Equipment capable of carrying out composite chemical nickel plating with long service life
By designing a composite electroless nickel plating device containing a circulating pump assembly, efficient circulating flow of working fluid and solid-liquid separation are achieved, the problems of unstable working fluid and loose coating in the prior art are solved, and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202420349322.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-02-26
AI Technical Summary
In the existing composite electroless nickel plating technology, the addition of small-sized solid particles increases the activity of the working liquid, resulting in instability, easy decomposition, and loose coating, making it difficult to achieve long-life nickel plating.
A device including a working tank, an adjustment tank, a liquid reservoir, a filter and a liquid clean tank is designed to achieve efficient circulating flow of the working fluid through the circulating pump assembly, and solid-liquid separation is performed after nickel plating is completed to avoid particulate matter deposition.
It effectively avoids the instability and loose coating problems of composite electroless nickel plating working fluid, extends the service life of the equipment, and realizes efficient separation and reuse of solid and liquid.
Smart Images
Figure CN222631558U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of composite chemical nickel plating, in particular to a device capable of performing composite chemical nickel plating with a long service life. Background Art
[0002] Chemical plating is also called electroless plating or autocatalytic plating. The specific process refers to the process in which metal ions in an aqueous solution are reduced by a reducing agent and precipitated onto the surface of a solid substrate under certain conditions. This process is different from displacement plating in that the coating can be continuously thickened, and the plated metal itself also has catalytic ability.
[0003] The existing composite chemical plating is an advanced surface treatment technology that disperses special-purpose solid particles into the chemical nickel plating liquid. However, when solid particles are added, the smaller the size, the larger the surface area of the particles, which greatly increases the activity of the chemical nickel plating working solution, resulting in instability of the chemical nickel plating working solution. In severe cases, it will directly lead to the decomposition of the working solution and the working solution will be scrapped. At the same time, when the working solution is generally stirred, more continuous crystals will be produced, and the coating will be relatively loose. Even if a surfactant is added, the dispersion effect is not obvious. Utility Model Content
[0004] The utility model aims to overcome the shortcomings of the prior art and provide a device capable of performing composite chemical nickel plating with a long service life.
[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a device capable of performing composite chemical nickel plating for a long life, comprising a working tank, an adjusting tank, a liquid storage tank, a filter, and a clear liquid tank placed in sequence; the working tank and the adjusting tank are connected to each other on one side opposite to the other through a circulation pipeline; the liquid inlets and outlets of the working tank, the adjusting tank, the liquid storage tank, the filter, and the clear liquid tank are all connected through a circulation pump assembly; the top surfaces of the working tank and the adjusting tank are both provided with an upper cover; the working tank and the adjusting tank are both provided with a temperature control heating assembly for detecting temperature and heating and a PH detection assembly for detecting PH value; Air stirring nozzles are arranged in the working tank and the adjusting tank; working liquid sampling ports and medicine adding ports are arranged on the upper covers of the working tank and the adjusting tank respectively; a workpiece to be processed is arranged in the working tank; the circulating pump assembly circulates the liquid in the working tank and the adjusting tank efficiently during nickel plating; the circulating pump assembly transports the liquid in the working tank and the adjusting tank to the liquid storage tank when nickel plating is finished; after the transportation, the circulating pump assembly transports the liquid to the filter for solid-liquid separation, and then the solid and liquid separated at the filter are respectively sent to the liquid storage tank and the clear liquid tank for storage and waiting for reuse.
[0006] Preferably, the circulation pump assembly includes a first valve and a second valve respectively arranged at the liquid outlets of the working tank and the adjustment tank, a first water pump arranged on the connecting pipe between the first valve and the second valve, a third valve arranged on the connecting pipe between the first valve and the first water pump, a fourth valve arranged on the connecting pipe between the second valve and the liquid inlet of the liquid storage tank, a fifth valve and a sixth valve respectively arranged at the liquid outlet of the liquid storage tank, a seventh valve arranged on the liquid inlet of the filter, a second water pump arranged on the connecting pipe between the fifth valve and the seventh valve, an eighth valve arranged on the connecting pipe between the liquid outlet of the filter and the liquid inlet of the liquid storage tank, a ninth valve arranged on the connecting pipe between the liquid outlet of the filter and the liquid inlet of the clear liquid tank, a tenth valve arranged on the liquid outlet of the clear liquid tank, and a third water pump arranged on the connecting pipe between the tenth valve and the third valve; the third water pump is connected to the sixth valve by a connecting pipe; the third valve is connected to the third water pump.
[0007] Preferably, the temperature control heating component includes a temperature display arranged outside the working tank and the adjustment tank, temperature sensors arranged inside the working tank and the adjustment tank respectively, and heaters arranged on the inner walls of the working tank and the adjustment tank respectively.
[0008] Preferably, a heat-insulating layer is provided in the inner walls of the working tank and the adjusting tank.
[0009] Preferably, the pH detection assembly includes a pH detector arranged outside the working tank and the adjustment tank, and a pH probe arranged inside the working tank and the adjustment tank respectively.
[0010] Preferably, the filter is a ceramic tubular membrane with a pore size less than 0.1 micron, or a polytetrafluoroethylene tubular membrane.
[0011] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0012] The utility model can not only circulate the liquid in the working tank and the adjusting tank efficiently to avoid the generation of continuous crystals, but also store the filtered solid and liquid separately, thus avoiding the instability and short life of the composite chemical nickel plating working solution. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:
[0014] Attached Figure 1 The utility model is a schematic diagram of the overall structure of the equipment capable of performing composite chemical nickel plating with a long service life.
[0015] Among them: 1. working tank; 2. adjustment tank; 3. filter; 4. clear liquid tank; 5. circulation pipeline; 6. circulation pump assembly; 6a. first valve; 6b. second valve; 6c. first water pump; 6d. third valve; 6e. fourth valve; 6f. fifth valve; 6g. sixth valve; 6h. seventh valve; 6i. second water pump; 6j. eighth valve; 6k. ninth valve; 6l. tenth valve; 6m. third water pump; 7. upper cover; 8. temperature control and heating assembly; 81. temperature display; 82. temperature sensor; 83. heater; 9. PH detection assembly; 91. PH detector; 92. PH probe; 10. air stirring nozzle; 11. working liquid sampling port; 12. medicine adding port; 13. insulation layer; 14. liquid storage tank. DETAILED DESCRIPTION
[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0017] Attached Figure 1The equipment for composite chemical nickel plating with a long service life described in the utility model comprises a working tank 1, an adjusting tank 2, a liquid storage tank 14, a filter 3, and a clear liquid tank 4 which are arranged in sequence; the opposite side of the working tank 1 and the adjusting tank 2 are connected to each other through a circulation pipeline 5; the liquid inlets and outlets of the working tank 1, the adjusting tank 2, the liquid storage tank 14, the filter 3, and the clear liquid tank 4 are connected through a circulation pump assembly 6; the top surfaces of the working tank 1 and the adjusting tank 2 are both provided with an upper cover 7; the working tank 1 and the adjusting tank 2 are both provided with a temperature control heating assembly 8 for detecting temperature and heating and a pH detection assembly 9 for detecting pH value; the working tank 1 and the adjusting tank 2 are both provided with an air stirring nozzle 10; the working tank 1 and The upper cover 7 of the adjustment tank 2 is respectively provided with a working liquid sampling port 11 and a medicine addition port 12; the working tank 1 is provided with a workpiece to be processed; the circulating pump assembly 6 circulates the liquid in the working tank 1 and the adjustment tank 2 efficiently during nickel plating; the circulating pump assembly 6 transports the liquid in the working tank 1 and the adjustment tank 2 to the liquid storage tank 14 when the nickel plating is finished; after the transportation, the circulating pump assembly 6 transports the liquid to the filter 3 for solid-liquid separation, and then the solid and liquid separated from the filter 3 are respectively sent to the liquid storage tank 14 and the clear liquid tank 4 for storage and waiting for reuse; the circulating pump assembly 6 includes a first valve 6a and a second valve 6b respectively arranged at the liquid outlets of the working tank 1 and the adjustment tank 2 , a first water pump 6c arranged on the connecting pipe between the first valve 6a and the second valve 6b, a third valve 6d arranged on the connecting pipe between the first valve 6a and the first water pump 6c, a fourth valve 6e arranged on the connecting pipe between the second valve 6b and the liquid inlet of the liquid storage tank 14, a fifth valve 6f and a sixth valve 6g respectively arranged on the liquid outlet of the liquid storage tank 14, a seventh valve 6h arranged on the liquid inlet of the filter 3, a second water pump 6i arranged on the connecting pipe between the fifth valve 6f and the seventh valve 6h, an eighth valve 6j arranged on the connecting pipe between the liquid outlet of the filter 3 and the liquid inlet of the liquid storage tank 14, a third valve 6j arranged on the connecting pipe between the liquid outlet of the filter 3 and the liquid inlet of the clear liquid tank 4 A ninth valve 6k, a tenth valve 61 arranged on the liquid outlet of the clear liquid tank 4, and a third water pump 6m arranged on the connecting pipe between the tenth valve 61 and the third valve 6d; the third water pump 6m is connected to the sixth valve 6g through a connecting pipe; the third valve 6d is connected to the third water pump 6m; the temperature control heating component 8 includes a temperature display arranged outside the working tank 1 and the adjustment tank 2, a temperature sensor 81 respectively arranged in the working tank 1 and the adjustment tank 2, and a heater 83 respectively arranged on the inner wall of the working tank 1 and the adjustment tank 2; the PH detection component 9 includes a PH detector 91 arranged outside the working tank 1 and the adjustment tank 2, and a PH probe 92 respectively arranged in the working tank 1 and the adjustment tank 2.
[0018] Furthermore, a heat-insulating layer 13 is provided in the inner walls of the working tank 1 and the adjusting tank 2 to prevent the heat from being lost too quickly.
[0019] Furthermore, the filter 3 is made of a ceramic tubular membrane or a polytetrafluoroethylene tubular membrane with a pore size less than 0.1 micrometer to improve the filtering effect.
[0020] When in use: first, the composite chemical plating working solution is prepared according to the use, added to the adjustment tank 2, the temperature is set, the heater 83 is turned on, and the temperature is increased. Then, the third valve 6d and the third valve 6d are closed, the first valve 6a and the second valve 6b are opened, and the first water pump 6c is turned on. The working solution flows and circulates through the circulation pipe 5 that is interconnected at the upper end of the working tank 1 and the adjustment tank 2. The composite chemical plating working solution is homogenized by the circulation driven by the first water pump 6c, and the particles cannot sink. When the temperature and pH reach the working conditions, the workpiece is placed in the working tank 1. Composite chemical plating is carried out in the working tank 1. The working liquid concentration is sampled and analyzed through the sampling port on the upper cover 7 of the working tank 1, and the amount of the composite chemical plating liquid to be added is calculated, and then added through the potion adding port 12 of the adjustment tank 2. After the processing is completed, the working liquid needs to separate solid particles to prevent the working liquid from decomposing due to long storage time. First, the fifth valve 6f and the sixth valve 6g are closed, the fourth valve 6e is opened, and the second valve 6b is closed. The working liquid of the working tank 1 is pumped into the liquid storage tank 14 through the first water pump 6c. After the liquid in the working tank 1 is pumped out, the first valve 6a is closed. , open the second valve 6b, extract the working liquid of the adjustment tank 2 into the liquid storage tank 14, after the extraction is completed, close the first water pump 6c, and then separate the solid particles and the liquid, first open the fifth valve 6f, the seventh valve 6h, the eighth valve 6j, the ninth valve 6k, close the tenth valve 6l, open the second water pump 6i, the separated particulate matter returns to the liquid storage tank from the eighth valve 6j opened by the filter 3, and the separated clear liquid enters the clear liquid tank 4 from the ninth valve 6k opened by the filter 3. After the separation is completed, close the second water pump 6i, and then when the workpiece is processed, open the fifth valve 6f and the seventh valve 6h, open the tenth valve 6l, the sixth valve 6g, the third valve 6d and the second valve 6b, and then open the third water pump 6m to discharge the composite chemical plating working liquid in the liquid storage tank 14 and the clear liquid tank into the adjustment tank 2. After the composite chemical plating working liquid is discharged, close the third valve 6d and the third water pump 6m, and then open the first valve 6a and the first water pump 6c to perform processing, and so on.
[0021] The above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the utility model.
Claims
1. A device capable of long-life composite chemical nickel plating, characterized in that: It comprises a working tank, an adjusting tank, a liquid storage tank, a filter, and a clear liquid tank placed in sequence; the opposite side of the working tank and the adjusting tank is connected to each other through a circulation pipeline; the liquid inlets and outlets of the working tank, the adjusting tank, the liquid storage tank, the filter, and the clear liquid tank are connected through a circulation pump assembly; the top surfaces of the working tank and the adjusting tank are both provided with an upper cover; the working tank and the adjusting tank are both provided with a temperature control heating assembly for detecting temperature and heating and a PH detection assembly for detecting PH value; the working tank and the adjusting tank are both provided with an air stirring nozzle; The upper covers of the working tank and the adjusting tank are respectively provided with a working liquid sampling port and a medicine adding port; a workpiece to be processed is arranged in the working tank; the circulating pump assembly circulates the liquid in the working tank and the adjusting tank efficiently during nickel plating; the circulating pump assembly transports the liquid in the working tank and the adjusting tank to the liquid storage tank when the nickel plating is finished; after the transportation, the circulating pump assembly transports the liquid to the filter for solid-liquid separation, and then the solid and liquid separated in the filter are respectively sent to the liquid storage tank and the clear liquid tank for storage and waiting for reuse.
2. The device capable of long-life composite chemical nickel plating according to claim 1, characterized in that: The circulation pump assembly includes a first valve and a second valve respectively arranged at the liquid outlets of the working tank and the adjustment tank, a first water pump arranged on the connecting pipe between the first valve and the second valve, a third valve arranged on the connecting pipe between the second valve and the first water pump, a fourth valve arranged on the connecting pipe between the second valve and the liquid inlet of the liquid storage tank, a fifth valve and a sixth valve respectively arranged on the liquid outlet of the liquid storage tank, a seventh valve arranged on the liquid inlet of the filter, a second water pump arranged on the connecting pipe between the fifth valve and the seventh valve, an eighth valve arranged on the connecting pipe between the liquid outlet of the filter and the liquid inlet of the liquid storage tank, a ninth valve arranged on the connecting pipe between the liquid outlet of the filter and the liquid inlet of the clear liquid tank, a tenth valve arranged on the liquid outlet of the clear liquid tank, and a third water pump arranged on the connecting pipe between the tenth valve and the third valve; the third water pump is connected to the sixth valve by a connecting pipe; the third valve is communicated with the third water pump.
3. The equipment capable of long-life composite chemical nickel plating according to claim 1, characterized in that: The temperature control heating component comprises a temperature display arranged outside the working tank and the adjusting tank, temperature sensors arranged inside the working tank and the adjusting tank respectively, and heaters arranged on the inner walls of the working tank and the adjusting tank respectively.
4. The equipment capable of long-life composite chemical nickel plating according to claim 3, characterized in that: The inner walls of the working tank and the adjusting tank are provided with a heat-insulating layer.
5. The equipment capable of long-life composite chemical nickel plating according to claim 1, characterized in that: The pH detection component comprises a pH detector arranged outside the working tank and the adjusting tank, and pH probes arranged inside the working tank and the adjusting tank respectively.
6. The equipment capable of long-life composite chemical nickel plating according to any one of claims 1 to 5, characterized in that: The filter is a ceramic tubular membrane with a pore size less than 0.1 micron, or a polytetrafluoroethylene tubular membrane.