CN105696060A - Electroplating hanging tool and electroplating method for thin and long type NdFeB magnets - Google Patents
Electroplating hanging tool and electroplating method for thin and long type NdFeB magnets Download PDFInfo
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- CN105696060A CN105696060A CN201610076914.5A CN201610076914A CN105696060A CN 105696060 A CN105696060 A CN 105696060A CN 201610076914 A CN201610076914 A CN 201610076914A CN 105696060 A CN105696060 A CN 105696060A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/06—Suspending or supporting devices for articles to be coated
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- 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
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- 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
- C25D3/38—Electroplating: Baths therefor from solutions of copper
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
- C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/16—Electroplating with layers of varying thickness
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/001—Magnets
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Abstract
The invention discloses an electroplating hanging tool and an electroplating method for thin and long type NdFeB magnets. The electroplating hanging tool comprises a hanging frame and at least one suspension gear arranged on the hanging frame, wherein the suspension gear comprises a suspension frame fixedly arranged on the hanging frame and a plurality of suspension bases mounted on the suspension frame; each suspension base comprises a base body and a stop dog used for limiting a thin and long type NdFeB magnet in the base body;, the base body is drawn in a spiral shape with a cylindrical inner hole by a signal stainless steel wire and the stop dog is fixedly arranged at the bottom opening part of the base body; and the diameter of the inner hole of the base body is 5-20mm larger than the width of the thin and long type NdFeB magnet, and the height of the base body is 10-15mm smaller than the length of the thin and long type NdFeB magnet. The electroplating hanging tool and the electroplating method have the advantages that the electroplating hanging tool can be used in both electroplating pretreatment and electroplating treatment processes; only through bouncing of the electroplating hanging tool, no hanging points are produced on thin and long type NdFeB magnets; and therefore, the electroplating qualified rate and electroplating efficiency of the thin and long type NdFeB magnets can be improved, and the workload of operators is reduced.
Description
Technical field
The present invention relates to the Hanging device for electro plating of a kind of slender type neodymium iron boron magnetic body, especially relate to Hanging device for electro plating and the electro-plating method thereof of a kind of slender type neodymium iron boron magnetic body。
Background technology
Neodymium iron boron magnetic body is widely used in the field such as electronics and motor due to its superior magnetic property。Wherein, being applied to the neodymium iron boron magnetic body of machine field, to be mainly length be 60～130mm, and width is 10～40mm and thickness is the neodymium iron boron magnetic body of 2～8mm, and such neodymium iron boron magnetic body is commonly called slender type neodymium iron boron magnetic body。
In order to improve the antiseptic property of slender type neodymium iron boron magnetic body, it usually needs it is carried out electroplating processes。Owing to slender type neodymium iron boron magnetic body specification is relatively big, rack plating process can only be adopted when electroplating processes。The Hanging device for electro plating of existing slender type neodymium iron boron magnetic body generally includes hanger and the multiple fixtures being arranged on hanger, each fixture includes clamping part and lower clamping part, when plating, slender type neodymium iron boron magnetic body is clamped on hanger by upper clamping part and lower clamping part。Owing to the Hanging device for electro plating of existing slender type neodymium iron boron magnetic body is clipping up and down, before plating in processing procedure, the contact position that slender type neodymium iron boron magnetic body clamps with upper clamping part and lower clamping part but cannot be processed to, and hanging point place can be caused protruding, affect size and outward appearance；For this, the electro-plating method of existing slender type neodymium iron boron magnetic body is cannot to be arranged on this hanger by slender type neodymium iron boron magnetic body to carry out pre-electroplating treatment, but first slender type neodymium iron boron magnetic body is loaded in mesh bag and carry out pre-electroplating treatment, then again slender type neodymium iron boron magnetic body is hung over and hanger is electroplated。The product treatment amount general control of every mesh bag is at about 60pcs, in processing procedure, slender type neodymium iron boron magnetic body mutually collides in mesh bag pulling back and forth before plating, owing to slender type neodymium iron boron magnetic body fragility is big, very easily causes brokenly angle, causing conforming product rate low, broken angle rate can about 8% according to statistics；It addition, in order to prevent the hanging point position of slender type neodymium iron boron magnetic body from without coating and producing big hanging point in electroplating process, it is necessary to manually product being carried out multi-shift, cause man efficiency low, workload is big。
In view of this, the Hanging device for electro plating designing a kind of slender type neodymium iron boron magnetic body is applied in pre-electroplating treatment and the electroplating processes process of slender type neodymium iron boron magnetic body, slender type neodymium iron boron magnetic body will not produce hanging point, for improving plating qualification rate and the electroplating efficiency of slender type neodymium iron boron magnetic body, the workload reducing operator is significant。
Summary of the invention
One of the technical problem to be solved is to provide the Hanging device for electro plating of a kind of slender type neodymium iron boron magnetic body, this hanger is applied in pre-electroplating treatment and the electroplating processes process of slender type neodymium iron boron magnetic body, slender type neodymium iron boron magnetic body does not produce hanging point, thus can improve plating qualification rate and the electroplating efficiency of slender type neodymium iron boron magnetic body, reduce the workload of operator。
This invention address that the technical scheme that one of above-mentioned technical problem adopts is: the Hanging device for electro plating of a kind of slender type neodymium iron boron magnetic body, including hanger and at least one suspension gear being arranged on described hanger, described suspension gear includes the suspension being fixedly installed on described hanger and the multiple hanger bracket being arranged on described suspension, described hanger bracket includes pedestal and the block for being limited in described pedestal by slender type neodymium iron boron magnetic body, described pedestal is pulled into, by single stainless steel silk, the helical form that endoporus is cylinder, described block is fixedly installed on the bottom opening place of described pedestal, diameter of bore 5～the 20mm bigger than the width of described slender type neodymium iron boron magnetic body of described pedestal, little 10～the 15mm of length of the slender type neodymium iron boron magnetic body described in the aspect ratio of described pedestal。
Described hanger includes two spaced montants and two hooks, two hook one_to_one corresponding are arranged on two described montant tops, described suspension includes two spaced cross bars, described with the two respectively montant in the two ends of two described cross bars is fixing to be connected, between two described cross bars and respectively described with two cross bar of pedestal in each described suspension gear is fixing to be connected, and the interior axially bored line of described pedestal and the angle of described montant are 30～60 degree。This hanging tool structure is simple, less costly, and can improve the convenience of the charging of slender type neodymium iron boron magnetic body and discharging, improves the efficiency of the charging of slender type neodymium iron boron magnetic body and discharging。
Compared with prior art, the Hanging device for electro plating advantage of the present invention is in that the suspension that suspension gear includes being fixedly installed on hanger and the multiple hanger bracket being arranged on suspension, hanger bracket includes pedestal and the block for being limited in pedestal by slender type neodymium iron boron magnetic body, pedestal is pulled into, by single stainless steel silk, the helical form that endoporus is cylinder, block is fixedly installed on the bottom opening place of pedestal, diameter of bore 5～the 20mm bigger than the width of slender type neodymium iron boron magnetic body of pedestal, little 10～the 15mm of length of the aspect ratio slender type neodymium iron boron magnetic body of pedestal, process before plating and in electroplating processes process, only need to make Hanging device for electro plating bob, slender type neodymium iron boron magnetic body can be driven to be present internal beating, thus can ensure that the surface of slender type neodymium iron boron magnetic body is all processed to and does not produce hanging point, thus improve plating qualification rate and the electroplating efficiency of slender type neodymium iron boron magnetic body, reduce the workload of operator。
The two of the technical problem to be solved are to provide the electro-plating method of a kind of slender type neodymium iron boron magnetic body, this electro-plating method adopt hanger carry out pre-electroplating treatment and electroplating processes, slender type neodymium iron boron magnetic body will not produce hanging point, thus can improve plating qualification rate and the electroplating efficiency of slender type neodymium iron boron magnetic body, reduce the workload of operator。
This invention address that the technical scheme that the two of above-mentioned technical problem adopt is: the electro-plating method of a kind of slender type neodymium iron boron magnetic body, comprise the following steps:
1. slender type neodymium iron boron magnetic body is loaded in Hanging device for electro plating, described Hanging device for electro plating includes hanger and at least one suspension gear being arranged on described hanger, described suspension gear includes the suspension being fixedly installed on described hanger and the multiple hanger bracket being arranged on described suspension, described hanger bracket includes pedestal and the block for being limited in described pedestal by slender type neodymium iron boron magnetic body, described pedestal is pulled into, by single stainless steel silk, the helical form that endoporus is cylinder, described block is fixedly installed on the bottom opening place of described pedestal, diameter of bore 5～the 20mm bigger than the width of described slender type neodymium iron boron magnetic body of described pedestal, little 10～the 15mm of length of the slender type neodymium iron boron magnetic body described in the aspect ratio of described pedestal, the length direction of described slender type neodymium iron boron magnetic body keeps consistent with the short transverse of described pedestal and inserts in described pedestal；
2. slender type neodymium iron boron magnetic body is carried out pre-electroplating treatment: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body and be sequentially placed in degreasing tank to carry out in oil removal treatment, rust cleaning groove and carry out carrying out in processing of rust removing and activated bath activation processing, oil removal treatment, processing of rust removing and activated process make described Hanging device for electro plating bob；
3. slender type neodymium iron boron magnetic body is carried out first time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body put into the first electroplating pool slender type neodymium iron boron magnetic body is carried out electronickelling first process, thickness of coating is 2～10 μm；
4. slender type neodymium iron boron magnetic body is carried out second time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body and put into the second electroplating pool slender type neodymium iron boron magnetic body is carried out electro-coppering process, thickness of coating is 2～10 μm；
5. slender type neodymium iron boron magnetic body is carried out third time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body put into the 3rd electroplating pool slender type neodymium iron boron magnetic body is carried out electronickelling again process, thickness of coating is 3～15 μm。
Described hanger includes two spaced montants and two hooks, two hook one_to_one corresponding are arranged on two described montant tops, described suspension includes two spaced cross bars, described with the two respectively montant in the two ends of two described cross bars is fixing to be connected, between two described cross bars and respectively described with two cross bar of pedestal in each described suspension gear is fixing to be connected, and the interior axially bored line of described pedestal and the angle of described montant are 30～60 degree。This hanging tool structure is simple, less costly, and can improve the convenience of the charging of slender type neodymium iron boron magnetic body and discharging, improves the efficiency of the charging of slender type neodymium iron boron magnetic body and discharging。
The electroplating solution used in described first time electroplating processes process is the first nickel sulfate solution, the first described nickel sulfate solution is mixed by nickel sulfate, Nickel dichloride., boric acid and water, wherein the concentration of nickel sulfate is 200～400g/L, the concentration of Nickel dichloride. is 20～70g/L, the concentration of boric acid is 20～70g/L, the PH of the first described nickel sulfate solution is 3.5～5.0, and temperature is 40～60 DEG C。The method carries out first time electroplating processes by the first nickel sulfate solution, forms pre-nickel plating at slender type neodymium iron boron magnetic body, it is possible to make, between the copper coating of slender type neodymium iron boron magnetic body and pre-nickel plating and second time electroplating processes formation, there is good adhesion。
The electroplating solution used in described second time electroplating processes process is copper pyrophosphate solution, described copper pyrophosphate solution is mixed by potassium pyrophosphate, Copper pyrophosphate. and water, wherein the concentration of potassium pyrophosphate is 200～400g/L, the concentration of Copper pyrophosphate. is 20～70g/L, the PH of described copper pyrophosphate solution is 7.5～9.0, and temperature is 30～50 DEG C。The copper pyrophosphate solution adopted in the method as the electroplating solution of second time electroplating processes, composition is simple, bath stability, conductivity are high, covering power and covering power good, and its coating crystallization is careful, and the decay resistance improving coating is had good effect。
The electroplating solution used in described third time electroplating processes processing procedure is the second nickel sulfate solution, the second described nickel sulfate solution is mixed by nickel sulfate, Nickel dichloride., boric acid and water, wherein the concentration of nickel sulfate is 150～350g/L, the concentration of Nickel dichloride. is 20～70g/L, the concentration of boric acid is 20～70g/L, the PH of the second described nickel sulfate solution is 3.5～5.0, and temperature is 40～60 DEG C。The method can so that the coating obtained has glossiness outward appearance and hardness height。
Compared with prior art, the advantage of the electro-plating method of the present invention is in that process before plating and all adopt Hanging device for electro plating to hang slender type neodymium iron boron magnetic body in electroplating processes process, Hanging device for electro plating includes hanger and at least one suspension gear being arranged on hanger, suspension gear includes the suspension being fixedly installed on hanger and the multiple hanger bracket being arranged on suspension, hanger bracket includes pedestal and the block for being limited in pedestal by slender type neodymium iron boron magnetic body, pedestal is pulled into, by single stainless steel silk, the helical form that endoporus is cylinder, block is fixedly installed on the bottom opening place of pedestal, diameter of bore 5～the 20mm bigger than the width of slender type neodymium iron boron magnetic body of pedestal, little 10～the 15mm of length of the aspect ratio slender type neodymium iron boron magnetic body of pedestal, process before plating and in electroplating processes process, only need to make Hanging device for electro plating bob, slender type neodymium iron boron magnetic body can be driven to be present internal beating, thus can ensure that the surface of slender type neodymium iron boron magnetic body is all processed to and does not produce hanging point, thus improve plating qualification rate and the electroplating efficiency of slender type neodymium iron boron magnetic body, reduce the workload of operator。
Accompanying drawing explanation
Fig. 1 is the front view of the Hanging device for electro plating of the present invention；
Fig. 2 is the axonometric chart of the Hanging device for electro plating of the present invention。
Detailed description of the invention
The invention discloses the Hanging device for electro plating of a kind of slender type neodymium iron boron magnetic body, below in conjunction with accompanying drawing embodiment, the Hanging device for electro plating of the present invention is described in further detail。
Embodiment one: as shown in the figure, a kind of Hanging device for electro plating of slender type neodymium iron boron magnetic body, including hanger and at least one suspension gear being arranged on hanger, suspension gear includes the suspension being fixedly installed on hanger and the multiple hanger bracket being arranged on suspension, hanger bracket includes pedestal 1 and the block for being limited in pedestal 1 by slender type neodymium iron boron magnetic body, pedestal 1 is pulled into, by single stainless steel silk, the helical form that endoporus is cylinder, block is fixedly installed on the bottom opening place of pedestal 1, the diameter of bore 5mm bigger than the width of slender type neodymium iron boron magnetic body of pedestal 1, the little 10mm of length of the aspect ratio slender type neodymium iron boron magnetic body of pedestal 1。
In the present embodiment, hanger includes two spaced montants 2 and two hooks 3, two hook 3 one_to_one corresponding are arranged on two montant 2 tops, suspension includes two spaced cross bars 4, the two ends of two cross bars 4 are fixing with two montants 2 respectively to be connected, pedestal 1 in each suspension gear is between two cross bars 4 and respectively fixing with two cross bars 4 to be connected, and the interior axially bored line of pedestal 1 and the angle of montant 2 are 60 degree。
Embodiment two: as shown in the figure, a kind of Hanging device for electro plating of slender type neodymium iron boron magnetic body, including hanger and at least one suspension gear being arranged on hanger, suspension gear includes the suspension being fixedly installed on hanger and the multiple hanger bracket being arranged on suspension, hanger bracket includes pedestal 1 and the block for being limited in pedestal 1 by slender type neodymium iron boron magnetic body, pedestal 1 is pulled into, by single stainless steel silk, the helical form that endoporus is cylinder, block is fixedly installed on the bottom opening place of pedestal 1, the diameter of bore 20mm bigger than the width of slender type neodymium iron boron magnetic body of pedestal 1, the little 15mm of length of the aspect ratio slender type neodymium iron boron magnetic body of pedestal 1。
In the present embodiment, hanger includes two spaced montants 2 and two hooks 3, two hook 3 one_to_one corresponding are arranged on two montant 2 tops, suspension includes two spaced cross bars 4, the two ends of two cross bars 4 are fixing with two montants 2 respectively to be connected, pedestal 1 in each suspension gear is between two cross bars 4 and respectively fixing with two cross bars 4 to be connected, and the interior axially bored line of pedestal 1 and the angle of montant 2 are 30 degree。
The invention also discloses the electro-plating method of a kind of slender type neodymium iron boron magnetic body, below in conjunction with accompanying drawing embodiment, the electro-plating method of the present invention is described in further detail。
Embodiment one: as it can be seen, the electro-plating method of a kind of slender type neodymium iron boron magnetic body, comprise the following steps:
1. slender type neodymium iron boron magnetic body is loaded in Hanging device for electro plating, Hanging device for electro plating includes hanger and at least one suspension gear being arranged on hanger, suspension gear includes the suspension being fixedly installed on hanger and the multiple hanger bracket being arranged on suspension, hanger bracket includes pedestal 1 and the block for being limited in pedestal 1 by slender type neodymium iron boron magnetic body, pedestal 1 is pulled into, by single stainless steel silk, the helical form that endoporus is cylinder, block is fixedly installed on the bottom opening place of pedestal 1, the length direction of slender type neodymium iron boron magnetic body keeps with the short transverse of pedestal 1 in consistent insertion pedestal 1；Pedestal 1 is highly 65mm, and diameter of bore is 20mm, and the length of slender type neodymium iron boron magnetic body is 80mm, and width is 13mm, and thickness is 5mm；
2. slender type neodymium iron boron magnetic body is carried out pre-electroplating treatment: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body and be sequentially placed in degreasing tank to carry out in oil removal treatment, rust cleaning groove and carry out carrying out in processing of rust removing and activated bath activation processing, oil removal treatment, processing of rust removing and activated process make Hanging device for electro plating bob；
3. slender type neodymium iron boron magnetic body is carried out first time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body put into the first electroplating pool slender type neodymium iron boron magnetic body is carried out electronickelling first process, thickness of coating is 5 μm；
4. slender type neodymium iron boron magnetic body is carried out second time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body and put into the second electroplating pool slender type neodymium iron boron magnetic body is carried out electro-coppering process, thickness of coating is 10 μm；
5. slender type neodymium iron boron magnetic body is carried out third time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body put into the 3rd electroplating pool slender type neodymium iron boron magnetic body is carried out electronickelling again process, thickness of coating is 8 μm。
In the present embodiment, hanger includes two spaced montants 2 and two hooks 3, two hook 3 one_to_one corresponding are arranged on two montant 2 tops, suspension includes two spaced cross bars 4, the two ends of two cross bars 4 are fixing with two montants 2 respectively to be connected, pedestal 1 in each suspension gear is between two cross bars 4 and respectively fixing with two cross bars 4 to be connected, and the interior axially bored line of pedestal 1 and the angle of montant 2 are 60 degree。
In the present embodiment, the electroplating solution used in first time electroplating processes process is the first nickel sulfate solution, first nickel sulfate solution is mixed by nickel sulfate, Nickel dichloride., boric acid and water, wherein the concentration of nickel sulfate is 320g/L, the concentration of Nickel dichloride. is 30g/L, the concentration of boric acid is 40g/L, and the PH of the first nickel sulfate solution is 4.6, and temperature is 40 DEG C。
In the present embodiment, the electroplating solution used in second time electroplating processes process is copper pyrophosphate solution, copper pyrophosphate solution is mixed by potassium pyrophosphate, Copper pyrophosphate. and water, wherein the concentration of potassium pyrophosphate is 200g/L, the concentration of Copper pyrophosphate. is 30g/L, the PH of copper pyrophosphate solution is 7.5, and temperature is 40 DEG C。
In the present embodiment, the electroplating solution used in third time electroplating processes processing procedure is the second nickel sulfate solution, second nickel sulfate solution is mixed by nickel sulfate, Nickel dichloride., boric acid and water, wherein the concentration of nickel sulfate is 250g/L, the concentration of Nickel dichloride. is 35g/L, the concentration of boric acid is 65g/L, and the PH of the second nickel sulfate solution is 3.6, and temperature is 50 DEG C。
Slender type neodymium iron boron magnetic body after being processed by the electro-plating method adopting the present embodiment carries out outward appearance detection under 3 times of magnifieres, and product is without plating leakage, oxide etch phenomenon, and first-time qualification rate reaches 98.5%。
Embodiment two: as it can be seen, the electro-plating method of a kind of slender type neodymium iron boron magnetic body, comprise the following steps:
1. slender type neodymium iron boron magnetic body is loaded in Hanging device for electro plating, Hanging device for electro plating includes hanger and at least one suspension gear being arranged on hanger, suspension gear includes the suspension being fixedly installed on hanger and the multiple hanger bracket being arranged on suspension, hanger bracket includes pedestal 1 and the block for being limited in pedestal 1 by slender type neodymium iron boron magnetic body, pedestal 1 is pulled into, by single stainless steel silk, the helical form that endoporus is cylinder, block is fixedly installed on the bottom opening place of pedestal 1, the length direction of slender type neodymium iron boron magnetic body keeps with the short transverse of pedestal 1 in consistent insertion pedestal 1；Pedestal 1 is highly 65mm, and diameter of bore is 20mm, and the length of slender type neodymium iron boron magnetic body is 80mm, and width is 13mm, and thickness is 5mm；
2. slender type neodymium iron boron magnetic body is carried out pre-electroplating treatment: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body and be sequentially placed in degreasing tank to carry out in oil removal treatment, rust cleaning groove and carry out carrying out in processing of rust removing and activated bath activation processing, oil removal treatment, processing of rust removing and activated process make Hanging device for electro plating bob；
3. slender type neodymium iron boron magnetic body is carried out first time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body put into the first electroplating pool slender type neodymium iron boron magnetic body is carried out electronickelling first process, thickness of coating is 2 μm；
4. slender type neodymium iron boron magnetic body is carried out second time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body and put into the second electroplating pool slender type neodymium iron boron magnetic body is carried out electro-coppering process, thickness of coating is 2 μm；
5. slender type neodymium iron boron magnetic body is carried out third time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body put into the 3rd electroplating pool slender type neodymium iron boron magnetic body is carried out electronickelling again process, thickness of coating is 15 μm。
In the present embodiment, hanger includes two spaced montants 2 and two hooks 3, two hook 3 one_to_one corresponding are arranged on two montant 2 tops, suspension includes two spaced cross bars 4, the two ends of two cross bars 4 are fixing with two montants 2 respectively to be connected, pedestal 1 in each suspension gear is between two cross bars 4 and respectively fixing with two cross bars 4 to be connected, and the interior axially bored line of pedestal 1 and the angle of montant 2 are 30 degree。
In the present embodiment, the electroplating solution used in first time electroplating processes process is the first nickel sulfate solution, first nickel sulfate solution is mixed by nickel sulfate, Nickel dichloride., boric acid and water, wherein the concentration of nickel sulfate is 200g/L, the concentration of Nickel dichloride. is 20g/L, the concentration of boric acid is 20g/L, and the PH of the first nickel sulfate solution is 3.5, and temperature is 40 DEG C。
In the present embodiment, the electroplating solution used in second time electroplating processes process is copper pyrophosphate solution, copper pyrophosphate solution is mixed by potassium pyrophosphate, Copper pyrophosphate. and water, wherein the concentration of potassium pyrophosphate is 200g/L, the concentration of Copper pyrophosphate. is 20g/L, the PH of copper pyrophosphate solution is 7.5, and temperature is 30 DEG C。
In the present embodiment, the electroplating solution used in third time electroplating processes processing procedure is the second nickel sulfate solution, second nickel sulfate solution is mixed by nickel sulfate, Nickel dichloride., boric acid and water, wherein the concentration of nickel sulfate is 150g/L, the concentration of Nickel dichloride. is 20g/L, the concentration of boric acid is 20g/L, and the PH of the second nickel sulfate solution is 3.5, and temperature is 40 DEG C。
Embodiment three: as it can be seen, the electro-plating method of a kind of slender type neodymium iron boron magnetic body, comprise the following steps:
1. slender type neodymium iron boron magnetic body is loaded in Hanging device for electro plating, Hanging device for electro plating includes hanger and at least one suspension gear being arranged on hanger, suspension gear includes the suspension being fixedly installed on hanger and the multiple hanger bracket being arranged on suspension, hanger bracket includes pedestal 1 and the block for being limited in pedestal 1 by slender type neodymium iron boron magnetic body, pedestal 1 is pulled into, by single stainless steel silk, the helical form that endoporus is cylinder, block is fixedly installed on the bottom opening place of pedestal 1, the length direction of slender type neodymium iron boron magnetic body keeps with the short transverse of pedestal 1 in consistent insertion pedestal 1；Pedestal 1 is highly 65mm, and diameter of bore is 20mm, and the length of slender type neodymium iron boron magnetic body is 80mm, and width is 13mm, and thickness is 5mm；
2. slender type neodymium iron boron magnetic body is carried out pre-electroplating treatment: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body and be sequentially placed in degreasing tank to carry out in oil removal treatment, rust cleaning groove and carry out carrying out in processing of rust removing and activated bath activation processing, oil removal treatment, processing of rust removing and activated process make Hanging device for electro plating bob；
3. slender type neodymium iron boron magnetic body is carried out first time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body put into the first electroplating pool slender type neodymium iron boron magnetic body is carried out electronickelling first process, thickness of coating is 10 μm；
4. slender type neodymium iron boron magnetic body is carried out second time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body and put into the second electroplating pool slender type neodymium iron boron magnetic body is carried out electro-coppering process, thickness of coating is 10 μm；
5. slender type neodymium iron boron magnetic body is carried out third time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body put into the 3rd electroplating pool slender type neodymium iron boron magnetic body is carried out electronickelling again process, thickness of coating is 3 μm。
In the present embodiment, hanger includes two spaced montants 2 and two hooks 3, two hook 3 one_to_one corresponding are arranged on two montant 2 tops, suspension includes two spaced cross bars 4, the two ends of two cross bars 4 are fixing with two montants 2 respectively to be connected, pedestal 1 in each suspension gear is between two cross bars 4 and respectively fixing with two cross bars 4 to be connected, and the interior axially bored line of pedestal 1 and the angle of montant 2 are 60 degree。
In the present embodiment, the electroplating solution used in first time electroplating processes process is the first nickel sulfate solution, first nickel sulfate solution is mixed by nickel sulfate, Nickel dichloride., boric acid and water, wherein the concentration of nickel sulfate is 400g/L, the concentration of Nickel dichloride. is 70g/L, the concentration of boric acid is 70g/L, and the PH of the first nickel sulfate solution is 5.0, and temperature is 60 DEG C。
In the present embodiment, the electroplating solution used in second time electroplating processes process is copper pyrophosphate solution, copper pyrophosphate solution is mixed by potassium pyrophosphate, Copper pyrophosphate. and water, wherein the concentration of potassium pyrophosphate is 400g/L, the concentration of Copper pyrophosphate. is 70g/L, the PH of copper pyrophosphate solution is 9.0, and temperature is 50 DEG C。
In the present embodiment, the electroplating solution used in third time electroplating processes processing procedure is the second nickel sulfate solution, second nickel sulfate solution is mixed by nickel sulfate, Nickel dichloride., boric acid and water, wherein the concentration of nickel sulfate is 350g/L, the concentration of Nickel dichloride. is 70g/L, the concentration of boric acid is 70g/L, and the PH of the second nickel sulfate solution is 5.0, and temperature is 60 DEG C。
Claims (7)
1. the Hanging device for electro plating of a slender type neodymium iron boron magnetic body, including hanger and at least one suspension gear being arranged on described hanger, it is characterized in that the suspension that described suspension gear includes being fixedly installed on described hanger and the multiple hanger bracket being arranged on described suspension, described hanger bracket includes pedestal and the block for being limited in described pedestal by slender type neodymium iron boron magnetic body, described pedestal is pulled into, by single stainless steel silk, the helical form that endoporus is cylinder, described block is fixedly installed on the bottom opening place of described pedestal, diameter of bore 5～the 20mm bigger than the width of described slender type neodymium iron boron magnetic body of described pedestal, little 10～the 15mm of length of the slender type neodymium iron boron magnetic body described in the aspect ratio of described pedestal。
2. the Hanging device for electro plating of a kind of slender type neodymium iron boron magnetic body according to claim 1, it is characterized in that described hanger includes two spaced montants and two hooks, two hook one_to_one corresponding are arranged on two described montant tops, described suspension includes two spaced cross bars, described with the two respectively montant in the two ends of two described cross bars is fixing to be connected, between two described cross bars and respectively described with two cross bar of pedestal in each described suspension gear is fixing to be connected, the interior axially bored line of described pedestal and the angle of described montant are 30～60 degree。
3. the electro-plating method of a slender type neodymium iron boron magnetic body, it is characterised in that comprise the following steps:
1. slender type neodymium iron boron magnetic body is loaded in Hanging device for electro plating, described Hanging device for electro plating includes hanger and at least one suspension gear being arranged on described hanger, described suspension gear includes the suspension being fixedly installed on described hanger and the multiple hanger bracket being arranged on described suspension, described hanger bracket includes pedestal and the block for being limited in described pedestal by slender type neodymium iron boron magnetic body, described pedestal is pulled into, by single stainless steel silk, the helical form that endoporus is cylinder, described block is fixedly installed on the bottom opening place of described pedestal, diameter of bore 5～the 20mm bigger than the width of described slender type neodymium iron boron magnetic body of described pedestal, little 10～the 15mm of length of the slender type neodymium iron boron magnetic body described in the aspect ratio of described pedestal, the length direction of described slender type neodymium iron boron magnetic body keeps consistent with the short transverse of described pedestal and inserts in described pedestal；
2. slender type neodymium iron boron magnetic body is carried out pre-electroplating treatment: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body and be sequentially placed in degreasing tank to carry out in oil removal treatment, rust cleaning groove and carry out carrying out in processing of rust removing and activated bath activation processing, oil removal treatment, processing of rust removing and activated process make described Hanging device for electro plating bob；
3. slender type neodymium iron boron magnetic body is carried out first time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body put into the first electroplating pool slender type neodymium iron boron magnetic body is carried out electronickelling first process, thickness of coating is 2～10 μm；
4. slender type neodymium iron boron magnetic body is carried out second time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body and put into the second electroplating pool slender type neodymium iron boron magnetic body is carried out electro-coppering process, thickness of coating is 2～10 μm；
5. slender type neodymium iron boron magnetic body is carried out third time electroplating processes: will be equipped with the Hanging device for electro plating of slender type neodymium iron boron magnetic body put into the 3rd electroplating pool slender type neodymium iron boron magnetic body is carried out electronickelling again process, thickness of coating is 3～15 μm。
4. the electro-plating method of a kind of slender type neodymium iron boron magnetic body according to claim 3, it is characterized in that described hanger includes two spaced montants and two hooks, two hook one_to_one corresponding are arranged on two described montant tops, described suspension includes two spaced cross bars, described with the two respectively montant in the two ends of two described cross bars is fixing to be connected, between two described cross bars and respectively described with two cross bar of pedestal in each described suspension gear is fixing to be connected, the interior axially bored line of described pedestal and the angle of described montant are 30～60 degree。
5. the electro-plating method of a kind of slender type neodymium iron boron magnetic body according to claim 3, it is characterized in that the electroplating solution used in described first time electroplating processes process is the first nickel sulfate solution, the first described nickel sulfate solution is mixed by nickel sulfate, Nickel dichloride., boric acid and water, wherein the concentration of nickel sulfate is 200～400g/L, the concentration of Nickel dichloride. is 20～70g/L, the concentration of boric acid is 20～70g/L, and the PH of the first described nickel sulfate solution is 3.5～5.0, and temperature is 40～60 DEG C。
6. the electro-plating method of a kind of slender type neodymium iron boron magnetic body according to claim 3, it is characterized in that the electroplating solution used in described second time electroplating processes process is copper pyrophosphate solution, described copper pyrophosphate solution is mixed by potassium pyrophosphate, Copper pyrophosphate. and water, wherein the concentration of potassium pyrophosphate is 200～400g/L, the concentration of Copper pyrophosphate. is 20～70g/L, the PH of described copper pyrophosphate solution is 7.5～9.0, and temperature is 30～50 DEG C。
7. the electro-plating method of a kind of slender type neodymium iron boron magnetic body according to claim 3, it is characterized in that the electroplating solution used in described third time electroplating processes processing procedure is the second nickel sulfate solution, the second described nickel sulfate solution is mixed by nickel sulfate, Nickel dichloride., boric acid and water, wherein the concentration of nickel sulfate is 150～350g/L, the concentration of Nickel dichloride. is 20～70g/L, the concentration of boric acid is 20～70g/L, the PH of the second described nickel sulfate solution is 3.5～5.0, and temperature is 40～60 DEG C。
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