Method of manufacturing powder bodies of borides, carbides or nitrides
    1.
    发明授权
    Method of manufacturing powder bodies of borides, carbides or nitrides 失效
    制造硼化物,碳化物或氮化物的粉末体的方法

    公开(公告)号:US4007251A

    公开(公告)日:1977-02-08

    申请号:US518150

    申请日:1974-10-25

    Abstract: For hydrostatically hot pressing bodies of borides, carbides or nitrides of titanium, zirconium or chromium from a powder having an excess of boron, carbon or nitrogen, the power is enclosed in a sealed container of a material which forms compounds with boron, carbon or nitrogen which have a melting point at least equal to that of the material of the container. Container materials may be for example metals from Group IVb of the Periodic System, particularly titanium and zirconium or their alloys in the case of titanium or chromium compounds and zirconium or zirconium base alloys in the case of zirconium compounds. This allows pressing at temperatures of up to 1700.degree.-1800.degree. C, which is high enough to cause bonding between the powder grains.

    Abstract translation: 对于由具有过量硼,碳或氮的粉末的钛,锆或铬的硼化物,碳化物或氮化物的静压热压体,将功率封闭在与硼,碳或氮形成化合物的密封容器中 其熔点至少等于容器材料的熔点。 容器材料可以是例如在锆化合物的情况下,定期系统的IVb族的金属,特别是在钛或铬化合物和锆或锆基合金的情况下的钛和锆或它们的合金。 这允许在高达1700°-1800℃的温度下进行压制,其足够高以引起粉末颗粒之间的结合。

    Method of sealing hot isostatic containers
    2.
    发明授权
    Method of sealing hot isostatic containers 失效
    密封热等静压容器的方法

    公开(公告)号:US4178178A

    公开(公告)日:1979-12-11

    申请号:US856535

    申请日:1977-12-01

    CPC classification number: B22F3/15 B22F3/1258

    Abstract: Disclosed is a method and structure for manufacturing solid bodies from a quantity of powder. The powder is preformed and the preform is enclosed in a casing provided with an evacuation nozzle. The preform and the casing are preheated and the preform is degassed by evacuating the casing through the nozzle after the casing has been appropriately evacuated. The nozzle is then sealed by heating the same to forging temperatures, compressing the end thereof which is remote from the casing, cutting the compressed end of the nozzle to present a straight edge and thereafter welding the nozzle shut along said edge. After the nozzle has been sealed the same is enclosed in and surrounded by a gas tight hood and the space between the hood and the nozzle is filled with a fill material which may be a powder, an annular solid body or a combination of such body and a quantity of powder. After the nozzle has been appropriately shielded and covered by the hood and fill material, the casing with the powder preform therein is placed in a high pressure furnace where the preform is subjected to isostatic high pressure hot pressing.

    Abstract translation: 公开了一种从一定数量的粉末制造固体的方法和结构。 预成型粉末,将预成型件封闭在设有排气喷嘴的壳体中。 预成型件和套管被预热,并且在壳体被适当地抽空之后,通过将套管抽出通过喷嘴将预制件脱气。 然后通过将喷嘴加热至锻造温度,将其远离壳体的端部压缩,切割喷嘴的压缩端以呈现直线边缘,然后沿着所述边缘焊接喷嘴来密封喷嘴。 在喷嘴被密封之后,它被封闭并被气密罩围绕,并且罩和喷嘴之间的空间填充有填充材料,填充材料可以是粉末,环形固体或这种主体和 一定数量的粉末。 在喷嘴被罩盖和填充材料适当地屏蔽并覆盖之后,将其中具有粉末预制件的壳体放置在高压炉中,其中预成型件经受等静压高压热压。

    Method of manufacturing a sintered powder body
    3.
    发明授权
    Method of manufacturing a sintered powder body 失效
    制造烧结体的方法

    公开(公告)号:US4339271A

    公开(公告)日:1982-07-13

    申请号:US919916

    申请日:1978-06-28

    CPC classification number: B22F3/125 B22F3/1266

    Abstract: A shaped body is formed by cold-pressing a powdered material into a desired shape and then providing thereon a surface layer of a material having a lower melting point than the powder of the shaped body. The shaped body is then placed in a furnace connectable to vacuum equipment, wherein the pressure is first lowered to a value lower than atmospheric pressure and then the temperature is increased so that the material of the surface layer melts. Thereafter the body is isostatically hot-pressed under the direct influence of an inert, gaseous pressure medium, the powder particles being thus bound together to high density by pressure sintering.

    Abstract translation: 通过将粉末状材料冷压成所需形状然后在其上提供具有比成形体粉末低的熔点的材料的表面层来形成成形体。 然后将成形体放置在可连接到真空设备的炉中,其中压力首先降低到低于大气压力的值,然后升高温度,使得表面层的材料熔化。 此后,体系在惰性气体压力介质的直接影响下被均匀热压,粉末颗粒通过加压烧结而结合在一起,达到高密度。

    Bushing for electrical leads
    5.
    发明授权
    Bushing for electrical leads 失效
    套管用于电线

    公开(公告)号:US4309568A

    公开(公告)日:1982-01-05

    申请号:US865683

    申请日:1977-12-29

    CPC classification number: H01B17/306

    Abstract: An electrical bushing is provided to facilitate the passage of electrical conductor leads from thermocouples or the like through a pressure barrier. The bushing includes a casing and a deformable, resilient, elastic plug which is disposed in a central conductor receiving bore of the casing in surrounding relationship to the conductors. Thus, when the plug is compressed in a direction axially of the casing, the plug tends to expand laterally radially and into sealing contact with the internal surfaces of the bore and with the electrical conductors.

    Abstract translation: 提供电气套管以便于电导体引线从热电偶等通过压力屏障。 衬套包括壳体和可变形的弹性弹性塞子,其以导体的周围关系布置在壳体的中心导体接收孔中。 因此,当塞子沿着壳体轴向的方向被压缩时,插塞倾向于径向横向膨胀并与孔的内表面和电导体密封接触。

    Furnace for the high temperature-high pressure treatment of materials
which includes pressure medium circulation channels
    6.
    发明授权
    Furnace for the high temperature-high pressure treatment of materials which includes pressure medium circulation channels 失效
    用于高温高压处理的炉子,包括压力介质循环通道

    公开(公告)号:US4131419A

    公开(公告)日:1978-12-26

    申请号:US798863

    申请日:1977-05-20

    CPC classification number: B30B11/002 B01J3/048 B22F3/15

    Abstract: A high temperature-high pressure furnace which includes a cylindrical pressure chamber formed of a hollow cylindrical wall and two end closures therefor, a cylindrical sheath positioned within the cylindrical wall to provide a gap therebetween, and heaters positioned within the cylindrical sheath in order to provide a furnace space therewithin. The sheath at one end is sealingly connected to one of the end closures and at the other end is provided with a channel to provide fluid communication between the furnace space and the gap when an insulating lid is positioned over this other end of the sheath. The end closure to which the sheath is sealingly connected is provided with passageways which allow for fluid circulation therethrough and between the gap and the furnace space.

    Abstract translation: 一种高温高压炉,其包括由中空圆柱形壁和两个端部封闭件形成的圆柱形压力室,位于圆柱形壁内以在其间提供间隙的圆柱形护套和位于圆柱形护套内的加热器,以便提供 其中的炉子空间。 一端的护套密封地连接到一个端盖,另一端设有通道,用于当绝缘盖定位在护套的另一端上时,在炉间和间隙之间提供流体连通。 护套被密封地连接到的端盖设置有允许流体循环通过其中以及在间隙和炉空间之间的通道。

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