CN111468676A - Preparation method of integral wax mold of large-scale closed annular casing casting - Google Patents
Preparation method of integral wax mold of large-scale closed annular casing casting Download PDFInfo
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- CN111468676A CN111468676A CN202010424633.0A CN202010424633A CN111468676A CN 111468676 A CN111468676 A CN 111468676A CN 202010424633 A CN202010424633 A CN 202010424633A CN 111468676 A CN111468676 A CN 111468676A
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- wax
- integral
- casing casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
Abstract
The invention provides a method for preparing an integral wax mold of a large-scale closed annular casing casting, which comprises the following steps: preparing a plurality of arc-shaped wax element units by using wax materials through a wax injection machine according to the shape characteristics of a closed annular casing casting, and then sequentially bonding all the arc-shaped wax element units end to form an integral wax mold. By adopting the technical scheme of the invention, the manufacturing difficulty of the integral wax mould is reduced, the preparation process is simplified, the manufacturing cost of the integral wax mould is reduced, the economic benefit of enterprises is improved, in addition, the flatness of the integral wax mould is ensured by placing the arc-shaped wax piece units on the positioning substrate for splicing and bonding, the shape and the size of the integral wax mould are ensured by using the plurality of correction sliding blocks and the locking blocks to correct the appearance and the shape of the integral wax mould, and a foundation is laid for improving the casting forming quality of large-scale closed annular casing castings.
Description
Technical Field
The invention relates to the technical field of investment casting technology, in particular to a preparation method of an integral wax mold of a large-scale closed annular casing casting.
Background
With the continuous development of machining and manufacturing technologies, people have higher and higher requirements on mechanical part products, the shapes and structures of the mechanical part products manufactured through machining are increasingly diversified, the mechanical part products with diversified shapes are usually manufactured through investment casting molding, for large closed annular casing castings with large outline dimensions, wax molds with corresponding large outline dimensions need to be prepared firstly before investment casting molding is carried out, namely, corresponding large wax injection machines are needed to complete preparation of corresponding wax molds, however, the large wax injection machines are expensive, the large wax injection machines are difficult to popularize in existing small and medium-sized production enterprises, and the casting molding production process flow of the casing castings is difficult.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for preparing an integral wax mold of a large-scale closed annular casing casting.
The invention is realized by the following technical scheme.
The invention provides a preparation method of an integral wax mold of a large-scale closed annular casing casting, which comprises the following steps:
preparing a plurality of arc-shaped wax element units by using wax materials through a wax injection machine according to the shape characteristics of a closed annular casing casting, and then sequentially bonding all the arc-shaped wax element units end to form an integral wax mold.
The preparation method of the large-scale closed annular casing casting integral wax mold further comprises the following steps:
providing a positioning substrate, placing all the arc-shaped wax element units on the positioning substrate, taking the surface of the positioning substrate as a reference, and then sequentially adhering all the arc-shaped wax element units end to form an integral wax mold.
The positioning substrate is made of metal.
The manufacturing method of the large-scale closed annular casing casting integral wax mold comprises the following steps of:
after all the arc-shaped wax element units are sequentially bonded end to form the integral wax mold, the correcting slide block is moved to be abutted against the outer surface of the integral wax mold to correct the shape of the integral wax mold.
The number of the positioning grooves is 3-8, and all the positioning grooves are uniformly arranged in a circumferential array by taking the shape center of the positioning substrate as a rotation center.
The positioning substrate is fixedly connected with one end of a locking screw, the other end of the locking screw is connected with a locking nut in a threaded mode, a locking block is further sleeved on the locking screw and arranged between the positioning substrate and the locking nut, and the method for preparing the integral wax mold of the large-scale closed annular casing casting further comprises the following steps:
when the overall shape of the wax mould is corrected, the locking block is pressed against the edge of the overall wax mould by screwing the locking nut.
The shape of the locking block is 'L'.
The number of the locking blocks is 3-8, and all the locking blocks are uniformly arranged in a circumferential array by taking the shape center of the positioning substrate as a rotation center.
The rated output wax material volume of the wax injection machine is 37L.
The number of the arc-shaped wax element units is 8.
The invention has the beneficial effects that: by adopting the technical scheme of the invention, the arc-shaped wax element units are prepared by adopting the small and medium-sized wax injector, and then all the arc-shaped wax element units are sequentially bonded end to form the integral wax mould, so that the manufacturing difficulty of the integral wax mould is reduced, the preparation process is simplified, the manufacturing cost of the integral wax mould is reduced, and the economic benefit of enterprises is improved.
Drawings
FIG. 1 is a top view of the connection structure of the integral wax mold, the positioning substrate, the locking screw, the locking nut and the locking block of the present invention;
FIG. 2 is a schematic view of the connection structure of the integral wax mold, the positioning substrate, the locking screw, the locking nut and the locking block of the present invention;
FIG. 3 is a schematic view of the connection structure of the integral wax pattern, the positioning substrate and the rectification slide block.
In the figure: 1-integral wax mould, 2-positioning base plate, 3-positioning groove, 4-correcting slide block, 5-locking screw, 6-locking nut and 7-locking block.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1, 2 and 3, the invention provides a method for preparing a large closed ring casing casting integral wax mold, which comprises the following steps:
according to the shape characteristics of a closed annular casing casting, a wax material is used for preparing a plurality of arc-shaped wax element units through a wax injection machine, and all the arc-shaped wax element units are sequentially bonded end to form an integral wax mold 1.
Further, the preparation method of the integral wax mold for the large-scale closed annular casing casting further comprises the following steps:
providing a positioning substrate 2, placing all the arc-shaped wax element units on the positioning substrate 2, and sequentially adhering the arc-shaped wax element units end to form an integral wax mold 1 by taking the surface of the positioning substrate 2 as a reference. The positioning substrate 2 is preferably made of metal. By adopting the technical scheme of the invention, all the arc-shaped wax element units are placed on the positioning base plate 2, the surface of the positioning base plate 2 is taken as a reference, and then all the arc-shaped wax element units are sequentially bonded end to form the integral wax mold 1, so that the flatness of the assembled integral wax mold is ensured, and a foundation is laid for improving the casting quality.
In addition, the positioning substrate 2 is disc-shaped, the positioning substrate 2 is provided with a positioning groove 3 arranged along the radial direction of the positioning substrate, a correcting slide block 4 is sleeved in the positioning groove 3, and the preparation method of the large-scale closed annular casing casting integral wax mold further comprises the following steps:
after all the arc-shaped wax element units are sequentially bonded end to form the integral wax mould 1, the shape of the integral wax mould 1 is corrected by moving the correcting slide block 4 to enable the correcting slide block to be abutted against the outer surface of the integral wax mould 1. It is preferable that the number of the positioning grooves 3 is 3 to 8, and all the positioning grooves 3 are uniformly arranged in a circumferential array with the center of the shape of the positioning base plate 2 as the center of rotation.
Further, the positioning substrate 2 is fixedly connected with one end of a locking screw rod 5, the other end of the locking screw rod 5 is connected with a locking nut 6 in a threaded mode, a locking block 7 is further sleeved on the locking screw rod 5, the locking block 7 is arranged between the positioning substrate 2 and the locking nut 6, and the method for preparing the large-scale closed annular casing casting integral wax mold further comprises the following steps:
when the overall shape of the integral wax mold 1 is corrected, the locking blocks 7 are pressed against the edge of the integral wax mold 1 by screwing the locking nuts 6, the shape of the locking blocks 7 is preferably in a shape of L, the number of the locking blocks 7 is 3-8, and all the locking blocks 7 are uniformly arranged in a circumferential array by taking the shape center of the positioning substrate 2 as the rotation center.
In addition, the rated output wax volume of the wax injector is 37L, and the number of the arc-shaped wax element units is 8.
By adopting the technical scheme of the invention, the arc-shaped wax element units are prepared by adopting a small and medium-sized wax injector, and then all the arc-shaped wax element units are sequentially bonded end to form the integral wax mold 1, so that the manufacturing difficulty of the integral wax mold 1 is reduced, the preparation process is simplified, the manufacturing cost of the integral wax mold 1 is reduced, and the economic benefit of enterprises is improved.
Claims (10)
1. A preparation method of a large-scale closed annular casing casting integral wax mold is characterized by comprising the following steps: the method comprises the following steps:
according to the shape characteristics of a closed annular casing casting, a wax material is used for preparing a plurality of arc-shaped wax element units through a wax injection machine, and all the arc-shaped wax element units are sequentially bonded end to form an integral wax mold (1).
2. The method for preparing the large-scale closed-loop casing casting integral wax mold as claimed in claim 1, wherein the method comprises the following steps: the preparation method of the large-scale closed annular casing casting integral wax mold further comprises the following steps:
providing a positioning substrate (2), placing all arc-shaped wax element units on the positioning substrate (2), and sequentially adhering the arc-shaped wax element units end to form an integral wax mold (1) by taking the surface of the positioning substrate (2) as a reference.
3. The method for preparing the large-scale closed annular casing casting integral wax mold as claimed in claim 2, wherein the method comprises the following steps: the positioning substrate (2) is made of metal.
4. The method for preparing the large-scale closed-loop casing casting integral wax mold as claimed in claim 1, wherein the method comprises the following steps: the preparation method of the large-scale closed annular casing casting integral wax mold comprises the following steps of:
after all the arc-shaped wax element units are sequentially bonded end to form the integral wax mould (1), the shape of the integral wax mould (1) is corrected by moving the correcting slide block (4) to enable the correcting slide block to be abutted against the outer surface of the integral wax mould (1).
5. The method for preparing the large-scale closed-loop casing casting integral wax mold as claimed in claim 4, wherein the method comprises the following steps: the number of the positioning grooves (3) is 3-8, and all the positioning grooves (3) are uniformly arranged in a circumferential array by taking the shape center of the positioning substrate (2) as a rotation center.
6. The method for preparing the large-scale closed-loop casing casting integral wax mold as claimed in claim 4, wherein the method comprises the following steps: the positioning substrate (2) is fixedly connected with one end of a locking screw (5), the other end of the locking screw (5) is connected with a locking nut (6) in a threaded mode, a locking block (7) is further sleeved on the locking screw (5), the locking block (7) is arranged between the positioning substrate (2) and the locking nut (6), and the method for preparing the large-scale closed annular casing casting integral wax mold further comprises the following steps:
when the shape of the integral wax mould (1) is corrected, the locking block (7) is pressed against the edge of the integral wax mould (1) by screwing the locking nut (6).
7. The preparation method of the large-scale closed annular casing casting integral wax mold according to claim 6, characterized in that the shape of the locking block (7) is L.
8. The method for preparing the large-scale closed-loop casing casting integral wax mold as claimed in claim 6, wherein the method comprises the following steps: the number of the locking blocks (7) is 3-8, and all the locking blocks (7) are uniformly arranged in a circumferential array by taking the shape center of the positioning substrate (2) as a rotation center.
9. The method for preparing the large-scale closed-loop casing casting integral wax mold according to claim 1, wherein the rated output wax volume of the wax injection machine is 37L.
10. The method for preparing the large-scale closed-loop casing casting integral wax mold as claimed in claim 1, wherein the method comprises the following steps: the number of the arc-shaped wax element units is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010424633.0A CN111468676A (en) | 2020-05-19 | 2020-05-19 | Preparation method of integral wax mold of large-scale closed annular casing casting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010424633.0A CN111468676A (en) | 2020-05-19 | 2020-05-19 | Preparation method of integral wax mold of large-scale closed annular casing casting |
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| CN111468676A true CN111468676A (en) | 2020-07-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523182A (en) * | 2021-07-19 | 2021-10-22 | 江苏图南合金股份有限公司 | Large-scale complex structure multilayer annular casting wax mold manufacturing method and fixture |
| CN113600746A (en) * | 2021-08-23 | 2021-11-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Split combined type large thin-wall bearing casing wax mold |
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2020
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| CN105290327A (en) * | 2015-11-11 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for controlling wave pattern deformation of large complex integral casting cartridge receiver |
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Cited By (3)
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|---|---|---|---|---|
| CN113523182A (en) * | 2021-07-19 | 2021-10-22 | 江苏图南合金股份有限公司 | Large-scale complex structure multilayer annular casting wax mold manufacturing method and fixture |
| CN113523182B (en) * | 2021-07-19 | 2022-08-30 | 江苏图南合金股份有限公司 | Large-scale complex structure multilayer annular casting wax mold manufacturing method and fixture |
| CN113600746A (en) * | 2021-08-23 | 2021-11-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Split combined type large thin-wall bearing casing wax mold |
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Application publication date: 20200731 |
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