48results about How to "Effective degassing" patented technology

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.

A polyacetal composite according to the invention includes a polymer unit (A) composed of a polyacetal resin, and a polymer unit (B) composed of a thermoplastic resin or elastomer having an acidic group, and the polymer unit (A) and the polymer unit (B) directly adhere to each other. The acidic group includes, for example, a carboxyl group and a carboxylic anhydride group. The thermoplastic resin or elastomer having an acidic group includes a comonomer having at least one selected from among acrylic acid, methacrylic acid, fumaric acid, maleic acid, maleic anhydride, and itaconic acid as a comonomer, and typical examples thereof include, for example, acid-modified polystyrene and acid-modified NBR (acid-modified nitrile rubber). In this polyacetal composite, the polyacetal resin and another polymeric material are firmly fixed with each other.

The invention discloses a cast aluminum alloy with pinholes removed and a smelting method thereof. The smelting method comprises the steps of: firstly, heating an aluminum ingot or molten aluminum for completely melting the aluminum ingot or molten aluminum; adding Si, Fe, Cu, Mn, Mg, Zn and Ti, and completely dissolving and melting the added components; refining, and maintaining the temperature at 700-1000 DEG C to obtain alloy melt; degassing and purifying the alloy melt by using nitrogen or inert gas or mixed gas of nitrogen and inert gas at any ratio, and persistently introducing the gas until reaction is finished; simultaneously adding MoB and LiAlH4 powder to the alloy melt in a fluidized manner along with the gas; stirring to make MoB and LiAlH4 be uniformly distributed in the alloy melt and sufficiently react with the alloy melt; and standing, adjusting the temperature to 680-730 DEG C, discharging the molten alloy out of a furnace and carrying out casting production. According to the cast aluminum alloy with pinholes removed and the smelting method thereof, the defects of the performance of the traditional aluminum alloy are overcome, the tenacity, forming performance andhardenability of the aluminum alloy are improved, and high-grade base materials are provided for high-efficiency deep processing.

The invention discloses a high-thermal-conductivity aluminum alloy. The high-thermal-conductivity aluminum alloy comprises the following components: 0.2%-0.85% of Mg, 0.1%-0.3% of Si, 0.05%-0.2% of Cu, 0.1%-0.2% of Zn, 0.1%-0.2% of Fe, 0.1%-0.15% of Ti, 0.1%-0.15% of other alloy elements and the balance of Al. the other alloy elements comprise the combination of Mn, B, Ni, V, Cr, Zr and rare earthelements, and the ratio of the Mn to the B to the Ni to the V to the Cr to the Zr to the rare earth elements is (0.1-0.2): (0.05-0.1): (0.2-0.4): (1.0-1.2): (0.2-0.4): 0.5; the rare earth elements comprise one of Gd, La and Eu. The high-thermal-conductivity aluminum alloy disclosed by the invention has good mechanical properties while having good thermal conductivity.

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.

Apparatus for producing injection-molded parts, particularly PET preforms, includes a twin-screw extruder or multi-screw extruder for preparing and/or plasticizing material, preferably in granular form, which is transferred to a transfer reservoir. A piston unit further processes the material. The extruder has a plurality of processing zones, whereby at least two process zones are configured as degassing zones.

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 invention relates to an alloy improved material and a preparation method thereof and relates to the field of aluminum alloy modifier. The alloy improved material is composed of spraying depositionpowder, sodium salt modifier and a binding agent. The weight ratio of the spraying deposition powder to the sodium salt modifier to the binding agent is (5-10):(1-3):1. Three modifiers strontium, sodium and rare earth neodymium are combined according to the characteristic, the modification activity is effectively retained, and the alloy improved material has the characteristics of being short inmodification incubation period, long in effective modification time and stable in modification effect. Kaolinite clay powder in raw materials can serve as a modifier carrier to remove gas and slag, the smelting efficiency is improved, and rich aluminum oxide and silicon oxide can improve hardness of an alloy. The luminescence property of a neodymium element enables the aluminum alloy to have the luminescence characteristics, and coating of luminescent materials is not needed. According to the preparation method, the spraying deposition method is adopted for further smelting and preparing tinyintermediate alloy powder, the intermediate alloy powder is bonded with the sodium modifier for extrusion forming, the modifier can be dissolved and dispersed rapidly, the incubation period is shortened, and rapid and effective modification is achieved.

The present invention provides a reaction method for a reaction system generating gas by a reaction, comprising the steps of: providing a sealed mixing section for mixing a plurality of liquids to start a reaction and a degassing section having a gas-liquid interface for removing, from a reaction liquid, gas bubbles generated from a mixed reaction liquid, separately; and feeding the reaction liquid mixed in the mixing section to the degassing section, without being interfered by gas bubbles even in a reaction system where gas is generated by a reaction, so that it is possible to stabilize a reaction at the start of the reaction and in the progress of the reaction and stably feed liquid to a subsequent process.

A degasser for at least partially degassing a gas-containing liquid, in particular for a sample separation device, includes a circulation path along which the liquid can be circulated between a liquid accommodation volume and one of an inlet to a consumer unit consuming degassed liquid or a conduit leading to the inlet, a drive unit configured for circulating the liquid in the circulation path, and a filter in the circulation path for filtering particles or debris out of the liquid, wherein the liquid is forced through the filter by the drive unit. The drive unit includes a movable body, in particular a movable piston or a movable membrane, configured for at least partially degassing the liquid by generating a negative pressure in the liquid.

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.