30results about How to "Increase hardening" patented technology

A chemically and spectrally-sensitized emulsion has been described, wherein said emulsion comprising (100) cubic silver halide grains with an average edge length of from 0.2 up to 1.5 mum, has been spectrally sensitized by addition at least three trimethine dyes: a main spectral sensitizer added in an amount of at least 85 mole % of all spectral sensitizers added, followed by adding a second spectral sensitizer in an amount of not more than 10 mole % and a third spectral sensitizer in an amount of at most 1 mole % wherein at least said main spectral sensitizer has two benzoxazole rings in its chemical structure, at least said third spectral sensitizer has two benzimidazole rings in its chemical structure and wherein the said second spectral sensitizer has a structure more sterically hindered than the structure of the other spectral sensitizers. A light-sensitive silver halide photographic film material coated with such emulsion and a radiographic screen / film combination has been described.

The invention relates to a self-compacting concrete preparation process. Components include, by weight, 160-175 parts of water, 250-260 parts of cement, 115-130 parts of coal ash, 38-45 parts of mineral powder, 1000-1050 parts of medium sands, 800-850 parts of broken stones, 0.5-0.8 part of dispersing agents, 0.01-0.2 part of thickening agents and 7.5-8.0 parts of water reducing agents. Sand-stoneaggregates in self-compacting concrete are the broken stones and the medium sands with small particle sizes, the coal ash, the mineral powder, the cement and the like are mixed with the water to achieve good viscosity, the substances are fine powdery, so that the filling degree is high in casting, and the prepared concrete after curing has fewer surface pores and holes and is high in flatness andlow in roughness. By adding special modified additives, the concrete has good dispersing effects, aggregate and slurry separation is avoided, vibration is omitted in the whole process, and good filling effects are achieved.

The invention provides a mineral powder grinding agent accelerating mineral powder hardening. The mineral powder grinding agent accelerating mineral powder hardening is composed of, by weight, 20-25 parts of water, 3-6 parts of industrial salt, 3-4 parts of sodium sulfate, 4-8 parts of sodium thiosulfate, 5-7 parts of sodium nitrite, 2-6 parts of urea, 1-5 parts of sodium lignosulfonate, 8-11 parts of triethanolamine, 35-40 parts of compound hydramine, 1-2 parts of glycerin and 1-2 parts of sugar. The mineral powder grinding agent is added to mineral powder to be grinded, so that the hardeningspeed of the mineral powder can be significantly improved, the production demand is met, the production cost is reduced, and the yield is improved.

The present invention discloses a preparation method for FD mature kiwi fruit in-situ slices. The method comprises the following steps of selecting fruits and cutting the fruits into slices with a thickness of 0.5-1 cm, quick-freezing the kiwi fruit slices with a freeze dryer at a refrigeration rate that a freezing process from room temperature of about +25 DEG C to -20 to -30 DEG C is completed within 2-3 hours; remaining the quick frozen kiwi fruit slices for 30 minutes to 2 hours, and carrying out sublimation for drying. The preparation method for the FD mature kiwi fruit in-situ slices adopts quick-freezing so as to maintain the original shape and original flavor of the kiwi fruit slices; and vacuum keeping and heating for sublimation are simultaneously conducted so as to remain the original structure of pectin in the kiwi fruits, prevent saccharification and make the water content of the dry kiwi fruit slices meet the requirement. In addition, the freeze drying method maintains the original color of the kiwi fruit slices, concentrates the nutrients in kiwi fruits and significantly reduces costs compared with a conventional freeze-drying method.

A vehicle window lifting motor capable of overload protection relates to the technical field of motors. The motor includes a connector. An inner wall of the connector is provided with uniformly distributed clamping grooves, an output shaft is connected on a middle part of the connector in a clamped manner, and evenly distributed fixed columns are fixedly connected on an inner wall of the output shaft. In the vehicle window lifting motor capable of overload protection, clamping blocks and the clamping grooves are used in a cooperative manner, the clamping blocks are connected with the clampinggrooves in a clamped manner in an initial state, and the connector is enabled to be connected with the output shaft in a clamped manner; when the rotating output shaft suddenly stops, a limiting blockmoves towards a front side due to centrifugal force, an electrically conductive sheet is driven to move toward the front side, the electrically conductive sheet is separated from a rheostat, a circuit for suspending liquid is disconnected, the suspending liquid is turned into fluid, the clamping blocks are squeezed into the output shaft under the action of the clamping grooves, piston blocks moveto both sides under the action of the suspending liquid to make the output shaft idle, thus overload protection can be achieved, overload use of the motor can be prevented, and service life of the motor is prolonged.

It is provided that the connecting portion of the series-shaped sausage can be fused at high speed and easily after the series-shaped sausage is made, and the twist head will not be reversed after fusing, and can completely prevent A practical fusing device for the connection part of sausages in series, which is a separate section of sausage where raw material leaks due to the opening of the fusing part, and also greatly realizes labor saving and improvement in production efficiency, and each sausage applied to the related fusing device The manufacturing method of the single segment or the serial body of the single segment, etc. Using a conveying device equipped with series-shaped sausages, a plurality of electrodes arranged at regular intervals in order to respectively contact the individual segments of the serial-shaped sausages to be conveyed connected by connecting parts, and using the electrodes to send signals to the individual segments. The connection part of the sausage connected in series with the power supply unit is fused with electricity.

The invention discloses a probe for a quick tester of hydrogen content in an aluminium alloy fusant and a manufacturing method thereof. In the hydrogen measuring device used at present, a hydrogen gauge probe has the problems of long measuring period and high price. The manufacturing method of the invention comprises: a, according to parts by weight, 16 parts of silicon carbide with 150 meshes, 5parts of bentonite, 2 parts of powdery alumina, 1 part of powdery copper oxide and 4 parts of gypsum powder are put into the same crucible to be evenly and fully stirred, 7 parts of water are added, and the mixture is evenly stirred to form a probe raw material; b, the weighed probe raw material is loaded into a die to be compacted and shaped; c, the probe is taken out and is dried at room temperature, and then the probe head is completely dipped into phosphoric acid for 3-4 minutes; and d, after being totally dried, the probe dipped in acid is baked at high temperature. The probe of the invention is a mating device for quickly measuring the hydrogen content in the aluminium alloy fusant.