CN1535940A - Second delay fuse - Google Patents
Second delay fuse Download PDFInfo
- Publication number
- CN1535940A CN1535940A CNA031120954A CN03112095A CN1535940A CN 1535940 A CN1535940 A CN 1535940A CN A031120954 A CNA031120954 A CN A031120954A CN 03112095 A CN03112095 A CN 03112095A CN 1535940 A CN1535940 A CN 1535940A
- Authority
- CN
- China
- Prior art keywords
- delay
- safety fuse
- fuse
- powder
- prescription
- 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.)
- Pending
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- Fuses (AREA)
Abstract
The present invention relates to a blasting fuse, specially it is a second delay blasting fuse. It adopts black powder as delay composition, its production process is identical to that of general fuse, the delay composition formkula contains S (potassium nitrate), K (sulfur powder) and C (wood charcoal powder), their weight portion ratio is as follows: S (16-21), K 64-76 and C 7-19. Said invented blasting fuse has good combustion property, high combustion accuracy and long storage time, and its production process is simple and cost is low.
Description
Technical field
The present invention relates to a kind of safety fuse, particularly a kind of second delay safety fuse.
Background technology
The second delay safety fuse is the key part of second delay electric detonator, and it is to control all kinds of defer times with the fixed length safety fuse.Second delay safety fuse of the prior art mostly adopts special gunpowder proportioning as delay powder, it as the disclosed patent No. of State Patent Office 85107420 application for a patent for invention, it is mixed by antimonous oxide, silica flour and cupric oxide and makes, and can assemble 0.25 second to 6 seconds electric delay detonator.
Summary of the invention
The present invention is that the employing black powder is a delay powder, and its production technique is identical with the technology of common safety fuse, and the prescription of delay powder is: the weight part of S (saltpetre), K (SULPHUR POWDER), C (wood charcoal powder) is as follows: S:16-21, K:64-76, C:7-19.Utilize above prescription can produce different combustionvelocity safety fuse.With the length computation of the 10 centimetres of units that burn, its prescription is as follows: S:19, and K:64 C:17, be 8-11 second safety fuse combustion time of this composition
S:21, K:64 C:15, be 12-20 second safety fuse combustion time of this composition
S:18, K:74 C:8, be 21-29 second safety fuse combustion time of this composition
S:17, K:76 C:7, be 30-36 second safety fuse combustion time of this composition
More than the manufacturing parameter of Pei Fang safety fuse is
Heart yearn: 28 * 3 * 4
Interior layer line: 60 * 10 * 13
Internal layer paper: 24MM
Zero line: 60 * 8 * 10
Middle level paper: 24MM
Outer paper: 15MM
Coating: Vinyl Acetate Copolymer
Outer layer line: 28 * 4 * 10
Safety fuse of the present invention has and has good burning performance, the combustion accuracy height, the storage time is long, produce simple, the advantage that cost is low.
Claims (5)
1, a kind of second delay safety fuse is to be that delay powder produces with black powder, its prescription following (weight part): S:16-21, K:64-76, C:7-19.
2, a kind of second delay safety fuse according to claim 1, it is characterized in that: filling a prescription is: S:19, K:64, C:17.
3, a kind of second delay safety fuse according to claim 1, it is characterized in that: filling a prescription is: S:21, K:64, C:15.
4, a kind of second delay safety fuse according to claim 1, it is characterized in that: filling a prescription is: S:18, K:74, C:8.
5, a kind of second delay safety fuse according to claim 1, it is characterized in that: filling a prescription is: S:17, K:76, C:7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031120954A CN1535940A (en) | 2003-04-04 | 2003-04-04 | Second delay fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031120954A CN1535940A (en) | 2003-04-04 | 2003-04-04 | Second delay fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1535940A true CN1535940A (en) | 2004-10-13 |
Family
ID=34319852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031120954A Pending CN1535940A (en) | 2003-04-04 | 2003-04-04 | Second delay fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1535940A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103749221A (en) * | 2014-01-20 | 2014-04-30 | 宁夏回族自治区气象科学研究所 | Orchard frost-prevention smoke bomb and manufacture |
-
2003
- 2003-04-04 CN CNA031120954A patent/CN1535940A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103749221A (en) * | 2014-01-20 | 2014-04-30 | 宁夏回族自治区气象科学研究所 | Orchard frost-prevention smoke bomb and manufacture |
| CN103749221B (en) * | 2014-01-20 | 2015-09-23 | 宁夏回族自治区气象科学研究所 | Orchard frost prevention smoke aerosol bomb and manufacture method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |