Titanium tank for surface treatment

Abstract

The utility model discloses a titanium tank for surface treatment, which comprises an inner wall titanium plate, an outer sealing plate and a thermal insulation layer, the inner wall titanium plate comprises a lateral titanium plate and a transverse titanium plate, the edge of the lateral titanium plate and the transverse titanium plate are arranged in a T shape, the edge of the lateral titanium plate and the transverse titanium plate are welded and fixed, the outer sealing plate comprises a lateral sealing plate and a transverse sealing plate, and the thermal insulation layer is arranged between the lateral sealing plate and the transverse sealing plate. The edge of the lateral sealing plate is provided with a first bending part which is bent in an L shape, the edge of the transverse sealing plate is provided with a second bending part which is bent in a U shape, the outer side wall of the first bending part and the outer side wall of the second bending part are attached to each other and fixedly welded, and the outer side wall of the transverse titanium plate and the inner side wall of the second bending part are attached to each other and fixedly connected. And heat preservation layers are clamped between the lateral titanium plates and the lateral sealing plates and between the transverse titanium plates and the transverse sealing plates. According to the utility model, a passivation film can be generated on the inner wall of the tank body, and in addition, based on the matching relationship between the titanium plates and the matching relationship between the outer sealing plates, the connection relationship of the tank body can be stable and reliable.

Description

Technical Field

[0001] The utility model relates to a reaction tank for PCB board blackening process, in particular to a titanium tank for surface treatment. Background Art

[0002] The treatment process methods of PCB blackening include black oxidation treatment, brown oxidation method, low-temperature blackening method, etc. Its function is to enhance the bonding strength between the inner copper foil and epoxy resin of multi-layer PCB boards, and it can be specifically achieved by passivating the copper surface and enhancing the surface roughness of the inner copper foil. In practical applications, most reaction tanks of electroless plating and electroplating equipment are generally made of materials such as steel, aluminum, and copper. However, in the PCB blackening process flow, the commonly used potions include oxidants, sodium chlorite, sodium hydroxide, trisodium phosphate, surfactants, or ammonia water solution of basic copper carbonate. In practical applications, reaction tanks made of materials such as steel, aluminum, and copper may react with the blackening potions and cannot meet the process requirements. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a titanium tank for surface treatment that can generate a passivation film on the inner wall of the tank body and has a stable and reliable connection relationship, aiming at the deficiencies of the prior art.

[0004] To solve the above technical problem, the utility model adopts the following technical solutions.

[0005] A titanium tank for surface treatment includes an inner wall titanium plate, an outer sealing plate, and a heat insulation layer. The inner wall titanium plate includes a lateral titanium plate and a transverse titanium plate. The edge of the lateral titanium plate is arranged in a "T" shape with the transverse titanium plate, and the edge of the lateral titanium plate is welded and fixed to the transverse titanium plate. The outer sealing plate includes a lateral sealing plate and a transverse sealing plate. The edge of the lateral sealing plate forms a first bending part with an "L" - shaped bend, and the edge of the transverse sealing plate forms a second bending part with a "U" - shaped bend. The outer side walls of the first bending part and the second bending part are mutually attached and welded and fixed. The outer side wall of the transverse titanium plate is mutually attached and fixedly connected to the inner side wall of the second bending part. The heat insulation layer is clamped between the lateral titanium plate and the lateral sealing plate and between the transverse titanium plate and the transverse sealing plate.

[0006] Preferably, the heat insulation layer is a heat insulation cotton layer.

[0007] Preferably, both the lateral sealing plate and the transverse sealing plate are stainless steel plates.

[0008] Preferably, two relatively arranged tank hoop fixing codes are fixedly connected to the inner wall titanium plate at the bottom, and a reinforcing square steel is fixed between the two tank hoop fixing codes.

[0009] Preferably, the two groove hoop fixing codes are respectively fixedly connected to the reinforcing square steel through bolts.

[0010] Preferably, the inner wall titanium plate is arranged in an inclined shape.

[0011] In the titanium tank for surface treatment disclosed by the present utility model, each side plate of the titanium tank is composed of an inner wall titanium plate, a heat insulation layer, and an outer sealing plate stacked together. To fix the three-layer structure, the present utility model splices the edge of the lateral titanium plate and the transverse titanium plate in a "T" shape and fixes them by welding or other means, which can not only improve the sealing performance at the joint of the inner wall of the tank body, but also prevent steel components from being exposed inside the tank. At the same time, on the outer side of the tank body, the first bent part bent in an "L" shape and the second bent part bent in a "U" shape are welded and fixed, and then the outer side wall of the transverse titanium plate is fixedly attached to the inner side wall of the second bent part. Based on the above structure, not only can the heat insulation layer be clamped between the inner wall titanium plate and the outer sealing plate, but also due to the chemical activity of the titanium material, a passivation film is generated on the inner wall of the tank body after filling with the liquid medicine, thereby bringing excellent corrosion resistance. In addition, by adopting the above splicing and fixing method, the present utility model also has the technical feature of stable and reliable connection relationship. Description of the Drawings

[0012] Figure 1 is a side sectional view of the titanium tank for surface treatment of the present utility model;

[0013] Figure 2 is Figure 1 the sectional view along the F-F line in

[0014] Figure 3 is Figure 1 the enlarged view of part A in Detailed Embodiment

[0015] The present utility model will be described in more detail below with reference to the drawings and embodiments.

[0016] The present utility model discloses a titanium tank for surface treatment, in combination with Figures 1 to 3As shown in the figure, it includes an inner wall titanium plate 1, an outer sealing plate 2 and a heat insulation layer 3. The inner wall titanium plate 1 includes a lateral titanium plate 10 and a transverse titanium plate 11. The edge of the lateral titanium plate 10 and the transverse titanium plate 11 are arranged in a "T" shape, and the edge of the lateral titanium plate 10 is welded and fixed to the transverse titanium plate 11. The outer sealing plate 2 includes a lateral sealing plate 20 and a transverse sealing plate 21. The edge of the lateral sealing plate 20 forms a first bending part 200 bent in an "L" shape, and the edge of the transverse sealing plate 21 forms a second bending part 210 bent in a "U" shape. The outer side wall of the first bending part 200 is mutually attached to the outer side wall of the second bending part 210 and the two are welded and fixed. The outer side wall of the transverse titanium plate 11 is mutually attached to the inner side wall of the second bending part 210 and the two are fixedly connected. The heat insulation layer 3 is clamped between the lateral titanium plate 10 and the lateral sealing plate 20 and between the transverse titanium plate 11 and the transverse sealing plate 21.

[0017] In the above structure, each side plate of the titanium tank is formed by laminating the inner wall titanium plate 1, the heat insulation layer 3 and the outer sealing plate 2. In order to fix the three-layer structure, the present invention splices the edge of the lateral titanium plate 10 and the transverse titanium plate 11 in a "T" shape and fixes them by welding or other means, which can not only improve the sealing performance at the joint of the inner wall of the tank, but also prevent steel components from being exposed in the tank. At the same time, on the outer side of the tank, the first bending part 200 bent in an "L" shape and the second bending part 210 bent in a "U" shape are welded and fixed, and then the outer side wall of the transverse titanium plate 11 is attached and fixed to the inner side wall of the second bending part 210. Based on the above structure, not only can the heat insulation layer 3 be clamped between the inner wall titanium plate 1 and the outer sealing plate 2, but also due to the chemical activity of the titanium material, a passivation film is generated on the inner wall of the tank after filling with the liquid medicine, thus bringing excellent corrosion resistance. In addition, the present invention adopts the above splicing and fixing method, and also has the technical feature of stable and reliable connection relationship.

[0018] In addition, compared with steel and other metal materials, the titanium reaction tank is characterized in that the properties of titanium are different from those of other metal materials, that is: titanium has high chemical activity, and a dense titanium oxide passivation film is easily generated on its surface, making it have excellent corrosion resistance. Compared with other metal materials, titanium also has the characteristics of high specific strength and light weight.

[0019] As a preferred material, in this embodiment, the heat insulation layer 3 is a heat insulation cotton layer.

[0020] In order to achieve reliable support on the outer side of the tank, in this embodiment, both the lateral sealing plate 20 and the transverse sealing plate 21 are stainless steel plates.

[0021] This embodiment has a clamping effect at the bottom of the tank. Specifically, please refer to Figure 1 and Figure 3, the inner wall titanium plate 1 located at the bottom is fixedly connected with two oppositely arranged groove hoop fixing codes 12, and a reinforcing square steel 13 is fixed between the two groove hoop fixing codes 12.

[0022] In order to reliably fix the inner wall titanium plate 1 and the reinforcing square steel 13, in this embodiment, the two groove hoop fixing codes 12 are respectively fixedly connected to the reinforcing square steel 13 through bolts 14.

[0023] As a preferred method, the inner wall titanium plate 1 is arranged in an inclined shape. Among them, the groove body has a liquid medicine outlet at the end where the inner wall titanium plate 1 slopes downward. Based on this inclined groove bottom, it is beneficial to the discharge of the liquid medicine.

[0024] In practical applications, the titanium reaction tank provided in this embodiment realizes the surface treatment process by configuring supply devices such as a circulation filtration device and an automatic liquid medicine adding device. At the same time, based on the excellent corrosion resistance, high specific strength and other characteristics of the titanium reaction tank, the quality of the surface treatment process is guaranteed. With its reasonable design, the structural reliability of the titanium reaction tank is also improved, and the use of titanium materials is greatly saved.

[0025] The above description is only a preferred embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent replacements or improvements made within the technical scope of the present invention shall be included within the scope protected by the present invention.

Claims

1. A titanium tank for surface treatment, characterized in that: The invention comprises an inner wall titanium plate (1), an outer sealing plate (2) and a thermal insulation layer (3), wherein the inner wall titanium plate (1) comprises a lateral titanium plate (10) and a transverse titanium plate (11), the edge of the lateral titanium plate (10) and the transverse titanium plate (11) are arranged in a "T" shape, and the edge of the lateral titanium plate (10) and the transverse titanium plate (11) are welded and fixed, and the outer sealing plate (2) comprises a lateral sealing plate (20) and a transverse sealing plate (21), the edge of the lateral sealing plate (20) is formed with a first bending portion (200) in an "L" shape, The edge of the transverse sealing plate (21) is formed with a second bending portion (210) in a "U" shape, the outer wall of the first bending portion (200) and the outer wall of the second bending portion (210) are in contact with each other and are welded and fixed, the outer wall of the transverse titanium plate (11) and the inner wall of the second bending portion (210) are in contact with each other and are fixedly connected, and the thermal insulation layer (3) is sandwiched between the lateral titanium plate (10) and the lateral sealing plate (20) and between the transverse titanium plate (11) and the transverse sealing plate (21).

2. The titanium bath for surface treatment according to claim 1, characterized in that: The thermal insulation layer (3) is a thermal insulation cotton layer.

3. The titanium tank for surface treatment according to claim 1, characterized in that: The lateral sealing plate (20) and the transverse sealing plate (21) are both stainless steel plates.

4. The titanium tank for surface treatment according to claim 1, characterized in that: The inner wall titanium plate (1) located at the bottom is fixedly connected to two groove hoop fixing codes (12) arranged opposite to each other, and a reinforcing square steel (13) is fixed between the two groove hoop fixing codes (12).

5. The titanium tank for surface treatment according to claim 4, characterized in that: The two groove hoop fixing codes (12) are respectively fixedly connected to the reinforcing square steel (13) by bolts (14).

6. The titanium tank for surface treatment according to claim 4, characterized in that: The inner wall titanium plate (1) is arranged in an inclined shape.

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