8 results about "Area density" patented technology

The application relates to a double-sided electrode sheet manufacturing method and device and a double-sided electrode sheet. The method comprises the following steps: a mixture is respectively arranged in a first multi-roller calender mechanism and a second multi-roller calender mechanism, first, a first active material layer is formed by heat-combining a first side of a double-sided carbon-coated foil current collector and the mixture in the first multi-roller calender mechanism to obtain a single-sided electrode sheet, then, the area density of the single-sided electrode sheet is determined during the process of transferring the single-sided electrode sheet to the second multi-roller calender mechanism through a transmission component, a second active material layer is formed by heat-combining a second side of the double-sided carbon-coated foil current collector and the mixture in the second multi-roller calender mechanism to obtain a double-sided electrode sheet, the second active material layer is formed to obtain the double-sided electrode sheet, and the area density of the double-sided electrode sheet is determined. By adopting the method, the area densities of the two active material layers on the two sides of the double-sided electrode sheet can be accurately determined while the double-sided electrode sheet is manufactured.

Methods and systems involve a plurality of patterns, each pattern in the plurality of patterns comprising a plurality of edges. Methods and systems also involve determining a neighborhood open area density for the plurality of patterns; determining a geometric loading effect correction, wherein the geometric loading effect correction comprises a calculated offset from an edge of a pattern in the plurality of patterns, and wherein the calculated offset is determined using the neighborhood open area density; and adjusting the edge of the pattern in the plurality of patterns using the geometric loading effect correction.

Methods and systems involve a plurality of patterns, each pattern in the plurality of patterns comprising a plurality of edges. Methods and systems also involve determining a neighborhood open area density for the plurality of patterns; determining a geometric loading effect correction, wherein the geometric loading effect correction comprises a calculated offset from an edge of a pattern in the plurality of patterns, and wherein the calculated offset is determined using the neighborhood open area density; and adjusting the edge of the pattern in the plurality of patterns using the geometric loading effect correction.

The application discloses a composite sound-absorbing cloth, a manufacturing process and application. The first fiber cloth layer, the second fiber cloth layer, the third fiber cloth layer and the fourth fiber cloth layer of the composite sound-absorbing cloth are overlapped and bonded through a glue point layer. The composite sound-absorbing cloth, the manufacturing process and the application introduce the factor of the material density of the fiber cloth layer and limit the thickness of each fiber cloth layer, so that the difference in the area density of the fiber cloth layer can be reflected in the difference in acoustics. The fiber cloth layers with different area densities can produce superior sound-absorbing effects at different frequencies, respectively, and form interfaces with different structures between the fiber cloth layers with different area densities, thereby forming a dissipating effect. The glue point layer bonds the adjacent fiber cloth layers, so that the bonding effect is high quality, and the pores of the fiber cloth layers are retained at the same time, thereby greatly improving the acoustic effect of the composite sound-absorbing cloth.

The present application relates to the technical field of pole piece coating quality control, and discloses a pole piece coating quality detection method and system based on reflection and transmission ultrasonic fusion, comprising: collecting the reflection and transmission ultrasonic signals of the pole piece and completing spatial alignment, extracting the first reflection wave amplitude, interface echo time difference and other characteristics from the reflection signal, extracting the energy, center frequency offset, propagation time and other parameters from the transmission signal, constructing a joint correlation model based on the propagation characteristics of ultrasonic waves in multi-layer media, and synchronously solving the coating thickness and area density; a high-dimensional defect sensitive vector is constructed by integrating the physical consistency characteristics of the two types of signals, and precise defect determination is realized by combining spatial position and change trend verification, the system cooperates six functional units to output quality distribution map and process capability index in real time, the information limitation and interference problem of the traditional single detection mode is overcome, and the high-precision monitoring demand of the whole process of the high-speed coating production line is met.

The application discloses a kind of area density synchronous measurement method, device, equipment and medium, wherein, area density synchronous measurement method includes: obtaining the running length L1 between the first area density instrument to the second area density instrument when synchronously running;Obtain the running length L2 between the first area density instrument to the second area density instrument when actually running;According to L1 and L2, determine the compensation value ΔL of the second area density instrument, wherein, ΔL=(L1-L2) / 2.In this way, in the actual measurement process, the second area density instrument is compensated by compensation value ΔL, so that the scanning track of the first area density instrument and the second area density instrument coincides, so that the area density of coating can be accurately calculated.

Provided is a wooden load-bearing wall including a gypsum-based load-bearing bearing board fastened onto a wooden structure wall base with fasteners. The load-bearing bearing board includes a main material or core material formed of a board-shaped hardened gypsum, and a paper member covering at least front and back surfaces of the main material or core material. The load-bearing bearing board has an area density or weight per unit area of 6.5 to 8.9 kg / m2, lateral nail resistance of 500 N or greater, and compressive strength of 6.5 N / mm2 or greater. Each of the fasteners is a metal nail including a head portion and body portion. An area ratio of an area of the head portion to a cross-sectional area of the body portion is set at a value of 6 to 13. The load-bearing wall has a value of an ultimate displacement (δu) being greater than 20×10−3 rad.

The application provides a kind of pole piece coating closed loop control method, by closed loop control process, whole area density is adjusted, width size is adjusted and single point area density is adjusted in sequence respectively, the adjustment of whole area density is first adjusted longitudinal area density by adjusting pump speed according to the detection result of thickness gauge, then adjust T block height and / or the distance of die two ends to pole piece to adjust transverse area density, then adjust the distance of die left and right two ends to pole piece and / or adjust pump speed to adjust width size according to the detection result of visual detector, finally, adjust single point area density by adjusting each adjusting T block according to the detection result of thickness gauge, each link is closed loop control, can realize full-automatic accurate adjustment, from whole area density to width to single point area density, can guarantee higher coating quality, while greatly reducing labor cost.