CN111910049A - Flexible heating device suitable for different curvature shaft pieces, pipe fittings and welding structures - Google Patents

Flexible heating device suitable for different curvature shaft pieces, pipe fittings and welding structures Download PDF

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Publication number
CN111910049A
CN111910049A CN202010576057.1A CN202010576057A CN111910049A CN 111910049 A CN111910049 A CN 111910049A CN 202010576057 A CN202010576057 A CN 202010576057A CN 111910049 A CN111910049 A CN 111910049A
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CN
China
Prior art keywords
heating
quartz
material main
water
heating device
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Pending
Application number
CN202010576057.1A
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Chinese (zh)
Inventor
江鹏
孙帆
杨镠育
王铁军
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Xian Jiaotong University
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Xian Jiaotong University
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Priority to CN202010576057.1A priority Critical patent/CN111910049A/en
Publication of CN111910049A publication Critical patent/CN111910049A/en
Pending legal-status Critical Current

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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
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • 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
    • C21D1/34—Methods of heating
    • C21D1/40—Direct resistance heating
    • 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
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • 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
    • C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

The invention discloses a flexible heating device suitable for shaft parts, pipe fittings and welding structures with different curvatures, which comprises at least one heating module, wherein each heating module comprises a quartz material main body, a water cooling groove and a heating groove are arranged in the quartz material main body in parallel, a water cooling groove water inlet and a water cooling groove water outlet are respectively formed in two ends of the water cooling groove and are led out through one side surface of the quartz material main body, a quartz lamp heater is embedded in the heating groove, two ends of the quartz lamp heater are fixed with the quartz material main body through ceramic insulation protection heads, and an electric wire of the quartz lamp heater is led out from the quartz material main body. The invention has the advantages of uniform heating in the whole field, rapid heating, clean heating without pollution, no impurity introduction, no noise and high temperature control precision (1 ℃), and can carry out heat treatment with different requirements for structures of shaft shapes, rings, welding parts and the like with various sizes in major equipment in the fields of aerospace, energy power and the like.

Description

Flexible heating device suitable for different curvature shaft pieces, pipe fittings and welding structures
Technical Field
The invention relates to a flexible heating device suitable for shafts, pipe fittings and welding structures with different curvatures, which has the advantages of high temperature control precision, uniform heating in the whole field, rapid heating and suitability for complex profiles, can be used for carrying out stress relief treatment, integral or local annealing heat treatment, surface high-temperature quenching treatment, surface coating curing treatment and the like on a large number of structures such as shafts, pipe fittings, welding parts and the like in the fields of aerospace, energy power equipment and the like, and can effectively improve the technical level of heat treatment on the shafts, the pipe fittings, the welding parts and the like.
Background
The fields of aerospace, energy power equipment and the like relate to a large number of shaft parts, pipe fittings, welding parts and the like, such as bearings of gas turbines, main shafts of aero-engines, jet pipes of space shuttles, high-temperature pipelines of nuclear power equipment and the like. During the production process of the shaft, pipe fitting, welding part and the like of the high-end equipment, various heat treatments are inevitably carried out, including stress relief treatment of a welding part, integral or local annealing heat treatment, surface high-temperature quenching treatment, surface coating curing treatment and the like. Two common heat treatment methods are currently available: flame gun heating and electric heating tape heating. The flame gun heating is a heat treatment process in which a flame or a gas which is hot after combustion is sprayed onto the surface of a workpiece through a nozzle and rapidly heated to a high temperature. The method has the advantages of high heating speed, simple equipment and higher flexibility, and is generally used for surface quenching, and the used fuel and combustion improver are usually oxy-acetylene fuel. However, in practical use, the flame gun can only heat a small area at a time, the temperature of the surface of the workpiece is difficult to be uniform, the noise is large, and harmful gas impurities are easily introduced during heating. In addition, the method has high requirements on the process and manual operation experience. The other mode is heating by an electric heating belt, the electric heating belt carries out heat treatment on the surface of a workpiece through an internal resistance wire, but the temperature control precision is very low, the error is often more than 20 ℃, and the temperature control requirement of manufacturing high-end equipment in aerospace and the like cannot be met. In addition, the electric heating belt has low heating rate and large energy consumption, and cannot meet the requirement of rapid heat treatment. In summary, for shaft members, pipe fittings and welding members, the performance of the shaft members, the pipe fittings and the welding members is affected by the heating area, the heating rate, the temperature control precision, the introduction of harmful impurities and the like in the heat treatment process, so that the development of a heat treatment device with the advantages of high temperature control precision, uniform heating in the whole field, rapid heating, suitability for complex profiles and the like is needed for the high-end equipment of the shaft members, the pipe fittings and the welding members.
Disclosure of Invention
The invention aims to overcome the defects of heat treatment on shaft pieces, pipe fittings and welding pieces in the prior art, provides a flexible heating device suitable for shaft pieces, pipe fittings and welding structures with different curvatures, has the advantages of uniform heating in the whole field, quick heating, clean heating without pollution, no impurity, no noise and high temperature control precision (1 ℃), and can carry out heat treatment on shaft shapes, rings, welding pieces and other structures with various sizes in major equipment in the fields of aerospace, energy power and the like.
The invention is realized by adopting the following technical scheme:
be applicable to different camber axle pieces, flexible heating device of pipe fitting and welded structure, including at least one heating module, single heating module includes quartzy material main part, parallel arrangement's water-cooling tank and heating bath have been seted up in this quartzy material main part, water-cooling tank water inlet and water-cooling tank delivery port have been seted up respectively to the both ends of water-cooling tank, and draw forth through a side of quartzy material main part, it has the quartz lamp heater to inlay in the heating bath, and the both ends of quartz lamp heater are together fixed through ceramic insulation protection head and quartzy material main part, the electric wire of quartz lamp heater is drawn forth from the quartzy material main part.
The invention is further improved in that metal clamps are respectively arranged at two ends of the quartz main body.
The invention is further improved in that the quartz material main body is in a long strip shape.
The invention is further improved in that the side surfaces led out from the water inlet of the water cooling tank and the water outlet of the water cooling tank are far away from the heating tank.
The invention is further improved in that the outer wall of the quartz lamp heater adopts quartz glass which can transmit infrared rays and has a high-temperature softening temperature of 1600 ℃, and the tungsten heating wire radiates the infrared rays after being electrified and can penetrate through the transparent quartz main body.
The invention has the further improvement that when in use, aiming at heating samples with different shapes, such as axial, annular and unidirectional non-uniform surface shapes, the flexible heating device is provided with a plurality of heating modules which are arranged on metal bases with different curvatures, and the radiation heat treatment is realized by the combined arrangement of the single heating modules.
The invention has at least the following beneficial technical effects:
the flexible heating device suitable for the shaft parts, the pipe fittings and the welding structures with different curvatures, which is provided by the invention, is assembled by at least one standard heating module, can be spliced into the heating devices with different curvatures according to different part curvature radiuses, can realize the uniform heating in the whole field, the clean heating without pollution, and no impurities and noise are introduced, can be used for carrying out stress relief, annealing treatment, preheating, drying heat treatment and the like on structural workpieces with shaft shapes, rings, welding parts and the like with various sizes, and can greatly improve the heat treatment level of the structural members at present.
Furthermore, metal clamps are arranged on two sides of the quartz main body, so that modular splicing is facilitated.
Furthermore, the outer wall of the quartz lamp heater adopts quartz glass which can transmit infrared rays and has a high-temperature softening temperature of 1600 ℃, and the tungsten heating wire radiates infrared rays after being electrified and penetrates through the transparent quartz main body to radiate and heat the sample. Meanwhile, a water cooling groove in the quartz material main body is used for cooling quartz glass of the shell of the quartz lamp heater.
In conclusion, the quartz lamp heating device can replace the traditional flame gun and electric heating belt heat treatment technology, can be spliced into heating devices with different curvatures according to different part curvature radiuses, carries out remote non-contact heating on a tested sample, further cools a quartz lamp heater through an internal cooling water tank, can realize uniform heating and clean heating in the whole field without pollution, can not introduce impurities or generate noise, and greatly expands the heat treatment capacity of the conventional components.
Drawings
FIG. 1 is a front elevational view of a single heating module of the present invention;
FIG. 2 is a right side elevational view of the construction of a single heating module of the present invention;
FIG. 3 is a top view of the structure of a single heating module of the present invention;
FIG. 4 is a heated elevation view of the small shaft of the present invention;
FIG. 5 is an isometric view of the heating of a small shaft according to the present invention;
FIG. 6 is a heated elevation view of a large shaft of the present invention;
FIG. 7 is an isometric view of a heated large shaft of the present invention;
FIG. 8 is a heating elevation view of a unidirectional non-uniform surface sample according to the present invention;
FIG. 9 is an isometric view of a unidirectional non-uniform surface specimen heating according to the present invention.
Description of reference numerals:
the electric wire is characterized in that the electric wire is 1 a quartz lamp heater, 2 a water cooling groove water inlet, 3 a water cooling groove water outlet, 4 a water cooling groove, 5 a quartz material main body, 6 a quartz lamp heater, 7 a metal clamp, 8 a ceramic insulation protection head, 9 a metal base and 10 a heating sample.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 9, in the flexible heating device applicable to shafts, pipes and welding structures with different curvatures provided by the present invention, a single heating module is composed of 8 parts, as shown in fig. 1 to 3, including a wire 1 of a quartz lamp heater, a water cooling tank water inlet 2, a water cooling tank water outlet 3, a water cooling tank 4, a quartz material body 5, a quartz lamp heater 6, a metal clamp 7 and a ceramic insulation protection head 8.
In the single heating module, a quartz lamp heater 6 and a water cooling tank 3 are mounted on a quartz material body 5. The water inlet 2 of the water cooling tank and the water outlet 3 of the cold water cooling tank are connected on the water cooling tank 4 to provide a cooling water flow channel. The water cooling tank 4 is made of a quartz tube and has good heat resistance, and cooling water in the channel flows to take away heat transferred from the surface of the quartz lamp heater 6, so that the temperature of the surface of the quartz lamp tube is reduced to be lower than the softening temperature, and the quartz lamp heater 6 is cooled. The quartz lamp heating wire is a tungsten heating wire, is positioned on the central axis of the quartz lamp heating lamp tube 6 and is connected with the ceramic insulation protective heads 4 at two sides. Infrared light generated by a tungsten heating wire in the quartz lamp heater 6 is radiated outwards through the quartz material main body to carry out radiant heat treatment on the experimental sample.
The heat treatment heating process for the heating sample 10 with different shapes such as shaft shape, ring shape, unidirectional non-uniform surface and other special shapes is shown in fig. 4 to 9. According to different shapes of samples to be subjected to heat treatment, a plurality of heating modules are arranged on the metal base 9 with different curvatures, and the radiation heat treatment is realized by the combined arrangement of the single heating modules.
The flexible heating device applicable to the high-temperature resistant structures with different curvatures, provided by the invention, can be spliced into heating devices with different curvatures according to different part curvature radiuses through a modular design, can realize full-field uniform high-precision heating, temperature control and clean heating without pollution by combining a quartz lamp radiation heating technology, can not introduce impurities and noise, and greatly improves the heat treatment capacity of the current structural components.

Claims (6)

1. Be applicable to different camber axle pieces, pipe fitting and welded structure's flexible heating device, a serial communication port, including at least one heating module, single heating module includes quartzy material main part (5), water-cooling tank (4) and the heating bath of parallel arrangement have been seted up in this quartzy material main part (5), water-cooling tank water inlet (2) and water-cooling tank delivery port (3) have been seted up respectively to the both ends of water-cooling tank (4), and draw forth through a side of quartzy material main part (5), it has quartz lamp heater (6) to inlay in the heating bath, and the both ends of quartz lamp heater (6) are together fixed through ceramic insulation protection head and quartzy material main part (5), lead out in quartzy material main part (5) is followed in electric wire (1) of quartz lamp heater.
2. Flexible heating device for shaft elements, pipe pieces and welding structures with different curvatures according to claim 1 is characterized in that the two ends of the quartz material body (5) are respectively provided with a metal clamp (7).
3. A flexible heating device for shafts, pipes and welded structures of different curvatures as claimed in claim 1, characterized in that the quartz material body (5) is elongated.
4. The flexible heating device for the shaft parts, the pipe fittings and the welding structures with different curvatures according to claim 1 is characterized in that the side surfaces from which the water inlet (2) and the water outlet (3) of the water cooling tank are led out are far away from the heating tank.
5. The flexible heating device for shaft members, pipe fittings and welding structures with different curvatures as claimed in claim 1, wherein the quartz lamp heater (6) is made of quartz glass which can transmit infrared rays and has a high-temperature softening temperature of 1600 ℃ and the tungsten heating wire radiates infrared rays after being electrified and can pass through the transparent quartz main body.
6. The flexible heating device suitable for shaft members, pipe fittings and welding structures with different curvatures as claimed in claim 1, is characterized in that when in use, aiming at heating samples (10) with shaft-shaped, ring-shaped and unidirectional non-uniform surface shapes with different shapes, the flexible heating device is provided with a plurality of heating modules which are arranged on metal bases (9) with different curvatures, and the radiation heat treatment is realized by performing the combined arrangement of the single heating modules.
CN202010576057.1A 2020-06-22 2020-06-22 Flexible heating device suitable for different curvature shaft pieces, pipe fittings and welding structures Pending CN111910049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010576057.1A CN111910049A (en) 2020-06-22 2020-06-22 Flexible heating device suitable for different curvature shaft pieces, pipe fittings and welding structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010576057.1A CN111910049A (en) 2020-06-22 2020-06-22 Flexible heating device suitable for different curvature shaft pieces, pipe fittings and welding structures

Publications (1)

Publication Number Publication Date
CN111910049A true CN111910049A (en) 2020-11-10

Family

ID=73226984

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010576057.1A Pending CN111910049A (en) 2020-06-22 2020-06-22 Flexible heating device suitable for different curvature shaft pieces, pipe fittings and welding structures

Country Status (1)

Country Link
CN (1) CN111910049A (en)

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