11results about How to "With insulation" patented technology

The invention discloses a fiber foamed concrete and a preparation method thereof. The fiber foamed concrete comprises the following raw materials in parts by weight: 5290 parts of cement, 4965 parts of water, 1.361 part of foaming solution, 1.2964 part of fly ash and 10 parts of fiber. The preparation method comprises the following steps: proportionally weighing the components; sequentially adding the cement and fly ash into a stirrer, proportionally weighing the water, uniformly stirring the mixture by the stirrer, and adding the fiber; preparing and adding the foaming solution; gradually adding the foam into the mixture, and continuously stirring until all the components are uniformly mixed; pouring the mixture into a mold on which lubricating oil is brushed, and curing in a curing chamber; after 24 hours, removing the mold; and respectively curing for 3 days, 7 days and 28 days for experimental detection. The fiber foamed concrete has the advantages of favorable thermal insulation property, favorable compression resistance and favorable bending resistance, and is applicable to a railway bed strengthening layer.

The invention discloses a wear-resistant polyurethane material and a wear-resistant polyurethane rubber roller, and relates to the technical field of high polymer materials. When the wear-resistant polyurethane material is prepared, firstly, 4, 4 '-(10, 20-di-4-pyridyl-21H, 23H-porphin-5, 15-diyl) dibenzoic acid is reduced through a reducing agent, then is oxidized through an oxidizing agent, and finally reacts with hydroxylamine hydrochloride and triethylamine to obtain functionalized porphyrin; secondly, enabling the aramid short fibers subjected to acid etching to react with 3-chloropropyltriethoxysilane to obtain modified aramid short fibers; finally, 4, 4-diphenylmethane diisocyanate and polytetrahydrofuran ether glycol are subjected to a reaction, functionalized porphyrin and 1, 4-butanediol serve as chain extenders, then the modified aramid short fibers are added, and the wear-resistant polyurethane material is obtained through vulcanization. The wear-resistant polyurethane material prepared by the invention can be used for manufacturing a polyurethane rubber roller, and has high strength, good antibacterial property and self-repairing property.

The invention discloses LaxCe (1-x) O (2-0.5 x) hollow microspheres and a preparation method thereof, and belongs to the field of rare earth metallurgy. The LaxCe (1-x) O (2-0.5 x) hollow microspheres are prepared by grinding LaxCe (1-x) O (2-0.5 x) (x = 0, 0.36, 0.5) powder, performing spray granulation and performing high-temperature firing. The slurry for spray granulation is high in concentration and good in dispersity, the production cost of spray granulation is reduced, and the yield of hollow microspheres is increased; the prepared LaxCe (1-x) O (2-0.5 x) hollow microspheres have the advantages of light weight, heat insulation, sound insulation and excellent low-frequency performance, and have good application prospects in the fields of reflective thermal insulation coatings, light thermal insulation materials, thermal spraying thermal insulation and wear-resistant materials, thermal insulation plates, sewage purification, sound absorption materials, drug sustained-release and controlled-release bodies, catalyst carriers, photoelectric materials and the like.

The present invention provides an inflatable swimming pool that is convenient for drainage, including an air chamber layer and a bottom pad, wherein the air chamber layer is surrounded into an approximate rectangle, the two long sides of the rectangular air chamber layer are recessed inwardly, the bottom of the air chamber layer is closed by the bottom pad to form a pool structure, and after the air chamber layer and the bottom pad are filled with water, the two long sides of the air chamber layer can expand outwardly to form a straight rectangular pool, a storage chamber is also provided in the air chamber layer, a closed cover is provided outside the storage chamber, a power module, a control switch and an air pump are placed in the storage chamber, the air pump is connected to the inner cavity of the air chamber layer through an inflation connecting pipe, and the control switch can control the air pump to be turned on or off. The present invention is more convenient to use, has better drainage efficiency and can be automatically inflated.

This invention relates to a high-temperature resistant foam ceramic microwave absorbing material and its preparation method, belonging to the technical field of microwave absorbing stealth materials. The preparation method of the high-temperature resistant foam ceramic microwave absorbing material includes the following steps: (1) mixing silicon carbide and calcium carbonate into a mixed powder; (2) mixing the mixed powder, borax, sodium silicate, potassium carbonate, polyvinyl alcohol, sodium carboxymethyl cellulose, and water to form a slurry; (3) impregnating a foam ceramic component with the slurry, followed by drying and sintering to obtain the high-temperature resistant foam ceramic microwave absorbing material. The foam ceramic microwave absorbing material prepared by this invention retains the original properties of the foam ceramic to the maximum extent, and exhibits excellent microwave absorption performance, especially since high temperature of 850℃ has no effect on its microwave absorption performance, indicating that the foam ceramic microwave absorbing material prepared by this invention has excellent microwave absorption performance and high-temperature resistance.

The utility model discloses novel nanometer corrosion-resistant fiber cloth. The novel nano corrosion-resistant fiber cloth comprises a lower layer, a middle layer and an upper layer which are sequentially arranged from bottom to top, the upper layer is an upper needling layer formed by needling and weaving nano fibers; the middle layer is a woven layer formed by weaving nano fibers in a criss-cross manner; the lower layer is an upper needling layer formed by needling and weaving nano fibers; and the penetrating line penetrates through the lower layer, the middle layer and the upper layer. According to the utility model, through the combination of multiple layers, the connection tightness between the layers is improved. The upper needled layer and the lower needled layer which are needled and woven are of irregular structures and are tightly attached to the upper side and the lower side of the regularly-woven woven layer, the uneven needled layers can be conveniently embedded into mesh gaps of the woven layer, and meanwhile the multi-layer composite connection strength is achieved through the penetrating lines.

The utility model provides an intelligent box-pump integrated fire-fighting pump room which is characterized in that a fire-fighting water supply pipe is arranged in the pump room, a water inlet valve well and a water inlet pipeline are arranged on the side edge of a water tank, the pump room is provided with an insulating layer, and a fire-fighting pump pipeline and an inspection pipeline are arranged at the rear part of the pump room and are respectively communicated with the water tank and the fire-fighting water supply pipe; the fire pump pipeline is provided with a fire pump, the horizontal water supply pipe is connected with the water tank through a fire-fighting pressure-stabilizing pump, a control cabinet, a dehumidifier and a water collecting pit are arranged in the pump room, the fire pump and the fire-fighting pressure-stabilizing pump are electrically connected with the control cabinet, the upper portion and the lower portion of the water tank are provided with an overflow port and a water outlet respectively, and the overflow port and the water outlet are both communicated with the water collecting pit. A ventilating fan is arranged on the side edge of the pump room; on the basis of existing fire-fighting equipment, the water tank, the fire-fighting pressure stabilizing equipment, the fire-fighting supercharging equipment and the control cabinet are reasonably arranged, and the pump room has the functions of heat preservation, ventilation, temperature adjustment and moisture / flood prevention.

The utility model belongs to lithium battery heat preservation technical field discloses a battery heat preservation box, including box body and heating device, the box body is by upper box body and lower box body is composed, the upper box body and lower box body are through magic paste sticky buckle and are composed box body, the heating device is by heating blanket, heater is composed, the heating blanket with heating ware is connected through electric wire, the heater includes temperature controller, electric wire, wire ear, is equipped with the fuse on the electric wire. The utility model battery heat preservation box includes box body and heating device, and the box body adopts three -layer structure, has waterproof, moisture -proof, fire -retardant, the efficacy of heat preservation, is equipped with independent heating blanket in the box body to the battery and is covered and is wrapped, controls the temperature in the box body through temperature controller, ensures that the temperature in the heat preservation box meets the technical requirement. The utility model battery heat preservation box can ensure that the temperature in the heat preservation box is not less than 0 DEG C for 24 hours under the environment of -40 DEG C, can good protection battery normal use under low temperature environment.

The utility model relates to the technical field of heat insulation blankets, in particular to an aerogel reflective aluminum heat insulation blanket which comprises aerogel, and a first polyurethane hot melt adhesive and a second polyurethane hot melt adhesive are respectively adhered to two sides of the aerogel; the high-reflection aluminum foil is adhered to the aerogel through a first polyurethane hot melt adhesive; and the fiber film is adhered to the aerogel through a second polyurethane hot melt adhesive. The aerogel reflective aluminum heat insulation blanket provided by the utility model is a flexible roll film, has various special and excellent functions of non-combustibility, moisture resistance, heat preservation and the like, can be applied to high-performance heat insulation and barrier protection of partition walls, suspended ceilings, building floors and the like, and has higher practical value.

The utility model discloses a fuel urea box module welding mold, and belongs to the technical field of welding molds. The fuel urea box module welding mold comprises an upper mold assembly, a lower mold assembly and a heating plate mechanism, wherein the heating plate mechanism is arranged between the upper mold assembly and the lower mold assembly; the heating plate mechanism comprises a first heating plate assembly and a second heating plate assembly, and the first heating plate assembly and the second heating plate assembly are arranged in parallel; the upper die assembly and the lower die assembly each comprise a bottom plate, a supporting assembly and a shape correcting mechanism. The fuel urea box module is limited and fixed through the upper mold assembly and the lower mold assembly, the heating plate mechanism heats and melts the welding face, the uniformity of the temperature of the welding face is guaranteed, and welding is conducted; the supporting assembly constructs a containing cavity according to the shape of the fuel oil urea box module so as to place and support the fuel oil urea box module. The shape correcting mechanism flattens deformation generated in the product injection molding and cooling process before welding, so that the profile tolerance and straightness of the product and the flatness of the welding face are guaranteed.

The present invention relates to the technical field of fuses, and discloses an aramid fiber fuse protection core with an arc extinguishing auxiliary function and a preparation method thereof, comprising: a support body and a metal wire, wherein the metal wire is wound on the support body, and the support body can isolate the two disconnected ends of the metal wire after the metal wire is melted; wherein the support body is made of aramid fiber. The support body has the characteristics of insulation, flame retardancy, and high temperature resistance. After the metal wire is melted, when the two disconnected ends thereof are separated under the action of external force, they can be isolated by the support body. Since the support body has insulation, the two disconnected ends of the metal wire can quickly cut off the current, and the flame retardancy of the support body can be used to prevent the support body from burning itself. The raw materials used for the protection core are more environmentally friendly and meet the halogen-free environmental protection standards, and can further ensure its isolation performance and improve the arc extinguishing effect.