WO2020078080A1 - 一种金属板带材辊式淬火流量分区控制装置 - Google Patents

一种金属板带材辊式淬火流量分区控制装置 Download PDF

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Publication number
WO2020078080A1
WO2020078080A1 PCT/CN2019/099732 CN2019099732W WO2020078080A1 WO 2020078080 A1 WO2020078080 A1 WO 2020078080A1 CN 2019099732 W CN2019099732 W CN 2019099732W WO 2020078080 A1 WO2020078080 A1 WO 2020078080A1
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Prior art keywords
ring sleeve
water distribution
spiral
roller
distribution ring
Prior art date
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Ceased
Application number
PCT/CN2019/099732
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English (en)
French (fr)
Inventor
付天亮
韩毅
王昭东
李勇
田勇
李家栋
邓想涛
王丙兴
刘国怀
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Northeastern University China
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Northeastern University China
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Priority to US17/276,781 priority Critical patent/US12018342B2/en
Publication of WO2020078080A1 publication Critical patent/WO2020078080A1/zh
Anticipated expiration legal-status Critical
Ceased 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
    • C21D1/62—Quenching devices
    • C21D1/667—Quenching devices for spray quenching
    • 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
    • C21D11/00—Process control or regulation for heat treatments
    • 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
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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

Definitions

  • the invention belongs to the technical field of metal plate strip heat treatment equipment, and relates to a metal plate strip roll quenching flow zone control device.
  • the heat treatment of metal sheet and strip involves normalizing, quenching, tempering, controlled cooling, and solid solution.
  • quenching, controlled cooling, and solid solution require heating the metal sheet and strip to a certain temperature (generally ⁇ 800 °C)
  • Water cooling is used to reduce the final cooling temperature of the process at a certain cooling rate to achieve the purpose of improving the internal structure and structure of the metal and improving performance.
  • the heating process is usually completed by a roller hearth heat treatment furnace, and the quenching and controlled cooling are completed by a roller quenching machine.
  • the roller quenching machine has strong cooling capacity, uniform cooling, and good sheet and strip shape after cooling. It can be used for carbon steel, stainless steel, special alloy, titanium alloy, aluminum alloy and other metal plate and strip quenching, solid solution, controlled cooling and other production , Is the main cooling equipment form of large heat treatment line.
  • the roller quenching machine adopts the jet impact quenching method, high-pressure and large-flow cooling water impacts the upper and lower surfaces of the plate strip at high speed, pierces the surface steam film, and realizes direct single-phase forced convection heat exchange with the wall surface.
  • the wall surface has high heat exchange efficiency and heat exchange. Good control.
  • the high-pressure cooling section of the roller quenching machine is the main process section of the temperature drop of the metal plate and strip material. It has a large cooling rate and high cooling uniformity requirements.
  • the shape of the wall water flow determines the heat flux density distribution, which in turn determines the uniformity of heat transfer on the surface, affects the shape of the plate and the performance distribution of the metal plate and strip after quenching, and is the key control parameter in the quenching process.
  • the current roller quenching machine generally uses spiral rollers, and the spiral drainage grooves of the spiral rollers are used to adjust the direction of the water flow of the plate and strip wall, and the residual cooling water of the plate and strip wall is discharged more quickly.
  • the existing spiral roller system of the high-pressure cooling section of the roller quenching machine has the following problems: 1) In order to realize the rapid discharge of the residual water on the surface of the metal plate and strip material, the spiral roller is spirally reversed along the center line on both sides, and the spiral roller center exists Processing groove, where the longitudinal water flow of the metal plate and strip is concentrated at the processing groove, which affects the uniformity of the water flow of the entire plate; 2) In order to improve the drainage efficiency of the slit nozzle of the high-pressure cooling section of the roller quenching machine, the width of the spiral roller behind the slit nozzle is 1/4 And 3/4 design drainage channel, the drainage channel affects the uniformity of the width of the plate and strip, resulting in plate shape after quenching.
  • Patent CN107142362A discloses a measuring device and method for measuring the uniformity of the flow of the quencher in the width direction, and the distribution of the density of the water flow in the nozzle direction is measured by a special collecting tank-type measuring device.
  • the main function of the device is to measure the uniformity of the nozzle flow in the width direction, which has nothing to do with the quenching flow zone control device of the roller quencher of the present invention.
  • Patent CN108277339A discloses a steel plate heat treatment and quenching process control system, including primary control of the quenching machine and secondary control of the quenching machine.
  • the invention is an optimization system based on heat treatment quenching process control, and has nothing to do with the quenching flow zone control device of the roller quenching machine of the present invention.
  • Patent CN108180816A discloses a method for quickly measuring the gap nozzle of the quenching machine, by applying lubricating oil to the test device, measuring the jet angle of the slit nozzle and the position of the jet point of the upper and lower nozzles. This method is a measurement method for improving the jet flow accuracy of the nozzle of the roller quencher, and has nothing to do with the zoned control device for the quenching flow of the roller quencher of the present invention.
  • the object of the present invention is to provide a metal plate strip roll quenching flow zone control device, which can realize the uniform distribution of the surface water flow of the metal plate strip in the cooling process of the high pressure cooling section of the roll quenching machine, and realize the rapid removal of residual cooling water. Improve the uniformity of cooling in the length, width and thickness direction of the roller quenching machine to achieve high straightness and high uniformity quenching.
  • a metal plate strip roll quenching flow zone control device which comprises a middle part water ring sleeve and a side part water ring sleeve.
  • the middle part water ring sleeve is installed behind the spiral nozzle and high density of the gap nozzle of the high pressure cooling section of the roll quencher.
  • the processing groove at the middle of the spiral roller behind the nozzle; the edge part of the water ring sleeve is installed at the processing groove at the position of 1/4 and 3/4 of the width of the spiral roller behind the nozzle of the high-pressure cooling section of the roller quenching machine.
  • the middle part of the water ring sleeve includes the upper left semicircular water distribution ring sleeve, the lower left semicircular water distribution ring sleeve, the upper right semicircular water distribution ring sleeve, the lower right semicircular water distribution ring sleeve, four
  • the inner diameter of the semi-circular water distribution ring sleeve is the same as the outer diameter of the processing groove in the middle of the spiral nozzle of the high-pressure cooling section of the roller quencher and the rear spiral roller of the high-density nozzle;
  • the outer diameter of the spiral roller of the high-pressure cooling section of the quenching machine is 5mm ⁇ 10mm smaller, the outer surface of the semicircular water distribution ring is designed with a spiral drainage groove, the upper left semicircular water distribution ring sleeve, and the lower left semicircular water distribution ring sleeve
  • the rotation direction of the spiral drainage groove on the outer surface is consistent with the rotation direction of the drainage groove
  • the side water ring sleeve includes an upper semicircular water distribution ring sleeve, a lower semicircular water distribution ring sleeve, the inner diameter of the two semicircular water distribution ring sleeves and the gap between the nozzle of the high pressure cooling section of the roller quencher and the width of the spiral roller after 1 / 4 and 3/4 positions have the same outer diameter of the processing groove; the outer diameters of the two semicircular water distribution ring sleeves are the same and are 5mm ⁇ 10mm smaller than the outer diameter of the spiral roller of the high-pressure cooling section of the roller quenching machine.
  • the semicircular water distribution ring The outer surface of the sleeve is designed with a spiral drainage groove, and the spiral drainage groove rotates in the same direction as the spiral roller drainage groove connected with it.
  • the above spiral drainage groove has a groove depth of 6 mm to 8 mm and a groove width of 20 mm to 30 mm.
  • the above middle water ring sleeve further includes two connection plates, and the connection plate is provided with bolt fixing holes, which are connected with the left and right upper semicircular water distribution ring sleeves and the left and right lower semicircular water distribution ring sleeves.
  • the connection of the left and right upper semi-circular water distribution ring sleeves and the left and right lower semi-circular water distribution ring sleeves is provided with a connecting plate installation groove, and the size is consistent with the connecting plate.
  • the water ring sleeve on the side part further includes two connecting plates, and the connecting plate is provided with bolt fixing holes, and the bolt sink holes on the outer surface at the junction with the upper semicircular water divider ring sleeve and the lower semicircular water divider ring sleeve Correspondingly, it is convenient to install the imprisoned bolts.
  • the connection place of the upper semi-circular water distribution ring sleeve and the lower semi-circular water distribution ring sleeve is provided with a connecting plate installation groove, and the size is consistent with the connecting plate.
  • the middle part of the water ring sleeve is installed at the middle of the spiral groove of the high-pressure cooling section of the roller quencher and the processing groove of the middle of the spiral roller of the high-density nozzle, which not only plays the role of water blocking, but also plays the role of water distribution and drainage. It is convenient for the spiral roller of the high-pressure cooling section of the roller quencher to discharge the cooling water in the middle of the slit nozzle and the high-density nozzle to both sides; the side water ring sleeve is installed on the slit nozzle of the high-pressure cooling section of the roller quenching machine.
  • the processing groove at 3/4 position not only plays a role of water blocking, but also plays a role of water separation and drainage, which is convenient for the spiral roller of the high-pressure cooling section of the roller quencher to uniformly cool the cooling water at the edge of the slit nozzle to the edge of the metal plate and strip Discharge; the jet flow of the high-density nozzle of the high-pressure cooling section of the roller quencher is less than that of the gap nozzle, and the disordered flow of the water flow caused by the accumulation of residual water on the edge of the plate and strip is not obvious.
  • the water ring sleeves on the side parts are not installed in the 1/4 and 3/4 positions.
  • the metal plate and strip roll quenching flow zone control device has the following advantages:
  • the water ring sleeve in the middle part can not only realize the function of the slit nozzle of the high-pressure cooling section of the roller quencher and the middle cooling water of the high-density nozzle, but also realize the function of cooling water drainage.
  • the width of the metal plate and strip is increased.
  • the uniformity of cooling to the central surface improves the drainage efficiency, and thus the heat exchange efficiency.
  • the water ring sleeve on the side part can effectively lead the cooling water of the slit nozzle of the high-pressure cooling section of the roller quencher to the 1/4 and 3/4 positions in order to the edge of the plate and strip, to prevent the accumulation of local cooling residual water caused by cooling Problems such as uniformity and cooling efficiency reduction; at the same time, it plays a part of the water blocking function, preventing the cooling water from the gap nozzle of the high-pressure cooling section of the roll quencher from 1/4 and 3/4 to the next cooling zone through the spiral roller processing groove To improve the uniformity of regional heat transfer.
  • the water distribution ring sleeve has the advantages of convenient disassembly and assembly, compact structure, long service life, and does not damage the surface quality of the metal plate and strip.
  • FIG. 1 is a layout diagram of a metal plate strip roll quenching flow zone control device in the present invention
  • Figure 2 is the outline and structure of the metal plate strip roll quenching flow zone control device in the present invention.
  • Embodiment 1 provides a specific implementation process of a metal plate and strip roll quenching flow zone control device of the present invention, as shown in FIG. 1. After entering the high-pressure cooling section 2 of the roll quencher, the sheet and strip 1 passes through the slit nozzle 3, the spiral nozzle 4 after the slit nozzle, the high-density nozzle 5 and the high-density nozzle after the spiral roller 6.
  • the cooling water in the middle of the slit nozzle 3 passes through the slit nozzle and part of the water ring sleeve 7 in the spiral roller 4 is divided into two sides in an orderly manner, which prevents the sheet and strip 1 from being wide to the middle
  • the cooling water is deposited to achieve an orderly and uniform discharge of the cooling water to both sides.
  • the slit nozzle 3 is wide to the 1/4 and 3/4 positions near the cooling water.
  • the water ring sleeve 8 on the side of the spiral roller 4 is directed to the plate and strip respectively 1.
  • the orderly export of the width to both sides not only prevents the cooling water from accumulating near the 1/4 and 3/4 positions of the width of the sheet and strip 1, but also realizes the orderly and uniform export of the cooling water to the left and right.
  • the plate and strip 1 passes through the high-density nozzle and the spiral roller 6, the cooling water in the middle of the high-density nozzle 5 passes through the high-density nozzle.
  • part of the water ring sleeve 7 in the spiral roller 6 is divided into two sides in an orderly manner, which prevents the plate and strip 1 from being wide to the middle Silt cooling water, and realize the orderly and uniform discharge of cooling water to both sides.
  • the plate strip 1 Since the high-density nozzle 5 jet cooling water volume is smaller than the gap nozzle 3, the plate strip 1 is wide to the vicinity of 1/4 and 3/4 positions. 1 The uneven cooling effect of the surface is very small.
  • the spiral roll 6 behind the high-density nozzle is not designed with the water ring sleeve 8 at the side 1/4 and 3/4.
  • Embodiment 2 provides a specific installation process of a metal plate and strip roll quenching flow zone control device of the present invention, as shown in FIGS. 1 and 2.
  • the middle part of the water ring sleeve 7 is installed in the high-pressure cooling section 2 of the roller quenching machine 2 after the slit nozzle spiral roller 4 or the high-density nozzle rear spiral roller 6 in the middle of the processing groove.
  • When installing first install the upper left semi-circular water distribution ring sleeve 9, right
  • the semi-circular water distribution ring sleeve 10 is aligned and placed in the high-pressure cooling section 2 of the roller quencher.
  • the spiral roller 4 or the high-density nozzle rear spiral roller 6 is in the middle of the processing groove.
  • the connecting plate 12, the bolt fixing holes 13 on the connecting plate 12 correspond to the bolt sink holes 14 on the outer surface of the upper left semicircular water distribution ring sleeve 9 and the right upper semicircular water distribution ring sleeve 10;
  • the water ring sleeve 15 and the lower right semicircular water divider ring sleeve 16 are aligned and placed in the high-pressure cooling section of the roller quencher 2 after the slit nozzle spiral roller 4 or the high-density nozzle rear spiral roller 6 in the middle of the processing groove, and the installation groove on the two joints 11 Place two connecting plates 12 respectively; finally insert the restraint bolts 17 into the bolt sink holes 14 on the outer surface to fix the connecting plate 12 on the upper left semicircular water distribution ring sleeve 9 and the upper right semicircular water distribution ring sleeve 10 and the lower left semicircular
  • the side water ring sleeve 8 is installed in the high-pressure cooling section 2 of the roller quencher, the slit nozzle of the spiral roller 4 is widened to the 1/4 or 3/4 position of the processing groove, and the upper semicircular water distribution ring sleeve 18 is first placed during installation To the high-pressure cooling section 2 of the roller quenching machine, after the slit nozzle, the spiral roller 4 is processed at the groove 1/4 or 3/4, and two connecting plates 12 are placed in the mounting grooves 11 at the joints on both sides, and the connecting plate 12 is bolted.
  • the fixing hole 13 corresponds to the bolt hole 14 on the outer surface of the upper semicircular water distribution ring sleeve 18; after that, the lower semicircular water distribution ring sleeve 19 is placed in the high pressure cooling section of the roller quenching machine 2 after the slit nozzle and the spiral roller 4 is wide
  • the 1/4 or 3/4 position corresponds to the processing slot, and two connecting plates 12 are placed in the mounting grooves 11 on the two sides of the joint; finally, the locking bolts 17 are inserted into the bolt sink holes 14 on the outer surface to fix the connecting plate 12 on the upper part.
  • the connection groove of the semicircular water distribution ring sleeve 18 and the lower semicircular water distribution ring sleeve 19 is installed in the groove 11. At this point, the specific installation process of the metal plate and strip roll quenching flow zone control device ends.

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Abstract

一种金属板带材辊式淬火流量分区控制装置，包括中部分水环套和边部分水环套；中部分水环套安装于辊式淬火机高压冷却段缝隙喷嘴后螺旋辊和高密喷嘴后螺旋辊中部加工槽处；边部分水环套安装于辊式淬火机高压冷却段缝隙喷嘴后螺旋辊宽向1/4和3/4位置加工槽处。该装置实现板带材表面冷却水均匀分流，减小因冷却水淤积造成的局部冷却不均现象，满足金属板带材高平直度、高均匀性淬火的生产需求。

Description

一种金属板带材辊式淬火流量分区控制装置 技术领域
本发明属于金属板带材热处理装备技术领域，涉及一种金属板带材辊式淬火流量分区控制装置。
 背景技术
金属板带材热处理涉及正火、淬火、回火、控制冷却、固溶等工艺过程，其中淬火、控制冷却、固溶等工艺需要将金属板带材加热至一定温度（一般≥800℃）后，采用水冷方式以一定冷却速度降至工艺终冷温度，以达到改善金属内部组织和结构、提升性能的目的。
金属板带材热处理通常采用辊底式热处理炉完成加热工序、采用辊式淬火机完成淬火、控制冷却等工序。辊式淬火机冷却能力强、冷却均匀、冷却后板带材板形好，可用于碳素钢、不锈钢、特种合金、钛合金、铝合金等金属板带材淬火、固溶、控制冷却等生产，是大型热处理线主要冷却设备形式。辊式淬火机采用射流冲击淬火方式，高压、大流量冷却水高速冲击板带材上下表面，刺穿表面蒸汽膜，实现直接与壁面单相强制对流换热，壁面换热效率高、换热可控性好。
辊式淬火机高压冷却段是金属板带材温降的主要工艺段，冷速大、冷却均匀性要求高。淬火过程中，壁面水流形态决定热流密度分布，进而决定表面换热均匀性，影响板形及淬火后金属板带材性能分布，是淬火过程关键的控制参数。壁面水流形态控制主要有两种方式：1）通过不同类型的射流喷嘴及其排布设计，控制水量、水压等射流参数；2）通过合理设计上下辊道类型及辊间距、辊缝等设备参数，通过外部约束控制金属板带材壁面水流形态。针对第2种方式，目前辊式淬火机普遍采用螺旋辊，利用螺旋辊螺旋形排水沟槽旋向不同调整板带材壁面水流方向，较快速排出板带材壁面残余冷却水。
现有辊式淬火机高压冷却段螺旋辊系统存在如下问题：1）为实现金属板带材表面冷却残水快速向边部排出，螺旋辊沿中心线两侧螺旋旋向相反，螺旋辊中心存在加工槽，该加工槽处金属板带材纵向水流集中，影响整板水流均匀性；2）为提高辊式淬火机高压冷却段缝隙喷嘴出水的排水效率，缝隙喷嘴后螺旋辊宽向1/4和3/4处设计排水槽，该排水槽影响板带材宽向流量均匀性，造成板带材淬火后板形问题。上述问题影响金属板带材辊式淬火过程长度、宽度和厚度方向流量均匀性，进而影响换热和温降，最终影响板带材淬火板形和性能均匀性。因此，如何合理设计辊式淬火机高压冷却段螺旋辊导水分流装置，既能够实现板带材长度、宽度和厚度方向淬火过程水流均匀有序分布，提高换热均匀性，又能有效、快速清除板带材壁面冷却残水，提高换热效率，是实现金属板带材高均匀性、高平直度淬火的关键之一。
专利CN107142362A，公开了一种用于测量淬火机宽向流量均匀性的测量装置及方法，通过专用的集水槽式的测量装置测量喷嘴宽向水流密度分布。该装置主要功能是测定喷嘴宽向流量均匀性，与本发明辊式淬火机淬火流量分区控制装置无关。
专利CN108277339A，公开了一种钢板的热处理淬火工艺控制系统，包括淬火机一级控制和淬火机二级控制。该发明是基于热处理淬火工艺控制的优化系统，与本发明辊式淬火机淬火流量分区控制装置无关。
专利CN108180816A，公开了一种快速测量淬火机缝隙喷嘴的方法，通过在测试装置上涂抹润滑油，测量狭缝喷嘴射流角度和上下喷嘴射流点位置。该方法是用于提升辊式淬火机喷嘴射流精度的测量方法，与本发明辊式淬火机淬火流量分区控制装置无关。
 技术问题
本发明的目的是提供一种金属板带材辊式淬火流量分区控制装置，能够实现金属板带材在辊式淬火机高压冷却段冷却过程中表面水流均匀分布，并实现残余冷却水快速排除，提高辊式淬火机长度、宽度和厚度方向冷却均匀性，实现高平直度、高均匀性淬火。
 技术解决方案
一种金属板带材辊式淬火流量分区控制装置，该装置包括中部分水环套、边部分水环套，中部分水环套安装于辊式淬火机高压冷却段缝隙喷嘴后螺旋辊和高密喷嘴后螺旋辊中部加工槽处；边部分水环套安装于辊式淬火机高压冷却段缝隙喷嘴后螺旋辊宽向1/4和3/4位置加工槽处。
其中，中部分水环套包括左上部半圆形分水环套、左下部半圆形分水环套、右上部半圆形分水环套、右下部半圆形分水环套，四个半圆形分水环套内径与辊式淬火机高压冷却段缝隙喷嘴后螺旋辊和高密喷嘴后螺旋辊中部加工槽外径一致；四个半圆形分水环套外径一致，且比辊式淬火机高压冷却段螺旋辊外径小5mm~10mm，半圆形分水环套外表面设计螺旋形排水沟槽，左上部半圆形分水环套、左下部半圆形分水环套外表面螺旋形排水沟槽旋向与衔接的左侧螺旋辊排水沟槽旋向一致，右上部半圆形分水环套、右下部半圆形分水环套外表面螺旋形排水沟槽旋向与衔接的右侧螺旋辊排水沟槽旋向一致；四个半圆形分水环套根据分布位置紧密连接固定构成完整的中部分水环套；
边部分水环套包括上部半圆形分水环套、下部半圆形分水环套，两个半圆形分水环套内径与辊式淬火机高压冷却段缝隙喷嘴后螺旋辊宽向1/4和3/4位置加工槽外径一致；两个半圆形分水环套外径一致，并比辊式淬火机高压冷却段螺旋辊外径小5mm~10mm，半圆形分水环套外表面设计螺旋形排水沟槽，螺旋型排水沟槽旋向与其衔接的螺旋辊排水沟槽旋向一致。
上述螺旋形排水沟槽，槽深6mm~8mm，槽宽20mm~30mm。
进一步地，上述中部分水环套还包括两个连接板，连接板上设有螺栓固定孔，与左、右上部半圆形分水环套和左、右下部半圆形分水环套衔接处外表面螺栓沉孔对应，左、右上部半圆形分水环套和左、右下部半圆形分水环套衔接处设有连接板安装槽，尺寸与连接板一致。
进一步地，上述边部分水环套还包括两个连接板，连接板上设有螺栓固定孔，与上部半圆形分水环套和下部半圆形分水环套衔接处外表面螺栓沉孔对应，便于安装禁锢螺栓，上部半圆形分水环套和下部半圆形分水环套衔接处设有连接板安装槽，尺寸与连接板一致。
进一步地，上述辊式淬火机高压冷却段高密喷嘴后螺旋辊宽向1/4和3/4位置不安装边部分水环套。
所述中部分水环套安装于辊式淬火机高压冷却段缝隙喷嘴后螺旋辊和高密喷嘴后螺旋辊中部加工槽处，既起到挡水的作用，又起到分水、排水的作用，便于辊式淬火机高压冷却段螺旋辊将缝隙喷嘴、高密喷嘴中部冷却水均匀向两侧排出；边部分水环套安装于辊式淬火机高压冷却段缝隙喷嘴后螺旋辊宽向1/4和3/4位置加工槽处，既起到挡水的作用，又起到分水、排水的作用，便于辊式淬火机高压冷却段螺旋辊将缝隙喷嘴边部冷却水均匀向金属板带材边部排出；由于辊式淬火机高压冷却段高密喷嘴射流流量小于缝隙喷嘴，板带材边部残水淤积造成的水流无序流动现象不明显，辊式淬火机高压冷却段高密喷嘴后螺旋辊宽向1/4和3/4位置不安装边部分水环套。
 有益效果
所述金属板带材辊式淬火流量分区控制装置与现有设备技术水平相比，具有如下优点：
1、中部分水环套既能实现辊式淬火机高压冷却段缝隙喷嘴、高密喷嘴中部冷却水均匀向两侧分水功能，又能实现冷却水排水功能，一方面提高了金属板带材宽向中部表面冷却均匀性，另一方面提高了排水效率，进而提高了换热效率。
2、边部分水环套能有效将辊式淬火机高压冷却段缝隙喷嘴宽向1/4和3/4位置冷却水向板带材边部有序导出，防止局部冷却残水堆积造成冷却不均、冷却效率下降等问题；同时又起到部分挡水作用，防止辊式淬火机高压冷却段缝隙喷嘴宽向1/4和3/4位置冷却水通过螺旋辊加工槽涌入下一个冷却区，提高区域换热均匀性。
3、分水环套具有拆装方便、结构紧凑、使用寿命长、不损害金属板带材表面质量等优点。
 附图说明
图1是本发明中的金属板带材辊式淬火流量分区控制装置布置图；
   图2是本发明中的金属板带材辊式淬火流量分区控制装置外形及结构图；
（a）中部分水环套,（b）一侧边部分水环套,（c）另一侧边部分水环套。
图中：1板带材；2辊式淬火机高压冷却段；3缝隙喷嘴；4缝隙喷嘴后螺旋辊；5高密喷嘴；6高密喷嘴后螺旋辊；7中部分水环套；8边部分水环套；9左上部半圆形分水环套；10右上部半圆形分水环套；11安装槽；12连接板；13螺栓固定孔；14螺栓沉孔；15左下部半圆形分水环套；16右下部半圆形分水环套；17禁锢螺栓；18上部半圆形分水环套；19下部半圆形分水环套。
 本发明的实施方式
实施例1提供本发明一种金属板带材辊式淬火流量分区控制装置的具体实施过程，如图1所示。板带材1进入辊式淬火机高压冷却段2后，依次经过缝隙喷嘴3、缝隙喷嘴后螺旋辊4、高密喷嘴5和高密喷嘴后螺旋辊6。当板带材1经过缝隙喷嘴后螺旋辊4时，缝隙喷嘴3中部射流冷却水经过缝隙喷嘴后螺旋辊4中部分水环套7向两侧有序分流，既防止板带材1宽向中部淤积冷却水，又实现冷却水向两侧有序均匀导出，缝隙喷嘴3宽向1/4和3/4位置附近冷却水经过缝隙喷嘴后螺旋辊4边部分水环套8分别向板带材1宽向两侧有序导出，既防止板带材1宽向1/4和3/4位置附近淤积冷却水，又实现冷却水向左侧和右侧有序均匀导出。当板带材1经过高密喷嘴后螺旋辊6时，高密喷嘴5中部射流冷却水经过高密喷嘴后螺旋辊6中部分水环套7向两侧有序分流，既防止板带材1宽向中部淤积冷却水，又实现冷却水向两侧有序均匀导出，由于高密喷嘴5射流冷却水量小于缝隙喷嘴3，板带材1宽向1/4和3/4位置附近淤积冷却水对板带材1表面不均匀冷却影响很小，高密喷嘴后螺旋辊6宽向1/4和3/4位置不设计边部分水环套8。当板带材1尾部离开辊式淬火机高压冷却段2时，板带材辊式淬火流量分区控制装置具体实施过程结束。
实施例2提供本发明一种金属板带材辊式淬火流量分区控制装置的具体安装过程，如图1、2所示。中部分水环套7安装于辊式淬火机高压冷却段2缝隙喷嘴后螺旋辊4或高密喷嘴后螺旋辊6中部加工槽处，安装时首先将左上部半圆形分水环套9、右上部半圆形分水环套10对齐安放至辊式淬火机高压冷却段2缝隙喷嘴后螺旋辊4或高密喷嘴后螺旋辊6中部加工槽处，两侧衔接处安装槽11内分别放置两个连接板12，连接板12上螺栓固定孔13与左上部半圆形分水环套9、右上部半圆形分水环套10外表面螺栓沉孔14对应；之后将左下部半圆形分水环套15、右下部半圆形分水环套16对齐安放至辊式淬火机高压冷却段2缝隙喷嘴后螺旋辊4或高密喷嘴后螺旋辊6中部加工槽处，两侧衔接处安装槽11分别放置两个连接板12；最后将禁锢螺栓17分别插入外表面螺栓沉孔14中，将连接板12固定在左上部半圆形分水环套9、右上部半圆形分水环套10和左下部半圆形分水环套15、右下部半圆形分水环套16衔接处安装槽11中。边部分水环套8安装于辊式淬火机高压冷却段2缝隙喷嘴后螺旋辊4宽向1/4或3/4位置加工槽处，安装时首先将上部半圆形分水环套18安放至辊式淬火机高压冷却段2缝隙喷嘴后螺旋辊4宽向1/4或3/4位置加工槽处，两侧衔接处安装槽11内分别放置两个连接板12，连接板12上螺栓固定孔13与上部半圆形分水环套18外表面螺栓沉孔14对应；之后将下部半圆形分水环套19安放至辊式淬火机高压冷却段2缝隙喷嘴后螺旋辊4宽向1/4或3/4位置对应加工槽处，两侧衔接处安装槽11分别放置两个连接板12；最后将禁锢螺栓17分别插入外表面螺栓沉孔14中，将连接板12固定在上部半圆形分水环套18和下部半圆形分水环套19衔接处安装槽11中。至此，金属板带材辊式淬火流量分区控制装置具体安装过程结束。

Claims (5)

  1. 一种金属板带材辊式淬火流量分区控制装置，其特征在于，金属板带材依次进入辊式淬火机高压冷却段的缝隙喷嘴、缝隙喷嘴后螺旋辊、高密喷嘴和高密喷嘴后螺旋辊；该控制装置包括中部分水环套、边部分水环套，中部分水环套安装于辊式淬火机高压冷却段缝隙喷嘴后螺旋辊和高密喷嘴后螺旋辊中部加工槽处；边部分水环套安装于辊式淬火机高压冷却段缝隙喷嘴后螺旋辊宽向1/4和3/4位置加工槽处；
    其中，中部分水环套包括左上部半圆形分水环套、左下部半圆形分水环套、右上部半圆形分水环套、右下部半圆形分水环套，四个半圆形分水环套内径与辊式淬火机高压冷却段缝隙喷嘴后螺旋辊和高密喷嘴后螺旋辊中部加工槽外径一致；四个半圆形分水环套外径一致，且比辊式淬火机高压冷却段螺旋辊外径小5mm~10mm，半圆形分水环套外表面设计螺旋形排水沟槽，左上部半圆形分水环套、左下部半圆形分水环套外表面螺旋形排水沟槽旋向与衔接的左侧螺旋辊排水沟槽旋向一致，右上部半圆形分水环套、右下部半圆形分水环套外表面螺旋形排水沟槽旋向与衔接的右侧螺旋辊排水沟槽旋向一致；四个半圆形分水环套根据分布位置紧密连接固定构成完整的中部分水环套；
    边部分水环套包括上部半圆形分水环套、下部半圆形分水环套，两个半圆形分水环套内径与辊式淬火机高压冷却段缝隙喷嘴后螺旋辊宽向1/4和3/4位置加工槽外径一致；两个半圆形分水环套外径一致，并比辊式淬火机高压冷却段螺旋辊外径小5mm~10mm，半圆形分水环套外表面设计螺旋形排水沟槽，螺旋型排水沟槽旋向与其衔接的螺旋辊排水沟槽旋向一致。
  2. 根据权利要求1所述的金属板带材辊式淬火流量分区控制装置，其特征在于，所述螺旋形排水沟槽，槽深6mm~8mm，槽宽20mm~30mm。
  3. 根据权利要求1或2所述的金属板带材辊式淬火流量分区控制装置，其特征在于，中部分水环套还包括两个连接板，连接板上设有螺栓固定孔，与左、右上部半圆形分水环套和左、右下部半圆形分水环套衔接处外表面螺栓沉孔对应，左、右上部半圆形分水环套和左、右下部半圆形分水环套衔接处设有连接板安装槽，尺寸与连接板一致。
  4. 根据权利要求1或2所述的金属板带材辊式淬火流量分区控制装置，其特征在于，边部分水环套还包括两个连接板，连接板上设有螺栓固定孔，与上部半圆形分水环套和下部半圆形分水环套衔接处外表面螺栓沉孔对应，上部半圆形分水环套和下部半圆形分水环套衔接处设有连接板安装槽，尺寸与连接板一致。
  5. 根据权利要求1所述的金属板带材辊式淬火流量分区控制装置，其特征在于，辊式淬火机高压冷却段高密喷嘴后螺旋辊宽向1/4和3/4位置不安装边部分水环套。
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CN109207689A (zh) * 2018-10-19 2019-01-15 东北大学 一种金属板带材辊式淬火流量分区控制装置

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