CN101934299A - Continuous extrusion equipment using atomization cooling technology and cooling method - Google Patents
Continuous extrusion equipment using atomization cooling technology and cooling method Download PDFInfo
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- CN101934299A CN101934299A CN 201010259569 CN201010259569A CN101934299A CN 101934299 A CN101934299 A CN 101934299A CN 201010259569 CN201010259569 CN 201010259569 CN 201010259569 A CN201010259569 A CN 201010259569A CN 101934299 A CN101934299 A CN 101934299A
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Abstract
The invention discloses continuous extrusion equipment using an atomization cooling technology, which comprises a stand, a main shaft, an extrusion wheel, a compacting wheel, a boot seat, a cavity body, a stop block, a bush and an atomization device, wherein the atomization device comprises three atomization nozzles, a liquid pipeline and a gas pipeline; the liquid pipeline and the gas pipeline are connected with the atomization nozzles; the atomization nozzles are installed on the soot seat and the stand; the liquid pipeline is provided with a liquid flow electric regulating valve, a liquid pressure gauge, a liquid filter and a liquid stop valve; and the gas pipeline is provided with a gas pressure electric regulating valve, a gas pressure gauge, an air filter and an air stop valve. The continuous extrusion equipment using the atomization cooling technology has simple and reasonable structure, is used for cooling the extrusion wheel, the stop block and other components in an atomization atmosphere, avoids temperature stress damage and temperature fatigue cracking caused by uneven surface cooling, is also used for cooling overflow materials, and prolongs the service life of high-consumption deformation tools such as the extrusion wheel, the stop block and the like.
Description
Technical field
The present invention relates to technical field of nonferrous metal processing, relate in particular to a kind of continuous extrusion apparatus and cooling means.
Background technology
Continuously extruded technology is utilized the motion of frictional force drives blank, and the heat by means of friction and flow of metal generation makes blank temperature reach deformation temperature, and under the effect of friction drive plastic deformation takes place.The moulds of industrial equipment of the continuous extrusion apparatus that directly contacts with metal in the flow of metal process need tolerate very high temperature, and guarantee enough intensity and hardness.Therefore, cooling technology is an important content of continuously extruded technology.
At present, the cooling means that adopts in the continuous extrusion apparatus mainly contains two kinds: a kind of is interior cooling, main application is main shaft and squeegee roller inside, cooling medium is the water that has corrosion inhibiter, by the cooling duct equipment component is cooled off, system belongs to closed state, and cooling medium can recycle.Another is outer cooling, promptly directly cools off at squeegee roller and material blocking block surface, and cooling medium adopts water or liquid nitrogen.Interior cooling is the cooling provision that must take in the continuous extrusion apparatus production process, but owing to be subjected to the restriction of element size and manufacturing process, and consider and analysis cooling effect cost performance that this cooling means is difficult to be innovated and improve.When continuous extrusion production copper and alloy product or heavy in section copper products, owing to be extruded the big drag effects of high resistance of deformation of metal or big ratio, flow of metal heat sharply increases, and the also corresponding raising of the temperature that warp tool need tolerate just needs to use external cooling under this kind condition.The outer cooling method of tradition mainly contains following defective: adopt the water spray cooling, if cooling water flow is excessive, then have the residual extrusion chamber of bringing into, cause the extruded product defective, in order to remove residual cooling water, need to use gases at high pressure to dry up in addition; Secondly, because it is relatively large that specific heat of water holds,, also can cause the part of warp tool to lower the temperature significantly even a small amount of cooling water directly is sprayed onto squeegee roller and material blocking block surface, the increase of the inhomogeneous and high and low temperature alternative temperature difference of temperature causes material blocking block stress rupture and squeegee roller thermal fatigue cracking.If employing cooled with liquid nitrogen, liquid nitrogen is progressively gasification in the flow process in pipeline, becomes cryogenic gas, and the specific heats of gases are held little, cooling evenly, cooling back noresidue, the cooling effect ideal, but liquid nitrogen belongs to dangerous material, transportation and preservation need to increase cost, most importantly liquid nitrogen costs an arm and a leg, and Unit Weight extruded product cost improves more than 30% in the use, has increased production cost of products greatly.
Summary of the invention
In order to overcome the deficiency of traditional continuous extrusion process of production China and foreign countries type of cooling, make continuous extrusion apparatus when worked copper and alloy or heavy in section copper products, can in time take away the heat that increases generation because of deformation drag, reduce the temperature of warp tool, prolonging on the compression tool basis in service life, enhance productivity and control production cost, the invention provides a kind of continuous extrusion apparatus and cooling means of using the atomizing cooling technology.
The technical scheme that the present invention is adopted for achieving the above object is: a kind of continuous extrusion apparatus that uses the atomizing cooling technology, comprise frame, main shaft, squeegee roller, compact wheel, the boots seat, cavity, material blocking block and axle sleeve, squeegee roller is installed on the main shaft, compact wheel is installed on the squeegee roller top, cavity is installed in the boots seat, material blocking block is installed on the cavity, axle sleeve is installed on the main shaft outside, it is characterized in that: also comprise atomising device, atomising device comprises atomizer, fluid pipeline and gas pipeline, fluid pipeline is connected with atomizer with gas pipeline, the fluid flow electric control valve is installed on the fluid pipeline, the fluid pressure table, liquid filter, the liquid stop valve, each parts connects by pipeline, the gas pressure electric control valve is installed on the gas pipeline, gas gauge, air cleaner, air cutoff valve, each parts connects by pipeline.
Described continuous extrusion apparatus is equipped with three atomizers.
One of them is installed on described atomizer on the boots seat, and two other is installed on the frame.
A kind of cooling means of using the atomizing cooling technology is characterized in that: may further comprise the steps:
A. measure squeegee roller tach signal and material blocking block temperature signal;
B. squeegee roller tach signal of Ce Lianging and material blocking block temperature signal input control device carry out calculation process, the output control signal;
C. control signal control is positioned at the gas pressure electric control valve and the fluid flow electric control valve that is positioned on the atomising device fluid passage on the atomising device gas passage, adjustments of gas pressure and fluid flow, thereby the mixed proportion of regulating compressed air and cooling water in the cooling medium;
D. compressed air in the gas passage and the cooling water in the fluid passage enter atomizer simultaneously, through being ejected into after the atomizing of atomizer on the high-temperature component that needs cooling.
Compressed air in the described gas passage filtered through pneumatic filter before entering atomizer, detected gas pressure by gas gauge, can use air cutoff valve to open and close compressed air when gas pressure is not in normal range (NR); Cooling water in the described fluid passage filtered through liquid filter before entering atomizer, by fluid pressure table tracer liquid pressure, can use the liquid stop valve to open and close cooling water when fluid pressure is not in normal range (NR).
Described control device adopts PLC and industrial control computer.
Measure the squeegee roller tach signal and adopt revolution counter, speed-testing engine or encoder.
The material blocking block temperature adopts thermocouple measurement.
The continuous extrusion apparatus and the cooling means of use atomizing cooling technology of the present invention make continuous extrusion apparatus when worked copper and alloy or heavy in section copper products, the atomizing atmosphere in to squeegee roller, material blocking block, axle sleeve, the boots seat, bearing block, column, parts such as frame cool off, also make simultaneously flash obtain cooling, can in time take away the heat that each parts produces, reduce the temperature of warp tool, and temperature-fall period is soft, can satisfy the reasonable control of squeegee roller and material blocking block temperature in the long-time continuous extrusion process of production, guarantee that the stable of continuous extrusion process of production carries out, the atomizing cooling medium is in cooling, can be implemented in and enter the preceding noresidue of compact wheel, do not influence the quality of Continuous Extrusion Products.Avoided the inhomogeneous temperature stress that causes of surface cool to destroy and the temperature fatigue cracking, enhanced productivity simultaneously and control production cost the service life of high flow rate warp tools such as raising squeegee roller, material blocking block, the device structure advantages of simple, easy to use.
Description of drawings
Fig. 1 is to use the side view of the continuous extrusion apparatus of atomizing cooling technology;
Fig. 2 is to use the front view of the continuous extrusion apparatus of atomizing cooling technology.
The specific embodiment
A kind of continuous extrusion apparatus that uses the atomizing cooling technology as depicted in figs. 1 and 2, squeegee roller 4 is installed on the main shaft 3, axle sleeve 19 is installed on main shaft 3 outsides, the extruding race is arranged on the squeegee roller 4, adhere to the metal that is extruded in squeegee roller 4 grooves in the normal productive process, and be synchronized with the movement with squeegee roller 4 and main shaft 3, compact wheel 5 is installed on squeegee roller 4 tops, cavity 7 has the circular arc sealing surface, cavity 7 is installed in the boots seat 6, material blocking block 8 is installed on the cavity 7, material blocking block 8 outstanding positions are deep in squeegee roller 4 grooves, material blocking block 8 and cavity 7 all have sealing surface and squeegee roller 4 surfaces and groove face to keep appropriate gap, the atomizing cooling device comprises fluid pipeline, gas pipeline and atomizer 2, gas pressure electric control valve 14 is installed on the gas pipeline, gas gauge 15, air cleaner 18, air cutoff valve 17 components and parts such as grade, fluid flow electric control valve 9 is installed on the fluid pipeline, fluid pressure table 10, liquid filter 11, liquid stop valve 12 waits each components and parts, pass through seamless steel pipe between each components and parts, stainless steel flexible hose is connected with pipelines such as rubber hose, three atomizers 2 are installed on the continuous extrusion apparatus, one of them atomizer 2 is installed on the boots seat 6, two other atomizer 2 is installed on the frame 1, atomizer 2 is aimed at squeegee roller 4 grooves and material blocking block 8 respectively, and squeegee roller 4, boots seat 6, the space that frame 1 forms.
After being extruded 5 pressure rollings of metal process compact wheel, be embedded in the race of squeegee roller 4, and under the frictional force drives of rotation squeegee roller 4, turn to material blocking block 8 places, because rubbing action raises metal temperature, be accompanied by the driving of frictional force, be extruded metal and deform, and be extruded metal and in deformation process, produce distortion heat, self temperature is further raise, finally be extruded metal and plastic deformation take place under the state of HTHP up to extruding the formation extruded product from the mould mouth.When metal was extruded processing, squeegee roller 4, material blocking block 8, cavity 7, boots seat 6, axle sleeve 19, frame 1 etc. all were heated gradually.
Pass through encoder, revolution counter or speed-testing engine are measured the rotating speed of squeegee roller 4, the temperature of the temperature of squeegee roller 4 and material blocking block 8 is by thermocouple measurement, through AD conversion output temperature signal, detected speed and temperature signal are real-time transmitted to Programmable Logic Controller PLC and industrial control computer, handle by sequential operation, obtain being extruded alloy material at difference, the different product specification, squeegee roller 4 rotating speeds and material blocking block 8 temperature controlling range etc. are regulated and control gas pressure electric control valve 14 and fluid flow electric control valve 9 in different production processes, the mixed proportion of control compressed air and cooling water, acquisition has the atomizing cooling medium of different liquid gas mixabilities, thereby obtains the atomizing cooling effect of expectation.Compressed air from the compressed air inlet 16 enter the atomizing cooling device gas passage, produce needed gas pressure through air cleaner 18 by 14 controls of gas pressure electric control valve, pressure in the gas passage can be observed by gas gauge 15, gas pressure should in emergency circumstances can use air cutoff valve 17 to open and close compressed air between 0.4-0.7MPa under the normal condition.Cooling water from the liquid inlet 13 enter the atomizing cooling device fluid passage, supply with by the flow of fluid flow electric control valve 9 control cooling liquids through liquid filter 11, fluid pressure in the fluid passage can be observed by fluid pressure table 10, gas pressure should in emergency circumstances can use liquid stop valve 12 to open and close cooling water between 0.1-0.4MPa under the normal condition.Compressed air and cooling water enter atomizer 2 simultaneously, atomizing through atomizer 2, mix to produce needed atomizing cooling medium, and by atomizer 2 be ejected into squeegee roller 4 and race thereof, attached to being extruded metal, material blocking block 8, cavity 7, boots seat 6, axle sleeve 19, frame 1 etc. and needing on the high-temperature component of cooling in the race of squeegee roller 4.The a large amount of fine droplets of atomizing in the cooling medium are directly gasified on contact-making surface, and the steam of formation is compressed air when taking away, again the cooling of fellowship high temperature component surface that compressed air is blown to.The atomizing cooling device that the present invention relates to has 3 atomizers 2, the atomizer 2 that wherein is installed on the boots seat 6 is made as per hour 20-60 liter, air mass flow is a per minute 60-120 liter, the atomizer 2 that is installed on the frame 1 is made as per minute 4-20 liter, and air mass flow is a per minute 120-160 liter.
Claims (8)
- One kind use the atomizing cooling technology continuous extrusion apparatus, comprise frame, main shaft, squeegee roller, compact wheel, the boots seat, cavity, material blocking block and axle sleeve, squeegee roller is installed on the main shaft, compact wheel is installed on the squeegee roller top, cavity is installed in the boots seat, material blocking block is installed on the cavity, axle sleeve is installed on the main shaft outside, it is characterized in that: also comprise atomising device, atomising device comprises atomizer, fluid pipeline and gas pipeline, fluid pipeline is connected with atomizer with gas pipeline, the fluid flow electric control valve is installed on the fluid pipeline, the fluid pressure table, liquid filter, the liquid stop valve, each parts connects by pipeline, and the gas pressure electric control valve is installed on the gas pipeline, gas gauge, air cleaner, air cutoff valve, each parts connects by pipeline.
- 2. a kind of continuous extrusion apparatus that uses the atomizing cooling technology according to claim 1, it is characterized in that: described continuous extrusion apparatus is equipped with three atomizers.
- 3. a kind of continuous extrusion apparatus that uses the atomizing cooling technology according to claim 1, it is characterized in that: one of them is installed on described atomizer on the boots seat, and two other is installed on the frame.
- One kind use the atomizing cooling technology cooling means, it is characterized in that: may further comprise the steps:A. measure squeegee roller tach signal and material blocking block temperature signal;B. squeegee roller tach signal of Ce Lianging and material blocking block temperature signal input control device carry out calculation process, the output control signal;C. control signal control is positioned at the gas pressure electric control valve and the fluid flow electric control valve that is positioned on the atomising device fluid passage on the atomising device gas passage, adjustments of gas pressure and fluid flow, thereby the mixed proportion of regulating compressed air and cooling water in the cooling medium;D. compressed air in the gas passage and the cooling water in the fluid passage enter atomizer simultaneously, through being ejected into after the atomizing of atomizer on the high-temperature component that needs cooling.
- 5. a kind of cooling means of using the atomizing cooling technology according to claim 4, it is characterized in that: the compressed air in the described gas passage filtered through pneumatic filter before entering atomizer, detect gas pressure by gas gauge, when gas pressure is not in normal range (NR), can use air cutoff valve to open and close compressed air; Cooling water in the described fluid passage filtered through liquid filter before entering atomizer, by fluid pressure table tracer liquid pressure, can use the liquid stop valve to open and close cooling water when fluid pressure is not in normal range (NR).
- 6. a kind of cooling means of using the atomizing cooling technology according to claim 4, it is characterized in that: described control device adopts PLC and industrial control computer.
- 7. a kind of cooling means of using the atomizing cooling technology according to claim 4 is characterized in that: measure the squeegee roller tach signal and adopt revolution counter, speed-testing engine or encoder.
- 8. a kind of cooling means of using the atomizing cooling technology according to claim 4, it is characterized in that: the material blocking block temperature adopts thermocouple measurement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010259569 CN101934299A (en) | 2010-08-17 | 2010-08-17 | Continuous extrusion equipment using atomization cooling technology and cooling method |
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| CN 201010259569 CN101934299A (en) | 2010-08-17 | 2010-08-17 | Continuous extrusion equipment using atomization cooling technology and cooling method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841042A (en) * | 2012-09-07 | 2012-12-26 | 首钢总公司 | Method for measuring nozzle granularity by laser |
| CN102854098A (en) * | 2012-09-07 | 2013-01-02 | 首钢总公司 | Nozzle granularity laser test apparatus |
| CN103121046A (en) * | 2013-01-22 | 2013-05-29 | 大连交通大学 | Method and equipment for producing double-metal composite material by longitudinally wrapping and welding metal strip |
| CN103611748A (en) * | 2013-11-21 | 2014-03-05 | 大连交通大学 | Continuous extrusion method and extrusion tool for lead frame material of shallow wheel trough |
| CN104550303A (en) * | 2015-01-11 | 2015-04-29 | 傅昌明 | Multi-medium adjustable balanced cooling system and application thereof |
| CN113083928A (en) * | 2021-03-29 | 2021-07-09 | 北京科技大学 | Extrusion die cooling channel structure and cooling method |
| CN113415977A (en) * | 2021-05-19 | 2021-09-21 | 河南旭阳光电科技有限公司 | Protection device, heating furnace and deformation prevention method |
| CN113751392A (en) * | 2021-09-02 | 2021-12-07 | 上海海事大学 | Heat treatment equipment capable of controlling atomization degree in workpiece cleaning stage |
| CN115228959A (en) * | 2022-07-18 | 2022-10-25 | 山东大学 | Integral extrusion forming equipment for large-size component |
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| GB1388896A (en) * | 1971-03-18 | 1975-03-26 | Alusuisse | Extrusion of workpieces |
| CN101623712A (en) * | 2009-08-11 | 2010-01-13 | 大连康丰科技有限公司 | Continuous squeezing method and device for directly cooling squeeze wheel race and material stop block surfaces |
| CN201760463U (en) * | 2010-08-17 | 2011-03-16 | 大连康丰科技有限公司 | Continuous squeezing equipment using atomization cooling technique |
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Patent Citations (5)
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| GB475836A (en) * | 1936-04-23 | 1937-11-26 | Standard Telephones Cables Ltd | Improvements relating to the cooling of hot material extruded through presses, particularly presses for lead sheathing of cables |
| GB896069A (en) * | 1959-04-23 | 1962-05-09 | Schloemann Ag | Improvements in the cooling of press discs in extrusion presses |
| GB1388896A (en) * | 1971-03-18 | 1975-03-26 | Alusuisse | Extrusion of workpieces |
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| CN201760463U (en) * | 2010-08-17 | 2011-03-16 | 大连康丰科技有限公司 | Continuous squeezing equipment using atomization cooling technique |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841042A (en) * | 2012-09-07 | 2012-12-26 | 首钢总公司 | Method for measuring nozzle granularity by laser |
| CN102854098A (en) * | 2012-09-07 | 2013-01-02 | 首钢总公司 | Nozzle granularity laser test apparatus |
| CN102841042B (en) * | 2012-09-07 | 2014-08-27 | 首钢总公司 | Method for measuring nozzle granularity by laser |
| CN103121046A (en) * | 2013-01-22 | 2013-05-29 | 大连交通大学 | Method and equipment for producing double-metal composite material by longitudinally wrapping and welding metal strip |
| CN103611748A (en) * | 2013-11-21 | 2014-03-05 | 大连交通大学 | Continuous extrusion method and extrusion tool for lead frame material of shallow wheel trough |
| CN104550303A (en) * | 2015-01-11 | 2015-04-29 | 傅昌明 | Multi-medium adjustable balanced cooling system and application thereof |
| CN113083928A (en) * | 2021-03-29 | 2021-07-09 | 北京科技大学 | Extrusion die cooling channel structure and cooling method |
| CN113083928B (en) * | 2021-03-29 | 2022-04-29 | 北京科技大学 | Extrusion die cooling channel structure and cooling method |
| CN113415977A (en) * | 2021-05-19 | 2021-09-21 | 河南旭阳光电科技有限公司 | Protection device, heating furnace and deformation prevention method |
| CN113415977B (en) * | 2021-05-19 | 2023-06-09 | 河南旭阳光电科技有限公司 | Protective device, heating furnace and deformation prevention method |
| CN113751392A (en) * | 2021-09-02 | 2021-12-07 | 上海海事大学 | Heat treatment equipment capable of controlling atomization degree in workpiece cleaning stage |
| CN115228959A (en) * | 2022-07-18 | 2022-10-25 | 山东大学 | Integral extrusion forming equipment for large-size component |
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Application publication date: 20110105 |