CN105067402B - A kind of mould and its application method for being used to prepare pull-off strength test test specimen - Google Patents
A kind of mould and its application method for being used to prepare pull-off strength test test specimen Download PDFInfo
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- CN105067402B CN105067402B CN201510447676.XA CN201510447676A CN105067402B CN 105067402 B CN105067402 B CN 105067402B CN 201510447676 A CN201510447676 A CN 201510447676A CN 105067402 B CN105067402 B CN 105067402B
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Abstract
The invention discloses a kind of mould and its application method for being used to prepare pull-off strength test test specimen, the mould includes the connecting plate positioned at both sides, two pieces of connecting plates be arranged in parallel, and one end is attached by support bar, it is provided between connecting plate and founds two pieces of risers, two pieces of risers are parallel to each other, and are vertically arranged with connecting plate, and the framework of four sides closure is surrounded by two pieces of connecting plates and two pieces of risers；The bottom of framework is provided with base, and the center of base is provided with plunger tip head, and plunger tip head is provided with bottom plate, the dividing plate for test specimen to be separated is additionally provided with framework.Test specimen prepared by the mould can truly reflect interfacial adhesion, and quality is good, and precision is high, and is easy to be stripped.
Description
Technical field
The present invention relates to a kind of mould, specially a kind of mould for being used to prepare pull-off strength test test specimen.
Background technology
At present, during motor charge, how to detect interfacial adhesion strength be it is extremely important with necessary, especially
Combine adhesive strength between heat insulation layer, lining and propellant.Generally use synchronously makes the method that test specimen is tested.Bonding
The reliability key of intensity data is the normalization that test specimen makes, and current making mould is fairly simple, one a pair of test specimen
There is local misalignment between the steel part answered, cause its second-rate, data stability is poor, and mainly takes hand ejection to operate,
With potential safety hazard.
The content of the invention
It is an object of the invention to provide a kind of mould and its application method for being used to prepare pull-off strength test test specimen, pass through
Test specimen prepared by the mould is more accurate, representative, and is convenient in demoulding, and will not damage mould, security is good.
In order to solve the above technical problems, the technical solution adopted in the present invention is：One kind is used to prepare pull-off strength test
The mould of test specimen, including the connecting plate positioned at both sides, two pieces of connecting plates are be arranged in parallel, and one end is attached by support bar,
It is provided between connecting plate and founds two pieces of risers, two pieces of risers is parallel to each other, are vertically arranged with connecting plate, pass through two pieces of connecting plates and two
Block riser surrounds the framework of four sides closure；The bottom of framework is provided with base, and the center of base is provided with plunger tip head, and plunger tip head is provided with
Bottom plate, the dividing plate for test specimen to be separated is additionally provided with framework.
Further, one end of the riser is connected by bearing and connecting plate；I.e. base of frame riser with
It is attached between connecting plate by bearing, and installation fixation is carried out with by bolt, is conveniently adjusted and dismounts.
Further, one end of two pieces of risers is respectively symmetrically provided with groove, and bracing piece is connected between two grooves；
Riser can preferably be positioned by bracing piece, prevent occurring sliding between the two or misplace,
Further, be additionally provided with the pressing plate for fixing test specimen to be prepared between two pieces of connecting plates, pressing plate and connecting plate it
Between positioned by bolt.Compressed by pressing plate and test specimen to be prepared, further fix test specimen to be prepared, prevent its hair
Life is moved during solidification.
Further, the surrounding of described connecting plate and middle part are provided with multiple holes, the hole of surrounding be used for connecting plate it
Between and connecting plate and miscellaneous part installation positioning, the hole at middle part is easy to observe and installs test specimen to be prepared.
Further, the center of the base is provided with through hole, and the aperture at the through hole both ends is more than median pore radius, the plunger tip
Head is arranged on through hole, and a part for plunger tip head is located in through hole, is carried out clamping by the less position of median pore radius, is being stripped
During, the lower section of base plate through holes is exerted a force to plunger tip head using instrument, makes its loosening, conveniently prepares taking for test specimen
Go out.
Further, backing plate and baffle plate are also equipped between two pieces of risers, backing plate and baffle plate are correspondingly arranged, and pass through spiral shell
Bolt is positioned with riser, and backing plate and baffle plate can coordinate pressing plate and bracing piece to be installed, to obtain the test specimen of required shape,
And realize more accurate positioning.
The method that pull-off strength test test specimen is prepared using the mould, is comprised the following steps：
1）Heat insulation layer or lining are made on the steel part for preparing the both ends needed for test specimen, end is formed, is then respectively charged into
Between two pieces of risers, clamped by riser, two end symmetrics are set；Installed at bottom plate, alternately load dividing plate and end
Portion, it is positioned after being installed in place, and connecting plate is fixed；
2）Medicine slurry is injected toward between the steel part at both ends from top to bottom, treats its solidification, forms powder column；
3）Plunger tip head is pushed upwards by instrument, the sub-assembly that top pine is formed together by powder column and two ends, taken out
Bottom plate and dividing plate, cutting shaping is carried out to it, obtain the single pull-off strength test test specimen of required preparation.
Further, step 3）Described in instrument include location-plate and core ejecting device, described location-plate enters with base
Row coordinates, and core ejecting device is located at the lower section of location-plate.
Mould provided by the invention have the advantage that for：
1st, the step of test specimen prepared, is identical with motor charge Complete Synchronization and process conditions, and obtained test specimen can be true
The interfacial adhesion of real reflection engine.
When the 2nd, solving traditional test material preparation, easily misplaced between steel part, the problem of causing interfacial adhesion strength to fluctuate, system
Preparation Method more advantages of simple, handwork and uncontrollable factor are reduced, and the test specimen of preparation is more unified and representative, carries
High test specimen accuracy and quality.
3rd, solve the difficult problem of the demoulding existing for traditional mode using mechanical plunger tip, avoid and beaten using wooden mallet, be right
The damage of mould and destruction is produced to test specimen, and improve the security of operation, thoroughly solve hit mode and easily lead
Cause the hidden danger of the generations such as propellant burning and blast.
Brief description of the drawings
Fig. 1 is the structural representation that single pull-off strength provided by the invention tests test specimen.
Fig. 2 is the assembling unit structure schematic diagram that test specimen connection is tested by 5 groups of pull-off strengths after the demoulding.
Fig. 3 is the structural representation of inventive die.
Fig. 4 is the use state diagram of inventive die.
Fig. 5 is the structural representation of steel part.
Fig. 6 is the structural representation of connecting plate.
Fig. 7 is the structural representation of riser.
Fig. 8 is the structural representation of base.
Fig. 9 is the structural representation of bottom plate.
Figure 10 is the structural representation of plunger tip head.
Figure 11 is the structural representation of pressing plate.
Figure 12 is the structural representation of dividing plate.
Figure 13 is the structural representation of bearing.
Figure 14 is the structural representation of baffle plate.
Figure 15 is the structural representation of backing plate.
Figure 16 is that test specimen is stripped schematic diagram.
Embodiment
The present invention is further illustrated with reference to embodiment and accompanying drawing 1-16, but the scope of protection of present invention is not
It is confined to the scope of embodiment statement.
A kind of mould for being used to prepare pull-off strength test test specimen, including the connecting plate 1 positioned at both sides, two pieces of connecting plates are put down
Row is set, and one end is attached by support bar 2, is provided between connecting plate and is found two pieces of risers 3, and two pieces of risers 3 are parallel to each other,
It is vertically arranged with connecting plate 1, the framework of four sides closure is surrounded by two pieces of connecting plates and two pieces of risers；The bottom of framework is provided with bottom
Seat 4, the center of base is provided with plunger tip first 5, and plunger tip first 5 is provided with bottom plate 6, the dividing plate for test specimen to be separated is additionally provided with framework
7。
As shown in fig. 6, connecting plate 1 is in I-shaped, the surrounding of connecting plate and middle part are provided with multiple holes, two above it
It is to be used for connection support bar and nut to open slotted hole, and to be cylindric among support bar 2, both ends are threaded；Bottom outside
Through hole be used for connects bearing 8, packing ring can also be set between connecting plate and bearing, play buffering and adjustment distance effect；
The through hole provided with strip of bottom centre, available for observing.The convenient observation installation of the special-shaped through hole at middle part, manhole are used for
Fitted bolt installs pressing plate.
As shown in fig. 7, one end of riser 3 is connected by bearing 8 and connecting plate 1, described bearing is set riser structure
For two, positioned at the lower section of framework, the structure of bearing is as shown in figure 13.
In preferable scheme, one end of two pieces of risers is respectively symmetrically provided with groove 31, is connected between two grooves 31
There is bracing piece 9, the centre of bracing piece is rectangular-shape, and both ends are cylindric, and cylindric go up carries external screw thread, rectangular-shape portion
Divide and be additionally provided with centre bore, be threaded in hole.
In preferable scheme, be additionally provided with the pressing plate 10 for fixing test specimen to be prepared between two pieces of connecting plates, pressing plate 10 with
Positioned between connecting plate by bolt, the structure of pressing plate is as shown in figure 11.
The structure of base as shown in figure 8, the structure of bottom plate as shown in figure 9, the structure of plunger tip head is as shown in Figure 10.
In preferable scheme, the center of the base 4 is provided with through hole 41, and the aperture at the through hole both ends is more than median pore radius,
The plunger tip head is arranged on through hole 41, and a part for plunger tip head is located in through hole 41.
The top of the plunger tip head is provided with projection, and the bottom of bottom plate is provided with matched groove, plunger tip head and bottom plate it
Between pass through and raised be connected with groove.
The structure of baffle plate is as shown in figure 14, and the structure of backing plate is as shown in figure 15, in preferable scheme, two pieces of risers 3
Between be also equipped with backing plate 11 and baffle plate 12, backing plate 11 and baffle plate 12 are correspondingly arranged, positioned by bolt and riser 3.
The method that pull-off strength test test specimen is prepared using the mould, is comprised the following steps：
1）Heat insulation layer or lining 16 are made on the steel part 15 for preparing the both ends needed for test specimen, end is formed, then distinguishes
Load between two pieces of risers, clamped by riser, two end symmetrics are set；Installed at bottom plate, alternately load dividing plate
And end, it is positioned after being installed in place, and connecting plate is fixed；As described in figures 1 and 5, wherein steel part includes a block length
Square plate body, the one side of plate body are connected with upward cuboid boss, and another side is connected with cylinder, and cylinder
On offer hole.It is close to steel part and is provided with heat insulation layer or lining, intermediate layer is the powder column formed after medicine slurry solidifies；
2）Medicine slurry is injected toward between the steel part at both ends from top to bottom, treats its solidification, forms powder column 17；
3）Plunger tip head is pushed upwards by instrument, the sub-assembly that top pine is formed together by powder column and two ends, taken out
Bottom plate and dividing plate, cutting shaping is carried out to it, obtain the single pull-off strength test test specimen of required preparation.
Wherein, medicine slurry used is composite solidpropellant or PBX explosives.
Further, step 3）Described in instrument include location-plate 13 and core ejecting device 14, it is as shown in figure 16, described
Location-plate is coordinated with base, and core ejecting device is located at the lower section of location-plate.
This mould is fastened the connections such as base, riser, bearing, bracing piece, connecting plate, support bar by bolt, is formed whole
The frame structure of body, plunger tip head and bottom plate are then sequentially assembled, finally the installation bolt on connecting plate, during screw-in, it is desirable to bolt
Tail end end face can not protrude from the opposite side of connecting plate.Its structural representation is shown in Fig. 3.In use, such as without special circumstances,
Frame structure can not be torn open.
For the security of the demoulding, the demoulding uses isolated operation.The bolt of connecting plate is unscrewed, takes out depression bar, removes and strengthens
Bar, this mould is assemblied on core ejecting device 14 by location-plate 13 and screw, sees Figure 16.Rely on equipment and push plunger tip head, push up
The sub-assembly that pine is formed after being solidified by medicine slurry together with integral unit.Bottom plate and dividing plate are taken out, if necessary, uses bottom plate stripper
Tool and dividing plate extractor remove bottom plate and dividing plate.The sub-assembly formed after being solidified by medicine slurry together with integral unit is taken out, such as
Shown in Fig. 2.After cleaved shaping, make pull-off strength test.
Steel part is reusable, before reusing, only need to clear up medicine slurry and heat insulation layer or lining, return to original steel part
Form, you can carry out the making of pull-off strength test test specimen.
Claims (6)
- A kind of 1. mould for being used to prepare pull-off strength test test specimen, it is characterised in that：Including the connecting plate positioned at both sides（1）, Two pieces of connecting plates be arranged in parallel, and one end passes through support bar（2）It is attached, is provided between connecting plate and founds two pieces of risers（3）, two Block riser（3）It is parallel to each other, with connecting plate（1）It is vertically arranged, four sides closure is surrounded by two pieces of connecting plates and two pieces of risers Framework；The bottom of framework is provided with base（4）, the center of base is provided with plunger tip head（5）, plunger tip head（5）It is provided with bottom plate（6）, frame The dividing plate for test specimen to be separated is additionally provided with frame（7）；One end of two pieces of risers is respectively symmetrically provided with groove（31）, two grooves （31）Between be connected with bracing piece（9）；The pressing plate for fixing test specimen to be prepared is additionally provided between two pieces of connecting plates（10）, Pressing plate（10）Positioned between connecting plate by bolt；Two pieces of risers（3）Between be also equipped with backing plate（11）And gear Plate（12）, backing plate（11）And baffle plate（12）It is correspondingly arranged, passes through bolt and riser（3）Positioned.
- 2. mould according to claim 1, it is characterised in that：The riser（3）One end pass through bearing（8）With connecting plate （1）It is connected.
- 3. mould according to claim 1, it is characterised in that：The surrounding of described connecting plate and middle part are provided with multiple holes Hole.
- 4. mould according to claim 1, it is characterised in that：The base（4）Center be provided with through hole（41）, the through hole The aperture at both ends is more than median pore radius, and the plunger tip head is arranged on through hole（41）On, a part for plunger tip head is located at through hole（41） It is interior.
- 5. the method for pull-off strength test test specimen is prepared using the mould described in claim 1-4 any one, it is characterised in that Comprise the following steps：1）Heat insulation layer or lining are made on the steel part for preparing the both ends needed for test specimen, end is formed, is then respectively charged into two pieces Between riser, clamped by riser, two end symmetrics are set；Installed at bottom plate, alternately load dividing plate and end, peace It is positioned after being attached to position, and connecting plate is fixed；2）Medicine slurry is injected toward between the steel part at both ends from top to bottom, treats its solidification, forms powder column；3）Plunger tip head is pushed upwards by instrument, the sub-assembly that top pine is formed together by powder column and two ends, takes out bottom plate And dividing plate, cutting shaping is carried out to it, obtains the single pull-off strength test test specimen of required preparation.
- 6. according to the method for claim 5, it is characterised in that：Step 3）Described in instrument include location-plate and plunger tip and fill Put, described location-plate and base（4）Coordinated, core ejecting device is located at the lower section of location-plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510447676.XA CN105067402B (en) | 2015-07-28 | 2015-07-28 | A kind of mould and its application method for being used to prepare pull-off strength test test specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510447676.XA CN105067402B (en) | 2015-07-28 | 2015-07-28 | A kind of mould and its application method for being used to prepare pull-off strength test test specimen |
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| Publication Number | Publication Date |
|---|---|
| CN105067402A CN105067402A (en) | 2015-11-18 |
| CN105067402B true CN105067402B (en) | 2017-11-14 |
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| CN201510447676.XA Active CN105067402B (en) | 2015-07-28 | 2015-07-28 | A kind of mould and its application method for being used to prepare pull-off strength test test specimen |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153476B (en) * | 2016-08-09 | 2018-09-11 | 宁波中加低碳新技术研究院有限公司 | Timber rolls the test method of modulus of shearing and intensity |
| CN111141566A (en) * | 2019-11-29 | 2020-05-12 | 上海航天化工应用研究所 | Forming method of rectangular tear-off test piece of solid rocket engine |
| CN114112901B (en) * | 2021-12-08 | 2024-01-30 | 上海煤科检测技术有限公司 | Experimental device and method for testing characteristics of reactive polymer materials for coal mine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552706A (en) * | 1983-10-05 | 1985-11-12 | The United States Of America As Represented By The Secretary Of The Army | Liner-propellant bond tests |
| US5755401A (en) * | 1995-10-31 | 1998-05-26 | Thiokol Corporation | Missile diverter integration method and system |
| CN202431396U (en) * | 2011-12-12 | 2012-09-12 | 西安航天化学动力厂 | Die for pouring propulsive agent test piece |
| CN202923264U (en) * | 2012-11-16 | 2013-05-08 | 深圳市亿宝隆珠宝首饰有限公司 | Noble metal printing ornament punching mold |
| CN202924937U (en) * | 2012-10-23 | 2013-05-08 | 辽宁庆阳特种化工有限公司 | Vertical type demoulding machine used for demoulding explosive casting mould core in explosive making process |
| CN204064762U (en) * | 2014-08-26 | 2014-12-31 | 西安航天化学动力厂 | A kind of mould of Direct Resolution rectangle associating bonding strength test specimen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20070419A1 (en) * | 2007-06-13 | 2008-12-14 | Avio Spa | METHOD AND PLANT FOR THE REALIZATION OF A CASE OF A MOTOR WITH A SOLID PROPELLENT, AND ENVELOPE REALIZED ACCORDING TO THIS METHOD |
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2015
- 2015-07-28 CN CN201510447676.XA patent/CN105067402B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552706A (en) * | 1983-10-05 | 1985-11-12 | The United States Of America As Represented By The Secretary Of The Army | Liner-propellant bond tests |
| US5755401A (en) * | 1995-10-31 | 1998-05-26 | Thiokol Corporation | Missile diverter integration method and system |
| CN202431396U (en) * | 2011-12-12 | 2012-09-12 | 西安航天化学动力厂 | Die for pouring propulsive agent test piece |
| CN202924937U (en) * | 2012-10-23 | 2013-05-08 | 辽宁庆阳特种化工有限公司 | Vertical type demoulding machine used for demoulding explosive casting mould core in explosive making process |
| CN202923264U (en) * | 2012-11-16 | 2013-05-08 | 深圳市亿宝隆珠宝首饰有限公司 | Noble metal printing ornament punching mold |
| CN204064762U (en) * | 2014-08-26 | 2014-12-31 | 西安航天化学动力厂 | A kind of mould of Direct Resolution rectangle associating bonding strength test specimen |
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| Publication number | Publication date |
|---|---|
| CN105067402A (en) | 2015-11-18 |
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