up of coating surface is high, nickel-phosphorus alloy after plating
Be directly over detection hardness up to 520～650HV, after Overheating Treatment, hardness is up to 1130HV, has very high hardness.Logical
Cross in the dense HNO3 that workpiece is immersed 67%, through 10min acid corrosion, have no the obvious variable color in surface.
Use deposition nickel-phosphorus alloy under iron sheet the same terms that 0.5mm is thick, and carry out 90 ° of bending 3 times repeatedly, nickel-phosphorus alloy
Layer and iron-based body do not find stripping, skin effect phenomenon, have splendid adhesion.
Additionally wear-resisting test is carried out to the wearability of alloy-layer：Using white fused alumina test block as to mill couple, and
MPX02000 type dish pin friction wear testing machine carries out wear test.Experimental condition：Room temperature, dry friction and wear, relative humidity
R1160%, load is 50N, and sample sliding speed is 3.99m/s, and to test total revolution be 1000 turns.The wear weight loss of the present invention
For 23mg, hinge structure has significantly improved.The more important thing is, nickel-phosphorus alloy surface of the present invention is from profit doped with graphite
Under the lubrication at machine oil is strengthened when sliding material is the contact of support hemisphere, substantially increase the mechanical endurance of swash plate.
The present invention mainly rejects original machine additive B, although reduce brightness and the consistency of nickel-phosphorus alloy, but benefit
It is that the adhesion being directly greatly improved coating avoids the coating at swash plate edge to peel off.
Meanwhile, present invention introduces the doping of silica and graphite, on the premise of substantially not reducing coating hardness
It owing to depression can be formed when nickel-phosphorus alloy is to the parcel of silica and graphite, is more conducive to storage lubricating oil, simultaneously graphite itself
There is self-lubricating effect, be therefore greatly improved its life-span under lubrication friction.It is not involved in autoreduction reaction owing to the addition of
Silica and graphite, being easily caused it affects the stability of chemical nickel plating solution as deposition crystal seed, and inventor reduces vinegar
Acid sodium（Reaction accelerator as plating solution）Amount, improve the content of complexing agent lactic acid and sodium hypophosphite simultaneously, such that it is able to
Improve bath stability as far as possible on the premise of ensureing certain reaction speed.In addition, surfactant of the present invention is except for dividing
Dissipate nano silicon and graphite powder prevents from, outside the effect reunited, also avoiding it to become the deposition crystal seed effect of chemical nickel.
Total well known, the mechanism of chemical nickel plating solution is spontaneous reduction, and common chemical nickel plates also poor stability, continuously
In the case of production, the life-span only has 2～4h.With produce carry out chemical nickel bath stability variation, in solution phosphorus content and
Byproduct of reaction generation accumulation can cause alloy-layer outward appearance dimmed, the degradation such as adhesion and corrosion resistance.The present invention adds
The effect of agent A is the chemical stability improving plating solution, and wherein KIO3 is main stabilizer control reduction reaction speed, cerous sulfate and molybdenum
Acid ammonium is the auxiliary main deposition compact degree improving alloy-layer.By additive A may insure that chemical nickel bath stability produce 4h with
On, such that it is able at least ensure the steady production of an order of classes or grades at school（Thus avoid single order of classes or grades at school need to again prepare plating solution）, and common
Chemical nickel is after carrying out producing 3 hours, and stability is difficult to be guaranteed.
Scrapping of chemical nickel plating solution：When chemical nickel plating 5 week after date, need to again prepare plating solution, such that it is able to guarantee to close
The quality of layer gold.The wherein said chemical nickel plating cycle refers to be 1 cycle when nickel ion magnitude of recruitment is initial concentration.
Preferably, described coating bath inwall is lined with polytetrafluoroethylene floor；And the firing equipment being immersed in plating solution
Polytetrafluoroethylene floor is also wrapped up on surface.
Claims (9)
1. a car air conditioning compressor slanting plate modified nickel phosphorus composite chemical plating solution, it is characterised in that by the material of following concentration
Composition：
Nickel sulfate 20～30 g/L；
Sodium hypophosphite 20～30g/L；
Sodium acetate 5～12g/L；
Organic acid complexing agent 25～50g/L；
Additive A 0.2～5g/L
Additive B 2～20g/L；
Surfactant 1～10ml/L；
And the water of surplus；
Wherein, described additive A is the mixture of KIO3, cerous sulfate and ammonium molybdate；Described organic acid complexing agent is lactic acid, apple
Acid or glycine.
2. car air conditioning compressor slanting plate modified nickel phosphorus composite chemical plating solution according to claim 1, it is characterised in that：Institute
State the mixed dispersant that additive B is nano silicon and graphite powder.
3. car air conditioning compressor slanting plate modified nickel phosphorus composite chemical plating solution according to claim 2, it is characterised in that：Institute
The mass ratio stating nano silicon and graphite powder in additive B is 1:1～4.
4. car air conditioning compressor slanting plate modified nickel phosphorus composite chemical plating solution according to claim 3, it is characterised in that：Institute
State described silica and graphite powder and disperse to be formed suspension in the deionized water high speed being added with surfactant, standby.
5. car air conditioning compressor slanting plate modified nickel phosphorus composite chemical plating solution according to claim 1, it is characterised in that：Institute
The particle diameter stating nano silicon is 10～40nm.
6. car air conditioning compressor slanting plate modified nickel phosphorus composite chemical plating solution according to claim 1, it is characterised in that：Institute
Stating surfactant is low bubble nonionic surfactant.
7. Shanghai rich easily and chemical company 8550.
Car air conditioning compressor slanting plate modified nickel phosphorus composite chemical plating solution according to claim 1, it is characterised in that：Described
Chemical plating fluid passes through dilute sulfuric acid or ammoniacal liquor regulation pH value between 4～6.
8. car air conditioning compressor slanting plate modified nickel phosphorus composite chemical plating solution according to claim 1, it is characterised in that：Institute
State the content KIO3 of each component in additive A：Cerous sulfate：Ammonium molybdate=4:1:1.
9., according to claim 1～8 arbitrary describedization car air conditioning compressor slanting plate modified nickel phosphorus composite chemical plating solution, it is special
Levy and be：Nickel sulfate 25g/L, sodium hypophosphite 26g/L, sodium acetate 6g/L, lactic acid 32g/L, additive A is 2g/L, additive B
For 12g/L, surfactant is 4ml/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610577955.2A CN106435539A (en) | 2016-07-21 | 2016-07-21 | Improved nickel-phosphorus composite chemical plating liquid of vehicle air conditioning compressor swash plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610577955.2A CN106435539A (en) | 2016-07-21 | 2016-07-21 | Improved nickel-phosphorus composite chemical plating liquid of vehicle air conditioning compressor swash plate |
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| Publication Number | Publication Date |
|---|---|
| CN106435539A true CN106435539A (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610577955.2A Pending CN106435539A (en) | 2016-07-21 | 2016-07-21 | Improved nickel-phosphorus composite chemical plating liquid of vehicle air conditioning compressor swash plate |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724874A (en) * | 2008-10-17 | 2010-06-09 | 上海宝钢设备检修有限公司 | Surface repairing method for thin-strip continuous casting crystallizing roller or casting blank continuous casting crystallizer |
| CN203051498U (en) * | 2012-12-28 | 2013-07-10 | 世林（漯河）冶金设备有限公司 | Nanometer composite electroplating self-lubricating shaft sleeve |
| CN103451636A (en) * | 2013-06-24 | 2013-12-18 | 江苏盈科汽车空调有限公司 | High-wear-resisting nickel-phosphorus alloy chemical plating solution for swash plate of air condition compressor |
| CN104213106A (en) * | 2014-09-26 | 2014-12-17 | 国家电网公司 | Ni/Zn/P-particle composite chemical plating layer and preparation method thereof |
-
2016
- 2016-07-21 CN CN201610577955.2A patent/CN106435539A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724874A (en) * | 2008-10-17 | 2010-06-09 | 上海宝钢设备检修有限公司 | Surface repairing method for thin-strip continuous casting crystallizing roller or casting blank continuous casting crystallizer |
| CN203051498U (en) * | 2012-12-28 | 2013-07-10 | 世林（漯河）冶金设备有限公司 | Nanometer composite electroplating self-lubricating shaft sleeve |
| CN103451636A (en) * | 2013-06-24 | 2013-12-18 | 江苏盈科汽车空调有限公司 | High-wear-resisting nickel-phosphorus alloy chemical plating solution for swash plate of air condition compressor |
| CN104213106A (en) * | 2014-09-26 | 2014-12-17 | 国家电网公司 | Ni/Zn/P-particle composite chemical plating layer and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张允诚，胡如南，向荣: "光亮剂", 《电镀手册》 * |
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Application publication date: 20170222 |
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