Plating nickel on aluminum castings Patent
Nickel plating onto etched aluminum castings
Brinks, B. J.↗
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Plasma-Sprayed Copper Tie-In for Nickel Plating
Foam insulation nickel-plated with one less step. Changing tie-in layer from plasma-sprayed nickel to plasma-sprayed copper eliminates intermediate copper electroplating step previously required.
Lombard, J. W.↗
Pretinning Nickel-Plated Wire Shields
Nickel-plated copper shielding for wires pretinned for subsequent soldering with help of activated rosin flux. Shield cut at point 0.25 to 0.375 in. (6 to 10 mm) from cut end of outer jacket. Loosened end of shield straightened and pulled toward cut end. Insulation of inner wires kept intact during pretinning.
Igawa, J. A.↗
Electroless nickel plating on stainless steels and aluminum
Procedures for applying an adherent electroless nickel plating on 303 SE, 304, and 17-7 PH stainless steels, and 7075 aluminum alloy was developed. When heat treated, the electroless nickel plating provides a hard surface coating on a high strength, corrosion resistant substrate.
Source record↗
Improved nickel plating of Inconel X-750
Electroplating technique with acid pickling provides a method of applying nickel plating on Inconel X-750 tubing to serve as a wetting agent during brazing. Low-stress nickel-plating bath contains no organic wetting agents that cause the nickel to blister at high temperatures.
Farmer, M. E.↗
Nickel plating of the 23-ft collimating mirror for the JPL 25-ft space simulator
Aluminum collimating mirror nickel plated for use in space simulator
SPACE SIMULATOR↗
Diffusion brazing nickel-plated stainless steel
To bond parts, sandwich assembly is made up of aluminum core, aluminum face sheet with brazing alloy interface, and nickel plated stainless steel part. Sandwich is placed between bottom and top glide sheet that is placed in stainless steel retort where assembly is bonded at 580 C.
Beuyukian, C. S.↗
Screen test for cadmium and nickel plates
A new procedure is described which was recently developed to quantify loading uniformity of nickel and cadmium plates and to screen finished electrodes prior to cell assembly. The technique utilizes the initial solubility rates of the active material in a standard chemical deloading solution at fixed conditions. The method can provide a reproducible indication of plate loading uniformity in situations where high surface loading limits the free flow of deloading solution into the internal porosity of the sinter plate. A preliminary study indicates that 'good' cell performance is associated with higher deloading rates.
Phan, Angie H.↗
Screen test for cadmium and nickel plates as developed and used within the Aerospace Corporation
A new procedure described here was recently developed to quantify loading uniformity of nickel and cadmium plates and to screen finished electrodes prior to cell assembly. The technique utilizes the initial solubility rates of the active material in a standard chemical deloading solution at fixed conditions. The method can provide a reproducible indication of plate loading uniformity in situations where high surface loading limits the free flow of deloading solution into the internal porosity of the sinter plate. A preliminary study indicates that 'good' cell performance is associated with higher deloading rates.
Phan, A. H.↗
Checking Nickel Plate For Porosity
Porosity test goes for free ride with cryogenic adhesion test. Frosted areas marked so pores found after frost disappears. Plating stylus used for local repair of nickel layer.
Roberts, Michael D.↗
Plated nickel wire mesh makes superior catalyst bed
Porous nickel mesh screen catalyst bed produces gas evolution in hydrogen peroxide thrust chambers used for attitude control of space vehicles. The nickel wire mesh disks in the catalyst bed are plated in rugose form with a silver-gold coating.
Sill, M.↗
Nickel powders and plaques for nickel-cadmium cell plates
Nickel powders and plaques for nickel-cadmium cell plates
Halpert, G.↗
Braze alloy process and strength characterization studies for 18 nickel grade 200 maraging steel with application to wind tunnel models
A comprehensive study of braze alloy selection process and strength characterization with application to wind tunnel models is presented. The applications for this study include the installation of stainless steel pressure tubing in model airfoil sections make of 18 Ni 200 grade maraging steel and the joining of wing structural components by brazing. Acceptable braze alloys for these applications are identified along with process, thermal braze cycle data, and thermal management procedures. Shear specimens are used to evaluate comparative shear strength properties for the various alloys at both room and cryogenic (-300 F) temperatures and include the effects of electroless nickel plating. Nickel plating was found to significantly enhance both the wetability and strength properties for the various braze alloys studied. The data are provided for use in selecting braze alloys for use with 18 Ni grade 200 steel in the design of wind tunnel models to be tested in an ambient or cryogenic environment.
Bradshaw, James F.↗
Phase 2 of the array automated assembly task for the low cost silicon solar array project
Studies were conducted on several fundamental aspects of electroless nickel/solder metallization for silicon solar cells. A process, which precedes the electroless nickel plating with several steps of palladium plating and heat treatment, was compared directly with single step electroless nickel plating. Work was directed toward answering specific questions concerning the effect of silicon surface oxide on nickel plating, effects of thermal stresses on the metallization, sintering of nickel plated on silicon, and effects of exposure to the plating solution on solar cell characteristics. The process was found to be extremely lengthy and cumbersome, and was also found to produce a product virtually identical to that produced by single step electroless nickel plating, as shown by adhesion tests and electrical characteristics of cells under illumination.
Petersen, R. C.↗
Nondestructive test method accurately sorts mixed bolts
Neutron activation analysis method sorts copper plated steel bolts from nickel plated steel bolts. Copper and nickel plated steel bolt specimens of the same configuration are irradiated with thermal neutrons in a test reactor for a short time. After thermal neutron irradiation, the bolts are analyzed using scintillation energy readout equipment.
Dezeih, C. J.↗
Plasma Spray for Difficult-To-Braze Alloys
Nickel plating on surfaces makes brazing easier for some alloys. Sometimes nickel plating may not be feasible because of manufacturing sequence, size of hardware, or lack of suitable source for nickel plating. Alternative surface preparation in such cases is to grit-blast surface lightly and then plasma-spray 1 1/2 to 2 mils of fine nickel powder or braze-alloy material directly on surface. Powder is sprayed from plasma gun, using argon as carrier gas to prevent oxidation of nickel or braze alloy.
Brennan, A.↗
Copper wire plated with nickel and silver resists corrosion
Copper wire for electrical harnesses, when plated with both nickel and silver, resists galvanic corrosion and high temperatures while maintaining electrical properties and solderability.
Source record↗
Nickel electrode plate thickening study
The rate of thickening of the nickel electrode with cycling, under geochronous conditions, was investigated. The experimental procedures used to study the effects of various operational parameters on the rate of the thickness growth are outlined. The parameters included temperature, electrolyte composition, manufacturing lot, cycle parameters, and reconditioning methods.
Bernhardt, M.↗