50results about How to "Effective degassing" patented technology

The present invention provides a gas-permeable hollow fiber membrane having an inner diameter of 50 to 500 μm and a membrane thickness of 10 to 150 μm, which is preferably a composite hollow fiber membrane having a three-layer structure consisting of a nonporous layer having porous layers disposed on both sides thereof. Dissolved gases present in an ink can be removed by passing the ink through the bores of hollow fibers comprising such a hollow fiber membrane, and evacuating the outer surface side of the hollow fibers. This method makes it possible not only to degas inks with a slight pressure loss, but also to degas inks stably even if pressure changes occur during degassing.

The de-airing device for purifying blood has one box with water inlet, water outlet, air exhaust, dialysate joint and waste liquid joint. The water inlet is connected to the liquid inlet of the flow controlling choke; the liquid outlet of the flow controlling choke is connected to two pipelines, including the first pipeline connected to the liquid inlet of the first de-airing tank via a gear pump and the second pipeline connected to the liquid exhaust of the second de-airing tank via a second solenoid valve; the liquid outlet and the air exhaust of the first de-airing tank are connected separately to the dialysis joint and the air exhaust joint pipeline; and the liquid inlet and the liquid outlet of the second de-airing tank are connected separately to the waste liquid joint pipeline and the water outlet joint via a second gear pump. The present invention can avoid air embolism to blood for normal dialysis treatment.

Molding methods and molds for making a synthetic resin molded product include disposing a curable liquid resin mixture in a recess of a female mold. The curable liquid resin mixture is then simultaneously agitated and degassed by a mixer while under a partial vacuum. More specifically, at least the female mold is orbited around an orbital axis while being rotated about a rotational axis that is eccentric to the orbital axis. After being thoroughly mixed and degassed, the liquid mixture is then cured in the mold unit.

An ice maker for creating a layer of ice on a cooled surface, is disclosed. The ice maker has a source of de-gassed water, which may be de-gassed by being heated. A pump to pressurize the de-gassed water is provided and the water is passed to a sprayer hydraulically connected to the pump. The sprayer has nozzles sized and shaped to convert the pressurized water into a fine de-gassing droplet spray directed at the cooled surface. The droplets are sized to substantially freeze on contact with the cooled surface. In one embodiment a microprocessor is provided to change the volume sprayed according to the speed of the ice maker to ensure an even coat of ice is layed down.

Molding methods and molds for making a synthetic resin molded product include disposing a curable liquid resin mixture in a recess of a female mold. The curable liquid resin mixture is then simultaneously agitated and degassed by a mixer while under a partial vacuum. More specifically, at least the female mold is orbited around an orbital axis while being rotated about a rotational axis that is eccentric to the orbital axis. After being thoroughly mixed and degassed, the liquid mixture is then cured in the mold unit.

The invention discloses an aluminum alloy refining material and a preparation method and an application thereof and relates to the field of aluminum alloy modifiers. The aluminum alloy refining material comprises the following raw materials in percentage by weight: 5-8% of potassium fluoroaluminate, 7-11% of sodium fluoroaluminate, 3-5% of disodium hydrogen phosphate hydrate, 5-7% of potassium chloride, 4-8% of sodium chloride, 0.4-0.8% of barium acetate, 3-6% of barium nitrate, 0.2-0.9% of samarium fluoride, 0.2-0.9% of aluminum acetate, 6-8% of aluminum chloride, 15-20% of lepidolite compound powder and the balance of pure aluminum. The aluminum alloy refining material has the beneficial effects that the four modifiers of barium, sodium, lithium and samarium are combined according to thecharacteristics and a sintered body with a loose structure is prepared by adopting spray deposition and extrusion calcination in one step, so that the metamorphic activity is effectively retained andthe material has the characteristics of short metamorphic incubation period, long effective metamorphic time and stable metamorphic effect; and the lepidolite powder can serve as a modifier carrier for degassing and slag removal and the alloy hardness can be significantly increased by utilizing high hardness matters contained in the lepidolite powder.

A thermal management device for a vehicle includes heat medium circuits, a reserve tank, and a connector. The heat medium circulates through the heat medium circuits separately. The reserve tank is configured to separate an air bubble contained in the heat medium from the heat medium. The connector allows the reserve tank to come in communication with the heat medium circuits selectively. As such, an occurrence of the heat loss in the degassing performed in the reserve tank can be suppressed with the thermal management device for a vehicle including the heat medium circuits.

The process of producing Zn-Cu-Ni alloy strip includes the steps of casting, face milling, rought rolling, intermediate annealing, rinsing, intermediate rolling, edge trimming, intermediate annealing, finish rolling, defatting and rinsing, annealing, straightening, surface treatment, etc. The annealing step increased between the defatting and rinsing step and the straightening step is to maintain in 30-75 vol% hydrogen atmosphere at 350-420 deg.c for 6-9 hr, and can form one protecting film layer on the surface of the strip and raise the heat resisting performance from 180 deg.c to 250 deg.c. In addition, sorting proper defatting agent and concentration can further raise the heat resisting performance of the material.

The invention discloses a molten salt material, a preparation method and application thereof, and relates to the field of aluminum alloy modifiers. The molten salt material is made of the following raw materials in parts by weight: sodium phosphate 13-18%, aluminum chloride 5-9%, manganese fluoride 0.6-1.2%, manganese acetate 5-8%, manganese nitrate 3-6%, fluorine Sodium chloride 11‑15%, sodium fluorosilicate 3‑7%, lithium fluoride 0.2‑0.6%, ceramic powder 2‑7%, the rest is potassium chloride; rare earth ytterbium, thulium, sodium, lithium, etc. The mutual cooperation of elements makes the metamorphic effect excellent. The chlorite powder in the raw material can be used as a modifier carrier to remove gas and slag, simplify the smelting steps, and improve the smelting efficiency. The rich alumina and silicon oxide can significantly increase the hardness of the alloy. Combining the molten salt electrolytic deposition process with the metamorphic smelting process can give full play to the excellent metamorphic effect of molten salt materials, which can significantly improve the strength, plasticity and hardness of aluminum alloy castings.

In a method for producing injection-molded parts, PET material is processed and / or plasticized by means of a twin-screw extruder having a plurality of processing zones. At least two processing zones are implemented as degassing zones. The processed and / or plasticized material is transferred to a transfer reservoir and then further processed by a piston unit.

The invention provides a mold coating. A mold is used for producing an aluminum alloy part. The mold coating is at least partially attached to the inner wall of a mold cavity. The materials of the coating comprise NaCl and / or KCl, NaF, CaF2, K3AlF6, Na2SO4 and / or K2SO4. When the mold is a metal mold, the materials of the coating further comprise graphite. When the mold is a plaster mold, the materials of the coating further comprise graphite and CaCO3, and the thickness of the coating can be selected to range from 0.5 mm to 5 mm. According to a preparation method of the mold coating, the materials of the coating are sprayed or dip-coated to the inner wall of the mold cavity after being subjected to hot melting.

The invention relates to a tread pattern for a vehicle tire with radially protruding positive profiles (1) delimited by grooves (5, 6, 7, 8) - such as profiled block elements or profiled ribs - delimited in the radial direction R of the tire by a radially outer surface (13), and with mutually spaced apart, fine incisions (10) formed in the positive profiles (1), the tread pattern being characterised in that fine incisions (10) extending along their main direction of extension in the radially outer surface (13) are formed in the positive profile (1) and have first straight sections (14) - oriented, in particular, in the main direction of extension - and second sections (15) in the shape of circle segment lines,

The invention discloses a gypsum mold for aluminum alloy casting, and the gypsum mold is applicable to low-pressure casting. The gypsum mold comprises a mold shell and a mold cavity formed by the moldshell and used for the forming of an aluminum alloy casting, an adhesion layer is arranged on the inner wall of the mold cavity, and the adhesion layer material comprises NaCl, KCl, NaF, CaF2, K3AlF6, Na2SO4, K2SO4, graphite and CaCo3; the thickness of the adhesion layer can be 0.5-5 mm; and the mold cavity is preferably provided with a dead head structure positioned at the top or a process machining allowance corresponding to the product.

A one stage process for the preparation reservoir patches comprises feeding webs to a first pair of sealing rollers and, thence, directly to a second pair of die-cutting rollers, and preferably directly into a packaging step, thereby avoiding most operatorrelated error, and substantially increasing overall sterility and reproducibility.

Process for the preparation of an edible fat-continuous spread comprising at most 45 wt. % of fat using liquid oil, a fat powder comprising structuring fat and a water-phase, comprising the steps of: a. providing amixture comprising the water-phase and the fat powder; b. subjecting said mixture to at least a partial vacuum; c. mixing the mixture prepared at step ‘b’ to provide a fat-continuous spread, wherein the liquid oil may be added to the mixture at any of steps ‘a’, ‘b’, or ‘c’ or when added in parts in any combination at steps ‘a’, ‘b’ and ‘c’.

In a method for producing injection-molded parts, PET material is processed and / or plasticized by means of a twin-screw extruder having a plurality of processing zones. At least two processing zones are implemented as degassing zones. The processed and / or plasticized material is transferred to a transfer reservoir and then further processed by a piston unit.

According to the invention, there is a hydraulic device for degassing liquids, in particular hydraulic oil, said hydraulic device having a pressure source from which the liquid to be degassed flows through nozzles, a pipe connecting to the nozzle, characterized in that the quantity of liquid flowing through the nozzle and the through-flow cross-section of the nozzle are matched to each other such that a liquid jet is produced in the tube by supercavitation downstream of the nozzle , the liquid jet is surrounded by a continuous region of liquid vapor and air.