Method and device for impact compression of condensable material
    262.
    发明专利
    Method and device for impact compression of condensable material 失效
    用于冲击压缩可密封材料的方法和装置

    公开(公告)号:JPS5922648A

    公开(公告)日:1984-02-04

    申请号:JP10918682

    申请日:1982-06-25

    CPC classification number: B01J3/08

    Abstract: PURPOSE:To improve the effect of a compression treatment, by placing a plate- shaped condensable material opposite to the part near the opening of a rigid vessel, providing an explosives layer on the top surface thereof and initiating the same. CONSTITUTION:A sample 1 is installed in parallel with the flat base of a vessel 2 provided with a space 3. The vessel 2 is made of a stainless steel or the like. The top surface of the sample 1 is covered with a metallic plate 4 over the entire surface and an explosives layer 5 is further provided thereon. Penthrite, hexogen, etc. are used for the kind of the layer 5. The distance of the space 3 where the sample scatters is at least >=5mm.. The explosives 5 are initiated by using only the detonator at the right or left end or in the central part at the top end of the explosives 5 or the explosives are flatly initiated.

    Abstract translation: 目的:为了改善压缩处理的效果,通过将刚性容器的开口附近的部件相对的板状可冷凝材料放置在其顶表面上并提供爆炸物层。 构成:样品1与设置有空间3的容器2的平坦基底平行地安装。容器2由不锈钢等制成。 样品1的顶表面在整个表面上覆盖有金属板4,并且还在其上设置炸药层5。 尖晶石,六方晶等用于层5的类型。样品散射的空间3的距离至少> = 5mm。炸药5仅通过在右侧或左侧的雷管使用来启动 或在爆炸物5的顶端的中央部分或爆炸物被平坦地启动。

    MANUFACTURE OF CUBIC BORON NITRIDE
    263.
    发明专利

    公开(公告)号:JPS5874512A

    公开(公告)日:1983-05-06

    申请号:JP17125081

    申请日:1981-10-26

    Abstract: PURPOSE:To inexpensively manufacture cubic boron nitride in a high yield by applying a thermodynamically stable pressure for shock wave pressurization obtd. by hitting a flying plate by the explosion of an explosive to rhombic boron nitride to cause nondiffusion type conversion. CONSTITUTION:Rhombic boron nitride purified to the utmost and having high crystallizability is pulverized to = about 80wt% metallic powder such as copper powder having

    ULTRAHIGH VOLTAGE SYNTHESIZING DEVICE

    公开(公告)号:JPS56105744A

    公开(公告)日:1981-08-22

    申请号:JP956080

    申请日:1980-01-29

    Inventor: INOUE KIYOSHI

    Abstract: PURPOSE:To compress and deform a pipe with strong electromagnetic force and compose a raw material under ultrahigh voltage by supplying impulse power to the outer pheripheral coiled device of a pipe vessel, in which the raw material is packed and sealed, from a capacitor. CONSTITUTION:Impulse power is supplied to coil 5 of feed shaver 4 from capacitor 6 when switch 7 is turned on. At the time, changing magnetic field generates around coil 5 and the magnetic field acts on opposite pipe vessel concentratedly from the convex part 41 of shaver. Induced current flows into pipe 1 and strong electromagnetic force which can depress pipe 1 by the interaction of the induced current and deformation magnetic field acts on pipe 1, so that pipe 1 is compressed and deformed and impact force is applied to raw material 3 inside the pipe from the periphery to the center.

    266.
    发明专利
    失效

    公开(公告)号:JPS5618533B2

    公开(公告)日:1981-04-30

    申请号:JP16372478

    申请日:1978-12-27

    PRESSURE APPARATUS GIVING MICROSCOPIC DISTORTION TO POWDERED SAMPLE AND APPARATUS FOR SYNTHESIS OF DIAMOND OR CUBIC SYSTEM BORON NITRIDE

    公开(公告)号:JPS5556829A

    公开(公告)日:1980-04-26

    申请号:JP12956678

    申请日:1978-10-23

    Inventor: KAWADA KAORU

    Abstract: PURPOSE:To synthesize diamond or cubic system boron nitride by giving dynamic collision energy from a ram through a punch indirectly to powdered sample thereby the powdered sample is microscopically distorted. CONSTITUTION:A cylinder 11 and a cradle 12 are mounted on a lower board 6. The cradle 12 is fitted to the cylinder 11. A set of the cylinder 11, the cradle 12 and a punch 13 is inserted into a support block 14 in the form of a sleeve to form an assembly. The assembly is fixed on the lower board 6. The central convex part 16 of the cradle 12 is fitted to a through-hole 15 within the cylinder 11. There is a space on the central convex part 16. A sample 17 and a punch 13 are arranged within the space. The punch 13 is arranged within the cylinder 11 and the convex end from the cylinder 11 is struck with a ram 7. As this shock is given by free drop or forced frop of the ram 7, collision energy is given through the punch 13 to the sample 17.

    SYNTHESIZING METHOD FOR CUBIC SYSTEM BORON NITRIDE

    公开(公告)号:JPS5556004A

    公开(公告)日:1980-04-24

    申请号:JP12956278

    申请日:1978-10-23

    Inventor: KAWADA KAORU

    Abstract: PURPOSE:To reduce the time required to convert a reaction sample contg. hexagonal system boron nitride into cubic system boron nitride and to raise percentage of recovery by holding the sample at a predetermined high temp. and applying a high press. as a dynamic press. due to striking energy to the sample. CONSTITUTION:Hexagonal system boron nitride 1 press formed into, e.g. a cylindrical shape is put into alumina pipe 2, and a little H2O is added as catalyst. Platinum resistance wire 3 is wound round pipe 2, and pipe 2 is buried in talc press. medium 4. Medium 4 is then set in cylinder 6 combined with lower punch 5, and upper punch 7 is mounted on medium 4. After heating pipe 2 to 1300 deg.C by supplying an electric current to wire 3, the ram of a forging machine is dropped onto punch 7 to apply striking energy of 3 tons meter or more to sample 1. Thus, the resulting hexagonal system boron nitride is recovered by almost 100%. By adding a flux to sample 1 hexagonal system boron nitride is obtd. more reliably. The flux usually includes Ia, IIa and IIIa group elements and metallic elements such as Sb and Sn.

Patent Agency Ranking