266results about How to "Easy to solidify" patented technology

This invention relates to the area of heat management systems and, specifically, to the heat management systems, which include application of phase change materials (PCM). Proposed heat or cold storage multistage tower comprises a housing with a multistage system of flat rigid containers; significant fraction of internal space of each container is filled with PCM; these containers are fabricated from ceramics, glass, glass ceramics or sulfur concrete. Another version of the heat or cold storage tower is based on application of multi-channel blocks from ceramics, glass, glass ceramics or sulfur concrete; the parallel internal vertical channels of the blocks are open and sealed at their bottoms alternatively, and the channels with the sealed bottoms are filled partially with PCM. The proposed invention allows to achieve effective heat transfer between a heat transfer fluid (HTF) and PCM in the processes of charging and discharging of the containers with heat or cold.

Improved bulk-solidifying amorphous alloy compositions and methods of making and casting such compositions are provided. The improved bulk-solidifying amorphous alloys are preferably subjected to a superheating treatment and subsequently are cast into articles with high elastic limit. The invention allows use of lower purity raw-materials, and as such effectively reduces the overall cost of the final articles. Furthermore, the invention provides for the casting of new alloys into shapes at lower cooling rates then is possible with the conventional bulk-solidifying amorphous alloys.

A resistive welding electrode includes at least a weld face constructed of a refractory-based material that exhibits an electrical conductivity that is less than or equal to 65% of the electrical conductivity of commercially pure annealed copper as defined by the International Annealed Copper Standard (IACS). A method of using the resistive welding electrode to resistance spot weld a workpiece stack-up that includes an aluminum alloy workpiece and steel workpiece that overlap and contact each other at a faying interface is also disclosed.

The invention discloses a grade-A fireproof self-heat-insulation wall body and a manufacturing method thereof. The wall body comprises a grade-A fireproof self-heat-insulation wall body building block, a heat-insulation plate, a plastic rivet bolt, a masonry mortar layer and a heat-insulation anti-crack mortar layer, wherein the heat-insulation plate is adhered to a beam column of a frame structure through the masonry mortar layer; heat-insulation anti-crack mortar wraps each surface of the combination of the heat-insulation plate and the masonry mortar layer; the grade-A fireproof self-heat-insulation wall body building block, the heat-insulation plate, the plastic rivet bolt, the masonry mortar layer and the heat-insulation anti-crack mortar layer adopt an integrated structure; moreover, manufacturing methods for each part are introduced in detail. According to the grade-A fireproof self-heat-insulation wall body and the manufacturing method thereof, the product strength is greatly improved, the volume-weight is reduced on the basis that the product strength meets requirements, and the labor intensity is further reduced; the load of a building is reduced, the weight is light, the strength is high, and the fireproof, waterproof and heat-insulation effects are good; one-time construction is performed, the masonry of a main wall body is completed, the requirement for saving 65 percent of energy is also met, heat-insulation construction is not required to be performed, and the service life of the wall body is the same as that of the building.

The invention relates to an air-cooled semi-continuous casting system and method of a high-activity alloy. The system comprises water-cooled crystallizers, air injection devices, an air-cooling device, an air tank, and a casting device, wherein the water-cooled crystallizers are located above the air injection devices; each air injection device is composed of an air injection ring, an air nozzle, and an air guide plate; the air injection devices are connected with the air cooling device and the air tank in order. The method comprises the following process steps: (1) checking leakproofness and unobstruction of the system, and adjusting angles of the air nozzles; (2) enabling dummy ingots to extend into the water-cooled crystallizers; directing an alloy melt to flow into a cavity, turning on a casting machine, adjusting a casting speed, and controlling a temperature of cooling air and adjusting a flow velocity of the air; and (3) when a length of an ingot blank meets a requirement, stopping melt supply firstly, closing a flow control valve after the melt in the water-cooled crystallizers is gradually cooled and solidified, and after an upper surface of the ingot blank is lowered down to a position below secondary cooling air injection devices, removing the water-cooled crystallizers and the secondary cooling air injection devices, lifting out the metal ingot blank, and then finishing casting.

The invention relates to a viable-bacteria functional jelly and a processing technique thereof. The viable-bacteria functional jelly comprises a jelly outer layer and a jelly core layer. The jelly core layer comprises the following components in parts by mass: 25-35 parts of fruit flesh, 0.5-10 parts of trehalose, 15-20 parts of white granulated sugar, 1.5-7.5 parts of first jelly glue powder, 0.2-1 part of first acidity regulator, 0.1-0.5 part of calcium lactate, 30-60 parts of water and probiotic powder. The jelly outer layer comprises 30-50 parts of fruit juice, 5-15 parts of white granulated sugar, 0.5-5 parts of galactooligosaccharide, 2-7 parts of second jelly glue powder, 25-65 parts of water, 0.2-2 parts of second acidity regulator and 0.1-0.5 part of calcium lactate. By adding the galactooligosaccharide, the prebiotics can promote the proliferation of Bifidobacterium and other probiotics in the human body, thereby providing sweetness on the premise of not increasing the possibility of diabetes and saprodontia. The higher content of active probiotics fills up the blank of active probiotic jellies in the market.

The invention discloses a casting method of a spheroidal graphite cast iron valve, and relates to the spheroidal graphite cast iron valve. The method comprises the steps of model making, modeling, smelting, pouring, heat treatment and obtaining of a finished product valve casting. Alloy elements are not added, the spheroidal graphite cast iron valve with the supersize can be stably produced, a dedicated slag blocking device is arranged at the front end of a transverse sprue, when molten iron of the transverse sprue is introduced into the front end, the slag blocking effect is achieved, it is ensured that a mold cavity is rapidly and stably filled with the molten iron, oxide inclusions are reduced, a heat preservation top riser is adopted, and is placed on the top of the valve, and castingfeeding, slag discharging and exhausting are facilitated; a chilling block is arranged at the position, on the large and thick section and the portion with the large wall thickness difference, in thecasting, chromite sand is used around an even core and a shaft head in a shaft hole of the casting, the upper portion of an annular belt is paved with chromite sand, it is ensured that the casting canbe subject to directional sequential solidification, and meanwhile, the casting surface quality is ensured, and the method is particularly suitable for making a spheroidal graphite cast iron water and electricity butterfly valve with the supersize and the large section.

The invention relates to the technical field of well drilling, and discloses a plugging agent and a preparation method thereof. The plugging agent comprises, by mass, 5-45 parts of a porous substance, 5-35 parts of a proppant, 10-25 parts of a coagulant, and 5-30 parts of special fiber. The plugging agent provided by the invention does not cause permanent damage to a leakage loss section of an oil reservoir. When filter cake formed by the plugging agent is dissolved by using acid, oil and gas pores can be reopened, such that a problem of oil and gas production reduction can be avoided, and further a problem of oil and gas recovery failure caused by completely blocked oil and gas pores can be avoided. Also, under the effect of geotemperature, the filter cake formed by the plugging agent provided by the invention can be gradually solidified. As a result of tests, compared with a bridging type plugging agent, the plugging agent provided by the invention has the advantages of faster solidification, higher pressure bearing capacity, and thus better plugging effect.

Deterioration of a power storage unit included in a vehicle is prevented or the power storage unit that has deteriorated is repaired, and the charge and discharge performance of the power storage unit is maximized to be maintained for a long time. Attention has focused on a reaction product formed on an electrode surface which causes malfunction or deterioration of a power storage unit such as a lithium-ion secondary battery. In the power storage unit used for a vehicle that runs on the power of an electric motor, rapid discharge occurring in the acceleration of the vehicle or the like tends to promote the solidification of the reaction product. The reaction product is removed by application of an electrical stimulus, specifically, an inversion pulse voltage.

A method for remediating a microannulus in a cased wellbore may include conveying a downhole tool into the cased wellbore to a location of interest. The location of interest may include one or more perforations in a casing and a microannulus. The downhole tool may include a heat generation device. The method may also include activating the heat generation device to melt a fill material at the location of interest such that the fill material flows through the perforations into one or more voids, including the microannulus, in or around cement disposed between the casing and the cased wellbore. Additionally, the method may include deactivating the heat generation device to facilitate solidification of the fill material in the one or more voids and sealing of the microannulus.

Nickel-based superalloy, suitable for monocrystalline solidification, having the following composition by weight:

The invention discloses a magnesium alloy casting method which comprises the steps of smelting magnesium alloy and deslagging; preheating a gypsum mould; using a gas mixture containing 1-10% of sulfur hexafluoride and 90-99% of argon to pressing a lower tank for 1-2 minutes with the gas pressure of 1-5Kpa; vacuumizing an upper tank to reach a specified negative pressure value k1, injecting a gas mixture containing 1-10% of the sulfur hexafluoride and 90-99% of the argon into the upper tank to rise to a specified negative pressure value k2; pressing the lower tank with the gas pressure of 10-80KPa to realize pressing casting. The invention discloses a magnesium alloy casting device. According to the technical scheme disclosed by the invention, a produced casting has the average wall thickness of 1.0-1.5mm, the tensile strength of 190MPa and the ductility of 2-3%, and is high in surface quality, compact in internals and good in performance, oxidation, cold shut and slag inclusion defects are avoided, and simple process, convenience in operation and low cost are realized.

The invention relates to the technical field of medical anesthesia, in particular to a medical analgesic and hemostatic dressing for anesthesiology department and a preparation method of the medical analgesic and hemostatic dressing. The dressing comprises a non-woven fabric surface layer, a water absorbing middle layer and a functional bottom layer from top to bottom, wherein the water absorbingmiddle layer is a compressed modified loofah sponge, and pores of the modified loofah sponge are filled with modified sepiolite and modified chitosan; the functional bottom layer is hydrogel doped with an analgesic. The preparation method of the dressing comprises the following steps: the functional bottom layer and the water absorbing middle layer are expanded and overlapped to be placed into a needling machine for needling, and then the non-woven fabric surface layer is placed on the water absorbing middle layer in an overlapping manner for needling. The medical analgesic and hemostatic dressing can stop bleeding rapidly, can also realize sedative and analgesic effects and has good biocompatibility and biodegradability.

A method of encasing a magnet to isolate the magnet from the environment is provided. The method includes introducing a magnet to a housing having at least one passage capable of passing a fluid from the environment to the magnet, introducing a hardenable fluid, for example, a resin, to the passage to obstruct the passage, and solidifying the hardenable fluid in the passage to provide a solid obstruction to the passage to isolate the magnet from environmental fluids. The housing may be provided as two mating housings and the passage may be provided by the mating surfaces between the two housings. An encased magnet is also disclosed. The encased magnet may be used in any environment that may be damaging to the magnet, for example, in surgical or prosthetic applications.