CN214052850U

CN214052850U - Constant-temperature electroplating rinsing bath

Info

Publication number: CN214052850U
Application number: CN202022821487.3U
Authority: CN
Inventors: 王�华; 陈明军
Original assignee: Suzhou Coplate Surface Treatment Technology Co ltd
Current assignee: Suzhou Kangpulai New Materials Co.,Ltd.
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-08-27
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a wash bowl is electroplated to constant temperature, including the wash bowl body, be provided with the heat exchange cavity who is used for holding thermostatic equipment on the leg of the at least both sides of wash bowl body, be provided with on the leg of one of them side of wash bowl body other both sides be used for holding to the motor cavity of the compression motor that thermostatic equipment provided power, the heat exchange cavity with the motor cavity all covers has the access door that can open. It carries out the low temperature management and control to the washing temperature for even in the summer of high temperature, when the workshop temperature reached about 30 ℃, the zinc layer surface that sinks that the zinc comes out also did not oxidize rapidly, has solved the problem of sinking zinc layer oxidation, and keeps sufficient activity to carry out subsequent chemical nickel plating, effectively solves the poor problem of cohesion between aluminum base material and the surface coating.

Description

Constant-temperature electroplating rinsing bath

Technical Field

The utility model relates to a constant-temperature electroplating rinsing bath.

Background

The key point is special plating pretreatment to improve the binding force of the electroplated layer on the surface of the aluminum and aluminum alloy parts and obtain a good plated layer. The aluminum material is active and has strong affinity with oxygen, an oxide layer is easily formed in the air, and meanwhile, the aluminum as an amphoteric metal is unstable in acid and alkaline solutions, so that the possible reaction is complex, and the difficulty is increased for electroplating.

Therefore, the prior art widely adopts the two-time zinc deposition process of the aluminum piece, removes the oxide film on the surface of the aluminum in the zinc deposition solution and deposits a zinc layer to prevent the aluminum matrix from reoxidation, so that the matrix metal aluminum and the subsequent coating layer generate good bonding force.

Although the existing two-time zinc deposition process can improve the binding force between an aluminum matrix and a subsequent coating, the problem of poor binding force still exists for products with high-temperature baking or welding requirements, and cannot be effectively solved.

Because the activity of zinc metal is close to that of aluminum, oxidation reaction is easy to occur, particularly in a high-temperature environment, oxidation is easy to occur, so that a zinc layer on the surface of aluminum becomes loose, the phenomenon of poor binding force such as foaming, peeling and the like of a plating layer and an aluminum matrix in subsequent electroplating is caused, particularly the problem of poor binding force during online welding assembly of electroplated parts is caused, products are rejected badly, and the quality cost is huge.

The problems are less in winter, the environmental temperature of an electroplating workshop is higher in summer, and the problems are frequent. The oxidation on the surface of the zinc layer is reduced by changing the environmental temperature of the workshop, the difficulty is very high, air exhaust is needed in an electroplating workshop, and the conventional refrigeration equipment such as an air conditioner needs closed environment circulation refrigeration, so that the refrigeration effect is difficult to achieve theoretically.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a constant-temperature electroplating rinsing bath.

In order to solve the technical problem, the utility model provides a constant temperature electroplating wash bowl is provided to technical scheme, including the wash bowl body, be provided with the heat exchange cavity who is used for holding thermostatic equipment on the leg of the at least both sides of wash bowl body, be provided with on the leg of one side wherein of the other both sides of wash bowl body be used for holding to thermostatic equipment provides the motor cavity of the compression motor of power, the heat exchange cavity with the motor cavity all covers the access door that has the ability of opening.

In some embodiments, each of the heat exchange chambers is provided with a corresponding thermostat device, and each set of the thermostat devices comprises a cold-heat exchanger for realizing circulation of cold and hot water in and out of the tank and controlling the temperature of water washing to be 10-25 ℃.

In some embodiments, the sink body is a thermally conductive material and the access door is a thermally insulating material.

In some embodiments, the access door is provided with a lock which is locked with the groove body.

The scope of the present invention is not limited to the technical solutions formed by specific combinations of the above technical features, and other technical solutions formed by arbitrary combinations of the above technical features or equivalent features should be covered. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present application are mutually replaced to form the technical solution.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model provides a washing bath is electroplated to constant temperature, it carries out the low temperature management and control to the washing temperature for even in the summer of high temperature, when the workshop temperature reached about 30 ℃, the zinc layer surface that sinks zinc and come out also does not oxidize rapidly, has solved the problem of sinking zinc layer oxidation, and keeps sufficient activity to carry out subsequent chemical nickel plating, effectively solves the bad problem of cohesion between aluminum substrate and the surface coating.

Drawings

FIG. 1 is a perspective view of a constant-temperature electroplating rinsing bath;

wherein: 1. a sink body; 11. a heat exchange chamber; 12. a motor chamber; 13. an access door; 131. a lock device.

Detailed Description

As shown in the attached drawing 1, a constant-temperature electroplating rinsing bath comprises a washing bath body 1, heat exchange chambers 11 used for accommodating constant-temperature equipment are arranged on leg walls on two sides of the washing bath body 1, motor chambers 12 used for accommodating compression motors providing power for the constant-temperature equipment are arranged on leg walls on one side of the other two sides of the washing bath body, the heat exchange chambers 11 and the motor chambers 12 are all covered with openable access doors 13, lock devices 131 locked with bath bodies are arranged on the access doors 13, the washing bath body 1 is made of heat conducting materials, and the access doors 13 are made of heat insulating materials.

Each heat exchange chamber 11 is internally provided with corresponding constant temperature equipment, and each set of constant temperature equipment comprises a cold-heat exchanger which realizes the circulation of cold and hot water in and out of the tank and can control the water washing temperature to be 10-25 ℃.

A constant-temperature aluminum alloy electroplating process using a constant-temperature electroplating rinsing bath comprises the following steps:

step 1, carrying out oil removal, alkali etching and bright dipping treatment on an aluminum substrate;

step 2, performing first zinc precipitation on the aluminum substrate in a first zinc precipitation tank;

step 3, washing the aluminum substrate in a first constant-temperature electroplating water washing tank, wherein the water temperature in the water washing tank is 10-25 degrees;

step 4, performing secondary zinc precipitation on the aluminum substrate in a second zinc precipitation tank;

step 5, washing the aluminum substrate in a second constant-temperature electroplating water washing tank, wherein the water temperature in the water washing tank is 10-25 degrees;

and 6, performing electroplating after twice sedimentation and washing to obtain the electroplated aluminum alloy.

The utility model provides a washing bath is electroplated to constant temperature, it carries out the low temperature management and control to the washing temperature, even make in the summer of high temperature, when the workshop temperature reaches about 30 ℃, the zinc layer surface that heavy zinc came out also does not have rapid oxidation, the problem of heavy zinc layer oxidation has been solved, and keep sufficient activity to carry out subsequent chemical nickel plating, bad greatly reduced between base member and the cladding material during follow-up electroplating, the bad proportion of product high temperature welding cohesion is about 0.001%, can neglect almost, effectively solve the bad problem of cohesion between aluminium base material and the surface coating.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a constant temperature electroplating wash bowl, includes wash bowl body (1), its characterized in that: be provided with heat exchange chamber (11) that are used for holding thermostatic equipment on the leg of the at least both sides of washtrough body (1), be provided with on the leg of one of them side of washtrough body in addition and be used for holding to thermostatic equipment provides the compression motor's of power motor cavity (12), heat exchange chamber (11) with motor cavity (12) all cover has access door (13) that can open.

2. The constant-temperature electroplating rinsing bath according to claim 1, characterized in that a corresponding constant-temperature device is arranged in each heat exchange chamber (11), and each set of constant-temperature device comprises a cold-heat exchanger which realizes circulation of cold and hot water in the bath and can control the rinsing temperature to be 10-25 ℃.

3. The constant-temperature electroplating rinsing bath according to claim 1, wherein the rinsing bath body (1) is made of a heat-conducting material, and the access door (13) is made of a heat-insulating material.

4. The constant-temperature electroplating rinsing bath according to claim 1, wherein the access door (13) is provided with a lock (131) locked with the bath body.