88results about How to "Simple process conditions" patented technology

The invention provides a medical packaging material and a preparation method thereof.The preparation method comprises the steps that S100, polypropylene, maleic anhydride grafted co-polypropylene, peroxide and filler are mixed, then melt extrusion and two-way stretching are conducted, and a printing layer is obtained; s200, respectively preparing a barrier layer and a heat sealing layer; and S300, the heat sealing layer, the blocking layer and the printing layer are sequentially stacked from inside to outside, and the packaging material is obtained. Through the preparation method of the packaging material, the prepared packaging material has excellent barrier property and antibacterial property while resisting high temperature, and can meet the requirements of the medical field.

The invention discloses an emulsifying device for salicylic acid preparation, which belongs to the technical field of salicylic acid preparation and processing, and has the technical key points that the emulsifying device comprises an emulsifying box, and an annular rotary stirring mechanism can be correspondingly driven to adjust the stirring mode and perform rotary stirring operation through an arranged stirring liquid conveying control mechanism; by combining two stirring modes of rotation and revolution, salicylic acid and an emulsifier can be mixed and stirred more comprehensively from multiple angles, the uniformity of the emulsion is greatly improved by the stirring mode, and in addition, the stirring speed is greatly improved by randomly adjusting the stirring position. According to the emulsifying machine, the same equipment can meet various different emulsifying processing requirements, so that the investment cost of the equipment is reduced, the liquid conveying mechanism can be correspondingly driven to perform liquid adding operation through the arranged stirring liquid conveying control mechanism, the manual operation is remarkably reduced, the production cost is reduced, and the production efficiency is improved; the stirring device has the advantages of convenience in stirring adjustment, diversified stirring modes and convenience in automatic liquid adding.

The invention discloses a method for extracting macadamia nut green peel polyphenol by screening a deep eutectic solvent (DES) based on molecular simulation, and belongs to the field of molecular simulation and natural product extraction. The method comprises the following steps: firstly, quantitatively analyzing the composition of the macadamia nut green peel polyphenol, then based on the composition of the green peel polyphenol, researching the dissolving-out capacity of DES composed of different hydrogen bond donors / hydrogen bond receptors on the main polyphenol of the macadamia nut by adopting molecular simulation, screening DES with different hydrogen bond donor / hydrogen bond receptor compositions and molar ratios, and determining the content of the main polyphenol in the macadamia nut. Finally, the screened DES system is subjected to process optimization, and the optimal DES proportion is obtained. The DES system can be rapidly screened on the basis of the main composition of macadamia nut green peel polyphenol, the polyphenol yield is increased, and the problems of large use amount of an organic solvent and low extraction efficiency in traditional polyphenol extraction are solved.

The invention discloses a self-supporting Co / CoO / Co3O4 catalytic electrode rich in oxygen vacancy as well as preparation and application of the self-supporting Co / CoO / Co3O4 catalytic electrode. The preparation method of the catalytic electrode comprises the following steps: step 1, dissolving Co (NO3) 3.6 H2O and dimethylimidazole in ethanol, uniformly mixing, adding a foamy copper substrate, putting into a drying oven, carrying out solvothermal reaction to generate a Co-ZIF precursor, and drying after the reaction is finished to obtain foamy copper containing the Co-ZIF precursor; and 2, putting the foamy copper containing the Co-ZIF precursor into a tubular furnace, introducing hydrogen-argon mixed gas, and carrying out reduction calcination at 300-500 DEG C to obtain the catalytic electrode. The invention provides application of the catalytic electrode as a cathode in a reaction of synthesizing ammonia through nitrate electroreduction. The process conditions are simple, the prepared catalytic electrode can effectively promote the electroreduction process of nitrate radicals, and high ammonia yield and high Faraday efficiency are achieved.

The invention relates to the technical field of wastewater treatment, in particular to a preparation method and application of iron modified montmorillonite. The preparation method comprises the following steps: adding montmorillonite into water, carrying out ultrasonic treatment, and then centrifuging to obtain supernate; centrifuging the supernate, and freeze-drying the obtained precipitate to obtain pretreated montmorillonite; dispersing the pretreated montmorillonite in water, adjusting the pH value of the solution to be acidic, and stirring; then adding ferric iron salt, stirring and centrifuging; dispersing precipitates obtained by centrifugation into a ferric iron salt solution, stirring and centrifuging; repeating the steps of dispersing the precipitate obtained by centrifugation into the ferric iron salt solution, stirring and centrifuging; and washing the precipitate obtained by the last centrifugation, and then freeze-drying to obtain the iron modified montmorillonite. The iron-modified montmorillonite can effectively degrade the triazine herbicide simazine, is simple to prepare, wide in raw material source and low in price, and has important significance in removal of refractory pollutant triazine herbicides.

The invention belongs to the technical field of medicines, and particularly relates to a uremia clearing capsule and a preparation method thereof. The uremia clearing dry paste powder comprises the following raw materials in parts by weight: 60-80 parts of uremia clearing dry paste powder, 20-40 parts of a filling agent and 0.005-0.02 part of a lubricating agent, the filling agent comprises corn starch, pregelatinized starch and mannitol. The preparation method of the capsule comprises the following steps: mixing the uremia clearing dry paste powder, the filling agent and part of the lubricating agent, performing dry granulation, mixing granules and the remaining lubricating agent, and filling to prepare the capsule. By selecting the filling agent, the hygroscopicity of the content can be effectively reduced, and the stability of the capsule is improved; moreover, the dry paste powder can be successfully tableted and granulated by adopting a dry granulation process, a roller is not adhered, the granule forming rate is high, and a complex wet granulation process is avoided. And the process conditions of the dry paste powder are optimized, and the dry paste powder is prepared into capsules, so that the compliance of patients is improved.

The invention discloses a preparation method of a modified asphalt tire-free waterproof coiled material, which is characterized by comprising the following steps: taking the following raw materials in percentage by mass: 41-43% of asphalt, 9-12% of softening oil, 10-11% of tire rubber powder, 1-3% of SBS (Styrene Butadiene Styrene), 3-4% of SBR (Styrene Butadiene Styrene), 1-2% of basalt fiber and 28-34% of filler, mixing and stirring the asphalt and the softening oil, heating to 190-195 DEG C, adding the tire rubber powder, heating to 190-195 DEG C, and stirring for 20-30 minutes, thereby obtaining the modified asphalt tire-free waterproof coiled material. Cooling to 185-190 DEG C, adding SBS and SBR, adding basalt fiber, carrying out heat preservation and stirring, adding a filler, and stirring and mixing to obtain an asphalt composition; and coating one surface of the film with the asphalt composition, and then covering a layer of film, thereby obtaining the modified asphalt tire-free waterproof coiled material. The prepared modified asphalt tire-free waterproof coiled material is good in performance and suitable for buildings to resist external rainwater erosion, prevent underground water leakage and the like.

The invention relates to a strontium titanate / boron nitride nanotube composite ceramic core block and a preparation method and application thereof, the composite ceramic core block is prepared from strontium titanate and boron nitride nanotubes, and the mass percent of the boron nitride nanotubes in the strontium titanate / boron nitride nanotube composite ceramic core block is 0.1-3%. The preparation method comprises the following steps: slowly adding obtained surface modified boron nitride nanotube slurry into strontium titanate slurry to obtain strontium titanate / boron nitride nanotube slurry; heating and stirring the strontium titanate / boron nitride nanotube slurry to obtain strontium titanate / boron nitride nanotube composite powder; the strontium titanate / boron nitride nanotube composite powder is subjected to pellet blank compression molding and sintering, and the strontium titanate / boron nitride nanotube composite ceramic pellet is obtained. Compared with the prior art, the heat conduction and mechanical properties of the 90SrTiO3 ceramic core block can be effectively improved.

According to the high-entropy lithium manganese iron phosphate positive electrode material and the preparation method and application thereof, manganese, iron and other transition metal elements are skillfully and uniformly mixed by accurately controlling the proportion of metal elements and performing grinding for three times and stirring for one time; on the basis, a low-temperature carbonization and high-temperature calcination double-stage sintering strategy is utilized to prepare the high-entropy lithium manganese iron phosphate positive electrode material, the material has relatively high mixed entropy, a stable single-phase solid solution structure is formed, the ginger-Taylor effect of a manganese element is effectively inhibited, the capacity retention rate in 150 cycles is as high as 98%, and excellent cycle stability is shown. The method is simple in process condition, easy in process control and easy to realize large-scale industrial production; under the reduction action of the carbon source, a cheap ferric iron source can be used for replacing a ferrous iron source, so that the production cost is reduced; and the solution can be recycled, is green and environment-friendly, and has great economic benefits.

The invention relates to the technical field of pesticide preparations, and provides a pyriproxyfen-containing nano-emulsion and a preparation method thereof, and the pyriproxyfen-containing nano-emulsion comprises pyriproxyfen, an emulsifier, a thickener, water and an organic solvent. According to the pyriproxyfen-containing nano-emulsion provided by the invention, the nonionic emulsifier with a relatively high HLB (Hydrophile-Lipophile Balance) value and the lipophilic emulsifier with a relatively low HLB value are compounded, so that a mixed adsorption layer can be formed on an oil-water interface, the interfacial tension is effectively reduced, and an oil phase and a water phase are more easily mixed to form the stable nano-emulsion; the strength of an interfacial film of emulsion drops in the nano-emulsion can be improved, so that the external factor resistance of the nano-emulsion is improved, the phenomena of layering, demulsification and the like of the nano-emulsion in the storage process are not easy to occur, and the long-term stability of the emulsion is improved; besides, release and absorption of pyriproxyfen in the nano-emulsion can be optimized, so that the nano-emulsion shows a relatively high diffusion rate, and a relatively good insecticidal effect is more easily exerted.

The invention discloses hydrogel wound application and a preparation method thereof, and relates to the technical field of wound application. The formula of the hydrogel wound application is adjusted, so that the hydrogel wound application can be prepared at normal temperature, redundant containers are not needed, and meanwhile, the hydrophilic alginate fibers are added, so that the toughness of gel is improved, and the phenomena of breakage, fracture and lacking of gel caused by insufficient strength of the gel are reduced.

The invention provides an antibacterial flame-retardant bamboo-wood composite shaving board and a preparation method thereof. According to the bamboo-wood composite shaving board manufactured through the method, the mechanical property can be kept, and meanwhile the good flame retardant effect is achieved. The composite flame retardant disclosed by the invention is simple in preparation method, cheap and easily available in raw materials, capable of saving cost and relatively high in industrial production value. The bamboo-wood composite shaving board does not need a layered preparation process, is simple in overall process condition, and is environment-friendly and safe.

The invention provides a high-elasticity waterproof skin-touch tablecloth based on a flexible polymer and a preparation method thereof. The tablecloth is made of a polyurethane composition, comprises a modified polyurethane material, amino siloxane, graphene, a light stabilizer, a flexible plasticizer and the like, and has excellent elasticity, waterproofness, antistatic property and soft touch feeling. The preparation method comprises the following steps: firstly, mixing the modified polyurethane material with amino siloxane, then adding graphene and other additives, and molding under a calendering process. Through the design, the touch feeling, durability and environmental protection performance of the tablecloth are improved, and the tablecloth is suitable for high-quality household products.

This invention discloses a method for extracting the intermediate ACH, belonging to the field of fine chemicals. The method involves passing a layered acid containing acesulfame potassium (DCM) and a dichloromethane solution into a rotary extraction tower for extraction. The temperature of the layered acid entering the tower is 30-31°C. The extraction pressure and the temperature of the dichloromethane entering the tower are controlled. The extracted dichloromethane layer enters a vibrating extraction tower for back-extraction with deionized water. The back-extracted DCM is neutralized, concentrated, crystallized, and dried to obtain the finished product, potassium acesulfame potassium. Using this method, the ACH content in the extracted acid is reduced to below 0.1%, and the ACH extraction yield reaches over 98%. Because the rotary extraction tower effectively reduces the acid carryover in the DCM, it lowers the back-extraction load, ensuring the product quality of potassium acesulfame potassium. Simultaneously, it simplifies the process conditions, reduces energy consumption, and saves production costs.

This invention provides an ultrafine intermediate molybdenum oxide material and its preparation method. The method involves placing ammonium molybdate in a reaction vessel and heating it in a vacuum environment at 400℃–600℃ for at least 3 hours to obtain the ultrafine intermediate molybdenum oxide material. The reaction vessel is a sealed structure except for the exhaust end, which is equipped with a one-way gas flow valve. The Fisher particle size of the ultrafine intermediate molybdenum oxide material is 0.8–1.0 micrometers. The method uses a reaction vessel equipped with a one-way gas flow valve, preventing external air from entering during the roasting process while simultaneously allowing the exhaust of gases generated during decomposition, thus ensuring the purity of the obtained molybdenum oxide material. The process conditions are simple and easy to control, making it suitable for industrial production. This material, with its small particle size and high purity, has broad application prospects.

The invention provides a preparation and interface modification method of a semiconductor composite device. A semiconductor superconducting composite device is also provided. The interface property is changed by controlling the etching time through a universal high-quality composite device micro-nano machining mode. The micro-nano processing comprises an electron beam exposure system, a plasma etching system and a coating system. The morphology shows that a clean device is manufactured, a transmission electron microscope image shows that a thin film material epitaxially grows on the surface of the semiconductor nanowire, a quantized conductive platform is observed through transport data, and a very high transmission coefficient is obtained through data fitting. These show a high quality device. In addition, the inventor observes that the carrier concentration is increased due to interface energy band bending caused by etching. The technological process is suitable for different types of devices, different materials can be deposited, and thin films with different thicknesses can be formed. The interfacial properties may also be altered by etching. And a solid foundation is provided for the manufacturing and research of a composite device in the future.

The invention relates to a high-dispersion organic-inorganic composite flexible thermoelectric material and a preparation method thereof. The preparation method of the high-dispersion organic-inorganic composite flexible thermoelectric material comprises the following steps: (1) adding a carbon nanotube into a conjugated polymer A solution for dispersion, centrifuging and collecting a supernatant, then cooling or evaporating and concentrating the supernatant to separate out a solid, and filtering to obtain a conjugated polymer B; washing to remove the outer-layer conjugated polymer A which is not combined with the carbon nano tube by virtue of an intermolecular force, so as to obtain the high-dispersion carbon nano tube of the conjugated polymer A coated with the molecular layer thickness; and (2) mixing the high-dispersion carbon nanotubes coated with the molecular layer thickness conjugated polymer A with a conductive polymer B solution to form a film preparation solution, carrying out film formation to obtain an organic-inorganic composite flexible thermoelectric film, and then soaking the organic-inorganic composite flexible thermoelectric film in a doping solution, the high-dispersion organic-inorganic composite flexible thermoelectric material is obtained.

The application belongs to the technical field of microcapsules, and particularly relates to a preparation method of a composite probiotic capsule, which comprises the following steps: uniformly mixing probiotic bacterial liquid, fructooligosaccharide, tea polyphenol, grape polyphenol, mannan oligosaccharide, isomaltitol and an emulsifier to obtain a core material; uniformly mixing glycerol and distilled water, heating to 60-80 DEG C, sequentially adding modified gelatin, hydroxypropyl starch and chitosan, stirring for 10-30 min, sterilizing, and cooling to room temperature to obtain a capsule material; mixing the core material and the capsule material, performing high-pressure homogenization treatment, and then performing spray drying to obtain the composite probiotic capsule; and the modified gelatin is prepared by acylation reaction of succinic acid derivatives and gelatin. The composite probiotic capsule provided by the application has excellent storage stability, antioxidant property, anti-gastric juice erosion capacity, and also has good enteric solubility and bioavailability.

The invention discloses a method for recovering a lithium resource in a waste lithium battery for lithium supplement of a negative electrode of the lithium battery, and belongs to the technical field of lithium battery recovery. An anode of a waste lithium battery is recycled, a circuit is externally connected to control the amount of electrodeposited lithium on an aluminum foil, a layer of aluminum-lithium alloy is formed on the surface of the aluminum foil, and the aluminum-lithium alloy is used as a modification layer on the surface of a cathode of the lithium ion battery, so that a lithium supplementing effect is provided for lithium loss caused by an SEI film formed on the cathode, and the aluminum-lithium alloy can also be used as a part of a cathode material; and high reversible capacity is provided. The recycling method is easy to operate, invalid waste of the positive electrode in the waste battery is avoided, compared with a common negative electrode lithium supplementing method, the pre-lithiation degree can be accurately controlled, the used aluminum foil is low in price, the production cost is reduced, operation is easy, and potential safety hazards are small.

This invention discloses a method for preparing trifluoropropionic acid, comprising the following steps: Step 1, reacting acetic acid with trifluoropropylene under the action of a catalyst to obtain trifluoropropyl acetate; Step 2, transesterifying trifluoropropyl acetate with methanol to obtain trifluoropropanol; Step 3, oxidizing trifluoropropanol with hydrogen peroxide under the action of a catalyst to obtain trifluoropropionic acid. This invention has a high yield, simple process conditions, and cheaper raw materials, which can significantly reduce the cost of trifluoropropionic acid.

The present invention relates to a Yb-Sc alloyed ultra-high strength Al-Mg-Zn-Ag alloy and a preparation method thereof. The alloy is composed of the following components in mass percentage: Mg 4.0-10.0%, Zn 2.0-6.0%, Ag 0.1-3.0%, Zr 0.05-0.2%, Mn 0.05-0.3%, Yb 0.01-0.2%, Sc 0.01-0.08%, Mg / Zn mass ratio 1.5-4.5, and the remainder is Al. The preparation method is: according to the designed aluminum alloy component ratio, each component is weighed, and an ingot is formed by smelting and casting, and then subjected to two-stage soaking treatment, rolling or hot extrusion, solid solution and two-stage aging heat treatment. The present invention can regulate the distribution and morphology of the microstructure and precipitated phase by regulating the composition and process of the alloy, obtain excellent comprehensive performance, and can be suitable for industrial production.

The present invention provides a mixed C4 conversion method, which comprises: 1, carrying out full hydrogenation treatment on mixed C4 so as to convert olefins in the mixed C4 into alkanes, step 2, separating the mixture treated in the step 1 to respectively obtain an n-butane component and an isobutane component; and step 3, carrying out oxidation treatment on the n-butane component obtained in the step 2 to obtain maleic anhydride. According to the method, closed-loop conversion of the mixed C4 to the chemical material can be realized, each component can be fully utilized, almost no waste is generated, and meanwhile, each process condition in the method is mild, easy to control, short in flow and simple in process.

This invention discloses a method for establishing the relationship between the carbonization performance and carbonization structure of low-carbon clinker, comprising the following steps: 1) determining the optimal water-cement ratio w / c and the corresponding molding amount c of the low-carbon clinker using a pressing molding method; 2) performing pressing molding, drying, carbonization curing, and measuring the compressive strength σ of the obtained carbonization product based on the determined w / c and c. c and carbon fixation rate r c 3) Calculate the volume percentage W of CaCO3 formed after carbonization. VCaCO3 The volume percentage of the remaining low-carbon clinker W Vc Then calculate the total volume ratio W between the two. 总 ;4) Establish compressive strength σ c Percentage of total volume W 总 The present invention establishes a stoichiometric relationship between the carbonization performance and carbonization structure of low-carbon clinker. This relationship directly reflects the carbonization performance of low-carbon clinker and can be used to guide the efficient application of different types of low-carbon clinker, making it suitable for widespread application.

The invention relates to a combined sealing structure and a sealing installation method.The combined sealing structure comprises a cylinder body, a piston rod, an outer sealing pipe sleeve and a sealing unit, the cylinder body is installed at the rear end of the outer sealing pipe sleeve, and the piston rod is installed at the front end of the cylinder body in a telescopic mode; the sealing unit comprises a first sealing structure, a second sealing structure and a third sealing structure. Through the combination of the first sealing structure, the second sealing structure and the third sealing structure, the comprehensive performance is high, and the sealing performance of the shield is further improved.

The utility model provides a split type die-casting pressure shell, which comprises a flow guide mechanism, a flow guide mechanism and a flow guide mechanism, the flow guide mechanism comprises a shell and a vortex tube, the vortex tube is fixed on one side of the shell, a flow guide channel is arranged in the vortex tube, a connecting part is arranged in the shell, and the wall thickness of the shell is 2.4-3.0 mm; and the diffusion plate is inserted into the connecting part in an interference manner. The flow guide mechanism and the diffuser plate are creatively arranged in a split mode, on one hand, the wall thickness of a machining element can be reduced through the structural arrangement, materials are saved, the production cost is reduced, on the other hand, disassembly and assembly can be achieved through the plug-in type structure, a flow guide channel can be detected more conveniently, and in addition, the detection efficiency is improved. Compared with an existing sand casting machining process, the split type pressure casting pressing shell, the turbocharger and the air compression system have the remarkable advantages of being simple in machining condition, high in production efficiency and the like, and have wide application prospects.

The utility model belongs to the technical field of automobile model frame forming equipment, and particularly relates to an automobile model frame die-casting forming device which comprises a lower die-casting die shell and an upper die-casting die shell buckled with the lower die-casting die shell, and a casting hole is formed in the center of the upper end of the upper die-casting die shell. A dismounting structure is connected between the lower die-casting die shell and the upper die-casting die shell; the disassembly and assembly structure comprises lower fixing plates and upper fixing plates, the lower fixing plates are fixedly installed on the surfaces of the two ends of the lower die-casting die shell, the upper fixing plates are fixedly installed on the surfaces of the two ends of the upper die-casting die shell, and inserting vertical rods are fixedly welded to the surfaces of the upper ends of the lower fixing plates. And the limiting insertion rods and the limiting insertion holes are in matched insertion connection, so that rapid positioning and stable connection of the mold are achieved. In the disassembly and assembly process, an operator can easily separate or lock the mold only by pulling the sliding butt strap, and complex tools and tedious steps are not needed.

The invention belongs to the technical field of bioactive peptides, and particularly relates to a pork liver by-product polypeptide as well as a preparation method and application thereof. The preparation method of the pork liver by-product polypeptide comprises the following specific steps: S1, adding pork liver into a phosphate buffer solution, crushing, centrifuging, collecting supernate, dialyzing the supernate, and freeze-drying to obtain pork liver protein; s2, dissolving the pork liver protein in deionized water, incubating, adjusting the pH value, adding protease for enzymolysis, deactivating enzyme, cooling, centrifuging, taking supernate, and freeze-drying, so as to obtain the pork liver by-product polypeptide. Compared with an existing method, the method is easy to operate and high in practicability, and the prepared pork liver by-product polypeptide has high anti-inflammatory activity and can regulate secretion of inflammatory factors.

The invention relates to the technical field of coatings, and provides a writing board coating which is arranged on a writing board main body and comprises a base coating and a top coating, microcrystalline cellulose-acrylate modified alkyd resin and first epoxy resin are used as film forming substances in the base coating, and the first epoxy resin and the second epoxy resin are used as film forming substances in the top coating. Acrylate and second epoxy resin are used as film-forming substances in the top-coat paint, and a titanium dioxide-zirconium dioxide-acrylate polymer is added into the top-coat paint. According to the writing board coating provided by the invention, the prime coating and the top coating are compounded, the prime coating endows the coating with excellent adhesive force, and the top coating endows the coating with an excellent self-cleaning function, so that the coating is easy to wipe, the prime coating is combined with the top coating, and the self-cleaning effect is good. The writing board coating with high durability, adhesive force and hydrophobicity can be obtained, and good writing experience is brought.

A slow-release composite fiber membrane for encapsulating passion fruit peel flavonoids by electrospinning and its preparation method are disclosed. The composite fiber membrane is prepared by coaxial electrospinning and consists of a core layer and a shell layer. The core layer is a carrier solution containing passion fruit peel flavonoids, and the shell layer is a biodegradable polymer solution. The composite fiber membrane has an encapsulation rate of ≥85% for passion fruit peel flavonoids and possesses antioxidant and slow-release properties. Chitosan, gelatin, zein, and β-cyclodextrin are used as spinning wall materials, and passion fruit peel flavonoids extracted by DES method are used as the functional core material. Efficient encapsulation, controlled release, and stabilization of flavonoids are achieved through coaxial electrospinning. This invention solves the problems of easy oxidation, photothermal instability, poor water solubility, and low bioavailability of flavonoids.

The invention belongs to the technical field of materials, and particularly relates to a metal composite PLA 3D printing wire with a concentric structure and a preparation method thereof.The metal composite PLA 3D printing wire with the concentric structure is prepared from, by mass, 20-70 parts of a core layer and 30-80 parts of a metal composite outer skin layer; the core layer is PLA; the metal composite outer skin layer comprises the following components in parts by mass: 20-80 parts of a high polymer material, 0.5-3 parts of a coupling agent, 2-10 parts of an auxiliary agent and 10-70 parts of functional powder. The metal composite printing consumable has the advantages of being high in strength, low in cost, stable in production, high in yield, low in production cost, high in printability and the like, and a desktop-level printer can easily print metal composite printing consumables.