CN102581277A - Atomized gas supply system for spray forming generation - Google Patents
Atomized gas supply system for spray forming generation Download PDFInfo
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- CN102581277A CN102581277A CN2012100382219A CN201210038221A CN102581277A CN 102581277 A CN102581277 A CN 102581277A CN 2012100382219 A CN2012100382219 A CN 2012100382219A CN 201210038221 A CN201210038221 A CN 201210038221A CN 102581277 A CN102581277 A CN 102581277A
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Abstract
The invention relates to manufacturing equipment of a metal material and in particular to an atomized gas supply system for spray forming generation, which is used in equipment for generating the metal material in a spray forming manner. The atomized gas supply system comprises a liquid nitrogen tank which is used as a gas source; an outlet of the liquid nitrogen tank is sequentially connected with a gasifying device, a pressure reducing and pressure maintaining valve and a buffer gas tank; an outlet of the buffer gas tank is connected with gas utilization devices through a plurality of branch gas paths; the branch gas paths pass through a temperature control device; secondary pressure-reducing valves are arranged on parts of the branch gas paths; and primary pressure-reducing valves are arranged on the another branch gas paths. With the adoption of the atomized gas supply system provided by the invention, concentrated gas supply of a plurality of spray forming assembly lines can be realized for large-scale volume production; the stability of the gas pressure is improved; the uniformity of the technique parameters and the stability of the technique process can be ensured; the important metal atomized gas can be adjusted online; the automation degree of the system is improved; and the industrial production requirements of the spray forming can be met.
Description
Technical field
The present invention relates to the manufacturing equipment of metal material, be specifically related to a kind of at the atomization gas feed system of producing the reaction-injection moulding production of using in the equipment of metal material with the reaction-injection moulding method.
Background technology
Spray deposition processing is because its rapid solidification characteristics, has great technical advantage at the metal material of high alloy content aspect preparing.The inertia atomization gas is one of reaction-injection moulding main consumption of producing, and is used for metal bath is broken and drive its quick flight, rapid solidification in this process.Reaction-injection moulding belongs to semi-solid-state shaping, and its semi-solidification interval is positioned at a small range, and is comparatively responsive to technological parameter; Wherein, atomization gas is one of key process parameter, and not only the pressure of atomization gas, flow atomize and solidify metal bath and have considerable influence; Gas temperature also can make the semisolid sedimentary condition of metallics change; Gas temperature and environment temperature basically identical, therefore, the Various Seasonal environment temperature can influence depositing operation stability.
For the reaction-injection moulding suitability for industrialized production, need to guarantee stable gas supply, reduce originally with pneumatolytic, be convenient to realize automatic control, and satisfy the technological requirement at the different usefulness gas of reaction-injection moulding equipment position.
Therefore, the atomization gas feed system is the important component part of reaction-injection moulding process units, need provide continous-stable, temperature constant, controlled relatively atomization gas for reaction-injection moulding production.
Summary of the invention
Technical problem to be solved by this invention is, the atomization gas feed system that provides a kind of reaction-injection moulding to produce, make its can realize continous-stable, pressure online adjustable, can control automatically, atomization gas that temperature is constant relatively and the supply of cooling protection gas.
The atomization gas feed system of reaction-injection moulding production of the present invention includes the liquid nitrogen container as source of the gas; The outlet of liquid nitrogen container is connected with gasifier, decompression venting valve, buffering gas tank in turn, and the outlet of buffering gas tank is connected with device of air through many branch's gas circuits with each; Said each branch's gas circuit is through a temperature control equipment; The said branch of part gas circuit is provided with the two-stage decompression valve, and other branch's gas circuits are provided with the one-level pressure-reducing valve.
The pressure-reducing valve that is positioned on branch's gas circuit that the one-level pressure-reducing valve is set is the electronic control pressure reducing valve.
Said temperature control equipment includes a water tank; Pass through in the water of said branch gas circuit from water tank; Be provided with electric heater unit in the water tank; Water tank is provided with the discharge outlet by the control of draining electric control valve, and the water tank top also is provided with the cold shower device by the control of cold water electric control valve, also is distributed with cooling-water temperature sensor in the water tank.
Be coated with adiabator layer on the said tank outer wall.
In said each branch's gas circuit flow sensor, pressure sensor, temperature sensor are set, are used to monitor gas flow, pressure and temperature parameter.
Good effect of the present invention is embodied in: 1, adopt liquid nitrogen container central gas supply mode that sufficient source of the gas is provided, guaranteed ordinary production, simultaneously for extensive, mass production, can realize the central gas supply of many reaction-injection moulding production lines; 2, in air supply system, be provided with the buffering gas tank, improved the stability of gas pressure; 3, gas temperature control apparatus can obtain the constant relatively atomization gas of temperature, has eliminated the influence of atomization gas temperature to metal atomization, rapid solidification effect, has guaranteed the uniformity of technological parameter and the stability of technical process; 4, according to technological process and different parts use the gas requirement, set up the gas circuit that can independently control separately, for the metal atomization gas of key, can carry out online adjusting, improve the automaticity of system, satisfied reaction-injection moulding suitability for industrialized production needs.
Description of drawings
Fig. 1 is a systematic schematic diagram of the present invention.
The specific embodiment
As shown in the figure; The atomization gas feed system of this reaction-injection moulding production includes the liquid nitrogen container 1 as source of the gas; The outlet of liquid nitrogen container is connected with gasifier 2, decompression venting valve 3, buffering gas tank 4 in turn, and the outlet of buffering gas tank is connected with device of air through many branch's gas circuits 5 with each; Each branch's gas circuit is through a temperature control equipment 6; Part branch gas circuit is provided with the two-stage decompression valve, and other branch's gas circuits are provided with the one-level pressure-reducing valve.The pressure-reducing valve that is positioned on branch's gas circuit that the one-level pressure-reducing valve is set is an electronic control pressure reducing valve 7.On each branch's gas circuit flow sensor, pressure sensor, temperature sensor are set, are used to monitor gas flow, pressure and temperature parameter.
In the system work process of the embodiment of the invention, the liquid nitrogen in the liquid nitrogen container 1 is gasificated as nitrogen through gasifier 2, and nitrogen temperature is an environment temperature, and its maximum pressure is 2.5MPa, and said liquid nitrogen container 1 volume capacity is 30 cubic metres.Get into buffering gas tank 4 through decompression venting valve 3 decompressions for 1.6MPa, the volume capacity of buffering gas tank 4 is 1 cubic metre.Gas path pipe latus rectum from liquid nitrogen container 1 to buffering gas tank 4 is 125mm.
With twin-jet nozzle spray forming ingot production equipment is example; The gas circuit of coming out from cushion gas jar 4 is divided into 6 branch gas circuits, is respectively: inner nozzle secondary atomizing gas circuit A, outer nozzle secondary atomizing gas circuit B, inner nozzle one-level atomizing gas circuit C, outer nozzle one-level atomizing gas circuit D, cooling gas circuit E, protection gas circuit F.
The atmospheric pressure scope of using of gas circuit C, D, E, F is 0.1-0.4Mpa; Directly reducing pressure from 1.6MPa is 0.1-0.4Mpa, and pressure reduction is excessive, can bring very big load to pressure-reducing valve; The present invention adopts two-stage decompression; Being 0.6Mpa by the one-level pressure-reducing valve from the 1.6MPa decompression at first, is the force value of 0.1-0.4Mpa scope by the second depressurized valve from the 0.6MPa decompression then, is pressure-reducing valve adjustment foundation with the Pressure gauge show value.Two-stage decompression method of the present invention can guarantee pressure stability, prevents pipeline vibration, improve the pressure-reducing valve working life.
Inner nozzle secondary atomizing gas circuit A and outer nozzle secondary atomizing gas circuit B are that metal atomization provides working gas, are most important two gas circuits, not only require pressure stability, also need have the ability of carrying out on-line automatic adjusting according to production technology.The present invention adopts electronic control pressure reducing valve 7, can carry out online adjusting to pressure, and actual pressure is controlled to be from the force value of central control room or instrument setting.
The pipeline drift diameter of each branch's gas circuit is 40mm, and its unlatching is carried out independent control by electromagnetic pilot-operated pneumatic ball valve respectively, and is controlled automatically by control program.
In the embodiment of the invention; Temperature control equipment 6 includes a water tank 61; Pass through in the water of branch's gas circuit 5 from water tank, be provided with electric heater unit 62 in the water tank, water tank is provided with the discharge outlet by 63 controls of draining electric control valve; The water tank top also is provided with the cold shower device 65 by 64 controls of cold water electric control valve, also is distributed with cooling-water temperature sensor in the water tank.Be coated with adiabator layer 66 on the tank outer wall.
Electrical heating and cold water cooling Combination Control are adopted in water temperature control in the temperature control equipment 6; With gas temperature control desired value 20 degree is example explanation water temperature control mode: when environment temperature is spent above 20; The water tank water temperature is mainly through cooling water temperature, the unlatching through detecting water temperature control cold water electric control valve 64, draining electric control valve 63 or close; Be lower than 20 when spending in environment temperature, the water tank water temperature mainly heats up through electrical heating, and electric heater unit 62 power adopt controllable silicon to regulate, and for reducing the problem that the electrical heating adjustment lags behind, is aided with cold water electric control valve 64,63 controls of draining electric control valve.Through the water inlet of the cold shower device, can improve each several part water temperature uniformity.
Claims (5)
1. the atomization gas feed system produced of a reaction-injection moulding; It is characterized in that: it includes the liquid nitrogen container (1) as source of the gas; The outlet of liquid nitrogen container is connected with gasifier (2), decompression venting valve (3), buffering gas tank (4) in turn, and the outlet of buffering gas tank is connected with device of air through many branch's gas circuits (5) with each; Each branch's gas circuit is through a temperature control equipment (6); Part branch gas circuit is provided with the two-stage decompression valve, and other branch's gas circuits are provided with the one-level pressure-reducing valve.
2. the atomization gas feed system that reaction-injection moulding according to claim 1 is produced, it is characterized in that: the pressure-reducing valve that is positioned on branch's gas circuit that the one-level pressure-reducing valve is set is electronic control pressure reducing valve (7).
3. the atomization gas feed system that reaction-injection moulding according to claim 1 is produced is characterized in that: on each branch's gas circuit flow sensor, pressure sensor, temperature sensor are set, are used to monitor gas flow, pressure and temperature parameter.
4. the atomization gas feed system of producing according to the described reaction-injection moulding of one of claim 1-3; It is characterized in that: temperature control equipment (6) includes a water tank (61); Pass through in the water of branch's gas circuit (5) from water tank; Be provided with electric heater unit (62) in the water tank; Water tank is provided with the discharge outlet by draining electric control valve (63) control, and the water tank top also is provided with the cold shower device (65) by cold water electric control valve (64) control, also is distributed with cooling-water temperature sensor in the water tank.
5. the atomization gas feed system that reaction-injection moulding according to claim 6 is produced is characterized in that: be coated with adiabator layer (66) on the tank outer wall.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210038221.9A CN102581277B (en) | 2012-02-21 | 2012-02-21 | Atomized gas supply system for spray forming generation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210038221.9A CN102581277B (en) | 2012-02-21 | 2012-02-21 | Atomized gas supply system for spray forming generation |
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| CN102581277A true CN102581277A (en) | 2012-07-18 |
| CN102581277B CN102581277B (en) | 2014-04-02 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5522368A (en) * | 1978-08-07 | 1980-02-18 | Trinity Ind Corp | Coating apparatus |
| US5096120A (en) * | 1988-06-24 | 1992-03-17 | Behr Industrieanlagen Gmbh & Co. | Process and apparatus to guide a spray material to a plurality of spraying statins |
| CN2492766Y (en) * | 2001-07-18 | 2002-05-22 | 青岛化工设计院 | Liquefied natural gas gasifying and supplying plant |
| CN101096010A (en) * | 2006-06-30 | 2008-01-02 | 上海理工大学 | Method for continuously preparing spray strengthened aqua compound and device thereof |
| CN101446381A (en) * | 2007-11-27 | 2009-06-03 | 贵阳铝镁设计研究院 | Method for storing and gasifying liquefied chlorine gas and complete equipments thereof |
| CN201284918Y (en) * | 2008-10-22 | 2009-08-05 | 苏州市金宏气体有限公司 | Low temperature gas reclamation plant |
| CN202639330U (en) * | 2012-02-21 | 2013-01-02 | 江苏豪然喷射成形合金有限公司 | Atomizing gas supply system for spray forming production |
-
2012
- 2012-02-21 CN CN201210038221.9A patent/CN102581277B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5522368A (en) * | 1978-08-07 | 1980-02-18 | Trinity Ind Corp | Coating apparatus |
| US5096120A (en) * | 1988-06-24 | 1992-03-17 | Behr Industrieanlagen Gmbh & Co. | Process and apparatus to guide a spray material to a plurality of spraying statins |
| CN2492766Y (en) * | 2001-07-18 | 2002-05-22 | 青岛化工设计院 | Liquefied natural gas gasifying and supplying plant |
| CN101096010A (en) * | 2006-06-30 | 2008-01-02 | 上海理工大学 | Method for continuously preparing spray strengthened aqua compound and device thereof |
| CN101446381A (en) * | 2007-11-27 | 2009-06-03 | 贵阳铝镁设计研究院 | Method for storing and gasifying liquefied chlorine gas and complete equipments thereof |
| CN201284918Y (en) * | 2008-10-22 | 2009-08-05 | 苏州市金宏气体有限公司 | Low temperature gas reclamation plant |
| CN202639330U (en) * | 2012-02-21 | 2013-01-02 | 江苏豪然喷射成形合金有限公司 | Atomizing gas supply system for spray forming production |
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| CN102581277B (en) | 2014-04-02 |
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