IE39827L - High pressure chamber. - Google Patents

High pressure chamber.

Info

Publication number
IE39827L
IE39827L IE741814A IE181474A IE39827L IE 39827 L IE39827 L IE 39827L IE 741814 A IE741814 A IE 741814A IE 181474 A IE181474 A IE 181474A IE 39827 L IE39827 L IE 39827L
Authority
IE
Ireland
Prior art keywords
pressure
medium
volume
cylinder
chamber
Prior art date
Application number
IE741814A
Other versions
IE39827B1 (en
Inventor
P A Sigurdsson
Original Assignee
Sigurdssons Mek Verkstad
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 Sigurdssons Mek Verkstad filed Critical Sigurdssons Mek Verkstad
Publication of IE39827L publication Critical patent/IE39827L/en
Publication of IE39827B1 publication Critical patent/IE39827B1/en

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
    • B01J3/065—Presses for the formation of diamonds or boronitrides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/004—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses involving the use of very high pressures
    • 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
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/0605—Composition of the material to be processed
    • B01J2203/061—Graphite
    • 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
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/065—Composition of the material produced
    • B01J2203/0655—Diamond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Ceramic Products (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

1483649 High pressure apparatus SIGURDSSONS MEK VERKSTAD 6 Sept 1974 [14 Sept 1973] 39115/74 Heading B1X A method of increasing the pressure exerted on a material in a high-pressure chamber to a desired level and maintaining the pressure for the desired time, and, if desired, controlling the pressure at that level, is effected by means of a first pressure-exerting force acting on the material throughout the duration of the pressure treatment, the method also including the steps of compressing a preselected volume of a pressure compensating medium which is in the liquid state up to the maximum working pressure to a selected, adjustable pressure lower than the first-mentioned pressure by means of second pressureexerting force in such a way as to cause the pressure of the medium to react, during the pressurising phase, on the force generating the first-mentioned pressure, and causing the pressure of the medium, should it deviate from the selected value, to be restored by regulating the volume and/or the pressure of the medium. Where the volume of the material under pressure is reduced as a result of reaction or phase conversion, the applied pressure may be maintained at a constant value by a controlled reduction of the volume of the medium. In one embodiment, a high pressure apparatus comprises a pressure cylinder 1, a central reaction chamber 2 for material 5, and two pressure pistons 3 attached to presses 4. The cylinder is surrounded by three concentric steel jackets, 6, 7, 8. Gaps 10 and chamber 11 are filled with a hydraulic liquid, preferably oil, which forms a support pressure medium and a pressure compensating medium for the pressure cylinder and the pistons. The spaces 10 and 11 are connected via a channel 14 to a valve 15, set to open at a selected pressure. The method and apparatus is for the emission of graphite to synthetic diamonds and for making boron nitride crystals under controlled pressure/temperature conditions. [SE7312538L]
IE1814/74A 1973-09-14 1974-09-02 A method of increasing pressure and an apparatus for performing the method IE39827B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7312538A SE376867B (en) 1973-09-14 1973-09-14

Publications (2)

Publication Number Publication Date
IE39827L true IE39827L (en) 1975-03-14
IE39827B1 IE39827B1 (en) 1979-01-03

Family

ID=20318538

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1814/74A IE39827B1 (en) 1973-09-14 1974-09-02 A method of increasing pressure and an apparatus for performing the method

Country Status (7)

Country Link
JP (1) JPS588891B2 (en)
DE (1) DE2442952C2 (en)
FR (1) FR2243728B1 (en)
GB (1) GB1483649A (en)
IE (1) IE39827B1 (en)
SE (1) SE376867B (en)
ZA (1) ZA745693B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106984245A (en) * 2017-04-29 2017-07-28 河南飞孟金刚石工业有限公司 A kind of powered release technique of black diamond

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104941518B (en) * 2014-03-24 2017-02-15 中国石油化工股份有限公司 Dissolving kettle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE352840B (en) * 1969-12-12 1973-01-15 Radiator Ets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106984245A (en) * 2017-04-29 2017-07-28 河南飞孟金刚石工业有限公司 A kind of powered release technique of black diamond

Also Published As

Publication number Publication date
JPS588891B2 (en) 1983-02-18
GB1483649A (en) 1977-08-24
DE2442952C2 (en) 1987-03-05
JPS5081990A (en) 1975-07-03
FR2243728A1 (en) 1975-04-11
FR2243728B1 (en) 1981-03-27
SE7312538L (en) 1975-03-17
ZA745693B (en) 1975-10-29
DE2442952A1 (en) 1975-03-20
IE39827B1 (en) 1979-01-03
SE376867B (en) 1975-06-16

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