Titanium-containing material pouring device for preventing titanium element oxidation

Abstract

The application relates to a titanium-containing material pouring anti-titanium element oxidation tool, and relates to the field of titanium-containing material pouring. The tool comprises a tool main body, support legs are symmetrically and fixedly connected below the tool main body, a pouring opening is arranged in the middle of the tool main body, inert gas protection assemblies are arranged on the two sides in the pouring opening, and a sealing dustproof assembly is arranged above the pouring opening. The tool is provided with two half-ring pipe seats and multiple air jet nozzles, inert gas can be uniformly sprayed from the inner side of the pouring opening to a pouring cavity, a full-range dead-angle-free protection gas curtain is formed, the contact between air and high-temperature molten titanium-containing material is effectively isolated, and the titanium element oxidation rate is obviously reduced. The tool is provided with the sealing dustproof assembly, the pouring opening is sealed and protected by a sealing cover and a dustproof ring before pouring, impurities such as dust are prevented from entering the cavity, and double protection is formed by cooperating with inert gas protection during the pouring process.

Description

Technical Field

[0001] This application relates to the technical field of titanium-containing material casting, and in particular to a tooling for preventing titanium oxidation during titanium-containing material casting. Background Technology

[0002] Titanium and titanium alloys possess excellent properties such as low density, high specific strength, and good corrosion resistance, making them widely used in aerospace, medical devices, and chemical industries. However, during the casting and molding process of titanium-containing materials, titanium is chemically reactive, especially in its molten state at high temperatures. It readily reacts with oxygen and nitrogen in the air to form oxide products such as TiO2 and TiN. These oxide products severely degrade the material's mechanical properties and corrosion resistance, leading to increased product scrap rates and higher production costs.

[0003] In the existing technology, inert gas protection casting is usually used to prevent oxidation problems during the casting of titanium-containing materials. Although inert gas protection casting is relatively economical, traditional protection devices are mostly simple gas injection structures. The inert gas coverage in the casting area is uneven, which can easily lead to protection dead zones, resulting in local titanium elements still having the risk of oxidation. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a titanium-containing casting fixture for preventing titanium oxidation, which offers excellent protection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A titanium-containing casting fixture for preventing titanium oxidation includes a fixture body, with symmetrical and fixedly connected support legs at the bottom of the fixture body, a casting port in the middle of the fixture body, inert gas protection components on both sides inside the casting port, and a sealing and dustproof component above the casting port. The inert gas protection assembly includes a semi-ring pipe seat, which is fixedly connected to the inner wall of the pouring port. One end of the semi-ring pipe seat is fixedly connected to a jet nozzle in a semi-ring shape, and the other end of the semi-ring pipe seat is fixedly connected to a diversion pipe. One end of the diversion pipe is fixedly connected to a main gas supply pipe, and one end of the main gas supply pipe is fixedly connected to a gas storage tank.

[0006] Optionally, a pressure regulating valve and a flow meter are installed on the main gas supply line.

[0007] By adopting the above technical solution, the gas storage tank valve is opened, and the pressure and flow rate of argon gas are adjusted by the pressure regulating valve and the flow meter. Argon gas enters the semi-ring pipe seat through the main gas supply pipe and the branch pipe, and is injected into the casting cavity from the jet nozzle. The inert gas can evenly cover the casting area and form a stable protective gas curtain. The pressure regulating valve and the flow meter can accurately control the delivery pressure and flow rate of the inert gas according to the casting requirements, so as to avoid the splashing of molten material due to excessive gas pressure or insufficient protection due to insufficient pressure.

[0008] Optionally, the jet nozzle can be directed towards the casting cavity inside the tooling body.

[0009] Optionally, rubber anti-slip pads are fixedly connected to the bottom of the support legs.

[0010] By adopting the above technical solution, the rubber anti-slip pads are designed to effectively prevent slipping.

[0011] Optionally, the sealing and dustproof assembly includes a connecting pipe seat, which is fixedly connected to the middle of the upper part of the tooling body. A dustproof ring is fixedly fitted onto the surface of the connecting pipe seat, and a sealing cap is tightly inserted into the upper part of the connecting pipe seat. A polytetrafluoroethylene high-temperature resistant sealing gasket is fixedly connected to the inner wall of the sealing cap.

[0012] By adopting the above technical solution, before pouring, the sealing cap is placed on the connecting pipe seat on the pouring port by using the handle, and the dustproof ring and polytetrafluoroethylene high-temperature resistant sealing gasket achieve sealing and dust prevention.

[0013] Optionally, a handle is fixedly attached to the top of the sealing cap.

[0014] By adopting the above technical solution, the handle design makes it easy to pick up and put down the sealing cap.

[0015] Optionally, a silicone sleeve is fixedly fitted onto the surface of the handle.

[0016] By adopting the above technical solution, the silicone sleeve achieves the effect of heat insulation and protection.

[0017] Optionally, the surface of the silicone sleeve is surrounded and secured with anti-slip protrusions.

[0018] By adopting the above technical solution, the anti-slip protrusions achieve the anti-slip effect.

[0019] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting two semi-ring pipe seats and multiple jet nozzles, enables inert gas to be evenly sprayed from the inside of the casting port into the casting cavity, forming an all-round protective air curtain without dead angles. This effectively isolates the air from contact with the high-temperature molten titanium-containing material, significantly reduces the oxidation rate of titanium, and solves the problem of protection dead angles in traditional inert gas protection devices.

[0020] 2. This utility model is equipped with a sealing and dustproof component. Before pouring, the pouring port is sealed and protected by a sealing cover and a dustproof ring to prevent dust and other impurities from entering the mold cavity. During the pouring process, it is combined with inert gas protection to form double protection. The sealing cover adopts a detachable design for convenient operation. The use of polytetrafluoroethylene high-temperature resistant sealing gaskets ensures the sealing reliability in high-temperature environments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a structural schematic diagram showing a partial cross-section of the structure in this application; Figure 3 This is a schematic diagram of the inert gas protection assembly of this application; Figure 4 This is a cross-sectional structural diagram of the sealing and dustproof component of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. Main body of the tooling; 2. Support leg; 3. Pouring port; 4. Inert gas protection component; 41. Semi-ring pipe seat; 42. Air nozzle; 43. Diverter pipe; 44. Main gas pipe; 45. Gas storage tank; 46. Pressure regulating valve; 47. Flow meter; 5. Sealing and dustproof component; 51. Connecting pipe seat; 52. Dustproof ring; 53. Sealing cap; 54. High-temperature resistant polytetrafluoroethylene sealing gasket; 55. Handle; 56. Silicone sleeve; 57. Anti-slip protrusion; 6. Rubber anti-slip foot pad. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 The present invention provides the following technical solution: a titanium-containing casting fixture to prevent titanium oxidation, comprising a fixture body 1, supporting legs 2 symmetrically and fixedly connected to the lower part of the fixture body 1, a casting port 3 in the middle of the fixture body 1, inert gas protection components 4 on both sides inside the casting port 3, and a sealing dustproof component 5 above the casting port 3. The inert gas protection component 4 includes a semi-ring pipe seat 41, which is fixedly connected to the inner wall of the pouring port 3. One end of the semi-ring pipe seat 41 is fixedly connected to a jet nozzle 42 in a semi-ring shape, and the other end of the semi-ring pipe seat 41 is fixedly connected to a diversion pipe 43. One end of the diversion pipe 43 is fixedly connected to a gas transmission main pipe 44, and one end of the gas transmission main pipe 44 is fixedly connected to a gas storage tank 45.

[0025] Specifically, a pressure regulating valve 46 and a flow meter 47 are installed on the main gas pipeline 44.

[0026] By adopting the above technical solution, the valve of the gas storage tank 45 is opened, and the pressure and flow rate of argon gas are adjusted by the pressure regulating valve 46 and the flow meter 47. Argon gas enters the semi-ring pipe seat 41 through the main gas supply pipe 44 and the branch pipe 43, and is sprayed into the casting cavity from the jet nozzle 42. The inert gas can evenly cover the casting area and form a stable protective gas curtain. The pressure regulating valve 46 and the flow meter 47 can accurately control the delivery pressure and flow rate of the inert gas according to the casting requirements, so as to avoid the splashing of molten material due to excessive gas pressure or insufficient protection due to insufficient pressure.

[0027] Specifically, the jet nozzle 42 sprays air towards the casting cavity inside the tooling body 1.

[0028] Specifically, a rubber anti-slip foot pad 6 is fixedly connected to the bottom of the support leg 2.

[0029] By adopting the above technical solution, the rubber anti-slip pad 6 is designed to provide an anti-slip effect.

[0030] Specifically, the sealing and dustproof assembly 5 includes a connecting pipe seat 51, which is fixedly connected to the middle of the upper part of the tooling body 1. A dustproof ring 52 is fixedly sleeved on the surface of the connecting pipe seat 51, and a sealing cover 53 is tightly inserted into the upper part of the connecting pipe seat 51. A polytetrafluoroethylene high-temperature resistant sealing gasket 54 is fixedly connected to the inner wall of the sealing cover 53.

[0031] By adopting the above technical solution, before pouring, the sealing cover 53 is placed on the connecting pipe seat 51 on the pouring port 3 by the handle 55, and the dustproof ring 52 and the polytetrafluoroethylene high temperature resistant sealing gasket 54 achieve sealing and dust prevention.

[0032] Specifically, a handle 55 is fixedly connected to the top of the sealing cover 53.

[0033] By adopting the above technical solution, the handle 55 is designed to make it easy to pick up and put down the sealing cover 53.

[0034] Specifically, a silicone sleeve 56 is fixedly fitted onto the surface of the handle 55.

[0035] By adopting the above technical solution, the silicone sleeve 56 achieves the effect of heat insulation and protection.

[0036] Specifically, the surface of the silicone sleeve 56 is surrounded and fixedly connected with anti-slip protrusions 57.

[0037] By adopting the above technical solution, the anti-slip protrusion 57 achieves the anti-slip effect.

[0038] The working principle and usage process of this utility model are as follows: This utility model is used for casting titanium-containing materials to prevent the oxidation of titanium. Before casting, the sealing cap 53 is placed on the connecting pipe seat 51 on the casting port 3 using the handle 55. The dustproof ring 52 and the polytetrafluoroethylene high-temperature resistant sealing gasket 54 achieve a seal and prevent dust. The valve of the gas storage tank 45 is opened, and the pressure and flow rate of argon gas are adjusted by the pressure regulating valve 46 and the flow meter 47. The argon gas enters the semi-ring pipe seat 41 through the main gas pipeline 44 and the branch pipe 43, and is sprayed into the casting cavity from the nozzle 42. The inert gas can evenly cover the casting cavity. The casting area forms a stable protective air curtain; the pressure regulating valve 46 and the flow meter 47 can precisely control the delivery pressure and flow rate of the inert gas according to the casting requirements, so as to avoid the splashing of molten material due to excessive gas pressure or insufficient protection due to insufficient pressure, and completely remove the air inside the cavity; open the sealing cover 53 and immediately inject the high-temperature molten titanium-containing material into the casting cavity from the casting port 3. Argon gas is continuously introduced for protection during the casting process; after the casting is completed, keep the argon gas inlet until the material cools to room temperature, close the gas storage tank 45, and demold after the product cools down.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for casting titanium-containing materials to prevent titanium oxidation, comprising a fixture body (1), wherein support legs (2) are symmetrically and fixedly connected to the lower part of the fixture body (1), and a casting port (3) is provided in the middle of the fixture body (1), characterized in that: An inert gas protection component (4) is provided on both sides inside the pouring port (3), and a sealing dustproof component (5) is provided above the pouring port (3). The inert gas protection component (4) includes a semi-ring pipe seat (41), which is fixedly connected to the inner wall of the pouring port (3). One end of the semi-ring pipe seat (41) is fixedly connected to a jet nozzle (42) in a semi-ring shape, and the other end of the semi-ring pipe seat (41) is fixedly connected to a diversion pipe (43). One end of the diversion pipe (43) is fixedly connected to a gas transmission main pipe (44), and one end of the gas transmission main pipe (44) is fixedly connected to a gas storage tank (45).

2. The fixture for preventing titanium oxidation during casting with titanium-containing material according to claim 1, characterized in that: A pressure regulating valve (46) and a flow meter (47) are installed on the main gas pipeline (44).

3. The fixture for preventing titanium oxidation during casting with titanium-containing material according to claim 1, characterized in that: The jet nozzle (42) is directed toward the casting cavity inside the tooling body (1).

4. The fixture for preventing titanium oxidation during casting with titanium-containing material according to claim 1, characterized in that: A rubber anti-slip pad (6) is fixedly connected to the lower part of the support leg (2).

5. The fixture for preventing titanium oxidation during casting with titanium-containing material according to claim 1, characterized in that: The sealing and dustproof assembly (5) includes a connecting pipe seat (51), which is fixedly connected to the middle of the upper part of the tooling body (1). A dustproof ring (52) is fixedly sleeved on the surface of the connecting pipe seat (51), and a sealing cover (53) is tightly inserted above the connecting pipe seat (51). A polytetrafluoroethylene high-temperature resistant sealing gasket (54) is fixedly connected to the inner wall of the sealing cover (53).

6. The fixture for preventing titanium oxidation during casting with titanium-containing material according to claim 5, characterized in that: A handle (55) is fixedly connected to the top of the sealing cover (53).

7. The fixture for preventing titanium oxidation during casting with titanium-containing material according to claim 6, characterized in that: A silicone sleeve (56) is fixedly fitted onto the surface of the handle (55).

8. The titanium-containing casting fixture for preventing titanium oxidation according to claim 7, characterized in that: The surface of the silicone sleeve (56) is surrounded and fixedly connected with anti-slip protrusions (57).

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