摘要:
A method of drilling and blasting a field is disclosed. By use of a certain combination of blasting agents, it is possible to expand the bore hole pattern by 30 to 50%, thereby decreasing the number of bore holes per unit of area to be blasted.
摘要:
Compositions and methods for inhibiting the corrosion of metals in contact with an aqueous system are provided. The method of inhibiting corrosion includes maintaining effective amounts of (1) an amino acid-based polymer, such as a polyaspartic acid compound, and (2) a dispersible and/or soluble tin compound in the aqueous system. The corrosion inhibiting components of the treatment may be added simultaneously or separately into the water of the aqueous system, i.e., provided either in a single treatment product or as separate products. The single treatment single treatment product may include the amino acid-based polymer and a dispersible and/or soluble tin compound. Such a corrosion inhibiting composition may optionally also include a polycarboxylic acid chelating agent and/or a carboxylate/sulfonate functional copolymer.
摘要:
The present inventors have surprisingly discovered that phytic acid tenaciously precipitates with soluble metals in food or fuel ethanol-processing fluid, producing insoluble organometallic salt deposit or scale on the processing equipment that must be removed in order to facilitate further ethanol processing. The present invention relates to converting phytic acid salts or phytates to inorganic phosphates to improve metal solubility and reduce deposition within processing equipment.
摘要:
The present invention relates to a method for inhibiting in a non-aqueous, non-conductive liquid. The present method also relates to a corrosion inhibitor that can be employed in such a liquid. The method can include measuring or detecting the present corrosion inhibitor with a magnetic flow meter.
摘要:
An improved PC Card element, particularly a flash card unit, is presented in which the unit is hermetically sealed. The unit has a metallic frame, a metallic header with glass or ceramic encapsulated through pins, and opposed outer metallic covers, all of the metallic elements being of the same metal and being welded together to form a hermetically sealed unit.
摘要:
A process monitors boric acid or other boron compounds in a fluid system. At least one specie of tracer chemical is added to a fluid system and at least one sample of fluid from the fluid system is analyzed for at least the presence of the tracer, and the presence of the specie of tracer chemical in such sample determines at least the presence of boric acid or other boron compounds in the sample.
摘要:
An improved PC Card element, particularly a PC card unit, is presented in which the unit is hermetically sealed. The unit has a metallic frame, a metallic header with glass or ceramic encapsulated through pins, and opposed outer metallic covers, all of the metallic elements being welded together to form a hermetically sealed unit. The metallic frame and header is preferably formed as a single piece, i.e., unitary part, either by casting and machining or by metal injection molding.
摘要:
We have determined that simultaneous use in industrial waters of certain water soluble polymers in the presence of ozone is acceptable for scale control, corrosion control, microbiological control and the like. The preferred polymers used with ozone and those polymers that are homopolymers and copolymers containing at least 50 mole percent of acrylic acid or methacrylic acid, mixtures thereof. Certain other monomers may be used with the acrylic acid and methacrylic acid monomers, and still function as scale inhibitors and corrosion inhibitors in the presence of ozone in industrial waters. The industrial waters are particularly recirculating cooling waters.
摘要:
A disc drive assembly for a magnetic disc memory unit is presented. The disc drive assembly has a stationary spindle to which a motor stator assembly is fastened by a wedge ring structure. The motor rotor assembly is constituted by a rotary hub mounted around the stator, the hub having a motor magnet mounted therein. A plurality of magnetic discs may be mounted on the exterior of the hub.