158results about How to "Reduce viscosity" patented technology

The utility model relates to the technical field of UV (ultraviolet) three-proofing glue production, in particular to a raw material pretreatment device convenient to clean for UV three-proofing glue production, which comprises a machine body, a rotating rod is vertically and rotatably mounted in the machine body, and a plurality of hollow stirring rods are fixedly mounted on the surface of the rotating rod. U-shaped scraping plates are fixedly connected to the multiple stirring rods located on the same side of the rotating rod in a sleeving mode, and a liquid storage tank is fixedly installed on the upper surface of the machine body. After multiple raw materials are stirred and mixed uniformly, the raw materials are taken out, a cleaning agent can be poured into the liquid storage tank, then the rotating rod is controlled by the driving assembly to drive the multiple stirring rods to rotate, and in the process, the surfaces of the multiple scraping plates are in sliding contact with the inner wall of the machine body, so that the raw materials attached to the inner wall of the machine body can be scraped off; and meanwhile, the cleaning agent can be intermittently sprayed out from the ends, away from the rotating rod, of the multiple stirring rods and acts on the inner wall of the machine body, the viscosity of the raw materials can be effectively reduced, and the cleaning effect on the inner wall of the machine body is improved.

The present application provides a preparation method of an acid liquid system, comprising the following steps: adding 20-50 parts by mass of emulsified gelling acid into 50-80 parts by mass of gelling acid to obtain the acid liquid system; preferably adding 25-45 parts by mass of emulsified gelling acid into 55-75 parts by mass of gelling acid to obtain the acid liquid system.

This invention provides an arc-based additive and subtractive manufacturing method based on interlayer morphology reconstruction, belonging to the technical field of metal additive manufacturing. The method includes depositing an Nth layer of metal material on a substrate to form a deposition layer with a natural wavy morphology; acquiring actual morphology data to identify peak and valley distribution characteristics and planning a subtractive manufacturing path; selectively turning the deposition surface to obtain an anti-wavy substrate; detecting the surface temperature field of the anti-wavy substrate and cooling or preheating the substrate; and repeatedly performing arc-based additive deposition of the N+1th layer on the temperature-controlled anti-wavy substrate to complete the additive manufacturing process. This invention solves the technical problem in existing technologies where the wavy morphology between layers is not addressed, resulting in subsequent deposition layers covering and permanently remaining inside the workpiece, leading to a reduced yield. It achieves the technical effect of suppressing interlayer defects, reducing porosity by 90%, and improving internal quality.

The embodiment of the invention provides a mounting device for mounting an auxiliary tool on an aerostat and the aerostat. In one specific implementation mode, the mounting device comprises a tool base plate used for mounting an auxiliary tool, a heating assembly and a heat release adhesive layer arranged on the side, away from a mounting position of the auxiliary tool, of the tool base plate. The heating assembly is used for heating the heat release glue layer so that the installation device can fall off from the skin of the aerostat. According to the embodiment, the viscosity of the heat release adhesive layer is reduced through the heating assembly, so that the tool base plate can fall off from the skin of the aerostat without damage, and repeated use is facilitated. The method is simple to operate, facilitates safety of field or high-altitude operation, has no residue after stripping, and avoids garbage in the air. The gluing structure does not need to be perforated, the skin is kept complete, stress is uniform, the reliability of the aerostat is improved, and the service life of the aerostat is prolonged.

The application provides a method for post-processing of a photosensitive resin component, and belongs to the technical field of photosensitive resin, and comprises the following steps: immersing the photosensitive resin component into a solution to obtain an intermediate; and sequentially performing atomization treatment and solidification on the intermediate to complete the post-processing. The photosensitive resin component is placed in an atomized environment for photocuring, the surface properties of the component are improved, the adhesion of the model surface is reduced to a certain extent, the surface color of the original component is changed, the surface smoothness is increased, the surface quality of the component after solidification is improved, the surface protection effect of the component is achieved, and the service life of the photosensitive resin component is prolonged.

The invention provides preparation and application of black cymbidium hookerianum vesicles and PDRN loaded on the black cymbidium hookerianum, the black cymbidium hookerianum vesicles are extracted from the black cymbidium hookerianum by taking the black cymbidium hookerianum as a source and combining an optimized differential-ultracentrifugation extraction process, and the black cymbidium hookerianum vesicles can be used for loading multiple active ingredients and can be used for preparing the PDRN loaded on the black cymbidium hookerianum vesicles. Particularly, the black cymbidium hookerianum vesicles are subjected to surface cation modification so as to be used for loading PDRN, and the black cymbidium hookerianum vesicles can be applied to the directions of cosmetics with functions of functionalization, formula compounding, oxidation resistance, aging resistance and the like.

The application relates to the technical field of ion thermal electric conversion, and discloses an ion thermal electric device with continuous power generation characteristics and a preparation method thereof, which comprises the following steps: taking a polymer matrix and an ionic liquid according to a mass ratio, dissolving the polymer matrix and the ionic liquid in an organic solvent, heating and stirring until the polymer matrix and the ionic liquid are dissolved, and forming a clear solution; taking iron chloride and ferrous chloride according to a molar ratio, dissolving the iron chloride and the ferrous chloride in deionized water to prepare a redox inorganic salt solution; adding the redox inorganic salt solution into the clear solution, and stirring and mixing the solution under temperature control; pouring the mixed solution into a mold, vacuum drying the mixed solution into a film, and adhering the film to an electrode after cutting. The ion thermal electric device prepared based on the method transfers electric charges by relying on Faraday redox reactions of iron ions and ferrous ions at an electrode interface during work. The application breaks the polarization and flow interruption limitation of a traditional double electric layer capacitor mechanism, realizes long-term and stable continuous chemical power generation of the device, and meets the sustainable power supply demand of microelectronic sensing equipment and the like.

The application discloses a kind of nano-permeable resin coating for construction in high-humidity water environment of desulfurization chimney lining anticorrosion, chimney lining includes reducing agent layer, reinforcing agent layer, primer layer, topcoat layer in turn from inside to outside, nano-permeable resin primer and topcoat can be permeated into the concrete matrix to form the anticorrosion layer of "matrix-coating", "mixing element integration", so that it not only has excellent acid corrosion resistance, but also has high and low temperature alternation and airflow scouring performance, solve the problem that chimney lining anticorrosion layer fails due to stress corrosion, also has good construction performance, solve the difficult problem that chimney lining anticorrosion layer construction period is short.

The utility model provides a medical intermediate mixing cylinder which comprises a main mixing cylinder, and the top of the main mixing cylinder is fixedly connected with a top fixing cover; the medical intermediate raw materials in the main mixing cylinder can be stirred through the rotating main stirring frame, the mixing efficiency of medical intermediates in the main mixing cylinder is improved, and the temperature of the bottom connecting rod is continuously increased, so that the medical intermediates in the main mixing cylinder are uniformly mixed in the process that the bottom connecting rod and the main stirring frame rotate and stir along the inner side of the main mixing cylinder. The temperature of the raw materials in the main mixing cylinder is continuously increased, the viscosity of the materials is reduced, the fluidity is improved, and the stirring effect is improved; the rotating side stirring frame can stir along the inner side of the side mixing barrel, various different raw materials are premixed, the premixed raw materials can enter the inner side of the main mixing barrel along the bottom liquid outlet pipe to be mixed with the main raw materials, and the mixing effect is improved in a multi-point feeding mixing mode.

The application relates to the technical field of metallurgical process control, in particular to a method for predicting the viscosity of smelting slag of oxidized-copper sulfide concentrate and application thereof. Based on the mass of specific raw material components in the slag of the to-be-detected oxidized-copper sulfide concentrate after oxygen-enriched top-blown smelting, the reference viscosity value of the slag is calculated by combining the pre-set smelting temperature, the pre-factor and the viscous activation energy; then the volume fraction of Fe3O4 obtained after oxidation is calculated according to the mass of the specific raw material components of iron; the predicted viscosity value of the slag is calculated by substituting the volume fraction of Fe3O4 and the reference viscosity value into an expression, which provides a basis for subsequent regulation and control of the smelting process based on the predicted viscosity value; and the problem of how to predict the viscosity of the slag of the oxidized-copper sulfide concentrate to optimize the smelting process is solved.

The present application relates to a kind of emulsion type capsule slow-release oil sand dissociation agent and its preparation method and application, belong to oil sand pitch technical field.Dissociation agent is by the water phase flocculating agent solution of volume ratio (10~30) and the oil phase containing emulsifier mixed and formed water-in-oil emulsion;Water phase flocculating agent solution includes the flocculating agent of concentration 10~100 mg / L, and the oil phase containing emulsifier includes the emulsifier of volume concentration 1~4%.By oil outer phase, the viscosity of pitch and oil-water interfacial tension are reduced, the calcium and magnesium ion concentration in system can be reduced after slow release of flocculating agent solution, and then the adhesion between pitch and silicon surface is weakened, on the basis of reducing the dosage of flocculating agent, further improve the dissociation efficiency of pitch on sand surface.It can not change the pH of system, prevent the disadvantage that the hydrophobicity of pitch is reduced and the difficulty of pitch droplet coagulation is increased by hot lye.

This disclosure relates to the field of titanium extraction technology from blast furnace slag, and particularly to a method for controlling the titanium carbide content using iron oxide powder, comprising the following steps: Step 1, when the slag generated by the carbon-blending of titanium-containing blast furnace slag reaches the smelting endpoint, a sample is taken to detect the mass percentage of titanium carbide in the slag; Step 2, when the mass percentage exceeds a set threshold, iron oxide powder is added to the slag to control the mass percentage within a reference range. This disclosure solves the problem of easy bending of titanium slabs with large aspect ratios during the upsetting process. This disclosure also solves the problem of high TiC content in existing titanium-containing blast furnace slag carbon-blending processes. By adding iron oxide powder to react with excess TiC in a directional manner, the TiC content can be stably controlled within a reference range, effectively reducing slag viscosity, ensuring smooth slag discharge, and avoiding safety hazards such as equipment blockage; at the same time, it improves the temperature control effect of the subsequent boiling chlorination reaction, and improves the efficiency and quality of subsequent titanium resource recovery.

Provided are an additive for a thermal management fluid comprising a phosphate-based compound as an additive for a thermal management fluid, and a thermal management fluid composition comprising the same. Use of the additive may improve the stability of the thermal management fluid.

The invention belongs to the technical field of environmental engineering and chemical separation, and particularly relates to a deep-eutectic solvent composition for efficiently extracting phenolic compounds and a preparation method of the deep-eutectic solvent composition. The deep-eutectic solvent composition for efficiently extracting the phenolic compounds, provided by the invention, consists of a hydrogen bond acceptor and a hydrogen bond donor in a molar ratio of (1-2): (1-9), the hydrogen bond donor comprises n-caprylic acid or n-hexyl alcohol; the hydrogen bond receptor comprises 1-ethyl-3-methylimidazole chloride or tetrabutylammonium bromide. The eutectic solvent composition has the advantages of high partition coefficient, low viscosity, high selectivity, rapid phase separation, environmental friendliness and the like, can efficiently extract phenol, resorcinol, o-cresol, m-cresol and p-cresol, and has single-stage extraction efficiency gt; the regeneration rate is high, and the method is suitable for high-concentration phenolic wastewater, polyhydroxy phenolic wastewater, continuous process and low-toxicity emission requirement scenes.

This invention belongs to the field of mining engineering and geotechnical reinforcement technology, and discloses a coal and rock mass fracture grouting material suitable for long-distance transportation and its preparation method. The cement:fly ash:water ratio provided by this invention is 2:8:10. Experimental verification shows that it meets the performance requirements of grouting materials, with a grouting strength >1MPa meeting engineering requirements, and an initial setting time of 27h10min meeting the requirements for long-distance transportation. Furthermore, in terms of engineering cost, it utilizes waste fly ash from power plants to replace 80% of the cement, significantly reducing the cost of grouting materials and solving the environmental pollution problem caused by fly ash stockpiling. This invention can be considered the preferred mix ratio for grouting and roof reinforcement projects in coal mines directly overlying caving zones.

The invention provides an anti-sticking asphalt cold patch material with a core-shell structure and a preparation method thereof.The anti-sticking asphalt cold patch material with the core-shell structure sequentially comprises an inner core, a bonding layer and an anti-sticking layer from inside to outside, the bonding layer comprises resin and asphalt, and the anti-sticking layer comprises a fatty acid compound; the fatty acid compound is at least one of long-chain unsaturated fatty acid, long-chain saturated fatty acid or ester derivatives thereof; the fatty acid compound comprises a non-polar long chain with the alkyl chain length of C12-C18 and a polar group, and the polar group comprises any one of an ester group and a carboxyl group. The anti-sticking asphalt cold patch material with the core-shell structure does not need compaction equipment and heating equipment during construction, an anti-sticking layer formed by the fatty acid compound can be destroyed only by means of a driving load, so that a cementing material in the bonding layer flows again and is bonded with each other, and meanwhile, stable structural strength is formed by virtue of an embedding and extruding effect among aggregates.

The utility model provides a traditional Chinese medicine pill making device which comprises a box body, a feed opening, a pressing chamber and a pill making assembly, the pressing chamber is arranged in the box body and comprises a transverse pressing chamber and a longitudinal pressing chamber, the longitudinal pressing chamber is communicated with the transverse pressing chamber, and the pill making assembly is arranged in the box body. The discharging opening communicates with the end, away from the longitudinal pressing chamber, of the transverse pressing chamber. A transverse spiral feeding shaft is arranged in the transverse pressing chamber, and a longitudinal spiral feeding shaft is arranged in the longitudinal pressing chamber; the pelleting assembly comprises an extrusion head, a heat dissipation pipe and a cutting head. The cooling pipe is arranged between the extrusion head and the cutting head, medicine mud enters the cooling pipe in a long-strip shape through the extrusion head and then reaches the cutting head to be cut into pills, the cooling pipe can cool the long-strip-shaped medicine mud, the viscidity of the medicine mud is reduced, follow-up cutting is facilitated, pill shaping is accelerated, the surface hardness of pills is improved, and the pills are prevented from adhering to the collecting hopper. The collection is convenient.

This invention relates to a dispersant, its preparation method, and its application. The dispersant provided by this invention is based on acetylacetonate diol, which undergoes hydrogenation, ethoxylation, polyesterification, and phosphorylation to form an innovative twin-type dispersant. By adjusting the length of the polyether and polyester in the dispersant, this invention can effectively improve the compatibility between various components in coatings or battery slurries, thereby reducing viscosity and improving slurry stability. Specifically, for battery slurries, the dispersant prepared by this invention can prevent the agglomeration of positive and negative electrode active materials and conductive agents in the slurry through steric hindrance, thus improving the fluidity of the battery slurry, improving the slurry gelation, and enhancing viscosity stability. Therefore, it can achieve a lower viscosity at a higher solids content.

The application belongs to the technical field of bamboo processing, and particularly relates to a preparation method of improved reconstituted bamboo, wherein the defibrated bamboo bundle is stepwise impregnated by preparing etherified melamine formaldehyde resin and modified phenolic resin. First, the bamboo bundle is impregnated by the etherified melamine formaldehyde resin with small molecular size, low viscosity and good water solubility, so that the etherified melamine formaldehyde resin can deeply enter the cell wall and the inner part of the micropore of the bamboo, fully fill the pores and block the hydrophilic channels, and meanwhile, the mildewproof agent is uniformly delivered to the inner part of the bamboo. Further, the bamboo bundle is impregnated by the phenolic resin with large molecular size and modified by flexible sugar ring units, so that the phenolic resin can be enriched on the surface of the bamboo bundle and the bonding interface, a flexible bonding layer is formed, the flexible molecular chain can buffer the residual stress of the interface, the bonding layer flexibility and the bonding strength of the bamboo bundle are improved, and the structural stability of the reconstituted bamboo during long-term use is further ensured.

The invention discloses a low-temperature curing high-resolution polyimide photoresist and a patterning method and application thereof, and belongs to the technical field of photoresist, and the patterning method comprises the following steps: (1) under the protection of inert gas, adding an aromatic dianhydride monomer into a diamine monomer solution, and stirring for reaction to obtain a polyamide acid solution; the diamine monomer comprises a diamine monomer with high reaction activity and a diamine monomer with low reaction activity; and (2) adding a photosensitizer and a chemical imidization catalyst into the polyamide acid solution, uniformly mixing, coating a base material with the mixture, removing the solvent, and performing ultraviolet curing development and gradient heating heat treatment to complete an imidization reaction, so that the photoresist is cured, and the high-resolution polyimide pattern is obtained. Through molecular design and process innovation, the photoresist provided by the invention has the advantages of low-temperature curing, high resolution, excellent thermal stability and low dielectric property, the polyimide photoresist can be prepared through low-temperature curing, and meanwhile, the requirements of flexible electronics and high-density packaging are met.

The utility model discloses a hydro-pneumatic spring with a heat dissipation function, and belongs to the technical field of hydro-pneumatic springs. The device comprises a hydro-pneumatic spring body, a floating piston, a one-way check valve, a cooler and a pipeline system. The floating piston achieves oil-gas isolation, the main piston divides an inner cavity of the cylinder body into a center cavity and an annular cavity, and the center cavity and the annular cavity are communicated through a piston rod damping oil channel and an external pipeline. The core innovation is that in the active cooling circulation, in the compression stroke, hot oil in a central cavity is pressed out, is forcibly guided into an external cooler through a one-way check valve to be cooled, and then is injected into an annular cavity; and in the stretching stroke, the oil flows back to the central cavity through the damping hole. By means of the structure, a double heat dissipation mechanism combining cylinder barrel convection radiation heat dissipation and oil liquid replacement convection heat dissipation is formed, the limitation that a traditional hydro-pneumatic spring only relies on a cylinder body for heat dissipation is broken through, the temperature of oil liquid and gas can be actively and efficiently controlled, temperature rise is remarkably restrained, and sealing reliability and system work stability are guaranteed.

The application relates to the technical field of land planning and design and evaluation, and discloses a land space low-efficiency land digital planning method based on an improved comprehensive evaluation, which comprises the following steps: extracting features of time sequence data of crowd flow based on land information of land use, and generating land space utilization rate evaluation indexes; adopting a time-space clustering mode for clustering, generating clustering density information and converting the clustering density information into a space low-efficiency land index; marking land low-efficiency land, and setting adjustable design parameters of the land low-efficiency land; and optimizing the adjustable design parameters of the land low-efficiency land by using an improved particle swarm algorithm, so as to obtain an optimal design scheme of the land low-efficiency land. The space low-efficiency land index is generated based on the evaluation indexes and clustering information, the land low-efficiency land is marked, and the adjustable design parameters are set; through construction of a fitness function and combination of the improved particle swarm algorithm, the optimal design scheme is generated, and efficient utilization and intelligent planning of the land low-efficiency land are realized.

This utility model discloses a cleaning structure for a rotary valve for conveying highly viscous materials, relating to the field of rotary valve technology. Its key technical features include a rotary valve body; a feeding rotary mechanism, which is screwed onto the left side of the rotary valve body and electrically connected to a control box via a connecting wire; a pushing cleaning mechanism, movably mounted on the lower inner side of the rotary valve body; and a cold air drying mechanism, fixedly connected to the upper inner side of the rotary valve body and connected to an industrial air conditioner. By combining the cold air drying mechanism and the pushing cleaning mechanism, automatic cleaning of highly viscous materials is achieved. Cold air from the industrial air conditioner is ejected through the perforated panel of the cold air drying mechanism, causing the adhered highly viscous material to freeze and harden. The movable scraper of the pushing cleaning mechanism corresponds to the shape of the smooth inner wall of the feeding chamber, accurately scraping away the hardened material without manual cleaning, thus improving cleaning efficiency.

The present application belongs to the technical field of preparation of multi-curved surface silicon carbide, and discloses a preparation method of reaction sintering multi-curved surface silicon carbide whole plate, comprising: mixing 100 parts of alpha-SiC powder, 15-20 parts of composite carbon source, 1-2 parts of silicon carbide fiber, 2.3-3.8 parts of dispersing agent, 8-12 parts of water-soluble phenolic resin, 2-4 parts of additive and 42-46 parts of water according to weight parts, pre-dispersing, ball-milling, spray granulating, pressing into multi-curved surface green body; the green body is stacked with graphite support parts and filled with graded silicon particles, and is subjected to step-by-step degreasing and step-by-step reaction sintering under vacuum argon, and then is cooled after temperature control to obtain the product. Through the synergistic effect of formula control of composite carbon source, specific ternary additive and fine sintering process, the technical problem of sintering cracking and cracking of multi-curved surface whole plate is eliminated, and the product density, bending strength and fracture toughness are effectively improved.

The application discloses a kind of kitchen biogas liquid treatment devices, belong to sewage treatment technical field, it includes connecting plate, ring cylinder, fling filter mechanism, filter mechanism, protective cylinder, butt joint pipe, microwave heating pipe and storage tank, ring cylinder is located on connecting plate, fling filter mechanism rotates and is installed in ring cylinder, filter mechanism is inserted in fling filter mechanism and is communicated, protective cylinder is installed on ring cylinder, butt joint pipe is communicated protective cylinder and fling filter mechanism.The device is transported by centrifugal force generated by fling filter mechanism rotation, microwave heating pipe is heated to reduce viscosity and reduce colloid adsorption, filter mechanism retains impurities, and storage tank collects primary filtrate.The device solves the problem that existing device is easy to block, needs flocculating agent, and maintenance is difficult, realizes efficient filtration, convenient maintenance and low cost.

The present application relates to the technical field of road engineering pavement materials, in particular to a composite asphalt regenerant, a preparation method, a use method and an application thereof.The regenerant comprises, by mass percentage, 30-70% of aromatic component oil, 15-50% of hydrogenated base oil, 5-10% of a curing accelerator, 3-10% of a low-temperature stabilizer, 0.5-3.0% of an antioxidant, 0.5-5.0% of a diluent and 1-5% of an ammonium ion stabilizer.The present application significantly reduces the viscosity of the regenerant through multi-component synergy, realizes normal-temperature construction in all seasons, effectively restores the penetration and softening point of aged asphalt, delays secondary aging through the synergy of the antioxidant and the ammonium ion stabilizer, and simultaneously enhances the low-temperature crack resistance and initial strength of the recycled mixture, and is suitable for plant-mixed hot recycling, in-place hot recycling and cold recycling processes.

The utility model discloses a kind of efficient dryers for sodium diacetate production of continuous feeding and discharging, including screw conveyor, the feeding hopper connected with the feeding end of screw conveyor, the drying box connected with the discharging end of screw conveyor, ultrasonic transducer and nitrogen injection port are equipped on feeding hopper, receiving plate is equipped in drying box, cross rotary scraper is equipped above receiving plate, scraping tooth is equipped in cross rotary scraper bottom, drying box both sides are equipped with hot air inlet and outlet duct;Receiving plate is embedded and installed in drying box, receiving plate is connected between the bottom of drying box by spring, vibration motor is equipped in receiving plate bottom, pressing cylinder for pressing one end of receiving plate is equipped on drying box, discharging port for discharging material is equipped on drying box on one side of receiving plate pressing end. The utility model can realize continuous production, improve productivity, also has the advantages such as anti-blocking, ensure cloth uniformity, finally realize the efficient drying of material.

The invention belongs to the technical field of chemical engineering separation, and provides a natural eutectic solvent and a preparation method and application thereof, the natural eutectic solvent comprises the following components: caprolactam, citric acid and water; wherein the molar ratio of caprolactam to citric acid is (1-4): (1-2); the mass of the water is 20-40% of the sum of the mass of the caprolactam and the mass of the citric acid. By introducing water as a third component, the viscosity of the system is effectively reduced, the mass transfer performance is improved, and the denitrification efficiency is improved. The eutecticevaporate solvent provided by the invention can provide more reaction sites, has relatively strong removal capacity and selectivity on nitrogenous organic matters, and can realize efficient denitrification under mild conditions. The natural deep-eutectic solvent prepared by the preparation method disclosed by the invention is applied to removal of basic nitrides of oil products, and has the advantages of short time consumption and low dosage, namely high removal efficiency.

This invention discloses an anti-tangling cotton yarn processing jet dyeing machine. A guide wheel is fixedly connected to the inner wall of a fixed frame. A jetting device is fixedly connected to the inner wall of the fixed frame on one side of the guide wheel. The jetting device includes a feeding pipe. A heating ring is sleeved and fixedly connected to the side of the feeding pipe. The bottom of the heating ring is connected to the outlet of an electric water pump. A rotating pipe is rotatably connected to the side of the feeding pipe. A winding wheel is fixedly connected to the side of the rotating pipe. A drive shaft of a first motor is fixedly connected to the end of the rotating pipe away from the feeding pipe. The fixed end of the first motor is fixedly connected to the side of the fixed frame. The inlet of the electric water pump is connected to the side of a collection tank. The feeding pipe passes through the side of the fixed frame and is fixedly connected to the side of the fixed frame. The fixed frame provides overall support for the equipment. Cotton yarn is guided along the guide wheel after being introduced.

This invention provides a castable ablation-resistant coating material and its preparation method. The material is composed of unsaturated polyester resin, cobalt naphthenate, cyclohexanone peroxide, trichloroethyl phosphate, boron phenolic resin, silicon carbide, and hexa(4-aldehyde phenoxy)cyclotriphosphazene. Through optimized compounding design of the coating material, this invention achieves a castable ablation-resistant coating material with an ablation rate as low as 0.11 mm / s and a viscosity as low as 5900 mPa·s. This material possesses both excellent ablation resistance and casting process performance, and has broad application prospects in the casting and coating of solid rocket motor propellants.