Double-sided argon protection device for titanium alloy casting repair welding

Abstract

The utility model discloses a double -faced argon protection device for titanium alloy casting repair welding, including metal fixed clamp, metal fixed clamp top fixed connection gas valve, the output fixed connection four -way shunt valve of gas valve, the input fixed of gas valve is equipped with the breather joint, the output fixed connection support hose of four -way shunt valve, the one end fixed connection argon protection cover of support hose far away four -way shunt valve, through both sides argon protection cover to need repair welding position carries out double -faced protection, prevents titanium alloy and not in the repair welding of complete argon environment, titanium alloy back and air oxidation reaction, give birth to oxidation, crack welding defect.

Description

Technical Field

[0001] This utility model relates to the field of argon gas repair welding technology, specifically a double-sided argon gas protection device for repair welding of titanium alloy castings. Background Technology

[0002] Repair welding is used to repair or strengthen existing welded joints or other welded areas. It is typically used in the following situations: 1. When existing welded joints have defects such as cracks, porosity, or incomplete penetration, repair welding is needed to eliminate these defects and improve the quality and safety of the joint. 2. When welded structures may be damaged or corroded during use, repair welding is necessary to restore their original function and performance. 3. For some special welded structures, such as high-pressure vessels and nuclear power plant equipment, repair welding may be required to improve their pressure resistance, corrosion resistance, and other properties.

[0003] When repairing titanium alloy castings by welding, only one side can be welded at a time, which can lead to oxidation on the other side of the titanium alloy casting, making it impossible to protect the other side with inert gas. Utility Model Content

[0004] The purpose of this invention is to provide a double-sided argon gas protection device for repair welding of titanium alloy castings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-sided argon gas protection device for repair welding of titanium alloy castings, comprising a metal fixing clamp, a gas valve fixedly connected above the metal fixing clamp, a four-way diverter valve fixedly connected to the output end of the gas valve, a vent connector fixedly provided at the input end of the gas valve, a support hose fixedly connected to the output end of the four-way diverter valve, and an argon gas protection cover fixedly connected to the end of the support hose away from the four-way diverter valve.

[0006] Preferably, the argon gas protective cover includes a cover body, a plurality of diverting wedges are rotatably connected inside the cover body, the cover body is provided with an oblong hole, a cylindrical rod is fixedly provided on one of the diverting wedges, the cylindrical rod passes through the oblong hole, and a cuboid rod is fixedly connected to one end of the diverting wedge near the bottom surface of the cover body, the cuboid rod is suspended inside the cover body.

[0007] Preferably, the support hose is a resilient metal tube.

[0008] Compared with the prior art, the beneficial effects of this utility model are: by using argon gas protective covers on both sides to provide double-sided protection for the area to be repaired, it prevents the titanium alloy from undergoing an oxidation reaction with the air when the titanium alloy is not repaired in a completely argon gas environment, thus preventing oxidation, cracking, and welding defects. Attached Figure Description

[0009] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the argon gas protective cover structure of this utility model;

[0011] Figure 3 This is a schematic diagram of the relevant structure of the metal fixing clip of this utility model;

[0012] Figure 4 This is a schematic diagram of the relevant structure of the diversion wedge of this utility model.

[0013] In the diagram: 1. Metal fixing clamp; 2. Gas valve; 3. Four-way diverter valve; 4. Vent connector; 5. Support hose; 6. Argon gas protective cover; 61. Cover body; 62. Diverter wedge; 63. Waist-shaped hole; 64. Cylindrical rod; 65. Cuboid rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0015] Please refer to 1-4. One embodiment of this utility model is provided: a double-sided argon gas protection device for repair welding of titanium alloy castings, including a metal fixing clamp 1. The metal fixing clamp 1 is composed of a main arm, a clamping arm, a cylindrical helical torsion spring, and a stud, which belongs to the prior art. A gas valve 2 is fixedly connected to the top of the metal fixing clamp 1. A four-way diverter valve 3 is fixedly connected to the output end of the gas valve 2. A vent connector 4 is fixedly provided at the input end of the gas valve 2. A support hose 5 is fixedly connected to the output end of the four-way diverter valve 3. An argon gas protection cover 6 is fixedly connected to the end of the support hose 5 away from the four-way diverter valve 3. The argon gas protection cover 6 provides double-sided protection for both sides of the titanium alloy casting. During repair welding, the inert gas is discharged by the argon gas protection cover 6 to ensure that the titanium alloy is repaired in a completely argon gas environment, effectively preventing the back of the titanium alloy from reacting with air (oxygen, nitrogen, etc.) and causing oxidation, crack welding defects.

[0016] The argon gas protective cover 6 includes a cover body 61, with several diversion wedges 62 rotatably connected inside the cover body 61. The cover body 61 has an oblong hole 63. A cylindrical rod 64 is fixedly attached to one of the diversion wedges 62, and the cylindrical rod 64 passes through the oblong hole 63. A cuboid rod 65 is rotatably connected to one end of the diversion wedge 62 near the bottom surface of the cover body 61. The cuboid rod 65 is suspended inside the cover body 61. The cylindrical rod 64 drives one of the diversion wedges 62 to swing, thereby moving the cuboid rod 65 and causing the other diversion wedges 62 to swing, thus changing the direction of argon gas discharge.

[0017] The support hose 5 is a flexible metal tube, which can be used to support the argon gas protective cover 6 and fix its position.

[0018] Working principle: First, use the metal clamp 1 to clamp the workpiece or worktable. The gas connector 4 and the four-way diverter valve 3 are threadedly connected to the gas valve 2. The two holes on the upper side of the four-way diverter valve 3 are connected to the bracket hose 5, and the other hole is reserved for backup. Each bracket hose 5 is connected to an argon gas protective cover 6. All pipeline connections are normal. Then, open the gas valve (turn the rotary control knob) and after gas is supplied, align the two argon gas protective covers 6 with the front and back of the part to be welded. Finally, turn the cylindrical rod 64 to align the diverter wedge 62 with the part to be welded and adjust the gas to blow towards the position to be welded, thereby achieving the purpose of protecting the front and back of the titanium alloy casting to be welded from oxidation.

Claims

1. A double-sided argon gas protection device for repair welding of titanium alloy castings, comprising a metal fixing clamp (1), characterized in that: A gas valve (2) is fixedly connected above the metal clamp (1). A four-way diverter valve (3) is fixedly connected to the output end of the gas valve (2). A vent connector (4) is fixedly provided at the input end of the gas valve (2). A support hose (5) is fixedly connected to the output end of the four-way diverter valve (3). An argon gas protective cover (6) is fixedly connected to the end of the support hose (5) away from the four-way diverter valve (3).

2. The double-sided argon gas protection device for repair welding of titanium alloy castings according to claim 1, characterized in that: The argon gas protective cover (6) includes a cover body (61), and several diversion wedges (62) are rotatably connected inside the cover body (61). The cover body (61) is provided with a waist-shaped hole (63). A cylindrical rod (64) is fixedly provided on one of the diversion wedges (62). The cylindrical rod (64) passes through the waist-shaped hole (63). A cuboid rod (65) is fixedly connected to one end of the diversion wedge (62) near the bottom surface of the cover body (61). The cuboid rod (65) is suspended inside the cover body (61).

3. A double-sided argon gas protection device for repair welding of titanium alloy castings according to claim 1, characterized in that: The support hose (5) is a tough metal tube.

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