A chemical nickel plating anti-sedimentation plating tank

Abstract

The invention discloses a chemical nickel plating anti-precipitation plating tank, comprising a plating tank and a heating tank, wherein the heating tank is located outside the plating tank, a medium for heating the plating solution in the plating tank is added into the heating tank, and an electric heating element for heating the plating solution in the plating tank is installed, a detachable heat-conducting pipe is fixedly installed on the inner wall of the plating tank, the inner hole of the heat-conducting pipe is connected with the heating tank, and a detachable anti-plating protective sleeve is provided on the inner wall of the plating tank and / or the outer surface of the heat-conducting pipe. The invention is a double-slot structure, wherein the plating tank is heated in a water bath by the heating tank, and is protected by a bagging method, the anti-nickel plating protective sleeve can prevent nickel from being deposited on the heat-conducting pipe, the plating tank has a good heat exchange effect, and the cost of replacing and cleaning the plating tank is reduced.

Description

Technical Field

[0001] The invention relates to a plating tank, in particular to a chemical nickel plating anti-sedimentation plating tank. Background Art

[0002] Chemical nickel plating is the fastest growing type of chemical plating. The plating solution generally uses nickel sulfate, nickel acetate and other salts as the main salts, hypophosphite, sodium borohydride, borane, hydrazine and other reducing agents, and then adds various additives. The operation is carried out in an acidic solution at 90°C or a neutral solution or alkaline solution close to room temperature. In actual chemical plating, the catalyst activity of the workpiece is closely related to the process. People have found that for some surface materials that do not have catalytic activity, such as stainless steel, enamel, varnish, plastic, fiberglass, etc., under conditions of long-term plating, mechanical friction, local temperature or pH value is too high, or the concentration of reducing agent is too high, the container walls and hooks made of them will also show catalytic activity and deposit nickel, especially in areas with high temperatures. This is the reason why containers, hooks, filter pumps, heat pipes (heating pipes), etc. must be continuously treated with concentrated nitric acid during the chemical plating process, which increases the trouble and cost of production. In order to avoid the deposition of nickel on the heat pipe (heating pipe), the bottom or wall of the container, resulting in a decrease in thermal conductivity, in addition to working hard on the formula, the plating tank must be frequently replaced for cleaning. Summary of the invention

[0003] The present invention aims to solve the problems existing in the above-mentioned prior art and provides a chemical nickel plating anti-precipitation plating tank, which can avoid nickel deposition on the inner wall of the heat pipe or container causing a decrease in thermal conductivity and reduce the cost of replacing and cleaning the plating tank.

[0004] The present invention solves its technical problems by adopting a technical solution: a chemical nickel plating anti-precipitation plating tank, comprising a plating solution tank and a heating tank, wherein the heating tank is located outside the plating solution tank, the heating tank is filled with a medium for heating the plating solution in the plating solution tank and is installed with an electric heating element for heating the plating solution in the plating solution tank, a detachable heat-conducting pipe is fixedly installed on the inner wall of the plating solution tank, the inner hole of the heat-conducting pipe is connected to the heating tank, and a detachable anti-plating protective cover is provided on the inner wall of the plating solution tank and / or the outer surface of the heat-conducting pipe.

[0005] For further improvement, a female joint is provided on the inner wall of the plating tank, and an internally threaded tube is provided on the female joint; a male joint is provided at one end of the heat-conducting tube, and an externally threaded tube is provided on the male joint for threaded connection with the internally threaded tube.

[0006] For further improvement, the female connector and the male connector are respectively provided with a first valve and a second valve, and a switch member is provided between the first valve and the second valve. When the female connector and the male connector are combined, the switch member can open the first valve and the second valve at the same time, and when the female connector and the male connector are separated, the first valve and the second valve are closed.

[0007] Further improvement, the first valve includes a first support, a first spring and a first valve flap, the second valve includes a second support, a second spring and a second valve flap, the switch element is a push rod movably arranged between the first valve flap and the second valve flap, and the axial length of the push rod is greater than the maximum axial opening of any one of the first valve flap and the second valve flap.

[0008] For further improvement, a gear ring is rotatably installed on the notch of the heating tank, the gear ring is meshed with a gear, the gear is connected to the motor, positioning rods are circumferentially distributed on the upper side of the gear ring, a lifting ring is fixedly provided on the notch of the plating tank, a flange plate is provided on the outer wall of the plating tank, and a positioning hole is provided on the flange plate for plugging and cooperating with the positioning rod.

[0009] For further improvement, a plurality of first stirring rods extending into the heating tank are provided on the lower side of the gear ring, a flipper is fixedly provided on the notch of the heating tank, and a second stirring rod extending into the plating solution tank is fixedly installed on the output end of the flipper.

[0010] For further improvement, the first stirring rod and the second stirring rod are both L-shaped structures, a stirring impeller is fixedly installed between the lower ends of several of the first stirring rods, a telescopic rod is provided at the lower end of the second stirring rod, an electric angle adjuster is provided at the lower end of the telescopic rod, and a baffle is fixedly installed on the output end of the electric angle adjuster.

[0011] Further improvement, the electric heating element includes a waterproof heating tube, a rotary joint and a temperature controller, the waterproof heating tube and the rotary joint are fixedly mounted on the stirring impeller, and the waterproof heating tube is connected to the temperature controller outside the heating tank through the rotary joint.

[0012] Further improvement, the anti-plating protective sleeve is composited by a stainless steel wire braided layer, a plastic cloth layer and a varnish layer.

[0013] The beneficial effects of the present invention are as follows: the present invention has a double tank structure, the plating solution tank is heated in a water bath by a heating tank, and is protected by a bagging method, the anti-nickel plating protective sleeve can prevent nickel from being deposited on the heat pipe, the plating tank has a good heat exchange effect, and the cost of replacing and cleaning the plating tank is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure of the heat pipe when it is installed;

[0016] Figure 3 It is a schematic diagram of the structure after the heat pipe is disassembled;

[0017] Description of reference numerals: 100, plating tank, 110, female connector, 120, internal threaded pipe, 130, first valve, 131, first support, 132, first spring, 133, first valve flap, 140, lifting ring, 150, flange plate, 160, positioning hole, 170, flipper, 180, second stirring rod, 181, telescopic rod, 182, electric angle adjuster, 183, baffle, 200, heating tank, 210, gear ring, 22 0. Gear. 230. Motor. 240. Positioning rod. 250. First stirring rod. 260. Stirring impeller. 300. Electric heating element. 310. Waterproof heating tube. 320. Rotary joint. 330. Temperature controller. 400. Heat conducting tube. 410. Anti-plating protective cover. 420. Male joint. 430. Externally threaded tube. 440. Second valve. 441. Second support. 442. Second spring. 443. Second valve flap. 450. Switch. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings:

[0019] Refer to the attached Figure 1 : In this embodiment 1, a chemical nickel plating anti-precipitation plating tank includes a plating tank 100 and a heating tank 200. The heating tank 200 is located outside the plating tank 100. The heating tank 200 is filled with a medium for heating the plating solution in the plating tank 100 and is installed with an electric heating element 300 for heating the plating solution in the plating tank 100. A detachable heat pipe 400 is fixedly installed on the inner wall of the plating tank 100, and the inner hole of the heat pipe 400 is connected to the heating tank 200. A detachable anti-plating protective cover 410 is provided on the inner wall of the plating tank 100 and / or the outer surface of the heat pipe 400.

[0020] When in use, nickel plating solution is added to the plating tank 100, and a medium for heating the plating solution in the plating tank 100 is added to the heating tank 200. The commonly used medium is water, and the condition for water to reach a boiling point is 100 degrees. The electric heating element 300 heats the water in the heating tank 200, and the chemical plating reaction that needs constant temperature heating is heated in a water bath. The heat is transferred to the plating tank 100 that needs to be heated through the water, so as to achieve the purpose of heating the plating solution. The heat is conducted through the internal and external heat pipes 400 and the tank body of the plating tank 100, so that the nickel plating solution is heated evenly. When the temperature of the nickel plating solution meets the nickel plating conditions, the nickel plating process can be carried out. The heat pipe 400 is made of copper material with high thermal conductivity. The local temperature is high and nickel metal particles are easily deposited. The anti-plating protective cover 410 wrapped outside is made of some surface materials that do not have catalytic activity. Nickel metal particles are not easily deposited on its surface, which is not easy to cause heating difficulties of the heat pipe 400, and the service life of the heat pipe 400 is extended. When too much nickel metal is deposited on the surface of the anti-plating protective cover 410, the anti-plating protective cover 410 can be disassembled and replaced to ensure the heat exchange effect of the plating tank, thereby reducing the cost of replacing and cleaning the plating tank. The anti-plating protective cover 410 is composed of a stainless steel wire braided layer, a plastic cloth layer and a varnish layer arranged in sequence from the inside to the outside.

[0021] Embodiment 2, on the basis of embodiment 1, as attached Figure 2-3 As shown, a female connector 110 is provided on the inner wall of the plating tank 100, and an internally threaded tube 120 is provided on the female connector 110. A male connector 420 is provided at one end of the heat conducting tube 400, and an externally threaded tube 430 is provided on the male connector 420 to be threadedly connected to the internally threaded tube 120. The heat conducting tube 400 and the plating tank 100 are detachably fixedly connected by threaded connection, so as to facilitate installation and maintenance and replacement.

[0022] The female connector 110 and the male connector 420 are provided with a first valve 130 and a second valve 440, respectively, and a switch 450 is provided between the first valve 130 and the second valve 440. When the female connector 110 and the male connector 420 are combined, the switch 450 can open the first valve 130 and the second valve 440 at the same time, so that the water in the heating tank 200 can flow into the heat conducting pipe 400 and perform a more efficient heat exchange with the plating solution in the plating solution tank 100. The cold water with high density in the heat conducting pipe 400 will sink into the heating tank 200 for reheating, and the hot water with low density will rise to the top of the heat conducting pipe 400 for heat exchange. When the female connector 110 and the male connector 420 are separated, the first valve 130 and the second valve 440 are closed. The second valve 440 can seal the pipe opening after the heat pipe 400 is disassembled to prevent the water in the heat pipe 400 from flowing into the plating tank 100 and diluting the plating solution; the first valve 130 seals the female connector 110 after the heat pipe 400 is disassembled to prevent the plating solution in the plating tank 100 and the water in the heating tank 200 from mixing and causing plating solution leakage and pollution. The arrangement of the above valves makes the installation and disassembly of the heat pipe 400 more convenient, and provides convenience for the replacement of the heat pipe 400 at any time during the nickel plating production process. The heat pipe 400 can be operated and used without emptying the plating tank 100, which enhances the practicality of the plating tank and allows the number and arrangement shape of the heat pipe 400 to be reasonably arranged according to needs.

[0023] Embodiment 3, on the basis of embodiment 2, the first valve 130 includes a first support 131, a first spring 132 and a first valve flap 133, the second valve 440 includes a second support 441, a second spring 442 and a second valve flap 443, the switch member 450 is a push rod movably arranged between the first valve flap 133 and the second valve flap 443, and one end of the push rod is selected to be fixedly connected to the first valve flap 133. The axial length of the push rod is greater than the maximum axial opening of any one of the first valve flap 133 and the second valve flap 443. In the above technical solution, the first valve 130 and the second valve 440 adopt a one-way valve structure. When the female connector 110 and the male connector 420 are combined, the two ends of the push rod simultaneously open the first valve flap 133 and the second valve flap 443, so that the heat pipe 400 and the heating tank 200 are connected. When the female connector 110 and the male connector 420 are separated, the first valve flap 133 is automatically moved upward by the first spring 132 to close the female connector 110 and block the connection between the plating tank 100 and the heating tank 200. The second valve flap 443 is automatically moved downward by the second spring 442 to close the nozzle of the heat conducting pipe 400 to prevent leakage of the heat conducting pipe 400 during water disassembly. The stiffness coefficients of the first spring 132 and the second spring 442 are roughly equal. If the ejector adopts a spring structure, the stiffness coefficient should be greater than the first spring 132 or the second spring 442.

[0024] Embodiment 4, on the basis of Embodiments 1-3, a gear ring 210 is rotatably mounted on the notch of the heating tank 200, the gear ring 210 is meshed with a gear 220, and the gear 220 is connected to a motor 230. In order to install and replace the plating tank 100, positioning rods 240 are circumferentially distributed on the upper side of the gear ring 210, a lifting ring 140 is fixedly arranged on the notch of the plating tank 100, a flange plate 150 is arranged on the outer wall of the plating tank 100, and a positioning hole 160 is arranged on the flange plate 150 to be plugged with the positioning rod 240. After the motor 230 is powered on, the gear 220 is driven to rotate, driving the plating tank 100 on the gear ring 210 to rotate, so that the plating tank 100 can be heated evenly, and the inner wall of the plating tank 100 can drive the plating solution to flow, so that the plating solution is stirred evenly, thereby enhancing the effect of chemical plating.

[0025] The lower side of the gear ring 210 is provided with a plurality of first stirring rods 250 extending into the heating tank 200, and a turner 170 is fixedly provided on the notch of the heating tank 200, and a second stirring rod 180 which can extend into the plating tank 100 is fixedly installed on the output end of the turner 170. When the gear ring 210 rotates, it will drive the first stirring rod 250 and the heating tank 200 to move relative to each other, and the first stirring rod 250 can stir the water in the heating tank 200 to make its temperature uniform. The turner 170 can rotate the second stirring rod 180 into the plating tank 100, and due to the relative movement of the second stirring rod 180 and the plating tank 100, the second stirring rod 180 can stir the plating liquid in the plating tank 100, improve the flow field characteristics of the plating liquid, increase the turbulence intensity of the plating liquid, promote the irregular flow of the plating liquid in the plating tank 100, and significantly improve the distribution uniformity of fine particles in the plating liquid.

[0026] The first stirring rod 250 and the second stirring rod 180 are both L-shaped structures, and a stirring impeller 260 is fixedly installed between the lower ends of several of the first stirring rods 250. The stirring impeller 260 can promote the upward and downward circulation in the heating tank 200 and enhance the heat exchange efficiency. A telescopic rod 181 is provided at the lower end of the second stirring rod 180, and an electric angle adjuster 182 is provided at the lower end of the telescopic rod 181. A baffle 183 is fixedly installed on the output end of the electric angle adjuster 182. The telescopic rod 181 can adjust the length of the second stirring rod 180 and the stirring depth, and the electric angle adjuster 182 can adjust the angle of the baffle 183 and the cross-sectional area swept during stirring.

[0027] The electric heating element 300 includes a waterproof heating tube 310, a rotary joint 320 and a thermostat 330. The waterproof heating tube 310 and the rotary joint 320 are fixedly mounted on the stirring impeller 260. The waterproof heating tube 310 can heat while rotating and contact the circulating water to improve the heating efficiency. The waterproof heating tube 310 is connected to the thermostat 330 outside the heating tank 200 through the rotary joint 320. The rotary joint serves as a connector for the pipeline and can rotate 360 ​​degrees without restriction relative to the pipeline. It can be used to transmit a variety of media such as liquid, oil, and gas. There are many types of rotary joints, including multi-channel rotary joints, single-channel rotary joints, high-voltage rotary joints, high-speed rotary joints, and special rotary joints for various types of equipment. It can also be combined with a conductive slip ring to form a hybrid integrated slip ring, which is mostly used in small and medium-sized automation equipment. The electrical slip ring is a common combination form, that is, the pneumatic rotary joint is combined with the conductive slip ring to form an electrical integrated slip ring. When the waterproof heating pipe 310 adopts an electric heating pipe structure, the rotary joint 320 is used to transmit electricity, and the thermostat 330 controls the electric heating power input to the waterproof heating pipe 310. When the waterproof heating pipe 310 adopts a heat exchange pipe structure, the rotary joint 320 is used to transmit water, and the thermostat 330 controls the flow of hot water input to the waterproof heating pipe 310, which is convenient for industrial waste heat recovery.

[0028] Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A chemical nickel plating anti-segregation plating tank, comprising a plating tank (100) and a heating tank (200), wherein the heating tank (200) is located outside the plating tank (100), the heating tank (200) is filled with a medium for heating the plating solution in the plating tank (100) and is equipped with an electric heating element (300) for heating the plating solution in the plating tank (100), and characterized in that: A detachable heat-conducting pipe (400) is fixedly mounted on the inner wall of the plating liquid tank (100), the inner hole of the heat-conducting pipe (400) is connected to the heating tank (200), and a detachable anti-plating protective cover (410) is provided on the inner wall of the plating liquid tank (100) and / or the outer surface of the heat-conducting pipe (400); A female joint (110) is provided on the inner wall of the plating liquid tank (100), the female joint (110) is provided with an internally threaded tube (120), one end of the heat conducting tube (400) is provided with a male joint (420), the male joint (420) is provided with an externally threaded tube (430) threadedly connected to the internally threaded tube (120); The female connector (110) and the male connector (420) are respectively provided with a first valve (130) and a second valve (440); a switch component (450) is provided between the first valve (130) and the second valve (440); when the female connector (110) and the male connector (420) are combined, the switch component (450) can open the first valve (130) and the second valve (440) at the same time; when the female connector (110) and the male connector (420) are separated, the first valve (130) and the second valve (440) are closed; The first valve (130) comprises a first support (131), a first spring (132) and a first valve flap (133); the second valve (440) comprises a second support (441), a second spring (442) and a second valve flap (443); the switch element (450) is a push rod movably arranged between the first valve flap (133) and the second valve flap (443); the axial length of the push rod is greater than the maximum axial opening of any one of the first valve flap (133) and the second valve flap (443).

2. The chemical nickel plating anti-separation plating tank according to claim 1, characterized in that: A gear ring (210) is rotatably mounted on the notch of the heating tank (200), the gear ring (210) is meshed with a gear (220), the gear (220) is connected to a motor (230), positioning rods (240) are circumferentially distributed on the upper side of the gear ring (210), a lifting ring (140) is fixedly arranged on the notch of the plating tank (100), a flange plate (150) is arranged on the outer wall of the plating tank (100), and a positioning hole (160) is arranged on the flange plate (150) for plugging and cooperating with the positioning rod (240).

3. The chemical nickel plating anti-separation plating tank according to claim 2, characterized in that: A plurality of first stirring rods (250) extending into the heating tank (200) are provided on the lower side of the gear ring (210), a flipper (170) is fixedly provided on the notch of the heating tank (200), and a second stirring rod (180) that can extend into the plating liquid tank (100) is fixedly mounted on the output end of the flipper (170).

4. The chemical nickel plating anti-separation plating tank according to claim 3, characterized in that: The first stirring rod (250) and the second stirring rod (180) are both L-shaped structures; a stirring impeller (260) is fixedly mounted between the lower ends of a plurality of the first stirring rods (250); a telescopic rod (181) is provided at the lower end of the second stirring rod (180); an electric angle adjuster (182) is provided at the lower end of the telescopic rod (181); and a baffle (183) is fixedly mounted on the output end of the electric angle adjuster (182).

5. The chemical nickel plating anti-separation plating tank according to claim 4, characterized in that: The electric heating element (300) comprises a waterproof heating tube (310), a rotary joint (320) and a temperature controller (330); the waterproof heating tube (310) and the rotary joint (320) are fixedly mounted on the stirring impeller (260); and the waterproof heating tube (310) is connected to the temperature controller (330) outside the heating tank (200) via the rotary joint (320).

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