35results about How to "Reduce temperature control costs" patented technology

The invention discloses a concrete with an ultrahigh content of mixed fly ash, and relates to the field of construction materials. The concrete comprises the following components in parts by weight: 48 to 60 parts of cement, 240 to 272 parts of fly ash, 656 to 696 parts of sand, 1293 to 1333 parts of broken stone, 3.0 to 4.8 parts of water reducer, 0.18 to 0.26 part of air-entrainer, and 80 to 90 parts of water. The mechanical performance and deformation performance of the concrete meet the requirements of water resources and hydropower engineering C18040 concrete and lower grades; moreover, the hydration temperature rise is lower, the anti-cracking performance is stronger, thus the happening rate of cracks in concrete is reduced, and the cost of temperature control is reduced.

The invention relates to a low-rise, low-shrinkage, high-crack-resistance, high-durability roller compacted concrete and a preparation method thereof. All components of the roller compacted concrete are as follows in parts by weight: 60-80 parts of low heat portland cement, 89-114 parts of fly ash, 740-771 parts of sand, 1486-1514 parts of stone, 0.89-1.18 parts of water reducer share. Compared with traditional medium-heat Portland cement roller compacted concrete, the present invention has good working performance, mechanical performance and durability, and at the same time, the concrete has lower adiabatic temperature rise, smaller autogenous volume deformation and shrinkage, and even exhibits micro-expansion characteristics, and temperature control and anti-cracking capabilities Significant improvement can further simplify temperature control measures and reduce engineering costs. At the same time, it can realize construction in high temperature seasons and gradually cancel cooling water pipes in low temperature seasons. The technical and economic benefits are remarkable.

The invention provides a three-dimensional floor building insulating system, aiming to provide a three-dimensional floor building insulating system which is stable in thermal insulation property, compatible with a wall body insulating system and advantageous for bringing an air conditioning system into play, and a construction method thereof. The three-dimensional floor building insulating systemis implemented according to the following technical proposal: the three-dimensional floor building insulating system further comprises a floor ground insulating system which is connected to the wall body insulating system; the floor ground insulating system comprises a prefabricated slab surface structure base layer, a waterproof base layer with a flashing slope formed by plastering cement grout and a multi-layer waterproof coating connected with the waterproof base layer; and a rubber-plastic insulation board connected to the floor board by a sticking insulation nail is arranged on the multi-layer waterproof coating. The construction method comprises the following steps of: unreeling wires on the ground according to an integrated wiring diagram of pipelines under the floor board, planning and designing elevated floor board supporting points, plastering a plurality of waterproof layers also serving as closed layers, sticking the insulation nail and laying the insulation board on the floor ground. The three-dimensional floor building insulating system and the wall body insulating system supplement each other to provide all-around thermal insulation measures.

The invention provides a nanocrystalline magnetically soft alloy, an amorphous magnetically soft alloy and preparation methods of the nanocrystalline magnetically soft alloy and the amorphous magnetically soft alloy. The nanocrystalline magnetically soft alloy comprises the compositions of Fe, Cu, Si, B, and Nb, and further comprises at least one element between Mn and Cr, wherein the atomic percentage content of each element at the at least one between the Mn and the Cr is not more than 3.5 at%. The antiferromagnetism of the Mn element and / or the Cr element is utilized, and a heat treatment mode of multi-stage rate annealing is combined, so that the high-frequency magnetic permeability of the magnetically soft alloy is improved, the high-frequency loss of the magnetically soft alloy is reduced, and the high-frequency magnetic performance of the magnetically soft alloy is improved; meanwhile, the crystallization temperature interval is narrower, and the heat treatment temperature interval is wider, so that the high-quality nanocrystalline magnetically soft alloy or the high-quality amorphous magnetically soft alloy are obtained favorably and the preparation cost is reduced; and inaddition, the oxidation resistance of the Mn element and / or the Cr element is further utilized, so that the tolerance of impurities is improved, the surface of an amorphous strip is prevented from being crystallized, the amorphous forming capacity is improved, and the high-quality magnetically soft alloy can be prepared through low-purity commercial raw materials.

The invention belongs to the field of electronic materials and components, and specifically provides a cutting and cold processing and fixing condensate and device for electronic materials, which are used to solve the problem that the current vacuum adsorption and fixing method for cutting processing is difficult to meet the diversification of the sizes of cut products. The solidification temperature of the fixed condensate provided by the present invention is 14-19°C. After solidification, the matching auxiliary anti-skid block can have a good fixing and shock-absorbing effect on electronic material parts, so that it can meet the processing requirements of electronic material parts of different sizes; at the same time , the matching processing device uses tap water to cool down the cutter head cooling device and then controls the temperature of the running cutter. The cutter cooling water at 1-8°C can effectively prevent the temperature of the solidified layer from rising and melting, resulting in unstable fixation. The problem of stability; in summary, the present invention can meet the processing requirements of electronic material parts of different sizes, and not only improve the processing efficiency, but also better guarantee the processing quality and greatly reduce the processing cost.

An inertial measurement module. An inertial measurement module (100), which includes a control unit (110), an inertial element (120), a temperature sensor (125), a substrate (130), a temperature control element (140) and a housing (160), wherein the control unit (110 ) monitor the temperature of the inertial element (120) through the temperature sensor (125), and control the temperature of the inertial element (120) by controlling the temperature control element (140), characterized in that the control unit (110) and the inertial element (120) Installed on the same surface of the substrate (130), the temperature control element (140) is installed on the other surface of the substrate (130), and the temperature control element (140) is installed on the casing (160) at the same time.

The invention discloses a method for efficiently breeding phytoseiulus persimilis and belongs to the field of biological control of agricultural pests. The method comprises steps as follows: planting and culturing of host plants, inoculation and breeding of tetranychidae, inoculation and culturing of the phytoseiulus persimilis as well as harvesting and storage of the phytoseiulus persimilis. The host plants adopt sweet potato cutting seedlings, and the tetranychidae is a mixed population of tetranychus cinnabarinus and tetranychus urticae. The time for breeding the phytoseiulus persimilis with the sweet potato cutting seedlings is 30-40 days and is shortened by 40% compared with the breeding time with a breeding method of bean seedlings having the same leaf area, and the greenhouse utilization efficiency is improved.

The invention discloses an internal formation process of a lead storage battery, which belongs to the field of production of lead storage batteries and includes a first-stage formation, a second-stage formation and a capacity inspection stage. During the first-stage formation, the temperature of the water bath is controlled at 20-30°C, and the charging current The density is controlled at 3~5mA / cm 2 , the charging power is 3.5-4.0C ampere hours; in the second stage of formation, the temperature of the water bath is controlled at 40-50°C, and the discharge capacity is controlled at 0.25-0.75C ampere-hours with a current density of 0.5C ampere; with a current density of 5-15mA / cm 2 For charging, the charging capacity is controlled at 3.5-4.5C ampere-hours; during the capacity inspection stage, the temperature of the water bath is controlled at 20-30 °C, and the battery is left to cool down before the capacity inspection is performed to discharge and recharge. The invention controls the formation charging current density and formation temperature in stages, which not only improves the comprehensive performance of the battery, but also reduces the energy consumption for controlling the formation temperature, and eliminates the energy waste of water bath temperature control.

The invention discloses adjustable-temperature solid phase synthesis apparatus for polypeptide. The apparatus comprises a kettle body; the upper end of the kettle body is provided with a material inlet, the lower end of the kettle body is provided with a material outlet, and the interior of the kettle body is provided with a stirring a unit; the stirring unit comprises a plurality of stirring devices, each stirring device comprises one rotating sleeve shaft, each rotating sleeve shaft comprises one rotating shaft and one driving shaft arranged in the rotating shaft in a sleeving manner, two ends of each driving shaft are separately connected with one driving unit located at the exterior of the kettle body, and a plurality of stirring blades are uniformly arranged on the periphery of each rotating shaft; and the lower end of the kettle body is externally connected with a vacuuming unit, and a temperature control unit is arranged in the kettle body. The apparatus disclosed by the invention has a simple and clear structure, the components are closely connected with one another and do not affect one another, and the required components are convenient to replace, so that repairing and maintenance of the product in the using process in the future are facilitated.

The invention disclosed an additive for preparing suede on a polycrystalline silicon chip. The invention also provides a suede preparation liquid for preparing suede on a polycrystalline silicon chip, comprising: an acid solution and the aforementioned additive for preparing suede on a polycrystalline silicon chip. The invention also provides a method for preparing suede on a polycrystalline silicon chip, by using which suede can be prepared on the surface of a polycrystalline silicon chip with the foregoing suede preparation liquid.

The invention provides a non-degenerated jellyfish collagen preparation method and belongs to the field of biotechnology. According to the method, processing leftovers of marinated jellyfish serve as raw materials, a non-degenerated jellyfish collagen extraction process under the medium-low temperature condition and with citric acid as extracting agents is established, a collagen product with high purity is obtained, the additional value of jellyfish products is effectively improved, high-valued utilization of low-value jellyfish is achieved, and a new source is provided for preparation of collagen.