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FR2046583A5 - Delay action layers for detonators - Google Patents

Delay action layers for detonators

Info

Publication number
FR2046583A5
FR2046583A5 FR7015637A FR7015637A FR2046583A5 FR 2046583 A5 FR2046583 A5 FR 2046583A5 FR 7015637 A FR7015637 A FR 7015637A FR 7015637 A FR7015637 A FR 7015637A FR 2046583 A5 FR2046583 A5 FR 2046583A5
Authority
FR
France
Prior art keywords
delay action
detonators
layers
delay
paste
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
Application number
FR7015637A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe dExplosifs et Produits Chimiques SA
Original Assignee
Societe dExplosifs et Produits Chimiques SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Societe dExplosifs et Produits Chimiques SA filed Critical Societe dExplosifs et Produits Chimiques SA
Priority to FR7015637A priority Critical patent/FR2046583A5/en
Application granted granted Critical
Publication of FR2046583A5 publication Critical patent/FR2046583A5/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/16—Pyrotechnic delay initiators
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C7/00—Non-electric detonators; Blasting caps; Primers
    • C06C7/02—Manufacture; Packing

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)

Abstract

The delay action layers are interposed between the primary detonating explosive and the ignition layers in tubes machined from brass or aluminium alloy; the burning time depends upon the delay action required. The oxidation reduction mixtures used in delay and short delay action detonators are based on silicon and red lead and/or lead dioxide which burn without releasing gases. To improve the compacting properties and mixture is made into granules by mixing with collodion and passing the paste through a sieve. The extrusions of the paste are dried to remove the solvent, broken up and graded between two sieves with openings of 200 and 400 microns.
FR7015637A 1970-04-29 1970-04-29 Delay action layers for detonators Expired FR2046583A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7015637A FR2046583A5 (en) 1970-04-29 1970-04-29 Delay action layers for detonators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7015637A FR2046583A5 (en) 1970-04-29 1970-04-29 Delay action layers for detonators

Publications (1)

Publication Number Publication Date
FR2046583A5 true FR2046583A5 (en) 1971-03-05

Family

ID=9054812

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7015637A Expired FR2046583A5 (en) 1970-04-29 1970-04-29 Delay action layers for detonators

Country Status (1)

Country Link
FR (1) FR2046583A5 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478808A1 (en) * 1980-03-21 1981-09-25 France Etat PYROTECHNIC DELAY MODULE AND LOADING METHOD THEREOF
EP0324371A2 (en) * 1988-01-09 1989-07-19 Dynamit Nobel Aktiengesellschaft Initiator having a long delay
TR23769A (en) * 1989-11-20 1990-09-12 Baykal Makina San Ve Tic A S HYDRO-MECHANICAL BALANCING SYSTEM WITH MECHANICAL STOP AND REDUEKTOER THIN ADJUSTMENT CONTROL IN HYDRAULIC ABKANT PRESSES

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478808A1 (en) * 1980-03-21 1981-09-25 France Etat PYROTECHNIC DELAY MODULE AND LOADING METHOD THEREOF
EP0036810A1 (en) * 1980-03-21 1981-09-30 ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement Process for charging a pyrotechnic delay unit
EP0324371A2 (en) * 1988-01-09 1989-07-19 Dynamit Nobel Aktiengesellschaft Initiator having a long delay
EP0324371A3 (en) * 1988-01-09 1989-11-02 Dynamit Nobel Aktiengesellschaft Initiator having a long delay
TR23769A (en) * 1989-11-20 1990-09-12 Baykal Makina San Ve Tic A S HYDRO-MECHANICAL BALANCING SYSTEM WITH MECHANICAL STOP AND REDUEKTOER THIN ADJUSTMENT CONTROL IN HYDRAULIC ABKANT PRESSES

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Legal Events

Date Code Title Description
ST Notification of lapse