CN100535184C - Composite corpuscle nickel base alloy solution for manufacturing or repairing cylinder cover - Google Patents
Composite corpuscle nickel base alloy solution for manufacturing or repairing cylinder cover Download PDFInfo
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- CN100535184C CN100535184C CNB2008100201556A CN200810020155A CN100535184C CN 100535184 C CN100535184 C CN 100535184C CN B2008100201556 A CNB2008100201556 A CN B2008100201556A CN 200810020155 A CN200810020155 A CN 200810020155A CN 100535184 C CN100535184 C CN 100535184C
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Abstract
The invention relates to composite particle nickel alloy solution which manufactures and repairs cylinder jackets and is mainly used to repair the inner wall of the cylinder jackets of high power diesel engines after abrasion due to use. The solution is mainly composed of raw materials of following percentage by weight: carborundum 3%+-0.15% whose partical diameter is 0.0007 to 0.004mm, sulfourea 0.004%+-0.0002%, nickel sulfate 2%+-0.1%, sodium hyposulfite 1.5%+-0.075%, sodium acetate 1.5%+-0.075% and aminoacetic acid 0.8%+-0.04%, and other is deionized water. The inner wall of the cylinder jackets after abrasion due to use can be repaired to the original size through utilizing solution of the invention to be used continuously, which realizes reproduction of faulty parts and increases the performance.
Description
Technical field
The present invention relates to the composite corpuscle nickel base alloy solution of a kind of manufacturing or repairing cylinder cover.Be mainly used in reparation to existing railway, peculiar to vessel and large power diesel engine cylinder jacket inwall after using wearing and tearing.In the time of can also being used to make all kinds of large power diesel engine cylinder jacket inwall is applied, to promote its performance.
Background technology
Existing railway, peculiar to vessel and large power diesel engine cylinder jacket, inner wall abrasion after using, power descends, and oil consumption increases, and therefore scraps processing.
" composite corpuscle nickel base alloy " is that development produces on the basis of the Ni-based alloy coat of electroless plating of widespread use.Promptly in the Ni-based alloy coat of former electroless plating, added high hard superfine silicon carbide particulate, make the hardness of coating higher, oiliness is better under the working order, hard particles carry load and plow played barrier effect in the coating, stop coating fatigue, lattice dislocation and adhesive wear, thereby the duration of service of having improved workpiece greatly.
The difficult point established technology technical essential of the Ni-based alloy coat of electroless plating of widespread use is the stability of solution.Any impurity in the solution, the existence that especially has the catalytic activity particle all can be quickened the decomposition of solution, and " composite corpuscle nickel base alloy " technology is just in time opposite, add a large amount of fine particles in solution, particle surface is long-pending generally to reach 100000
Cm2/ liter, loading capacity is that (loading capacity is meant that the solution correspondence of unit volume is a loading capacity by the surface-area of coated workpiece to more than 800 times of former technology, and unit is 100L/m
2), so normally long term operation is scrapped in the very fast decomposition of solution,, and can't enter industrial applications so this coating generally can only be at the prepared in laboratory sample.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of and make or the composite corpuscle nickel base alloy solution of repairing cylinder cover, make this solution can control in industrialization manufacturing, repairing cylinder cover process that composite corpuscle nickel base alloy solution is stable in the reaction times of setting not to be decomposed.
The object of the present invention is achieved like this: the composite corpuscle nickel base alloy solution of a kind of manufacturing or repairing cylinder cover, mainly form by following raw materials by weight percent:
The silicon carbide 3% ± 0.15% of particle diameter 0.0007～0.004mm
Thiocarbamide 0.004% ± 0.002%
Single nickel salt 2% ± 0.1%
Sodium hypophosphite 1.5% ± 0.075%
Sodium-acetate 1.5% ± 0.075%
Glycine 0.8% ± 0.04%
All the other are deionized water.
Using method: preparation is had the composite corpuscle nickel base alloy solution of micron order hard wear-resistant material silicon carbide, and being coated with in the apparatus for coating of special use, coated is at interior surface of cylinder liner uniformly.
The apparatus for coating that is coated with of described special use comprises: cylinder sleeve to be processed, following water cap, last water cap, stirring rod, insulation can, condenser, filtration pump, liquid pool, container for storing liquid, well heater, add a device and stirring rod, cylinder sleeve bottom to be processed is tightly connected with following water cap, top and last water cap are tightly connected, stirring rod is arranged on cylinder sleeve to be processed, in following water cap and the last water cap, insulation can is arranged on cylinder sleeve to be processed, outside following water cap and the last water cap, following water cap lower openings by pipeline with add the outlet of device and be connected, last water cap top is provided with overflow port and is connected with condenser inlet by pipeline, condensator outlet links to each other with the filtration pump import, the filtration pump outlet links to each other with the liquid pool solution inlet port, the liquid pool taphole links to each other with the container for storing liquid solution inlet port, the container for storing liquid taphole is connected with the well heater solution inlet port, the well heater taphole with add a device solution inlet port and be connected;
The technological process of described method is: the composite corpuscle nickel base alloy solution that goes out to add a device is imported in the cylinder sleeve to be processed by water cap under the following water cap lower openings warp and carries out chemical reaction, stirring rod average rate under power drives stirs the limit and upwards promotes, with the silicon-carbide particles in the composite corpuscle nickel base alloy solution equably coated at interior surface of cylinder liner to be processed, the interior surface of cylinder liner reparation that is worn is returned to life size continues to use, or the interior surface of cylinder liner of coming of new strengthened to improve its wear resistance, used composite corpuscle nickel base alloy solution imports condenser by the overflow port on last water cap top, rapidly used composite corpuscle nickel base alloy solution is reduced to 50 ℃ by 80～82 ℃ of coolings of working temperature, solution loses activity, chemical reaction stops, all filter is most with the silicon-carbide particles in the chilled composite corpuscle nickel base alloy solution for filtration pump, and filtrate pumped into liquid pool, in liquid pool, be mixed with nickel base alloy solution through the chemical analysis adjustment and after replenishing each relevant composition, import the container for storing liquid storage again and keep volume, container for storing liquid lower part outlet access flow meter, send into well heater after the metering, well heater is by the temperature controller controlled temperature, the heating of solution heater via, metering adds a device by arriving to import after 82～83 ℃ of the temperature outs, adds silicon-carbide particles and be mixed with composite corpuscle nickel base alloy solution and enter the following recycle system in adding a device;
Each control of process parameters in the described cylinder sleeve to be processed:
1), stirring rod: 110 rev/mins ± 10 rev/mins of stirring velocitys,
2), solution temperature control: 80～82 ℃ of temperature
3), pH value of solution value control: pH=4.6～4.8
4), solution loading capacity and solution flow control: 6 liters/m
2Minute, wherein, m
2The surface-area that refers to workpiece to be machined.
The key of above-mentioned equipment design is: continuous long term operation meeting causes decomposition failure and reaction terminating after adding a large amount of carborundum particles in the solution, solution is just heated in short-term to finish to the cylinder sleeve inside that working temperature is flowed through to be processed again to react to condenser in well heater and is cooled off fast in this design, total time≤10 minute, solution has promptly broken away from working temperature, reaction stops immediately, all filter is most may to poison the carborundum particle of growing up by filtration pump again, enters systemic circulation again behind the interpolation composition and uses.Facts have proved the work in continuous ten days of this equipment twenty four hours every day, accumulative total output coat-thickness reaches 36mm, solution and whole work system normal (a general cylinder sleeve coating is below 0.1mm).
The Ni-based alloy of electroless plating is the chemical reaction process of the nickel ion reduce deposition in the solution on the surface with catalytic activity with reductive agent (hypophosphite).Because a variety of causes in the production process: local superheating, pH value are too high, the cleanliness factor of the purity of various industrial raw material and Working environment all inevitably can make and occur some active particles---catalytic core in the solution, make the self-catalyzed reaction that fierceness takes place solution produce a large amount of Ni-P black powders, cause solution to take place in a short time to decompose and scrap.
Function of stabilizer just is to suppress the spontaneous decomposition of solution, and reaction process is carried out under control in order, and stablizer is that a kind of poisonous agent is an anticatalyzer, can only add the spontaneous decomposition that trace just can suppress plating bath.
Key is a selection of stabilizers in the composite corpuscle nickel base alloy solution prescription, and the adding of thiocarbamide stablizer can keep higher speed of response, and promptly the adsorptive capacity of carborundum particle in coating can make solution stablize in the reaction times of setting again and not decompose.
At present, in the Ni-based alloy industry field of electroless plating, stablizer is divided into four classes:
1, the inorganic or organism of sulphur, as: thiocarbamide and derivative thereof, thiocyanate-etc.;
2, oxygenatedchemicals is as Potassium Iodate, molybdic oxide etc.;
3, heavy metallic salt, as: plumbic acetate, Cadmium Sulphate etc.;
4, water soluble organic substance, as: toxilic acid, Succinic Acid etc.
Function of stabilizer mechanism: stablizer is adsorbed on the solia particle surface, the dehydrogenation reaction that suppresses the Hypophosporous Acid, 50 root, but the oxygenizement that does not stop hypophosphite, also we can say, stablizer has been sheltered catalytic active center, stop the one-tenth nuclear reaction, but do not influenced the reaction process of the chemistry that the normal nickel-base alloy of workpiece surface is reduced.
Thiocarbamide is above-mentioned first kind stablizer, and it is adsorbed on the solia particle surface, and it suppresses the reduction of evolving hydrogen reaction and inhibition Hypophosporous Acid, 50 root in cathode reduction process, thereby has stoped solia particle to participate in the possibility that reaction becomes nucleus.Thiocarbamide is oxidized to dipolymer in anodic process, and this dipolymer is reduced into thiocarbamide by the Hypophosporous Acid, 50 root again.And the oxidized back of thiocarbamide ejected electron is by Ni in above-mentioned anodic process
2+Acceptance is reduced into Ni.Be the electron exchange tendency of promote the oxidation reduction reaction, change the cathode and anode overpotential, play the electrochemical catalysis effect, so the add-on of thiocarbamide can also increase the sedimentation velocity of nickel-base alloy in certain scope.But the settled layer outward appearance that with the thiocarbamide is stablizer is gloomy, the porosity height.
2nd, 3,4 class function of stabilizer mechanism are basic identical in thiocarbamide.This three classes stablizer has certain leveling, densification, light effect to the nickel-base alloy that deposits.But the adding of this three classes stablizer will make the sedimentation velocity of nickel-base alloy be linear along with the increase of add-on to descend, and finally scrap because of solution is aging abandon heavy metal ion in the liquid, organism can cause environmental pollution and improve processing cost.So stabilizer formula all adopts compound prescription basically in the suitability for industrialized production of the Ni-based alloy of electroless plating that extensively adopts, to take into account the over-all properties of settled layer.Be that existing certain reaction speed makes again that settled layer is finer and close and bright to have certain decoration function.
Manufacturing requirement according to cylinder sleeve, casing wall must be set up oil film, work under nothing adhesion contact condition with assurance and piston ring, this just requires casing wall that certain porosity is arranged, make its oil-containing set up oil film, moreover in " composite corpuscle nickel base alloy " solution because of the adding of a large amount of solia particles, the stable extreme difference of chemical reaction, can only strengthen the consumption of stablizer, but the adding of excessive stablizer greatly reduces reactive deposition speed even reaction is stopped.Silicon-carbide particles are adsorbed on sedimentary nickel-base alloy surface and " are surrounded plantation " and inlay in the reaction process of coating in the solution, must require chemical reaction will have stable high relatively speed of response just can be accomplished.According to aforesaid Analysis on Mechanism and a large amount of experiments, it is inapplicable obviously adopting conventional compound stabilizer.The present invention has quantitatively selected single thiocarbamide as stablizer, under the synergy of isolated plant of the present invention, both guaranteed the permanent stability of solution reaction, and made speed of response keep not only steady but also high sedimentation velocity (0.016～0.018mm/n coating deposit thickness) relatively again.And because of the adding of silicon-carbide particles and thiocarbamide as stablizer, " composite corpuscle nickel base alloy " coating has exactly possessed porousness, is just conforming to the basic demand that casing wall is set up oil film.
Utilize solution of the present invention to continue to use, realize the manufacturing again of scrapped parts and promote performance through using the reparation of wearing and tearing exhaust hood cover inwall to recovering life size.
Description of drawings
Fig. 1 is technological process of production figure of the present invention.
Among the figure: cylinder sleeve 1 to be processed, down water cap 2, go up water cap 3, insulation can 4, condenser 5, filtration pump 6, liquid pool 7, container for storing liquid 8, under meter 9, well heater 10, add a device 11, stirring rod 12.
Embodiment
Referring to Fig. 1, the reaction unit of special use of the present invention mainly by cylinder sleeve to be processed 1, down water cap 2, go up water cap 3, stirring rod 12, insulation can 4, condenser 5, filtration pump 6, liquid pool 7, container for storing liquid 8, well heater 10, add a device 11 and stirring rod 12 is formed.Described cylinder sleeve to be processed 1 working position is the interior surface of cylinder liner cleaning, finishes composite particles silicon carbide nickel-base alloy reaction process at this.Cylinder sleeve 1 bottom to be processed is tightly connected with following water cap 2, and cylinder sleeve 1 top and last water cap 3 to be processed are tightly connected, and stirring rod 12 is arranged in cylinder sleeve to be processed 1, following water cap 2 and the last water cap 3.Insulation can 4 is arranged on cylinder sleeve to be processed 1, down outside water cap 2 and the last water cap 3, to keep the external reaction temperature of cylinder sleeve 1 to be processed.Following water cap 2 lower openings by pipeline with add a device 11 outlet and be connected; Last water cap 3 tops are provided with overflow port and are connected with condenser 5 imports by pipeline, condenser 5 outlets link to each other with filtration pump 6 imports, filtration pump 6 outlets link to each other with liquid pool 7 solution inlet port, liquid pool 7 tapholes link to each other with container for storing liquid 8 solution inlet port, container for storing liquid 8 tapholes are connected with well heater 10 solution inlet port, well heater 10 tapholes with add a device 11 solution inlet port and be connected.
Each control of process parameters in the cylinder sleeve to be processed:
1, quantitative silicon-carbide particles have been added in the solution, must make it be suspension and orientation movement to guarantee its absorption and embedding in the alloy layer when the nickel-base alloy reduction reaction, stirring rod 12 has adopted the limit average rate to stir the limit and has upwards promoted, and stirring velocity is 110 rev/mins.
2, temperature control: 80～82 ℃ of solution temperatures
3, pH value of solution value control: control pH4.6～4.8
4, loading capacity and solution flow control: 6 liters/m
2Minute (m
2The surface-area that refers to workpiece to be machined).
Principle of work:
The composite corpuscle nickel base alloy solution that goes out to add a device 11 is imported in the cylinder sleeve 1 to be processed by water cap 2 under the following water cap 2 lower openings warp and carries out chemical reaction, stirring rod 12 average rate under power drives stirs the limit and upwards promotes, with the silicon-carbide particles in the composite corpuscle nickel base alloy solution equably coated at cylinder sleeve to be processed 1 internal surface, the interior surface of cylinder liner reparation that is worn is returned to life size continue to use, or the interior surface of cylinder liner of coming of new is strengthened to improve its wear resistance.Used composite corpuscle nickel base alloy solution imports condenser 5 by the overflow port on last water cap 3 tops, rapidly used composite corpuscle nickel base alloy solution is reduced to 50 ℃ by 80～82 ℃ of coolings of working temperature, solution loses activity, chemical reaction stops, all filter is most with the silicon-carbide particles in the chilled composite corpuscle nickel base alloy solution for filtration pump 8, and filtrate pumped into liquid pool 7, in liquid pool 7, be mixed with nickel base alloy solution, import container for storing liquid 8 storages again and keep volume through the chemical analysis adjustment and after replenishing each relevant composition.Container for storing liquid 8 lower part outlet access flow meters 9 are sent into well heater 10 after the metering.Well heater 10 is by the temperature controller controlled temperature, 10 heating of solution heater via, and metering adds a device 11 by arriving to import after 82～83 ℃ of the temperature outs, and the adding silicon-carbide particles are mixed with composite corpuscle nickel base alloy solution and enter the following recycle system during adding a device 11.
Claims (1)
1, the composite corpuscle nickel base alloy solution of a kind of manufacturing or repairing cylinder cover, it is characterized in that: described solution mainly is made up of following raw materials by weight percent:
The silicon carbide 3% ± 0.15% of particle diameter 0.0007～0.004mm
Thiocarbamide 0.004% ± 0.002%
Single nickel salt 2% ± 0.1%
Sodium hypophosphite 1.5% ± 0.075%
Sodium-acetate 1.5% ± 0.075%
Glycine 0.8% ± 0.04%
All the other are deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100201556A CN100535184C (en) | 2008-03-27 | 2008-03-27 | Composite corpuscle nickel base alloy solution for manufacturing or repairing cylinder cover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100201556A CN100535184C (en) | 2008-03-27 | 2008-03-27 | Composite corpuscle nickel base alloy solution for manufacturing or repairing cylinder cover |
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| Publication Number | Publication Date |
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| CN101250694A CN101250694A (en) | 2008-08-27 |
| CN100535184C true CN100535184C (en) | 2009-09-02 |
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| CNB2008100201556A Expired - Fee Related CN100535184C (en) | 2008-03-27 | 2008-03-27 | Composite corpuscle nickel base alloy solution for manufacturing or repairing cylinder cover |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094192B (en) * | 2011-03-15 | 2012-10-31 | 北京交通大学 | Method for preparing plating solution for chemical nickel plating on surface of aluminum alloy and method for regenerating waste plating solution |
| CN103527340B (en) * | 2013-10-21 | 2015-09-09 | 潍柴动力(潍坊)再制造有限公司 | Engine cylinder and reproducing method thereof |
| CN106367741A (en) * | 2016-11-15 | 2017-02-01 | 江门荣胜机电有限公司 | Oilless piston machine pressure-casting aluminum air cylinder and chemical nickel plating process thereof |
| CN109610229B (en) * | 2018-12-21 | 2021-04-06 | 东北林业大学 | Preparation method of self-fluffy electromagnetic shielding paper |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072466A (en) * | 1991-11-18 | 1993-05-26 | 荣成市内燃机厂 | Cylinder inner wall electronickelling-carborundum craft |
| CN101021013A (en) * | 2007-03-21 | 2007-08-22 | 浙江工业大学 | Process of preparing nanometer antiwear composite coating on surface of metal base |
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2008
- 2008-03-27 CN CNB2008100201556A patent/CN100535184C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1072466A (en) * | 1991-11-18 | 1993-05-26 | 荣成市内燃机厂 | Cylinder inner wall electronickelling-carborundum craft |
| CN101021013A (en) * | 2007-03-21 | 2007-08-22 | 浙江工业大学 | Process of preparing nanometer antiwear composite coating on surface of metal base |
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| CN101250694A (en) | 2008-08-27 |
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