CN205275748U - Composite plating groove device - Google Patents

Abstract

The utility model discloses a composite plating groove device, including the coating bath, be equipped with the cavity in the coating bath, the both ends of coating bath are negative pole and positive pole respectively, the position that is close to the negative pole in the cavity is equipped with the filter screen, is equipped with the feed inlet on the bottom surface of the coating bath between negative pole and the filter screen, is connected with feed mechanism on the feed inlet, feed mechanism includes the air conduit with the feed inlet intercommunication, and air conduit's the other end is connected with the pneumatics pump, and air conduit passes the feed inlet and lays formation air stirred tubular along the edge of tank bottom, be equipped with on this air stirred tubular's the pipe wall along axial evenly distributed's gas pocket, the last position that is close to the feed inlet of air conduit is equipped with the automatic butterfly valve, and near being equipped with the connector on the air conduit pipe wall of pneumatics pump, the below of this connector is equipped with the holding vessel, and the opening of holding vessel communicates towards the connector and with air conduit, the below of holding vessel is equipped with the electronic scale, and the holding vessel is placed on the electronic scale, still be equipped with the protection casing around electronic scale and the holding vessel.

Description

A kind of composite plating slot device

Technical field

The utility model belongs to electroplating technology field, especially a kind of composite plating slot device.

Background technology

At present, during plating, coated metal or other insoluble materials do anode, and workpiece to be plated does negative electrode, and the positively charged ion of coated metal is reduced formation coating at workpiece surface to be plated. For getting rid of other cationic interference, and make coating evenly, firmly, electroplate liquid need to be done with containing the cationic solution of coated metal, to keep the cationic concentration of coated metal constant. The object of plating plates metal plating on base material, changes substrate surface character or size. Plating can strengthen the erosion resistance of metal, increases hardness, prevents abrasion, improve electroconductibility, slipperiness, thermotolerance and surface aesthetic, plating liquid also to be added other media some, but when the Media density to be added is less than water and is insoluble in water, just easily float over the surface of plating liquid, and it is difficult in plating to play a role, nor it is beneficial to the component content of detection plating liquid, affect electroplating quality, devise relative unit to solve an above-mentioned difficult problem.

Practical novel content

In order to overcome the deficiencies in the prior art, the utility model provides a kind of plating tank device overcoming the density medium less than air and being insoluble in the problem of plating liquid.

In order to realize above-mentioned purpose, the technical solution adopted in the utility model is: a kind of composite plating slot device, comprise coating bath, cavity it is provided with in coating bath, the two ends of coating bath are respectively negative electrode and anode, it is characterized in that: in described cavity, the position of close negative electrode is provided with filtering net, the bottom surface of the coating bath between negative electrode and filtering net is provided with opening for feed, opening for feed is connected with feed mechanism, described feed mechanism comprises the air line being connected with opening for feed, the other end of air line is connected with air pressure pump, air line is laid through opening for feed along the edge of bottom land and is formed air stirring pipe, the tube wall of this air stirring pipe is provided with equally distributed pore vertically, on described air line, the position of close opening for feed is provided with automatic butterfly valve, air line tube wall near air pressure pump is provided with Link Port, the lower section of this Link Port is provided with hold-up vessel, the opening of hold-up vessel is towards Link Port and is connected with air line, the lower section of described hold-up vessel is provided with electronic scale, hold-up vessel is placed on electronic scale, the surrounding of described electronic scale and hold-up vessel is also provided with shield cap, the height of shield cap is less than the height of Link Port to electronic scale bottom surface, this shield cap is provided with lid body, lid body comprises left cover body and right cover body, left cover body and right cover body are equipped with and the semicircle groove of Link Port periphery adaptation, the opening inwall of shield cap is provided with and forms the spacing projection coordinated with lid body, aspirating hole has been offered in the side of described shield cap, aspirating hole is connected with and the off-gas pump that shield cap inside is connected.

In said structure, if the medium less because of density adds between the opening of coating bath, the surface of plating liquid can be floated over and it is difficult to arrive each corner, the composition of the plating liquid just uneven electroplating effect not reaching regulation, the utility model utilizes air line up to carry from the bottom of coating bath by medium, medium is mingled with in atmosphere by wind-force drive blowout from the pore of air stirring pipe, because air stirring pipe is provided with some pores, air bubble is produced from multiple directions, irregular bubble makes plating liquid produce fluctuation, even if plating liquid movement gets up to reach the effect of stirring, medium can better be dissolved, and can plating liquid be stirred evenly, avoid affecting electroplating effect, so not only be conducive to the dissolving of medium, also medium is made can not to be leaked in air because not having the pipeline fettered in adition process, cause the waste of medium, not only affect environment, too increase production cost, the medium needed is loaded hold-up vessel, then by the opening alignment Link Port of hold-up vessel, because Media density is less than air, so under stationary state, medium can be floated in air line, restart air pressure pump, utilize wind pressure that medium is blowed to coating bath, but owing to Link Port and hold-up vessel are blow-by, so some medium can be revealed toward the outside of hold-up vessel, cause waste, so the effect of shield cap is exactly collect the medium revealed, the medium not entering air line is saved in shield cap, airtight space is formed because protection is covered with lid body, so after waiting galvanizer's work to terminate, start off-gas pump, medium in shield cap is collected again and carries out second stage employ, reduce electroplating cost, and electronic scale is arranged on the inside of shield cap, because the weight measurement of medium needs more accurate, so extraneous factor is bigger on the impact of its measuring result, it is arranged on and extraneous factor inside shield cap, just can be avoided the impact measured, improve weighing precision, improve electroplating quality, the effect of electronic scale is the additional proportion in order to accurate control agent, to reach the plating liquid effect of the best.

As further setting of the present utility model, described hold-up vessel comprises cylindrical tank, cylindrical tank extends towards the port of Link Port to centre draws close convex globoidal transitioning end outside formation, outer convex globoidal transitioning end is connected with cylinder open end, form indent arc-shaped transition between outer convex globoidal transitioning end and opening end to be connected, described Link Port extends to form and the coupling end of opening end adaptation towards hold-up vessel, form indent arc-shaped transition between coupling end with Link Port to be connected, coupling end is set on the periphery of opening end and forms running fit with opening end periphery, the end face of opening end and Link Port are flat together or lower than Link Port.

In said structure, it is all to reduce the obstruction of medium in uphill process that the outer convex globoidal transitioning end of hold-up vessel and outer convex globoidal transitioning end are connected setting with the indent arc-shaped transition of opening end, if because opening place is that right angle is arranged, so will there is medium stagnant area in turning, increase the difficulty of medium motion, increase the residual quantity of medium in hold-up vessel, opening end is embedded in coupling end, extend the overlap length of hold-up vessel and Link Port, this is the leakage in order to reduce medium, and coupling end is connected with Link Port radian transition, also it is the resistance in order to reduce medium motion, allow medium can enter air line smoothly, weigh because hold-up vessel is placed on electronic scale, so coupling end inwall and opening end outer wall can not to connecing, would not affect like this and weigh, but space again can not be too big, the too big effect just losing coupling end, and opening end can not height Link Port, can affect higher than the blast of the words air pressure pump of Link Port and weigh.

As further setting of the present utility model, described filtering net comprises filtering net body, the framework consistent with filtering net body profile, cavity is provided with the guide path being formed with framework and leading and coordinate with the junction of filtering net, sealing member it is provided with in guide path, filtering net body is fixed in framework, framework comprises the left frame and left frame that form grafting cooperation, left frame is provided with some equally distributed card blocks towards left frame end face, the hook that card block extends to form obliquely towards the end of left frame towards left frame, left frame is provided with and the card groove of card block adaptation towards the position corresponding with card block on the end face of left frame, inwall corresponding with hook on card groove is provided with and links up with adaptive extension hole, this extension hole is run through left frame and is connected card groove and air, left frame and left frame form removable formula and are sealed and matched.

In said structure, the effect of filtering net is the impurity in order to intercept negative electrode, when needs detect filtrate component, the filtrate that only need to extract anode is exactly the composition accurately analyzing filtrate, can not be disturbed by some unnecessary compositions, filtering net is through life-time service, filtering net body can remain a lot of impurity, affect filter effect, even may result in blockage, this just needs to change filtering net, filtering net forms removable formula with coating bath through guide path and coordinates, so easily taking out, the bottom surface of guide path is provided with sealing member, guarantee that the filtrate of negative electrode can not be leaked to anode by the space between framework and guide path, and framework is also that removable formula coordinates, filtering net body only need to be changed during replacing, left frame is that card connects and coordinates with left frame, when disassembly is desired, to link up with toward the extruding of card Block direction by extraneous instrument, hook can be skidded off from card groove, convenient and swift, card connects good sealing effect.

As further setting of the present utility model, described framework is positioned at the both sides outer wall above cavity opening and is provided with clamping hook, the connection block that this clamping hook comprises one end and framework outer wall connects admittedly, the other end connecting block extends to form clamping wall downwards, the end face of clamping wall is connected with right-angle prismatic cylinder, a wherein right-angle surface of this right-angle prismatic cylinder and clamping wall end face are to connecing, and the width of this right-angle surface is greater than the width of clamping wall end face, the outer wall of another right-angle surface and clamping wall is put down together, clamping chamber is formed between clamping hook and framework outer wall, the opening outer wall of described cavity is provided with and the flange clamping chamber adaptation, the periphery of this flange forms card with the inwall of clamping hook to connecing and connects and coordinate.

In said structure, filtering net is placed in filtrate, because filtrate has certain buoyancy, filtering net is easily caused by picking-up exists space between the bottom surface of framework and the bottom surface of coating bath, so the setting of clamping hook is exactly that clamping hook connects with flange card in order to maintain an equal level with buoyancy to filtering net downward power, when filtering net is taken out by needs, clamping wall is drawn to both sides make right-angle prismatic cylinder and flange disengage just desirable go out filtering net, structure is simple, it may also be useful to the life-span is long.

As further setting of the present utility model, four flank side surface cell walls of described cavity are hollow arrange formation cavity, nichrome wire it is equipped with in cavity, nichrome wire is towards the side of coating bath inwall and cavity contact internal walls, nichrome wire is towards the side of coating bath outer wall and cavity inwall running fit, nichrome wire radially becomes waviness to be distributed in cavity, the crest of nichrome wire and trough are hung on the peg being arranged on cavity inwall respectively, one end of peg is fixed on cavity towards on the side inwall of coating bath inwall, the other end faces upward or downward and extends to form positioning end, this positioning end forms spacing cooperation with nichrome wire.

In said structure, during plating, plating liquid is at different temperature, electroplating effect and electroplating time are all different, so just needing nichrome wire to heat when not completing plating at normal temperatures, the inwall of coating bath is close to by nichrome wire, it is make the better heat conduction of coating bath inwall to improve heating efficiency, nichrome wire away from the outer wall of coating bath, be in order to reduce heat radiation improve heat insulation effect, waviness distribution coating bath can be made to be heated evenly.

Adopting such scheme, can easily solve the problem that the little medium of density is insoluble in plating liquid, medium nil waste, and dissolved efficiency height, electroplating effect is good.

Below in conjunction with accompanying drawing, the utility model is further described.

Accompanying drawing explanation

Accompanying drawing 1 is the utility model specific embodiment schematic appearance;

Accompanying drawing 2 is the STRUCTURE DECOMPOSITION figure of the utility model specific embodiment shield cap;

Accompanying drawing 3 is the STRUCTURE DECOMPOSITION figure of the utility model specific embodiment left frame;

Accompanying drawing 4 is the STRUCTURE DECOMPOSITION figure of the utility model specific embodiment left frame;

Accompanying drawing 5 is the structure sectional view of the utility model specific embodiment coating bath.

Embodiment

Below by embodiment, the utility model is specifically described; only for the utility model is further described; can not being interpreted as the restriction to the utility model protection domain, the utility model can be made improvement and the adjustment of some non-intrinsically safes by the technician in this field according to the novel content of above-mentioned practicality.

Specific embodiment of the utility model is as Figure 1-5, a kind of Composite Hollow device, comprise coating bath 1, cavity 11 it is provided with in coating bath 1, the two ends of coating bath 1 are respectively negative electrode 12 and anode 13, it is provided with filtering net 14 near the position of negative electrode 12 in described cavity 11, the bottom surface of the coating bath 1 between negative electrode 12 and filtering net 14 is provided with opening for feed 15, opening for feed 15 is connected with feed mechanism 2, described feed mechanism 2 comprises the air line 21 being connected with opening for feed 15, the other end of air line 21 is connected with air pressure pump 22, air line 21 is laid through opening for feed 15 along the edge of bottom land and is formed air stirring pipe 211, the tube wall of this air stirring pipe 211 is provided with equally distributed pore 2111 vertically, on described air line 21, the position of close opening for feed 15 is provided with automatic butterfly valve 23, air line 21 tube wall near air pressure pump 22 is provided with Link Port 24, the lower section of this Link Port 24 is provided with hold-up vessel 25, the opening of hold-up vessel 25 is towards Link Port 24 and is connected with air line 21, the lower section of described hold-up vessel 25 is provided with electronic scale 26, hold-up vessel 25 is placed on electronic scale 26, described electronic scale 26 is also provided with shield cap 3 with the surrounding of hold-up vessel 25, the height of shield cap 3 is less than the height of Link Port 24 to electronic scale 26 bottom surface, this shield cap 3 is provided with lid body 31, lid body 31 comprises left cover body 311 and right cover body 312, left cover body 311 and right cover body 312 are equipped with and the semicircle groove 3111 of Link Port 24 periphery adaptation, the opening inwall of shield cap 3 is provided with and forms the spacing projection 32 coordinated with lid body 31, aspirating hole 33 has been offered in the side of described shield cap 3, aspirating hole 33 is connected with and the off-gas pump 34 that shield cap 3 inside is connected. if the medium less because of density adds between the opening of coating bath 1, the surface of plating liquid can be floated over and it is difficult to arrive each corner, the composition of the plating liquid just uneven electroplating effect not reaching regulation, the utility model utilizes air line 21 to allow medium up carry from the bottom of coating bath 1, so not only be conducive to the dissolving of medium, also medium is made can not to be leaked in air because not having the pipeline fettered in adition process, cause the waste of medium, not only affect environment, too increase production cost, the medium needed is loaded hold-up vessel 25, then by the opening alignment Link Port 24 of hold-up vessel 25, because Media density is less than air, so under stationary state, medium can be floated in air line 21, restart air pressure pump 22, utilize wind pressure that medium blows to coating bath 1, but owing to Link Port 24 and hold-up vessel 25 are blow-by, so some medium can be revealed toward the outside of hold-up vessel 25, cause waste, so the effect of shield cap 3 is exactly collect the medium revealed, the medium not entering air line 21 is saved in shield cap 3, because shield cap 3 has lid body 31 to form airtight space, so after waiting galvanizer's work to terminate, start off-gas pump 34, medium in shield cap 3 is collected again and carries out second stage employ, reduce electroplating cost, and electronic scale 26 is arranged on the inside of shield cap 3, because the weight measurement of medium needs more accurate, so extraneous factor is bigger on the impact of its measuring result, it is arranged on and extraneous factor inside shield cap 3, just can be avoided the impact measured, improve weighing precision, improve electroplating quality, the effect of electronic scale 26 is the additional proportion in order to accurate control agent, to reach the plating liquid effect of the best.

Above-mentioned hold-up vessel 25 comprises cylindrical tank 251, cylindrical tank 251 extends towards the port of Link Port 24 to centre draws close convex globoidal transitioning end 252 outside formation, outer convex globoidal transitioning end 252 is connected with cylinder open end 253, form indent arc-shaped transition between outer convex globoidal transitioning end 252 and opening end 253 to be connected, described Link Port 24 extends to form and the coupling end 254 of opening end 253 adaptation towards hold-up vessel 25, form indent arc-shaped transition between coupling end 254 with Link Port 24 to be connected, coupling end 254 is set on the periphery of opening end 253 and forms running fit with opening end 253 periphery, the end face of opening end 253 and Link Port 24 are flat together or lower than Link Port 24. it is all to reduce the obstruction of medium in uphill process that the outer convex globoidal transitioning end 252 of hold-up vessel 25 and outer convex globoidal transitioning end 252 are connected setting with the indent arc-shaped transition of opening end 253, if because opening place is that right angle is arranged, so will there is medium stagnant area in turning, increase the difficulty of medium motion, increase the residual quantity of medium in hold-up vessel 25, opening end 253 is embedded in coupling end 254, extend the overlap length of hold-up vessel 25 with Link Port 253, this is the leakage in order to reduce medium, and coupling end 254 is connected with Link Port 253 radian transition, also it is the resistance in order to reduce medium motion, allow medium can enter air line 21 smoothly, weigh because hold-up vessel 25 is placed on electronic scale 26, so coupling end 254 inwall and opening end 253 outer wall can not to connecing, would not affect like this and weigh, but space again can not be too big, the too big effect just losing coupling end 254, and opening end 253 can not height Link Port 24, can affect higher than the blast of the words air pressure pump 22 of Link Port 24 and weigh.

Above-mentioned filtering net 14 comprises filtering net body 141, the framework 142 consistent with filtering net body 141 profile, cavity 11 is provided with the guide path 111 being formed with framework 142 and leading and coordinate with the junction of filtering net 14, sealing member 112 it is provided with in guide path 111, filtering net body 141 is fixed in framework 142, framework 142 comprises the left frame 1422 and left frame 1423 that form grafting cooperation, left frame 1422 is provided with some equally distributed card blocks 1424 towards left frame 1423 end face, the hook 14241 that card block 1424 extends to form obliquely towards the end of left frame 1423 towards left frame 1422, left frame 1423 is provided with and the card groove 1425 of card block 1424 adaptation towards the position corresponding with card block 1424 on the end face of left frame 1422, inwall corresponding with linking up with 14241 on card groove 1425 is provided with and the extension hole 14251 linking up with 14241 adaptations, this extension hole 14251 is run through left frame 1423 and is connected card groove 1425 and air, left frame 1422 and left frame 1423 form removable formula and are sealed and matched. the effect of filtering net 14 is the impurity in order to intercept negative electrode 12, when needs detect filtrate component, the filtrate that only need to extract anode 13 is exactly the composition accurately analyzing filtrate, can not be disturbed by some unnecessary compositions, filtering net 14 is through life-time service, filtering net body 141 can remain a lot of impurity, affect filter effect, even may result in blockage, this just needs to change filtering net 14, filtering net 14 forms removable formula with coating bath 1 through guide path 111 and coordinates, so easily taking out, the bottom surface of guide path 111 is provided with sealing member 112, guarantee that the filtrate of negative electrode 12 can not be leaked to anode 14 by the space between framework 142 and guide path 111, and framework 142 is also that removable formula coordinates, filtering net body 141 only need to be changed during replacing, left frame 1422 coordinates for card connects with left frame 1423, when disassembly is desired, 14241 will be linked up with by extraneous instrument to extrude toward card block 1424 direction, hook 14241 can be skidded off from card groove 1425, convenient and swift, card connects good sealing effect.

Above-mentioned framework 142 is positioned at the both sides outer wall above cavity 11 opening and is provided with clamping hook 143, the connection block 1431 that this clamping hook 143 comprises one end and framework 142 outer wall connects admittedly, the other end connecting block 1431 extends to form clamping wall 1432 downwards, the end face of clamping wall 1432 is connected with right-angle prismatic cylinder 1433, a wherein right-angle surface of this right-angle prismatic cylinder 1433 and clamping wall 1432 end face are to connecing, and the width of this right-angle surface is greater than the width of clamping wall 1432 end face, the outer wall of another right-angle surface and clamping wall 1432 is put down together, clamping chamber 1434 is formed between clamping hook 143 and framework 142 outer wall, the opening outer wall of described cavity 11 is provided with and the flange 113 clamping chamber 1434 adaptation, the periphery of this flange 113 forms card with the inwall of clamping hook 143 to connecing and connects and coordinate. filtering net 14 is placed in filtrate, because filtrate has certain buoyancy, filtering net 14 is easily caused by picking-up exists space between the bottom surface of framework 142 and the bottom surface of coating bath 1, so the setting of clamping hook 143 is exactly to maintain an equal level with buoyancy to filtering net 14 1 downward power, clamping hook 143 connects with flange 113 card, when filtering net 14 is taken out by needs, clamping wall 1432 is drawn to both sides make right-angle prismatic cylinder 1433 and flange 113 disengage just desirable go out filtering net 14, structure is simple, it may also be useful to the life-span is long.

Four flank side surface cell walls of above-mentioned cavity 11 are that hollow setting forms cavity 114, nichrome wire 1141 it is equipped with in cavity 114, nichrome wire 1141 is towards the side of coating bath 1 inwall and cavity 114 contact internal walls, nichrome wire 1141 is towards the side of coating bath 1 outer wall and cavity 114 inwall running fit, nichrome wire 1141 radially becomes waviness to be distributed in cavity 114, the crest of nichrome wire 1141 and trough are hung on the peg 1142 being arranged on cavity 114 inwall respectively, one end of peg 1142 is fixed on cavity 114 towards on the side inwall of coating bath 1 inwall, the other end faces upward or downward and extends to form positioning end 1143, this positioning end 1143 forms spacing cooperation with nichrome wire 1141. during plating, plating liquid is at different temperature, electroplating effect and electroplating quality are all different, so just needing nichrome wire 1141 to heat when plating can not be completed at normal temperatures, the inwall of coating bath 1 is close to by nichrome wire 1141, is make the coating bath 1 better heat conduction of inwall to improve heating efficiency, and nichrome wire 1141 is away from the outer wall of coating bath 1, be in order to reduce heat radiation improve heat insulation effect, waviness distribution coating bath 1 can be made to be heated evenly.

Claims (5)

1. a composite plating slot device, comprise coating bath, cavity it is provided with in coating bath, the two ends of coating bath are respectively negative electrode and anode, it is characterized in that: in described cavity, the position of close negative electrode is provided with filtering net, the bottom surface of the coating bath between negative electrode and filtering net is provided with opening for feed, opening for feed is connected with feed mechanism, described feed mechanism comprises the air line being connected with opening for feed, the other end of air line is connected with air pressure pump, air line is laid through opening for feed along the edge of bottom land and is formed air stirring pipe, the tube wall of this air stirring pipe is provided with equally distributed pore vertically, on described air line, the position of close opening for feed is provided with automatic butterfly valve, air line tube wall near air pressure pump is provided with Link Port, the lower section of this Link Port is provided with hold-up vessel, the opening of hold-up vessel is towards Link Port and is connected with air line, the lower section of described hold-up vessel is provided with electronic scale, hold-up vessel is placed on electronic scale, the surrounding of described electronic scale and hold-up vessel is also provided with shield cap, the height of shield cap is less than the height of Link Port to electronic scale bottom surface, this shield cap is provided with lid body, lid body comprises left cover body and right cover body, left cover body and right cover body are equipped with and the semicircle groove of Link Port periphery adaptation, the opening inwall of shield cap is provided with and forms the spacing projection coordinated with lid body, aspirating hole has been offered in the side of described shield cap, aspirating hole is connected with and the off-gas pump that shield cap inside is connected.

2. a kind of composite plating slot device according to claim 1, it is characterized in that: described hold-up vessel comprises cylindrical tank, cylindrical tank extends towards the port of Link Port to centre draws close convex globoidal transitioning end outside formation, outer convex globoidal transitioning end is connected with cylinder open end, form indent arc-shaped transition between outer convex globoidal transitioning end and opening end to be connected, described Link Port extends to form and the coupling end of opening end adaptation towards hold-up vessel, form indent arc-shaped transition between coupling end with Link Port to be connected, coupling end is set on the periphery of opening end and forms running fit with opening end periphery, the end face of opening end and Link Port are flat together or lower than Link Port.

3. a kind of composite plating slot device according to claim 1, it is characterized in that: described filtering net comprises filtering net body, the framework consistent with filtering net body profile, cavity is provided with the guide path being formed with framework and leading and coordinate with the junction of filtering net, sealing member it is provided with in guide path, filtering net body is fixed in framework, framework comprises the left frame and left frame that form grafting cooperation, left frame is provided with some equally distributed card blocks towards left frame end face, the hook that card block extends to form obliquely towards the end of left frame towards left frame, left frame is provided with and the card groove of card block adaptation towards the position corresponding with card block on the end face of left frame, inwall corresponding with hook on card groove is provided with and links up with adaptive extension hole, this extension hole is run through left frame and is connected card groove and air, left frame and left frame form removable formula and are sealed and matched.

4. a kind of composite plating slot device according to claim 3, it is characterized in that: described framework is positioned at the both sides outer wall above cavity opening and is provided with clamping hook, the connection block that this clamping hook comprises one end and framework outer wall connects admittedly, the other end connecting block extends to form clamping wall downwards, the end face of clamping wall is connected with right-angle prismatic cylinder, a wherein right-angle surface of this right-angle prismatic cylinder and clamping wall end face are to connecing, and the width of this right-angle surface is greater than the width of clamping wall end face, the outer wall of another right-angle surface and clamping wall is put down together, clamping chamber is formed between clamping hook and framework outer wall, the opening outer wall of described cavity is provided with and the flange clamping chamber adaptation, the periphery of this flange forms card with the inwall of clamping hook to connecing and connects and coordinate.

5. a kind of composite plating slot device according to claim 1, it is characterized in that: four flank side surface cell walls of described cavity are hollow arrange formation cavity, nichrome wire it is equipped with in cavity, nichrome wire is towards the side of coating bath inwall and cavity contact internal walls, nichrome wire is towards the side of coating bath outer wall and cavity inwall running fit, nichrome wire radially becomes waviness to be distributed in cavity, the crest of nichrome wire and trough are hung on the peg being arranged on cavity inwall respectively, one end of peg is fixed on cavity towards on the side inwall of coating bath inwall, the other end faces upward or downward and extends to form positioning end, this positioning end forms spacing cooperation with nichrome wire.