Hot isostatic pressing tool for titanium alloy casting of cylindrical structure

Abstract

The utility model relates to a hot isostatic pressing tool for a titanium alloy casting with a cylindrical structure, which belongs to the technical field of titanium alloy investment precision casting, and comprises a casting main body arranged in a hearth, and a positioning tool is arranged on the outer side of the casting main body; the positioning tool comprises a positioning ring, a supporting ring is arranged on the inner side of the positioning ring, and a support is fixedly connected to the bottom of the positioning ring; a casting base is arranged at the bottom of the casting body and matched with the positioning tool. According to the hot isostatic pressing tool for the titanium alloy casting of the cylindrical structure, through the use of the tool, the charging mode of the tool is effectively changed, the space of a hot isostatic pressing furnace is effectively utilized, the effective area of the supporting face is adjusted, the titanium alloy castings of different cylindrical sizes can be placed, the charging amount under the same equipment condition is increased, and the working efficiency is improved. And the heat treatment cost borne by a single casting is reduced, and the cost can be effectively reduced and the efficiency can be effectively improved by designing the tool.

Description

Technical Field

[0001] The utility model relates to the technical field of titanium alloy investment precision casting, in particular to a hot isostatic pressing tool for cylindrical titanium alloy castings. Background Art

[0002] The main advantages of sand casting for titanium alloy castings are low cost and short production cycles. Most cylindrical titanium alloy castings are also sand cast. However, the current hot isostatic pressing furnace loading method used in large-scale production of a single product seriously affects the cost and production cycle of the sand mold manufacturing process.

[0003] Hot isostatic pressing (HIP) is an advanced material processing technology that is widely used in the preparation and processing of metals, ceramics, plastics and other materials. It is an indispensable means for the production of high-performance materials and the development of new materials. However, my country started late in developing HIP technology, and large-scale HIP equipment is subject to foreign procurement restrictions. The furnace cavity of HIP requires long periods of high temperature and high pressure. The limited capacity of domestic manufacturing equipment has led to the small size of the furnace of the currently manufactured mature HIP equipment. Therefore, it is a barrier to the heat treatment of large quantities of cylindrical structure castings.

[0004] The hot isostatic pressing (HIP) charging tooling currently used cannot meet the requirements of large-scale loading, as well as the time required for small-batch loading to the final discharge, which seriously affects its production cycle. The heat treatment cost allocated to each piece also exceeds its production cost. For example, according to the loading requirements of titanium alloy castings in the HIP furnace and its steamer-type placement tooling, one furnace can only be allowed to load three cylindrical titanium alloy castings, and the loading capacity seriously affects the production efficiency of batch castings. Therefore, in order to fully utilize the furnace to load more castings in a limited space, it is necessary to specially design and manufacture a set of hot isostatic pressing tooling for large cylindrical castings. Therefore, a HIP tooling for cylindrical titanium alloy castings is proposed to solve the above-mentioned problems. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a hot isostatic pressing tooling for cylindrical titanium alloy castings, which effectively changes the furnace loading method and effectively utilizes the space of the hot isostatic pressing furnace. The effective area of ​​the support surface can be adjusted to place titanium alloy castings of different cylindrical sizes, thereby increasing the furnace loading capacity under the same equipment conditions and reducing the heat treatment costs borne by a single casting. The design of the tooling can effectively reduce costs and increase efficiency, thereby solving the problems raised above.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a hot isostatic pressing tool for a cylindrical titanium alloy casting, comprising a casting body arranged inside a furnace, and a positioning tool provided on the outside of the casting body;

[0007] The positioning fixture includes a positioning ring, a support ring is provided on the inner side of the positioning ring, and a bracket is fixedly connected to the bottom of the positioning ring;

[0008] A casting base is provided at the bottom of the casting body, and the casting base cooperates with the positioning tooling.

[0009] Furthermore, the number of the casting bodies is set to six groups, and the six groups of casting bodies are stacked up and down in sequence.

[0010] Furthermore, the number of the positioning tooling is set to six groups, and the six groups of positioning tooling are stacked up and down in sequence.

[0011] Furthermore, a reinforcing rod is fixedly connected to the inner side of the bracket, and the reinforcing rod is made of heat-resistant steel.

[0012] Furthermore, the bottom surface of the casting base is matched with the top surface of the support ring, and the bottom side wall of the casting base is matched with the inner wall of the positioning ring.

[0013] Furthermore, the support ring is fixedly welded to the inner side of the positioning ring.

[0014] Furthermore, the outer side of the positioning ring is adapted to the inner wall of the furnace.

[0015] Compared with the prior art, the present invention provides a hot isostatic pressing tool for cylindrical titanium alloy castings, which has the following beneficial effects:

[0016] The hot isostatic pressing tooling for cylindrical titanium alloy castings is designed with a support ring that can completely cover the bottom surface of the casting body, so as to meet the placement requirements of most products involved. The bracket is welded and reinforced with a reinforcing rod made of heat-resistant steel, which can effectively support the overall weight of the casting body and the tooling. If deformation occurs during later use, the deformed area can be re-welded, which is beneficial to its repeatability. The support ring ensures the flatness of the placed castings. Then, one positioning tooling is placed according to one casting body. After the entire body is placed, it is directly hoisted to the lifting platform of the hot isostatic pressing furnace for loading and heat treatment. The support ring can be adjusted according to the size of the casting, and the height of the bracket can also be increased or decreased according to the size and height of the casting body. Through the use of the tooling, its loading method is effectively changed, and the space of the hot isostatic pressing furnace is effectively utilized. The effective area of ​​the support surface can be adjusted to accommodate titanium alloy castings of different cylindrical sizes, thereby increasing the loading capacity under the same equipment conditions and reducing the heat treatment cost borne by a single casting. The designed tooling can effectively reduce costs and increase efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 2This is a schematic diagram of the structure stacking of the positioning tooling of the utility model;

[0019] Figure 3 This is a schematic diagram of a single structure of the positioning tool of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure stacking of the casting body of the utility model;

[0021] Figure 5 This is a schematic diagram of a single structure of the casting body of the utility model.

[0022] In the figure: 1. furnace; 2. casting body; 3. positioning tool; 301. positioning ring; 302. support ring; 303. bracket; 304. reinforcement rod; 4. casting base. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 5 In this embodiment, a hot isostatic pressing tool for a cylindrical titanium alloy casting includes a casting body 2 arranged inside a furnace 1, and a positioning tool 3 is provided on the outside of the casting body 2.

[0025] Among them, the number of casting bodies 2 is set to six groups, and the six groups of casting bodies 2 are stacked up and down in sequence. The number of positioning tooling 3 is set to six groups, and the six groups of positioning tooling 3 are stacked up and down in sequence. Six casting bodies 2 with similar cylindrical structures can be fully loaded into the furnace 1.

[0026] In this embodiment, the positioning tool 3 includes a positioning ring 301, the outer side of the positioning ring 301 is adapted to the inner wall of the furnace 1, and a support ring 302 is provided on the inner side of the positioning ring 301. The support ring 302 is fixedly welded to the inner side of the positioning ring 301, and the bottom of the positioning ring 301 is fixedly connected to a bracket 303, wherein a casting base 4 is provided at the bottom of the casting body 2, and the casting base 4 cooperates with the positioning tool 3.

[0027] It should be noted that the bottom surface of the casting base 4 is adapted to the top surface of the support ring 302. The cooperation between the support ring 302 and the casting base 4 ensures the stable placement of the casting body 2. The bottom side wall of the casting base 4 is adapted to the inner wall of the positioning ring 301. The cooperation between the positioning ring 301 and the casting base 4 facilitates the positioning of the casting body 2 and avoids deviation of the internal position of the casting body 2 in the furnace 1.

[0028] It is understandable that the height of the bracket 303 can be increased or decreased according to the size and height of the casting body 2 .

[0029] It should be added that a hoisting hole may be welded on the lower portion of the support ring 302 , and hoisting is performed by inserting a pin into the hole.

[0030] It should be noted that a reinforcing rod 304 is fixedly connected to the inner side of the bracket 303. The reinforcing rod 304 is made of heat-resistant steel. The bracket 303 is reinforced by the reinforcing rod 304 made of heat-resistant steel, which can effectively support the overall weight of the casting body 2 and the tooling, thereby ensuring the stability of the structure.

[0031] The working principle of the above embodiment is:

[0032] When the present invention is in use, the support ring 302 is designed to completely cover the bottom surface of the casting body 2, so as to meet the placement requirements of most products involved. The bracket 303 is welded and reinforced by a reinforcing rod 304 made of heat-resistant steel, which can effectively support the overall weight of the casting body 2 and the tooling. If it is deformed during later use, the deformed area can be re-welded, which is beneficial to its repeatability. The support ring 302 ensures the flatness of the casting, and then places it according to one casting body 2 and one positioning tooling 3. After the overall placement is completed, it is directly hoisted onto the lifting platform of the hot isostatic pressing furnace for furnace loading and heat treatment. The support ring 302 can be adjusted according to the size of the casting, and the height of the bracket 303 can also be increased or shortened according to the size and height of the casting body 2.

[0033] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical methods, and any method that can achieve its beneficial effects may be implemented. It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are intended only to facilitate the description of this application and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be understood as limiting this application.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0035] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot isostatic pressing tool for a cylindrical titanium alloy casting, comprising a casting body (2) arranged inside a furnace (1), characterized in that: A positioning tool (3) is provided on the outer side of the casting body (2); The positioning tool (3) comprises a positioning ring (301), a support ring (302) is provided on the inner side of the positioning ring (301), and a bracket (303) is fixedly connected to the bottom of the positioning ring (301); A casting base (4) is provided at the bottom of the casting body (2), and the casting base (4) cooperates with the positioning tool (3).

2. The hot isostatic pressing tool for cylindrical titanium alloy castings according to claim 1, characterized in that: The number of the casting bodies (2) is set to six groups, and the six groups of the casting bodies (2) are stacked up and down in sequence.

3. The hot isostatic pressing tool for cylindrical titanium alloy castings according to claim 1, characterized in that: The number of the positioning tools (3) is set to six groups, and the six groups of positioning tools (3) are stacked up and down in sequence.

4. The hot isostatic pressing tool for cylindrical titanium alloy castings according to claim 1, characterized in that: A reinforcing rod (304) is fixedly connected to the inner side of the bracket (303), and the reinforcing rod (304) is made of heat-resistant steel.

5. The hot isostatic pressing tool for cylindrical titanium alloy castings according to claim 1, characterized in that: The bottom surface of the casting base (4) is matched with the top surface of the support ring (302), and the bottom side wall of the casting base (4) is matched with the inner wall of the positioning ring (301).

6. The hot isostatic pressing tool for cylindrical titanium alloy castings according to claim 1, characterized in that: The support ring (302) is fixedly welded to the inner side of the positioning ring (301).

7. The hot isostatic pressing tool for cylindrical titanium alloy castings according to claim 1, characterized in that: The outer side of the positioning ring (301) is adapted to the inner wall of the furnace (1).

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