CN101613866A - Pre-plating method and surface processing device - Google Patents

Pre-plating method and surface processing device Download PDF

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CN101613866A
CN101613866A CN200910152395A CN200910152395A CN101613866A CN 101613866 A CN101613866 A CN 101613866A CN 200910152395 A CN200910152395 A CN 200910152395A CN 200910152395 A CN200910152395 A CN 200910152395A CN 101613866 A CN101613866 A CN 101613866A
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processed
cylinder
cylinder body
electrode
warm air
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CN101613866B (en
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麻生智广
国冈诚也
村松仁
铃木伸行
石桥亮
河合真
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Suzuki Motor Corp
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Suzuki Motor Corp
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Abstract

Electroplate in advance in the method for the object surfaces of wanting processed at a kind of surface processing device of electrode that is equipped with by use, electrode is positioned as towards wanting processed surface, treatment solution is guided electrode and wants between the processed object surfaces, make electrode and want processed body surface energising, warm air is blown on the object of wanting processed from its outside in pre-plating processing, and wants processed object surfaces to be heated to the temperature of reaction of pre-plating processing.

Description

Pre-plating method and surface processing device
Technical field
The present invention relates to a kind of to wanting processed object surfaces carry out pre-electric plating method, for example, electroplate first being processed to the cylinder of engine cylinder block in perimeter surface electroplate in advance, also relate to a kind of surface processing device of carrying out this pre-plating method simultaneously.
Background technology
Traditionally, Japanese patent application is flat opens 9-3687 number (patent gazette 1) and discloses a kind of in the method for the cylinder inner peripheral surface of cylinder body being carried out heat air cylinder body in the pre-galvanized processing.In this heating means, the treatment solution that is stored in the cylinder-bore of cylinder body is heated by the well heater that is arranged in the cylinder-bore.
But in the conduct and the anode electrolysis etch of the pre-plating processing of the interior perimeter surface of the cylinder-bore of cylinder head bonded cylinder body were handled, electrode was set in the cylinder-bore, therefore just is difficult to install well heater in cylinder-bore, discloses as above patent gazette 1.
When well heater is not installed in the cylinder-bore of cylinder body, temperature tend to cylinder inner peripheral surface corresponding near having the part of cryogenic work erecting bed (work support base), thin-walled portion with high cooling performance, and each position decline that forms the part of cooling fin.Thereby, adding man-hour when cylinder inner peripheral surface being carried out anode electrolysis etch processing as pre-the plating, etch depth reduces in the low temperature position, therefore, may electroplate tack and inhomogeneity reduction in plating.
Summary of the invention
In view of above-mentioned situation, the object of the present invention is to provide a kind of can being controlled to be used for pre-temperature of reaction of electroplating processing by object surfaces temperature that equably will be processed, can optimize the pre-plating method and the surface processing device of pre-plating processing.
On the one hand, a kind ofly be equipped with the surface processing device of electrode to come wanting processed body surface carry out pre-electric plating method by use according to the invention provides, thereby realize this or other purpose, the method comprising the steps of:
Keeper electrode makes it towards wanting processed object surfaces;
Treatment solution directed into electrode and want between the processed object surfaces;
For electrode and object that will be processed are switched on;
Pre-the plating in the processing outside of air from it blown on the object of wanting processed; With
Will processed object surfaces be heated to the temperature of reaction that pre-plating is processed.
In this pre-plating method, the pre-plating processed and can be made up of the electrolytic etching processing.
In another aspect of the present invention, also provide a kind of pre-surface processing device of electroplating the object surfaces of wanting processed that is used for, this device comprises:
Electrode, this electrode are positioned as towards wanting processed object surfaces, and treatment solution is guided electrode and wants processed object surfaces on this position;
The power subsystem that is used to electrode and wants processed object to switch on; With
The warm air generation unit that comprises warm air air blast member, thus this warm air air blast member is equipped with and is used for air is blown on the object of wanting processed the warm air blast orifice that will processed object surfaces be heated to the temperature of reaction of pre-plating processing from its outside.
In aspect this, pre-plating processing can be that electrolytic etching is handled.
Preferably, processed object is the cylinder of cylinder body or the air-cooled engine with cooling fin, and will processed surface be the cylinder inner peripheral surface of cylinder body or cylinder.
What can expect is, can mobile warm air air blast member with on the low temperature position that warm air is blown to the object surfaces of wanting processed.
A plurality of warm air blast orifices can be set on a plurality of positions of wanting processed object.
According to pre-plating method of the present invention and surface processing device,, processed object surfaces to be heated to and be used for pre-temperature of reaction of electroplating processing by outside blowing hot-air from object with above-mentioned feature.Thereby the temperature on surface that will be processed can be controlled in the temperature of reaction that is used for pre-electroplating processes.Therefore, can optimize the pre-plating on the surface of wanting processed, and can improve and electroplate tack and electroplating evenness.
Will be by below with reference to clearer character of the present invention in the description of the drawings and further property feature.
Description of drawings
In the accompanying drawings:
Fig. 1 is the explanatory view of demonstration according to the configured in one piece of the surface processing device of the first embodiment of the present invention;
Fig. 2 is the electrode of device shown in the explanatory view 1 and the sectional view on every side of work erecting bed;
Fig. 3 be explanation as the object that will be handled by device shown in Figure 1, with the sectional view of cylinder head bonded cylinder body;
Fig. 4 is a chart of describing the temperature variation of each part of cylinder inner peripheral surface when warm air blows to cylinder body;
Fig. 5 is a chart of describing the temperature variation of each part of cylinder inner peripheral surface when not having warm air to blow to cylinder body; With
Fig. 6 is the explanatory view that shows the configured in one piece of surface processing device according to a second embodiment of the present invention.
Embodiment
Below with reference to description of drawings the preferred embodiments of the present invention.In addition, be noted that here, with reference to the accompanying drawings or the device the actual installation state in can use term " on " D score " right side " similar terms such as " left sides ".
[first embodiment (Fig. 1 to 5)]
With reference to Fig. 1 and 2, surface processing device 10 is used for by forcibly treatment solution (pre-electroplate liquid or electroplate liquid) being directed into and flow to cylinder inner peripheral surface 106, and make cylinder electrode 12 and cylinder body 100 energisings, at a high speed the cylinder inner peripheral surface 106 of engine cylinder block 100 is electroplated in advance or electroplated.Surface processing device 10 comprises: the electrode unit 13 that is equipped with the cylindrical electrode 12 and first containment member 11; Comprise steady brace 14, base portion or platform 17 be installed as the work of latch (connector pin) 15 and second containment member 16 of transom; Workpiece keeps anchor clamps or fixer 18; The closed cell 20 of the 3rd containment member 19 is equipped with; Treatment solution feeding unit 28; Power subsystem 29; With hot air blowers 30 as the warm air generation unit.
With cylinder head 104 bonded cylinder body 100 shown in Figure 3 by aluminium alloy casting.Cylinder body 100 comprises cylinder 101, crankcase 102 and cylinder head 104, and cylinder-bore 103 is formed in the cylinder 101.Cylinder head 104 is included in wherein and forms and in combustion chamber 105 that cylinder-bore 103 1 ends (upper end) are closed.Therefore, the cylinder-bore 103 of cylinder 101 is communicated with the combustion chamber 105 of cylinder head 104.By the surface processing device 10 pre-interior perimeter surface 106 of electroplating or electroplating the cylinder 101 of cylinder-bore 103.
Cylinder body 100 is used for air-cooled engine, particularly, comprises cylinder 101 and the cooling fin 114 that is set to the outer wall of cylinder head 104.Cooling fin 114 emits to the heat in cylinder 101 and the cylinder head 104 in the air, and cooling fin 114 is delivered to heat in the cylinder body from the outside effectively.
Air-breathing and vent valve port one 07 is formed into cylinder head 104, and the valve seat 108 that is used for air-breathing/vent valve is installed in air-breathing/vent valve port one 07.Valve seat 108 is made by ferrous metal, and when casting cylinder body 100 and cylinder head 104 combined (insertions), perhaps is pressed into after cylinder body 100 and cylinder head 104 are cast.The valve seat 109 of valve seat 108 is set to point to combustion chamber 105.
Oil duct 112 with opening portion 111 is formed in the cylinder body 100.One end of oil duct 112 is communicated with cylinder inner peripheral surface 106, and the other end of oil duct 112 is communicated with crankcase face 110.When engine moves, from oil duct 112 be fed in the cylinder-bore 103 oil lubrication cylinder inner peripheral surface 106 and along the piston (not shown) of its slip.
As illustrated in fig. 1 and 2, cylindrical electrode 12 is formed with the interior treatment solution passage 21 that is used for treatment solution directed into and flow in the cylindrical electrode 12, and is connected to power subsystem as described below 29.
When cylinder body 100 was positioned on the work installation base portion 17, cylindrical electrode 12 was inserted in the cylinder-bore 103 of cylinder body 100 by the crankcase face side from cylinder body 100.In this state, outer treatment solution passage 22 is formed between the cylinder inner peripheral surface 106 of the outer surface 23 of cylindrical electrode 12 and cylinder body 100.
Interior treatment solution passage 21 and outer treatment solution passage 22 communicate with each other in upper end 24 sides as the cylindrical electrode 12 of the end of cylinder head 104 sides, and interior treatment solution passage 21 and outer treatment solution passage 22 are connected to processing liquid bath 34 by pump 33A and pump 33B, thereby circulate forcibly and guide treatment solution.
First containment member 11 is by being installed to the top of cylindrical electrode 12 with the top screw thread bonded erection bolt 27 of cylindrical electrode 12.Under cylindrical electrode 12 was set at state in the cylinder-bore 103 of cylinder body 100, first containment member 11 was set in the combustion chamber 105 of cylinder head 104, thereby the valve sealing surface 109 (Fig. 3) of the valve seat 108 that is installed to cylinder head 104 is sealed.
By being attached to the top of cylindrical electrode 12 with top screw thread bonded erection bolt 27, the first containment members 11 of cylindrical electrode 12.When cylindrical electrode 12 was inserted into the cylinder-bore 103 of cylinder body 100, first containment member 11 was set in the combustion chamber 105 of cylinder head 104, thereby valve sealing surface 109 (see figure 3)s of the valve seat 108 that is fitted to cylinder head 104 are sealed.
Cylindrical electrode 12 extends downwards by installation base portion attachment plate 35 and is releasably attached to cylindrical electrode retainer member 36, wherein, base portion 17 is installed is installed on this installation base portion attachment plate 35.Electrode holder member 36 is fixed on the retainer sectional fixture 37, and this retainer sectional fixture 37 is kept by base portion platform 41 by base platform 40 then.
The outer treatment solution passage 39 that is communicated with outer treatment solution passage 22 is formed between electrode holder member 36 and the retainer member sectional fixture 37.The interior treatment solution passage 38 of treatment solution passage 21 is formed in the electrode holder member 36 in being connected to.Interior treatment solution passage 38 is connected to by pump 33A and handles liquid bath 34, and outer treatment solution passage 39 is connected to processing liquid bath 34 by pump 33B.Treatment solution feeding unit 28 comprises interior treatment solution passage 21,38, outer treatment solution passage 22,39, pump 33A, 33B and processing liquid bath 34.
By ejector priming 33B, the treatment solution in the processing liquid bath 34 (for example pre-electroplate liquid) flows successively and cycles through outer treatment solution runner 39,22, interior treatment solution runner 21,38, pump 33A and processing liquid bath 34.By ejector priming 33A, the treatment solution (for example electroplate liquid) in the processing liquid bath 34 flows successively and cycles through interior treatment solution runner 38,21, outer treatment solution runner 22,39, pump 33B and processing liquid bath 34.
As shown in Figure 2, work is installed base portion 17 and is contacted with the crankcase face 110 of cylinder body 100, makes cylinder body 100 be mounted thereon.At this moment, the steady brace 14 that the work that is inserted in is installed in the base portion 17 engages with the dowel hole (knock pin hole) 115 of the crankcase face 110 that is formed on cylinder body 100, thereby cylinder body 100 work that is positioned at is installed on the base portion 17.At this moment, for example, cylindrical second containment member 16 that is formed from a resin that the work that is installed in is installed on the base portion 17 is oriented to against the lower end " A " of the cylinder inner peripheral surface 106 of cylinder body 100, thus sealing lower end " A ".
When base portion 17 was installed in cylinder body 100 work that is installed in, the work that is arranged in was installed the latch 15 of base portion 17 and is fitted within a end on the crankcase face side of oil duct 112 of cylinder body 100.Have such as the latch 15 of the hollow structure of the containment member of 0 type wear ring on the periphery that is installed in it by the close property of liquid fit within an end of oil duct 112.In addition, latch 15 is connected to the flexible pipe mechanism that does not show, cleaning water or air are supplied by this flexible pipe mechanism, thereby cleaning water or air are fed to oil duct 112, in outer treatment solution passage 22 and the interior treatment solution passage 21.
By the air cylinder that operation does not show, workpiece keeps anchor clamps 18 to move up and down, the end face 113 of cylinder head 104 is pressed into work base portion side is installed, and will and the work that is clipped in of cylinder head 104 bonded cylinder body 100 is installed by base portion 17 and workpiece keeps between the anchor clamps 18.Be equipped with the closed cell 20 of the 3rd containment member 19 to be slidably disposed on workpiece at its front end and keep on the anchor clamps 18, thus closed clamp work install base portion 17 and workpiece keep between the anchor clamps 18, with the oil duct 112 of cylinder head 104 bonded cylinder body 100 in opening portion 111.
One end of the power subsystem 29 shown in Fig. 1 is connected to cylindrical electrode 12 by retainer member sectional fixture 37 and electrode holder member 36.The lower end of power subsystem 29 is connected to work erecting bed 17 and is connected to the cylinder body 100 that is installed on the work erecting bed 17.
When surface processing device 10 was used as pre-electroplanting device, power subsystem 29 was cylindrical electrode 12 and cylinder body 100 energisings, so that cylinder body 100 conducts are anodal, and cylindrical electrode 12 is as negative pole.
When surface processing device 10 was used as electroplanting device, power subsystem 29 was cylindrical electrode 12 and cylinder body 100 energisings, so that cylindrical electrode 12 conducts are anodal, and cylinder body 100 is as negative pole.
When surface processing device 10 as pre-electroplanting device and (for example carry out as pre-galvanized anode electrolysis etch, Japanese Patent Application discloses 2005-206948) time, the etch depth of the cylinder inner peripheral surface 106 by the anode electrolysis etch depends on the temperature of perimeter surface 106 in the cylinder body.
The anode electrolysis etch is being applied in the cylinder inner peripheral surface 106 of cylinder body 100, and hot air blowers 30 blows to hot blast on the cylinder inner peripheral surface 106, thus heating cylinder inner peripheral surface 106.
Hot air blowers 30 is equipped with the heating member 31 of the warm air that is used to produce 50 to 200 ℃, with the warm air air blast member 32 with the air blast mouth (air blowing opening) that is provided with for heating member 31, the warm air that is produced by heating member 31 is directly blown on the cylinder body 100 by its outside from cylinder body 100.The cylinder inner peripheral surface 106 of cylinder body 100 is used to the warm air of self-heating air blast member 32 and is heated to the temperature of reaction that pre-plating (anode electrolysis etch) is processed.Blow on the outside (outer wall) corresponding to the cylinder body 100 of the low temperature position of cylinder inner peripheral surface 106 from the Hot air quilt of the warm air blast orifice of warm air air blast member 32, and the temperature of cylinder inner peripheral surface 106 becomes evenly in anode electrolysis etch reaction temperature, so the etch depth of cylinder inner peripheral surface 106 becomes even.
In said structure, can locate a plurality of warm air air blast members 32 that each all has a warm air blast orifice, perhaps can locate single warm air air blast member 32 with a plurality of warm air blast orifices.
Utilize hot air blowers 30 that warm air is blown on the cylinder body 100, till the anode electrolysis etch by surface processing device 10 after and then cylinder body 100 is set to surface processing device 10 is handled and is done.Short period of time after and then cylinder body 100 is set to surface processing device 10 (for example, 100 seconds) in, under the low temperature of the cylinder inner peripheral surface 106 of cylinder body 100, on Hot air quilt blows to outer wall corresponding to the cylinder body 100 of the lower end " A " of the most close work erecting bed 17 from warm air air blast member 32, because the temperature of lower end " A " is lower than the temperature of centre portions " B " and upper end portion " C " of cylinder inner peripheral surface 106.
Short period of time after and then cylinder body 100 is set to surface processing device 10 is when being passed, Hot air quilt blows on the part that is formed with cooling fin 114 and thinner wall section in cylinder body 100, because reduce corresponding to the centre portions " B " of cylinder inner peripheral surface 106 in the cylinder body 100 of the part that is formed with cooling fin 114 and thinner wall section and the temperature of upper end " C ".
According to the reaction times that the anode electrolysis etch is handled, warm air air blast member 32 also can comprise the mobile unit of electric motor 42, screw 43 and the nut 44 shown in the long and short dash line among Fig. 1 and movable flexibly by utilization.Particularly, warm air air blast member 32 can be constructed to screw 43 and be abutted to the electric motor 42 that is installed on the base 40 tightly, and nut 44 is attached to warm air air blast member 32 and quilt can be installed on the screw 43 with screwing togather.In the starting stage that the anode electrolysis etch is handled, the warm air blast orifice of air blast member 32 is positioned on the outer wall corresponding to the cylinder body 100 of the lower end " A " of cylinder inner peripheral surface 106.Secondly, electric motor 42 is actuated to that warm air air blast member 32 is moved to cooling fin 114 and is formed on position in the cylinder body 100.
Next, will the operation of present embodiment be described.
As shown in Figure 2, install on the base portion 17 with the work that is installed in of cylinder head 104 bonded cylinder body 100, and crankcase face 110 vertical sensings down.At this moment, the steady brace 14 that base portion 17 is installed in work is fitted within the dowel hole 115 of cylinder body 100, thus the close property of latch 15 liquid of the positioning cylinder body 100 and the installation base portion 17 of will working fit within the end of crankcase face side of the oil duct 112 of cylinder body 100.
In this state, crankcase face 110 contacts with work erecting bed 17.In addition, cylindrical electrode 12 is inserted in the cylinder-bore 103 of cylinder body 100, first containment member 11 contacts (Fig. 3) with the valve seat 109 of the valve seat 108 that is attached to cylinder head 104, and second containment member 16 contacts with the lower end " A " of cylinder inner peripheral surface 106.
Workpiece keeps anchor clamps 18 to be lowered by by the operation air cylinder, and pushes the end face 113 with cylinder head 104 bonded cylinder body 100, keeps anchor clamps 18 and work to install between the base portion 17 thereby cylinder body 100 is clipped in workpiece.At this moment, first containment member 11 that is attached to the upper end 24 of cylindrical electrode 12 contacts with valve seat 109 pressure of the valve seat 108 that is attached to cylinder head 104, thus seal valve seat surface 109.Simultaneously, second containment member 16 that the work that is installed in is installed on the base portion 17 contacts with lower end " A " pressure of cylinder inner peripheral surface 106, thus sealing lower end " A ".
In the step below, closed cell 20 slides and keeps anchor clamps 18 against workpiece, and is installed in the opening portion 111 in the oil duct 112 of the 3rd containment member 19 closed cylinder body 100 on the closed cell 20.According to above-mentioned a series of operation, be set on the electroplanting device 10 with cylinder head 104 bonded cylinder body 100.
Being installed in cylinder body 100 under the state of surface processing device 10, is that the cylinder inner peripheral surface 106 of cylinder body 100 is implemented pre-electroplate processing and cleaning processing continuously.On the other hand, be installed in cylinder body 100 under the state of another surface processing device 10, carry out electroplating processes and clean for the cylinder inner peripheral surface 106 of cylinder body 100 continuously.
In pre-galvanized processing, carry out above-mentioned anode electrolysis etch and handle.In the anode electrolysis etch was handled, the ionogen of use such as phosphoric acid, sulfuric acid and thionamic acid (sulfamic acid) was as treatment solution, and in use, by operating pumps 33B, treatment solution flows to interior treatment solution passage 21 (Fig. 1) from outer treatment solution passage 22.In this state, power subsystem 29 is cylindrical electrode 12 and cylinder body 100 energisings, thereby cylindrical electrode 12 becomes negative pole and cylinder body 100 becomes positive pole.Therefore, make the cylinder inner peripheral surface 106 of cylinder body 100 become coarse by etch (corrosion) processing, and the set effect of uneven surface can increase the tack of electroplating film on cylinder inner peripheral surface 106.
On the other hand, in plating processing, use with being used for pre-the plating and process similar surface processing device, by treatment solution and the power on condition of selecting to be scheduled to, electroplating film is formed on the cylinder inner peripheral surface 106 of cylinder body 100.But, in this electroplating processes, opposite in treatment solution passage and positive and negative electrode and the pre-electroplating processes.That is, by operating pumps 33A, treatment solution is treatment solution passage 22 outside interior treatment solution passage 21 flows to, thereby and the cylindrical electrode 12 of switching on becomes anodal and cylinder body 100 becomes negative pole.
Pre-electroplate processing (anode electrolysis etch processings) and electroplate the reason that the treatment solution passage of processing differs from one another be the pre-treatment solution flow velocity of electroplating processing need be as far as possible little, thereby the temperature of reaction of the cylinder inner peripheral surface 106 by increase cylinder body 100 is improved etch.Therefore, as a kind of method that definitely treatment solution is contacted with cylinder inner peripheral surface 106, treatment solution passage 21 in treatment solution flows to from outer treatment solution passage 22.On the other hand, electroplating processing needs big as far as possible treatment solution flow velocity on cylinder inner peripheral surface 106, thereby the film that improves electroplating film forms speed.Therefore, treatment solution treatment solution passage 22 outside interior treatment solution passage 21 flows to.
Finish each and pre-electroplate and electroplate after the processing, end providing chemical liquid and electricity (energising), be installed under the state of electroplanting device 10 the enforcement cleaning in cylinder body then and process.Under any oil duct 112 all is not formed on situation in the cylinder body 100, by operating the water pump that does not show, treatment solution passage 21 and outer treatment solution passage 22 in the tank that rinse water never shows directly is fed to, thereby the cylinder inner peripheral surface 106 of purgative gas cylinder body 100.
On the other hand, under oil duct 112 has been formed on situation in the cylinder body 100, use oil duct 112 supply rinse water.
Particularly, after finishing pre-plating or electroplating, start water pump rinse water is fed to latch 15 and oil duct 112 from tank by flexible pipe mechanism, make rinse water continue treatment solution passage 22 and interior treatment solution passage 21 outside oil duct 112 flows to then, thereby clean oil duct 112 and cylinder inner peripheral surface 106 simultaneously.
Rinse water after the use is guided by outer treatment solution passage 22,39 and interior treatment solution passage 21,38 and handles liquid bath 34.This moment, the amount of the rinse water that will be supplied was adjusted to identical with evaporation of water amount owing to heat treated liquid.Therefore, the strength of fluid of treatment trough 34 remains unchanged.Finish clean processing after, the valve of Xian Shiing is not switched, and air is supplied to oil duct 112, thus discharge accumulates in the rinse water in the oil duct 112.
Pre-electroplate or electroplating processes in, rinse water is full of from flexible pipe mechanism to latch 15 part.Therefore, even treatment solution enters oil duct 112, because the pressure of rinse water arrives latch 15, treatment solution can not enter in latch 15 and the flexible pipe mechanism.
Electroplate in the processing (anode electrolysis etch processing) pre-, warm air is blown on the outer wall of cylinder body 100 by the warm air blast orifice 32 of hot air blowers 30, especially, blow to outer wall, thereby the temperature of cylinder inner peripheral surface 106 is elevated to the temperature of reaction of anode electrolysis etch processing corresponding to the lower end " A " of cylinder inner peripheral surface 106.
Figure 4 and 5 illustrate that and then anode electrolysis etch is applied in after cylinder inner peripheral surface 106 beginning of cylinder body 100 100 seconds the measuring result of the temperature change of the lower end of cylinder inner peripheral surface 106 " A ", centre portions " B " and upper end " C ".
Fig. 5 is a chart of describing the result of the anode electrolysis etch processing when not utilizing hot air blowers 30 warm air to be blown on the cylinder body 100.At this moment, the treatment solution temperature is 85 ℃, and the treatment solution flow velocity is 20cm/ second, and is 70A/dm from the current density that power subsystem 29 is fed to cylindrical electrode 12 and cylinder body 100 2At this moment, because warm air is not blown on the cylinder body 100, so the temperature of the lower end " A " of the cylinder inner peripheral surface 106 of cylinder body 100 is lower than the temperature of other centre portions " B " and upper end " C ", and therefore, the etch depth of the lower end of cylinder inner peripheral surface 106 " A " is less than other centre portions " B " and upper end " C ".
On the other hand, Fig. 4 is that the warm air air blast member 32 that is described in the air blast mouth with hot air blowers 30 is positioned in corresponding to the lower end " A " of cylinder inner peripheral surface 106 apart from the position of the about 10cm of outer wall of cylinder body 100 and warm air with 1.75m 3/ minute, with under the state on 180 ℃ of outer walls that are blown to cylinder body 100, the result's that the anode electrolysis etch is handled chart.Treatment solution temperature, treatment solution flow velocity and current density are similar to Fig. 5's, in this state, the temperature of the lower end " A " of the cylinder inner peripheral surface 106 of cylinder body 100 raises and reaches and the identical temperature of other centre portionss " B " and upper end " C ", therefore, the temperature of cylinder inner peripheral surface 106 is even.Therefore, the etch depth in the cylinder inner peripheral surface 106 of cylinder body 100 is identical with the degree of depth on lower end " A ", upper end " B " and upper end " C ".
According to the embodiment of above-mentioned feature, will obtain following advantage and effect (1) and (2).
(1) during the anode electrolysis etch of perimeter surface 106 is handled in as the cylinder of the cylinder body 100 of pre-electroplating processes, warm air is blown on the cylinder body 100 by the outside from cylinder body 100 by the warm air blast orifice of warm air air blast member 32, thereby the cylinder inner peripheral surface 106 of cylinder body 100 is heated to the temperature of reaction that the anode electrolysis etch is handled, and therefore the temperature of cylinder inner peripheral surface 106 can be controlled to temperature of reaction.So, can realize the optimization of the anode electrolysis etch processing of cylinder inner peripheral surface 106, and can make the etch depth of cylinder inner peripheral surface 106 even, thereby improve the attached property seen of plating and the electroplating evenness of cylinder inner peripheral surface 106.
(2) since and then cylinder body 100 be set to after the surface processing device 10, hot air blowers 30 directly blows to warm air on the cylinder 100, thus hot air blowers 30 can be used to before pre-electroplating processes, to carry out oil removal treatment and can be dry attached to the oil removing liquid of the outer wall of cylinder body.Therefore, can prevent oil removing liquid corrosion cylinder body 100.
[second embodiment (Fig. 6)]
Fig. 6 diagram is according to second embodiment of surface processing device of the present invention.In a second embodiment, be denoted by like references part identical and simplification here or omission explanation to it with first embodiment.
Be that according to the electroplanting device 50 of second embodiment and difference the warm air blast orifice of hot air blowers 30 is set on a plurality of positions according to the surface processing device 10 of first embodiment, for example, on two positions facing each other of the cylinder body 100 that is set to electroplanting device 50, be that also Hot air quilt blows on the cylinder body 100 from the warm air blast orifice simultaneously.
According to this second embodiment, can obtain advantage (1) and (2) and the following advantage (3) of first embodiment.
(3) the warm air blast orifice of the warm air air blast member 32 of hot air blowers 30 is set at a plurality ofly on the position of cylinder body 100, and cylinder body 100 is simultaneously by the warm air beating from a plurality of warm air blast orifices.Therefore, the cylinder inner peripheral surface 106 of cylinder body 100 can be heated to uniform temperature very soon during handling as the anode electrolysis etch of pre-electroplating processes.
Be noted that further the present invention is not limited to described embodiment, and can adopt multiple other change and modification and do not deviate from the scope of additional claim.
For example, though in the present embodiment, processed object is cylinder head bonded cylinder body with air-cooled engine, and the present invention can also be applied in cooled engine and isolating cylinder body of cylinder head or cylinder.

Claims (7)

1. one kind is equipped with the surface processing device of electrode to carry out pre-electric plating method to wanting processed object surfaces by use, comprises the steps:
Positioning of electrode is become towards described want processed object surfaces;
Treatment solution is directed between described electrode and the described object surfaces that will be processed;
Be described electrode and described object energising that will be processed;
Pre-the plating in the processing outside of air from described object that will be processed blown on the described object that will be processed;
To processed object surfaces be heated to the temperature of reaction that is used for described pre-plating processing with described.
2. pre-plating method as claimed in claim 1 is characterized in that, wherein,
Described pre-plating processing is handled by electrolytic etching and is formed.
3. one kind is used for it is characterized in that wanting processed object surfaces to carry out pre-galvanized surface processing device, comprising:
Electrode, this electrode are oriented to towards wanting processed object surfaces, and wherein treatment solution is guided between described electrode and the described object surfaces that will be processed;
Be used to described electrode and the described supply unit of wanting processed object to switch on; With
The warm air generation unit that comprises warm air air blast member, this warm air air blast member are equipped with and are used for air is blown to described wanting on the processed object will describedly want processed object surfaces to be heated to be used for the warm air blast orifice of the temperature of reaction that described pre-plating processes from described outside of wanting processed object.
4. surface processing device as claimed in claim 3 is characterized in that, wherein,
Described pre-plating processing is that electrolytic etching is handled.
5. surface processing device as claimed in claim 3 is characterized in that, wherein,
Described will processed object be the cylinder of cylinder body or the air cooled engine with cooling fin, and will processed surface be the cylinder inner peripheral surface of described cylinder body or described cylinder.
6. surface processing device as claimed in claim 3 is characterized in that, wherein,
Described warm air air blast member can move, warm air is blown to the low temperature position of described object surfaces that will be processed.
7. surface processing device as claimed in claim 3 is characterized in that, wherein,
A plurality of warm air blast orifices are set at round a plurality of positions of described object that will be processed.
CN2009101523956A 2008-06-25 2009-06-25 Pre-plating method and surface processing device Expired - Fee Related CN101613866B (en)

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JP2008-165985 2008-06-25
JP2008165985A JP5167983B2 (en) 2008-06-25 2008-06-25 Plating pretreatment method and surface treatment apparatus
JP2008165985 2008-06-25

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CN101613866B CN101613866B (en) 2012-09-12

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Publication number Priority date Publication date Assignee Title
CN111519234A (en) * 2020-04-30 2020-08-11 中国航发成都发动机有限公司 Clamp for chromium plating of aero-engine case and chromium plating method thereof
CN111519234B (en) * 2020-04-30 2022-04-29 中国航发成都发动机有限公司 Clamp for chromium plating of aero-engine case and chromium plating method thereof

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