CN102400187B - Thermal Treatment Apparatus For Foam Iron - Google Patents

Thermal Treatment Apparatus For Foam Iron Download PDF

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Publication number
CN102400187B
CN102400187B CN201010624679.3A CN201010624679A CN102400187B CN 102400187 B CN102400187 B CN 102400187B CN 201010624679 A CN201010624679 A CN 201010624679A CN 102400187 B CN102400187 B CN 102400187B
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CN
China
Prior art keywords
unit
tunnel
thermal treatment
foam iron
travelling belt
Prior art date
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Withdrawn - After Issue
Application number
CN201010624679.3A
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Chinese (zh)
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CN102400187A (en
Inventor
金炳文
崔昌瑛
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KOREAZINC CORP
Alantum GmbH and Co KG
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KOREAZINC CORP
Alantum GmbH and Co KG
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Publication of CN102400187A publication Critical patent/CN102400187A/en
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • F27B2009/124—Cooling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)

Abstract

Disclosed is a thermal treatment apparatus capable of continuously manufacturing foam iron having uniform density. The thermal treatment apparatus comprises a thermal treatment unit for carrying out thermal treatment over the plating iron porous sheet for removing the porous sheet and making foam iron, and a transmission unit used for transmitting the plating iron porous sheet to the thermal treatment unit.

Description

The thermal treatment unit of foam iron
Technical field:
The present invention relates to a kind of manufacture foam iron thermal treatment unit of foam iron, relate more particularly to a kind ofly by heat-treating plating the electroconductibility porous sheet of metal, manufacture continuously the foam iron thermal treatment unit of foam iron.
Background technology:
Conventionally, foamed metal (metal foam) refers to porous (porous) metal in metallic substance inside with numerous bubble.
This foamed metal is divided into open cell type (open cell type) and obturator-type (closed cell type) according to being contained in its inner bubble shape.Open-celled foam metal is because bubble phase connects, so gas or fluid can be easy to pass through bubble.On the contrary, obturator-type foamed metal is owing to mutually not connecting between bubble, and relatively isolated to each other, is therefore difficult for making gas or fluid to pass through.
The similar of open-celled foam metal is in human skeleton, and its surface to volume ratio is very large, and its weight is lighter, therefore serves many purposes.
This foamed metal is applied in various industries, the strainer of using as battery electrode, fuel cell member, exhaust and filtration apparatus, pollution control device, support of the catalyst, sound equipment member etc.
Known foamed metal is mainly to using nickel, copper, aluminium or silver as base metal, but it is actually rare as the report of the foam iron of base metal to using iron.
Technology contents:
In view of the foregoing, the invention provides a kind of foam iron thermal treatment unit, the foam iron of the even density that this foam iron thermal treatment unit can manufacture a product continuously.
The present invention also provides a kind of foam iron thermal treatment unit, and this foam iron thermal treatment unit can suitably regulate thermal treatment temp and the atmosphere surrounding in each stage.
The present invention also provides a kind of foam iron thermal treatment unit, and this foam iron thermal treatment unit can prevent disconnection and the distortion of foam iron in the process of manufacturing continuously foam iron.
Foam iron thermal treatment unit of the present invention can comprise: thermal treatment unit, plating iron porous sheet is heat-treated, and after removing porous sheet, manufacture foam iron; Delivery unit, for moving to described thermal treatment unit by plating iron porous sheet.
Wherein, described thermal treatment unit can be configured to the tunnel-like structures that can make plating iron porous sheet advance.
Thermal treatment unit can comprise: tunnel, be arranged on equipment stand in the longitudinal direction, and its two ends are provided with entrance and outlet, and innerly for described sheet material, move; Heating unit, along the setting of described tunnel, heats to remove porous insert to the sheet material via described tunnel; Oxidation unit, by described heating unit setting, for removing the residual carbon of foam iron of eliminating porous insert; Reduction unit, by described oxidation unit setting, for reducing described foam iron; Annealing unit, by described reduction unit setting, for eliminating the suffered thermal shocking of foam iron; Cooling unit, by described annealing unit setting, for cooling described foam iron.
Thermal treatment unit can further comprise resolving cell, and described resolving cell is connected to described heating unit, the gas producing in decomposition and removal heating unit.
Described thermal treatment unit can further comprise curtain unit, and described curtain unit is between heating unit described in zoning and described oxidation unit, or between described oxidation unit and described reduction unit, or between described annealing unit and described cooling unit.
Heating unit can comprise: heating chamber, coated described tunnel setting; Supply-pipe, is connected to tunnel internal through described heating chamber, for providing environmental gas to described tunnel; Well heater, is arranged in described heating chamber, for heating described tunnel.
Oxidation unit can comprise: oxidizing chamber, coated described tunnel setting; Supply-pipe, is connected to described tunnel internal through described oxidizing chamber, for providing environmental gas to described tunnel; Well heater, is arranged in described oxidizing chamber, for heating described tunnel.
Reduction unit can comprise: reduction chamber, coated described tunnel setting; Supply-pipe, is connected to described tunnel internal through described reduction chamber, for providing environmental gas to described tunnel; Well heater, is arranged on described reduction indoor, for heating described tunnel.
Annealing unit can comprise annealing chamber, and described annealing chamber is also interconnected with it in described reduction chamber continuously, and coated described tunnel setting.
Cooling unit can comprise watercooling jacket, the coated described tunnel of described watercooling jacket arranged outside, and its inner Cooling Water flows.Cooling unit can be provided with track on described equipment stand, and is provided with in the bottom of described watercooling jacket the moving wheel being placed on described track, and while stretching under heat treated impact in described tunnel thus, described cooling unit can be guided described tunnel.
Delivery unit can comprise: travelling belt, and described travelling belt forms closed curve, after entrance and outlet via described tunnel, is recycled to the below of described equipment stand, and for described sheet material, puts above it; Driver element, is arranged on described equipment stand, for described travelling belt is advanced.
Travelling belt can be the mesh structure that is provided with continuous a plurality of holes on surface.
Delivery unit can further comprise and is arranged on equipment stand below, for washing the washing unit on travelling belt surface.
Driver element can comprise: driving wheel, be arranged on the below of described equipment stand, and be close on described travelling belt, described travelling belt is moved; Drive-motor, is connected with the turning axle of described driving wheel, for rotating described driving wheel; Be adjacent to wheel, for described travelling belt is closely attached on to driving wheel.
Delivery unit can further comprise for keeping the stretching unit of described belt tension.Described stretching unit comprises: guiding part, be arranged on a side of described equipment stand, and its side is provided with the pilot hole of above-below direction; Weighting distribution wheel, its turning axle can be rotated to support in described pilot hole, and can move up and down along described pilot hole, and described travelling belt is hung on described weighting distribution wheel.
Described washing unit can comprise: rinse bath, be arranged on equipment stand below one side, and washings is housed in it; A plurality of guide deflection sheaves, drive described travelling belt to move on to the inside of rinse bath; Ultrasonic generator, is arranged in described rinse bath, to described washings ultra-sonic oscillation in addition.
Just as described above, the present invention's foam iron of even density that can manufacture a product continuously.
And, in the situation that not occurring disconnect or be out of shape, can stably produce continuously foam iron.
And the present invention can carry out continuous thermal treatment, therefore reduction equipment is big or small to greatest extent, and can enhance productivity.
Accompanying drawing explanation:
Fig. 1 is the structural representation of foam iron thermal treatment unit of the present invention one embodiment.
Fig. 2 is the vertical view of foam iron thermal treatment unit of the present invention one embodiment.
Fig. 3 is the stereographic map in tunnel in foam iron thermal treatment unit of the present invention one embodiment.
Fig. 4 to Fig. 6 is the sectional view of thermal treatment unit in foam iron thermal treatment unit of the present invention one embodiment, for representing its internal structure.
Fig. 7 is the structure iron of delivery unit in foam iron thermal treatment unit of the present invention one embodiment.
Fig. 8 to Figure 10 is the sectional view of delivery unit in foam iron thermal treatment unit of the present invention one embodiment, for representing its internal structure.
Embodiment:
Below, be described with reference to the accompanying drawings the present invention, so that those of ordinary skills can easily implement the present invention.The embodiment that one with ordinary skill in the art would appreciate that rear narration can have various deformation mode under the condition that does not depart from spirit of the present invention and scope, and is not limited to following examples.And as far as possible same or similar part is represented with identical symbol in the accompanying drawings.
Fig. 1 and Fig. 2 illustrate an embodiment of foam iron thermal treatment unit of the present invention.
As shown in the figure, foam iron thermal treatment unit 100 comprises: thermal treatment unit 200, for the plating iron porous sheet going out from Abrollhaspel uncoiling, heat-treat, and to remove organic composition porous insert, and manufacture foam iron; Delivery unit 300, for being sent to thermal treatment unit 200 by plating iron porous sheet.
Wherein, plating iron porous sheet is on electroconductibility porous sheet, to be coated with the sheet material of ferrous metal.Electroconductibility porous sheet is to be internally connected with the sheet structure that deposits conducting material on the open cell type Porous-Organic surface of bubble.Wherein, organic porous body can be micro-pore of polymer, non-woven fabrics, organic fabric etc.In the present embodiment, electroconductibility porous sheet is the material that deposits titanium (Ti) metal on the organic porous body of polyurethane material.Except titanium metal, can nickel deposited (Ni) or other metals such as copper (Cu) and form electroconductibility porous sheet.Can form described electroconductibility porous sheet by electroplating device deposited iron on porous insert surface.Deposit the porous sheet of ferrous metal by web-like coiled type.Through in the process of foam iron thermal treatment unit 100 of the present invention, the porous sheet in plating iron porous sheet is removed and makes foam iron.For convenience of description, in the following description the described porous sheet that deposits ferrous metal is called to " sheet material ", and the sheet material that wherein porous sheet is eliminated is called " foam iron ".
The sheet material that is rolled into coiled type from Abrollhaspel (not shown) is untied, is made foam iron via the thermal treatment unit 200 in foam iron thermal treatment unit 100 by certain speed.
In the present embodiment, described thermal treatment unit 200 is tunnel-like structures.Described thermal treatment unit 200 is arranged on the equipment stand 110 of along continuous straight runs extension, thereby sheet material is carried out to continuous thermal treatment.For this reason, described thermal treatment unit 200 arranges along its length on equipment stand 110, comprising: tunnel 210, and move for described sheet material its inside; Heating unit 220, along described tunnel, 210 arrange, and the sheet material via described tunnel 210 is heated and removes porous insert; Oxidation unit 230, arranges by described heating unit 220, for removing the carbon that remains in foam iron; Reduction unit 240, arranges by described oxidation unit 230, for reducing foam iron; Annealing unit 250, arranges by described reduction unit 240, for eliminating the suffered thermal shocking of foam iron; Cooling unit 260, arranges by described annealing unit 250, for cooling described foam iron.
And described thermal treatment unit 200 also comprises resolving cell 270, described resolving cell 270 is connected with described heating unit 220, for decomposing and removing the gas that the burning process at described sheet material produces.
Described thermal treatment unit 200 also can have between zoning heating unit 220 and oxidation unit 230, or between oxidation unit 230 and reduction unit 240, or the curtain unit 280 between annealing unit 250 and cooling unit 260.
Described a plurality of curtains unit 280 comprises respectively jet pipe 282, and described jet pipe 282 is configured on described tunnel 210, for spraying environmental gas with width.Described jet pipe 282 is connected with environmental gas supply line (not shown).Jet pipe 282 has nozzle down, therefore in described tunnel 210, down sprays environmental gas.Wherein, the environmental gas of supplying with to described jet pipe 282 can be rare gas element---nitrogen (N 2) or argon gas (Ar).
So, in curtain unit 280, rare gas element is directed onto 210 inside, tunnel, and described tunnel 210 is become respectively to independently a plurality of regions by thermal treatment order zoning.
And described delivery unit 300 comprises travelling belt 310 and the driver element that described travelling belt 310 is advanced, described travelling belt 310 loads described sheet material, and by described tunnel 210.Described travelling belt 310 forms closed curve, after the entrance 211 of its process of passing through tunnel 210 and outlet 212, is recycled to equipment stand 110 bottoms.For the structure of described delivery unit 300, will be described in detail in the back.
Below, each structure division of described thermal treatment unit 200 is made a more detailed description.
Fig. 3 represents tunnel 210, transmits described sheet material, and it is heat-treated in described tunnel.As shown in the figure, tunnel 210 is flat tubular structure, and its width is larger than highly, approximately corresponding with described sheet material.Tunnel 210 mutually by connecting, so that described sheet material advances continuously, and is subject to thermal treatment stage by stage by a plurality of tubular structures.Two ends in tunnel 210 have entrance 211 and outlet 212, so that the sheet material being loaded on described travelling belt 310 can be inner mobile in described tunnel 210.210 tops, described tunnel are connected with the vapor pipe 218 for emission gases.Tunnel 210 can change its Design of length according to heat-treat condition, is not particularly limited.
In the present embodiment, described tunnel 210 is become with lower area by zoning in the working direction of sheet material: be subject to heating unit 220 impact heating zone 213, be subject to oxidation unit 230 impacts oxidation zone 214, be subject to reduction unit 240 impacts reduction zone 215, be subject to annealing unit 250 impacts annealed zone 216, be subject to the cooling zone 217 of cooling unit 260 impacts.Therefore, in described tunnel 210 on the corresponding position in each region continuously to sheet material heat, oxidation, reduction, annealing and the processing such as cooling.Described sheet material is to advance in described tunnel 210.
Fig. 4 and Fig. 5 represent to form the internal structure of heating unit 220, oxidation unit 230, reduction unit 240 and the annealing unit 250 of thermal treatment unit 200.
As shown in the figure, described heating unit 220 comprises: heating chamber 222, is arranged on the outside of 210Zhong heating zone, described tunnel 213; Supply-pipe 224, is connected to 210 inside, tunnel via described heating chamber 222, to described tunnel 210, provides environmental gas; Well heater 26, is arranged on the inside of described heating chamber 222, for heating described tunnel 210.In the present embodiment, described heating unit 220 is placed on described travelling belt 310 and the sheet material S advancing in described tunnel 210 with the temperature heating of 500-600 ℃.The heat treated time of described sheet material S in described heating unit 220 is 10-60 minute.That is, described heating unit 220 has can make described sheet material S under its transfer rate, in the described heating unit internal stops length of 10-60 minute.If described Heating temperature or heat-up time are not enough, porous insert just can not normally be removed.
Described heating chamber 222 is thermal insulation chamber, and its 210Zhong heating zone, coated described tunnel 213 arranges.In the inside of described heating chamber 222, described well heater 226 is arranged on the top in described tunnel 210.In one side of heating chamber 222, be provided with the thermopair 228 for detection of internal temperature.In the present embodiment, described well heater 226 can be the heating wire that converts electric energy to heat energy, but is not particularly limited.
Described supply-pipe 224 from the bottom of described heating chamber 222 via the bottom that is connected internally to tunnel 210 of described heating chamber 222.In the present embodiment, the environmental gas that described heating unit 220 provides to described tunnel 210 is the hydrogen (H being diluted in rare gas element 2), and described environmental gas is provided to 210 inside, tunnel by supply-pipe.Rare gas element can be nitrogen (N 2) or argon gas (Ar).The content of hydrogen described in the present embodiment remains on the scope of 3-10%.Therefore, described sheet material S is via in described tunnel 210 during heating unit 220 region, and wherein organic composition-porous insert is eliminated by high temperature oxidation in the hydrogen environment of 3-10%.
In addition, on described heating unit 220, be connected with resolving cell 270, described resolving cell 270 is for decomposing and removing the gas producing while burning described sheet material.Resolving cell 270 is unit of the gas that produces when with high thermal incineration sheet material for disaggregating treatment, comprises decomposing furnace 272, and described decomposing furnace 272 is connected on the vapor pipe 218 in described tunnel 210, for pyroprocessing emission gases.Described decomposing furnace 272 is probably heated to form after 1100 ℃ of temperature, the gas producing in the burning process with the described sheet material S of pyrolytic decomposition processing.
On the other hand, although described oxidation unit 230, reduction unit 240 and annealing unit 250 have certain difference in size, substantially there is identical structure with described heating unit 220.
Described oxidation unit 230 comprises: oxidizing chamber 232, coated being arranged in the oxidation zone 214 in described tunnel 210; Supply-pipe 234, is connected to the inside in tunnel 210 via described oxidizing chamber 232, to described tunnel 210, provide environmental gas; Well heater 236, is arranged in described oxidizing chamber 232, for heating described tunnel 210.In the present embodiment, the temperature of described oxidation unit 230 use 500-600 ℃ adds the foam iron F that advances in heat tunnel 210 (at this, F does not represent the material of foam iron, but Reference numeral).In described oxidation unit 230, foam iron (F) 10-30 minute described in heat treated.Be that described oxidation unit 230 has and can make foam iron F under its transfer rate, in described oxidation unit, stop the length of 10-30 minute.If Heating temperature surpasses 600 ℃, the pin-and-hole growing amount on foam iron surface increases.
Described oxidizing chamber 232 is thermal insulation chamber structures, and its exit by described heating chamber 222 configures continuously, and the described oxidation zone 214 in coated described tunnel 210.In the inside of oxidizing chamber 232, described well heater 236 is arranged on the upside in tunnel 210.A side at oxidizing chamber 232 is provided with the thermopair 238 for detection of internal temperature.In the present embodiment, described well heater 236 can be the heating wire that converts electric energy to heat energy, but is not particularly limited.Described supply-pipe 234 is from the bottom that is connected internally to tunnel 210 of the bottom process oxidizing chamber 232 of oxidizing chamber 232.In the present embodiment, described oxidation unit 230 provides environmental gas in described tunnel 210, and described environmental gas is the oxygen (O being diluted in rare gas element 2), described environmental gas is provided to the inside in tunnel 210 by supply-pipe.Rare gas element can be nitrogen (N 2) or argon gas (Ar).The content of oxysome described in the present embodiment remains within the scope of 3-10%.Therefore, 230 pairs of described oxidation units are via in the process of heating unit 220, wherein organic composition---the foam iron F that porous insert is eliminated carries out continuous heat treated, thus residual carbon in the iron F that defoams in oxygen atmosphere.If oxygen content surpasses 10%, the pin-and-hole growing amount on foam iron surface will increase.
Described reduction unit 240 comprises: reduction chamber 242, coated being arranged on the reduction zone 215 in described tunnel 210; Supply-pipe 244, be connected to the inside in tunnel 210, and 210 inside provides environmental gas to tunnel via reduction chamber 242; Well heater 246, is arranged in reduction chamber 242, for adding heat tunnel 210.In the present embodiment, the foam iron F that the temperature heating of described reduction unit 240 use 950-1150 ℃ is advanced in described tunnel 210.Foam iron F is heated and processes 10-60 minute in described reduction unit 240.That is, described reduction unit 240 has can make foam iron F under its transfer rate, stops the length of 10-60 minute in described reduction unit.If described Heating temperature is equal to or less than 950 ℃, the soft of described foam iron will reduce.
Described reduction chamber 242 is thermal insulation structural lumen, and it arranges by described oxidizing chamber 232 exits, and coated being arranged on the reduction zone 215 in described tunnel 210.Reducing the inside of chamber 242, the upside in described tunnel 210 is provided with well heater 246.One side of reduction chamber 242 is provided with the thermopair 248 for detection of internal temperature.In the present embodiment, described well heater 246 can consist of the heating wire that converts electric energy to heat energy, but is not particularly limited.Described supply-pipe 244 from the bottom of reduction chamber 242 via the bottom that is connected internally to tunnel 210 of described reduction chamber 242.In the present embodiment, to tunnel, 210 environmental gas that provide are the hydrogen (H being diluted in rare gas element to described reduction unit 240 2), described environmental gas is provided to the inside in tunnel 210 by supply-pipe 244.Described rare gas element can be nitrogen (N 2) or argon gas (Ar).Wherein, at foam iron, reduce the iron of specified amount in via the process of reduction zone in for the treatment time in regulation, the hydrogen of the amount of adapting is with it provided.In the present embodiment, the content of described hydrogen remains on 25-50%.If hydrogen content is equal to or less than 25%, cannot carry out complete reduction, can reduce the soft of foam iron.If hydrogen content surpasses 50%, only can improve the consumption of hydrogen, and there is no great meaning.
And described annealing unit 250 is continuously in the section of reduction zone, comprises annealing chamber 252, the annealed zone 216 in described annealing chamber 252 coated described tunnel 210 by described reduction chamber arranges.Described annealing chamber 252 within it portion does not possess for adding the extra well heater of heat tunnel.Therefore, via heated foam iron in the process of reduction chamber, in the process of annealed chamber, lower the temperature.In the present embodiment, described annealing unit 250 is reduced to 400-600 ℃ by the temperature of the foam iron F by reduction unit 240 heat.In described annealing unit 250, to foam iron, F carries out the processing of 10-60 minute.That is, described annealing unit 250 has can make foam iron F under its transfer rate, stops the length of 10-60 minute in described annealing unit.
Described annealing chamber 252 is thermal insulation structural lumen, and it is coated and is arranged on the annealed zone 216 in described tunnel 210 by reduction chamber 242.Inside one side of annealing chamber 252 is provided with the thermopair 258 for detection of internal temperature.Annealing chamber described in the present embodiment 252 is continuously 242 structures that are also interconnected with it in described reduction chamber, with described reduction chamber in the same manner, described annealing chamber also provides environmental gas to described tunnel 210, and described environmental gas is the hydrogen (H being diluted in rare gas element 2).
So, when sheet material S via the heating unit 220 of thermal treatment unit 200 and the process of oxidation unit 230 in, wherein organic composition-porous insert is eliminated, thereby reduces residual carbon content in foam iron F.And, then in reducing environment, heat-treat that iron is carried out to restoring operation, and in order to ensure the soft and tensile strength of foam iron, carry out stress and remove annealing operation.
Foam iron via described annealing unit 250 becomes finished product again after cooling unit 260.
As shown in Figure 6, described cooling unit 260 is arranged on the cooling zone 217 in the tunnel 210 advancing for foam iron F in the exit of annealing unit 250.Described cooling unit is coated the setting of described tunnel, includes the mobile watercooling jacket of Cooling Water 261 in it.In the process of the water coolant that enters watercooling jacket 261 through the cooling zone in described tunnel, carry out heat exchange, and cooling described tunnel therefrom.In Fig. 6, Reference numeral 262 represents for supporting the supporting member between tunnel 210 and watercooling jacket 261.
And when described tunnel occurs to stretch, described cooling unit is guided described tunnel can coordinate its expanding-contracting action in described heat treatment process.For this reason, be provided with track 266 on equipment stand 110, the below of watercooling jacket 261 is provided with moving wheel 268, and described moving wheel 268 is placed on described track 266.Described track 266 on equipment stand 100 along the length direction setting in described tunnel.The bottom of described watercooling jacket 261 is separately provided with for compensating the supporting base 264 of difference of altitude between itself and equipment stand, and in the bottom of described supporting base 264, rotatably be provided with a plurality of described moving wheels 268, a plurality of described moving wheels 268 have certain distance each other.Described moving wheel 268 is placed on described track 266, and supports the cooling unit 260 in tunnel 210, and along described rail moving, makes the described tunnel can be capable of expansion and contraction.
The following describes for making delivery unit 300 structures of described sheet material 210 movements in tunnel.
As shown in Figure 7, described delivery unit 300 comprises: travelling belt 310, carries sheet material process of passing through tunnel 210; Driver element, drives described travelling belt 310 to advance.
Described travelling belt 310 forms closed curves, during via the entrance 211 in described tunnel 210, along described tunnel 210, transmits sheet materials; After outlet 212 out by described tunnel 210, be recycled to the below of equipment stand 110.In the present embodiment, described travelling belt 310 has continuous a plurality of holes in its surface, forms mesh structure.Described travelling belt 310 can consist of stainless steel (SUS 310) material.
On described equipment stand 110 ingress in tunnel 210 and exit be provided with for support and horizontally-guided described in ingress loose pulley 320 and the exit loose pulley 322 of travelling belt 310.Travelling belt 310 enters the entrance 211 in tunnel 210 via ingress loose pulley 320, and by the outlet 212 in tunnel 210 out by be recycled to the below of equipment stand 110 by exit loose pulley 322.
Described driver element is arranged on equipment stand 110 belows, drives travelling belt 310 to advance.As shown in Figure 7 and Figure 8, described driver element comprises: driving wheel 330, is close on travelling belt 310 for mobile described travelling belt 310; Drive-motor 332, is connected on the turning axle of driving wheel 330, for rotating described driving wheel 330; Be adjacent to wheel 334,336, for making described travelling belt 310 be closely attached on driving wheel.Although described driver element is positioned at entrance 211 places in tunnel 210 in the present embodiment, its setting position is not particularly limited.And, in order to transmit the power of drive-motor 332, on the turning axle of drive-motor 332, be provided with driving toothed gear 338, and on the turning axle of driving wheel 330, be provided with the follower gear 339 being meshed with described driving toothed gear 338.Therefore,, when drive-motor 332 work, driving wheel 330 is by driving toothed gear 338 and follower gear 339 rotations, and the travelling belt 310 that drive is close on driving wheel 330 advances.
In the present embodiment, described two are adjacent to wheel 334,336 and form a pair ofly, and are arranged on the both sides of driving wheel 330.Described two are adjacent to wheel 334,336 areas that are adjacent to for increasing 310 pairs of driving wheels 330 of described travelling belt.For example, two are adjacent to the top that wheel 334,336 is arranged on driving wheel 330, to ensure that described travelling belt 310 can be wrapped in fully on two driving wheel 330 surfaces that are adjacent between wheel 334,336 and advance.Thus, can increase the contact area of 310 pairs of driving wheels 330 of travelling belt, thereby increase frictional force, reduce the skidding of travelling belt 310.Wherein, the inside of described equipment stand 110 is provided with a plurality of guide wheels 340, and described a plurality of guide wheels 340 are for supporting and be guided on the travelling belt 310 of described equipment stand 110 bottom circulations.
In the present embodiment, the rate of advance of described travelling belt 310 determines the suffered heat treatment time of sheet material.That is,, if the rate of advance of travelling belt 310 is slowed down, the transfer rate of sheet material will be slack-off; If the rate of advance of travelling belt 310 is accelerated, the transfer rate of sheet material will be accelerated.Therefore, when through the tunnel 210 of certain length, if regulate the rate of advance of travelling belt 310, just can change sheet material in tunnel 210 via the time, and then change heat treatment time.Therefore, the foam iron thermal treatment unit 100 of the present embodiment can, by regulating the rate of advance of travelling belt 310, carry out the heat treatment time of adjustment sheet simply.
In addition, described delivery unit 300 also comprises for keeping the stretching unit 350 of travelling belt 310 tension force.When heat-treating the tunnel 210 of operation, described travelling belt 310 can Yin Gaore and is elongated.And described stretching unit 350 is for compensating the travelling belt 310 of elongation like this, the tension force of described travelling belt 310 is consistent.
As shown in Fig. 7 and Fig. 9, described stretching unit 350 comprises: guiding part 352, and it is arranged on a side of described equipment stand 110, and its side is provided with the pilot hole 354 of above-below direction; Weighting distribution wheel 356, its turning axle can be rotated to support in described pilot hole 354, and can move up and down along described pilot hole 354, and described travelling belt 310 is hung on described weighting distribution wheel 356.Described weighting distribution wheel 356 is pushed down described travelling belt 310 with its deadweight.
Guiding part described in the present embodiment is arranged on the ingress in tunnel 210 on described equipment stand 110.Therefore, via driver element be adjacent to wheel 334,336 travelling belt 310 through being arranged on after the weighting distribution wheel 356 on pilot hole 354, then through the ingress on top loose pulley 320, go to the inside in described tunnel 210.Therefore, in pilot hole 354, movable balance weight wheel 356 becomes the state that continues to push down described travelling belt 310 with its deadweight, and continues therefrom to maintain the tension force of travelling belt 310.
And described delivery unit 300 also comprises and is arranged on equipment stand 110 belows, for washing the washing unit 360 on travelling belt 310 surfaces.As shown in Fig. 7 and Figure 10, described washing unit 360 comprises: rinse bath 362, be arranged on equipment stand below one side, and washings is housed in it; A plurality of guide deflection sheaves 366, for making travelling belt 310 move to the inside of rinse bath 362; Ultrasonic generator 364, is arranged in described rinse bath, to described washings ultra-sonic oscillation in addition.
362 pairs of washingss of ultrasonic generator apply ultrasonic wave, so that described travelling belt 310 produces vibration.Therefore, through the water coolant sticking in the process of cooling unit 260 on travelling belt 310, because vibrating, the suffered micro-ultrasonic of travelling belt 310 drops.
The following describes the effect of foam iron thermal treatment unit of the present invention.
The porous sheet S that is coated with ferrous metal by electroplating process is placed on travelling belt 310 after being arranged on the continuous uncoiling of Abrollhaspel of entrance 211 in tunnel 210.Described travelling belt 310 is by the driving of drive-motor 332, and from tunnel, 210 entrance 211 goes to outlet 212, thereby makes to settle sheet material thereon 210 to move along tunnel.That is,, when drive-motor 332 work, the follower gear 339 of take rotates as the driving wheel 330 use certain speeds that media are engaged on the driving toothed gear 338 of drive-motor 332.Accordingly, the travelling belt 310 being adjacent on driving wheel 330 advances to a direction.
From tunnel, 210 entrance 211 goes to outlet 212 places to travelling belt 310, and exit turn back to equipment stand 110 below, carry out thus continuous circulation.So, in the forward travel state of travelling belt 310, if lay sheet material on travelling belt 310, described sheet material will move under the state that is placed in travelling belt 310.
The sheet material S that the state of settling on travelling belt 310 moves along described tunnel 210 via continuous heat treatment process after, wherein organic substance-porous insert is removed, and makes foam iron F after obtaining soft and tensile strength.
Entering in the process of sheet material heating zone 213 in process of passing through tunnel 210 of entrance 211 in tunnel 210 wherein organic substance-porous insert is removed by high temperature.The heating chamber in coated tunnel 210 heats the sheet material of process of passing through tunnel 210 inside by its inner well heater, and Heating temperature is 500-600 ℃.In addition, 210 the hydrogen of internal feed 3-10% and the gas mixture of rare gas element to tunnel.Sheet material can be set as 10-60 minute via the time of heating zone 213.Therefore, sheet material is subject to thermal treatment in the process via hydrogen environment tunnel 210 in setting-up time, and in this process wherein porous insert be removed.In addition, the waste gas producing in the process that porous insert at high temperature burns is discharged into after decomposing furnace 272 by vapor pipe 218, in described decomposing furnace 272, is subjected to pyroprocessing.
After eliminating organic composition-porous insert, remaining foam iron F continues along travelling belt 310 oxidation zone 214 that moves and go to tunnel 210.In process at described foam iron F via the oxidation zone 214 in tunnel 210, carbon (carbon) residual in foam iron F is removed.
In oxidation zone 214, under the effect of the well heater of portion within it of the oxidizing chamber 232 in coated described tunnel 210, by the temperature of 500-600 ℃, the foam iron F via 210 inside, tunnel is heated.In addition, to 210 inside, described tunnel, provide the oxygen of 3-10% and the gas mixture of rare gas element.Foam iron F can be set as 10-30 minute through the time of oxidation zone 214.Therefore, foam iron F is subject to thermal treatment in the process via oxygen environment tunnel 210 in setting-up time.By as above heat treatment process, can avoid foam iron F to be damaged under the effect of drawing force, and can suppress to greatest extent the pin-and-hole (pin-hole) that may produce in the removal process of organic composition on foam iron F, when allowing thus the surface of foam iron F become smooth, keep outstanding soft and tensile strength.
And, so, by the oxidation unit 230 residual carbon in iron F that defoams, the carbon content rate in final foam iron F product can be reduced to below 0.05%.Now, can increase tensile strength and the unit elongation of final foam iron F product.
Wherein, be arranged on the heating zone 213 in described tunnel 210 and the jet pipe 282 between oxidation zone 214 and spray rare gas element on the width in described tunnel 210.Accordingly, between the heating zone 213 in tunnel 210 and oxidation zone 214, as the curtain that hangs down, by rare gas element, interdicted.Therefore, can avoid environmental gas in heating zone 213 and the environmental gas in oxidation zone 214 to mix.
So the foam iron F after sheet material is removed organic composition and carbon component is along with travelling belt 310 continuation movements, and goes to the reduction zone 215 in tunnel 210.Foam iron F is subject to reduction and processes in the process through reduction zone 215.
In reduction zone 215, under the effect of portion's well heater within it of the reduction chamber 242 in coated tunnel 210, the foam iron F with the temperature heating of 950-1150 ℃ via 210 inside, tunnel.And to reduction zone, 215 210 inside, tunnel provide reducing environment gas, the hydrogen that described reducing environment gas is 25-50% and the gas mixture of rare gas element.Foam iron F can be set to 10-60 minute via the time of reduction zone 215.Accordingly, foam iron F is subjected to thermal treatment and is reduced through in the process in hydrogen environment tunnel 210 in setting-up time.
Afterwards, foam iron F, along with travelling belt 310, continues to go to the annealed zone 216 in tunnel 210.In process via annealed zone 216, the internal stress of foam iron F is removed, thereby ensures its soft and tensile strength.
In annealed zone 216, the annealing chamber 252 in coated tunnel 210 is reduced to 400-600 ℃ by the temperature of the foam iron F of process of passing through tunnel 210 inside.The time in the annealed district 216 of foam iron F can be set to 10-60 minute.Therefore, foam iron F is subject to anneal in setting-up time in the process via hydrogen environment tunnel 210.
Wherein, be arranged on the oxidation zone 214 in described tunnel 210 and the jet pipe 282 between reduction zone 215 and spray rare gas element on the width in tunnel 210.Accordingly, between each section in tunnel 210, as the curtain that hangs down, by rare gas element, interdicted.Therefore can avoid the environmental gas in each region mutually to mix.
In process of passing through tunnel 210, the foam iron F of annealed zone 216 is along with being subject to cooling process in the process of travelling belt 310 via 210Zhong cooling zone, tunnel 217.In cooling zone 217, the watercooling jacket 261 that is arranged on tunnel 210 makes mobile water coolant and the tunnel of portion within it carry out heat exchange, and cooling foam iron therefrom.
Through the foam iron F of cooling zone 217 from the outlet 212 out in tunnel 210, by rolling up dish for steel tubuloses such as crimping wheels.And the travelling belt 310 of the outlet 212 of process of passing through tunnel 210 is recycled to the below of equipment stand 110 after via exit loose pulley.
Above accompanying drawings the example of embodiments of the invention, but those of ordinary skill in the art can realize various deformation example and other embodiment.And this variation and other embodiment all do not depart from spirit of the present invention, and be included in protection scope of the present invention.

Claims (14)

1. a foam iron thermal treatment unit, is characterized in that, comprising:
Thermal treatment unit, heat-treats plating iron porous sheet, after removing porous sheet, manufactures foam iron;
Delivery unit, for moving to described thermal treatment unit by plating iron porous sheet;
Wherein, described thermal treatment unit comprises:
Tunnel is arranged on equipment stand on its length direction, and its two ends are provided with entrance and outlet, and the inner sheet material that supplies moves;
Heating unit, along the setting of described tunnel, heats and removes porous insert the sheet material via described tunnel;
Oxidation unit, by described heating unit setting, for removing the residual carbon of foam iron of eliminating porous insert;
Reduction unit, by described oxidation unit setting, for reducing described foam iron;
Annealing unit, by described reduction unit setting, for eliminating the suffered thermal shocking of foam iron;
Cooling unit, by described annealing unit setting, for cooling described foam iron.
2. foam iron thermal treatment unit according to claim 1, is characterized in that, described heating unit comprises:
Heating chamber, coated described tunnel setting;
Supply-pipe, is connected to tunnel internal through described heating chamber, to provide environmental gas to described tunnel;
Well heater, is arranged in described heating chamber, for heating described tunnel.
3. foam iron thermal treatment unit according to claim 1, is characterized in that, described oxidation unit comprises:
Oxidizing chamber, coated described tunnel setting;
Supply-pipe, is connected to the inside in described tunnel through described oxidizing chamber, to described tunnel, provide environmental gas;
Well heater, is arranged in described oxidizing chamber, for heating described tunnel.
4. foam iron thermal treatment unit according to claim 1, is characterized in that, described reduction unit comprises:
Reduction chamber, coated described tunnel setting;
Supply-pipe, is connected to the inside in described tunnel through described reduction chamber, to described tunnel, provide environmental gas;
Well heater, is arranged on described reduction indoor, for heating described tunnel.
5. foam iron thermal treatment unit according to claim 1, is characterized in that, described annealing unit comprises annealing chamber, and described annealing chamber is connected with described reduction unit, and coated described tunnel setting.
6. foam iron thermal treatment unit according to claim 1, is characterized in that, described cooling unit comprises watercooling jacket, the coated described tunnel of described watercooling jacket arranged outside, and its inner Cooling Water flows.
7. foam iron thermal treatment unit according to claim 6, it is characterized in that, described cooling unit also comprises: be arranged on track on described equipment stand, be arranged on the below of described watercooling jacket and be placed in the moving wheel on described track, when described tunnel is flexible under heat treated impact, guide described tunnel thus.
8. foam iron thermal treatment unit according to claim 1, is characterized in that, described thermal treatment unit also comprises resolving cell, and described resolving cell is connected to described heating unit, the gas producing in decomposition and removal heating unit.
9. foam iron thermal treatment unit according to claim 1, it is characterized in that, described thermal treatment unit also comprises curtain unit, described curtain unit is between heating unit described in zoning and described oxidation unit, or between described oxidation unit and described reduction unit, or between described annealing unit and described cooling unit, described curtain unit is arranged in described tunnel on width, has the jet pipe for rare gas element.
10. according to the foam iron thermal treatment unit described in any one in claim 1 to 9, it is characterized in that, described delivery unit comprises:
Travelling belt, described travelling belt forms closed curve, after entrance and outlet via described tunnel, is recycled to the below of described equipment stand, and for described sheet material, puts above it;
Driver element, is arranged on described equipment stand, for driving described travelling belt to advance.
11. foam iron thermal treatment units according to claim 10, is characterized in that, described travelling belt is the mesh structure that is provided with continuously a plurality of holes on its surface.
12. foam iron thermal treatment units according to claim 10, is characterized in that, described driver element comprises:
Driving wheel, is arranged on the below of described equipment stand, and is close on described travelling belt, and described travelling belt is moved;
Drive-motor, is connected with the turning axle of described driving wheel, drives described driving wheel rotation;
Be adjacent to wheel, for described travelling belt is closely attached on to described driving wheel.
13. foam iron thermal treatment units according to claim 12, is characterized in that, described delivery unit also comprises that described stretching unit comprises for keeping the stretching unit of described belt tension:
Guiding part, is arranged on a side of described equipment stand, is provided with the pilot hole of above-below direction on it;
Weighting distribution wheel, its turning axle can be rotated to support in described pilot hole, and can move up and down along described pilot hole, and described travelling belt is hung on described weighting distribution wheel.
14. foam iron thermal treatment units according to claim 12, is characterized in that, described delivery unit also comprises and be arranged on described equipment stand below, and for washing the washing unit on travelling belt surface, described washing unit comprises:
Rinse bath, is arranged on described equipment stand below one side, and washings is housed in it;
A plurality of guide deflection sheaves, drive described travelling belt to move on to the inside of described rinse bath;
Ultrasonic generator, is arranged in described rinse bath, to described washings ultra-sonic oscillation in addition.
CN201010624679.3A 2010-09-16 2010-12-30 Thermal Treatment Apparatus For Foam Iron Withdrawn - After Issue CN102400187B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1153537A (en) * 1995-05-08 1997-07-02 新日本制铁株式会社 Equipment for continuously manufacturing metal coils and metal coil manufacturing method
CN1109132C (en) * 1996-04-19 2003-05-21 住友电气工业株式会社 Process for producing porous iron metal bady

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1153537A (en) * 1995-05-08 1997-07-02 新日本制铁株式会社 Equipment for continuously manufacturing metal coils and metal coil manufacturing method
CN1109132C (en) * 1996-04-19 2003-05-21 住友电气工业株式会社 Process for producing porous iron metal bady

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