CN214263803U - Steel pipe casting mold - Google Patents
Steel pipe casting mold Download PDFInfo
- Publication number
- CN214263803U CN214263803U CN202022571841.1U CN202022571841U CN214263803U CN 214263803 U CN214263803 U CN 214263803U CN 202022571841 U CN202022571841 U CN 202022571841U CN 214263803 U CN214263803 U CN 214263803U
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- CN
- China
- Prior art keywords
- base
- pouring
- pipe
- hole
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 80
- 239000010959 steel Substances 0.000 title claims abstract description 80
- 238000005266 casting Methods 0.000 title claims abstract description 23
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 239000011819 refractory material Substances 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 abstract description 22
- 238000000034 method Methods 0.000 abstract description 8
- 230000008646 thermal stress Effects 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000007711 solidification Methods 0.000 abstract description 5
- 230000008023 solidification Effects 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 206010053615 Thermal burn Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a steel pipe casting mould, which comprises a base, a cylindrical external mould, a casting piece and a core mould, wherein the center of the base is provided with a connecting hole; the cylindrical outer mold can be arranged above the base; the perfusion part comprises a perfusion tube provided with a through cavity, the perfusion tube can be placed in the connecting hole and then connected with the base, and the perfusion hole in the perfusion tube is positioned above the base; the core mold is connected with the top of the filling pipe and is prepared from magnesia; after the cylindrical outer mold and the core mold are arranged above the base, the core mold and the cylindrical outer mold form a cavity. The utility model discloses a form the mandrel by the preparation of magnesia, make the mandrel drop automatically in the molten steel solidification process, reduced the drawing of patterns degree of difficulty of mandrel from the steel pipe, avoided among the prior art to the mandrel cooling drawing of patterns messenger molten steel temperature inhomogeneous and the inconsistent problem of outside surface thermal stress and the inside density of the steel pipe that leads to.
Description
Technical Field
The utility model relates to a steel pipe pouring technical field, concretely relates to steel pipe casting mold.
Background
After the hollow steel pipe is poured, the steel pipe is tightly attached to the mold, so that the demolding is difficult. In order to overcome the above problems, the mold is generally designed to have a shape with different sizes of the upper and lower ends, so that the steel pipe is relatively easy to demold, but the shape and size of the hollow steel pipe cast thereby are also affected by the shape of the mold to have a shape with different sizes of the upper and lower ends, thereby reducing the usable volume of the hollow steel pipe. Meanwhile, in the prior art, the core mold of the steel pipe is demoulded by cooling the core mold, and the way can lead the central part of the molten steel to disperse heat faster than the edge part, lead the temperature to be inconsistent in the molten steel cooling and solidifying process and finally lead the problems of inconsistent external surface thermal stress and internal density of the steel pipe.
SUMMERY OF THE UTILITY MODEL
The weak point that exists to above prior art, the utility model provides a make things convenient for the drawing of patterns and can avoid the surface thermal stress of the steel pipe prepared and make the unanimous steel pipe casting mold of density of steel pipe inside.
The utility model provides a steel pipe casting mold in one aspect, include:
the center of the base is provided with a connecting hole;
the cylindrical outer mold can be arranged above the base;
the pouring piece comprises a pouring pipe provided with a through cavity, the pouring pipe can be placed in the connecting hole and then connected with the base, and the pouring hole in the pouring pipe is positioned above the base;
the core die is connected with the top of the filling pipe and is prepared from magnesia;
after the cylindrical outer mold and the core mold are arranged above the base, a cavity is formed by the base, the core mold and the cylindrical outer mold.
Further, the perfusion tube is a conical tube, and a through cavity of the perfusion tube is connected with the core mold; the connecting hole on the base is a circular truncated cone hole, and the diameter of the circular truncated cone hole is gradually reduced from bottom to top; after the filling pipe is placed in the connecting hole, the outer wall of the filling pipe is in sealing connection with the hole wall of the connecting hole.
Furthermore, the filling pipe comprises a communicating cavity which is positioned in the center of the filling pipe, and the filling hole is positioned on the side wall of the filling pipe and is communicated with the communicating cavity.
Furthermore, be equipped with at least three on the filling tube lateral wall filling hole, each filling hole is the inclined hole that becomes 80 with the horizontal direction, just filling hole's bottom all with the intercommunication chamber intercommunication, filling hole's top all is located filling tube's lateral wall.
Further, a chassis is arranged below the base, a liquid inlet groove is formed in the chassis, and after the chassis is arranged below the base, a liquid inlet cavity communicated with the through cavity of the filling pipe is formed at the bottom of the liquid inlet groove and the bottom of the base.
Further, the base and the cylindrical outer die are made of castings, and the pouring piece is made of refractory materials.
The utility model provides a pair of steel pipe casting mold is connected with the base in the connecting hole through placing the filling pipe, and fills the top that the pipe is located the base, makes the molten steel flow in base, mandrel and the formed cavity of cylindric external mold from filling the pipe in, can avoid directly leading-in molten steel from the cavity top in the traditional approach to the scald of mould. Simultaneously, form the mandrel by magnesia preparation, make the mandrel in molten steel solidification process, automatic droing, and then reduced the drawing of patterns degree of difficulty of mandrel from the steel pipe, avoided among the prior art through make the molten steel temperature inhomogeneous and the inconsistent problem of molten steel solidification speed, the outer surface thermal stress of steel pipe and inside density that leads to the mandrel cooling drawing of patterns, consequently, through the utility model discloses an outside surface thermal stress and the density of the steel pipe that the mould was prepared are unanimous.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a steel pipe casting mold according to an exemplary embodiment of the present invention;
fig. 2 is a top view of a steel pipe casting mold according to an exemplary embodiment of the present invention;
fig. 3 is a schematic structural diagram of a base according to an exemplary embodiment of the present invention;
fig. 4 is a schematic structural view of a cylindrical outer mold according to an exemplary embodiment of the present invention;
fig. 5 is a schematic structural view of a core mold according to an exemplary embodiment of the present invention;
fig. 6 is a schematic structural view of an irrigation member according to an exemplary embodiment of the present invention.
In the figure:
1-a base;
2-cylindrical external mold;
3-filling a tube;
4-core mold;
5-connecting pipe;
6-connecting hole;
7-chassis.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be external to the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
The utility model provides a steel pipe casting mould, which is shown in figures 1 to 6 and comprises a base 1, a cylindrical external mould 2, a casting 3 and a core mould 4, wherein a connecting hole 6 is arranged at the central position of the base 1; the cylindrical outer mold 2 can be arranged above the base 1; the perfusion part comprises a perfusion tube 3 provided with a through cavity, and the perfusion tube 3 can be placed in the connecting hole 6 and then connected with the base 1, and a perfusion hole on the perfusion tube 3 is positioned above the base 1; the core mould 4 is connected with the top of the filling pipe 3, and the core mould 4 is prepared from magnesia; after the cylindrical outer mold 2 and the core mold 4 are placed above the base 1, the core mold 4 and the cylindrical outer mold 2 form a cavity.
The pouring pipe 3 is placed in the connecting hole 6 to be connected with the base 1, and the pouring pipe 3 is positioned above the base 1, so that the molten steel flows into a cavity formed by the base 1, the core mold 3 and the cylindrical outer mold 2 from the pouring pipe 3, and scalding of the mold caused by direct introduction of the molten steel from above the cavity in the traditional method can be avoided. Simultaneously, form mandrel 4 by the preparation of magnesia, make mandrel 4 in the molten steel solidification process, drop automatically, and then reduced the drawing of patterns degree of difficulty of mandrel 4 from the steel pipe, avoided among the prior art through 4 cooling drawing of patterns of mandrel make the molten steel temperature inhomogeneous and the inconsistent problem of molten steel solidification speed, the outside surface thermal stress and the inside density of steel pipe that lead to, consequently, through the utility model discloses an outside surface thermal stress and the inside density of the steel pipe that the mould was prepared are unanimous.
As a preferred embodiment, referring to fig. 6, the perfusion tube 3 is a conical tube, and the through cavity of the perfusion tube 3 is coaxial with the core mold; the connecting hole 6 on the base 1 is a circular truncated cone hole, and the diameter of the circular truncated cone hole is gradually reduced from bottom to top; after the perfusion tube 3 is placed in the connecting hole 6, the outer wall of the perfusion tube 3 is connected with the hole wall of the connecting hole 6 in a sealing way. In the embodiment, the pouring pipe 3 is preferably a conical pipe, the connecting hole 6 is preferably a circular truncated cone hole with the diameter gradually decreasing from bottom to top, and when the molten steel sequentially flows into the cavity formed by the base 1, the core mold 4 and the cylindrical outer mold 2 through the pouring pipe 3 and the pouring pipe 3, the pouring pipe 3 can be in close contact with the connecting hole 6 under the driving of the acting force of the molten steel, so that the stability of the pouring pipe 3 in the connecting hole 6 is ensured, and meanwhile, the sealing between the pouring pipe 3 and the connecting hole 6 is also ensured.
As a preferred embodiment, the perfusion tube 3 comprises a communication cavity which is positioned at the central position of the perfusion tube 3, and the perfusion hole is positioned on the side wall of the perfusion tube 3 and is communicated with the communication cavity. In the present embodiment, the molten steel flowing in from the pouring pipe 3 can flow out from the pouring hole through the communicating cavity on the pouring pipe 3, so that the molten steel is poured into the cavity formed by the base 1, the core mold 4 and the cylindrical outer mold 2 from the bottom of the mold, the temperature of the molten steel is slowly lowered in the pouring process, and further the scald of the molten steel to the mold is reduced, and preferably, the pouring pipe 3 is of an integrated structure.
Further, be equipped with at least three filling hole on the 3 lateral walls of filling pipe, each filling hole is the inclined hole that becomes 80 with the horizontal direction, and the bottommost end of filling hole all communicates with the intercommunication chamber, and the highest end of filling hole all is located the lateral wall of filling pipe 3. In the present embodiment, the pouring hole inclined at an angle of 80 ° to the horizontal direction is provided, so that the molten steel flowing out from the pouring hole can be rapidly mixed with the molten steel in the cavity formed by the base 1, the core mold 4, and the cylindrical outer mold 2, and further, the temperature of the molten steel in the cavity formed by the base 1, the core mold 4, and the cylindrical outer mold 2, the external surface thermal stress, and the internal density of the steel pipe are made uniform, thereby avoiding the problem of the difference in the external surface structure of the steel pipe due to the temperature unevenness.
As a preferred embodiment, a chassis 7 is further arranged below the base 1, a liquid inlet groove is arranged on the chassis 7, and after the chassis 7 is arranged below the base 1, a liquid inlet cavity communicated with the through cavity of the pouring pipe 3 is formed at the bottom of the liquid inlet groove and the base 1. The molten steel enters the through cavity of the pouring pipe 3 from the liquid inlet cavity formed by the liquid inlet groove and the bottom of the base 1, so that the molten steel enters the pouring pipe 3.
In a preferred embodiment, the top of the perfusion tube 3 is provided with a protrusion 5 which can be matched and connected with the bottom of the core mould 4, so as to realize the detachable connection between the perfusion tube 3 and the core mould 4. In this embodiment, the protrusions that can be connected with the bottom of the core mold 4 in a matching manner are arranged at the top of the pouring pipe 3, so that the core mold 4 can be conveniently connected with the pouring pipe 3, and the flexibility of connection between the pouring pipe 3 and the core mold 4 is increased.
As a preferred embodiment, the base 1, the cylindrical outer mold 2 are made of a cast part and the pouring member is made of a refractory material.
Use the utility model provides a pair of method of steel pipe casting mold pouring steel pipe, including following step:
s100, assembling the steel pipe casting mold to enable the base 1, the core mold 4 and the cylindrical outer mold 2 to form a cavity, wherein the core mold 4 and the cylindrical outer mold 2 are coaxially and hermetically arranged on the base 1;
s200, injecting molten steel into the pouring pipe 3 positioned on the base 1, so that the molten steel is poured into the cavity through the pouring pipe 3 positioned above the base 1;
s300, after the molten steel in the cavity is cooled and cooled to the room temperature, the molten steel is crystallized into a steel pipe;
and S400, removing the core mold 4 which is positioned at the center of the steel pipe and is separated from the steel pipe, and then removing the cylindrical outer mold 2 to finish the pouring of the steel pipe.
The utility model provides a steel pipe pouring method can obtain the hollow steel pipe that the end size equals about the pouring to improve hollow steel pipe's usable volume, simultaneously, when can reduce the drawing of patterns degree of difficulty to mandrel 4 through mandrel 4 that is formed by the preparation of magnesite, can also prepare out the unanimous hollow steel pipe of outside surface density.
As a preferred embodiment, when the molten steel is injected into the pouring pipe 3 located on the base 1, the temperature of the molten steel is 1470 ℃ and 1520 ℃.
As a preferred embodiment, when the molten steel in the cavity is cooled and cooled to the room temperature, the cooling rate of the molten steel is 30-50 ℃/s.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. A steel pipe casting mold, comprising:
the center of the base (1) is provided with a connecting hole (6);
the cylindrical outer mold (2) can be arranged above the base (1);
the pouring piece comprises a pouring pipe (3) provided with a through cavity, the pouring pipe (3) can be placed in the connecting hole (6) and then is connected with the base (1), and a pouring hole in the pouring pipe (3) is positioned above the base (1);
the core mold (4) is connected with the top of the filling pipe (3), and the core mold (4) is prepared from magnesia;
after the cylindrical outer die (2) and the core die (4) are arranged above the base (1), the core die (4) and the cylindrical outer die (2) form a cavity.
2. The steel pipe casting mold according to claim 1, wherein the pouring pipe (3) is a conical pipe, and a through cavity of the pouring pipe (3) is connected with the core mold (4); the connecting hole (6) on the base (1) is a circular truncated cone hole, and the diameter of the circular truncated cone hole is gradually reduced from bottom to top; after the filling pipe (3) is placed in the connecting hole (6), the outer wall of the filling pipe (3) is in sealing connection with the hole wall of the connecting hole (6).
3. The steel tube casting mold according to claim 1, wherein the pouring tube (3) comprises a communication cavity located at the center of the pouring tube (3), and the pouring hole is located on the side wall of the pouring tube (3) and is communicated with the communication cavity.
4. The steel pipe casting mold according to claim 3, wherein the side wall of the pouring pipe (3) is provided with at least three pouring holes, each pouring hole is an inclined hole forming an angle of 80 degrees with the horizontal direction, the bottom end of each pouring hole is communicated with the communication cavity, and the highest end of each pouring hole is located on the side wall of the pouring pipe (3).
5. The steel pipe casting mold according to claim 1, characterized in that a chassis (7) is further arranged below the base (1), a liquid inlet groove is arranged on the chassis (7), and after the chassis (7) is arranged below the base (1), the liquid inlet groove and the bottom of the base (1) form a liquid inlet cavity communicated with the through cavity of the casting pipe (3).
6. The steel pipe casting mold according to claim 1, wherein the base (1), the cylindrical outer mold (2) are made of a casting and the pouring member is made of a refractory material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022571841.1U CN214263803U (en) | 2020-11-09 | 2020-11-09 | Steel pipe casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022571841.1U CN214263803U (en) | 2020-11-09 | 2020-11-09 | Steel pipe casting mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214263803U true CN214263803U (en) | 2021-09-24 |
Family
ID=77773736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022571841.1U Expired - Fee Related CN214263803U (en) | 2020-11-09 | 2020-11-09 | Steel pipe casting mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214263803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112371927A (en) * | 2020-11-09 | 2021-02-19 | 陈德钦 | Steel pipe casting mold and casting method |
-
2020
- 2020-11-09 CN CN202022571841.1U patent/CN214263803U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112371927A (en) * | 2020-11-09 | 2021-02-19 | 陈德钦 | Steel pipe casting mold and casting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210924 |