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133 results about "Hot box" patented technology

A hot box is the term used when an axle bearing overheats on a piece of railway rolling stock. The term is derived from the journal-bearing trucks used before the mid-20th century. The axle bearings were housed in a box that used oil-soaked rags or cotton (collectively called "packing") to reduce the friction of the axle against the truck frame. When the oil leaked or dried out, the bearings overheated, often starting a fire that could destroy the entire railroad car (and cars coupled to it) if not detected early enough.

Preparation method of novel wool-like differential fibers

The invention discloses a preparation method of novel wool-like differential fibers, which is characterized by comprising the following steps of: 1) adopting polytrimethylene terephthalate (PTT) as a raw material to prepare a pre-oriented yarn (a); 2) adopting modified high-shrinkage polyester as a raw material to prepare fully-drawn high boiling water shrinkage fibers (b); and 3) on a DTY machine, passing the pre-oriented yarn (a) through a roller, a hot box and a cooling plate, performing drawing false twisting on the pre-oriented yarn on a false twister, converging the pre-oriented yarn with the high boiling water shrinkage fibers (b) in front of two rollers, and performing network compounding on the pre-oriented yarn and the high boiling water shrinkage fibers, and then passing the pre-oriented yarn and the high boiling water shrinkage fibers through two hot boxes to obtain a composite yarn product. The preparation method develops the novel wool-like differential fibers, the PTT fibers floating on the surface layer are much closer to wool fibers in performance and are superior to common wool-like products in the performance of elastic recovery, handfeel, antistatic property, dyeing and the like, and simultaneously, the treatment of forming different sections of the two raw materials ensures that the products have significant improvements on luster and fibrillation resistance.
Owner:嘉兴逸鹏化纤有限公司

Method for detecting heat transfer resistance/heat transfer factor of building enclosure structure by infrared thermal imaging system

InactiveCN101246137AAccurate thermal resistance/heat transfer coefficientReal-time shootingMaterial thermal conductivityMaterial heat developmentHot boxHeat flow
The present invention relates to a method which uses the infrared thermal imaging system for quantitative-detecting the heat conducting resistance/heat transfer coefficient of the building enclosure structure. The energized electric heating wire is used for identifying on the selected area of the surface of the enclosure structure; the electric thermoscope is used for measuring the temperature of the identified area; taking the picture of the identified area with the infrared thermal imaging system and the infrared thermal image atlas of the area is obtained, measuring the indoor and outdoor temperature with the electronic thermoscope and recording; executing analysis process to the infrared thermal image atlas with the image analyzing software of the infrared thermal imaging system to obtain the value of (1), substituting into the formula (2) and the average heat conducting resistance R0 of the building enclosure structure is obtained, and the average heat transfer coefficient of the enclosure structure is calculated with the formula (3). The invention has the advantages of flexible infrared thermal image shooting, low requirement to the experiment condition, quick testing, accurate data, overcoming the defect of big error when the data is tested with heat flow meter method and the requirement to the batch meter and insulating box in the hot box method.
Owner:NORTHWEST UNIVERSITY FOR NATIONALITIES

Outdoor dynamic testing method for heat-insulation property of heat-insulation coating at outer wall of building

The invention discloses an outdoor dynamic testing method for heat-insulation property of heat-insulation coating at the outer wall of a building, comprising the steps of: placing a test board containing a protective hot box on a rotating disc capable of rotating by 360 degrees; placing a testing box body and a reference box body in the protective hot box; manufacturing a testing wall body adhered with the heat-insulation coating on the testing surface of the testing box body, and manufacturing a reference wall body adhered with the reference coating on the testing surface of the reference box body; regulating and controlling the interior temperature of the testing box body, the reference box body and the protected hot box to be 24 DEG C; regulating and controlling the internal surfaces of the surfaces of the testing box body and the reference box body to be less than 0.3m/s; and obtaining the heat-insulation property of the heat-insulation coating. The testing method takes the effects of solar radiation into consideration, can test and analyze the effect of the heat-insulation coating on the building energy consumption, and can obtain an accurate measurement result for the heat engineering performance of the wall body or the roofing under practical winter and summer climatic conditions.
Owner:SHANGHAI RES INST OF BUILDING SCI CO LTD

Nickel base gamma/ gamma' superalloy with multiple reactive elements and use of said superalloy in complex material systems

The present invention relates to a nickel-base Gamma/Gamma' superalloy with a unique blend of at most moderate cost, high oxidation resistance, high hot corrosion resistance, moderate strengthening, adequate alloy stability, and comparatively good weldability. The said alloy comprises: Up to 20 wt% of the sum of Co and Fe, between 17 and 21 wt% Cr, between 0.5 and 3 wt% of the sum of Mo and W, at most 2 wt% Mo, between 4.8 and 6 wt% Al, between 1.5 and 5 wt% Ta, between 0.01 and 0.2 wt% of the sum of C and B, between 0.01 and 0.2 wt% Zr, between 0.05 and 1.5 wt% Hf, between 0.05 and 1.0 wt% Si, and between 0.01 and 0.5 wt% of the sum of rare earths such as Sc, Y, the actinides and the lanthanides, such that at least two of these rare earths are present in the alloy, and no more than 0.3 wt% of any of these rare earths. It further relates to its use in hot components such as, but not restricted to, blades, vanes, heat shields, sealings and combustor parts in gas turbines. It further relates to its use as filler alloy for repair welding and/or cladding of such hot components. It further relates to its use as protective coating and/or bond coat in a TBC system on such hot components. It further relates to its dual use as coating and/or bond coat, and, for repair and/or cladding on such hot components. It further relates to its use as intermediate layer between the base alloy and another coating and/or bond coat on such hot components. It further relates to its use in polycrystalline, directionally solidified or single crystal form in such components. It further relates to its production by processes such as, but not restricted to, precision casting, laser welding/cladding, hot box welding, laser sintering, cold spraying, explosion welding and vacuum plasma spraying. It further relates to its production by low S processing. It further relates to its use as part of material systems as exemplified above produced by low S processing.
Owner:SIEMENS AG

Device and method for detecting heat insulating properties of building doors and windows

ActiveCN108490023AEasy to installIncreased efficiency of mounting into specimen framesMaterial heat developmentHot boxTest room
The invention discloses a device and method for detecting heat insulating properties of building doors and windows, and solves the problem that the mounting efficiency of test pieces of doors and windows at the present stage is low. The main points of the technical scheme are that the device for detecting the heat insulating properties of the building doors and windows comprises a test room, and ahot box and a cold box which are mounted in the test room and adhered to each other; a detecting opening is formed between the hot box and the cold box, and a test piece frame is mounted at the detecting opening; the device for detecting the heat insulating properties of the building doors and windows is also provided with a test piece pre-assembled assembly; the test piece pre-assembled assemblycomprises a pre-assembled outer frame which is adhered to the test piece frame, a pre-assembled inner frame which is adhered to the test pieces of the doors and windows, a supporting piece which is supported between the pre-assembled outer frame and the pre-assembled inner frame, and a filling piece which fills between the pre-assembled inner frame and the pre-assembled outer frame; after the adoption of the device for detecting the heat insulating properties of the building doors and windows, the mounting efficiency of the test pieces of the doors and windows can be improved, so that the detecting efficiency of the heat insulating properties of the overall test pieces of the doors and the windows can be improved.
Owner:宁波和邦检测研究有限公司
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