CN108796559A - Reduce the plating method and device of gas cylinder inner surface plating nickel-phosphorus alloy porosity - Google Patents
Reduce the plating method and device of gas cylinder inner surface plating nickel-phosphorus alloy porosity Download PDFInfo
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- CN108796559A CN108796559A CN201810872261.0A CN201810872261A CN108796559A CN 108796559 A CN108796559 A CN 108796559A CN 201810872261 A CN201810872261 A CN 201810872261A CN 108796559 A CN108796559 A CN 108796559A
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- gas cylinder
- plating
- chemical plating
- nickel
- chemical
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- 238000007747 plating Methods 0.000 title claims abstract description 193
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910001096 P alloy Inorganic materials 0.000 title claims abstract description 16
- OFNHPGDEEMZPFG-UHFFFAOYSA-N phosphanylidynenickel Chemical compound [P].[Ni] OFNHPGDEEMZPFG-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 106
- 239000007788 liquid Substances 0.000 claims abstract description 86
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 62
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 30
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 9
- 239000000725 suspension Substances 0.000 claims description 31
- 210000002421 cell wall Anatomy 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 2
- 229910001453 nickel ion Inorganic materials 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 175
- 101100493712 Caenorhabditis elegans bath-42 gene Proteins 0.000 description 17
- 239000010410 layer Substances 0.000 description 16
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000009713 electroplating Methods 0.000 description 3
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 3
- 238000006388 chemical passivation reaction Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000004437 phosphorous atom Chemical group 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/021—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal alloy layer
Abstract
The invention discloses the plating methods for reducing gas cylinder inner surface plating nickel-phosphorus alloy porosity, include the following steps, gas cylinder is placed in plating slot by (a) vertically, and the hose of electric bath groove is connected to the bottom of gas cylinder, and electroplate liquid is passed through into gas cylinder;Nickel stick is placed into from the top of gas cylinder in gas cylinder, the anode of motor-generator set is connect with nickel stick, the body of the cathode of motor-generator set and gas cylinder is connected, starts motor-generator set, is electroplated 2-3 minutes;(b) electroplate liquid in gas cylinder is discharged, takes out nickel stick, removed the hose being connect with electric bath groove, gas cylinder inner surface is rinsed well;The hose of chemical plating liquid bath outlet end is connected to gas cylinder bottom, by being flexible coupling at the top of gas cylinder for chemical plating liquid bath liquid feeding end, chemical plating fluid, cyclic chemical plating solution 1-1.5 hours are passed through into gas cylinder;(c) after chemical plating, chemical plating fluid is discharged, the inner surface of gas cylinder is rinsed well, gas cylinder is placed into heating furnace, 2-3 hours are kept the temperature at 200-220 DEG C, is come out of the stove air-cooled 30 minutes.
Description
Technical field
The invention belongs to gas cylinder processing technique fields, and in particular to a kind of reduction gas cylinder inner surface plating nickel-phosphorus alloy porosity
Plating method and device.
Background technology
The quality requirement of the inner surface of gas cylinder is higher, and in particular for storing the gas cylinder of corrosive gas, inner surface needs
With higher anticorrosive property.In the prior art, mostly it is the anticorrosion that gas cylinder inner surface is improved by the method for chemical passivation
Ability, inner surface generates one layer of passivating film after chemical passivation, and passivating film slows down the corrosion on surface, but the porosity of passivation layer compared with
Greatly, in use, the inner surface of gas cylinder is susceptible to spot corrosion, and spot corrosion refers to longitudinal corrosion locally occur in metal surface
The minor change of hole, erosion concentration or temperature can make the swift and violent increase of etch pit, cause gas cylinder inner surface rotten on a large scale
Erosion.The inner surface anti-corrosion capability of gas cylinder is poor, greatly shortens the service life of gas cylinder, and with the inner surface of gas cylinder
Resistance to corrosion declines, and causes adverse reaction, gas bottle explosion can be caused when serious.It is in the prior art, in the interior table to gas cylinder
The apparatus structure that face is handled is complicated, cumbersome.
Invention content
It is an object of the invention to:Deficiency in the prior art is solved, a kind of reduction gas cylinder inner surface nickel-plated phosphor conjunction is provided
The plating method and device of golden porosity.
To achieve the goals above, the technical solution adopted by the present invention is:A kind of reduction gas cylinder inner surface plating nickel-phosphorus alloy
The plating device of porosity, including plating slot, the suspension tooling for hanging gas cylinder, electroplated components and chemical plating component, it is described
Hang the top that tooling is set to the plating slot;The electroplated components include motor-generator set and electric bath groove, and the motor-generator set has
Anode and cathode, the electric bath groove can be connected to the gas cylinder bottom;The chemical plating component includes filter and chemical plating
Liquid bath, the filter are set to the outlet end of the chemical plating liquid bath, and the outlet end of the chemical plating liquid bath can be with the gas cylinder
Bottom connection, the liquid feeding end of the chemical plating liquid bath can be connected to the top of the gas cylinder.
Further, the suspension tooling includes top plate and bottom plate, connecting rod and the suspension arm set on the top plate, described
Connecting rod is set to a plate face of the top plate far from the suspension arm, the bottom plate and one of the connecting rod far from the top plate
End connection, the top plate are equipped with the first mounting hole of fixed gas cylinder, and the bottom plate is equipped with the second mounting hole of fixed gas cylinder, described
First mounting hole is equipped with the first connector, and second mounting hole is equipped with the second connector, first connector and gas cylinder top
Connection, second connector are connect with the gas cylinder bottom.
Further, the suspension tooling further includes being used to support the supporting rod of the top plate, and the plating slot has phase
To the first cell wall and the second cell wall of setting, the bracing member is set between first cell wall and second cell wall.
Further, the chemical plating liquid bath is equipped with the heating device for heating chemical plating solution.
The plating method for being reduced gas cylinder inner surface plating nickel-phosphorus alloy porosity using the plating device, is included the following steps,
(a) gas cylinder is mounted in the suspension tooling, and gas cylinder is placed on vertically in the plating slot, by electroplate liquid
The hose of slot is connected to the bottom of gas cylinder, and electroplate liquid is passed through into gas cylinder by water pump;Nickel stick is placed at the top of gas cylinder
In gas cylinder, the anode of the motor-generator set is connect with the nickel stick, the body of the cathode of motor-generator set and gas cylinder is connected, started whole
Stream machine is electroplated 2-3 minutes;
(b) after being electroplated, the gas cylinder is proposed into plating slot, the electroplate liquid in gas cylinder is discharged, takes out nickel stick, is removed
The hose being connect with electric bath groove rinses gas cylinder inner surface well;The hose of chemical plating liquid bath outlet end is connected to gas cylinder
The hose of chemical plating liquid bath liquid feeding end is connected to the top of gas cylinder by bottom, and chemical plating fluid, cyclic chemical plating are passed through into gas cylinder
Liquid 1-1.5 hours;
(c) after chemical plating, chemical plating fluid is discharged, the inner surface of gas cylinder is rinsed well, gas cylinder is placed into heating
In stove, 2-3 hours are kept the temperature at 200-220 DEG C, is come out of the stove air-cooled 30 minutes.
Further, the ingredient of the electroplate liquid is NiCl2And HCl, NiCl2A concentration of 200-250g/L, HCl's is dense
Degree is 300-320ml/L, and the temperature of the electroplate liquid is 18-30 DEG C, and the pH value of the electroplate liquid is 0.5-3.0.
Further, the cathode-current density is 5-8A/dm2。
Further, in the chemical plating fluid nickel ion a concentration of 4.2-4.5g/L, the PH values of chemical plating fluid are
The temperature of 4.5-4.7, chemical plating fluid are 87-93 DEG C.
By adopting the above-described technical solution, the beneficial effects of the invention are as follows:
1. in the plating device of the present invention, gas cylinder is fixed in suspension tooling, suspension tooling, which is located at, applies groove top portion, by gas
Bottle is suspended in plating slot, and gas cylinder is made to remain vertical state, in plating and during chemical plating, plating liquid energy adequately with
Gas cylinder inner wall contacts, and reduces dead angle, makes plating and chemical plating fully, uniformly.In the apparatus of the present, gas cylinder is suspended on and is applied
In coating bath, when the different technique of progress needs to change different plating solutions, it only need to lift suspension tooling, gas cylinder is carried from plating slot
It rises, replaces the hose of gas cylinder bottom, it is easy to operate, and the structure for hanging tooling is simple, saves processing cost.?
In the present invention, when gas cylinder is connect with electroplated components, gas cylinder can be electroplated, when gas cylinder is connect with chemical plating component, into gas cylinder
It is passed through the plating solution of cycle, keeps nickel, phosphorus atoms in plating solution co-deposited, forming a laminated layer gold in the inner surface of gas cylinder is attached to
Gas cylinder inner surface improves the Corrosion Protection of gas cylinder.
2. in the plating method of the present invention, the nickel layer of the first electroplating surface layer in gas cylinder, then existed by chemical plating
The inner surface of gas cylinder forms alloy-layer keeps nickel, phosphorus atoms in plating process common using electroplated layer as the base of chemical plating
It is deposited on the surface of electroplated layer, enhances the stability of chemical deposit, simultaneously because the surfacing of electroplated layer, can effectively reduce
The hole of chemical deposit, then postmenstruation heat treatment, increase the degrees of fusion between the surface of gas cylinder and electroplated layer, chemical deposit,
Enhance the binding force between coating, to improve the Corrosion Protection of gas cylinder.
Description of the drawings
Schematic front view when Fig. 1 is the plating of the plating device of the present invention;
Schematic front view when Fig. 2 is the chemical plating of the plating device of the present invention;
Fig. 3 is the schematic front view of the plating slot and suspension assembly of the plating device of the present invention;
Fig. 4 is the schematic top plan view of the plating device of the present invention;
Fig. 5 is the enlarged diagram of the part A in Fig. 3;
Reference numeral:1- plating slots, 2- hang tooling, 21- top plates, 22- bottom plates, 23- connecting rods, 24- suspension arms, 25-
First connector, the second connectors of 26-, 27- supporting rods, the first cell walls of 28-, the second cell walls of 29-, 3- electroplated components, 31- motor-generator sets,
311- nickel sticks, 32- electric bath grooves, 4- chemical plating components, 41- filters, 42- chemical plating liquid baths, 5- gas cylinders.
Specific implementation mode
With reference to attached drawing 1-5, specific description is done to embodiments of the present invention.
Embodiment 1:A kind of plating device reducing gas cylinder inner surface plating nickel-phosphorus alloy porosity, including plating slot 1, use
In suspension tooling 2, electroplated components 3 and the chemical plating component 4 of suspension gas cylinder 5, the suspension tooling 2 is set to the plating slot 1
Top;The electroplated components 3 include motor-generator set 31 and electric bath groove 32, and the motor-generator set 31 has anode and cathode, the electricity
Bath trough 32 can be connected to 5 bottom of the gas cylinder;The chemical plating component 4 includes filter 41 and chemical plating liquid bath 42, described
Filter 41 is set to the outlet end of the chemical plating liquid bath 42, and the outlet end of the chemical plating liquid bath 42 can be with the gas cylinder 5
Bottom is connected to, and the liquid feeding end of the chemical plating liquid bath 42 can be connected to the top of the gas cylinder 5.
When in use, gas cylinder 5 being mounted in suspension tooling 2, gas cylinder 5 is placed in plating slot 1, and gas cylinder 5 is in vertical, and
Gas cylinder 5 is not contacted with the bottom of plating slot 1, and gas cylinder 5 passes through suspension assembly and lifting appliance in this embodiment in vacant state
It connects to realize the hanging of gas cylinder 5.The hose of the outlet end of electric bath groove 32 is connect with the bottom of gas cylinder 5, it will by water pump
Electroplate liquid in electric bath groove 32 is pumped into gas cylinder 5, and the nickel stick 311 being connect with 31 anode of motor-generator set is being placed on gas cylinder 5
In, nickel stick 311 is located at 3/4 that the length in gas cylinder 5 is 5 length of entire gas cylinder, by the body of the cathode of motor-generator set 31 and gas cylinder 5
Connection, body are used as cathode, and the plating solution in gas cylinder 5 is used as anode, after a period of time is electroplated, passes through boom hoisting promotion and hang work
2 are filled, gas cylinder 5 is lifted to the top of plating slot 1, the electroplate liquid in gas cylinder 5 is discharged, electroplate liquid flow back into plating by hose
In liquid bath 32, then chemical plating component 4 connect with gas cylinder 5, then gas cylinder 5 is placed in plating slot 1, by water pump, makes chemistry
Plating solution is flowed into certain flow velocity from 5 bottom of gas cylinder, then is flowed out from the top of gas cylinder 5, and chemical plating fluid is in gas cylinder 5 and chemical plating
It is recycled between liquid bath 42, the filter 41 of outlet end is used for filtering both chemical plating solution.In the processing unit of the present embodiment, gas cylinder 5 is logical
It crosses suspension assembly to be suspended in plating slot 1, when replacing plating equipment, gas cylinder 5 need not be detached with suspension tooling 2, directly
Tooling 2 and gas cylinder 5 will be hung using lifting appliance to sling, it is easy to use, while the device structure is simple, and it is in the prior art
The plating of large size, chemical plating plant are compared, and production cost has been saved.
Embodiment 2:A kind of plating device reducing gas cylinder inner surface plating nickel-phosphorus alloy porosity, including plating slot 1, use
In suspension tooling 2, electroplated components 3 and the chemical plating component 4 of suspension gas cylinder 5, the suspension tooling 2 is set to the plating slot 1
Top, suspension assembly include top plate 21, the suspension arm 24 set on the top plate 21,22, two connecting rods 23 of bottom plate and two branch
Strut 27, the bottom plate 22 are connect with the one end of the connecting rod 23 far from the top plate 21, and the bottom plate 22 is equipped with fixed gas
Second mounting hole of bottle 5, the top plate 21 are equipped with the first mounting hole of fixed gas cylinder 5, and first mounting hole connects equipped with first
First 25, second mounting hole is equipped with the second connector 26, and first connector 25 is connect with 5 top of the gas cylinder, and described second
Connector 26 is connect with 5 bottom of the gas cylinder, and the plating slot 1 has the first cell wall 28 and the second cell wall 29 being oppositely arranged, institute
It states supporting rod 27 to be set up between first cell wall 28 and second cell wall 29, the electroplated components 3 include motor-generator set 31
With electric bath groove 32, the motor-generator set 31 has anode and cathode, in plating, anode connection and the nickel stick 311 of motor-generator set 31,
Nickel stick 311 is placed in gas cylinder 5, the cathode of motor-generator set 31 connect entire gas cylinder 5 with the outer wall of gas cylinder 5 and is used as cathode, gas cylinder 5
In plating solution as anode;The chemical plating component 4 includes filter 41 and chemical plating liquid bath 42, and the filter 41 is set to institute
The outlet end for stating chemical plating liquid bath 42, in chemical plating, bottom that the outlet end of the chemical plating liquid bath 42 passes through hose and gas cylinder 5
Portion is connected to, and the liquid feeding end of the chemical plating liquid bath 42 is connected to by hose with the top of the gas cylinder 5, in chemical plating liquid bath 42
Plating solution by water pump, 5 bottom of gas cylinder enters gas cylinder 5, from the discharge of the top of gas cylinder 5, flow back into chemical plating liquid bath 42, mistake
Filter 41 is for filtering plating solution.
When in use, the top of gas cylinder 5 is fixed on top plate 21, the bottom of gas cylinder 5 is fixed on bottom plate 22, led to
Hose is crossed, electric bath groove 32 is connect with the second connector 26, by lifting appliance, gas cylinder 5 is applied from applying to be put into above slot
In coating bath 1, when top plate 21 and the substantially equal top of plating slot 1, by two supporting rods 27 pass through connecting rod 23 and gas cylinder 5 it
Between gap, wherein two supporting rods 27 are located at the both sides of gas cylinder 5, and one end of supporting rod 27 is placed on the first cell wall 28
Top, the other end of supporting rod 27 is placed on the top of the second cell wall 29, and top plate 21 is placed on supporting rod 27, and two
Supporting rod 27 is located between two connecting rods 23 of same top plate 21, and connecting rod plays the role of stable gas cylinder 5, further defines support
Bar 27 makes supporting rod 27 between connecting rod and gas cylinder 5, when supporting gas cylinder 5, top plate 21 can be prevented sliding from supporting rod 27
It falls, as shown in the figure 3, gas cylinder 5 is suspended on supporting rod 27, in electroplating process, remains vertical state, when plating terminates
Afterwards, lifting appliance triggers suspension arm 24, is lifted up, and supporting rod 27 is taken out, and after installing the hose of chemical plating, is inciting somebody to action
Gas cylinder 5 is suspended on supporting rod 27.
In the present embodiment, can fixture block be set at the top of the first cell wall 28 and the second cell wall 29, is opened up on fixture block logical
Supporting rod 27 is first passed through through-hole, the gap between the bottom gas cylinder 5 and connecting rod 23 from top plate 21 is worn by hole when in use
It crosses, the through-hole being then passed through on the second cell wall 29, one end of supporting rod 27 is fixed in the through-hole of the first cell wall 28, and the other end is fixed
In the through-hole of the second cell wall 29, the position of supporting rod 27 is limited using through-hole, prevents supporting rod 27 along the first cell wall 28
Extending direction moves.
Embodiment 3:The method for handling 5 inner surface of gas cylinder using the plating device for implementing 1 or 2:
(a) it pre-processes, 5 ground inner surface of gas cylinder is cleaned up, then the top installation of gas cylinder 5 is hung in tooling 2, and will
Gas cylinder 5 is placed on vertically in the plating slot 1, and the hose of electric bath groove 32 is connected to the bottom of gas cylinder 5, by water pump to gas
It is passed through electroplate liquid in bottle 5, before being passed through electroplate liquid into gas cylinder 5, by heating galvanic couple by the electroplate liquid in electric bath groove 32
It is heated to 20 DEG C;Nickel stick 311 is placed into from the top of gas cylinder 5 in gas cylinder 5, by the anode of the motor-generator set 31 and the nickel
Stick 311 connects, and the cathode of motor-generator set 31 is connect with the body of gas cylinder 5, starts motor-generator set 31, is electroplated 2 minutes;Wherein, cathode
Current density be 5A/dm2, in electroplate liquid, a concentration of 320ml/L of a concentration of 200g/L of NiCl2, HCl, the PH of electroplate liquid
Value is 1.5.
(b) after being electroplated, the gas cylinder 5 is proposed into plating slot 1, the electroplate liquid in gas cylinder 5 is discharged, takes out nickel stick
311, the hose being connect with electric bath groove 32 is removed, is rinsed well 5 inner surface of gas cylinder with giant;By chemical plating liquid bath 42
The hose of outlet end is connected to 5 bottom of gas cylinder, and the hose of 42 liquid feeding end of chemical plating liquid bath is connected to the top of gas cylinder 5, opens
Water pump is passed through chemical plating fluid, cyclic chemical plating solution 1 hour into gas cylinder 5;In the cyclic chemical plating solution into gas cylinder 5, by adding
Chemical plating fluid in chemical plating liquid bath 42 is heated to 87 DEG C, and is maintained at 87 DEG C by thermocouple, in the chemical plating fluid nickel from
The pH value of a concentration of 4.5g/L of son, chemical plating fluid are 4.5.
(c) after chemical plating, chemical plating fluid is discharged, the inner surface of gas cylinder 5 is rinsed well, by 5 vertical placement of gas cylinder
On frame, the temperature of heating furnace is first increased to 180 DEG C, then entire frame is placed into heating furnace, is kept the temperature at 200 DEG C
It 2-3 hours, comes out of the stove air-cooled 30 minutes.
Embodiment 4:The method for handling 5 inner surface of gas cylinder using the device for implementing 1 or 2:
(a) it pre-processes, 5 ground inner surface of gas cylinder is cleaned up, then the top installation of gas cylinder 5 is hung in tooling 2, and will
Gas cylinder 5 is placed on vertically in the plating slot 1, and the hose of electric bath groove 32 is connected to the bottom of gas cylinder 5, by water pump to gas
It is passed through electroplate liquid in bottle 5, before being passed through electroplate liquid into gas cylinder 5, by heating galvanic couple by the electroplate liquid in electric bath groove 32
It is heated to 25 DEG C;Nickel stick 311 is placed into from the top of gas cylinder 5 in gas cylinder 5, by the anode of the motor-generator set 31 and the nickel
Stick 311 connects, and the cathode of motor-generator set 31 is connect with the body of gas cylinder 5, starts motor-generator set 31, is electroplated 2 minutes;Wherein, cathode
Current density be 6A/dm2, in electroplate liquid, a concentration of 300ml/L of a concentration of 220g/L of NiCl2, HCl, the PH of electroplate liquid
Value is 1.
(b) after being electroplated, the gas cylinder 5 is proposed into plating slot 1, the electroplate liquid in gas cylinder 5 is discharged, takes out nickel stick
311, the hose being connect with electric bath groove 32 is removed, is rinsed well 5 inner surface of gas cylinder with giant;By chemical plating liquid bath 42
The hose of outlet end is connected to 5 bottom of gas cylinder, and the hose of 42 liquid feeding end of chemical plating liquid bath is connected to the top of gas cylinder 5, opens
Water pump is passed through chemical plating fluid, cyclic chemical plating solution 1.3 hours into gas cylinder 5;In the cyclic chemical plating solution into gas cylinder 5, pass through
Galvanic couple is heated, the chemical plating fluid in chemical plating liquid bath 42 is heated to 90 DEG C, and be maintained at 90 DEG C, nickel in the chemical plating fluid
The pH value of a concentration of 4.2g/L of ion, chemical plating fluid are 4.7.
(c) after chemical plating, chemical plating fluid is discharged, the inner surface of gas cylinder 5 is rinsed well, by 5 vertical placement of gas cylinder
On frame, the temperature of heating furnace is first increased to 180 DEG C, then entire frame is placed into heating furnace, is kept the temperature at 210 DEG C
It 3 hours, comes out of the stove air-cooled 30 minutes.
Embodiment 5:The method for handling 5 inner surface of gas cylinder using the device for implementing 1 or 2:
(a) it pre-processes, 5 ground inner surface of gas cylinder is cleaned up, then the top installation of gas cylinder 5 is hung in tooling 2, and will
Gas cylinder 5 is placed on vertically in the plating slot 1, and the hose of electric bath groove 32 is connected to the bottom of gas cylinder 5, by water pump to gas
It is passed through electroplate liquid in bottle 5, before being passed through electroplate liquid into gas cylinder 5, by heating galvanic couple by the electroplate liquid in electric bath groove 32
It is heated to 30 DEG C;Nickel stick 311 is placed into from the top of gas cylinder 5 in gas cylinder 5, the length in 311 gas cylinder 5 of nickel stick is at least bottle
The anode of the motor-generator set 31 is connect by the 3/4 of body with the nickel stick 311, and the body of the cathode of motor-generator set 31 and gas cylinder 5 is connected
It connects, starts motor-generator set 31, be electroplated 2 minutes;Wherein, the current density of cathode is 5A/dm2, in electroplate liquid, NiCl2's is a concentration of
The pH value of a concentration of 300ml/L of 250g/L, HCl, electroplate liquid are 3.
(b) after being electroplated, the gas cylinder 5 is proposed into plating slot 1, the electroplate liquid in gas cylinder 5 is discharged, takes out nickel stick
311, the hose being connect with electric bath groove 32 is removed, is rinsed well 5 inner surface of gas cylinder with giant;By chemical plating liquid bath 42
The hose of outlet end is connected to 5 bottom of gas cylinder, and the hose of 42 liquid feeding end of chemical plating liquid bath is connected to the top of gas cylinder 5, opens
Water pump is passed through chemical plating fluid, cyclic chemical plating solution 1.5 hours into gas cylinder 5;In the cyclic chemical plating solution into gas cylinder 5, pass through
Galvanic couple is heated, the chemical plating fluid in chemical plating liquid bath 42 is heated to 87 DEG C, and be maintained at 93 DEG C, nickel in the chemical plating fluid
The pH value of a concentration of 4.2g/L of ion, chemical plating fluid are 4.5.
(c) after chemical plating, chemical plating fluid is discharged, the inner surface of gas cylinder 5 is rinsed well, by 5 vertical placement of gas cylinder
On frame, the temperature of heating furnace is first increased to 180 DEG C, then entire frame is placed into heating furnace, 2 are kept the temperature at 22 DEG C
Hour, it comes out of the stove air-cooled 30 minutes.
In the processing method of 5 inner surface of gas cylinder of the present invention, the temperature of electroplate liquid is kept again between 18-30 DEG C, can be
Under the premise of ensureing cathode efficiency, reduces the internal stress defect of electroplated layer, improve the stability of electroplated layer.In electroplating process
In, it is only necessary to the Ni-based layer of layer is plated in the inner surface of gas cylinder 5, higher current density is not necessarily to, by multiple reality
Demonstration is tested, when current density is more than 8A/dm2When, the electroplated layer of 5 inner surface of gas cylinder blacks, second-rate, the influence of electroplated layer
Subsequent chemical plating.The pH value of electroplate liquid controls between 0.5-3.0, and when pH value is less than 0.5, the current efficiency of cathode can be big
Big reduction, and when pH value be higher than 3.0 when, electroplated layer it is second-rate.In heat treatment process, at a temperature of 200-220 DEG C
The hydrogen penetrated into 5 matrix of gas cylinder and overlay coating can be removed, eliminate internal stress, the consistency that coating can be improved reduces hole
Gap improves hardness and binding force of cladding material.
Claims (8)
1. reducing the plating device of gas cylinder inner surface plating nickel-phosphorus alloy porosity, it is characterised in that:Including plating slot, for hanging
Suspension tooling, electroplated components and the chemical plating component of gas cylinder, the suspension tooling are set to the top of the plating slot;The plating
Component includes motor-generator set and electric bath groove, and the motor-generator set has anode and cathode, and the electric bath groove can be with the gas cylinder bottom
Portion is connected to;The chemical plating component includes filter and chemical plating liquid bath, and the filter is set to going out for the chemical plating liquid bath
The outlet end at liquid end, the chemical plating liquid bath can be connected to the bottom of the gas cylinder, and the liquid feeding end of the chemical plating liquid bath can be with
The top of the gas cylinder is connected to.
2. the plating device according to claim 1 for reducing gas cylinder inner surface plating nickel-phosphorus alloy porosity, it is characterised in that:
The suspension tooling includes top plate and bottom plate, connecting rod and the suspension arm set on the top plate, and the connecting rod is set to the top plate
A plate face far from the suspension arm, the bottom plate are connect with the one end of the connecting rod far from the top plate, and the top plate is set
There are the first mounting hole of the fixed gas cylinder, the bottom plate to be equipped with the second mounting hole of the fixed gas cylinder, first installation
Hole is equipped with the first connector, and second mounting hole is equipped with the second connector, is connect at the top of first connector and the gas cylinder, described
Second connector is connect with the gas cylinder bottom.
3. the plating device according to claim 2 for reducing gas cylinder inner surface plating nickel-phosphorus alloy porosity, it is characterised in that:
The suspension tooling further includes being used to support the supporting rod of the top plate, the plating slot have the first cell wall for being oppositely arranged and
Second cell wall, the bracing member are set between first cell wall and second cell wall.
4. the plating device according to claim 1 for reducing gas cylinder inner surface plating nickel-phosphorus alloy porosity, it is characterised in that:
The chemical plating liquid bath is equipped with the heating device for heating chemical plating solution.
5. a kind of method of reduction gas cylinder inner surface plating nickel-phosphorus alloy porosity using plating device described in claim 1, packet
Include following steps,
(a) gas cylinder is mounted in the suspension tooling, and gas cylinder is placed on vertically in the plating slot, by electric bath groove
Hose is connected to the bottom of gas cylinder, and electroplate liquid is passed through into gas cylinder by water pump;Nickel stick is placed into gas cylinder at the top of gas cylinder
In, the anode of the motor-generator set is connect with the nickel stick, the body of the cathode of motor-generator set and gas cylinder is connected, starts rectification
Machine is electroplated 2-3 minutes;
(b) after being electroplated, the gas cylinder is proposed into plating slot, the electroplate liquid in gas cylinder is discharged, takes out nickel stick, removed and electricity
The hose of bath trough connection, gas cylinder inner surface is rinsed well;The hose of chemical plating liquid bath outlet end is connected to gas cylinder bottom,
The hose of chemical plating liquid bath liquid feeding end is connected to the top of gas cylinder, chemical plating fluid, cyclic chemical plating solution 1- are passed through into gas cylinder
1.5 hour;
(c) after chemical plating, chemical plating fluid is discharged, the inner surface of gas cylinder is rinsed well, gas cylinder is placed into heating furnace,
2-3 hours are kept the temperature at 200-220 DEG C, is come out of the stove air-cooled 30 minutes.
6. the method according to claim 5 for reducing gas cylinder inner surface plating nickel-phosphorus alloy porosity, it is characterised in that:It is described
The ingredient of electroplate liquid is NiCl2And HCl, NiCl2A concentration of 200-250g/L, a concentration of 300-320ml/L of HCl, the electricity
The temperature of plating solution is 18-30 DEG C, and the pH value of the electroplate liquid is 0.5-3.0.
7. the method according to claim 5 for reducing gas cylinder inner surface plating nickel-phosphorus alloy porosity, it is characterised in that:It is described
Cathode-current density is 5-8A/dm2。
8. the method according to claim 5 for reducing gas cylinder inner surface plating nickel-phosphorus alloy porosity, it is characterised in that:It is described
Chemical plating fluid in nickel ion a concentration of 4.2-4.5g/L, the pH value of chemical plating fluid is 4.5-4.7, and the temperature of chemical plating fluid is
87-93℃。
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CN115058705A (en) * | 2022-05-05 | 2022-09-16 | 中国科学院金属研究所 | Device and method for chemically plating inner wall of aluminum alloy gas cylinder |
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