CN214150083U - Simple tool for manufacturing test piece - Google Patents
Simple tool for manufacturing test piece Download PDFInfo
- Publication number
- CN214150083U CN214150083U CN202022800245.6U CN202022800245U CN214150083U CN 214150083 U CN214150083 U CN 214150083U CN 202022800245 U CN202022800245 U CN 202022800245U CN 214150083 U CN214150083 U CN 214150083U
- Authority
- CN
- China
- Prior art keywords
- die
- simple tool
- feeding chamber
- tool according
- test piece
- 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.)
- Active
Links
Images
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a simple and easy frock for making test piece from top to bottom includes: the test device comprises an upper die, a middle die, a lower die and one or more sample connecting pieces positioned between the middle die and the lower die; the upper part of the middle mold is provided with a feeding chamber, and the lower surface of the feeding chamber is provided with one or more injection holes penetrating through the middle mold; the inside first die cavity that is provided with of sample connecting piece, first die cavity set up in notes pressure hole below. The utility model discloses frock simple structure, the simple operation can guarantee the reliability that paste heat-insulating material injection moulding technology bonding test piece was made.
Description
Technical Field
The utility model relates to a test is with the preparation field of sample, especially relates to a simple and easy frock for making test piece.
Background
The paste heat-insulating material injection process is simple in operation, high in heat-insulating efficiency and reliable in heat-insulating effect, is gradually applied to the field of solid rocket engine heat insulation, and in order to test the mechanical property of the paste heat-insulating material under the injection process, according to the GB/T11211-2009/ISO814:2007 regulation, a bonding test piece with the diameter of 35-40 mm needs to be manufactured for characterization.
SUMMERY OF THE UTILITY MODEL
For solving the drawback of above-mentioned prior art, the utility model provides a simple and easy frock for making can reflect the bonding test piece of the true mechanical properties of heat insulation layer provides following technical scheme:
the utility model provides a simple and easy frock for making test piece, from top to bottom includes:
the test device comprises an upper die, a middle die, a lower die and one or more sample connecting pieces positioned between the middle die and the lower die;
the upper part of the middle die is provided with a feeding chamber, and the lower surface of the feeding chamber is provided with one or more injection holes penetrating through the middle die;
the inside first die cavity that is provided with of sample connecting piece, first die cavity sets up in notes pressure hole below.
Further, the lower part of the upper film is matched with the shape of the feeding chamber.
Further, the inner surface of the feeding chamber is a polytetrafluoroethylene layer.
Furthermore, a polytetrafluoroethylene layer is arranged at the contact part of the lower part of the upper die and the feeding chamber.
Furthermore, a positioning mechanism is arranged on the lower die.
Furthermore, fabrication holes are formed in two ends of the sample connecting piece, the positioning mechanism is a positioning pin, and the positioning pin penetrates through the fabrication holes to position the sample connecting piece.
Furthermore, a locking mechanism is arranged between the middle die and the lower die.
Further, the locking mechanism is a locking screw.
Furthermore, the contact parts of the lower surface of the middle die and the upper surface of the lower die and the sample connecting piece are provided with demoulding grooves.
By adopting the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses owing to adopt the insulating material to annotate the fashioned mode of pressure, the closely knit degree of heat insulation layer is higher in the bonding test piece of producing, is favorable to reflecting the real mechanical properties of heat insulation layer under the cream material notes pressure technology.
2. The utility model discloses simple structure, installation and use are all very simple and convenient, simultaneously because the setting of dowel and locking screw, can guarantee the stability of frock in the forming process, are favorable to the reliability of bonding test piece preparation.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present invention
Fig. 2 is a left side view of an embodiment of the present invention
The device comprises an upper die 1, a middle die 2, a lower die 3, a sample connecting piece 4, a feeding chamber 5, an injection hole 6, a first cavity 7, a process hole 8, a positioning pin 9, a demolding groove 10 and a locking screw 11.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
The paste heat insulating material is a common raw material for preparing a solid rocket heat insulating layer, the paste heat insulating material is mainly bonded in a solid rocket engine structure by adopting an injection molding process, the reliability of the bonding structure is very important for the safety performance of the solid rocket, in order to ensure the reliability of the bonding structure, a corresponding test piece needs to be prepared to test the bonding strength of a bonding interface, if a traditional direct extrusion mode is adopted in the manufacturing process of the test piece, most of the heat insulating material can be directly extruded out of a die due to stronger fluidity of the paste heat insulating material, so that the compactness of the heat insulating layer in the bonding test piece is not high, the test result of the bonding test piece is influenced, and the real mechanical property of the heat insulating layer under the injection molding process of the paste heat insulating material is difficult to reflect, based on the problem, the utility model discloses a simple tool for manufacturing the bonding test piece by adopting the injection molding process of the paste heat insulating material, the technical scheme is as follows:
a simple tool for manufacturing a test piece, as shown in figure 1, comprises an upper die 1, a middle die 2, a lower die 3 and one or more sample connecting pieces 4 positioned between the middle die 2 and the lower die 3 from top to bottom; the upper part of the middle die 2 is provided with a feeding chamber 5 for containing the paste-shaped heat-insulating material, the lower surface of the feeding chamber 5 is provided with one or more injection holes 6 penetrating through the middle die 2, and the size of the injection holes 6 can be designed according to the thickness of the paste-shaped heat-insulating material of the bonding test piece; the inside of the sample connecting piece 4 is provided with a first cavity 7 for accommodating heat insulation materials, and the first cavity 7 is arranged below the injection hole 6.
The utility model discloses a fashioned mode is annotated to paste heat insulating material, and the closely knit degree of heat insulation layer is higher in the bonding test piece of producing, is favorable to reflecting the real mechanical properties of heat insulation layer under the paste material notes pressure technology.
In one embodiment, the present invention has only one injection hole 6 and one sample connector 4, and can be used to make a bonding test piece.
In another embodiment, the utility model discloses can make a plurality of bonding test pieces simultaneously, wherein the quantity of notes pressure port 6 equals with the quantity of sample connecting piece 4.
Further, the lower part of the upper die 1 is matched with the charging chamber 5 in shape and plays a role in guiding in the die assembly process, and for convenience in use, the lower part of the upper die 1 can be arranged into an inverted circular truncated cone shape, and the charging chamber 5 is arranged into a matched concave shape.
In one embodiment, the inner surface of the feeding chamber 5 is coated with polytetrafluoroethylene, and the contact part of the lower part of the upper die 1 and the feeding chamber 5 is also coated with polytetrafluoroethylene, so that the paste-shaped heat insulating material is prevented from being bonded with the die, and the demolding between the upper die 1 and the middle die 2 after the bonding test piece is formed is facilitated.
In an embodiment, the utility model discloses be provided with positioning mechanism on the lower mould 3 for fix a position sample connecting piece 4, as shown in fig. 1, positioning mechanism can be for dowel 9, and dowel 9 lower part can be through transition fit embedding lower mould 3 on, and the fabrication hole 8 that the upper portion passed the setting of sample connecting piece 4 both ends is fixed a position sample connecting piece 4, prevents that well mould 2 and lower mould 3 from taking place the change and then influence the effect of notes pressure technology at compound die in-process sample connecting piece 4 position.
In an embodiment, the utility model discloses still be provided with locking mechanism between well mould 2 and the lower mould 3 for well mould 2 and lower mould 3 after the compound die locks, as shown in fig. 2, locking mechanism can be locking screw 11, and well mould 2 and lower mould 3 compound die back locking screw 11 run through well mould 2 and lower mould 3 and lock, prevent to annotate the in-process paste thermal insulation material and flow into the mould clearance in a large number to well mould 2 and lower mould 3 separate.
In one embodiment, as shown in fig. 1, the contact part between the lower surface of the middle mold 2 and the upper surface of the lower mold 3 of the present invention and the sample connecting member 4 is provided with a mold releasing groove 10, which is convenient for taking out the bonding test piece after the molding is finished.
The utility model discloses an each part can adopt the metal material through thermal treatment to make, is favorable to strengthening the intensity of metal material itself, prevents that the frock structure from becoming invalid.
The utility model also discloses a use method of this simple and easy frock:
1. carrying out sand blasting treatment on the surface of the sample connecting piece 4;
2. coating an adhesive on the surface of the sample connecting piece 4 subjected to sand blasting;
3. installing a positioning pin 9 on the lower die 3;
4. placing the sample connecting piece 4 on the lower die 3, and positioning through a positioning pin 9;
5. mounting the middle die 2 on the lower die 3, and fixing the middle die by using a locking screw 11;
6. placing the paste-like heat insulating material in a feeding chamber 5 of the middle mold 2;
7. placing an upper die 1 on a middle die 2, and injecting a paste material into a sample connecting piece 4 by using the pressure of a vulcanizing machine;
8. repeating the steps 6 and 7 until a small amount of paste-like heat-insulating material overflows between the upper die 1 and the middle die 2,
the first cavity is filled with the paste heat-insulating material, a vulcanizing machine is used for locking the mold, the upper mold 1 is prevented from being bounced off due to expansion of the material in the curing process, and finally the temperature is raised for curing;
9. and (5) after the mold is cooled, releasing the bonding test piece from the tool.
Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that the embodiments may be modified or changed without departing from the spirit of the present invention within the scope of the appended claims.
Claims (9)
1. The utility model provides a simple and easy frock for making test piece which characterized in that: from top to bottom include:
the test sample testing device comprises an upper die (1), a middle die (2), a lower die (3) and one or more sample connecting pieces (4) positioned between the middle die (2) and the lower die (3);
a feeding chamber (5) is arranged at the upper part of the middle die (2), and one or more injection holes (6) penetrating through the middle die (2) are formed in the lower surface of the feeding chamber (5);
the sample connecting piece (4) is internally provided with a first cavity (7), and the first cavity (7) is arranged below the injection hole (6).
2. The simple tool according to claim 1, characterized in that: the lower part of the upper die (1) is matched with the shape of the feeding chamber (5).
3. The simple tool according to claim 1, characterized in that: the inner surface of the feeding chamber (5) is a polytetrafluoroethylene layer.
4. The simple tool according to claim 1, characterized in that: the contact part of the lower part of the upper die (1) and the feeding chamber (5) is a polytetrafluoroethylene layer.
5. The simple tool according to claim 1, characterized in that: and a positioning mechanism is arranged on the lower die (3).
6. The simple tool according to claim 5, characterized in that: the sample connecting piece (4) both ends are provided with fabrication hole (8), positioning mechanism is stop pin (9), stop pin (9) pass fabrication hole (8) and fix a position sample connecting piece (4).
7. The simple tool according to claim 1, characterized in that: and a locking mechanism is also arranged between the middle die (2) and the lower die (3).
8. The simple tool according to claim 7, characterized in that: the locking mechanism is a locking screw (11).
9. The simple tool according to claim 1, characterized in that: and the contact parts of the lower surface of the middle die (2) and the upper surface of the lower die (3) and the sample connecting piece (4) are provided with demoulding grooves (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022800245.6U CN214150083U (en) | 2020-11-27 | 2020-11-27 | Simple tool for manufacturing test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022800245.6U CN214150083U (en) | 2020-11-27 | 2020-11-27 | Simple tool for manufacturing test piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214150083U true CN214150083U (en) | 2021-09-07 |
Family
ID=77567243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022800245.6U Active CN214150083U (en) | 2020-11-27 | 2020-11-27 | Simple tool for manufacturing test piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214150083U (en) |
-
2020
- 2020-11-27 CN CN202022800245.6U patent/CN214150083U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3723585A (en) | Method of electroformed molds | |
| CN104227879B (en) | Method for positioning metal embedded part in flexible mold assisted RTM molding | |
| CN111070560B (en) | Injection or injection-compression molding tool and process for heat insulation layer of combustion chamber of solid rocket engine | |
| CN208410457U (en) | A kind of power transmitting device conducting ring encapsulating die | |
| CN214150083U (en) | Simple tool for manufacturing test piece | |
| WO2008092379A1 (en) | Diaphragm and filter plate and their molding methods | |
| CN112848242B (en) | Winding core mold with deformation adapter layer and composite shell forming method | |
| KR20090050597A (en) | Injection molding die and injection molding method using bmc | |
| CN110815857A (en) | Forming method and application of flexible tool for reinforcing rib and web plate co-bonding | |
| CN108943771B (en) | Manufacturing method of prefabricated part of blade root of wind power blade | |
| CN110341108A (en) | A kind of labyrinth rubber heat-insulating lamination injection forming mold and moulding technique | |
| CN217847707U (en) | Filling and packaging tool for radially leading out film capacitor | |
| CN208376049U (en) | The mold of composite material special part compression molding | |
| CN107162589B (en) | Full-ceramic wavelength division multiplexer and preparation method thereof | |
| CN101354123A (en) | LED optical apparatus and preparation method thereof | |
| CN218239780U (en) | Tool for testing tensile bonding performance of rubber material | |
| CN210256638U (en) | Die for gel injection molding of ceramic radome blank | |
| CN218640108U (en) | Combined die for preventing resin from permeating into die cavity | |
| JP3214789B2 (en) | Resin molding device and resin molding method | |
| CN221112699U (en) | Semi-annular tunnel runner structure and injection mold | |
| CN115091662B (en) | Fairing radome production mold, radome processing method and radome | |
| CN218811420U (en) | Titanium alloy and glass sealing mould | |
| CN216443110U (en) | Forming die for composite material parts of variable-cross-section closed-angle cap type pipeline | |
| CN212603110U (en) | Mold for preparing epoxy resin composition sample strips | |
| CN219650468U (en) | Injection molding die for adiabatic joint of solid rocket engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |