CN109320389A - A kind of solar heat protection primacord and preparation method thereof - Google Patents
A kind of solar heat protection primacord and preparation method thereof Download PDFInfo
- Publication number
- CN109320389A CN109320389A CN201811002642.XA CN201811002642A CN109320389A CN 109320389 A CN109320389 A CN 109320389A CN 201811002642 A CN201811002642 A CN 201811002642A CN 109320389 A CN109320389 A CN 109320389A
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- primacord
- solar heat
- extrusion molding
- heat protection
- coating
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Classifications
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C5/00—Fuses, e.g. fuse cords
- C06C5/04—Detonating fuses
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Woven Fabrics (AREA)
Abstract
The present invention provides a kind of solar heat protection primacord and preparation method thereof, solar heat protection primacord includes thermal protective coating, extrusion molding layer, braiding layer and primacord, and braiding layer and extrusion molding layer are coated on silver-colored pipe primacord surface, then in one layer of thermal protective coating of outer surface dip-coating.A kind of solar heat protection primacord provided by the invention is mainly used for satellite, carrier rocket, hypersonic aircraft and leads quick-fried, the structural integrity No leakage after 350 DEG C/600s or 35.5kW/m2/70s work.
Description
Technical field
It is to carry out common Confined detonating fuse expansion application to grind the present invention relates to a kind of solar heat protection primacord and preparation method thereof
A kind of novel solar heat protection primacord studied carefully, designed for the application of delivery model thermal environment.Belong to Aeronautics and Astronautics pyrotechnics technique neck
Domain.
Background technique
The use environment of common Confined detonating fuse is preferable, does not exceed 100 DEG C generally, clad can guarantee its work
It is structural integrity after work, pollution-free, but in the case where being higher than 120 DEG C of temperature or certain heat-flux conditions, clad performance can change,
It can be leaked when use, be unsatisfactory for free of contamination requirement.
With the expansion of application range, some delivery models propose demand resistant to high temperature in short-term, need to bear 200 DEG C/
75s or certain hot-fluid wash away lower primacord and remain to normal work and structural integrity, for this reason, it may be necessary to provide a kind of improved anti-thermal conductivity
Quick-fried rope improves the heat resistance of primacord, guarantees functional reliability and structural intergrity, greatly improves common Confined detonating fuse
Application range.
Summary of the invention
Technology of the invention solves the problems, such as: overcoming the deficiencies of the prior art and provide a kind of solar heat protection primacord and its preparation side
Method improves itself heat resistance of primacord.
The technical solution of the invention is as follows: a kind of solar heat protection primacord, which includes: thermal protective coating, extrusion molding
Layer, braiding layer and primacord, braiding layer are coated on primacord outer surface, and extrusion molding layer is coated on braiding layer outer surface, extrusion molding layer
Outer surface is thermal protective coating.
The thermal protective coating is polyurethane thermal protective coating.
The thermal protective coating is wrapped in extrusion molding layer surface in the form of dip-coating.
The extrusion molding layer material is perfluoroethylene-propylene.
The braiding layer material is fiber filament, can be aramid fiber, Kevlar or high tenacity polyester fiber silk.
The braiding number of plies is greater than 7 layers.
The primacord sheathing material be silver, the built-in explosive for resistance to 270DC or more high temperature, can be octogen,
Hexanitro Stilbene or DIPAM explosive.
A kind of preparation method of solar heat protection primacord, it is characterised in that include the following steps:
S1, the form covered fiber silk in primacord outer surface to weave can be aramid fiber, Kevlar or dacron thread, packet
Coating number is 7 layers or more, and braiding number of spindles is 24 ingots or more, forms braiding layer；
S2, perfluoroethylene-propylene is coated in the form of extrusion molding in woven primacord outer surface, form extrusion molding layer, extrusion molding
Machine temperature is 320 DEG C~380 DEG C, and extrusion molding is with a thickness of 0.6~1mm.
S3, in the good silver-colored pipe primacord outer surface dip-coating polyurethane thermal protective coating of extrusion molding, each dip-coating with a thickness of 0.1~
0.2mm, dip-coating number are not less than 10 times, and drying and processing is carried out after each dip-coating, and overall thickness is 2~3mm.
Compared with the prior art, the advantages of the invention are
(1), the present invention utilizes the own material properties of polyurethane thermal protective coating, under the conditions of certain thermal environment, after being heated
It is expanded foamed, it forms vacuum belt and hot-air is isolated, reduce the high temperature of primacord receiving；
(2), the present invention braided material high using tough good extruded material and intensity, improves primacord
Heat resistance；
(3), the present invention increases the combination journey of extrusion molding layer and product using the special clad structure of extrusion molding after first weaving
Degree, and the blast impulse after primacord works to extrusion molding layer has been buffered, the explosion residue after the work of operative constraint primacord is realized
No leakage and pollution-free.
(4), primacord material selection heat resistance of the present invention excellent silver and explosive, itself heat-resisting quantity with higher
Energy.
(5), the present invention weight of the invention compared to common Confined detonating fuse, volume increase smaller, and structure is simple,
High reliablity.
Detailed description of the invention
Fig. 1 is a kind of novel solar heat protection primacord structural schematic diagram.
Specific embodiment
Below in conjunction with attached drawing, the present invention is described in detail with specific embodiment.
As shown in Figure 1, the present invention provides it is a kind of for carrier rocket, satellite, ultrasonic cruise missile propagation of explosion
Solar heat protection primacord.The solar heat protection primacord includes thermal protective coating 1, extrusion molding layer 2, braiding layer 3 and primacord 4, and braiding layer 3, which is coated on, to be led
Quick-fried 4 outer surface of rope, extrusion molding layer 2 are coated on 3 outer surface of braiding layer, and the outer surface of extrusion molding layer 2 is thermal protective coating 1.
The thermal protective coating 1 is polyurethane thermal protective coating, and 2 surface of extrusion molding layer is wrapped in the form of dip-coating.
2 material of extrusion molding layer is perfluoroethylene-propylene.
3 material of braiding layer is fiber filament, can be aramid fiber, Kevlar or high-strength synthetic fibre silk, and the braiding number of plies is greater than 7
Layer.
4 sheathing material of primacord is silver, and the built-in explosive for resistance to 270DC or more high temperature can be octogen, six
Nitro Stilbene or DIPAM explosive.
The working principle of the invention: outermost when the external world is the thermal environments conditions such as specific high temperature, short time or hot-fluid
Polyurethane thermal protective coating expanded by heating forms vacuum belt, and hot-air is isolated, and reduces the temperature that primacord is born；Simultaneously braiding and
Extrusion molding clad can also bear certain thermal environment, the residue after the work of silver-colored pipe primacord is wrapped in interiors of products, thus nothing
Leakage and pollution.
The present invention also provides a kind of preparation method of solar heat protection primacord, which includes the following steps:
S1, the form covered fiber silk in 4 outer surface of primacord to weave can wash for aramid fiber, Kevlar or high intensity
Synthetic fibre silk, the cladding number of plies are 7 layers or more, and braiding number of spindles is 24 ingots, form braiding layer；
S2, perfluoroethylene-propylene is coated in the form of extrusion molding in woven 4 outer surface of primacord, form extrusion molding layer, squeeze
Molding machine temperature is 320 DEG C~380 DEG C, and extrusion molding is with a thickness of 0.6~1mm.
S3, in the good 4 outer surface dip-coating polyurethane thermal protective coating of silver-colored pipe primacord of extrusion molding, each dip-coating with a thickness of 0.1~
0.2mm, dip-coating number are not less than 10 times, and drying and processing is carried out after each dip-coating, and overall thickness is 2~3mm.
The preparation method and technical effect that the above-mentioned solar heat protection primacord of three embodiments is listed below are illustrated.
Embodiment 1
S1, the form covered fiber silk in primacord outer surface to weave can be aramid fiber, Kevlar or high tenacity polyester fiber
Silk, the cladding number of plies are 7 layers, and braiding number of spindles is 24 ingots, form braiding layer；
S2, perfluoroethylene-propylene is coated in the form of extrusion molding in woven 4 outer surface of primacord, form extrusion molding layer, squeeze
Molding machine temperature is 320 DEG C, and extrusion molding is with a thickness of 0.6.
S3, in the good 4 outer surface dip-coating polyurethane thermal protective coating of silver-colored pipe primacord of extrusion molding, each dip-coating with a thickness of 0.1mm,
Dip-coating number 30 times, 130 DEG C/1h drying and processing, overall thickness 3mm are carried out after each dip-coating.
By verification experimental verification, solar heat protection primacord made of the above method is in 350 DEG C/650s or 35.5kW/m2/ 70s work
Structural integrity No leakage afterwards.
Embodiment 2
S1, the form covered fiber silk in 4 outer surface of primacord to weave can wash for aramid fiber, Kevlar or high intensity
Synthetic fibre silk, the cladding number of plies are 9 layers, and braiding number of spindles is 32 ingots, form braiding layer；
S2, perfluoroethylene-propylene is coated in the form of extrusion molding in woven 4 outer surface of primacord, form extrusion molding layer, squeeze
Molding machine temperature is 380 DEG C, and extrusion molding is with a thickness of 1mm.
S3, in the good 4 outer surface dip-coating polyurethane thermal protective coating of silver-colored pipe primacord of extrusion molding, each dip-coating with a thickness of
0.15mm dip-coating number 20 times, carries out 132 DEG C/1h drying and processing, overall thickness 3mm after each dip-coating.
By verification experimental verification, solar heat protection primacord made of the above method is in 370 DEG C/600s or 35.5kW/m2/ 70s work
Structural integrity No leakage afterwards.
Embodiment 3
S1, the form covered fiber silk in 4 outer surface of primacord to weave can wash for aramid fiber, Kevlar or high intensity
Synthetic fibre silk, the cladding number of plies are 11 layers, and braiding number of spindles is 32 ingots, form braiding layer；
S2, perfluoroethylene-propylene is coated in the form of extrusion molding in woven 4 outer surface of primacord, form extrusion molding layer, squeeze
Molding machine temperature is 350 DEG C, and extrusion molding is with a thickness of 0.8mm.
S3, in the good 4 outer surface dip-coating polyurethane thermal protective coating of silver-colored pipe primacord of extrusion molding, each dip-coating with a thickness of 0.2mm,
Dip-coating number 10 times, 128 DEG C/1h drying and processing, overall thickness 2mm are carried out after each dip-coating.
By verification experimental verification, solar heat protection primacord made of the above method is in 380 DEG C/650s or 42kW/m2After/70s work
Structural integrity No leakage.
A kind of solar heat protection primacord provided by the invention meets delivery model, satellite and hypersonic aircraft thermal environment item
The requirement of part then expands nonelectric product application market,.For have thermal environment require model have wide application
Prospect.
Unspecified part of the present invention belongs to common sense well known to those skilled in the art.
Claims (11)
1. a kind of solar heat protection primacord, characterized by comprising: thermal protective coating (1), extrusion molding layer (2), braiding layer (3) and primacord
(4), braiding layer (3) is coated on primacord (4) outer surface, and extrusion molding layer (2) is coated on braiding layer (3) outer surface, extrusion molding layer (2)
Outer surface is thermal protective coating (1).
2. a kind of solar heat protection primacord according to claim 1, it is characterised in that: the thermal protective coating (1) is anti-for polyurethane
Hot coating.
3. a kind of solar heat protection primacord according to claim 1, it is characterised in that: the thermal protective coating (1) is with the shape of dip-coating
Formula is wrapped in extrusion molding layer (2) surface.
4. a kind of novel solar heat protection primacord according to claim 1 and preparation method thereof, it is characterised in that: the extrusion molding
Layer (2) material is perfluoroethylene-propylene.
5. a kind of solar heat protection primacord according to claim 1, it is characterised in that: braiding layer (3) material is fiber
Silk.
6. a kind of solar heat protection primacord according to claim 6, it is characterised in that: the fiber filament includes aramid fiber, Kevlar
Or dacron thread.
7. a kind of solar heat protection primacord according to claim 1, it is characterised in that: braiding layer (3) the braiding number of plies is big
In 7 layers.
8. a kind of solar heat protection primacord according to claim 1, it is characterised in that: described primacord (4) sheathing material is
Silver, the built-in explosive for resistance to 270 DEG C or more high temperature.
9. a kind of solar heat protection primacord according to claim 1, it is characterised in that: the explosive is octogen, hexanitro
Stilbene or DIPAM explosive.
10. a kind of solar heat protection primacord according to claim 1, it is characterised in that for carrier rocket, satellite, ultrasonic
The propagation of explosion of cruise missile.
11. a kind of preparation method of solar heat protection primacord, it is characterised in that include the following steps:
S1, the form covered fiber silk in primacord (4) outer surface to weave can be aramid fiber, Kevlar or dacron thread, cladding
The number of plies is 7 layers or more, and braiding number of spindles is 24 ingots or more, forms braiding layer；
S2, perfluoroethylene-propylene is coated in the form of extrusion molding in woven primacord (4) outer surface, form extrusion molding layer, extrusion molding
Machine temperature is 320 DEG C~380 DEG C, and extrusion molding is with a thickness of 0.6~1mm.
S3, in good silver-colored pipe primacord (4) the outer surface dip-coating polyurethane thermal protective coating of extrusion molding, each dip-coating with a thickness of 0.1~
0.2mm, dip-coating number are not less than 10 times, and drying and processing is carried out after each dip-coating, and overall thickness is 2~3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002642.XA CN109320389B (en) | 2018-08-30 | 2018-08-30 | Heat-proof detonating fuse and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002642.XA CN109320389B (en) | 2018-08-30 | 2018-08-30 | Heat-proof detonating fuse and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109320389A true CN109320389A (en) | 2019-02-12 |
| CN109320389B CN109320389B (en) | 2021-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811002642.XA Active CN109320389B (en) | 2018-08-30 | 2018-08-30 | Heat-proof detonating fuse and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN109320389B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207640A (en) * | 2020-03-30 | 2020-05-29 | 南阳市神威***工程有限公司 | Ultra-deep hole blasting method |
| CN112266181A (en) * | 2020-11-17 | 2021-01-26 | 衡阳凌云特种材料有限公司 | Heat-proof/insulation composite material and preparation method and application thereof |
| CN112300561A (en) * | 2020-11-17 | 2021-02-02 | 衡阳凌云特种材料有限公司 | Composite hose for limiting detonating cord and preparation method thereof |
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| CN1108597A (en) * | 1993-12-20 | 1995-09-20 | 起爆******持股有限公司 | Signal tube of improved oil resistance |
| CN1124239A (en) * | 1994-12-07 | 1996-06-12 | 长沙矿山研究院 | Inductive explosion non-directional industrial explosion-guiding cable |
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| CN2341988Y (en) * | 1998-04-01 | 1999-10-06 | 长沙矿山研究院 | Composite sandwich type high-strength detonating tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207640A (en) * | 2020-03-30 | 2020-05-29 | 南阳市神威***工程有限公司 | Ultra-deep hole blasting method |
| CN112266181A (en) * | 2020-11-17 | 2021-01-26 | 衡阳凌云特种材料有限公司 | Heat-proof/insulation composite material and preparation method and application thereof |
| CN112300561A (en) * | 2020-11-17 | 2021-02-02 | 衡阳凌云特种材料有限公司 | Composite hose for limiting detonating cord and preparation method thereof |
| CN112266181B (en) * | 2020-11-17 | 2022-08-02 | 衡阳凌云特种材料有限公司 | Heat-proof/insulation composite material and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN109320389B (en) | 2021-02-09 |
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