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38results about How to "Reduce residual oxygen" patented technology

Deep deoxidizing apparatus and application thereof

ActiveCN104694705AImprove deoxygenation capacityFast deoxygenationDeoxidizationMagnesium
The invention relates to a deep deoxidizing apparatus and an application thereof, and belongs to the technical field of chemical reaction deoxidization. The deep deoxidizing apparatus designed by the invention comprises a gas heating device (4), a No.1 deoxidizing channel (1), a No.2 deoxidizing channel (2) and a No.3 deoxidizing channel (3) which are sequentially communicated, wherein a No.1 deoxidizing agent is contained inside the No.1 deoxidizing passage (1), and the No.1 deoxidizing agent is selected from one of elemental metallic copper and copper-based alloy; a No.2 deoxidizing agent is contained inside the No.2 deoxidizing channel (2), and the No.2 deoxidizing agent is selected from one of elemental metallic titanium, sponge titanium and titanium-based alloy; a No.3 deoxidizing agent is contained inside the No.3 deoxidizing passage (3), and the No.3 deoxidizing agent is selected from one of elemental magnesium and magnesium-based alloy. The apparatus disclosed by the invention, when applied to deoxidizing treatment on Ar gas which is 99.999% in purity, can achieve a deoxidizing precision of 10-21ppm. The apparatus designed by the invention can carry out efficient deep deoxidization under normal pressure, and has the advantages of simple equipment, recycling use of the deoxidizing agents and the like.
Owner:CENT SOUTH UNIV

Racking machine with nitrogen charging device

ActiveCN104260923AImprove Nitrogen Filling EfficiencyNitrogen filling time is shortPackaging by pressurising/gasifyingNitrogen sourceEngineering
The invention discloses a racking machine with a nitrogen charging device. The racking machine is applied to pharmacy workshops and comprises a rotary capping machine and the nitrogen charging device corresponding to the rotary capping machine. The nitrogen charging device comprises an arc nitrogen seal part and a nitrogen charging semicircular ring, the arc nitrogen seal part is internally provided with a gas chamber communicated with two gas inlets I connected with a nitrogen source, the arc nitrogen seal part is uniformly provided with a plurality of gas outlets I communicated with the gas chamber, and a retaining curtain is arranged on an outer arc face of the arc nitrogen seal part; the nitrogen charging semicircular ring comprises a semicircular ring bent pipe section and a straight pipe section, the outer arc face of the semicircular ring bent pipe section is uniformly provided with a plurality of gas outlets II, and the nitrogen charging semicircular ring is communicated with the nitrogen source through a gas inlet I on the straight pipe section. Nitrogen is filled into bottles by two nitrogen charging systems, so that nitrogen charging efficiency is higher and nitrogen charging time is shorter; owing to the retaining curtain, remaining oxygen content in penicillin bottles is effectively reduced to less than one percent, and accordingly medicine storage time is prolonged.
Owner:NORTH CHINA PHARMA HEBEI HUAMIN PHARMA

Control method for inclusions in high-titanium steel, high-titanium steel and preparation method of high-titanium steel

ActiveCN114381574AReduce burning loss and oxidationHigh yieldProcess efficiency improvementSlagTitanium
The invention belongs to the technical field of iron and steel smelting, and relates to a control method of high-titanium steel inclusions, high-titanium steel and a preparation method of the high-titanium steel. The control method for the high-titanium steel inclusions comprises the steps that (1) after AOD blowing is finished, silicon-aluminum composite deoxidation is adopted; (2) aluminum shots, lime and fluorite are added into the molten steel after slagging-off, and argon is blown from the bottom for stirring; (3) titanium alloy blocks are added for titanium alloying, the adding amount of the titanium alloy blocks is calculated according to the yield of 65-80%, and argon bottom blowing continues after titanium alloying; (4) tapping and keeping argon oxygen decarburization (AOD) bottom blowing argon; and (5) after the component temperature of the molten steel and the components of the slag are adjusted through the LF, pure calcium wires or silicon-calcium blocks are fed. According to the control method for the high-titanium steel inclusions, the defects of nozzle nodulation, 'fish formation 'of a continuous casting crystallizer and inclusion on the surface of a product or failure in flaw detection caused by precipitation of a large amount of TiN are overcome.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD

Bortezomib freeze-dried powder injection and preparation process thereof

The invention relates to a preparation process of freeze-dried powder injection containing bortezomib. The freeze-dried powder injection contains bortezomib and mannite. By controlling the oxygen content in a solution during preparation and a freeze-drying process, the stability of the bortezomib freeze-dried powder injection is greatly increased, and the re-dissolution time of the freeze-dried powder injection is shortened. The process provided by the invention is simple and easy, and is suitable for industrial production.
Owner:JIANGSU HANSOH PHARMA CO LTD

Low-silicon medium-carbon gear steel suitable for cold forging machining and manufacturing method thereof

ActiveCN112981233AInhibits the tendency to work hardeningStrong deoxygenation abilityFurnace typesHeat treatment furnacesGear wheelPearlite
The invention relates to low-silicon medium-carbon gear steel suitable for cold forging machining and a manufacturing method thereof. The steel comprises, by mass percent, 0.35-0.45% of C, smaller than or equal to 0.08% of Si, 0.30%-0.60% of Mn, 0.20-0.50% of Cr, smaller than or equal to 0.020% of P, 0.010-0.040% of S, smaller than or equal to 0.10% of Cu, smaller than or equal to 0.05% of Ni, smaller than or equal to 0.05% of Mo, smaller than or equal to 0.050% of Al, larger than or equal to 0.005% of N, 0.0005-0.0035% of B, smaller than or equal to 0.010% of Ti, smaller than or equal to 0.0020% of [O], smaller than or equal to 0.15% of (Cu+Ni+Mo) and the balance Fe and inevitable impurity elements Round steel with the specification being phi 45 mm to phi 90 mm is formed, and the size precision is smaller than or equal to +/-0.15 mm. According to GB/T 4162-2008, ultrasonic flaw detection on the interior of the round steel meets the A-level requirement. The outer layer of the section of the round steel is a partial decarburized layer, the depth of the partial decarburized layer is smaller than or equal to 0.5% d of the nominal diameter of the round steel, the core part is a matrix structure, the matrix structure is ferrite and spheroidized pearlite, and the spheroidization rate reaches 90% or above.
Owner:JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD

A large infusion liquid filling nitrogen filling stopper press machine

The invention discloses a large infusion liquid filling nitrogen-filling stoppering machine, which comprises a frame and a bottle-feeding station, a filling station, a nitrogen-filling station after filling, and a corking station arranged on the frame and connected in sequence. The station and the bottle outlet station, the filling station and the nitrogen filling station after filling, the nitrogen filling station after filling and the corking station are all connected by a transition station. Among them, the bottle entry station and the transition station Each position is equipped with a nitrogen protection device for injecting nitrogen into the bottle body and mouth of the glass infusion bottle and forming a nitrogen coverage area at the mouth of the bottle; it can be seen that by adding a nitrogen protection device, the infusion bottle can be placed between each station. It is always in an environment full of nitrogen when traveling between spaces, which can effectively reduce the amount of residual oxygen in the bottle and make it meet the general control requirements. It does not need to seal and repeatedly vacuumize the infusion bottle. The cost is low and the production speed is not affected. It matches the production speed of other equipment on the production line, so it has excellent cost performance.
Owner:长沙汇一制药机械有限公司

Production method for reducing burning loss in Cr-Mo steel blank continuous furnace

The invention discloses a production method for reducing burning loss in a Cr-Mo blank continuous heating furnace. The Cr-Mo steel alloy elements and the mass percentage meet the requirements of GB/T 713-2014. The method mainly comprises the steps of controlling the distances between a fuel spraying nozzle and an air nozzle in the furnace and a blank; controlling the lengths and the temperatures of a preheating section, a heating section and a soaking section in the continuous heating furnace; controlling the air-fuel ratio in the furnace to be 0.95-1.1, wherein the air-fuel ratio of the heating section is slightly larger than that of the soaking section; controlling the micro-positive pressure in the furnace, wherein the pressure is 0.3-0.5 MPa; and controlling the blank to enter the furnace while the blank is hot, wherein the temperature of the blank entering the furnace is 200-300 DEG C. According to a Cr-Mo steel plate produced through the method, the burning loss rate is controlled to be low during blank heating and is controlled to be 0.02-0.05%; the thickness of an iron sheet on the surface of the blank is small and is controlled to be 1-3 mm; and the surface quality of the rolled steel plate is good, and the grinding rate of the steel plate is 2-10%.
Owner:WUYANG IRON & STEEL

Aluminum foil container structure for food modified atmosphere packaging

The invention discloses an aluminum foil container structure for food modified atmosphere packaging. The aluminum foil container structure comprises an aluminum foil box, the aluminum foil box is composed of an aluminum foil base plate and an aluminum foil circumferential side plate, one end of the aluminum foil circumferential side plate is provided with a smooth opening, the aluminum foil circumferential side plate is arranged in an inclined manner relative to the aluminum foil base plate, and the area of an opening plane of the aluminum foil circumferential side plate is larger than the area of the aluminum foil base plate; the aluminum foil base plate is provided with first reinforcing ribs inwards protruding towards the interior of the aluminum foil box, the aluminum foil circumferential side plate is provided with second reinforcing ribs inwards protruding towards the interior of the aluminum foil box, and the first reinforcing ribs and the second reinforcing ribs are communicated into a whole. The reinforcing ribs are connected into a whole, the rigidity of the box is improved, and meanwhile, the material thickness can be reduced; during air exchanger, air in most space isolated by the reinforcing ribs and located at the bottom of the container can be pumped out, the oxygen remaining rate is reduced to the maximum degree, and the food refreshing time is greatly prolonged. During food baking, heating is more even, and foods tightly attached to the box bottom cannot be burned in baking. In addition, an aluminum foil material can be repeatedly used and can be melted into an aluminum pig at the high temperature, and therefore environment protecting is achieved.
Owner:NINGBO TIMES ALUMINUM FOIL MFG

Preparation method of mixed sugar electrolyte injection and mixed sugar electrolyte injection prepared by preparation method

The invention provides a preparation method of a mixed sugar electrolyte injection and the mixed sugar electrolyte injection prepared by the preparation method, which relate to the technical field of medical injections. According to the preparation method, the mixed sugar, the electrolyte component, the water and the pH regulator are used as raw materials to blend the solution. The preparation method comprises the following steps of firstly, dissolving mixed sugar and electrolyte components in part of water to obtain a solution A, adding a pH regulator into the solution A, adding the balance of water, and uniformly mixing to obtain a solution B, and sequentially carrying out refined filtration, filling and sterilization on the solution B to obtain the mixed sugar electrolyte injection. According to the preparation method, high-purity nitrogen subjected to sterilization and filtration is introduced in the solution blending process, and the residual oxygen content of the solution in the blending process is controlled to be 0.01-0.2 mg/L, so that the residual oxygen content in the solution is effectively reduced, degradation of related substances in the blended solution is greatly reduced, the product is purer, and the product quality is improved.
Owner:CHINA OTSUKA PHARM CO LTD

A High-speed Vacuumizing, Filling and Protecting Gas-Sealing Can Production Line

The invention relates to the technical field of food packaging, in particular to a high-speed vacuum filling and sealing can production line. It includes a high-speed pre-sealing machine connected by a conveyor chain, a high-speed vacuum filling and protective gas device, and a high-speed solid sealing machine. The high-speed pre-sealing machine has a seaming frame, an active rotation mechanism, a pressure wheel transmission mechanism, a lifting mechanism, a can feeding mechanism, a can lid feeding driving mechanism, a lower lid mechanism, a lid dropping mechanism, a can lifting mechanism, and a pressure head. Mechanism, out-of-tank mechanism, driving mechanism. The invention has the advantages of compact structure, small occupied area, high sealing and vacuuming efficiency, and adapts to the requirements of modern high-speed production. The pre-sealing machine and the solid-sealing machine only need one motor to drive the active rotating mechanism to drive the whole device to run together. The invention can adapt to various tank heights. To adjust the height, the vertical movement of the pressure head part and the pressure wheel rotating part can be completed through the forward and reverse rotation of the lifting motor, so as to adjust the distance between the can lifting platform and the pressure head and pressure wheel. Minimize manual adjustments.
Owner:CHANGZHOU JOYO AUTOMATION EQUIP CO LTD

A deep deoxidation device and its application

ActiveCN104694705BImprove deoxygenation capacityFast deoxygenationDispersed particle separationChemical reactionEngineering
The invention relates to a deep deoxidizing apparatus and an application thereof, and belongs to the technical field of chemical reaction deoxidization. The deep deoxidizing apparatus designed by the invention comprises a gas heating device (4), a No.1 deoxidizing channel (1), a No.2 deoxidizing channel (2) and a No.3 deoxidizing channel (3) which are sequentially communicated, wherein a No.1 deoxidizing agent is contained inside the No.1 deoxidizing passage (1), and the No.1 deoxidizing agent is selected from one of elemental metallic copper and copper-based alloy; a No.2 deoxidizing agent is contained inside the No.2 deoxidizing channel (2), and the No.2 deoxidizing agent is selected from one of elemental metallic titanium, sponge titanium and titanium-based alloy; a No.3 deoxidizing agent is contained inside the No.3 deoxidizing passage (3), and the No.3 deoxidizing agent is selected from one of elemental magnesium and magnesium-based alloy. The apparatus disclosed by the invention, when applied to deoxidizing treatment on Ar gas which is 99.999% in purity, can achieve a deoxidizing precision of 10-21ppm. The apparatus designed by the invention can carry out efficient deep deoxidization under normal pressure, and has the advantages of simple equipment, recycling use of the deoxidizing agents and the like.
Owner:CENT SOUTH UNIV

Method for controlling amount of remaining oxygen in powder injection preparation

The invention discloses a method for controlling the amount of remaining oxygen in a powder injection preparation, and the method comprises the steps that nitrogen from a liquid nitrogen storage tank or a nitrogen generator enters a filter through a conveying tube to be purified; the nitrogen purified in the previous step is filled in a powder injection package bottle by a nitrogen charging head; an included angle between 15 degrees to 75 degrees is formed between a gas outlet tube and a wall of the powder injection package bottle in the nitrogen charging process; and the bottle is sealed by a gland after being filled with the nitrogen. According to the method, as the included angle formed between the gas outlet tube of the nitrogen charging head and the wall of the powder injection package bottle is controlled, the nitrogen is blown out at a certain angle; the nitrogen is well charged into a container; furthermore, the nitrogen gas does not blow a powdery drug at the bottom of the bottle directly; the powdery drug is not blown out of the bottle; the method can reduce the amount of the remaining oxygen in the bottle significantly; the amount of the remaining oxygen is controlled to be less than 1.2%; and the stability of the drug is improved effectively.
Owner:GUANGZHOU BAIYUNSHAN PHARMA HLDG CO LTD BAIYUNSHAN PHARMA GENERAL FACTORY

High-speed vacuumizing and protective gas filling can sealing production line

The invention relates to the technical field of food packaging, in particular to a high-speed vacuumizing and protective gas filling can sealing production line. The production line comprises a high-speed can pre-sealing machine, a high-speed vacuumizing and protective gas filling device and a high-speed solid can sealing machine which are connected through a conveying chain. The high-speed can pre-sealing machine is provided with a can sealing rack, a driving rotation mechanism, a pressing wheel transmission mechanism, a lifting mechanism, a can feeding mechanism, a can cover conveying drive mechanism, a cover discharging mechanism, a cover falling mechanism, a can hoisting and lifting mechanism, a pressing head mechanism, a can discharging mechanism and a drive mechanism. The production line is compact in structure, small in occupied area, high in can sealing and vacuumizing efficiency and capable of meeting the requirement of modern high-speed production. The can pre-sealing machine and the solid can sealing machine only need one motor to drive the driving rotation mechanism so as to drive the whole device to operate together. The production line can adapt to various can heights. The height is adjusted, and the vertical movement of a pressing head part and a pressing wheel rotating part can be completed through the forward and reverse rotation of a lifting motor, so that the distance between a can hoisting and lifting platform and a pressing head and a pressing wheel is adjusted. And manual adjustment is reduced to the greatest extent.
Owner:CHANGZHOU JOYO AUTOMATION EQUIP CO LTD
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