Titanium alloy back-side exhaust and argon filling hood and use method

Abstract

This invention provides a titanium alloy back-side argon-filling and evacuation shield and its usage method. The titanium alloy back-side argon-filling and evacuation shield is designed to include: an inner evacuation and filling mechanism, an outer evacuation suction cup mechanism, a temperature monitoring mechanism, and an argon-locking mechanism; it features a double-layer design for evacuation and argon filling and locking. Thermometers are placed at four corners to monitor temperature changes on the back side during welding in real time, facilitating decision-making regarding tooling removal. The main body's argon-locking layer can be rotated to lock 90% of the argon gas during disassembly, allowing for reuse during subsequent installations, further reducing argon waste. The outer ring of the separator acts as a suction cup for evacuation and adsorption, effectively adhering to the back side of the welding area. The inner ring argon-locking separator uses a shut-off valve for argon extraction and filling, achieving argon gas protection.

Description

Technical Field

[0001] This application relates to the field of shipbuilding technology, and in particular to a titanium alloy back-side argon-filled vacuum hood and its usage method. Background Technology

[0002] During the shipbuilding phase, the entire welding process of titanium alloys or when the temperature exceeds 350°C must be carried out under the protection of argon gas; otherwise, the material will deteriorate.

[0003] During the installation or welding of outfitting components, gas protection is required on the back side of the weld. Currently, a ventilator is used for continuous gas filling. This method is relatively wasteful of argon gas. The assembly and welding process of ordinary outfitting components generally takes about 2 hours, and the gas protection requires an uninterrupted supply, wasting 1 / 3 of the argon gas cylinder. Summary of the Invention

[0004] This invention designs a titanium alloy back-side argon-filling and evacuation cover and its usage method. The cover features a double-layer design, allowing for both argon extraction and filling with argon gas. Four corner thermometers are incorporated to monitor temperature changes on the back side during welding, facilitating decision-making regarding fixture removal. The main body's gas-locking layer can be rotated to lock 90% of the argon gas during disassembly, allowing for reuse during subsequent installations and further reducing argon gas waste. The outer ring of the divider acts as a suction cup for evacuation and adsorption, effectively adhering to the back side of the welding area. The inner ring's gas-locking divider, equipped with a shut-off valve, allows for argon extraction and filling, providing argon gas protection.

[0005] This invention provides a titanium alloy back-side argon-filled vacuum cover, comprising: an inner vacuum filling mechanism, an outer vacuum suction cup mechanism, a temperature monitoring mechanism, and an air-locking mechanism;

[0006] The inner inflation / extraction mechanism includes a first cylinder and a first cover. The first cover closes one end of the first cylinder. On both sides of the first cover, there is an inflation check valve and a first depressurization check valve, each with a shut-off valve at one end. The inflation check valve is used to connect to a gas cylinder for inflation, and the first depressurization check valve is used to connect to a depressurization device for depressurization. A rubber plug is provided at the other end of the inflation check valve and the first depressurization check valve for sealing after inflation and depressurization. A through hole is provided at the center of the first cover, and a first circular tube is connected to the through hole. A first rubber ring is wrapped around the other end of the first cylinder for sealing.

[0007] The outer suction cup mechanism includes a second cylinder and a second cover. The second cover closes one end of the second cylinder. On both sides of the second cover, there is a hemispherical switch with a shut-off valve at one end and a one-way valve for suction. The one-way valve is used to connect to the suction device for suction. A rubber plug is provided at the other end of the one-way valve for sealing after suction. The other end of the second cylinder is covered with a second rubber ring for sealing. The side wall of the second cylinder is connected to the side wall of the first cylinder through a connecting steel pipe.

[0008] The temperature monitoring mechanism is installed on the connecting steel pipe and is used to monitor the temperature of the connecting steel pipe.

[0009] The airlock mechanism includes an airlock disc with a vent hole. A second round tube is connected to the center of one side of the airlock disc. The second round tube is inserted into the first round tube through the through hole inside the first cylinder. The inner side of the second round tube is threaded, and a traction bolt is connected to the thread. The traction bolt is used to pull the airlock mechanism in conjunction with the first round tube. A sealing gasket is provided between the traction bolt and the second round tube.

[0010] In some embodiments, the number of outer suction cup mechanisms includes four.

[0011] In some embodiments, the four outer suction cup mechanisms are evenly arranged around the first cylinder.

[0012] In some embodiments, the number of temperature monitoring mechanisms includes four, which are arranged one-to-one with the outer air suction cup mechanism.

[0013] In some embodiments, the temperature monitoring mechanism includes a thermometer, a third cylinder, and a third cover. The third cover closes one end of the third cylinder, and the thermometer directly senses temperature by contacting the third cover inside the third cylinder. The thermometer is connected to the third cylinder by a rubber fastening sleeve.

[0014] In some embodiments, a lubricant is provided between the first circular tube and the second circular tube.

[0015] In some embodiments, the other end of the first cylinder is covered with a first rubber ring, and the other end of the second cylinder is covered with a second rubber ring, including:

[0016] The first rubber ring extends out of the first cylinder and is L-shaped;

[0017] The second rubber ring extends out of the second cylinder and is L-shaped.

[0018] In some embodiments, the number of vent holes includes four.

[0019] In some embodiments, a tie post is provided on the side of the vent hole opposite to the second circular tube, and a rubber plug is installed in cooperation with it.

[0020] This invention provides a method for using a titanium alloy back-side argon-filled vacuum hood as described in any of the above embodiments, comprising:

[0021] The first step is to align the titanium alloy back-side argon-filled vacuum hood with the back of the welding position and use the outer layer vacuum suction cup mechanism to evacuate the air.

[0022] The second step is to evacuate the inner gas filling mechanism, connect the gas cylinder to the one-way filling valve with a gas pipe, and fill it with argon gas.

[0023] Third, after use, open the gas lock mechanism to lock in the argon gas;

[0024] Fourth step: Observe the thermometer temperature. When the temperature drops to the design value, the argon-filled vacuum cover on the back of the titanium alloy can be removed.

[0025] The beneficial effects of the above embodiments of the present invention include:

[0026] 1) The design features a double-layer partition, allowing for both evacuation and argon gas filling for gas locking;

[0027] 2) The thermometers are designed at the four corners, which can be used to observe the temperature changes on the back of the weld in real time, and help to decide whether to remove the tooling;

[0028] 3) The main body is designed with an air-locking layer that can be rotated to lock 90% of the argon gas during disassembly, and can be reused during the next installation, further reducing argon gas waste;

[0029] 4) The outer ring is designed as a suction cup for air extraction and adsorption, which can be effectively adsorbed on the back of the welding area.

[0030] 5) The inner ring is designed with an airlock separation and a shut-off valve, which can draw in and fill with argon gas to achieve argon gas protection. Attached Figure Description

[0031] The accompanying drawings illustrate, by way of example and not limitation, the various embodiments discussed herein.

[0032] Figure 1 This is a schematic diagram of an oblique view of a titanium alloy back-side argon-filled vacuum hood structure according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of another oblique view of a titanium alloy back-side argon-filled vacuum cover according to an embodiment of the present invention;

[0034] Figure 3 This is a top view schematic diagram of a titanium alloy back-side argon-filled vacuum hood according to an embodiment of the present invention;

[0035] Figure 4 A schematic diagram of the main structure of the inner layer air pumping and inflation mechanism;

[0036] Figure 5 A schematic diagram of the inner layer air pumping and inflation mechanism viewed from below;

[0037] Figure 6 This is a schematic diagram of the main structure of the outer air suction cup mechanism.

[0038] Figure 7 A top-view structural diagram of the outer air suction cup mechanism;

[0039] Figure 8 This is a schematic diagram of the main structure of the temperature monitoring mechanism;

[0040] Figure 9 This is a schematic diagram of the oblique view of the airlock mechanism;

[0041] Figure 10 This is another oblique view schematic diagram of the airlock mechanism. Detailed Implementation

[0042] In order to gain a more detailed understanding of the features and technical content of the embodiments of this application, the implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration only and are not intended to limit the embodiments of this application.

[0043] In the embodiments described in this application, it should be noted that, unless otherwise stated and limited, the term "connection" should be interpreted broadly. For example, it can be an electrical connection, or a connection between two internal components. It can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above term according to the specific circumstances.

[0044] It should be noted that the terms "first," "second," and "third" used in the embodiments of this application are merely used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first," "second," and "third" can be interchanged in a specific order or sequence where permitted. It should be understood that the objects distinguished by "first," "second," and "third" can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in an order other than those illustrated or described herein.

[0045] The following is in conjunction with the appendix Figures 1 to 10 The titanium alloy back-side argon-filled vacuum shield of this embodiment of the invention will be described in detail.

[0046] This invention provides a titanium alloy back-side argon-filled vacuum shield, such as... Figures 1 to 3 As shown, it includes: an inner layer air-inflation mechanism 1, an outer layer air-inflation suction cup mechanism 2, a temperature monitoring mechanism 3, and an air-locking mechanism 4.

[0047] like Figure 2 , Figure 4and Figure 5 As shown, the inner inflation / extraction mechanism 1 includes a first cylinder 5 and a first cover 6. The first cover 6 closes one end of the first cylinder 5. On both sides of the first cover 6, there is an inflation check valve 7 and a first depressurization check valve 8, each with a shut-off valve 30 at one end. The inflation check valve 7 is used to connect to a gas cylinder for inflation, and the first depressurization check valve 8 is used to connect to a depressurization device for depressurization. The other end of the inflation check valve 7 and the first depressurization check valve 8 is provided with a rubber plug 9 for sealing after inflation and depressurization. A through hole 10 is opened at the center of the first cover 6, and a first round tube 11 is connected to the corresponding through hole 10. The other end of the first cylinder 5 is covered with a first rubber ring 12 for sealing.

[0048] like Figure 6 and Figure 7 As shown, the outer suction cup mechanism 2 includes a second cylinder 13 and a second cover 14. The second cover 14 closes one end of the second cylinder 13. A hemispherical switch 15 with a shut-off valve 30 and a second suction check valve 16 are respectively provided on both sides of the second cover 14. The second suction check valve 16 is used to connect to the suction device for suction. A rubber plug 9 is provided at the other end of the second suction check valve 16 for sealing after suction. The other end of the second cylinder 13 is covered with a second rubber ring 18 for sealing. The side wall of the second cylinder 13 is connected to the side wall of the first cylinder 5 through a connecting steel pipe 19.

[0049] Temperature monitoring mechanism 3 is installed on the connecting steel pipe 19 to monitor the temperature of the connecting steel pipe 19.

[0050] like Figure 9 and Figure 10 As shown, the airlock mechanism 4 includes an airlock disc 20 with a vent hole 21. A second round tube 22 is connected to the center of one side of the airlock disc 20. The second round tube 22 is used to be inserted into the first round tube 11 through the through hole 10 inside the first cylinder 5. The inner side of the second round tube 22 is threaded and connected to a traction bolt 24. The traction bolt 24 is used to cooperate with the first round tube 11 to pull the airlock mechanism 4. A sealing washer 25 is provided between the traction bolt 24 and the second round tube 22.

[0051] In some embodiments, such as Figures 1 to 3 As shown, the number of outer suction cup mechanisms 2 includes four.

[0052] In some embodiments, such as Figures 1 to 3 As shown, four outer suction cup mechanisms 2 are evenly arranged around the first cylinder 5.

[0053] In some embodiments, such as Figures 1 to 3 As shown, there are four temperature monitoring mechanisms 3, which are set up one-to-one with the outer air suction cup mechanism 2.

[0054] In some embodiments, such as Figure 8 As shown, the temperature monitoring mechanism 3 includes a thermometer 26, a third cylinder 27 and a third cover 28. The third cover 28 closes one end of the third cylinder 27. The thermometer 26 directly senses the temperature by contacting the third cover 28 inside the third cylinder 27. The thermometer 26 is connected to the third cylinder 27 through a rubber fastening sleeve 29.

[0055] In some embodiments, a lubricant is provided between the first circular tube 11 and the second circular tube 22.

[0056] In some embodiments, the other end of the first cylindrical body 5 is covered with a first rubber ring 12, and the other end of the second cylindrical body 13 is covered with a second rubber ring 18, including:

[0057] The first rubber ring 12 extends out of the first cylinder 5 and is L-shaped.

[0058] The second rubber ring 18 extends out of the second cylinder 13 and is L-shaped.

[0059] In some embodiments, such as Figure 9 and Figure 10 As shown, the number of vent holes 21 includes four.

[0060] In some embodiments, such as Figure 9 As shown, a tie post 17 is provided on the side of the vent 21 opposite to the second circular tube 22, and a rubber plug 9 is installed in conjunction with it.

[0061] This invention provides a method for using a titanium alloy back-side argon-filled vacuum hood as described in the above embodiments, comprising:

[0062] The first step is to align the titanium alloy back-side argon-filled vacuum hood with the back of the welding position and use the outer layer vacuum suction cup mechanism to evacuate the air.

[0063] The second step is to evacuate the inner gas filling mechanism, connect the gas cylinder to the one-way filling valve with a gas pipe, and fill it with argon gas.

[0064] Third, after use, open the gas lock mechanism to lock in the argon gas;

[0065] Fourth step: Observe the thermometer temperature. When the temperature drops to the design value, the argon-filled vacuum cover on the back of the titanium alloy can be removed.

[0066] The following provides a detailed implementation of another embodiment of the titanium alloy back-side argon-filled vacuum shield of the present invention.

[0067] This invention relates to a titanium alloy back-side argon-filled vacuum cover, comprising an inner vacuum filling mechanism, an outer vacuum suction cup mechanism, a four-corner temperature monitoring mechanism, an air-locking mechanism, and a portable gas cylinder.

[0068] The inner inflation / deflation mechanism can be constructed using a combination of steel plate, check valve, shut-off valve, and rubber. A 2mm steel plate is machined and welded into a cylindrical structure with a diameter of 200mm and a height of 50mm. The inflation check valve is made of a steel pipe with an outer diameter of 8mm, an inner diameter of 6mm, and a length of 20mm. A 4mm hole is drilled in the cylindrical structure, and a 1mm diameter, 8mm long tie rod is welded to the inner side of the structure within the hole. A 6mm diameter, 6mm thick rubber plug is installed to accommodate this tie rod for inflation and subsequent internal sealing. A 10mm outer diameter, 8mm inner diameter, 20mm long shut-off valve is threaded onto the other end of the inflation check valve. The inflation check valve is identical to the inflation check valve, with the tie rod welded to the outer side of the structure within the hole. 5mm thick circular rubber rings are installed on the inner and outer rings of the cylindrical structure, extending 5mm beyond the cylindrical structure in an L-shape.

[0069] The outer suction cup mechanism can be constructed from a combination of steel plate, one-way valve, stop valve, and rubber. It uses 2mm steel plate, machined and welded into small columnar structures with a diameter of 50mm and a height of 50mm. Four such small columnar structures are configured. These structures are connected to the inner inflation / deflation mechanism at two corners using a steel pipe with an outer diameter of 8mm, an inner diameter of 6mm, and a length of 40mm, forming a structure with a large circle in the center and smaller circles at the four corners. The suction one-way valve uses a steel pipe with an outer diameter of 8mm, an inner diameter of 6mm, and a length of 20mm. A 4mm hole is drilled in the columnar structure, and a 1mm diameter, 8mm long tie rod is welded to the inner side of the structure within the hole, along with a 6mm rubber plug for suction and subsequent internal sealing. A stop valve with an outer diameter of 10mm, an inner diameter of 8mm, and a length of 20mm is threaded onto the other end of the suction one-way valve. A section of the stop valve is directly connected for the venting and disassembly mechanism. 5mm thick circular rubber rings are installed on the inner and outer rings of the columnar structure, extending 5mm beyond the columnar structure in an L-shape.

[0070] The four-corner temperature monitoring mechanism can be composed of steel plates, steel pipes, and thermometers. It uses a steel pipe with an outer diameter of 8mm, an inner diameter of 6mm, and a length of 20mm. One end of the pipe is sealed with a plate, and the other end is fitted with a 6mm diameter, 60mm long thermometer measuring 50-600℃. The thermometer directly contacts the sealing plate for direct temperature sensing. The thermometer and steel pipe are tightly connected by a rubber sleeve with an inner diameter of 5mm, an outer diameter of 6mm, and a length of 30mm. The temperature monitoring mechanism is welded onto the connecting steel pipe between the inner air-inflation mechanism and the outer air-suction mechanism.

[0071] The airlock mechanism can be made of steel plate, steel pipe, bolts, nuts, and rubber. A 198mm diameter, 5mm thick airlock plate is machined from the steel plate. A 4mm hole is drilled 60mm from the center of the airlock plate, and a 1mm diameter, 8mm long tie rod is welded to the inner side of the structure within the drilled hole, along with a 6mm diameter, 6mm thick rubber plug. A 20mm hole is drilled in the center of the top circle of the inner layer's columnar structure for inflation / deflation. A large round tube with an outer diameter of 24mm, an inner diameter of 20mm, and a length of 120mm is welded to the outer layer. A small round tube with an outer diameter of 20mm, an inner diameter of 12mm, and a length of 120mm is welded to the center of the airlock plate, and a 26mm outer diameter, 20mm inner diameter washer is fitted for sealing. The small round tube is embedded in the large round tube and lubricated with grease for sealing and internal movement. The small round tube is threaded internally and fitted with an M10 120mm long bolt and a 24mm outer diameter, 10mm inner diameter washer for sealing.

[0072] Portable gas cylinders can be commercially available, with a diameter of 100mm and a length of 500mm, and a carrying tube with an outer diameter of 16mm and an inner diameter of 8mm.

[0073] How to use:

[0074] 1. Align the tooling with the back of the welding position, and the outer suction cup mechanism;

[0075] 2. Evacuate the inner gas filling mechanism, connect the portable gas cylinder or argon cylinder to the filling valve with a gas hose, and fill with argon.

[0076] 3. After use, open the gas lock mechanism to lock in the argon gas;

[0077] 4. Observe the temperature of the thermometer. When the temperature drops to the design value, the tooling can be removed and the next welding point can be moved.

[0078] The technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0079] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A titanium alloy back-side argon-filled vacuum hood, characterized in that, include: Inner layer air pumping mechanism, outer layer air pumping suction cup mechanism, temperature monitoring mechanism and airlock mechanism; The inner inflation / extraction mechanism includes a first cylinder and a first cover. The first cover closes one end of the first cylinder. On both sides of the first cover, there is an inflation check valve and a first suction check valve, each with a shut-off valve at one end. The inflation check valve is used to connect to a gas cylinder for inflation, and the first suction check valve is used to connect to a suction device for suction. The other ends of the inflation check valve and the first suction check valve are provided with rubber plugs for sealing after inflation and suction. A through hole is opened at the center of the first cover, and a first round tube is connected to the through hole. The other end of the first cylinder is covered with a first rubber ring for sealing. The outer suction cup mechanism includes a second cylinder and a second cover. The second cover closes one end of the second cylinder. On both sides of the second cover, there is a hemispherical switch with a shut-off valve at one end and a one-way valve for suction. The one-way valve is used to connect to the suction device for suction. A rubber plug is provided at the other end of the one-way valve for sealing after suction. The other end of the second cylinder is covered with a second rubber ring for sealing. The side wall of the second cylinder is connected to the side wall of the first cylinder through a connecting steel pipe. The temperature monitoring mechanism is installed on the connecting steel pipe and is used to monitor the temperature of the connecting steel pipe. The airlock mechanism includes an airlock disc with a vent hole. A second round tube is connected to the center of one side of the airlock disc. The second round tube passes through the inside of the first cylinder and the through hole and is then embedded in the first round tube. The inner side of the second round tube is threaded, and a traction bolt is connected to the thread. The traction bolt is used to cooperate with the first round tube to pull the airlock mechanism. A sealing washer is provided between the traction bolt and the second round tube.

2. The titanium alloy back-side argon-filled vacuum hood according to claim 1, characterized in that, The number of outer air suction cup mechanisms includes four.

3. The titanium alloy back-side argon-filled vacuum hood according to claim 2, characterized in that, The four outer suction cup mechanisms are evenly arranged around the first cylinder.

4. The titanium alloy back-side argon-filled vacuum hood according to claim 2, characterized in that, The temperature monitoring mechanism comprises four components, each corresponding to one of the outer air suction cup mechanisms.

5. The titanium alloy back-side argon-filled vacuum hood according to claim 1, characterized in that, The temperature monitoring mechanism includes a thermometer, a third cylinder, and a third cover. The third cover closes one end of the third cylinder. The thermometer directly senses temperature by contacting the third cover inside the third cylinder. The thermometer is connected to the third cylinder by a rubber fastening sleeve.

6. The titanium alloy back-side argon-filled vacuum hood according to claim 1, characterized in that, A lubricant is provided between the first circular tube and the second circular tube.

7. The titanium alloy back-side argon-filled vacuum hood according to claim 1, characterized in that, The first rubber ring extends out of the first cylinder and is L-shaped; The second rubber ring extends out of the second cylinder and is L-shaped.

8. The titanium alloy back-side argon-filled vacuum shroud according to claim 1, characterized in that, The number of vent holes includes four.

9. The titanium alloy back-side argon-filled vacuum shroud according to claim 1, characterized in that, A tie post is provided on the side of the vent hole opposite to the second circular tube, and a rubber plug is installed in conjunction with it.

10. A method of using a titanium alloy back-side argon-filled vacuum hood as described in any one of claims 1 to 9, characterized in that, The method includes: The first step is to align the titanium alloy back-side argon-filled vacuum hood with the back of the welding position and use the outer layer vacuum suction cup mechanism to evacuate the air. The second step is to evacuate the inner gas filling mechanism, connect the gas cylinder to the one-way filling valve with a gas pipe, and fill it with argon gas. Third, after use, open the gas lock mechanism to lock in the argon gas; Fourth step: Observe the thermometer temperature. When the temperature drops to the design value, the argon-filled vacuum cover on the back of the titanium alloy can be removed.

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