WO2012040963A1 - 洁净金属锭模 - Google Patents

洁净金属锭模 Download PDF

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Publication number
WO2012040963A1
WO2012040963A1 PCT/CN2010/078979 CN2010078979W WO2012040963A1 WO 2012040963 A1 WO2012040963 A1 WO 2012040963A1 CN 2010078979 W CN2010078979 W CN 2010078979W WO 2012040963 A1 WO2012040963 A1 WO 2012040963A1
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WIPO (PCT)
Prior art keywords
ingot mold
ridge
clean metal
disposed
heat insulation
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PCT/CN2010/078979
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English (en)
French (fr)
Inventor
朱书成
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西峡龙成特种材料有限公司
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Filing date
Publication date
Application filed by 西峡龙成特种材料有限公司 filed Critical 西峡龙成特种材料有限公司
Priority to EP10857726.3A priority Critical patent/EP2623231B1/en
Priority to US13/876,933 priority patent/US9016350B2/en
Priority to KR1020137011197A priority patent/KR101520555B1/ko
Publication of WO2012040963A1 publication Critical patent/WO2012040963A1/zh
Priority to IN790MUN2013 priority patent/IN2013MN00790A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/06—Ingot moulds or their manufacture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/06—Ingot moulds or their manufacture
    • B22D7/064—Cooling the ingot moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/06—Ingot moulds or their manufacture
    • B22D7/08—Divided ingot moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/06—Ingot moulds or their manufacture
    • B22D7/10—Hot tops therefor
    • B22D7/102—Hot tops therefor from refractorial material only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D9/00—Machines or plants for casting ingots
    • B22D9/006—Machines or plants for casting ingots for bottom casting

Definitions

  • the invention belongs to the technical field of metallurgical casting equipment, and in particular relates to a clean metal ingot mold.
  • the upper part of the ingot formed is centered, and there is a 'V 'type segregation, inclusions enrichment area, segregation and inclusions in this range are not easily removed because they are present in the upper middle part of the ingot, which affects the quality of the resulting metal, which is not conducive to the later rolling out of the acrobatics. metal.
  • the metal combined with the segregation and inclusions is not easily raised from the impurities, which naturally affects the increase in the yield of the metal.
  • Electroslag remelting in the secondary melting refining process requires a large amount of electric energy, which also restricts large-scale industrial production, and the slag contains a large amount of calcium fluoride, which pollutes the environment, and must be equipped with dust removal and defluoridation devices. .
  • the efficiency is particularly low, especially the arc generated is also very harmful to the crystallizer.
  • a crystal mold mold can only refine more than ten furnace steels by electroslag furnace remelting method, which increases the production cost.
  • the invention provides a clean metal ingot mold which saves energy, reduces pollutant discharge, has high production efficiency and long service life.
  • converter, electric furnace, LF furnace, VD The molten steel smelted by the furnace can be directly poured into the equipment.
  • the clean steel ingot can be obtained, the energy consumption is greatly reduced, the production efficiency is greatly improved, the production efficiency is reduced, and the production cost is reduced.
  • a clean metal ingot mold comprising an ingot mold body and a heat retaining body disposed on the ingot mold body, wherein the ingot mold bottom template is provided with at least one ridge connected to the bottom mold plate.
  • One of the ridges of the ridge is disposed on a center line of the bottom template, and the remaining ridges are substantially perpendicular to the base ridge.
  • a water cooling mechanism is disposed in the ridge.
  • An insulating heating and heat insulating plate is disposed on the ridge, and the ridge and the insulating heating and insulating plate divide the space inside the ingot mold into a plurality of independent cavity units.
  • the isolated heating insulation board is a high temperature resistant board.
  • a strong heating member is disposed in the high temperature resistant plate.
  • a casting system is disposed on the body of the ingot mold.
  • the ingot mold body is a water-cooled ingot mold.
  • the ingot mold body is a common ingot mold.
  • the inner wall of the ingot mold body is provided with a card slot for use with the isolating heat insulation mechanism, and both ends of the isolation heat insulation mechanism are disposed in the card slot, and the inner wall of the heat insulation is provided with a card slot, and the upper card is disposed The slot is engaged with the connection portion of the isolated heat insulation mechanism.
  • the ridge can generate the 'V generated during the liquid metal crystallization process in the ingot mold.
  • the 'type impurity area moves up to the thermal insulation contact zone, so that the impurities are more deviated from the center of the ingot, and more concentrated, so that the impurities can be processed later to achieve metal cleanliness.
  • a water cooling mechanism is arranged in the ridge to help the metal in the ingot mold to rapidly cool and crystallize, and plays an important role in the directional solidification of the liquid metal.
  • One of the foundation ridges is disposed on the center line of the bottom template, and the remaining ridges are substantially perpendicular to the base ridges, and the heating and insulation board is isolated on the ridges, and the ridges and the isolation heating and insulation board divide the space in the ingot mold body into a plurality of independent bodies.
  • the cavity unit so the cavity unit is distributed in two rows in the ingot mold body.
  • each individual cavity unit has a solidification starting surface that rapidly conducts heat outward, that is, with the circumference.
  • the liquid metal in contact with the water-cooled template or other template is rapidly solidified, and slowly crystallizes in the direction of isolating the heat insulation board, and crystallizes to form crystals.
  • the inclusions and segregates in the liquid metal are rushed in the direction of non-crystallization.
  • the part close to the insulation heat insulation mechanism is finally solidified because it is far away from the low temperature.
  • Most of the inclusions and segregates in the liquid metal are concentrated in the part which is in contact with the insulation heat insulation board after the liquid metal is directionally solidified, which is easy.
  • the enriched alloy segregation and inclusions are removed by flame or other processing methods, thereby realizing the segregation and inclusion transfer and removal inside the ingot, thereby achieving the purpose of purifying the ingot.
  • it can purify the interior of the metal without secondary melting, save a lot of energy, and avoid the harm of hydrogen white spot caused by electroslag remelting to the ingot, and the production efficiency is significantly improved.
  • the cost has dropped significantly.
  • a strong heat-generating component is arranged, and when the liquid mold is not poured into the mold, the temperature is raised in advance to avoid absorbing the heat of the metal melt.
  • the existence of the isolated thermal insulation board can ensure that the part in contact with it is always in a high temperature state, and most of the inclusions and segregates in the liquid metal are concentrated after the liquid metal is directionally solidified.
  • the area is enriched in the area in contact with the insulated thermal insulation board, which is easier to handle.
  • the invention can be arranged into two rows of a plurality of cavity units according to requirements, one ingot is ingot, and one runner is cleaned, which can realize clean crystallization solidification of a plurality of pieces or even dozens of metal ingots, thereby greatly improving work efficiency and reducing production cost. .
  • FIG. 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Figure 2 is a top view of Figure 1.
  • FIG 3 is a schematic structural view of a second embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a body portion of an ingot mold according to Embodiment 3 of the present invention.
  • a clean metal ingot mold including the ingot mold body 1 and the heat preservation provided on the ingot mold body 2
  • a ridge 3 connected to the bottom template is disposed on the ingot mold template.
  • One of the base ridges is disposed on a center line of the bottom template, and a water cooling mechanism 5 is disposed in the ridge 3 at the ridge 3 Circulating water for cooling.
  • the ingot mold body is a water-cooled ingot mold.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • a clean metal ingot mold including the ingot mold body 1 and the heat preservation provided on the ingot mold body 2
  • a ridge 3 connected to the bottom template is disposed on the ingot mold template.
  • One of the base ridges is disposed on a center line of the bottom template, and a water cooling mechanism 5 is disposed in the ridge 3 at the ridge 3 Circulating water for cooling.
  • the ingot mold body is a water-cooled ingot mold.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • a clean metal ingot mold including the ingot mold body 1 and the thermal insulation provided on the ingot mold body 2
  • a ridge 3 connected to the bottom template is disposed on the ingot mold template.
  • the base ridge is disposed on the center line of the bottom plate to provide a water cooling mechanism 5 in the ridge 3.
  • the ridge 3 Isolation heating insulation board 4, ridge 3 and isolation heating insulation board 4 The internal space of the ingot mold is divided into two independent cavity units.
  • the isolated heating and heat insulating plate is a high temperature resistant plate, and a strong heating member is disposed in the high temperature resistant plate.
  • the ingot mold body is a water-cooled ingot mold.
  • the inner wall of the ingot mold body is provided with a card slot for use with the isolating heat insulation mechanism, and both ends of the isolation heat insulation mechanism are disposed in the card slot, and the inner wall of the heat insulation is provided with a card slot, and the upper card is disposed The slot is engaged with the connection portion of the isolated heat insulation mechanism.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • a clean metal ingot mold including the ingot mold body 1 and the heat preservation provided on the ingot mold body 2
  • the ingot mold bottom template is provided with two ridges 3 connected to the bottom template, one vertical and one horizontal and two intersecting perpendicularly, all disposed on the center line of the bottom template, and the water ridge mechanism 5 is arranged in the ridge 3
  • the ridge 3 Isolation heating insulation board 4, ridge 3 and isolation heating insulation board 4 The inner space of the ingot mold is divided into four independent cavity units.
  • the isolated heating and heat preservation board is a high temperature resistant board, and a strong heating part is arranged in the high temperature resistant board, and a casting system is arranged on the body of the ingot mold, and the ingate 5 Set in the center of the bottom template of four separate cavity units.
  • the ingot mold body is a common ingot mold.
  • the inner wall of the ingot mold body is provided with a card slot for use with the isolating heat insulation mechanism, and both ends of the isolation heat insulation mechanism are disposed in the card slot, and the inner wall of the heat insulation is provided with a card slot, and the upper card is disposed
  • the slot is engaged with the connection portion of the isolated heat insulation mechanism.
  • a clean metal ingot mold including the ingot mold body 1 and the thermal insulation provided on the ingot mold body 2
  • a base ridge 31 is disposed on the ingot die bottom plate, and the remaining four ridges 32 are perpendicular to the base ridge 31.
  • the ridge is provided with a water cooling mechanism 5, the base ridge 31 and the four ridges 32.
  • Isolation heating insulation board 4, ridge and isolation heating insulation board 4 The inner space of the ingot mold is divided into ten independent cavity units.
  • the isolated heating and heat preservation board is a high temperature resistant board, and a strong heating part is arranged in the high temperature resistant board, and a casting system is arranged on the body of the ingot mold, and the ingate 5 Set in the center of the bottom template of ten independent cavity units.
  • the ingot mold body is a water-cooled ingot mold.
  • the inner wall of the ingot mold body is provided with a card slot for use with the isolating heat insulation mechanism, and both ends of the isolation heat insulation mechanism are disposed in the card slot, and the inner wall of the heat insulation is provided with a card slot, and the upper card is disposed The slot is engaged with the connection portion of the isolated heat insulation mechanism.
  • the scope of protection of the present invention is not limited to the above embodiments, and it is within the scope of the present invention to provide at least one ridge connected to the bottom template on the ingot mold template. Further, the present invention is not limited to a common ingot mold, a water-cooled ingot mold, and is also suitable for a mold ingot mold.
  • the technical solution of the present invention can be manufactured or used in the industry, which has industrial applicability.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Forging (AREA)

Description

洁净金属锭模 技术领域
本发明属于冶金铸造设备技术领域，具体涉及一种洁净金属锭模。
背景技术
在公知技术中，在普通锭模浇铸结束以后，生成的铸锭中上部偏中心位置，存在一个' V '型偏析物、夹杂物富集区，这一个范围内的偏析物、夹杂物因为存在于铸锭的中上部，所以不容易清除，影响生成金属的品质，不利于后期轧出含杂技少的金属。而与偏析物、夹杂物结合部分的金属又不易从杂质中有效提出，自然影响金属收得率的提高。
技术问题
当前，全世界多数金属铸锭仍是这一种方式浇铸出来的，所以大量的金属未能得到高质量收得，故不能有效充分利用，这就带来了大量的能源浪费。而且洁净金属的实现，往往还需要电渣重熔等二次熔化精炼程序，浪费了大量的人力、物力，给环境也带了巨大压力。 不符合当前节能减排、绿色环保的发展要求，这也是金属熔炼产业的巨大损失。电渣重熔二次熔化精炼过程中，但是钢锭再次熔化需要耗费大量的电能，也制约着大规模工业化生产，而且渣料中含大量的氟化钙，污染环境，必须设置除尘和去氟装置。另外，效率还特别低，特别是产生的电弧对结晶器的伤害也非常严重，一个结晶器铸模采用电渣炉重熔方式只能炼十多炉的钢，提高了生产的成本。
技术解决方案
本发明提供一种节约能源、减少污染物排放、生产效率高、使用寿命长的洁净金属锭模。采用这种设备后，转炉、电炉、 LF 炉、 VD 炉冶炼出的钢水可直接浇入该设备内，通过简单处理，即能获得洁净钢铸锭，大幅降低能耗，大幅提高，生产效率，降低生产成本。
一种洁净金属锭模，包括锭模本体和设置在锭模本体上的保温冒，所述锭模底模板上设置至少一条与底模板连接的凸脊。
所述凸脊中其中一条基础凸脊，它设置在底模板的中线上，其余凸脊与该基础凸脊基本垂直。
所述凸脊内设置水冷机构。
所述凸脊上面设置隔离加热保温板，凸脊和隔离加热保温板将锭模本体内空间分割成多个独立的模腔单元。
所述隔离加热保温板是耐高温板。
所述耐高温板内设置强加热部件。
所述锭模本体上设置浇铸系统。
所述锭模本体为水冷锭模。
所述锭模本体为普通锭模。
所述锭模本体内壁上设置与隔离发热保温机构配合使用的卡槽，所述隔离发热保温机构的两端设置在卡槽内，所述保温冒的内壁上设置上卡槽，所述上卡槽与隔离发热保温机构的连接部位卡接。
有益效果
由于本发明在锭模底模板上设置至少一条与底模板连接的凸脊，所述凸脊可以将锭模内液态金属结晶过程中产生的' V '型杂质区上移，到保温冒接触区，使得杂质更偏离铸锭中心，而且更集中，方便后期对杂质进行处理，实现金属的洁净。凸脊内设置水冷机构，帮助锭模内金属快速降温结晶，并对液态金属的定向凝固起到重要作用。其中一条基础凸脊设置在底模板的中线上，其余凸脊与该基础凸脊基本垂直，凸脊上隔离加热保温板，凸脊和隔离加热保温板将锭模本体内空间分割成多个独立的模腔单元，所以模腔单元在锭模本体内呈两排分布，在液态金属凝固结晶的过程中，每个独立的模腔单元都有快速向外导热的凝固起始面，即与周向模板接触的面，还有与隔离发热保温板接触的凝固终止面，与水冷模板或其他模板接触的液态金属快速凝固，并向隔离发热保温板的方向慢慢结晶，在结晶凝固形成晶体的过程中将液态金属内的夹杂物和偏析物往未结晶的方向赶， 靠近隔离发热保温机构的部位因远离低温而最后凝固，液态金属内绝大部分的夹杂物和偏析物在液态金属定向凝固后最后都富集在与隔离发热保温板接触的部分，这就很容易用火焰或其他加工的方法将富集的合金偏析物、夹杂物去除，从而实现了铸锭内部偏析物、夹杂物转移、清除，达到了净化铸锭之目的。与现有电渣重熔技术相比，无须二次熔化，即能实现金属内部的净化，节约大量能源，同时可避免电渣重熔给铸锭带来氢白点的危害，生产效率显著提高，成本显著下降。在述隔离发热保温板内设置强发热部件，可以在锭模未浇进液态金属时，就提前升温，避免吸收金属熔液的热量， 而且在液态金属定向凝固的过程中，隔离发热保温板的存在可以保证与其接触的部分一直处在高温的状态，液态金属内绝大部分的夹杂物和偏析物在液态金属定向凝固后更为集中地富集在与隔离发热保温板接触的区域，更易处理。本发明根据需要可设置成两排多个模腔单元，一次铸锭，清理一次浇道，可以实现多块甚至数十块金属锭的洁净结晶凝固，大大的提高了工作效率，降低了生产成本。
附图说明
下面结合附图对本发明的具体实施例作进一步详细的说明。
图 1 为本发明实施例一的结构示意图。
图 2 为图 1 的俯视图。
图 3 是本发明实施例二的结构示意图。
图 4 为本发明实施例三中锭模本体部分的结构示意图。
本发明的最佳实施方式
如图 1 所示：一种洁净金属锭模，包括锭模本体 1 和设置在锭模本体 1 上的保温冒 2 ，所述锭模底模板上设置一条与底模板连接的凸脊 3 。所述其中一条基础凸脊设置在底模板的中线上，所述凸脊 3 内设置水冷机构 5 ，在凸脊 3 通循环水，用于降温。所述锭模本体为水冷锭模。
本发明的实施方式
实施例一：
如图 1 所示：一种洁净金属锭模，包括锭模本体 1 和设置在锭模本体 1 上的保温冒 2 ，所述锭模底模板上设置一条与底模板连接的凸脊 3 。所述其中一条基础凸脊设置在底模板的中线上，所述凸脊 3 内设置水冷机构 5 ，在凸脊 3 通循环水，用于降温。所述锭模本体为水冷锭模。
实施例二：
如图 2 所示：一种洁净金属锭模，包括锭模本体 1 和设置在锭模本体 1 上的保温冒 2 ，所述锭模底模板上设置一条与底模板连接的凸脊 3 。所述其中一条基础凸脊设置在底模板的中线上所述凸脊 3 内设置水冷机构 5 。所述凸脊 3 上面设置隔离加热保温板 4 ，凸脊 3 和隔离加热保温板 4 将锭模本体内空间分割成两个独立的模腔单元。所述隔离加热保温板是耐高温板，所述耐高温板内设置强加热部件。所述锭模本体为水冷锭模。所述锭模本体内壁上设置与隔离发热保温机构配合使用的卡槽，所述隔离发热保温机构的两端设置在卡槽内，所述保温冒的内壁上设置上卡槽，所述上卡槽与隔离发热保温机构的连接部位卡接。
实施例三：
如图 3 所示：一种洁净金属锭模，包括锭模本体 1 和设置在锭模本体 1 上的保温冒 2 ，所述锭模底模板上设置两条与底模板连接的凸脊 3 ，一纵一横两条相交叉垂直，都设置在底模板的中线上，所述凸脊 3 内设置水冷机构 5 ，所述凸脊 3 上面设置隔离加热保温板 4 ，凸脊 3 和隔离加热保温板 4 将锭模本体内空间分割成四个独立的模腔单元。所述隔离加热保温板是耐高温板，耐高温板内设置强加热部件，所述锭模本体上设置浇铸系统，内浇口 5 设置在四个独立的模腔单元的底模板中心。所述锭模本体为普通锭模。所述锭模本体内壁上设置与隔离发热保温机构配合使用的卡槽，所述隔离发热保温机构的两端设置在卡槽内，所述保温冒的内壁上设置上卡槽，所述上卡槽与隔离发热保温机构的连接部位卡接。
如图 4 所示：一种洁净金属锭模，包括锭模本体 1 和设置在锭模本体 1 上的保温冒 2 ，所述锭模底模板上设置一条基础凸脊 31 ，其余四条凸脊 32 与基础凸脊 31 垂直，所述凸脊内设置水冷机构 5 ，所述基础凸脊 31 和四条凸脊 32 上面都设置隔离加热保温板 4 ，凸脊和隔离加热保温板 4 将锭模本体内空间分割成十个独立的模腔单元。所述隔离加热保温板是耐高温板，耐高温板内设置强加热部件，所述锭模本体上设置浇铸系统，内浇口 5 设置在十个独立的模腔单元的底模板中心。所述锭模本体为水冷锭模。所述锭模本体内壁上设置与隔离发热保温机构配合使用的卡槽，所述隔离发热保温机构的两端设置在卡槽内，所述保温冒的内壁上设置上卡槽，所述上卡槽与隔离发热保温机构的连接部位卡接。
本发明的保护范围不局限于上述实施例，只要所述锭模底模板上设置至少一条与底模板连接的凸脊，都发属于本发明的保护范围之内。另外，本发明也不仅局限于普通锭模，水冷锭模，而且也适合于结晶器锭模。
工业实用性
本发明的技术方案可以在工业中制造或使用，其具有工业实用性。

Claims (10)

  1. 一种洁净金属锭模，包括锭模本体和设置在锭模本体上的保温冒，其特征在于：所述锭模底模板上设置至少一条与底模板连接的凸脊。
  2. 如权利要求 1 所述的洁净金属锭模，其特征在于：所述凸脊中其中一条凸脊为基础凸脊，它设置在底模板的中线上，其余凸脊与该基础凸脊基本垂直。
  3. 如权利要求 1 所述的洁净金属锭模，其特征在于：所述凸脊内设置水冷机构。
  4. 如权利要求 1 、 2 或 3 所述的洁净金属锭模，其特征在于：所述凸脊上面设置隔离加热保温板，凸脊和隔离加热保温板将锭模本体内空间分割成多个独立的模腔单元。
  5. 如权利要求 4 所述的洁净金属锭模，其特征在于：所述隔离加热保温板是耐高温板。
  6. 如权利要求 5 所述的洁净金属锭模，其特征在于：所述耐高温板内设置强加热部件。
  7. 如权利要求 4 所述的洁净金属锭模，其特征在于：所述锭模本体上设置浇铸系统。
  8. 如权利要求 4 所述的洁净金属锭模，其特征在于：所述锭模本体为水冷锭模。
  9. 如权利要求 4 所述的洁净金属锭模，其特征在于：所述锭模本体为普通锭模。
  10. 如权利要求 4 所述的洁净金属锭模，其特征在于：所述锭模本体内壁上设置与隔离发热保温机构配合使用的卡槽，所述隔离发热保温机构的两端设置在卡槽内，所述保温冒的内壁上设置上卡槽，所述上卡槽与隔离发热保温机构的连接部位卡接。
PCT/CN2010/078979 2010-09-30 2010-11-23 洁净金属锭模 WO2012040963A1 (zh)

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