CN108530729A - Three layers of detonator of low temperature resistant high intensity and preparation method thereof - Google Patents
Three layers of detonator of low temperature resistant high intensity and preparation method thereof Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 73
- 238000005253 cladding Methods 0.000 claims abstract description 20
- 229920006225 ethylene-methyl acrylate Polymers 0.000 claims abstract description 10
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 10
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 229920001038 ethylene copolymer Polymers 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 85
- 238000001816 cooling Methods 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 9
- 210000001161 mammalian embryo Anatomy 0.000 claims description 7
- 238000000137 annealing Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- -1 Polyethylene Polymers 0.000 claims 1
- 239000004698 Polyethylene Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 239000005038 ethylene vinyl acetate Substances 0.000 abstract description 11
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 abstract description 11
- 229920001684 low density polyethylene Polymers 0.000 abstract description 9
- 239000004702 low-density polyethylene Substances 0.000 abstract description 9
- 229920001903 high density polyethylene Polymers 0.000 abstract description 8
- 239000004700 high-density polyethylene Substances 0.000 abstract description 8
- 229920006226 ethylene-acrylic acid Polymers 0.000 abstract description 6
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 abstract description 3
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 229920003182 Surlyn® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2597/00—Tubular articles, e.g. hoses, pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of three layers of detonator of low temperature resistant high intensity, outer layer, middle level, internal layer are made by cladding material, middle layer material, inner layer material respectively, and the component and proportioning of the cladding material are：The linear low density polyethylene that high density polyethylene (HDPE) that mass percent is 60%~80%, mass percent are 20%~40%；The middle layer material is one or more of ethylene acrylic acid co polymer EAA, ethylene-vinyl acetate copolymer EVA, ethylene methacrylic acid copolymer EMA mixture；The component and proportioning of the inner layer material be：The ethylene copolymer that linear low density polyethylene that low density polyethylene (LDPE) that mass percent is 50%~85%, mass percent are 10%~45%, mass percent are 5%~20%.Also disclose the preparation method of three layers of detonator.Detonator compliance of the present invention is excellent, solves the problems, such as that detonator low temperature folding resistance during winter use is poor well and uses.
Description
Technical field
The invention belongs to industrial explosive material technical fields, and in particular to a kind of three layers of detonator of low temperature resistant high intensity and its
Preparation method.
Background technology
Detonator is the plastic hollow hose that a kind of coated inner wall has thin layer explosive powder.High strength detonating tube is generally 2
Or 3 layers, currently, the high strength detonating tube outer layer of domestic production generally uses being blended for high density polyethylene (HDPE) and low density polyethylene (LDPE)
Object, internal layer use the mixture of low density polyethylene (LDPE) and vicidity substance (polyisobutene).The height that these material manufactures come out
Intensity detonator there are medicinal powder it is easy to migrate, the inadequate high and low temperature of tensile strength is easy to break, poor corrosion resistance the shortcomings of, especially in the winter
It in use, detonator harden, phenomenon of rupture it is serious, brought to construction serious constant.Though some producer's introductions of foreign technology
Three layers of high strength detonating tube are prepared, internal layer uses Surlyn, middle level that EVA, outer layer is used to use HDPE, and prepared high intensity is led quick-fried
Not only resistance to low temperature is poor for pipe, at the same there is also production costs it is expensive, raw material sources are not extensive the shortcomings of.
Invention content
It easily obtains the purpose of the present invention is providing a kind of raw material regarding to the issue above, apparatus adaptability is good, manufacturing cost
Low three layers of detonator of low temperature resistant high intensity and preparation method thereof.
Realizing the technical solution of the purpose is：
A kind of three layers of detonator of low temperature resistant high intensity, outer layer, middle level, internal layer are respectively by cladding material, middle layer material, interior
Layer material is made, and the component and proportioning of the cladding material are：Mass percent be 60%~80% high density polyethylene (HDPE), matter
Measure the linear low density polyethylene that percentage is 20%~40%；The middle layer material is ethylene-acrylic acid copolymer EAA, second
One or more of alkene-vinyl acetate copolymer eva, ethylene-methacrylic acid copolymer EMA mixtures；The internal layer material
The component and proportioning of material be：Low density polyethylene (LDPE) that mass percent is 50%~85%, mass percent are 10%~45%
Linear low density polyethylene, mass percent be 5%~20% ethylene copolymer.
The ethylene copolymer is one or more mixtures in the iolon of EVA or EMA or EAA.
MA contents are less than AA contents in 10%, EAA and are less than 10% in the EMA, and VA contents exist in the EVA in middle layer material
VA contents are less than 5% in 20~30%, the EVA in inner layer material.
The density of the linear low density polyethylene is in 0.915~0.930g/cm3, melt index is in 9~11g/10min；
The cladding material, middle layer material, inner layer material account for respectively total detonator material quality 30%~40%, 30%~40%,
30%~40%.
A kind of preparation method of three layers of detonator of low temperature resistant high intensity above-mentioned, includes the following steps：
(1) inner layer material is put into single layer extruder and is plasticized, squeezed out by extruding dies, form inner layer blank
Pipe；
(2) by pneumatic device, medicinal powder in die head core rod hole is uniformly attached on inner layer blank inside pipe wall；
(3) cooling shaping is carried out to the embryonic tube that step (2) obtains, traction stretches；
(4) it will be plasticized in middle layer material, cladding material input double-layer coextrusion extruder, squeezed by co-extruder head
Go out the inner tube embryo that encapsulation steps (3) obtain, forms three layers of compound embryonic tube；
(5) compound embryonic tube is carried out forcing cooling and is shaped；
(6) and then heating stretch processing is carried out；
(7) it and then is made annealing treatment；
(8) and then cooling shaping is carried out, forms detonator；
(9) it winds.
Inner layer material processing temperature in the step (1) is respectively 165~175 DEG C, 175~185 DEG C, 185~195
DEG C, 185~195 DEG C, the outer diameter of the internal layer embryonic tube of formation is 7.5~9mm, internal diameter is 3.5~4.5mm.
Cooling temperature in the step (3) is 10~30 DEG C, traction stretch after internal layer embryonic tube outer diameter be 3~4mm,
2~3mm of internal diameter.
The processing temperature of middle layer material in the step (4) is respectively 140~160 DEG C, 150~170 DEG C, 160~180
DEG C, 165~185 DEG C, the processing temperature of cladding material is respectively 190~210 DEG C, 200~220 DEG C, 210~230 DEG C, 205~
225 DEG C, the outer diameter of three layers of compound embryonic tube of formation is 3.5~4.5mm, internal diameter is 2~3mm.
It carries out forcing cooling temperature in the step (5) being 15~20 DEG C, the hot-stretch temperature carried out in step (6) is
40~100 DEG C, the middle annealing temperature carried out of step (7) is 60~100 DEG C, and the cooling temperature carried out in step (8) is 5~20
℃。
Windup rate in the step (9) is 80~120m/min.
The beneficial effects of the invention are as follows：Making material is easily obtained, is formulated simply, and manufacturing cost is low, and detonator obtained removes
Reach except the performance indicator required in national standard, also there is excellent compliance, improve its lower-order questions, solves well
The use problem of detonator low temperature folding resistance difference during winter use.
Description of the drawings
Fig. 1 is the production technological process of the detonator of the present invention.
Specific implementation mode
With reference to embodiment, the invention will be further described, but not thereby limiting the invention.
Experimental method in following embodiments is unless otherwise instructed conventional method.
Embodiment 1 prepares the detonator of the present invention
Three layers of detonator of low temperature resistant high intensity are prepared, raw material is made and is divided into cladding material, middle layer material, inner layer material,
Cladding material, middle layer material, inner layer material account for 30%~40%, 30%~40%, the 30% of detonator total raw material quality respectively
~40%.
The component and proportioning of cladding material be：Account for the high-density polyethylene that the mass percent of cladding material is 60%~80%
The linear low density polyethylene that alkene, the mass percent for accounting for cladding material are 20%~40%.
Middle layer material is ethylene-acrylic acid copolymer EAA, ethylene-vinyl acetate copolymer EVA, ethylene-methyl methacrylate
One or more of copolymer EMA mixtures.
The component and proportioning of inner layer material be：Account for the low density polyethylene that the mass percent of inner layer material is 50%~85%
Linear low density polyethylene that alkene, the mass percent for accounting for inner layer material are 10%~45% accounts for the quality percentage of inner layer material
Than the ethylene copolymer for 5%~20%.Ethylene copolymer is one kind or more in the iolon of EVA or EMA or EAA
Kind mixture.
In the material of three layers of detonator of the present invention, MA contents are less than AA contents in 10%, EAA and are less than 10% in EMA,
VA contents are less than 5% in EVA of the VA contents in 20~30%, inner layer material in EVA in middle layer material.
Operate (technological process is as shown in Figure 1) in accordance with the following steps：
A single layer extruder A and two double-layer coextrusion extruders B, C in parallel are selected, extruder is from entrance to extrusion
There are four heating zones altogether, respectively heat 1st area, 2nd area, 3rd area, head mould area；The cladding material selection for preparing detonator of the present invention is matched
Side 3, extruder C processing temperatures are respectively set as 190~210 DEG C, 200~220 DEG C, 210~230 DEG C, 205~225 DEG C；Middle level
Material selection formula 2, extruder B processing temperatures be respectively set as 140~160 DEG C, 150~170 DEG C, 160~180 DEG C, 165~
185℃；Inner layer material select formula 1, extruder A processing temperatures be respectively set as 165~175 DEG C, 175~185 DEG C, 185~
195 DEG C, 185~195 DEG C.First inner layer material, middle layer material, cladding material are respectively fed to mould in extruder A, B, C
Change, squeezed out by extruder A die heads, forms the internal layer embryonic tube of 7.5~9mm of outer diameter, 3.5~4.5mm of internal diameter, while by pneumatically filling
It sets and medicinal powder in die head core rod hole is uniformly attached on inner layer blank inside pipe wall.Then cooling shaping is carried out to inner tube embryo, it is cooling
Temperature is 10~30 DEG C, then draws stretching, and the inner layer blank pipe outside diameter after stretching is 3~4mm, internal diameter is 2~3mm.Then pass through
Two layers co-extrusion coats head, and during plasticizing is complete, cladding material is coextruded by extruder B, C die head by the inner tube after stretching
Embryo coats to form three layers of compound embryonic tube, 3.5~4.5mm of outer diameter of compound embryonic tube, 2~3mm of internal diameter.Finally, to compound embryonic tube
It carries out forcing cooling and shape, then 15~20 DEG C of cooling temperature carries out heating stretch processing, heating temperature to three-layer composite pipe embryo
40~100 DEG C of degree；And three-layer composite pipe embryo is made annealing treatment, 60~100 DEG C of heating temperature, by the pipe embryo after annealing
Cooling shaping is carried out, 5~20 DEG C of cooling temperature forms detonator, and windup rate is 80~120m/min, and detonator compliance is excellent
Good, high-low temperature resistant and oil resistance are good, and tensile strength is more than 220N.
It is prepared for 4 detonator samples according to the method described above, the mass percent of each component is as shown in table 1：
1. detonator raw material components of table and proportioning (each layer component accounts for the mass percent % of layers of material)
The performance for detecting sample 1~4, it is as follows to obtain its performance：
2. detonator performance test of table
Note：" √ " indicates that detonator being capable of normal propagation of explosion after accordingly testing in table.
Making material of the present invention is easily obtained, is formulated simply, and manufacturing cost is low, and detonator obtained is wanted in addition to reaching in national standard
Except the performance indicator asked, also there is excellent compliance, improve its lower-order questions, solve detonator well in winter
The use problem of low temperature folding resistance difference during use.
Claims (10)
1. a kind of three layers of detonator of low temperature resistant high intensity, which is characterized in that its outer layer, middle level, internal layer respectively by cladding material, in
Layer material, inner layer material are made, and the component and proportioning of the cladding material are：The high density that mass percent is 60%~80%
Polyethylene, the linear low density polyethylene that mass percent is 20%~40%；The middle layer material is in EAA, EVA, EMA
One or more of mixtures；The component and proportioning of the inner layer material be：The low-density that mass percent is 50%~85% is poly-
The ethylene copolymer that linear low density polyethylene that ethylene, mass percent are 10%~45%, mass percent are 5%~20%
Object.
2. three layers of detonator of low temperature resistant high intensity as described in claim 1, which is characterized in that the ethylene copolymer is EVA
Or one or more mixtures in the iolon of EMA or EAA.
3. three layers of detonator of low temperature resistant high intensity as claimed in claim 1 or 2, which is characterized in that MA contents are small in the EMA
AA contents are less than 10% in 10%, EAA, EVA of the VA contents in 20~30%, inner layer material in the EVA in middle layer material
Middle VA contents are less than 5%.
4. three layers of detonator of low temperature resistant high intensity as described in claim 1, which is characterized in that the linear low density polyethylene
Density in 0.915~0.930g/cm3, melt index is in 9~11g/10min；The cladding material, middle layer material, internal layer material
Material accounts for 30%~40%, 30%~40%, the 30%~40% of total detonator material quality respectively.
5. a kind of preparation method of such as low temperature resistant three layers of detonator of high intensity of Claims 1-4 any one of them, feature exist
In including the following steps：
(1) inner layer material is put into single layer extruder and is plasticized, squeezed out by extruding dies, form internal layer embryonic tube；
(2) by pneumatic device, medicinal powder in die head core rod hole is uniformly attached on inner layer blank inside pipe wall；
(3) cooling shaping is carried out to the embryonic tube that step (2) obtains, traction stretches；
(4) it will be plasticized in middle layer material, cladding material input double-layer coextrusion extruder, squeezed out and wrapped by co-extruder head
The inner tube embryo that step (3) obtains is covered, three layers of compound embryonic tube are formed；
(5) compound embryonic tube is carried out forcing cooling and is shaped；
(6) and then heating stretch processing is carried out；
(7) it and then is made annealing treatment；
(8) and then cooling shaping is carried out, forms detonator；
(9) it winds.
6. preparation method as claimed in claim 5, which is characterized in that the inner layer material processing temperature point in the step (1)
Wei not be 165~175 DEG C, 175~185 DEG C, 185~195 DEG C, 185~195 DEG C, the outer diameter of the internal layer embryonic tube of formation is 7.5~
9mm, internal diameter are 3.5~4.5mm.
7. preparation method as claimed in claim 5, which is characterized in that the cooling temperature in the step (3) is 10~30 DEG C,
The outer diameter of internal layer embryonic tube after traction stretching is 3~4mm, 2~3mm of internal diameter.
8. preparation method as claimed in claim 5, which is characterized in that the processing temperature of the middle layer material in the step (4)
Respectively 140~160 DEG C, 150~170 DEG C, 160~180 DEG C, 165~185 DEG C, the processing temperature of cladding material is respectively 190
~210 DEG C, 200~220 DEG C, 210~230 DEG C, 205~225 DEG C, the outer diameter of three layers of compound embryonic tube of formation is 3.5~
4.5mm, internal diameter are 2~3mm.
9. preparation method as claimed in claim 5, which is characterized in that carrying out the cooling temperature of pressure in the step (5) is
15~20 DEG C, the hot-stretch temperature carried out in step (6) is 40~100 DEG C, the annealing temperature carried out in step (7) is 60~
100 DEG C, the middle cooling temperature carried out of step (8) is 5~20 DEG C.
10. preparation method as claimed in claim 5, which is characterized in that windup rate in the step (9) is 80~
120m/min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262671.3A CN108530729A (en) | 2018-03-28 | 2018-03-28 | Three layers of detonator of low temperature resistant high intensity and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262671.3A CN108530729A (en) | 2018-03-28 | 2018-03-28 | Three layers of detonator of low temperature resistant high intensity and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108530729A true CN108530729A (en) | 2018-09-14 |
Family
ID=63485336
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810262671.3A Pending CN108530729A (en) | 2018-03-28 | 2018-03-28 | Three layers of detonator of low temperature resistant high intensity and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891567A (en) * | 2009-05-22 | 2010-11-24 | 南京理工大学 | Production method for preparing detonating tube with low cost and high strength through three-layer co-extrusion and production line thereof |
| CN102690456A (en) * | 2011-03-25 | 2012-09-26 | 刘永峰 | Materials for manufacturing high-strength plastic detonating tube |
-
2018
- 2018-03-28 CN CN201810262671.3A patent/CN108530729A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101891567A (en) * | 2009-05-22 | 2010-11-24 | 南京理工大学 | Production method for preparing detonating tube with low cost and high strength through three-layer co-extrusion and production line thereof |
| CN102690456A (en) * | 2011-03-25 | 2012-09-26 | 刘永峰 | Materials for manufacturing high-strength plastic detonating tube |
Non-Patent Citations (1)
| Title |
|---|
| 吴林美等: "塑料导爆管的研究与制备", 《中国塑料》 * |
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Application publication date: 20180914 |
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