188results about How to "Good filling effect" patented technology

The invention belongs to the field of multivariate time series data missing value filling, and discloses a time series missing value filling method and system based on a diffusion model, and the method comprises the steps: 1, dividing a time series data set into a training set, a verification set and a test set, and carrying out the data processing of each piece of time series data, obtaining a 01 mask matrix of each piece of time sequence data, a to-be-filled target and observable time sequence data; 2, a training process is carried out, and a trained denoising network is obtained; and step 3, inputting a forward noise adding result corresponding to the test set into the trained denoising network obtained in the step 2, and outputting a reverse denoising result as filled time sequence data. According to the method, the flexibility of noise weight setting is realized, and the applicability and universality of the model to different time sequence data sets are enhanced.

The invention provides a time sequence data missing value filling method based on a diffusion model. The method comprises the following steps: constructing a filling model, training the filling model, and performing data missing value filling by utilizing the trained filling model. The filling model comprises a denoising diffusion module and an evaluation filling module; the de-noising diffusion module comprises an input data processing module, a residual connection block and an output integration module; the evaluation filling module comprises an incremental filling module and a sampling result integration module; according to the method, based on the current most advanced diffusion model architecture DiffWave, a self-supervised training mode is adopted, a filling target is generated through data of a Mask non-missing part, and meanwhile, an observable part information is used for assisting a diffusion model to predict noise, so that efficient and accurate training of the diffusion model is realized; according to the method, the time sequence missing value filling effect can be effectively improved, the problem of data missing in the time sequence is solved, and the data quality and value are improved.

The invention relates to a modified fly ash-based mining filling material and a preparation method thereof. The material comprises the following components: modified fly ash, lime, cement, gypsum, sodium sulfate, epoxy resin and the like. By using a composite modification system of the nitrogen-containing silane coupling agent, triethanolamine and organic acid, the dispersity of the fly ash is improved, and the fly ash is uniformly distributed in the slurry; lime, gypsum and sodium sulfate are used as excitants, so that the filling material keeps good strength and stability at high temperature, and the risk of structural damage caused by temperature rise is avoided; and meanwhile, the material cannot be excessively embrittled or the strength of the material is not reduced in a low-temperature environment. Besides, due to the excellent bonding performance of the added epoxy resin, the fly ash, the cement and other materials can be effectively glued into a filling body with certain strength and stability, the epoxy resin is also beneficial to reducing the internal stress and deformation of the cured materials, and the long-term stability of the filling body is ensured. The filling material disclosed by the invention is particularly suitable for mine filling and supporting operation, and can provide a reliable filling effect under an extreme temperature condition.

The invention provides a clustering analysis-driven high-precision missing data filling method, which comprises the following steps of S1, acquiring data containing missing values, and preprocessing the data containing the missing values; s2, inputting the data matrix X, the mask matrix M, the prompt matrix H and the clustering label C1 into a generative adversarial network, and obtaining a filling matrix X'and a probability matrix P through nonlinear transformation; s3, inputting the filling matrix X'into the depth subspace clustering network to obtain a reconstructed data matrix and a self-expression layer coefficient matrix; s4, calculating the product of the matrix U and the transpose of the U, and adjusting to obtain an affinity matrix A; s5, distributing the samples to different clusters, and outputting a new clustering label C2; s6, repeating the steps S2 to S5, and outputting the filling matrix X'obtained in the step S2 at the moment as a high-precision filling data matrice.According to the method, the characteristics of potential structures and modes in data are captured through the clustering analysis technology, and the precision and quality of data filling are further improved.

The invention relates to the field of concrete additives, in particular to a heat-resistant anti-freezing water-based permeable inorganic waterproof agent as well as a preparation method and application thereof. The invention discloses a heat-resistant and anti-freezing water-based permeable inorganic waterproof agent which is prepared from the following raw materials in parts by mass: 55-70 parts of active potassium silicate, 10-12 parts of Portland cement, 10-20 parts of modified silicon dioxide, 5-10 parts of a filling agent, 2-4 parts of a coupling agent, 0.5-1.5 parts of a catalyst, 3-8 parts of a dispersing agent, 1.5-3 parts of a stabilizer and 30-50 parts of deionized water. The inorganic waterproof agent prepared by the invention not only has excellent waterproof performance, but also can effectively improve the corrosion resistance, aging resistance, stability and the like of concrete at the same time, can meet the construction requirements of existing deep operation, has very excellent comprehensive performance, and has very excellent application prospects.

The invention relates to the technical field of ceramics, in particular to shadow blue glaze, ceramic with the glaze and a preparation method of the shadow blue glaze, and the preparation method comprises the following steps: preparation of a ceramic body: weighing the following raw materials in parts by weight: 35-40 parts of sandy soil, 15-20 parts of quartz, 3-5 parts of dolomite, 2-5 parts of bentonite and 2-5 parts of kaolin; according to the ceramic with the shadow blue glaze, the ceramic body is matched with the shadow blue glaze, the antibacterial property, glossiness and wear resistance of a ceramic product obtained through sintering improvement are harmoniously improved, and the stability of the acid and alkali resistance of the product is remarkable.

The invention relates to a film-forming filtrate reducer and a preparation method thereof, workover fluid and a workover method, and relates to the field of workover, the film-forming filtrate reducer comprises an oil phase, an emulsifier, acrylamide, N-vinyl pyrrolidone, 2-acrylamido-2-methylpropanesulfonic acid, hexadecyl dimethyl allyl ammonium chloride, water and an initiator; the workover fluid comprises water, a tackifier, a plugging agent, an acid-soluble temporary plugging agent, an interface modifier, a corrosion inhibitor, a weighting agent and the film-forming filtrate reducer. According to the film-forming filtrate reducer provided by the invention, specific acrylamide, N-vinyl pyrrolidone, acrylamido-2-methylpropanesulfonic acid and hexadecyl dimethyl allyl ammonium chloride are subjected to reverse emulsion polymerization to obtain a polymer, and the polymer is greatly adsorbed on the surface of a filter cake under the action of high temperature and high pressure to form a high-toughness polymeric film; the filter loss is reduced; the temperature resistance of the workover fluid is larger than or equal to 180 DEG C, the pressure-bearing plugging capacity of the workover fluid to a crack core is larger than 10 MPa, and the permeability recovery value is larger than or equal to 92%.

The utility model belongs to the technical field of down filling machines, and particularly relates to an automatic down filling machine which comprises a down filling machine body, a down drawing pipe is arranged on one side of the down filling machine body, a down outlet pipe is arranged on the side face of the down filling machine body, and an observation window is formed in the upper side of one side of the down outlet pipe of the down filling machine body. Supporting rods are symmetrically arranged on the two sides of the down filling machine body, fixing rods are arranged on the upper sides of the supporting rods, clamping rods are arranged on the lower sides of the fixing rods, inserting rods are symmetrically arranged on the upper sides of the clamping rods, the inserting rods penetrate through the fixing rods to the upper sides and are provided with springs, and handle rods are arranged at the upper ends of the inserting rods. A quilt is clamped between the supporting rod and the clamping rod, the spring pulls the handle rod, the handle rod pushes the inserting rod downwards, the inserting rod pushes the clamping rod downwards to press the quilt, the side of the quilt is adjusted, the quilt is overall unfolded, manual unfolding is not needed, filling is convenient, down feather can spread in the quilt conveniently, people only need to conduct auxiliary smoothing on the quilt, and the down feather filling efficiency and effect are improved.

The present invention discloses a filling device for controlling surface subsidence in a coal mine, which can effectively ensure the filling effect and prevent collapse. At the same time, slurries with different viscosities or concentrations are set, which can effectively realize the filling of slurries in gaps. Moreover, slurries with high viscosity or concentration are supplemented with pressurization by a rotating drive mechanism, which can effectively realize the pressurization of slurries with low viscosity, improve the pressurization capacity and filling effect, and realize effective filling of gaps.

The invention relates to the field of coatings, and particularly discloses a two-component fireproof heat-insulating coating and a preparation method thereof. The coating provided by the invention comprises an agent A and an agent B, wherein the agent A comprises the following raw materials in parts by weight: 10-20 parts of bisphenol A epoxy resin, 40-50 parts of an intumescent flame retardant, 2-4 parts of glass fibers, 2-4 parts of needle-like wollastonite, 3-7 parts of fumed silica, 10-20 parts of a diluent, 0.3-0.5 part of a flatting agent and 8-15 parts of epoxy polyhedral oligomeric silsesquioxane modified glass fibers; the agent B is prepared from the following raw materials in parts by weight: 10 to 20 parts of polyamide curing agent, 10 to 15 parts of diluent and 7 to 10 parts of amino cage type polysilsesquioxane modified needle-like wollastonite. The coating disclosed by the invention is good in fireproof and heat-insulating effects and high in adhesive force.

The invention relates to a nested plugging device which comprises a woven body, and the woven body comprises at least two plugging supports. Two adjacent sections of plugging brackets are connected through a nesting structure, and the nesting structure comprises a first connecting surface arranged on one plugging bracket and a second connecting surface arranged on the other plugging bracket; the first connecting face is a connecting protrusion, the second connecting face is provided with a connecting groove corresponding to the connecting protrusion, and the connecting protrusion and the connecting groove are connected in any mode of clamping, welding, heat sealing or integral shaping. The woven body is arranged into the multi-section plugging stent structure, and every two adjacent sections of plugging stents are connected through the corresponding nesting structure, so that the flexibility of the plugging device can be improved, the plugging device can adapt to a zigzag conveying channel and an irregular cavity, and the radial supporting force of the whole stent can be improved.

The invention relates to the technical field of latex powder, and discloses flexible vinyl chloride-vinyl acetate-acrylic waterproof latex powder and a preparation method thereof, and the flexible vinyl chloride-vinyl acetate-acrylic waterproof latex powder is prepared from the following components: a vinyl chloride-vinyl acetate-acrylic emulsion, a polyvinyl alcohol aqueous solution, an organic siloxane dispersion liquid, an organic silicon powder waterproof agent, an anti-caking agent and an inorganic filler. According to the invention, the redispersible latex powder with excellent performance is successfully prepared by carefully selecting and adjusting the type and dosage of the organosiloxane and the type of the anti-caking agent and accurately setting the temperature of the drying tower. When the latex powder is applied to the field of constructional engineering, the waterproof performance and durability of mortar can be remarkably enhanced, and wide application potential is shown.

The forge piece structure of the partition piece comprises a body and a cylindrical arching part, the axis of the cylindrical arching part is parallel to the plane where the body is located, the cylindrical arching part protrudes out of the body in the thickness direction, and the part, protruding out of the body, of the cylindrical arching part is a smooth cambered surface. And the fillet radius of the cylindrical arching part and the edge of the side surface is less than or equal to 5mm. The forge piece structure of the partition piece has the advantages of being free of protruding blocks on the surface, higher in safety performance, good in filling effect, small in deformation amount, high in material utilization rate and beneficial to cutting machining for positioning.

The invention belongs to the technical field of solid waste resource utilization, and particularly relates to an adsorbed waste kaolin-based rubber filler as well as a preparation method and application thereof. The method comprises the following steps: firstly, carrying out solid-liquid separation on heavy metal ion wastewater adsorbed by kaolin to obtain solid waste residue, namely waste kaolin, mixing the waste kaolin with a precipitator, co-grinding, and drying to obtain precipitated kaolin; calcining the precipitated kaolin at high temperature to obtain calcined kaolin; and finally, co-grinding the calcined kaolin and the modifier, wherein the grinding product is the waste kaolin-based rubber filler. The prepared waste kaolin-based rubber filler can be filled into a rubber base material to improve the mechanical properties of a rubber composite material. According to the invention, the waste kaolin adsorbed with heavy metal ions is effectively utilized, solid waste discharge is reduced, the rubber filler with high added value is provided, and a new idea is provided for development and application of the rubber filler.

The utility model discloses a liquefied natural gas filling supporting device which comprises a first bottom plate and a second bottom plate, a connecting plate is connected between the first bottom plate and the second bottom plate, a supporting plate is rotationally connected to the side, close to the connecting plate, between the first bottom plate and the second bottom plate, and a telescopic rotating assembly capable of enabling the supporting plate to rotate is installed on the connecting plate. And moving assemblies are arranged on the first bottom plate and the second bottom plate, moving plates are installed on the moving assemblies, second air cylinders are installed on the moving plates, first clamping assemblies are installed at the telescopic ends of the second air cylinders, a containing groove is formed in the supporting plate, and second clamping assemblies are arranged on the two sides in the containing groove. According to the liquefied tank filling device, a user can conveniently move a hydraulic tank, the labor intensity of the user is reduced, the working efficiency of the user is improved, the stability of the liquefied tank filling device in the liquefied tank filling process is improved, the filling effect is better, and meanwhile the liquefied tank filling device is easy to operate and convenient to use by the user.

The invention discloses an injection molding device with a circulating cooling function, and relates to the technical field of injection molding devices.The injection molding device comprises a feeding mechanism, an injection molding mechanism, a transmission mechanism and a temperature control mechanism, the feeding mechanism and the injection molding mechanism are connected in a fastened mode, the transmission mechanism and the injection molding mechanism are connected in a fastened mode, and the temperature control mechanism and the injection molding mechanism are connected in a fastened mode; the temperature control mechanism is communicated with the feeding mechanism, the feeding mechanism is communicated with the injection molding mechanism, the temperature control mechanism is in fastening connection with the injection molding mechanism, the temperature control mechanism is communicated with the injection molding mechanism, the transmission mechanism is in fastening connection with the injection molding mechanism, opening, closing and injection molding actions of the injection molding mechanism are driven by the transmission mechanism, and the temperature control mechanism is in fastening connection with the injection molding mechanism. The temperature control mechanism adjusts the temperature of the injection molding mechanism and the temperature of the feeding mechanism, and raw materials enter the injection molding mechanism through the feeding mechanism and are heated and plasticized under the action of the temperature control mechanism.

The present invention discloses a semiconductor lead frame processing equipment for an automobile interactive taillight and its products, which relate to the field of semiconductor technology, including a workbench unit, an integrated processing unit, and a plurality of integrated processing units are arranged on the top of the operating table. The downward movement of the push-out bottom plate inside the integrated processing unit completes the downward positioning of the coil inside the positioning frame and limits the downward pressure of the electric test pin pre-welded on the top of the coil, thereby reducing the offset of the electric test pin during the stamping process of the stamping block, and the pressing of the stamping block and the electric test pin will form an injection channel that is connected to the construction cavity, thereby completing the stamping modeling, that is, the coil on the top surface of the middle sleeve hollow block, the push-out bottom plate, the stamping block, the surrounding plate, and the bearing plate forms a sealed mold cavity between the construction cavity and the positioning frame, so that the side wall of the reaction cup and the mouth of the reaction cup are injection molded inside the mold cavity, thereby reducing the time consumption of re-clamping and re-injection molding to form the side wall of the reaction cup and the mouth of the reaction cup after stamping.

This tobacco sheet for a non-combustion heating-type flavor inhaler contains a tobacco powder having a cumulative 90% particle diameter (D90) of at least 200 µm in a volume-based particle size distribution as measured by a dry laser diffraction method.

The invention discloses a sealing material for a solid oxide fuel cell as well as a preparation method and application of the sealing material, and relates to the technical field of solid oxide fuel cells. The invention relates to a sealing material for a solid oxide fuel cell. The sealing material comprises mica and barium aluminum silicate-based glass, the barium aluminum silicate-based glass comprises the following components in percentage by mass: 10%-15% of BaO, 5%-10% of Al2O3, 15%-25% of B2O3, 6%-13% of CaO, less than or equal to 5% of La2O3 and the balance of SiO2. The sealing material obtained by adjusting the proportion of the components meets the requirements that the thermal expansion coefficient is larger than or equal to 8 * 10 <-6 > / DEG C and the softening point is low, thermal expansion coefficient matching and chemical stability are improved, chemical compatibility with other battery assemblies is good, long-term durability of sealing is ensured, production cost is reduced, and the sealing requirement of an SOFC stack is met.

The invention discloses a total endoscopic fusion cage device for bone grafting. The total endoscopic fusion cage device comprises a pushing and injecting part, an injecting part and an injecting outer shell which are sequentially connected from inside to outside in a sleeving mode. The injection part and the injection outer shell are detachably connected through a connecting part; the injection device further comprises a retractable embedded bag body which is detachably connected with the injection outer shell body. The injection part comprises a first injection part and a second injection part which are sequentially matched with the injection outer shell for use, and an open hole matched with the filling opening of the embedded bag body is formed in the side face of the top of the first injection part; the top end of the second injection part is of an opening structure; the injection outer shell is provided with a side opening and a top opening which are matched with the first injection part and the second injection part respectively. According to the invention, the embedded capsule body structure can be unfolded through the implantation of pushing and injecting bone cement, and the bone cement is matched with the embedded capsule body to be implanted into each vertebral body gap, so that the accurate control on the implementation position and angle is realized, and the technical requirement of uniform distribution of bone grafting materials is met.

A thermally conductive filler containing coarse inorganic particles and small-diameter inorganic particles, the coarse inorganic particles including large-diameter fused alumina particles having an average particle diameter in the range of 20 [mu] m to 50 [mu] m inclusive and medium-diameter inorganic particles having an average particle diameter in the range of 1.0 [mu] m to 10 [mu] m inclusive at a mass ratio of 60: 40 to 100: 0, the average particle diameter of the small-diameter inorganic particles is within the range of 0.1 [mu] m or more and less than 1.0 [mu] m, and the content of the small-diameter inorganic particles is within the range of 15% by mass or more and 30% by mass or less.

The invention relates to a photoelectric sensor assembly and a preparation method thereof, a readout circuit structure and a photoelectric structure. The photoelectric sensor assembly comprises a readout circuit structure and at least one photoelectric structure. The readout circuit structure is provided with a first surface and at least one readout unit, and the first surface of each readout unit is provided with a first welding bump setting area and a first peripheral area; each photoelectric structure is correspondingly bonded on one readout unit to form one photoelectric sensor unit, the photoelectric structure is provided with a third surface, and the third surface is provided with a second welding bump setting area and a second peripheral area; in each photoelectric sensor unit, strip-shaped protrusions are arranged in peripheral areas on the two opposite sides of the first welding protruding point arrangement area and the second welding protruding point arrangement area.

The invention relates to the technical field of filling machines, in particular to a filling machine for feed additive production, which comprises a stabilizing frame, a control panel is fixedly connected to the left side surface of the stabilizing frame, a support frame is fixedly connected to the outer surface of the stabilizing frame, a conveying cylinder is arranged on the top surface of the support frame, and an auger conveyor is arranged in the conveying cylinder. A first motor is fixedly connected to the outer surface of the auger conveyor, and a feeding port is formed in the top face of the conveying cylinder. And the discharging pipe is mounted on the inner bottom wall of the conveying cylinder, and a mounting bearing is arranged on the outer surface of the discharging pipe. A rotating rod and a limiting semi-ring can be driven to rotate through a second limiting roller, at the moment, the rotating rod can drive a mounting sleeve, an adaptive groove, a mounting ring and a flapping plate to rotate, the surface of a bag body can be flapped through rotation of the flapping plate, uneven positions in the bag body can be flapped evenly, the bag body is evenly filled with feed, and the feeding efficiency is improved. And the filling effect is good.

The invention relates to a semiconductor structure and a forming method thereof, the semiconductor structure comprises a first substrate, the first substrate comprises a plurality of mutually discrete photosensitive areas and isolation areas located between the adjacent photosensitive areas, the first substrate comprises a first surface and a second surface which are opposite, and the second surface is used as a light incident surface; the deep trenches are located in the isolation regions, the deep trenches penetrate through the first substrate in the normal direction of the surface of the first substrate, each deep trench comprises a first trench region and a second trench region, the distance from the first trench region to the first surface is smaller than the distance from the second trench region to the first surface, the first trench region has a first projection on the surface of the first substrate, and the second trench region has a second projection on the surface of the second substrate; the second groove region has a second projection on the surface of the first substrate, and the second projection is located in the range of the first projection; the isolation structures are located in the deep trenches, each isolation structure comprises a light reflection layer, the utilization rate of incident photons is improved, light transmission and reflection losses are reduced, and then the photon detection efficiency is improved.

According to the technical scheme, the quantitative manual filling machine is characterized in that the quantitative manual filling machine comprises a base, a supporting frame is arranged at the upper end of the base, a feeding hopper is arranged above the supporting frame, a quantitative barrel is arranged at the lower end of the feeding hopper, the lower end of the feeding hopper is communicated with a material conveying pipe, and the material conveying pipe is communicated with the quantitative barrel. The other end of the conveying pipe is communicated with the side wall of the bottom end of the quantifying cylinder, a quantifying mechanism is arranged in the quantifying cylinder, a discharging pipe is arranged at the lower end of the quantifying cylinder, and the discharging pipe is communicated with the quantifying cylinder through a stretching mechanism.

The invention discloses a semiconductor structure and a forming method thereof, and the method comprises the steps: providing a semiconductor substrate which is provided with one or more grooves; a single-layer silicon seed crystal layer or a laminated structure of multiple silicon seed crystal layers is formed on the inner wall of each groove, and each silicon seed crystal layer has respective silicon seed crystal layer surface roughness; forming a polycrystalline silicon layer on the single-layer silicon seed crystal layer or the laminated structure so as to fill the groove; wherein the surface roughness of each silicon seed crystal layer is smaller than the surface roughness of the inner wall of the groove. According to the invention, the surface roughness of the polycrystalline silicon layer can be reduced.

The application provides a semiconductor device and a preparation method thereof. The method comprises the following steps: providing a substrate, forming a trench extending from a first surface of the substrate to an interior of the substrate, forming a shielding dielectric layer at a bottom and a part of a sidewall of the trench, and forming a shielding gate in the trench. The shielding gate fills a part of the trench, a top surface of the shielding gate is higher than a top surface of the shielding dielectric layer, and a distance from the top surface of the shielding dielectric layer to the first surface is a first depth. A part of the shielding gate is etched to make the top surface of the shielding gate flush with the top surface of the shielding dielectric layer, and a predetermined thickness of the substrate is etched from the first surface to make the distance from the top surface of the shielding dielectric layer to the first surface a second depth. The first depth is greater than the second depth. An inter-gate dielectric layer and a control gate structure are formed in the trench. The method of the application etches a predetermined thickness of the substrate while etching the shielding gate, thereby effectively reducing a high-density plasma filling aspect ratio, and further increasing a filling window and improving a filling effect.

The invention relates to the technical field of tunnel structure repairing, and particularly discloses a weak water-rich stratum tunnel structure repairing pretreatment device which comprises a base pipe, one end of the base pipe is in threaded connection with an end disc, one side of the end disc is rotationally connected with a center pipe, one end of the center pipe is detachably connected with a fixing pipe, and one end of the fixing pipe is hinged to a plurality of swing arms through spring hinges. One end of each swing arm is provided with a tool bit, and the multiple swing arms are jointly and fixedly connected with a flexible shielding piece. The weak water-rich stratum tunnel structure repairing pretreatment device has the advantages that a temporary partition plate is formed in a cavity, water can be temporarily blocked through the partition plate, the width of the partition plate is very small, irregular deep cracks cannot be blocked, slurry can easily enter the irregular deep cracks, and the slurry is prevented from entering the cavity. Compared with the prior art, the filling effect is remarkably improved, and filling repair is safe and reliable.

The present application discloses a high-strength plastic pallet and a preparation method, wherein the high-strength plastic pallet comprises the following raw materials by weight: 70-95 parts of high-density polypropylene, 5-10 parts of epoxidized soybean oil, 1-3 parts of polytetrafluoroethylene, 4-8 parts of hydroxypropyl methylcellulose, 2-5 parts of silane coupling agent, 20-30 parts of filler, 14-20 parts of styrene-butadiene rubber, 10-15 parts of polyaromatic oxadiazole fiber, 5-10 parts of calcium carbonate whisker, and 1-2 parts of antioxidant. The high-strength plastic pallet provided by the present application has strong tensile strength and high temperature resistance.

The present invention discloses a spiral tube bending device, which relates to the field of pipe processing equipment. It includes a frame and a spiral barrel, a spiral groove is provided on the outer side of the spiral barrel, and the frame is provided with a driving member for driving the spiral barrel to rotate, and also includes: a support barrel parallel to the spiral barrel, and the support barrel is provided with a guide groove corresponding to the spiral groove along the circumferential direction; a storage barrel, which is located above the frame, and a rigid filling material is placed in the storage barrel, and a discharge pipe is connected to the lower end of the storage barrel, and a discharge head is connected to the lower end of the discharge pipe; a plurality of support members, which are all located below the storage barrel and arranged in the direction from the storage barrel to the spiral barrel, and the support members are used to support the raw material of the spiral tube, and the guide members are located between the support members and the spiral barrel, and are used to push the raw material of the spiral tube from the support members to the spiral barrel; a plugging member is used to plug the port of the raw material of the spiral barrel. The present application has the effect of reducing the probability of wrinkles in the spiral tube during processing and improving product quality.