FR2256777A1 - Explosive pressure chamber to convert materials properties - particul-arly graphite into a conglomeration of shiny crystals of great hardness - Google Patents

Explosive pressure chamber to convert materials properties - particul-arly graphite into a conglomeration of shiny crystals of great hardness

Info

Publication number
FR2256777A1
FR2256777A1 FR7500366A FR7500366A FR2256777A1 FR 2256777 A1 FR2256777 A1 FR 2256777A1 FR 7500366 A FR7500366 A FR 7500366A FR 7500366 A FR7500366 A FR 7500366A FR 2256777 A1 FR2256777 A1 FR 2256777A1
Authority
FR
France
Prior art keywords
particul
arly
conglomeration
graphite
pressure chamber
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.)
Granted
Application number
FR7500366A
Other languages
French (fr)
Other versions
FR2256777B3 (en
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.)
SOMEBOR
Original Assignee
SOMEBOR
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 SOMEBOR filed Critical SOMEBOR
Publication of FR2256777A1 publication Critical patent/FR2256777A1/en
Application granted granted Critical
Publication of FR2256777B3 publication Critical patent/FR2256777B3/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
    • B01J3/08—Application of shock waves for chemical reactions or for modifying the crystal structure of substances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • F42B1/02—Shaped or hollow charges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D3/00—Particular applications of blasting techniques

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

In order to change its properties a mass of material is converted by explosive pressure between a coaxial pair of hollow, explosive charges which are fired simultaneously within an explosion chamber inside a massively strong block. Residual gases from the conversion should be evacuated at a controlled rate, e.g. by way of vent passages initially blocked with fusible plugs of differing characteristics which give way progressively as the explosion heat and pressure rise.
FR7500366A 1974-01-08 1975-01-07 Explosive pressure chamber to convert materials properties - particul-arly graphite into a conglomeration of shiny crystals of great hardness Granted FR2256777A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE809485 1974-01-08

Publications (2)

Publication Number Publication Date
FR2256777A1 true FR2256777A1 (en) 1975-08-01
FR2256777B3 FR2256777B3 (en) 1977-09-30

Family

ID=3860953

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7500366A Granted FR2256777A1 (en) 1974-01-08 1975-01-07 Explosive pressure chamber to convert materials properties - particul-arly graphite into a conglomeration of shiny crystals of great hardness

Country Status (2)

Country Link
DE (1) DE2500152A1 (en)
FR (1) FR2256777A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184430A (en) * 1977-06-29 1980-01-22 Jet Research Center, Inc. Method and apparatus for severing tubing
US5271726A (en) * 1992-05-26 1993-12-21 E. I. Du Pont De Nemours And Company Apparatus for explosive shocking of materials
GB2351797A (en) 1999-07-02 2001-01-10 Delta K Explosive Engineering Explosive device for triggering avalanches
ATE357642T1 (en) * 1999-10-01 2007-04-15 Kevin Mark Powell METHOD FOR BLASTING SNOW OR ICE FORMATIONS, ESPECIALLY FOR AVALANCHE CONTROL

Also Published As

Publication number Publication date
FR2256777B3 (en) 1977-09-30
DE2500152A1 (en) 1975-07-10

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