CN115026456A - 采用新成分焊丝及焊接工艺以提升轧辊焊补质量的方法 - Google Patents
采用新成分焊丝及焊接工艺以提升轧辊焊补质量的方法 Download PDFInfo
- Publication number
- CN115026456A CN115026456A CN202210715414.7A CN202210715414A CN115026456A CN 115026456 A CN115026456 A CN 115026456A CN 202210715414 A CN202210715414 A CN 202210715414A CN 115026456 A CN115026456 A CN 115026456A
- Authority
- CN
- China
- Prior art keywords
- welding
- roller
- welding wire
- hardness
- tempering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000008439 repair process Effects 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 19
- 238000005496 tempering Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 239000011733 molybdenum Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 229910052748 manganese Inorganic materials 0.000 claims 1
- 239000011572 manganese Substances 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 150000001247 metal acetylides Chemical class 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 6
- 229910000734 martensite Inorganic materials 0.000 description 4
- 238000004321 preservation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
本发明公开采用新成分焊丝及焊接工艺以提升轧辊焊补质量的方法,通过采用自制DT550焊丝焊补,达到提升轧辊硬度,改善耐磨性,进而提高轧辊过钢量、提升产品质量及产量的目的。选用DT550焊丝,DT550焊丝增加镍、钼元素含量,镍可提高硬度及韧性,钼可形成Mo2C等碳化物;轧辊焊补后二次回火,以30℃~50℃/h升温520℃保温22h,随炉冷至100℃后空冷,再以30℃~50℃/h升温500℃保温20h,随炉冷至100℃后空冷回火,回火后弥散碳化物可大幅度提升硬度及耐磨性。本发明的优点:工艺固化后轧辊硬度(HB)平均可达401,且耐磨性有很大提高,轧辊过钢量平均可达34454吨/副。
Description
技术领域
本发明属于金属焊接工艺范畴,具体涉及一种采用新成分焊丝及焊补工艺以提升轧辊焊补质量的方法。
背景技术
轧辊在高温、磨损和冲击条件下工作,产生老化其形式主要有磨损、热龟裂、起皱、鼓包等。目前60CrMnMo钢轧辊焊补采用3Cr13焊丝、焊剂HJ260,轧辊硬度(HBW)260~300,硬度低导致轧辊不耐磨,老化速度快,过钢量仅17000吨左右,严重制约产品质量及产量。
发明内容
本发明公开采用新成分焊丝及焊接工艺以提升轧辊焊补质量的方法,通过采用自制DT550焊丝焊补,达到提升轧辊硬度,改善耐磨性,进而提高轧辊过钢量、提升产品质量及产量的目的。
焊丝材质及热处理优化:
1.选用DT550焊丝代替3Cr13焊丝,成分对比见表1。DT550焊丝增加镍、钼元素,镍可提高硬度及韧性,钼可形成Mo2C等碳化物,回火后弥散碳化物可大幅度提升硬度及耐磨性。
表1焊丝化学成分
2.对DT550焊丝回火工艺研究,具体数据见表2。500℃回火后硬度(HRC)最高,达到51~53。观察X500倍金相,500℃回火为回火马氏体,析出碳化物更多更弥散,碳化物弥散强化效果最佳,见图1、图2、图3。
表2DT550焊丝不同回火工艺对应硬度
3.DT550焊丝焊补工艺流程:
⑴轧辊焊补前的表面车削清理,将水纹等缺陷清理干净;
⑵轧辊焊补前预热:预热温度280℃~320℃,保温6h~10h,保温时间根据现场实际情况进行适当调整,预热工艺曲线见图4;
⑶轧辊堆补参数:现场焊接操作时根据实际情况适当调节使用,焊丝为DT550,焊丝直径∮4mm;
堆焊电流:500A~800A;
焊接电压:33V~42V;
焊丝干伸长:焊丝直径的5~10倍;
焊接速度:28m/h~40m/h;
送丝速度:30m/h~120m/h;
⑷轧辊堆焊后二次回火,以30℃~50℃/h升温520℃保温22h,随炉冷至100℃后空冷,再以30℃~50℃/h升温500℃保温20h,随炉冷至100℃后空冷回火,二次回火工艺曲线见图5。
本发明的发明点:⑴成分的发明点:镍、钼合金,镍可提高硬度及韧性,钼可形成Mo2C等碳化物,回火后弥散碳化物可大幅度提升轧辊硬度及耐磨性;⑵回火工艺的发明点:二次回火提高组织稳定性,减少残余奥氏体,并能充分析出锰元素形成Mo2C碳化物提升硬度及耐磨性。
本发明的优点:
工艺固化后轧辊硬度(HB)平均可达401,且耐磨性有很大提高,轧辊过钢量平均可达34454吨/副,下线轧辊磨损较3Cr13轧辊磨损也有很大改善。
附图说明
图1为DT550焊丝450℃回火金相照片(500倍);
图2为DT550焊丝500℃回火马氏体金相照片(500倍);
图3为DT550焊丝550℃回火金相照片(500倍);
图4为轧辊预热工艺曲线:
图5为轧辊二次回火工艺曲线。
具体实施方式
实施例1
1.选用DT550焊丝,成分见表1。
2.DT550焊丝焊补轧辊工艺流程:包括轧辊焊补前表面清理、清理后轧辊的预热、轧辊自动埋弧焊堆焊、轧辊焊补后的回火处理、后期轧辊的车削加工。
⑴表面车削清理,将水纹等缺陷清理干净;
⑵轧辊焊补前预热:以30℃/h升温至100℃,转以50℃/h升温至280℃~320℃,保温6h~10h,使基体金属在马氏体相变临界温度以上充分分解,避免焊补堆焊层金属的马氏体相变,以防止堆焊焊缝热影响区的裂纹产生,保温时间根据现场实际情况进行适当调整,预热工艺曲线见图4;
⑶轧辊焊补参数:现场焊接操作时根据实际情况适当调节使用,
焊丝为DT550,焊丝直径∮4mm;
堆焊电流:500A~800A;
焊接电压:33V~42V;
焊丝干伸长:焊丝直径的5~10倍;
焊接速度:28m/h~40m/h;
送丝速度:30m/h~120m/h;
⑷轧辊焊补后二次回火,以30℃~50℃/h升温520℃保温22h,随炉冷至100℃后空冷,再以30℃~50℃/h升温500℃保温20h,随炉冷至100℃后空冷回火,二次回火工艺曲线见图5。
⑸轧辊硬度及过钢量数据见表3。
表3轧辊硬度及过钢量
表3续
Claims (2)
1.一种新成分焊丝,其特征在于,DT550焊丝化学成分:碳:0.16%~0.19%,铬:13.1%~13.3%,锰:0.30%~0.50%,镍:1.25%~1.35%,钼:2.20%~2.30%,铜不大于0.5%,氮:0.06%~0.08%,硅:0.30%~0.50%。
2.权利要求1所述一种新成分焊丝的焊补工艺参考3Cr13焊丝焊接工艺,其特征在于,轧辊焊补前预热:预热温度280℃~320℃,保温6h~10h;轧辊焊补后二次回火,以30℃~50℃/h升温520℃保温22h,随炉冷至100℃后空冷,再以30℃~50℃/h升温500℃保温20h,随炉冷至100℃后空冷回火。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210715414.7A CN115026456A (zh) | 2022-06-23 | 2022-06-23 | 采用新成分焊丝及焊接工艺以提升轧辊焊补质量的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210715414.7A CN115026456A (zh) | 2022-06-23 | 2022-06-23 | 采用新成分焊丝及焊接工艺以提升轧辊焊补质量的方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN115026456A true CN115026456A (zh) | 2022-09-09 |
Family
ID=83127313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210715414.7A Pending CN115026456A (zh) | 2022-06-23 | 2022-06-23 | 采用新成分焊丝及焊接工艺以提升轧辊焊补质量的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115026456A (zh) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010027966A1 (en) * | 2000-02-07 | 2001-10-11 | Mitsubishi Heavy Industries, Ltd. | Weld material, gas metal arc welding method, and welded structure |
CN1597233A (zh) * | 2004-08-27 | 2005-03-23 | 攀钢集团攀枝花钢铁研究院 | 一种连铸辊堆焊用药芯焊丝 |
CN101104180A (zh) * | 2006-07-14 | 2008-01-16 | 首钢总公司燕郊机械厂 | 用药芯焊丝堆焊修复半钢轧辊 |
CN101215628A (zh) * | 2008-01-11 | 2008-07-09 | 北京工业大学 | 高速钢复合轧辊热处理方法 |
CN101758359A (zh) * | 2008-10-14 | 2010-06-30 | 上海和欣金属制品有限公司 | 一种支承辊修复工艺 |
CN102189316A (zh) * | 2010-03-11 | 2011-09-21 | 上海一钢机电有限公司 | 不锈钢热轧输送辊埋弧焊堆焊修复方法 |
CN102744528A (zh) * | 2011-04-22 | 2012-10-24 | 攀钢集团钢铁钒钛股份有限公司 | 药芯焊丝、制作热卷箱弯曲辊的方法和热卷箱弯曲辊 |
CN105728964A (zh) * | 2014-12-09 | 2016-07-06 | 重庆金国凯畅机床厂 | 一种轧辊堆焊工艺 |
CN109014654A (zh) * | 2018-07-16 | 2018-12-18 | 中冶建筑研究总院有限公司 | 一种复合(再)制造连铸辊用埋弧堆焊药芯焊丝及工艺 |
CN114571031A (zh) * | 2022-04-12 | 2022-06-03 | 福建鼎信科技有限公司 | 一种430不锈钢热轧输送辊及其堆焊方法 |
-
2022
- 2022-06-23 CN CN202210715414.7A patent/CN115026456A/zh active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010027966A1 (en) * | 2000-02-07 | 2001-10-11 | Mitsubishi Heavy Industries, Ltd. | Weld material, gas metal arc welding method, and welded structure |
CN1597233A (zh) * | 2004-08-27 | 2005-03-23 | 攀钢集团攀枝花钢铁研究院 | 一种连铸辊堆焊用药芯焊丝 |
CN101104180A (zh) * | 2006-07-14 | 2008-01-16 | 首钢总公司燕郊机械厂 | 用药芯焊丝堆焊修复半钢轧辊 |
CN101215628A (zh) * | 2008-01-11 | 2008-07-09 | 北京工业大学 | 高速钢复合轧辊热处理方法 |
CN101758359A (zh) * | 2008-10-14 | 2010-06-30 | 上海和欣金属制品有限公司 | 一种支承辊修复工艺 |
CN102189316A (zh) * | 2010-03-11 | 2011-09-21 | 上海一钢机电有限公司 | 不锈钢热轧输送辊埋弧焊堆焊修复方法 |
CN102744528A (zh) * | 2011-04-22 | 2012-10-24 | 攀钢集团钢铁钒钛股份有限公司 | 药芯焊丝、制作热卷箱弯曲辊的方法和热卷箱弯曲辊 |
CN105728964A (zh) * | 2014-12-09 | 2016-07-06 | 重庆金国凯畅机床厂 | 一种轧辊堆焊工艺 |
CN109014654A (zh) * | 2018-07-16 | 2018-12-18 | 中冶建筑研究总院有限公司 | 一种复合(再)制造连铸辊用埋弧堆焊药芯焊丝及工艺 |
CN114571031A (zh) * | 2022-04-12 | 2022-06-03 | 福建鼎信科技有限公司 | 一种430不锈钢热轧输送辊及其堆焊方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113046642B (zh) | 一种低成本高强度高耐腐蚀性不锈钢及其制备方法 | |
CN1293222C (zh) | 一种高硬度高韧性易火焰切割的耐磨钢板及其制备方法 | |
WO2014141697A1 (ja) | 厚肉高靭性高張力鋼板およびその製造方法 | |
EP3392365B1 (en) | Pressure vessel steel sheet having excellent post weld heat treatment resistance, and manufacturing method therefor | |
JPWO2016079978A1 (ja) | 材質均一性に優れた厚肉高靭性高張力鋼板およびその製造方法 | |
CN110640288A (zh) | 一种q235钢板上堆焊高铬合金的堆焊方法 | |
CN107746935A (zh) | 一种高强度耐磨钢板及其生产工艺 | |
CN115026456A (zh) | 采用新成分焊丝及焊接工艺以提升轧辊焊补质量的方法 | |
JPH03122253A (ja) | 金属圧延用ロールの製造法 | |
JPH106001A (ja) | 耐食性・耐摩耗性に優れた肉盛りロールの製造方法 | |
JP2687732B2 (ja) | 金属圧延用複合ロール及びその製造法と圧延機 | |
JP4123597B2 (ja) | 強度と靱性に優れた鋼材の製造法 | |
RU2291040C1 (ru) | Способ восстановления роликов | |
CN109295287B (zh) | 薄带热镀机组锌锅辊用低热膨胀系数不锈钢及其制备方法 | |
JP4823441B2 (ja) | 熱間耐摩耗性および耐熱亀裂性にすぐれた連続鋳造用および熱間圧延用ロール | |
CN110396641B (zh) | 一种淬透性良好的非调质hb360级中厚板耐磨钢及其生产方法 | |
JPH10156500A (ja) | 耐熱亀裂性連続鋳造用肉盛ロール | |
CN115807193B (zh) | 一种“素化”连铸辊辊坯材料体系及其制备方法 | |
KR100241034B1 (ko) | 연속주조롤용 육성용접재료와 이를 이용한 육성용접방법 | |
RU2243076C1 (ru) | Способ восстановления роликов | |
JP5458923B2 (ja) | 耐脆性破壊特性に優れた溶接継手 | |
CN118086765A (zh) | 一种细珠光体耐腐蚀热轧锯片钢及生产方法 | |
CN116423014A (zh) | 一种dq耐磨钢中薄板单面焊淬硬工艺 | |
CN117089773A (zh) | 一种基于连续热处理产线的hb400级耐磨耐蚀钢及生产方法 | |
CN116618976A (zh) | 一种轧钢剪板用刀片生产工艺 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |