CN204400869U - Soft industrial primacord fuse - Google Patents
Soft industrial primacord fuse Download PDFInfo
- Publication number
- CN204400869U CN204400869U CN201420752190.8U CN201420752190U CN204400869U CN 204400869 U CN204400869 U CN 204400869U CN 201420752190 U CN201420752190 U CN 201420752190U CN 204400869 U CN204400869 U CN 204400869U
- Authority
- CN
- China
- Prior art keywords
- wrapped
- primacord fuse
- medicine core
- industrial
- inner cladding
- 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.)
- Expired - Fee Related
Links
- 239000004743 Polypropylene Substances 0.000 claims abstract description 18
- 239000003814 drug Substances 0.000 claims abstract description 18
- 229920001155 polypropylene Polymers 0.000 claims abstract description 18
- -1 polypropylene Polymers 0.000 claims abstract description 17
- 238000005253 cladding Methods 0.000 claims abstract description 14
- 239000011247 coating layer Substances 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 238000004880 explosion Methods 0.000 abstract description 7
- 239000002360 explosive Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000005422 blasting Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000012797 qualification Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Landscapes
- Materials For Medical Uses (AREA)
Abstract
A kind of soft industrial primacord fuse, belongs to industrial explosive material technical field, particularly relates to a kind of soft industrial primacord fuse.This primacord fuse plays propagation of explosion and fired charge in blasting works, is applicable to generally outdoor and without the place of biogas, coal seam explosion hazard, is specially adapted to use in extremely frigid zones engineering explosion.The utility model provides a kind of can meet the soft industrial primacord fuse that conventional environment can meet again the smooth in appearance that extremely frigid zones uses.The utility model comprises heart yearn, is wrapped with medicine core at heart yearn, is wrapped with medicine core coating layer at medicine core, inner cladding is wrapped with at medicine core coating layer, covering in inner cladding is wrapped with, is wrapped with external coating (EC) at middle covering, and the end of primacord fuse is provided with moistureproof cap; Described middle covering and inner cladding adopt polypropylene filament yarn.
Description
Technical field
The utility model belongs to industrial explosive material technical field, particularly relates to a kind of soft industrial primacord fuse.This primacord fuse plays propagation of explosion and fired charge in blasting works, is applicable to generally outdoor and without the place of biogas, coal seam explosion hazard, is specially adapted to use in extremely frigid zones engineering explosion.
Background technology
At present, the primacord fuse that existing production line is produced is plastic detonating cord, and plastic detonating cord is made up of polypropylene flat-filament.Polypropylene flat-filament is stiff, and snappiness is poor, causes product appearance rough, and is not suitable in extremely frigid zones engineering explosion and uses.
Utility model content
For prior art Problems existing, the utility model provides a kind of can meet the soft industrial primacord fuse that conventional environment can meet again the smooth in appearance that extremely frigid zones uses.
To achieve these goals, the utility model adopts following technical scheme, a kind of soft industrial primacord fuse, comprise heart yearn, be wrapped with medicine core at heart yearn, be wrapped with medicine core coating layer at medicine core, inner cladding is wrapped with at medicine core coating layer, covering in inner cladding is wrapped with, is wrapped with external coating (EC) at middle covering, and the end of primacord fuse is provided with moistureproof cap; Described middle covering and inner cladding adopt polypropylene filament yarn.
The beneficial effects of the utility model:
Because covering in soft industrial primacord fuse of the present utility model and inner cladding adopt polypropylene filament yarn looping, therefore product is soft, can meet conventional environment and can meet again extremely frigid zones use, and smooth in appearance; There is not phenomenon of bending when extremely frigid zones uses, do not have when doing sailor's knot and return loose phenomenon.
Soft industrial primacord fuse of the present utility model has carried out large batch of test at existing production line, and has carried out elongation and flexibility test.
Elongation rate test adopts two kinds of products of polypropylene filament yarn and polypropylene flat-filament looping to compare, and use in test the pulling force of 50kg to test, in process of the test, the product of two kinds of looping materials all has certain elongation, and the product elongation of polypropylene filament yarn looping is large; Through repeatedly doing performance test display to kind of the product of two after tensile test, the performance index of soft industrial primacord fuse of the present utility model meet the requirements, and elongation does not affect performance index and the using function of product.
Flexibility test adopts two kinds of products of polypropylene filament yarn and polypropylene flat-filament looping to compare, two volume products of good for dish normal rice number are launched simultaneously, the amount that the amount that soft industrial primacord fuse of the present utility model bends is more bending than the product of polypropylene flat-filament looping is little, this test illustrates: the snappiness of soft industrial primacord fuse of the present utility model is better than the product snappiness of polypropylene flat-filament looping, comparatively easy when doing sailor's knot, and be not easy to return pine.
Through trial-production and batch trial production, the raw material supply of soft industrial primacord fuse of the present utility model is stablized, and product structure is reasonable, production technique is feasible, product performance meet the requirement of standard GB/T-9786-1999 " common primacord fuse ", and product is soft, can reduce product cost aborning.
Production is criticized in the qualification that this product completes 3 myriametres altogether, produces smoothly, and carry out batching by 2 myriametre one qualification batch, and carry out stochastic sampling by standard GB/T-9786-1999 " common primacord fuse ", carry out type inspection, full item performance test is qualified.Criticize the qualification of having produced and use at extremely frigid zones, product is in use qualified, can meet client's needs.
Soft industrial primacord fuse of the present utility model is particularly suitable for using in the ground flat hole of extremely frigid zones.
Accompanying drawing explanation
Fig. 1 is the structural representation of soft industrial primacord fuse of the present utility model;
In figure: the moistureproof cap of 1-, 2-external coating (EC), covering in 3-, 4-inner cladding, 5-medicine core coating layer, 6-medicine core, 7-heart yearn.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of soft industrial primacord fuse, comprise heart yearn 7, medicine core 6 is wrapped with at heart yearn 7, be wrapped with medicine core coating layer 5 at medicine core 6, be wrapped with inner cladding 4 at medicine core coating layer 5, covering 3 in inner cladding 4 is wrapped with, be wrapped with external coating (EC) 2 at middle covering 3, the end of primacord fuse is provided with moistureproof cap 1; Described middle covering 3 and inner cladding 4 adopt polypropylene filament yarn.
Looping material polypropylene filament yarn is a kind of polypropylene fibre, and snappiness is better, belongs to polypropylene types together, consistent with in explosive consistency, security with polypropylene flat-filament.Twice test process through rope processed, extrusion molding two procedures confirms: product structure is feasible, and product explosive load meets the requirements, and powder charge is even, and production process can normally be carried out.
Claims (1)
1. a soft industrial primacord fuse, it is characterized in that comprising heart yearn, medicine core is wrapped with at heart yearn, medicine core coating layer is wrapped with at medicine core, inner cladding is wrapped with at medicine core coating layer, covering in inner cladding is wrapped with, is wrapped with external coating (EC) at middle covering, and the end of primacord fuse is provided with moistureproof cap; Described middle covering and inner cladding adopt polypropylene filament yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752190.8U CN204400869U (en) | 2014-12-03 | 2014-12-03 | Soft industrial primacord fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752190.8U CN204400869U (en) | 2014-12-03 | 2014-12-03 | Soft industrial primacord fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204400869U true CN204400869U (en) | 2015-06-17 |
Family
ID=53424748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420752190.8U Expired - Fee Related CN204400869U (en) | 2014-12-03 | 2014-12-03 | Soft industrial primacord fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204400869U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106278773A (en) * | 2016-08-01 | 2017-01-04 | 中国水利水电第六工程局有限公司 | A kind of waterproof method for plastic detonating cord end |
| CN111138237A (en) * | 2020-01-19 | 2020-05-12 | 陕西渭南庆华化工有限公司 | Low-energy flexible detonating cord |
-
2014
- 2014-12-03 CN CN201420752190.8U patent/CN204400869U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106278773A (en) * | 2016-08-01 | 2017-01-04 | 中国水利水电第六工程局有限公司 | A kind of waterproof method for plastic detonating cord end |
| CN106278773B (en) * | 2016-08-01 | 2019-04-23 | 中国水利水电第六工程局有限公司 | A kind of waterproof method for plastic detonating cord end |
| CN111138237A (en) * | 2020-01-19 | 2020-05-12 | 陕西渭南庆华化工有限公司 | Low-energy flexible detonating cord |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 |