摘要:
A rupture resistant system is provided and comprises a tank comprising a top member, a combined body member, the combined body member forming a side and bottom of the tank, the combined body member comprising at least one curved non-linear surface to define a partially curved interior in at least a portion of the tank; and a component situated within the tank and susceptible to creating increasing pressure within the tank when under a fault condition. At least one of the top, sidewall, and bottom members is connected to another of the top, sidewall, and bottom members in a manner so as to cause an increase in inner volume of the tank under increased pressure conditions.
摘要:
A rupture resistant system is provided and comprises a tank comprising a top member, a combined body member, the combined body member forming a side and bottom of the tank, the combined body member comprising at least one curved non-linear surface to define a partially curved interior in at least a portion of the tank; and a component situated within the tank and susceptible to creating increasing pressure within the tank when under a fault condition. At least one of the top, sidewall, and bottom members is connected to another of the top, sidewall, and bottom members in a manner so as to cause an increase in inner volume of the tank under increased pressure conditions.
摘要:
An RF plasma gun has a metal annular support ring at the gun's nozzle exit port. The ring is conductively mounted to a metal tank containing a substrate to be processed. The substrate is connected to a manipulator which is electrically isolated from the tank. A DC voltage is impressed between the tank, which contains an inert atmosphere at a pressure below that of ambient atmosphere, and the manipulator. The tank is placed at ground potential and the manipulator at a negative potential relative to the tank. The DC voltage creates an electric arc which flows from the exit port ring via the plasma to the substrate for cleaning the substrate.
摘要:
Substantially homogeneous, substantially spherical interdiffused metallic oxide particles, especially useful in plasma spraying applications, are readily and economically prepared from constituent metal oxide powders by the method of this invention which includes the step of heating a mass of discrete agglomerated particles under conditions of temperature and time sufficient to interdiffuse the constituent metallic oxides within the agglomerates, but insufficient to sinter the agglomerates together.
摘要:
A plasma or flame spraying method is provided for applying a ceramic or metallic UV sensitive indicating coating onto a metal substrate. Particle size control of the ingredients used in the plasma or flame sprayable mixture has been found to enhance the fluorescence of the resulting indicating coating.
摘要:
A method for forming a ring structure having a high volume fraction of a filament reinforcement within a metal matrix is disclosed. The ring structure is formed by consolidating a set of nested rings each of which has a high volume fraction of the filamentary reinforcement therein. The nesting is done to provide a clearance between the rings of the nest of about 2 or 3 mils. The nested rings are enclosed within a HIPing can and the structure is HIPed at about 15 ksi and 1000.degree. C. for over an hour. A single superring structure results from the HIPing.
摘要:
A method for controlling the dimension of a reinforced metal matrix composite structure is taught. The structure is annular and the method is to render the structure non-round where the initial structure is essentially round. The cure of the essentially round condition is accomplished by forming a solid mandril very slightly smaller in dimensions than the final dimensions sought for the structure. The essentially round composite ring is forced onto the non-round mandril and heated to the relaxation temperature of the matrix. Because the mandril has a higher thermal coefficient of expansion than the matrix, the method is effective in forming an essentially round structure into a non-round configuration.
摘要:
A method for improved HIPing of filament reinforced metal matrix composite samples is disclosed. The method departs from conventional HIPing practice in that it does not rely on the heating of the HIPing gas in order to increase pressure. Rather, the temperature of the article and of the HIPing gas is first to the HIPing temperature and the pressure of the gas and the pressure on the sample is then raised to the HIPing pressure. Benefits are derived in that a lower level of filament fracture results.
摘要:
An improved method of forming titanium alloy in sheet form is taught. The sheet is formed by plasma spraying larger particles of greater than 100 .mu.m diameter onto a receiving surface to form a sheet having a rough surface due to the larger particles. An RF powered gun is employed to form the deposit using the larger particles. The formed sheet is separated from the substrate and rolled to reduce the sheet thickness as well as to render the rough surface smoother and more even.
摘要:
A ring is formed having alternating segments of ferromagnetic and paramagnetic materials. The ring is formed by first providing an annular ring of a high strength magnetic steel. Teeth are formed on the outer surface of the ring by forming troughs of the ferromagnetic material. Low pressure plasma deposition is used to fill in the troughs with a high strength paramagnetic material. The excess steel and excess plasma deposited material is removed to leave the finished ring of alternating segments of ferromagnetic and paramagnetic material.