CN211504943U - A mould for preparing tensile test sample - Google Patents
A mould for preparing tensile test sample Download PDFInfo
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- CN211504943U CN211504943U CN201922447758.0U CN201922447758U CN211504943U CN 211504943 U CN211504943 U CN 211504943U CN 201922447758 U CN201922447758 U CN 201922447758U CN 211504943 U CN211504943 U CN 211504943U
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Abstract
The utility model relates to a mould for preparing tensile test sample, including first mould and second mould. The first die is provided with a first die cavity, a first half bulge is formed in the first die cavity and is in a long strip shape, the first half bulge comprises a trapezoidal first part and two second parts arranged on one bottom edge of the trapezoid of the first part, and the second parts are in long strip shapes; a second die cavity is formed in the second die and is a cavity adaptive to the first die cavity in size; the first mold and the second mold form a shell when the molds are closed, the shell forms a precoated sand mold after sand shooting, the precoated sand mold is used for pouring a casting suitable for testing the tensile force of the tensile force testing machine, and the casting is adapted to the first half bulge. The utility model discloses to only pour into a mould with the tectorial membrane sand mould of quick tensile sample and the tectorial membrane sand mould of making other foundry goods together, can obtain the pulling force condition with criticizing other foundry goods.
Description
Technical Field
The utility model relates to a tectorial membrane sand field especially relates to a mould for preparing tensile test sample.
Background
The technology for making the core by using the precoated sand comprises the steps of blowing the mixed precoated sand into a metal mold cavity heated to the temperature of 250-280 ℃ by using a core shooting machine under pressure, softening and melting phenolic resin through the action of heat conduction, then solidifying, and hardening and caking the sand mold into a shell shape, so the sand mold is also called shell mold sand molding. The precoated sand is the molding sand or core sand with a layer of solid resin film coated on the surface of the sand, and a casting mold shell (or a mold core) formed by the precoated sand molding process has the advantages of no delamination, good thermal stability, good thermal conductivity and the like.
At present, casting products produced by pouring of some precoated sand molds are too large or too small or have peculiar shapes, so that tension tests are difficult to perform on a tension testing machine, and quality control management is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, pouring are convenient be used for preparing tensile test sample's mould.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a mould for preparing tensile test sample, include:
the first die is provided with a first die cavity, a first half bulge is formed in the first die cavity, the first half bulge is in a long strip shape, the first half bulge comprises a trapezoidal first part and two second parts arranged on one bottom edge of the trapezoid of the first part, and the second parts are in long strip shapes;
the second die is provided with a second die cavity, and the second die cavity is a cavity with the size matched with that of the first die cavity;
the first mold and the second mold form a shell when the molds are closed, the shell forms a precoated sand mold after sand shooting, the precoated sand mold is used for pouring a casting suitable for testing the tensile force of a tensile force testing machine, and the casting is adapted to the first half bulge.
Furthermore, a first half sand shooting port is formed in the first mold in the direction perpendicular to the length direction of the first half bulge, a second half sand shooting port is formed in the position, corresponding to the second mold, of the second mold, after the molds are closed, the first half sand shooting port in the first mold and the second half sand shooting port in the second mold are combined to form a sand shooting port, and the sand shooting port is communicated with the shell.
Furthermore, the inner side of the first die is provided with a positioning pin, the inner side of the second die is provided with a positioning groove, and the positioning pin is clamped in the positioning groove during die assembly.
Further, the connecting plate is further included, a first screw hole is formed in the outer side of the first die, a second screw hole is formed in the outer side of the second die, and the connecting plate connects the first die with the second die through the first screw hole and the second screw hole.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model discloses a mould for preparing tensile test sample because other foundry goods are too big or undersize usually, and the less suitable tensile test machine carries out the tensile test, so need the preparation can be applicable to the quick tensile sample of tensile test machine, needs promptly and this quick tensile sample assorted tectorial membrane sand mould. And pouring the precoated sand mold only using the quick tensile sample and the precoated sand mold for manufacturing other castings together to obtain the tension conditions of other castings in the same batch.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of a first mold cavity of a mold for preparing a tensile test specimen according to one embodiment of the present invention;
fig. 2 is a sectional view of fig. 1.
Wherein the reference numerals are as follows:
1. a first mold cavity; 2. a first half-bulge; 3. a first portion; 4. a second portion.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
A mold for preparing a tensile test specimen includes a first mold 1 and a second mold. The first mold is provided with a first mold cavity 1, the second mold is provided with a second mold cavity, a shell is formed inside the first mold and the second mold when the first mold and the second mold are closed, the shell forms a precoated sand mold after sand shooting, the precoated sand mold is used for pouring a casting suitable for testing tension of a tension tester, and the casting is matched with the first half bulge 2.
As shown in fig. 1 and 2, a first half bulge 2 is formed in the first mold cavity 1, the first half bulge 2 is in a long strip shape, the first half bulge 2 comprises a first part 3 in a trapezoid shape and two second parts 4 arranged on one bottom edge of the trapezoid of the first part 3, and the second parts 4 are in a long strip shape;
the second die cavity is a rectangular cavity which is adaptive to the size of the first die cavity 1.
And after the die is closed, the first half sand shooting port on the first die and the second half sand shooting port on the second die are combined into a sand shooting port, and the sand shooting port is communicated with the shell.
The inner side of the first die is provided with a positioning pin, the inner side of the second die is provided with a positioning groove, and the positioning pin is clamped in the positioning groove during die assembly.
The connecting plate is connected with the first die and the second die through the first screw hole and the second screw hole.
When the mold is closed, the sand shooting port formed by the first mold and the second mold corresponds to the sand shooting port of the core shooting machine, then the core shooting machine shoots the coated sand into the shell formed during closing the mold, the coated sand mold matched with the first half bulge 2 is formed, and the coated sand mold is used for casting to form the quick tensile sample suitable for the tensile testing machine. Because other castings are usually too large or too small and are not suitable for a tension tester to carry out tension test, a rapid tension sample which can be suitable for the tension tester needs to be manufactured, namely a precoated sand mold matched with the rapid tension sample needs to be manufactured. The precoated sand mold only using the rapid tensile sample and the precoated sand molds for manufacturing other castings are poured in the same batch, and the tensile conditions of the other castings in the same batch can be obtained by unifying the pouring temperature and the unpacking time.
The embodiment can obtain the mechanical property data of the first batch of products before the second batch of products comes out, and effectively guide the subsequent production.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (4)
1. A mold for preparing a tensile test specimen, comprising:
the first die is provided with a first die cavity, a first half bulge is formed in the first die cavity, the first half bulge is in a long strip shape, the first half bulge comprises a trapezoidal first part and two second parts arranged on one bottom edge of the trapezoid of the first part, and the second parts are in long strip shapes;
the second die is provided with a second die cavity, and the second die cavity is a cavity with the size matched with that of the first die cavity;
the first mold and the second mold form a shell when the molds are closed, the shell forms a precoated sand mold after sand shooting, the precoated sand mold is used for pouring a casting suitable for testing the tensile force of a tensile force testing machine, and the casting is adapted to the first half bulge.
2. The mold for preparing a tensile test specimen according to claim 1, wherein: and after the die is closed, the first half sand shooting port on the first die and the second half sand shooting port on the second die are combined into a sand shooting port, and the sand shooting port is communicated with the shell.
3. The mold for preparing a tensile test specimen according to claim 1, wherein: the inner side of the first die is provided with a positioning pin, the inner side of the second die is provided with a positioning groove, and the positioning pin is clamped in the positioning groove during die assembly.
4. The mold for preparing a tensile test specimen according to claim 1, wherein: the connecting plate is connected with the first die and the second die through the first screw hole and the second screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922447758.0U CN211504943U (en) | 2019-12-30 | 2019-12-30 | A mould for preparing tensile test sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922447758.0U CN211504943U (en) | 2019-12-30 | 2019-12-30 | A mould for preparing tensile test sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211504943U true CN211504943U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922447758.0U Active CN211504943U (en) | 2019-12-30 | 2019-12-30 | A mould for preparing tensile test sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211504943U (en) |
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2019
- 2019-12-30 CN CN201922447758.0U patent/CN211504943U/en active Active
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