摘要:
A method for reducing ion concentrations in separator materials used in electrochemical processes, including in lead storage batteries. The separator material is treated with at least one acid from the group of sulphuric acid, phosphoric acid and sulfonic acids and/or at least one salt from the group of sulfates, phosphates and diphosphates of the alkali metals of alkaline earth metals.
摘要:
A frame supports heat exchangers one in front of another in the direction of flow of cooling air, and includes two vertical walls interconnected by transverse walls, cross braces between the walls, and fastening points on the walls adapted to fasten the heat exchangers to the frame. Outwardly extending bulging sections in the vertical walls include an outer portion adapted to be secured to the vehicle support members to support the frame thereon, and an inner portion defining a space between vertical wall sections above and below the bulging section for receive projecting components of at least one heat exchanger. Connectors connect each of the fastening openings to the aligned flange openings, with the connectors including a head and a stem with an expandable end opposite the head retaining the connectors in the aligned openings. Hooks support the heat exchangers in the direction of air flow, with the connector stems supporting against at least some forces transverse to the direction of air flow.
摘要:
An induction heating device having a hollow cylindrical body made of electrically conductive material, at least one primary induction coil and at least one auxiliary induction coil, the at least one primary induction coil and the at least one auxiliary induction coil being arranged in the cavity of the cylindrical body such that, by means of the at least one primary induction coil and the at least one auxiliary induction coil, first and second magnetic fields, respectively, can be produced in the cylindrical body. The at least one auxiliary induction coil and the at least one primary induction coil operate such that the second magnetic field, at least in one area of the cylindrical body, counteracts the first magnetic field. A corresponding method of operating such an induction heating device, and also a processor for processing a recording medium, having such an induction heating device, are also provided.
摘要:
A method for manufacturing lead plates for a lead/acid battery includes the step of providing lead electrode grates and filling an active paste into the lead electrode grates to form filled lead plates. Subsequently the lateral surfaces of the filled lead plates are subjected to a continuous processing sequence of less than 6 hours under preselected processing parameters for time, temperature, humidity, and air movement. The processing sequence includes a curing step in which moisture is added to reach a first humidity value, a predrying step for reducing the amount of free lead in the active paste at a second humidity value that is lower than the first humidity value, and a final drying step.
摘要:
An arrangement for measuring a thickness of a sheet article during a sheet article transportation, especially for measuring the thickness of an X-ray sheet film in an X-ray cassette loading and unloading device, has a magnet carrier arranged in a spring-biased manner on a sheet article transportation path perpendicularly to one side of the transportation path, a permanent magnet arranged on the magnet carrier near the first side of the magnet transportation path, at least one roller body arranged on the magnet carrier rotatably in a transportation direction of the sheet aarticle, a probe carrier fixedly arranged parallel to a second side of the transportation path opposite to the matnet carrier, a Hall probe arranged on the probe carrier opposite to the permanent magnet, at least one roller body arranged on the probe carrier. The probe carrier has a number of the roller bodies which corresponds to a number of the roller bodies on the magnet carrier. The roller bodies of the magnet carrier and the probe carrier rolling over one another in a plane of the transportation path. A control unit evaluates an output signal of the Hall probe.
摘要:
A method for producing, maturing and drying negative and positive plates for lead accumulators during which, in a pasting step, the plates are manufactured by introducing lead paste serving as an active material into an electrode support. The plates are directly placed one atop the other in stacks; the plates are matured at temperatures higher than 70° C. while maintaining a residual moisture of the active material, which prevents or reduces a spontaneous oxidation of the lead oxides, to form a porous cross-linked structure comprised of 3- and/or 4-basic lead sulfates, the 3- and/or 4-basic lead sulfates having a greater density than that of the active material that forms the starting material, and; the plates are dried to a desired final moisture while exploiting a permeability, which is suited for the active material due to the porosity resulting from the maturing, and the oxidation of lead remaining in the active material in the plate stack by applying an overpressure or underpressure, which has a pressure difference of more than 10 mbar between an inflow side and an outflow side of the plate stack, by means of oxygen-containing gas flowing through the active material.
摘要:
A cooling module for a vehicle, including at least two heat exchangers with holding brackets secured to the sides, and a support having two elastic bearings adapted to rest on carriers of the vehicle and secured to the holding brackets. The elastic bearings include an elastic element between at least first and second members whereby the heat exchangers are supported individually elastically.
摘要:
The present invention is an additive for producing a positive active material for lead-acid storage batteries on the basis of finely divided tetrabasic lead sulfate. The additive contains a tetrabasic lead sulfate of an average particle size less than about 3 μm as well as finely divided hydrophobic silicic acid for preventing agglomeration of the particles of the tetrabasic lead sulfate. During maturation, this additive ensures the formation of the structure of a tetrabasic lead sulfate crystal with a very narrow bandwidth of crystal sizes and a very homogeneous distribution. In the subsequent electrochemical formation to lead oxide, this leads to particularly efficient lead-acid storage batteries. Furthermore, the invention relates to a method of making the additive according to the invention as well as its advantageous use in the positive material for the maturation and drying of plates in the production of lead-acid storage batteries.
摘要:
The invention relates to a method of treating elastic material that is provided with silica embedments to avoid shrinkage, whereby the finished material that is provided with the silica embedments is subjected for a prescribed period of time to temperatures above 40° C. prior to further processing.
摘要:
A method for producing, maturing and drying negative and positive plates for lead accumulators during which, in a pasting step, the plates are manufactured by introducing lead paste serving as an active material into an electrode support. The plates are directly placed one atop the other in stacks; the plates are matured at temperatures higher than 70° C. while maintaining a residual moisture of the active material, which prevents or reduces a spontaneous oxidation of the lead oxides, to form a porous cross-linked structure comprised of 3- and/or 4-basic lead sulfates, the 3- and/or 4-basic lead sulfates having a greater density than that of the active material that forms the starting material, and; the plates are dried to a desired final moisture while exploiting a permeability, which is suited for the active material due to the porosity resulting from the maturing, and the oxidation of lead remaining in the active material in the plate stack by applying an overpressure or underpressure, which has a pressure difference of more than 10 mbar between an inflow side and an outflow side of the plate stack, by means of oxygen-containing gas flowing through the active material.