• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1352815 Continuous casting; casting processes MITSUBISHI JUKOGYO KK 10 April 1972 [9 April 1971] 16474/72 Heading B3F A tube having internal and/or external longitudinal fins (the fins on the tube being either all spiral or all straight) is continuously cast with the use of a core 6 and mould 7 either or both being finned and the metal being provided by an electroslag arrangement, e.g. with consumable electrodes 5 of arcuate shape, Fig. 5(a), the molten metal being vibrated, as by vibrators 11 contacting a tubular starter 9. As shown in Fig. 6, the latter has internal spiral fins like those of a tube to be cast and with the cast tube it is rotated by a motor 16 and table 14 as a supportÀ ing plate 17 is lowered. If the fins are straight, withdrawal rolls extract the starter and casting. Cooling water passes to and from the mandrel 6 and mould 7 through pipes 8. At the start, molten slag 12 is retained in the tapered inlet of the cavity by the top of the starter 9 as shown. The top of the starter also melts when the metal melts. During casting, mushy slag forms a heatinsulating and lubricating layer between the metal and casting surfaces. The vibration of the metal facilitates filling of the casting cavity and imparts grain uniformity.
    公开号:SU822759A3
    申请号:SU781769770
    申请日:1978-03-23
    公开日:1981-04-15
    发明作者:Удзийе Акира
    申请人:Мицубиси Дзукогио Кабусики Кайся(Фирма)；
    IPC主号:
    专利说明:

    1 The invention relates to metallurgy, in particular to the production of metal products by the method of electroslag remelting of a consumable electrode. A device for the manufacture of pipes by the electroslag remelting of a consumable electrode is known, comprising internal and external crystallizers and a pallet provided with a vertical displacement drive for drawing out of the mold of the forming ingot l. The disadvantage of this device is the impossibility of obtaining pipes with a ribbed surface. Finned tubes, used, for example, in the chemical industry, have a significant advantage over glass-walled tubes, in particular, in terms of better heat dissipation, thermal efficiency / stiffness, etc. The purpose of the invention is to produce finned tubes with sections of complex shape, located on the inner or outer surface of the tube. The goal is achieved by the fact that the device for electroslapping remelting, containing internal and external crystallizers and the baser by a drive of vertical movement, is additionally equipped with a drive for rotating the pallet, and on the forming surface of one of the cryoalliouvres there is a screw cut that corresponds to the shape of ribs. FIG. Figures 1–4 show variants from products of various shapes, which are obtained in accordance with the proposed proposal; in fig. 5 is a section A-A in FIG. 1, FIG. 6 is a section of explosive in FIG. 2i on fng. 7 is a front view of FIG. 3} in FIG. it mead ahead of fig. 4} in FIG. 9 for the electroslag remelting of the products shown in FIG. 1 on FIG 46 46 for the reprogramming of products not depicted in FIG. 2. Rebriet I (Fig. I) has a cylindrical outer and equal nebulae curled inner teteika, and pn @ @ lgdanenabzheny we see the linear ribs of I, divided by the s limit @@ в we all see Fig. i reyet Ruya J has a cyanarinem and an outer pfenw and a dimensionally curled inner wall, the latter being provided with a multitude of spiral (cut) ribs 2 located in the longitudinal axial direction. In the embodiment shown in FIG. The finned tube 1 has a cylindrical inner wall and a curled outer wall, the latter being provided with a plurality of linear ribs located in the longitudinal axial direction. In the embodiment shown in FIG. 4, the finned tube 1 has spiral ribs 2 on the outer wall. In FIG. 9 shows an apparatus for electroslag remelting of electrons 3 for producing pipe 1 having linear fins on the inner wall, as shown in FIG. 1. According to FIG. 5, the outer surface of the inner crystallizer 4 has waves of the required dimensions in a part of section aa. A part of the internal crystallizer 4, starting from section a - a to section b - b, is narrowed in such a way that the said waves end in a part of section t-b. The next part of the internal crystallizer 4, starting from section L-b to section cc, has a conical shape without such waves. On the other hand, the outer part of the inner mold 4, starting from section a-a to section d-3, has the same diameter and is equipped with waves allowing to make a product of the required dimensions in any section between these parts. The part of the inner shape, starting from the cross-section of the north-west section to the section on the lower end, is narrowed. Both the inner mold 4 and the outer 5 are made of copper and equipped with appropriate water-cooling pipes 6. These crystallizers 4 and 5 are coaxially arranged and made so that the section of the finned tube 1, having the required waveform, is formed in the cavity formed molds 4 and which are maintained at a level sufficiently high to obtain pipe 1 of the required length, while each mold retains its own relative position. For example, the internal crystallizer is maintained by means of a water-cooled pipe 6 connected to its central apex. From the bottom end of the molds 4 and 5, at that time, the cavity formed between them, the torus is located between section aa and section b - b, the gum pipe 7 is inserted. The inner wall of the seed pants 7 has the shape and size of the same; with the shape and size of the final product with wavy ribs. The tube end 7 interacts with pulling rollers 8 connected to a drive motor (not shown) installed under the molds 4 and 5. Vibrators 9 are mounted between the external mold 5 and pulling rollers 8, which are located at one or several points around the circumference products. The molten slag 10 (containing MpO, SiO .; A1, CaF., Etc.) is poured into the trapezoidal and conical cavity formed between the inner 4 and outer 5 crystallizers in that part, which is located at the cross section b-b. and c-c, on the other hand, electrodes 3 are continuously supplied to the molten slag from the upper end of the molds 4 and 5, the source of energy 11 for electroslag remelting is connected to the metal electrodes 3 and to the seed tube 7. In FIG. 10 shows a device for manufacturing a finned tube 1 having on its inner wall the spiral ribs shown in FIG. 2. The inner mold 4 in this case has spiral waves and is designed in such a way that it allows the seed tube 7 to be pulled out with the product located above it during rotation. As a result, the device has a rotation mechanism consisting of a rotary table 12, a gearbox 13, a drive motor 14 and a sliding stand 15 for moving the product downward at a speed equal to the drawing speed. The device works as follows. The process of electroslag remelting consists in the fact that as a bath of liquid metal is formed, the seed tube 7 tons is down and rotated at the required speed, usually corresponding to the deposition rate. At this time, the cavity located between the sections a-d and b-b and formed by the internal crystallizer 4 and the external crystallizer 5 must be completely filled with molten metal to all sections. However, it is almost impossible to make metal droplets fall. electrodes 3 evenly in all corners of each section. For this reason, there is a need to apply a certain amount of vibration to the liquid metal with the help of vibrators 9. In addition, with the help of vibration, a uniform fine-grained metal structure can be obtained throughout the pipe wall thickness. The proposed device allows the production of finned tubes, the use of which in many sectors of the industry is more preferable than pipes with smooth walls.
    权利要求:
    Claims (1)
    [1]
    1. USSR author's certificate No. 329784, cl. C 21 C 5/56, 1970.
    figs
    A - A

    3
    Iput 7
    FIG. eight
    //
    类似技术:
    公开号 | 公开日 | 专利标题
    US2130202A|1938-09-13|Continuously casting pipe
    US3746077A|1973-07-17|Apparatus for upward casting
    US2752648A|1956-07-03|Apparatus for the production of tubular metallic objects
    SU822759A3|1981-04-15|Device for electroslag remelting
    US3683997A|1972-08-15|Electroslag remelting process
    US3625276A|1971-12-07|Centrifugal casting of tubes including slag separation
    EP0249158B1|1991-09-04|A method for continuous casting of metal and an apparatus therefor
    US3581809A|1971-06-01|Continuous casting device
    SU564783A3|1977-07-05|Device for supplying metal under melt level in crystallizer
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    SU349317A1|1980-06-05|Method of producing cylindrical hollow ingots
    SU839148A1|1986-08-15|Mould for continuous casting of metals
    US1277543A|1918-09-03|Hollow ingot and method of making same.
    SU570450A1|1977-08-30|Device for semi-continuous casting of hollow workpieces
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    US1414394A|1922-05-02|Apparatus for casting ingots
    SU1085252A1|1988-10-30|Casting method
    SU1007827A1|1983-03-30|Method of centrifugal casting of steel pipes
    SU448057A1|1974-10-30|Installation for continuous centrifugal casting of hollow billets
    SU1222399A1|1986-04-07|Apparatus for pouring metal into metal-rolling roll mould
    SU997971A1|1983-02-23|Method of producing bi metalic tubular articles
    SU772011A1|1982-11-23|Method and apparatus for continuous casting of hollow iron blanks
    SU1324750A1|1987-07-23|Method of continuous casting to through rectilinear mould
    SU422531A1|1974-04-05|INTERMEDIATE CAPACITY
    SU532464A1|1976-10-25|Continuous ingot casting method
    同族专利:
    公开号 | 公开日
    BE781808A|1972-07-31|
    NL164220B|1980-07-15|
    DE2217418B2|1974-09-19|
    CA993171A|1976-07-20|
    SE375468B|1975-04-21|
    DK133329B|1976-05-03|
    NL7204749A|1972-10-11|
    CH543912A|1973-11-15|
    NL164220C|1980-12-15|
    FR2132794B1|1974-12-13|
    CS199235B2|1980-07-31|
    IT952576B|1973-07-30|
    DE2217418A1|1973-01-04|
    JPS5310530B1|1978-04-14|
    NO135568C|1977-04-27|
    GB1352815A|1974-05-15|
    DE2217418C3|1975-05-15|
    NO135568B|1977-01-17|
    DK133329C|1976-09-27|
    FR2132794A1|1972-11-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1596960A|1967-12-21|1970-06-22|GB2222792B|1988-09-14|1993-01-20|Showa Denko Kk|Method for continuous casting a hollow metallic ingot and apparatus therefor|
    ID24579A|1998-12-22|2000-07-27|Outokumpu Oy|METHODS TO MAKE ELEMENTS OF SOIL COOLING AND COOLING ELEMENTS MADE WITH THESE METHODS|
    CN103418761B|2013-08-12|2015-05-27|中国重型机械研究院股份公司|Polygon curved surface inner wall crystallizer for continuous casting of tube blank|
    RU2754336C2|2019-10-07|2021-09-01|Александр Викторович Михалёв|Method for continuous casting of hollow bills and a device for its use|
    RU2758485C1|2020-09-16|2021-10-28|Олег Степанович Лехов|Method for continuous casting of hollow blanks and a device for its implementation|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2182371A|JPS5310530B1|1971-04-09|1971-04-09|
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