CN102691086A - Cylinder hole ceramic-forming treatment method for aluminum alloy engine cylinder body - Google Patents
Cylinder hole ceramic-forming treatment method for aluminum alloy engine cylinder body Download PDFInfo
- Publication number
- CN102691086A CN102691086A CN2012102009656A CN201210200965A CN102691086A CN 102691086 A CN102691086 A CN 102691086A CN 2012102009656 A CN2012102009656 A CN 2012102009656A CN 201210200965 A CN201210200965 A CN 201210200965A CN 102691086 A CN102691086 A CN 102691086A
- Authority
- CN
- China
- Prior art keywords
- amplitude
- working fluid
- cylinder body
- cylinder hole
- negative
- 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
Images
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention provides a cylinder hole ceramic-forming treatment method for an aluminum alloy engine cylinder body, relating to a treatment method for forming ceramic in a cylinder hole of an engine cylinder body. In order to solve the existing technical problems such as pollution caused by hard chromium electroplating in the cylinder hole of the cylinder body and short service life of the cylinder body or thin compact layer of an oxidation film obtained by an oxidation treatment method. The method comprises the following steps: fixing a graphite rod in the cylinder hole of the cylinder body, then entirely immersing in an alkaline working liquid, using a direct current pulse power supply between the graphite rod and the cylinder body to apply direct current pulse, connecting the graphite rod to the negative pole, connecting the cylinder body to the positive pole, causing the alkaline working liquid in the cylinder hole to form a circulation flow, and keeping the temperature of the alkaline working liquid not higher than 50 DEG C. By using the method, an Al2O3 ceramic film can be generated on the inner wall of the cylinder hole; the hardness of the ceramic film can reach HV800 or above, and the thickness is 30-150 mu m; and the ceramic film can obviously improve the performance and service life of the engine (the output power can be increased by about 10%, oil can be saved by more than 15%, and the service life can be prolonged more than twice).
Description
Technical field
The present invention relates to a kind of to engine cylinder-body cylinder hole ceramic treatment method.
Background technology
Engine cylinder cylinder hole surface cooperates with piston-ring, and piston-ring slides up and down at a high speed in the cylinder hole in the work, and this just requires the cylinder hole surface necessary wear-resisting, and can satisfy the requirement in engine operation performance and work-ing life.
Graden machine (like mower and chain saw etc.) all adopts the integrated duraluminum cylinder of no cylinder sleeve with mover, because of duraluminum is softer not wear-resisting, need carry out surface treatment to the cylinder hole, satisfies the requirement of the wear resistance of mover countercylinder.At present, it is main that the cylinder hole surface is handled with electroplating hard chromium process, and this technology environmental pollution is serious, and cylinder is shorter work-ing life.
Outboard motor peculiar to vessel (or claim hanging outdoor unit) generally adopts cylinder sleeve type split cylinder with the passenger car mover, and this cylinder cylinder sleeve and cylinder body when assembling are wringing fit, and assembly difficulty is big, technology cost height.Therefore,, realize no cylinder sleeve type block head cylinder, reach simplification technology, improve the purpose in motor performance and life-span through this wear-resistant coating expectation if directly generate one deck wear-resistant coating at the cylinder hole surface.
Existing method realizes oxide treatment is carried out in cylinder body cylinder hole; But have following problem: (1) this process using thrust-augmenting nozzle is discharged the working fluid in the cylinder hole; Receive the thrust-augmenting nozzle flow restriction,, will make that solution temperature rises very fast in the cylinder hole if the heat that produces during oxidation can not in time be discharged; Make the temperature distortion of cylinder hole, produce circularity or deviation from cylindrical form.(2) as on the cylinder block of usefulness such as mower, chain saw thrust-augmenting nozzle being installed; Even can install; Also can only install, cause the solution delivery flow very little, will cause that solution temperature sharply rises in the cylinder hole in the position of sparking plug; Make the temperature distortion of cylinder hole, equally also will produce circularity or deviation from cylindrical form.(3) owing to the unidirectional direct current pulse power source of this process using, the sull dense layer thickness is difficult to surpass 0.05mm.(4) this process using stainless steel tube, because there is loss in negative electrode in the oxidising process, so stainless steel tube must frequent change.
Summary of the invention
The objective of the invention is provides a kind of aluminium alloy engine cylinder body cylinder hole ceramic treatment method in order to solve pollution and the cylinder body relatively thinner technical problem of sull dense layer thickness that work-ing life, method short or oxide treatment obtained to cylinder body cylinder hole durionise.
Aluminium alloy engine cylinder body cylinder hole ceramic treatment method is following:
The alkalescence working fluid places cell body, graphite rod is fixed in the cylinder hole of cylinder body, whole then the immersion in the alkaline working fluid; Graphite rod connects the direct current pulse power source negative pole; Cylinder body connects the direct current pulse power source positive pole, and the working fluid recycle pump extracts alkaline working fluid through working fluid loop head pipe from cell body, alkaline working fluid is injected in the cylinder hole of cylinder body through working fluid loop exit pipe simultaneously; Alkaline working fluid formation in the cylinder hole is circulated; And keep alkaline working fluid liquid temperature not to be higher than 50 ℃, and between graphite rod and cylinder body, apply DC pulse and handle one-period S, accomplish aluminium alloy engine cylinder body cylinder hole potteryization;
Said alkaline working fluid is made up of Pottasium Hydroxide and water glass, and wherein the concentration of Pottasium Hydroxide is 1g/L～2g/L, and the concentration of water glass is 2g/L～20g/L;
DC pulse carries out in such a way in the said one-period S:
At t1 constantly, exporting a width is that Tz1, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf1, amplitude are the negative-going pulse of Vf1;
At t2 constantly, exporting a width is that Tz2, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf2, amplitude are the negative-going pulse of Vf1;
By same rule,
At ti constantly, exporting a width is that Tzi, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tfi, amplitude are the negative-going pulse of Vf1;
The direct impulse amplitude of any time equates to be Vz1, and direct impulse amplitude Vz1 is 500V～700V, and the negative-going pulse amplitude of any time equates to be Vf1, and negative-going pulse amplitude Vf1 is-150V～-30V, pulse-repetition is 20Hz～500Hz,
Tzi=Tfi, Vzi＞Vfi, ti＞t
I-1+ Tz1+Tf1, t
0=0, Tz1=Tf1=0.01s～0.08s, i=1,2,3,4 ... N, beginning constantly to carve to tn from t1 is one-period S, S is 40min～90min.
Above-mentioned alkaline working fluid can also be made up of with Pottasium Hydroxide and water glass in sodium wolframate and the sodium aluminate one or both; Wherein the concentration of sodium wolframate is 1g/L～8g/L; The concentration of sodium aluminate is 1g/L～10g/L; The concentration of Pottasium Hydroxide is 1g/L～2g/L, and the concentration of water glass is 2g/L～20g/.
The present invention is through applying pulsed voltage between graphite rod (also can adopt stainless steel or titanium alloy rod) and aluminum alloy cylinder body; Utilize high-voltage pulse power source to produce plasma discharge at the cylinder hole surface, making it is master's AL with oxygen generation electrochemical reaction generation under electric field and TRANSIENT HIGH TEMPERATURE in the alkaline working fluid with α mutually
2O
3Ceramic film is grown attached to cylinder hole inner wall surface securely.High, corrosion-resistant, wear-resistant, high temperature resistant with substrate combinating strength, anti-characteristics of ablating that this ceramic film has.
Present method can generate one deck AL on the inwall of cylinder hole
2O
3Ceramic membrane, this ceramic membrane hardness can reach more than the HV800, and thickness is 30 μ m～150 μ m, can significantly improve performance and the work-ing life (can improve about 10% output rating, fuel-economizing is more than 15%, and can increase reach work-ing life more than 2 times) of mover.
Description of drawings
Fig. 1 is the inventive method synoptic diagram; Fig. 2 is the oscillogram that direct current pulse power source of the present invention applies DC pulse.
Embodiment
Technical scheme of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: combine Fig. 1 and this embodiment of Fig. 2 aluminium alloy engine cylinder body cylinder hole ceramic treatment method following:
The alkalescence working fluid places cell body 6, graphite rod 2 is fixed in the cylinder hole of cylinder body 1, whole then the immersion in the alkaline working fluid; Graphite rod 2 connects the direct current pulse power source negative pole; Cylinder body 1 connects the direct current pulse power source positive pole, and working fluid recycle pump 5 extracts alkaline working fluid through working fluid loop head pipe 4 from cell body 6, alkaline working fluid is injected in the cylinder hole of cylinder body 1 through working fluid loop exit pipe 3 simultaneously; Alkaline working fluid formation in the cylinder hole is circulated; And keep alkaline working fluid liquid temperature not to be higher than 50 ℃, and between graphite rod 2 and cylinder body 1, apply DC pulse and handle one-period S, accomplish aluminium alloy engine cylinder body cylinder hole potteryization;
Said alkaline working fluid is made up of Pottasium Hydroxide and water glass, and wherein the concentration of Pottasium Hydroxide is 1g/L～2g/L, and the concentration of water glass is 2g/L～20g/L;
DC pulse carries out in such a way in the said one-period S:
At t1 constantly, exporting a width is that Tz1, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf1, amplitude are the negative-going pulse of Vf1;
At t2 constantly, exporting a width is that Tz2, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf2, amplitude are the negative-going pulse of Vf1;
By same rule,
At ti constantly, exporting a width is that Tzi, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tfi, amplitude are the negative-going pulse of Vf1;
The direct impulse amplitude of any time equates to be Vz1, and direct impulse amplitude Vz1 is 500V～700V, and the negative-going pulse amplitude of any time equates to be Vf1, and negative-going pulse amplitude Vf1 is-150V～-30V, pulse-repetition is 20Hz～500Hz,
Tzi=Tfi, Vzi＞Vfi, ti＞t
I-1+ Tz1+Tf1, t
0=0, Tz1=Tf1=0.01s～0.08s, i=1,2,3,4 ... N begins constantly to be one-period S constantly to tn that S is 40min～90min from t1.
Embodiment two: what this embodiment and embodiment one were different is that alkaline working fluid is made up of Pottasium Hydroxide and water glass described in the step 1, and wherein the concentration of Pottasium Hydroxide is 2g/L, and the concentration of water glass is 15g/L.Other is identical with embodiment one.
Embodiment three: what this embodiment and embodiment one were different is that the amplitude of direct impulse described in step 2 Vz1 is 520V, and negative-going pulse amplitude Vf1 is-80V.Other is identical with embodiment one.
Embodiment four: combine Fig. 1 and this embodiment of Fig. 2 aluminium alloy engine cylinder body cylinder hole ceramic treatment method following:
The alkalescence working fluid places cell body 6, graphite rod 2 is fixed in the cylinder hole of cylinder body 1, whole then the immersion in the alkaline working fluid; Graphite rod 2 connects the direct current pulse power source negative pole; Cylinder body 1 connects the direct current pulse power source positive pole, and working fluid recycle pump 5 extracts alkaline working fluid through working fluid loop head pipe 4 from cell body 6, alkaline working fluid is injected in the cylinder hole of cylinder body 1 through working fluid loop exit pipe 3 simultaneously; Alkaline working fluid formation in the cylinder hole is circulated; And keep alkaline working fluid liquid temperature not to be higher than 50 ℃, and between graphite rod 2 and cylinder body 1, apply DC pulse and handle one-period S, accomplish aluminium alloy engine cylinder body cylinder hole potteryization;
Said alkaline working fluid is made up of with Pottasium Hydroxide and water glass sodium wolframate or sodium aluminate; Wherein the concentration of sodium wolframate is 1g/L～8g/L; The concentration of sodium aluminate is 1g/L～10g/L, and the concentration of Pottasium Hydroxide is 1g/L～2g/L, and the concentration of water glass is 2g/L～20g/L;
DC pulse carries out in such a way in the said one-period S:
At t1 constantly, exporting a width is that Tz1, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf1, amplitude are the negative-going pulse of Vf1;
At t2 constantly, exporting a width is that Tz2, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf2, amplitude are the negative-going pulse of Vf1;
By same rule,
At ti constantly, exporting a width is that Tzi, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tfi, amplitude are the negative-going pulse of Vf1;
The direct impulse amplitude of any time equates to be Vz1, and direct impulse amplitude Vz1 is 500V～700V, and the negative-going pulse amplitude of any time equates to be Vf1, and negative-going pulse amplitude Vf1 is-150V～-30V, pulse-repetition is 20Hz～500Hz,
Tzi=Tfi, Vzi＞Vfi, ti＞t
I-1+ Tz1+Tf1, t
0=0, Tz1=Tf1=0.01s～0.08s, i=1,2,3,4 ... N begins constantly to be one-period S constantly to tn that S is 40min～90min from t1.
Embodiment five: what this embodiment and embodiment four were different is that alkaline working fluid is made up of Pottasium Hydroxide and water glass described in the step 1, and wherein the concentration of Pottasium Hydroxide is 2g/L, and the concentration of water glass is 15g/L.Other is identical with embodiment four.
Embodiment six: what this embodiment and embodiment four were different is that the amplitude of direct impulse described in step 2 Vz1 is 520V, and negative-going pulse amplitude Vf1 is-80V.Other is identical with embodiment four.
Embodiment seven: combine Fig. 1 and this embodiment of Fig. 2 aluminium alloy engine cylinder body cylinder hole ceramic treatment method following:
The alkalescence working fluid places cell body 6, graphite rod 2 is fixed in the cylinder hole of cylinder body 1, whole then the immersion in the alkaline working fluid; Graphite rod 2 connects the direct current pulse power source negative pole; Cylinder body 1 connects the direct current pulse power source positive pole, and working fluid recycle pump 5 extracts alkaline working fluid through working fluid loop head pipe 4 from cell body 6, alkaline working fluid is injected in the cylinder hole of cylinder body 1 through working fluid loop exit pipe 3 simultaneously; Alkaline working fluid formation in the cylinder hole is circulated; And keep alkaline working fluid liquid temperature not to be higher than 50 ℃, and between graphite rod 2 and cylinder body 1, apply DC pulse and handle one-period S, accomplish aluminium alloy engine cylinder body cylinder hole potteryization;
Said alkaline working fluid is made up of sodium wolframate, sodium aluminate, Pottasium Hydroxide and water glass; Wherein the concentration of sodium wolframate is 1g/L～8g/L; The concentration of sodium aluminate is 1g/L～10g/L, and the concentration of Pottasium Hydroxide is 1g/L～2g/L, and the concentration of water glass is 2g/L～20g/L;
DC pulse carries out in such a way in the said one-period S:
At t1 constantly, exporting a width is that Tz1, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf1, amplitude are the negative-going pulse of Vf1;
At t2 constantly, exporting a width is that Tz2, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf2, amplitude are the negative-going pulse of Vf1;
By same rule,
At ti constantly, exporting a width is that Tzi, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tfi, amplitude are the negative-going pulse of Vf1;
The direct impulse amplitude of any time equates to be Vz1, and direct impulse amplitude Vz1 is 500V～700V, and the negative-going pulse amplitude of any time equates to be Vf1, and negative-going pulse amplitude Vf1 is-150V～-30V, pulse-repetition is 20Hz～500Hz,
Tzi=Tfi, Vzi＞Vfi, ti＞t
I-1+ Tz1+Tf1, t
0=0, Tz1=Tf1=0.01s～0.08s, i=1,2,3,4 ... n begins constantly to be one-period S constantly to tn that S is 40min～90min from t1.
Embodiment eight: what this embodiment and embodiment seven were different is that alkaline working fluid is made up of Pottasium Hydroxide and water glass described in the step 1, and wherein the concentration of Pottasium Hydroxide is 2g/L, and the concentration of water glass is 15g/L.Other is identical with embodiment seven.
Embodiment nine: what this embodiment and embodiment seven were different is that the amplitude of direct impulse described in step 2 Vz1 is 520V, and negative-going pulse amplitude Vf1 is-80V.Other is identical with embodiment seven.
Adopt following experimental verification effect of the present invention:
Experiment one:
Following in conjunction with Fig. 1 and this experiment of Fig. 2 aluminium alloy engine cylinder body cylinder hole ceramic treatment method:
The alkalescence working fluid places cell body 6, graphite rod 2 is fixed in the cylinder hole of cylinder body 1, whole then the immersion in the alkaline working fluid; Graphite rod 2 connects the direct current pulse power source negative pole; Cylinder body 1 connects the direct current pulse power source positive pole, and working fluid recycle pump 5 extracts alkaline working fluid through working fluid loop head pipe 4 from cell body 6, alkaline working fluid is injected in the cylinder hole of cylinder body 1 through working fluid loop exit pipe 3 simultaneously; Alkaline working fluid formation in the cylinder hole is circulated; And to keep alkaline working fluid liquid temperature be 35 ± 5 ℃, between graphite rod 2 and cylinder body 1, applies DC pulse and handle one-period S, accomplishes aluminium alloy engine cylinder body cylinder hole potteryization;
Said alkaline working fluid is made up of Pottasium Hydroxide and water glass, and wherein the concentration of Pottasium Hydroxide is 2g/L, and the concentration of water glass is 10g/L;
DC pulse carries out in such a way in the said one-period S:
At t1 constantly, exporting a width is that Tz1, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf1, amplitude are the negative-going pulse of Vf1;
At t2 constantly, exporting a width is that Tz2, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf2, amplitude are the negative-going pulse of Vf1;
By same rule,
At ti constantly, exporting a width is that Tzi, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tfi, amplitude are the negative-going pulse of Vf1;
The direct impulse amplitude of any time equates to be Vz1, and direct impulse amplitude Vz1 is 520V, and the negative-going pulse amplitude of any time equates to be Vf1, and negative-going pulse amplitude Vf1 is-80V, and pulse-repetition is 200Hz,
Tzi=Tfi, Vzi＞Vfi, ti＞t
I-1+ Tz1+Tf1, t
0=0, Tz1=Tf1=0.01s, i=1,2,3,4 ... N begins constantly to be one-period S constantly to tn that S is 60min from t1.
I=1 wherein, 2,3,4 ... N begins constantly to be one-period T constantly to ti that T is 60min from t1.
Experiment two:
The alkalescence working fluid places cell body 6, graphite rod 2 is fixed in the cylinder hole of cylinder body 1, whole then the immersion in the alkaline working fluid; Graphite rod 2 connects the direct current pulse power source negative pole; Cylinder body 1 connects the direct current pulse power source positive pole, and working fluid recycle pump 5 extracts alkaline working fluid through working fluid loop head pipe 4 from cell body 6, alkaline working fluid is injected in the cylinder hole of cylinder body 1 through working fluid loop exit pipe 3 simultaneously; Alkaline working fluid formation in the cylinder hole is circulated; And to keep alkaline working fluid liquid temperature be 35 ± 5 ℃, between graphite rod 2 and cylinder body 1, applies DC pulse and handle one-period S, accomplishes aluminium alloy engine cylinder body cylinder hole potteryization;
Said alkaline working fluid is made up of sodium wolframate, Pottasium Hydroxide and water glass, and wherein the concentration of sodium wolframate is 5g/L, and the concentration of Pottasium Hydroxide is 1g/L, and the concentration of water glass is 15g/L;
DC pulse carries out in such a way in the said one-period S:
At t1 constantly, exporting a width is that Tz1, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf1, amplitude are the negative-going pulse of Vf1;
At t2 constantly, exporting a width is that Tz2, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf2, amplitude are the negative-going pulse of Vf1;
By same rule,
At ti constantly, exporting a width is that Tzi, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tfi, amplitude are the negative-going pulse of Vf1;
The direct impulse amplitude of any time equates to be Vz1, and direct impulse amplitude Vz1 is 520V, and the negative-going pulse amplitude of any time equates to be Vf1, and negative-going pulse amplitude Vf1 is-80V that pulse-repetition is 200Hz, Tzi=Tfi, Vzi＞Vfi, ti＞t
I-1+ Tz1+Tf1, t
0=0, Tz1=Tf1=0.08s, i=1,2,3,4 ... N begins constantly to be one-period S constantly to tn that S is 50min from t1.
Experiment three:
The alkalescence working fluid places cell body 6, graphite rod 2 is fixed in the cylinder hole of cylinder body 1, whole then the immersion in the alkaline working fluid; Graphite rod 2 connects the direct current pulse power source negative pole; Cylinder body 1 connects the direct current pulse power source positive pole, and working fluid recycle pump 5 extracts alkaline working fluid through working fluid loop head pipe 4 from cell body 6, alkaline working fluid is injected in the cylinder hole of cylinder body 1 through working fluid loop exit pipe 3 simultaneously; Alkaline working fluid formation in the cylinder hole is circulated; And to keep alkaline working fluid liquid temperature be 35 ± 5 ℃, between graphite rod 2 and cylinder body 1, applies DC pulse and handle one-period S, accomplishes aluminium alloy engine cylinder body cylinder hole potteryization;
Said alkaline working fluid is made up of sodium wolframate, sodium aluminate, Pottasium Hydroxide and water glass, and wherein the concentration of sodium wolframate is 3g/L, and the concentration of sodium aluminate is 6g/L, and the concentration of Pottasium Hydroxide is 2g/L, and the concentration of water glass is 8g/L;
DC pulse carries out in such a way in the said one-period S:
At t1 constantly, exporting a width is that Tz1, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf1, amplitude are the negative-going pulse of Vf1;
At t2 constantly, exporting a width is that Tz2, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf2, amplitude are the negative-going pulse of Vf1;
By same rule,
At ti constantly, exporting a width is that Tzi, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tfi, amplitude are the negative-going pulse of Vf1;
The direct impulse amplitude of any time equates to be Vz1, and direct impulse amplitude Vz1 is 520V, and the negative-going pulse amplitude of any time equates to be Vf1, and negative-going pulse amplitude Vf1 is-80V that pulse-repetition is 200Hz, Tzi=Tfi, Vzi＞Vfi, ti＞t
I-1+ Tz1+Tf1, t
0=0, Tz1=Tf1=0.05s, i=1,2,3,4 ... N begins constantly to be one-period S constantly to tn that S is 50min from t1.
Claims (9)
1. aluminium alloy engine cylinder body cylinder hole ceramic treatment method is characterized in that aluminium alloy engine cylinder body cylinder hole ceramic treatment method is following:
The alkalescence working fluid places cell body (6); Graphite rod (2) is fixed in the cylinder hole of cylinder body (1); Whole then the immersion in the alkaline working fluid, graphite rod (2) connects the direct current pulse power source negative pole, and cylinder body (1) connects the direct current pulse power source positive pole; Working fluid recycle pump (5) extracts alkaline working fluid through working fluid loop head pipe (4) from cell body (6); Through working fluid loop exit pipe (3) alkaline working fluid is injected in the cylinder hole of cylinder body (1) simultaneously, the alkaline working fluid formation in the cylinder hole is circulated, and keep alkaline working fluid liquid temperature not to be higher than 50 ℃; Between graphite rod (2) and cylinder body (1), apply DC pulse and handle one-period S, accomplish aluminium alloy engine cylinder body cylinder hole potteryization;
Said alkaline working fluid is made up of Pottasium Hydroxide and water glass, and wherein the concentration of Pottasium Hydroxide is 1g/L～2g/L, and the concentration of water glass is 2g/L～20g/L;
DC pulse carries out in such a way in the said one-period S:
At t1 constantly, exporting a width is that Tz1, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf1, amplitude are the negative-going pulse of Vf1;
At t2 constantly, exporting a width is that Tz2, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf2, amplitude are the negative-going pulse of Vf1;
By same rule,
At ti constantly, exporting a width is that Tzi, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tfi, amplitude are the negative-going pulse of Vf1;
The direct impulse amplitude of any time equates to be Vz1, and direct impulse amplitude Vz1 is 500V～700V, and the negative-going pulse amplitude of any time equates to be Vf1, and negative-going pulse amplitude Vf1 is-150V～-30V, pulse-repetition is 20Hz～500Hz,
Tzi=Tfi, Vzi＞Vfi, ti＞t
I-1+ Tz1+Tf1, t
0=0, Tz1=Tf1=0.01s～0.08s, i=1,2,3,4 ... N begins constantly to be one-period S constantly to tn that S is 40min～90min from t1.
2. according to the said aluminium alloy engine cylinder body of claim 1 cylinder hole ceramic treatment method, it is characterized in that alkaline working fluid is made up of Pottasium Hydroxide and water glass described in the step 1, wherein the concentration of Pottasium Hydroxide is 2g/L, and the concentration of water glass is 15g/L.
3. according to the said aluminium alloy engine cylinder body of claim 1 cylinder hole ceramic treatment method, it is characterized in that the amplitude of direct impulse described in step 2 Vz1 is 520V, negative-going pulse amplitude Vf1 is-80V.
4. the said aluminium alloy engine cylinder body of claim 1 cylinder hole ceramic treatment method is characterized in that aluminium alloy engine cylinder body cylinder hole ceramic treatment method is following:
The alkalescence working fluid places cell body (6); Graphite rod (2) is fixed in the cylinder hole of cylinder body (1); Whole then the immersion in the alkaline working fluid, graphite rod (2) connects the direct current pulse power source negative pole, and cylinder body (1) connects the direct current pulse power source positive pole; Working fluid recycle pump (5) extracts alkaline working fluid through working fluid loop head pipe (4) from cell body (6); Through working fluid loop exit pipe (3) alkaline working fluid is injected in the cylinder hole of cylinder body (1) simultaneously, the alkaline working fluid formation in the cylinder hole is circulated, and keep alkaline working fluid liquid temperature not to be higher than 50 ℃; Between graphite rod (2) and cylinder body (1), apply DC pulse and handle one-period S, accomplish aluminium alloy engine cylinder body cylinder hole potteryization;
Said alkaline working fluid is made up of with Pottasium Hydroxide and water glass sodium wolframate or sodium aluminate; Wherein the concentration of sodium wolframate is 1g/L～8g/L; The concentration of sodium aluminate is 1g/L～10g/L, and the concentration of Pottasium Hydroxide is 1g/L～2g/L, and the concentration of water glass is 2g/L～20g/L;
DC pulse carries out in such a way in the said one-period S:
At t1 constantly, exporting a width is that Tz1, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf1, amplitude are the negative-going pulse of Vf1;
At t2 constantly, exporting a width is that Tz2, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf2, amplitude are the negative-going pulse of Vf1;
By same rule,
At ti constantly, exporting a width is that Tzi, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tfi, amplitude are the negative-going pulse of Vf1;
The direct impulse amplitude of any time equates to be Vz1, and direct impulse amplitude Vz1 is 500V～700V, and the negative-going pulse amplitude of any time equates to be Vf1, and negative-going pulse amplitude Vf1 is-150V～-30V, pulse-repetition is 20Hz～500Hz,
Tzi=Tfi, Vzi＞Vfi, ti＞t
I-1+ Tz1+Tf1, t
0=0, Tz1=Tf1=0.01s～0.08s, i=1,2,3,4 ... N begins constantly to be one-period S constantly to tn that S is 40min～90min from t1.
5. according to the said aluminium alloy engine cylinder body of claim 4 cylinder hole ceramic treatment method, it is characterized in that alkaline working fluid is made up of Pottasium Hydroxide and water glass described in the step 1, wherein the concentration of Pottasium Hydroxide is 2g/L, and the concentration of water glass is 15g/L.
6. according to the said aluminium alloy engine cylinder body of claim 4 cylinder hole ceramic treatment method, it is characterized in that the amplitude of direct impulse described in step 2 Vz1 is 520V, negative-going pulse amplitude Vf1 is-80V.
7. the said aluminium alloy engine cylinder body of claim 1 cylinder hole ceramic treatment method is characterized in that aluminium alloy engine cylinder body cylinder hole ceramic treatment method is following:
The alkalescence working fluid places cell body (6); Graphite rod (2) is fixed in the cylinder hole of cylinder body (1); Whole then the immersion in the alkaline working fluid, graphite rod (2) connects the direct current pulse power source negative pole, and cylinder body (1) connects the direct current pulse power source positive pole; Working fluid recycle pump (5) extracts alkaline working fluid through working fluid loop head pipe (4) from cell body (6); Through working fluid loop exit pipe (3) alkaline working fluid is injected in the cylinder hole of cylinder body (1) simultaneously, the alkaline working fluid formation in the cylinder hole is circulated, and keep alkaline working fluid liquid temperature not to be higher than 50 ℃; Between graphite rod (2) and cylinder body (1), apply DC pulse and handle one-period S, accomplish aluminium alloy engine cylinder body cylinder hole potteryization;
Said alkaline working fluid is made up of sodium wolframate, sodium aluminate, Pottasium Hydroxide and water glass; Wherein the concentration of sodium wolframate is 1g/L～8g/L; The concentration of sodium aluminate is 1g/L～10g/L, and the concentration of Pottasium Hydroxide is 1g/L～2g/L, and the concentration of water glass is 2g/L～20g/L;
DC pulse carries out in such a way in the said one-period S:
At t1 constantly, exporting a width is that Tz1, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf1, amplitude are the negative-going pulse of Vf1;
At t2 constantly, exporting a width is that Tz2, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tf2, amplitude are the negative-going pulse of Vf1;
By same rule,
At ti constantly, exporting a width is that Tzi, amplitude are the direct impulse of Vz1,
Exporting a width during this end-of-pulsing immediately is that Tfi, amplitude are the negative-going pulse of Vf1;
The direct impulse amplitude of any time equates to be Vz1, and direct impulse amplitude Vz1 is 500V～700V, and the negative-going pulse amplitude of any time equates to be Vf1, and negative-going pulse amplitude Vf1 is-150V～-30V, pulse-repetition is 20Hz～500Hz,
Tzi=Tfi, Vzi＞Vfi, ti＞t
I-1+ Tz1+Tf1, t
0=0, Tz1=Tf1=0.01s～0.08s, i=1,2,3,4 ... N begins constantly to be one-period S constantly to tn that S is 40min～90min from t1.
8. according to the said aluminium alloy engine cylinder body of claim 7 cylinder hole ceramic treatment method, it is characterized in that alkaline working fluid is made up of Pottasium Hydroxide and water glass described in the step 1, wherein the concentration of Pottasium Hydroxide is 2g/L, and the concentration of water glass is 15g/L.
9. according to the said aluminium alloy engine cylinder body of claim 7 cylinder hole ceramic treatment method, it is characterized in that the amplitude of direct impulse described in step 2 Vz1 is 520V, negative-going pulse amplitude Vf1 is-80V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102009656A CN102691086A (en) | 2012-06-18 | 2012-06-18 | Cylinder hole ceramic-forming treatment method for aluminum alloy engine cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102009656A CN102691086A (en) | 2012-06-18 | 2012-06-18 | Cylinder hole ceramic-forming treatment method for aluminum alloy engine cylinder body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102691086A true CN102691086A (en) | 2012-09-26 |
Family
ID=46856816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102009656A Pending CN102691086A (en) | 2012-06-18 | 2012-06-18 | Cylinder hole ceramic-forming treatment method for aluminum alloy engine cylinder body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102691086A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014803A (en) * | 2012-12-28 | 2013-04-03 | 江苏大学 | Small hole strengthening method with combination of laser shock and micro-arc oxidation |
| CN103526252A (en) * | 2013-10-31 | 2014-01-22 | 哈尔滨工业大学 | Method for composite ceramic treatment of rotor spinning cup |
| CN103775333A (en) * | 2014-01-24 | 2014-05-07 | 哈尔滨工业大学 | Three-screw pump machine barrel and ceramic treatment method of inner surface of three-screw pump machine barrel |
| CN108368633A (en) * | 2015-09-03 | 2018-08-03 | 美特倍股份有限公司 | Form the improved method of the pipeline coatings of cylinder cover and thus obtained cylinder cover |
| CN109371441A (en) * | 2018-11-28 | 2019-02-22 | 中国特种飞行器研究所 | A kind of inner-cavity structure differential arc oxidation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1050606B1 (en) * | 1997-12-17 | 2003-06-04 | Isle Coat Limited | Method for producing hard protection coatings on articles made of aluminium alloys |
| CN1554806A (en) * | 2003-12-23 | 2004-12-15 | 长安大学 | Micro arc oxidation treating process for aluminium alloy cylinder inner surface |
| CN101158401A (en) * | 2007-11-20 | 2008-04-09 | 曲阜金皇活塞股份有限公司 | Ceramic cylinder and producing technology thereof |
| CN101220493A (en) * | 2006-10-16 | 2008-07-16 | 杜克勤 | Surface ceramic method for aluminum, magnesium alloy and product thereof |
-
2012
- 2012-06-18 CN CN2012102009656A patent/CN102691086A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1050606B1 (en) * | 1997-12-17 | 2003-06-04 | Isle Coat Limited | Method for producing hard protection coatings on articles made of aluminium alloys |
| CN1554806A (en) * | 2003-12-23 | 2004-12-15 | 长安大学 | Micro arc oxidation treating process for aluminium alloy cylinder inner surface |
| CN101220493A (en) * | 2006-10-16 | 2008-07-16 | 杜克勤 | Surface ceramic method for aluminum, magnesium alloy and product thereof |
| CN101158401A (en) * | 2007-11-20 | 2008-04-09 | 曲阜金皇活塞股份有限公司 | Ceramic cylinder and producing technology thereof |
Non-Patent Citations (3)
| Title |
|---|
| 宋润滨等: "轻合金等离子体增强电化学表面陶瓷化进展", 《轻合金加工技术》 * |
| 礼洁冰等: "电参数对TC4 钛合金微弧氧化陶瓷膜的影响", 《沈阳理工大学学报》 * |
| 辛铁柱: "铝合金表面微弧氧化陶瓷膜生成及机理的研究", 《中国博士学位论文全文数据库》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014803A (en) * | 2012-12-28 | 2013-04-03 | 江苏大学 | Small hole strengthening method with combination of laser shock and micro-arc oxidation |
| CN103014803B (en) * | 2012-12-28 | 2016-03-02 | 江苏大学 | The reinforcement method for small hole that a kind of laser-impact and differential arc oxidation combine |
| CN103526252A (en) * | 2013-10-31 | 2014-01-22 | 哈尔滨工业大学 | Method for composite ceramic treatment of rotor spinning cup |
| CN103775333A (en) * | 2014-01-24 | 2014-05-07 | 哈尔滨工业大学 | Three-screw pump machine barrel and ceramic treatment method of inner surface of three-screw pump machine barrel |
| CN103775333B (en) * | 2014-01-24 | 2017-02-08 | 哈尔滨工业大学 | Three-screw pump machine barrel and ceramic treatment method of inner surface of three-screw pump machine barrel |
| CN108368633A (en) * | 2015-09-03 | 2018-08-03 | 美特倍股份有限公司 | Form the improved method of the pipeline coatings of cylinder cover and thus obtained cylinder cover |
| CN109371441A (en) * | 2018-11-28 | 2019-02-22 | 中国特种飞行器研究所 | A kind of inner-cavity structure differential arc oxidation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102691086A (en) | Cylinder hole ceramic-forming treatment method for aluminum alloy engine cylinder body | |
| JP4828672B2 (en) | Method for anodizing an object | |
| CN103014804A (en) | Aluminum alloy with army-green micro-arc oxidation ceramic membrane on surface and preparation method of aluminum alloy | |
| CN103752965A (en) | Electrochemical machining tool and electrochemical machining method with linear feeding and rotary feeding combination for blisk | |
| CN104384643A (en) | Electrolytic machining method for thin-wall machine case of aero-engine | |
| CN102634833A (en) | Method for composite surface treatment of aluminum alloy tire mold | |
| CN103386521A (en) | Micro-hole electric discharge and electrolytic combined machining multi-channel symmetrical flushing device and method | |
| CN102041538A (en) | Method for preparing aluminum-copper alloy microarc oxidation film | |
| CN104109891A (en) | Method for preparing aluminum alloy anode oxide film by direct-current superposition pulse voltage | |
| CN102199785A (en) | Microarc oxidation solution of titanium alloy wear-resistant coating and application thereof | |
| CN101502901A (en) | Thin electrode for electrolytic machining of integral wheel | |
| US20160362810A1 (en) | Electrochemical machining employing electrical voltage pulses to drive reduction and oxidation reactions | |
| CN106312208A (en) | Auxiliary anode electrolysis grinding and milling processing system and method | |
| CN104630872A (en) | Aluminum alloy surface nano hole processing method and method for bonding aluminum alloy to plastic | |
| CN104499023A (en) | Anodic oxidation method of spare part containing blind hole | |
| CN104711652A (en) | High-hardness hard anodization technology for processing hard aluminum alloy | |
| CN111390310B (en) | Cathode structure for fuel injection body of diesel engine and electrolytic machining method | |
| KR100695999B1 (en) | Anodizing method for matal surface using high-frequency pluse | |
| CN103484849A (en) | Method of processing surfaces of aluminium alloy pistons and precision friction pairs | |
| CN105195842A (en) | Electrolyte sealing device for tubular electrode electrolytic machining | |
| CN110344094A (en) | A kind of processing unit and method of aluminum alloy hard anode oxidation film layer field repair | |
| CN1857858A (en) | Fixture for electrolytic forming of three-head flexible feeding vane | |
| CN103878547B (en) | A kind of processing method of screw type oil-well stator | |
| KR102012617B1 (en) | Treatment Apparatus for Anodizing the inside of Objects Using Sealed Structure | |
| KR100573027B1 (en) | microarc oxidation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120926 |