15 results about "White layer" patented technology

The utility model relates to a photovoltaic module, in particular to a ceiling photovoltaic module with a colored adhesive film, which comprises at least one group of batteries, the colored adhesive film tightly attached to at least one side of the batteries, and glass tightly attached to the colored adhesive film, the ceiling comprises a white layer and a color layer tightly attached to the white layer, the color layer has a single color or multiple colors distributed irregularly, and therefore the ceiling can be decorative through the color layer.

The invention belongs to the technical field of full-biodegradable mulching films, discloses a color-matching full-biodegradable perforated mulching film for tobacco cultivation as well as a preparation method and a use method of the mulching film, and solves the problem that an existing degradable mulching film cannot be matched with a tobacco growth cycle. The two sides of the mulching film are divided into an upper layer and a lower layer, the upper layer is a silver layer, the color of the upper layer is silver, and the thickness of the upper layer is 0.004-0.010 mm; the lower layer is a black layer, the color is black, and the thickness is 0.004-0.010 mm; the middle part of the mulching film is a white layer, the color of the white layer is white, and the thickness of the white layer is 0.008-0.020 mm; the width of the white layer of the mulching film accounts for 25%-30% of the width of the whole mulching film, transplanting holes are evenly distributed in the white layer of the mulching film, the hole diameter of the transplanting holes ranges from 30 mm to 50 mm, and the hole distance ranges from 30 cm to 60 cm. The method can meet the tobacco cultivation requirement, and the yield and quality of tobacco are effectively improved.

The application discloses a preparation method of a monolithic large-size counterweight assembly, and belongs to the technical field of counterweight assembly production. The preparation method comprises the following specific steps: S1, a preparation step: preparing iron, carbon and some alloy elements for casting, and preparing a casting mold of the counterweight assembly; S2, raw material smelting: smelting the casting raw material prepared in S1 by using an electric arc furnace, so that the casting raw material reaches a proper molten state. The counterweight assembly is cast by using multiple different materials, so that the flowability and lubricity of the casting solution are improved, the wear resistance, the abrasion resistance and the shock resistance of the counterweight assembly casting are improved, the corrosion resistance of the counterweight assembly in an industrial scene is significantly increased, the white layer depth is reduced, and the hard points of carbides are eliminated, so that the large-size counterweight assembly has a long service life in a relatively strong corrosive environment.

This invention relates to the field of photovoltaic encapsulant film technology, and particularly to a method for testing the crosslinking degree of composite white photovoltaic encapsulant films. To address the problem that existing methods for testing the crosslinking degree of composite white photovoltaic encapsulant films often result in a significant discrepancy between the measured crosslinking degree and the actual crosslinking degree, this invention provides a method for testing the crosslinking degree of composite white photovoltaic encapsulant films. The composite white photovoltaic encapsulant film comprises a transparent layer and a white layer. The crosslinking degree of the composite white photovoltaic encapsulant film is calculated using the following formula: The crosslinking degree measured by this method is closer to the actual crosslinking degree and can more accurately reflect the degree of crosslinking of the resin in the composite white photovoltaic encapsulant film.

This invention provides a coated tool for cutting difficult-to-machine materials that has excellent wear resistance. [Solution] The coated tool for cutting difficult-to-machine materials comprises a tool for cutting difficult-to-machine materials and a hard coating formed on at least a portion of the outer surface of the tool for cutting difficult-to-machine materials, wherein the hard coating contains a nitride of a metallic element or a nitride of a metallic element and a metalloid element, and the cross-section of the hard coating has a continuous 1000 μm 2 The number of droplets within the range is 50 or less, and when the hard coating is observed by STEM at a magnification of 1.5 million times, the dark-field image of the structure of the cross-section of the hard coating has a striped structure that includes a black layer shown relatively as black and a white layer shown relatively as white.

To provide a leakage oil detection material capable of detecting leakage oil with high sensitivity, quickly, in a short time, and surely even in a wet state without the risk of mistaking it for leakage oil even if it gets wet with water such as rainwater.SOLUTION: The oil leakage detection material includes a colored layer (16) having oil absorbency, a white layer (14) provided in contact with an upper surface of the colored layer (16), the white layer (14) containing white powder and having oil absorbency, a protective layer (12) provided to cover an upper surface of the white layer (14), the protective layer (12) being made of a transparent hydrophobic resin, and an oil absorbing layer (18) provided on a lower surface side of the colored layer (16), the oil absorbing layer (18) having oil absorbency and oil retainability and water repellency. A through-hole reaching the oil absorbing layer 18 from the outside is formed between the adjacent laminated pieces 17 and the leaked oil is absorbed by the oil absorbing layer 18 to permeate the colored layer 16 and the white layer 14 and the white layer 14 becomes a transparent state or a translucent state and the hue of the colored layer 16 can be visually observed through the protective layer 12.SELECTED DRAWING: Figure 1

The present invention provides a white coated LED filament and its production process and LED bulb, optimizing the white coated powder from being painted originally on internal surface of the glass shell to be painted on the surface of the filament, thus forms a coated white layer on the surface of the filament, and bonds whit the filaments for one-time molding, which simplifies the existing internal powder painting process of the glass shells, and reduces the cost of the finished products in terms of the usage and production of the clients, and also greatly improving the stability of the white coated filament bulbs, so that the color bleaching and its photoelectric parameters are in a manageable state, therefore the production process is become simply, the cost is lower, and improve the clients' usage scope, reduce the clients' usage cost, and can satisfy the existing market client's requirements for the product of the filaments bulbs with white coated.

The present invention provides a white coated LED filament and its production process and LED bulb, optimizing the white coated powder from being painted originally on internal surface of the glass shell to be painted on the surface of the filament, thus forms a coated white layer on the surface of the filament, and bonds whit the filaments for one-time molding, which simplifies the existing internal powder painting process of the glass shells, and reduces the cost of the finished products in terms of the usage and production of the clients, and also greatly improving the stability of the white coated filament bulbs, so that the color bleaching and its photoelectric parameters are in a manageable state, therefore the production process is become simply, the cost is lower, and improve the clients' usage scope, reduce the clients' usage cost, and can satisfy the existing market client's requirements for the product of the filaments bulbs with white coated.

The present application relates to the technical field of photovoltaic adhesive film, especially to a double-glass white adhesive film and a preparation method thereof, comprising an anti-overflow white layer, a white anti-polarization layer and a high adhesion layer which are sequentially stacked from top to bottom, wherein the anti-overflow white layer is a reticular structure film, and its composition comprises: 50-75 parts by weight of inorganic fiber, 20-50 parts by weight of organic fiber and 0.2-3 parts by weight of silane coupling agent; the anti-overflow white layer in the present application ensures the appearance yield of the module, and optimizes the adhesive film production process; the reliability is higher than that of the conventional white pretreatment type adhesive film, and there is no problem of long-term storage peel strength and no problem of delamination after aging; the anti-overflow white layer is covered by inorganic fiber monofilament and organic fiber monofilament, which can increase the strength of the anti-overflow white layer, avoid the fracture of the anti-overflow white layer and thus cause the lamination overflow of the module and the appearance defect.

Provided is a white laminated polyester film having adhesion of a coating layer to a base material layer, adhesion to UV ink, sealability, and writing properties, excellent appearance clarity, and less powdering, wherein a coating layer is provided on at least one surface of a white polyester resin layer, the coating layer contains: a thermosetting resin composition (A), inorganic particles (B), a functional resin composition (C), and an additive (D) containing at least a defoaming agent, the 85-degree specular glossiness of the surface of the coating layer is 3.3% or more, and the powdering property of the surface of the coating layer based on a Shoji-type friction tester is 3 or more.

The utility model discloses a black and white PETG (polyethylene terephthalate glycol) shrink film, which comprises five layers of co-extrusion composite structures, namely a buffer layer D positioned in the middle, a white layer B close to the outer side of the buffer layer D, a black layer C close to the inner side of the buffer layer D, a printing layer A on the outer side of the white layer B, and a self-repairing layer E on the inner side of the black layer C. The utility model further discloses a special preparation system for the black and white PETG shrink film, which can be used for uninterruptedly producing the black and white PETG shrink film in batches. According to the black and white PETG shrink film with the five-layer co-extrusion composite structure disclosed by the utility model, the problems of microcrack propagation and barrier attenuation of the traditional PETG shrink film are solved by utilizing the elastic body structure of the D layer to dissipate stress and the self-repairing and forced closing of microcracks of the E layer through an interlayer synergistic effect, and the isolation service life of the film is prolonged.

The invention discloses a black and white PETG shrink film which comprises five layers of co-extrusion composite structures, the five layers of co-extrusion composite structures are a buffer layer D located in the middle, a white layer B close to the outer side of the buffer layer D, a black layer C close to the inner side of the buffer layer D, a printing layer A on the outer side of the white layer B, and a self-repairing layer E on the inner side of the black layer C. In addition, the invention also discloses a preparation method of the black and white PETG shrink film. According to the black and white PETG shrink film with the five-layer co-extrusion composite structure, through the interlayer synergistic effect, the problems of microcrack propagation and barrier attenuation of a traditional PETG shrink film are solved by utilizing the elastomer structure of the D layer to dissipate stress and the self-repairing and forced closing of microcracks of the E layer, and the isolation service life of the film is prolonged.

To provide a brittle laminated label for laser printing which has an alteration preventing function that the label is broken and cannot be reused when the label is peeled off after once stuck and is excellent in low-temperature flexibility.SOLUTION: A laser-printable brittle laminated label 100 includes (A) a colored layer 10 containing a first acrylic resin and a pigment, (B) a white layer 20 containing a second acrylic resin, a white pigment, and inorganic particles 21, and (C) an adhesive layer 30 laminated on the white layer (B), wherein the content of the inorganic particles 21 in the white layer 20 (B) is 7.5 to 25 parts by mass based on 100 parts by mass of the second acrylic resin.SELECTED DRAWING: Figure 1

The present invention provides a coated tool for cutting hard-to-cut materials that has excellent wear resistance. This coated tool for cutting hard-to-cut materials comprises a tool for cutting hard-to-cut materials and a hard film that is formed on at least a portion of the outer surface of the tool for cutting hard-to-cut materials. The hard film includes a nitride of a metal element or a nitride of a metal element and a metalloid element. In a cross-section of the hard film, the number of droplets in a continuous range of 1000 μm2 is 50 or less. The hard film has a stripe pattern structure in which, when a cross-section in the vicinity of 1 μm from the outermost surface of the hard film in the film thickness depth direction is observed using a STEM at a magnification of 1,500,000 times, a dark-field image of the structure of the observed cross-section of the hard film includes a black layer that shows as relatively black and a white layer that shows as relatively white.

The application discloses a kind of nitrogenized gear ring white layer loose repair process, belong to metal material heat treatment technical field;Including to nitrogenized unqualified gear ring is heated to 550 ℃-560 ℃ in stages, diffusion decomposition is carried out, decomposition rate 85%-90%, time 25h-30h;Gear ring is cooled to 500 ℃-510 ℃ with furnace, nitrogen replacement is passed through when cooling;Strong penetration stage, temperature 500 ℃-510 ℃, decomposition rate 30%-40%, time 10h-15h;Gear ring is heated to 520 ℃-530 ℃ with furnace, ammonia replacement is passed through during heating period;Diffusion stage, 520 ℃-530 ℃, decomposition rate 65%-70%, time 15h-20h;Gear ring is cooled to 350 ℃ with furnace;Gear ring is cooled to 100 ℃ with furnace, air cooling to room temperature is discharged;The application can be white layer loose grade from 4-5 grade by pure process means repair to 1-2 grade, without changing surface roughness nor increasing deformation.