Process for the transient thermal treatment of a porous mass
    2.
    发明授权
    Process for the transient thermal treatment of a porous mass 失效
    多孔质量瞬态热处理工艺

    公开(公告)号:US3456047A

    公开(公告)日:1969-07-15

    申请号:US3456047D

    申请日:1967-06-29

    CPC classification number: C08J9/38 B29C44/56 B29C44/5609

    Abstract: Treatment of the inner surfaces of an open-cell porous mass which may be damaged by pressure waves generated by exothermic reaction of a gaseous material present in the cavities of the porous mass and in a confined space. Treatment comprises (a) a gaseous material that produces short-term heat-energy is introduced into the cavities of the porous mass and the confined space, the volume of the space being greater than that of the porous mass to be treated, so that an empty space exists between porous mass and the walls of the confined space; (b) a non-flammable and non-decomposible gaseous material is introduced into the space in amount such that the pressure wave is largely reduced but the gaseous material is not essentially removed from the cavities of the porous mass, and (c) a reaction is triggered off in the gaseous material in the cavities of the porous mass before a diffusion between the gaseous material and the non-flammable material occurs to an appreciable extent. The non-flammable material is nitrogen, and the gaseous material a mixture of natural gas (or hydrogen) and oxygen.

    Apparatus for treating articles of manufacture to eliminate superfluous projections
    3.
    发明授权
    Apparatus for treating articles of manufacture to eliminate superfluous projections 失效
    用于处理制造物品以消除超级投影的装置

    公开(公告)号:US3645521A

    公开(公告)日:1972-02-29

    申请号:US3645521D

    申请日:1970-09-02

    CPC classification number: B23D79/005 B21D26/08

    Abstract: Apparatus for the elimination (destruction or removal) of superfluous projections, such as unwanted burrs and sharp edges, or shaped or fabricated articles of manufacture utilizing means for generating a transient thermal energy release in a compressed gaseous material provided in a sealed and confined space or chamber is described. In particular, the apparatus includes article-contacting shielding means within the chamber for allowing selected portions of the article to be exposed to the thermal energy release without substantially altering the configuration and working dimensions of the article. Preferably piston means connected by conduit means to the chamber is provided to compress a combustible gaseous material in the chamber prior to the ignition of the combustible gaseous material which generates the energy release.

    Abstract translation: 用于消除(破坏或去除)诸如不期望的毛刺和锋利边缘的多余突起的装置,或者使用用于在密封和密闭的空间中提供的压缩气体材料中产生瞬态热能释放的装置的成形或制造制品,或 描述了房间。 特别地,该设备包括在室内的物品接触屏蔽装置,用于允许制品的选定部分暴露于热能释放,而基本上不改变制品的构型和工作尺寸。 优选地,通过导管装置连接到室的活塞装置被提供以在产生能量释放的可燃气体物质的点燃之前压缩腔室中的可燃气体材料。

    Apparatus for rapid high energy removal of superfluous projections

    公开(公告)号:US3666252A

    公开(公告)日:1972-05-30

    申请号:US3666252D

    申请日:1970-05-25

    Inventor: RICE EDWIN E

    CPC classification number: B23D79/005

    Abstract: A machine or apparatus for the rapid high energy (transient thermal) treatment of articles requiring removal of superfluous projections (burrs and the like) is described in which a closed chamber is formed by action of the device to contain the thermal energy and article. The closed chamber encloses void volumes adjacent to the surfaces of the articles having superfluous projections. Closure elements acting with an article support element are actuated in forming the closed chamber or vessel. At least one of the closure elements is movable for closure toward and away from the other closure element. Preferably the movable closure element actuates the article support element in a holder such that a closed chamber is formed around the article. The movable closure element moves the support element in the holder in forming the closed chamber such that when a transient thermal energy release is generated in the chamber the holder does not bear any direct loading from the energy release. Preferably, a combustible gaseous composition is injected under pressure into the chamber void space between the closed chamber cavity and articles and a rapid thermal energy release reaction is initiated after achievement of suitable charge pressure. The device of the present invention fully contains the shock of the rapid thermal energy release and the consequent pressure rise and the result of the confined chamber reaction is the removal of superfluous projections from the parts placed in the chamber. The device includes sealing means between the article support element and the closure element functioning to form the chamber. The sealing means is preferably a replaceable seal which is protected by a mated or precision fit of male and female parts between the seal and the chamber. Fuel passage means are also provided leading to the chamber cavity with valving securing the chamber against exhaust of the reaction products or residue during the reaction. The machine is adapted for sequential treatment of articles in tooling which forms the chambers and which tooling can be varied to accommodate different article space requirements. A coolant may be utilized for the tooling where required by the cycle rate of the device.

Patent Agency Ranking