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6875334 |
A method, a composition and a method for making the composition for anodizing metal surfaces, especially magnesium surfaces is disclosed. The composition is a basic aqueous solution including hydroxylamine, phosphate anions and nonionic ...
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6410886 |
An electrical resistive heating system having a Nitinol heater element in the form of wire, rod strip or tube, is flexible, ductile, tough aid chemically non-reactive. The element has connectors at each end for leads from a controller th...
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6033492 |
The uniformity of gloss of a dried autodeposited resin film on a metal surface can be increased by rinsing the wet autodeposited film initially formed with an aqueous modifying rinse having a pH from 6 to 11 and comprising from 0.2 to 10...
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5769966 |
A method for fabricating an electrically insulating coating on a surface is disclosed comprising coating the surface with a metal, and reacting the metal coated surface with a nonmetal so as to create a film on the metal-coated surface. ...
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5558724 |
A method for making a lamination insulated by iron-manganese phosphate comprises the following operations: 1. The lamination is treated with an acid or basic medium to eliminate the surface layer of the lamination that contains excess...
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5456767 |
A method for inhibiting corrosion of a metal surface in a liquid medium is described. The method comprises incorporating into the medium a corrosion inhibiting amount of a combination of a surfactant that forms a bilayer on the metal sur...
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5147827 |
A device such as a phototransistor, a photodiode, a laser diode or the like including a compound semiconductor coated with a stable passivation film to reduce leakage current is disclosed. The passivation film includes oxygen, a metallic...
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5098485 |
A method of making an electrical contact to a metal on which an electrically insulating native oxide is formed includes applying atoms or ions to the native oxide, heating the metal and oxide to a temperature and for a time effective to ...
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4904315 |
This invention is directed to non-aqueous magnesium oxide slurries and the use thereof to coat silicon steels prior to high temperature annealing.
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4830877 |
The present invention provides an insulating film-forming composition in which a mixed resinous liquid obtained from a specific proportion of an aqueous emulsion of an acrylic resin and/or an acryl-styrene base resin and an aqueous dispe...
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4756933 |
A process is disclosed for applying to sheet steel an electrically insulating layer which permits mainly a satisfactory welding of the sheets when they have been blanked and stacked. The sheet steel is contacted with a treating liquor wh...
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RE31967 |
A gang bonding interconnect tape for use in an automatic bonding machine for gang bonding of semiconductive devices is fabricated by depositing a series of electrically insulative support structures, such as rings of epoxy resin, onto a ...
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4500605 |
The process of forming a composite with an alloy having an alloy component of about 0.5 to 12% aluminum and a matrix selected from a material of the group consisting of copper, iron or nickel. The alloy is heated in an oxygen-rich atmosp...
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4498936 |
An insulative coating composition for electrical steels containing Al + ++, Mg + +, H 2 PO 4 - and aluminum silicate in specified proportions, in the form of a stable aqueous suspension which provides a tension-imparting coating having...
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4496399 |
A method and aqueous coating composition for forming an anti-stick and insulative coating on cold-rolled, non-oriented, semi-processed steel; cold-rolled, non-oriented, fully-processed steel; cold-rolled motor lamination steel; and punch...
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4451299 |
The high temperature properties of protective coatings, paricularly the oxidation resistance, is improved by the melting of a surface portion of the coating using a high intensity energy source. The surface melting refines and homogenize...
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4367101 |
A process of providing an inorganic anti-stick coating directly on non-oriented, semi-processed electrical steels by applying to such steels a coating solution containing Al + ++, Mg + +, and H 2 PO 4 - in a specified relative relatio...
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4347085 |
An aqueous coating solution for forming an insulative coating directly on electrical steels and on steels having a mill glass thereon. The aqueous solution comprises an aluminum-magnesium phosphate premix solution and a colloidal silica ...
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4316751 |
Disclosed is a process for applying an electrical insulating coating onto a ferrous metal surface and the ferrous metal surface with the coating thereon. The insulating coating comprises phosphate and nitrate applied in a thin film of fr...
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4295899 |
A composition and process are useful for imparting a coating to an iron or steel surface which exhibits decorative and improved electrical and corrosion resistance properties. The composition contains an alkali silicate water-glass, an a...
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4238534 |
A heat-resistant insulating coating having a high adhesion can be formed on an oriented silicon steel sheet by the use of an aqueous coating dispersion containing colloidal silica dispersed therein, at least one of monobasic phosphates o...
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4213792 |
A coating solution for forming on electrical steel strips an electrical insulation coating for tensioning the strip, contains on a dry weight basis for every 100 parts by weight of phosphoric acid, calculated as P 2 O 5 , from 10 to 35 ...
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4120702 |
Silicon steel sheets which have a silicate protective coating are further protected by being first coated with an aqueous solution containing (1) phosphate ions, (2) silica grains, (3) iron and/or manganese ions, and (4) negative ions wh...
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4026734 |
A process for treating the surfaces of a titanium or titanium alloy article which comprises immersing the titanium article in an aqueous solution of ammonium phosphate and then oxidizing the surface by heating the coated article at a tem...
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3996073 |
Insulative coatings for electrical steels and methods of making them. The coatings are hard, glassy and smooth in nature, are easily cured and improve the magnetic characteristics of the electrical steels. The coatings are produced by ap...
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3985583 |
An insulating coating having a high adhesion on an oriented silicon steel sheet, which applies a tension on the surface of the steel sheet and restrains magnetostriction increased when compressive stress is subjected to said oriented sil...
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3948786 |
Insulative coatings for electrical steels and methods of making them. The coatings are hard, glassy and smooth in nature, are easily cured and improve the magnetic characteristics of the electrical steels. The coatings are produced by ap...
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3940291 |
Insulative coatings for electrical steels having improved resistance to deterioration during stress relief anneals or other heat treatments carried on in reducing atmospheres. They may be produced by coating electrical steel with an aque...
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3930897 |
An object of silicon steel, such as sheet and strip for motors, generators and transformers, which has an insulating coating of silicate, is provided with a solution of phosphate by applying to the silicate-coated object an aqueous solut...
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3869317 |
The process for the production of a protectively coated metal object which comprises applying to said metal object at least one condensable phosphate selected from the group consisting of alkali metal hydrogen phosphates and alkali metal...
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3840378 |
Insulative coatings for electrical steels having improved resistance to deterioration during stress relief anneals or other heat treatments carried on in reducing atmospheres. They may be produced by coating electrical steel with an aque...
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3793073 |
Electrical steel sheets and strips having excellent punching and welding characteristics for production of a laminated iron core, which comprises an organic type coating film applied on the surface of an electrical steel sheet and strip ...
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3658587 |
A composition for providing an electrically insulative coating on electrical alloys having a high permeability and a low core loss which consists essentially of an aqueous solution containing ammonium ions, phosphate ions, chromate ions ...
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3649356 |
A first electrical conductor body is cooled to below 100° K. in a vacuum chamber. The chamber is then pressurized with oxygen and after a period of time a glow discharge is established in the chamber. After a time the glow discharge is ...
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3522108 |
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3477881 |
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3421949 |
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3421925 |
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3251719 |
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3214302 |
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3213302 |
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3210316 |
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3207636 |
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3150015 |
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3144364 |
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3140204 |
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3138492 |
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3121038 |
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3114661 |
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2980561 |
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