78results about How to "Promote degassing" patented technology

A pre-baking apparatus for heating a substrate upstream of a process tool is adapted to be connected to an EFEM (equipment front end module) and includes: a chamber which has a front face with multiple slots arranged in a height direction of the chamber, and which is divided into multiple compartments extending from the multiple slots, respectively, toward a rear end of the chamber for loading and unloading substrates; and a connecting frame for connecting the chamber to the process tool. The multiple compartments are separated from each other by a divider plate and provided with heaters for heating the multiple compartments, and each compartment has a gas injection port for blowing a hot inert gas over the substrate placed therein toward the slot.

The present invention provides an interlayer for a laminated glass which does not give rise to the moiré phenomenon even when the arrangement and pitch of its embossments are orderly, hence providing for good workability in cutting and laminating operations and good deaeration in preliminary contact bonding, thus insuring the production of a laminated glass of high quality with a minimum of rejects for reasons of air bubbles, and a laminated glass containing said interlayer.The invention also provides an interlayer for a laminated glass which provides for good deaeration without a risk for premature marginal sealing even if the temperature at initiation of deaeration at preliminary contact bonding is not critically controlled and which does not require raising of temperature for achieving a marginal seal of the glass-interlayer assembly, and a laminated glass containing said interlayer.

An apparatus and method are disclosed in which ultrasonic vibration is used to assist the degassing of molten metals or metal alloys thereby reducing gas content in the molten metals or alloys. High-intensity ultrasonic vibration is applied to a radiator that creates cavitation bubbles, induces acoustic streaming in the melt, and breaks up purge gas (e.g., argon or nitrogen) which is intentionally introduced in a small amount into the melt in order to collect the cavitation bubbles and to make the cavitation bubbles survive in the melt. The molten metal or alloy in one version of the invention is an aluminum alloy. The ultrasonic vibrations create cavitation bubbles and break up the large purge gas bubbles into small bubbles and disperse the bubbles in the molten metal or alloy more uniformly, resulting in a fast and clean degassing.

The invention discloses a method for controlling cleanliness of molten steel, and a smelting control method capable of preventing a molten steel gap from nodulation during sulphur and aluminum contained steel pouring, and belongs to the field of smelting. The method for controlling cleanliness of the molten steel comprises the following steps that blast furnace molten iron without desulfuration issubjected to converter smelting, and during converter tapping, deoxygenation, alloying and tapping wash heat are carried out in sequence for carrying out inclusion removal treatment. Through an LF furnace, converter tapping is subjected to refining under the condition that acid soluble aluminum is not adjusted, that is, during tapping, a slagging constituent is added for controlling refining slagcomposition, and after the slag is dissolved, deoxygenation is carried out through a deoxidizing agent. Through the process, the content of sulphur in the molten steel is monitored, ferrous sulfide is used for adjusting the content of sulphur in the molten steel to the first target value, an RH furnace is used for refining LF furnace tapping, in the process, according to the content of the acid soluble aluminum of LF furnace tapping, selective aluminum feeding is carried out to adjust the content of the aluminum to the second target value, and after RH furnace refining is finished, calcium treatment is carried out. According to the process, the cleanliness of the molten steel can be improved, the nodulation problem during molten steel pouring can be avoided, and the stopper bar curve rising can be controlled.

In the invention, the gases present in a transfer chamber are pumped out by means of a primary pump that is driven by variable-speed drive means, that is connected in series with a turbomolecular secondary pump, and that is associated with gas monitoring means for monitoring one or more appropriate characteristic parameters of the pumped gases and for producing control signals acting on the drive means of the primary pump so as to adapt its pumping speed in order to avoid any condensation or solidification of the gases in the airlock or transfer chamber. It is thus possible to optimize the speed at which the pressure is lowered, and to reduce the pollution brought into the process chamber.

The present application relates to compositions comprising at least one siloxane and at least one superplasticizer based on polycarboxylate ethers or sulphonates of lignin, melamine or naphthalene or of resins thereof, and to the use of such compositions as or in building-product mixtures or building products, especially mortar mixtures or concrete mixtures. Preferably the siloxane is a branched siloxane containing at least one “T” unit and containing at least two different polyoxyalkylene moieties.

A double turbine exhaust duct design and an inline V turbine exhaust duct design that both eliminate the need for the standard T-piece in a turbine exhaust duct assembly, substantially reducing the steam-side pressure drop, minimizing the sub-cooling in the steam cycle (the temperature difference between ACC condensate temperature out and turbine steam temperature), thus improving the overall efficiency of the steam cycle plant heat rate.

A vacuum separation, transport and collection system for immiscible liquids includes a separator (12) for separating two immiscible liquids such as oil and a water-based coolant, and for directing the separated immiscible liquid into a holder (16). A collector (18) is secured through a vacuum line (20) with the holder (16) and a vacuum generator (22) applies a vacuum to the collector (18) and holder (16). A controller (28) controls the vacuum generator (22) to apply a vacuum to the collector (18) and the holder (16) for a predetermined vacuum duty cycle for periodically removing separated immiscible liquid (26) from the holder (16) into the collector (18). Contaminants in the immiscible liquid cannot degrade performance of the system because such contaminants do not contact the vacuum generator (22) or controller (28).

A ladle that can melt and freeze castable metal in a specific manner so that high quality liquid metal and metal alloys may be produced with minimum oxide and hydrogen content. Upon introduction of a quantity of molten metal into the ladle, staged heating and cooling of the molten metal promotes the liberation of previously-dissolved gases from the castable metal, resulting in significant decreases in as-cast porosity.

A chromatography system comprising a mixing circuit or a mixing chamber, a bubble trap, a concentration detector and one or more pumps, characterized in that the bubble trap has a permanent opening at its highest point is described herein. Furthermore, a chromatography system is described, characterized in that it contains two concentration detectors the first of which is located in the mixing circuit or the mixing chamber and the second is located downstream of the main pump.

A ladle that can melt and freeze castable metal in a specific manner so that high quality liquid metal and metal alloys may be produced with minimum oxide and hydrogen content. Upon introduction of a quantity of molten metal into the ladle, staged heating and cooling of the molten metal promotes the liberation of previously-dissolved gases from the castable metal, resulting in significant decreases in as-cast porosity.

The invention relates to the technical field of comprehensive utilization of a titanium concentrate with the high calcium and magnesium content, and particularly discloses a method for comprehensively using the titanium concentrate with the high calcium and magnesium content. The titanium concentrate with the high calcium and magnesium content, a reducing agent and a binder are mixed to be pressed into pellets; the pellets are fed into a vacuum carbon tube furnace for vacuum melt separation, wherein the vacuum melt separation is characterized in that constant temperature processing is carried out on the pellets for 30 min to 60 min at the control temperature ranging from 900 DEG C to 1100 DEG C and the vacuum degree ranging from 50 Pa to 100 Pa; and then the temperature is adjusted to range from 1450 DEG C to 1550 DEG C, constant temperature processing is carried out for 30 min to 45 min, solid left in the vacuum carbon tube furnace is collected, titanium dichloride slag is obtained, solid left in a condensation collector is collected, and ferrosilicon is obtained. By means of the method, the energy consumption is low, the technological process is short, the added value of products is high, and the grade of titanium slag can be improved to more than 90%.

The invention discloses a device which achieves pneumatic automatically-intermittent circulation by adopting gas generated in an anaerobic digester as internal power. The device is characterized in that a circulation loop is formed by feeding a gas collecting tank 11, a water level control gas valve 6, a gas collecting hood 12, a gas (water) inlet pipe 3, a reflux pipe 5 and a check valve 14 to the bottom of a digestion area 13 together. When the water level control gas valve 6 is closed, biogas continuously enters the gas collecting tank 11 by virtue of a gas seal 4, the gas collecting hood 12 and the gas (water) inlet pipe 3 to ensure that pressure in the gas collecting tank 11 is continuously increased, and a material liquid in the gas collecting tank 11 is forced to enter the bottom of the digestion area 13 by virtue of the reflux pipe 5 and the check valve 14. When the water level of the gas collecting tank 11 is lowered to the set water level, the water level control gas valve 6 is automatically opened, and the gas in the gas collecting tank is continuously exhausted; when the water level in the gas collecting tank 11 reaches the set low water level, the water level control gas valve 6 is automatically opened, the pressure in the gas collecting tank 11 is reduced, water in the upper part of the digestion area is absorbed into the gas collecting tank by virtue of the gas (water) inlet pipe 3, and when the water level in the gas collecting tank 11 reaches the set high water level, the water level control gas valve 6 is automatically closed. The gas collecting tank enters the next round of water discharge, gas exhaust and water absorption circulation so as to achieve internal power automatically-intermittent circulation.

Disclosed herein is an automatic analyzer that can eliminate the generation of air bubbles of dissolved gas in a liquid circulating in a thermostat bath enabling stable photometry.A degasifier for removing the dissolved gas in the liquid and a bypass passage for ensuring a flow rate required for temperature control of the circulating liquid are provided in a passage for temperature-controlled liquid circulating in the thermostat bath. The automatic analyzer can reduce the dissolved gas concentration to a level at which air bubbles of the dissolved gas in the liquid do not appear while maintaining a flow rate required for temperature control of the liquid circulating in the thermostat bath, thus eliminating air bubbles passing through the light flux during photometry and accordingly enabling stable photometry.

A pre-baking apparatus for heating a substrate upstream of a process tool is adapted to be connected to an EFEM (equipment front end module) and includes: a chamber which has a front face with multiple slots arranged in a height direction of the chamber, and which is divided into multiple compartments extending from the multiple slots, respectively, toward a rear end of the chamber for loading and unloading substrates; and a connecting frame for connecting the chamber to the process tool. The multiple compartments are separated from each other by a divider plate and provided with heaters for heating the multiple compartments, and each compartment has a gas injection port for blowing a hot inert gas over the substrate placed therein toward the slot.

The disclosure relates to a method for modifying the rheology of a polymer and a polymeric composition obtained by the method. The composition comprises at least one organic peroxide and water in emulsion form. The polymer may comprise a polyolefin. The method comprises extruding a molten polymer and the composition and removing volatile compounds from the molten polymer.