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    Molded explosive bodies having variable detonation speeds
    2.
    发明授权
    Molded explosive bodies having variable detonation speeds 失效

    公开(公告)号：US3925122A

    公开(公告)日：1975-12-09

    申请号：US1487670

    申请日：1970-02-12

    Applicant: DYNAMIT NOBEL AG

    Inventor： BERTHMANN ADOLF ,  MARTIN GERHARD ,  KLUNSCH MAXIMILIAN

    IPC: C06B23/00 ,  C06B25/32 ,  F42B1/00

    CPC classification number: C06B23/003 ,  C06B25/32

    Abstract: Process of manufacturing molded explosive bodies so that their detonation speeds can be varied within a defined range by reducing the density of the molded body. The reduction in density can be effected by incorporating into the starting components, porous, voluminous or air containing materials. The solidification of the resulting compositions is thereafter carried out by incorporating into the above starting components a suitable binding agent, varying the working pressure in the forming of the bodies, or suitably regulating the sintering conditions. The resultant bodies are characterized by their reduced densities and therewith reduced detonation speeds and by their high mechanical strengths.

    Molded explosive bodies having variable detonation speeds
    3.
    发明授权
    Molded explosive bodies having variable detonation speeds 失效
    具有可变爆轰速度的模制爆炸体

    公开(公告)号：US3619306A

    公开(公告)日：1971-11-09

    申请号：US3619306D

    申请日：1968-09-12

    Applicant: DYNAMIT NOBEL AG

    Inventor： BERTHMANN ADOLF ,  MARTIN GERHARD ,  KLUNSCH MAXIMILIAN

    IPC: C06B21/00 ,  C06B23/00 ,  F42B1/00

    CPC classification number: C06B21/0033 ,  C06B21/005 ,  C06B23/003

    Abstract: Process of manufacturing molded explosive bodies so that their detonation speeds can be varied within a defined range by reducing the density of the molded body. The reduction in density can be effected by incorporating into the starting components, porous, voluminous or air-containing materials. The solidification of the resulting compositions is thereafter carried out by incorporating into the above starting components a suitable binding agent, varying the working pressure in the forming of the bodies, or suitably regulating the sintering conditions. The resultant bodies are characterized by their reduced densities and therewith reduced detonation speeds and by their high-mechanical strengths.

    Method for increasing the safety against firedamp ignitions during blasting in underground mining and blasting elements used for said purpose
    5.
    发明授权
    Method for increasing the safety against firedamp ignitions during blasting in underground mining and blasting elements used for said purpose 失效
    地下采矿和喷砂元件爆破期间防火墙点火安全的方法

    公开(公告)号：US3648614A

    公开(公告)日：1972-03-14

    申请号：US3648614D

    申请日：1969-03-18

    Applicant: DYNAMIT NOBEL AG

    Inventor： BERTHMANN ADOLF ,  MORHENN ERNST ,  LINGENS PAUL

    IPC: F42D1/26 ,  F42D5/00

    CPC classification number: F42D1/26

    Abstract: The present disclosure is directed to a method for preventing firedamp ignitions during blasting in underground mining which comprises separating the space where the explosive charge is to be detonated from the space where the firedamp is present by providing therebetween a zone containing a layer in the form of, for example, a paste or a foam containing a liquid in a uniform distribution. The present disclosure is also directed to blasting elements for preventing said firedamp ignitions.

    Abstract translation: 本公开涉及一种用于在地下采矿中防止喷砂期间的燃烧器点火的方法，其包括通过在其间设置包含以下形式的层的区域来分离要被引爆的炸药的所在空间： 例如，含有均匀分布的液体的糊状物或泡沫体。 本公开还涉及用于防止所述燃烧器点火的爆破元件。

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