CN111687563A - 一种可提高堆焊合金硬度的药芯焊丝 - Google Patents
一种可提高堆焊合金硬度的药芯焊丝 Download PDFInfo
- Publication number
- CN111687563A CN111687563A CN202010600492.3A CN202010600492A CN111687563A CN 111687563 A CN111687563 A CN 111687563A CN 202010600492 A CN202010600492 A CN 202010600492A CN 111687563 A CN111687563 A CN 111687563A
- Authority
- CN
- China
- Prior art keywords
- flux
- hardness
- cored wire
- percent
- niobium
- 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.)
- Granted
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 46
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 46
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000000843 powder Substances 0.000 claims abstract description 57
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 50
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical group [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000004005 microsphere Substances 0.000 claims abstract description 26
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 26
- 239000010955 niobium Substances 0.000 claims abstract description 26
- 238000003466 welding Methods 0.000 claims abstract description 25
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 24
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims abstract description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910021569 Manganese fluoride Inorganic materials 0.000 claims abstract description 12
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052796 boron Inorganic materials 0.000 claims abstract description 12
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000292 calcium oxide Substances 0.000 claims abstract description 12
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 12
- CTNMMTCXUUFYAP-UHFFFAOYSA-L difluoromanganese Chemical compound F[Mn]F CTNMMTCXUUFYAP-UHFFFAOYSA-L 0.000 claims abstract description 12
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 12
- 239000011733 molybdenum Substances 0.000 claims abstract description 12
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 12
- 229910000027 potassium carbonate Inorganic materials 0.000 claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 239000010703 silicon Substances 0.000 claims abstract description 12
- 239000010936 titanium Substances 0.000 claims abstract description 12
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 12
- 239000003814 drug Substances 0.000 claims abstract description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000001257 hydrogen Substances 0.000 claims abstract description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 10
- 239000001301 oxygen Substances 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 10
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 10
- 239000010937 tungsten Substances 0.000 claims abstract description 10
- 230000004907 flux Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 abstract description 4
- 125000004432 carbon atom Chemical group C* 0.000 abstract description 3
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 abstract description 3
- 229910002804 graphite Inorganic materials 0.000 description 12
- 239000010439 graphite Substances 0.000 description 12
- 238000009826 distribution Methods 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 238000005491 wire drawing Methods 0.000 description 10
- 238000007796 conventional method Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 239000010960 cold rolled steel Substances 0.000 description 7
- 229910021393 carbon nanotube Inorganic materials 0.000 description 6
- 239000002041 carbon nanotube Substances 0.000 description 6
- 229910021389 graphene Inorganic materials 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 241000251131 Sphyrna Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005552 hardfacing Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
-
- 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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- 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
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
-
- 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
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
-
- 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
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
本发明属于焊接材料技术领域,涉及一种可提高堆焊合金硬度的药芯焊丝,包括外皮和药芯。外皮为:钨≤0.03%,氧≤0.015%,氢≤0.01%,余量为铌;药芯为:中空笼状碳微球22.0%‑25.5%,氟化锰12.5%‑14.8%,钼1.0%‑1.8%,镍3.2%‑5.5%,钛5.8%‑6.5%,硼1.2%‑1.8%,硅2.0%‑3.2%,氧化钙2.8%‑5.2%,碳酸钾3.2%‑4.5%,余量为FHT100·25还原铁粉。本发明采用铌带做外皮,采用中空笼状碳微球作为碳源,焊接熔池中碳原子及铌原子分布均匀,可以形成大量均匀分布的碳化铌硬质相,增加了堆焊合金的硬度并使硬度分布均匀。
Description
技术领域
本发明涉及焊接材料领域,具体涉及一种可提高堆焊合金硬度的药芯焊丝。
技术背景
磨损是造成机械失效的主要原因之一,如水泥厂立磨磨辊和磨盘以及挤压辊、火力发电厂磨煤机磨辊和磨盘、破碎机锤头和滚筒、挖掘机的铲齿、抛丸机的叶片,等等,在使用过程中由于局部磨损、损伤而无法继续使用,损耗巨大。
堆焊技术是一种常用的表面改性及修复的方法,近年来药芯焊丝逐渐成为耐磨堆焊的首选焊材,通过在工件表面堆焊特种合金,可以提高其硬度,增强耐磨性,延长工件的使用寿命。
在焊接材料的设计中,影响堆焊合金硬度值的大小及硬度分布均匀性的因素主要是碳与金属元素形成碳化物的类型、尺寸、形状、数量以及分布状态,尤其以数量及分布状态为主。目前本领域中存在的技术问题是:①堆焊合金中为形成碳化物必须有碳元素加入,为获取碳元素,往往在药芯焊丝中加入一定量的石墨、石墨电极碳、碳纳米管、石墨烯等碳源,以满足堆焊合金的硬度要求,但是由于药芯焊丝的填充率一般不超过40%,碳源增加会造成金属粉末相应减少,焊接时能全部熔化的焊丝外皮又主要以铁元素为主,在堆焊合金中形成的碳化物中主要是Fe3C,除Fe3C外的碳化物增强相较少,Fe3C的硬度值较低,造成堆焊合金的硬度增加幅度并不大;②焊接电弧是一个移动的热源,如果增大药芯中金属颗粒含量,其熔化率难以保证,部分金属元素颗粒可以熔进合金中,另外一部分进入熔渣,造成金属元素的流失,无法有效提高堆焊合金的硬度;③石墨、石墨电极碳、碳纳米管、石墨烯等碳源由于其团聚效应,在电弧热输入及电弧力作用下,与金属元素形成的碳化物分布不均匀,造成整个工件的硬度分布不均匀,无法达到堆焊增强耐磨性的目的。
发明内容
本发明的目的就是为了解决现有技术之不足而提供的一种可提高堆焊合金硬度的药芯焊丝,可以较大幅度提高堆焊合金的硬度,同时堆焊合金的硬度分布均匀。
为实现上述目的,本发明采用如下技术方案:
一种可提高堆焊合金硬度的药芯焊丝,包括外皮和药芯。
所述外皮成分及用量按质量百分比计为:钨≤0.03%,氧≤0.015%,氢≤0.01%,余量为铌。
所述药芯成分及用量按质量百分比计为:中空笼状碳微球22.0%-25.5%,氟化锰12.5%-14.8%,钼1.0%-1.8%,镍3.2%-5.5%,钛5.8%-6.5%,硼1.2%-1.8%,硅2.0%-3.2%,氧化钙2.8%-5.2%,碳酸钾3.2%-4.5%,余量为FHT100·25还原铁粉,所述中空笼状碳微球的外径为300-360nm,内径220-280nm,介孔直径30-40nm。
进一步的,所述外皮的宽度为6-20mm,厚度为0.25-1.6mm。
进一步的,所述药芯质量占药芯焊丝总质量的28%-35%,优选30%-33%。
进一步的,所述焊丝直径为1.5-3.0mm。
通过成型机将外皮压制成U型,将混好的药芯粉填充到U型槽中,再将U型槽开口处合口形成O型,从而使药芯包裹其中,经拉丝机逐道拉拔、减径,得到药芯焊丝。
本发明的有益技术效果是:
1)焊接时药芯焊丝的外皮作为电极全部熔化进入熔池,本发明通过采用质量分数大于99.9%的铌带制造成药芯焊丝的外皮,保证了焊接时熔池中有大量铌原子存在,这些铌原子与碳原子结合可以形成大量的碳化铌硬质相,大幅度增加堆焊合金的硬度。
2)使用外径为纳米级的中空笼状碳微球作为碳源,纳米级的碳微球存在大量的界面,具有高密度的短程扩散路径,使其在金属熔体中比石墨、石墨电极碳、碳纳米管、石墨烯更容易扩散,焊接时中空笼状碳微球分布均匀,以铌原子为主的金属原子可以通过介孔进入空笼进而将空笼胀破,使碳分布更加均匀,生成的以碳化铌为主的各种碳化物均匀分布,得到的堆焊合金硬度分布均匀。
具体实施方式
以下结合实施例对本发明的原理和特征进行描述,所列举实例只用于解释本发明,并非限定本发明的范围。
实施例1:
可提高堆焊合金硬度的药芯焊丝,该药芯焊丝由外皮包裹药芯粉构成。
首先选用宽度为10mm、厚度为0.3mm的铌带(钨≤0.03%,氧≤0.015%,氢≤0.01%,余量为铌),通过成型机压制成U型;然后将药芯粉填充到U型槽中,药芯粉占药芯焊丝质量的30%;再将U型槽开口处合口形成O型,从而使药芯粉包裹其中,按照常规方法经拉丝机逐道拉拔、减径,得到Ф1.5mm的焊丝,即本发明的可提高堆焊合金硬度的药芯焊丝。
药芯成分及用量按质量百分比计为:中空笼状碳微球22.0%,氟化锰12.5%,钼1.0%,镍3.2%,钛5.8%,硼1.2%,硅2.0%,氧化钙2.8%,碳酸钾3.2%,余量为FHT100·25还原铁粉,中空笼状碳微球的外径为300-360nm,内径220-280nm,介孔直径30-40nm。
实施例2:
可提高堆焊合金硬度的药芯焊丝,该药芯焊丝由外皮包裹药芯粉构成。
首先选用宽度为15mm、厚度为0.8mm的铌带(钨≤0.03%,氧≤0.015%,氢≤0.01%,余量为铌),通过成型机压制成U型;然后将药芯粉填充到U型槽中,药芯粉占药芯焊丝质量的32%;再将U型槽开口处合口形成O型,从而使药芯粉包裹其中,按照常规方法经拉丝机逐道拉拔、减径,得到Ф2.0mm的焊丝,即本发明的可提高堆焊合金硬度的药芯焊丝。
药芯成分及用量按质量百分比计为:中空笼状碳微球24.2%,氟化锰13.6%,钼1.4%,镍4.4%,钛6.1%,硼1.5%,硅2.6%,氧化钙4.1%,碳酸钾3.9%,余量为FHT100·25还原铁粉,中空笼状碳微球的外径为300-360nm,内径220-280nm,介孔直径30-40nm。
实施例3:
可提高堆焊合金硬度的药芯焊丝,该药芯焊丝由外皮包裹药芯粉构成。
首先选用宽度为20mm、厚度为1.6mm的铌带(钨≤0.03%,氧≤0.015%,氢≤0.01%,余量为铌),通过成型机压制成U型;然后将药芯粉填充到U型槽中,药芯粉占药芯焊丝质量的35%;再将U型槽开口处合口形成O型,从而使药芯粉包裹其中,按照常规方法经拉丝机逐道拉拔、减径,得到Ф3.0mm的焊丝,即本发明的可提高堆焊合金硬度的药芯焊丝。
药芯成分及用量按质量百分比计为:中空笼状碳微球25.5%,氟化锰14.8%,钼1.8%,镍5.5%,钛6.5%,硼1.8%,硅3.2%,氧化钙5.2%,碳酸钾4.5%,余量为FHT100·25还原铁粉,中空笼状碳微球的外径为300-360nm,内径220-280nm,介孔直径30-40nm。
对比例1:
可提高堆焊合金硬度的药芯焊丝,该药芯焊丝由外皮包裹药芯粉构成。
首先选用宽度为20mm、厚度为1.6mm的铌带(钨≤0.03%,氧≤0.015%,氢≤0.01%,余量为铌),通过成型机压制成U型;然后将药芯粉填充到U型槽中,药芯粉占药芯焊丝质量的35%;再将U型槽开口处合口形成O型,从而使药芯粉包裹其中,按照常规方法经拉丝机逐道拉拔、减径,得到Ф3.0mm的焊丝,即本发明的可提高堆焊合金硬度的药芯焊丝。
药芯成分及用量按质量百分比计为:石墨25.5%,氟化锰14.8%,钼1.8%,镍5.5%,钛6.5%,硼1.8%,硅3.2%,氧化钙5.2%,碳酸钾4.5%,余量为FHT100·25还原铁粉。
对比例2:
可提高堆焊合金硬度的药芯焊丝,该药芯焊丝由外皮包裹药芯粉构成。
首先选用宽度为20mm、厚度为1.6mm的铌带(钨≤0.03%,氧≤0.015%,氢≤0.01%,余量为铌),通过成型机压制成U型;然后将药芯粉填充到U型槽中,药芯粉占药芯焊丝质量的35%;再将U型槽开口处合口形成O型,从而使药芯粉包裹其中,按照常规方法经拉丝机逐道拉拔、减径,得到Ф3.0mm的焊丝,即本发明的可提高堆焊合金硬度的药芯焊丝。
药芯成分及用量按质量百分比计为:石墨电极碳25.5%,氟化锰14.8%,钼1.8%,镍5.5%,钛6.5%,硼1.8%,硅3.2%,氧化钙5.2%,碳酸钾4.5%,余量为FHT100·25还原铁粉。
对比例3:
可提高堆焊合金硬度的药芯焊丝,该药芯焊丝由外皮包裹药芯粉构成。
首先选用宽度为20mm、厚度为1.6mm的铌带(钨≤0.03%,氧≤0.015%,氢≤0.01%,余量为铌),通过成型机压制成U型;然后将药芯粉填充到U型槽中,药芯粉占药芯焊丝质量的35%;再将U型槽开口处合口形成O型,从而使药芯粉包裹其中,按照常规方法经拉丝机逐道拉拔、减径,得到Ф3.0mm的焊丝,即本发明的可提高堆焊合金硬度的药芯焊丝。
药芯成分及用量按质量百分比计为:碳纳米管25.5%,氟化锰14.8%,钼1.8%,镍5.5%,钛6.5%,硼1.8%,硅3.2%,氧化钙5.2%,碳酸钾4.5%,余量为FHT100·25还原铁粉。
对比例4:
可提高堆焊合金硬度的药芯焊丝,该药芯焊丝由外皮包裹药芯粉构成。
首先选用宽度为20mm、厚度为1.6mm的铌带(钨≤0.03%,氧≤0.015%,氢≤0.01%,余量为铌),通过成型机压制成U型;然后将药芯粉填充到U型槽中,药芯粉占药芯焊丝质量的35%;再将U型槽开口处合口形成O型,从而使药芯粉包裹其中,按照常规方法经拉丝机逐道拉拔、减径,得到Ф3.0mm的焊丝,即本发明的可提高堆焊合金硬度的药芯焊丝。
药芯成分及用量按质量百分比计为:石墨烯25.5%,氟化锰14.8%,钼1.8%,镍5.5%,钛6.5%,硼1.8%,硅3.2%,氧化钙5.2%,碳酸钾4.5%,余量为FHT100·25还原铁粉。
对比例5:
可提高堆焊合金硬度的药芯焊丝,该药芯焊丝由外皮包裹药芯粉构成。
首先选用宽度为20mm、厚度为1.6mm的低碳冷轧钢带,通过成型机压制成U型;然后将药芯粉填充到U型槽中,药芯粉占药芯焊丝质量的35%;再将U型槽开口处合口形成O型,从而使药芯粉包裹其中,按照常规方法经拉丝机逐道拉拔、减径,得到Ф3.0mm的焊丝,即本发明的可提高堆焊合金硬度的药芯焊丝。
药芯成分及用量按质量百分比计为:中空笼状碳微球25.5%,氟化锰14.8%,钼1.8%,镍5.5%,钛6.5%,硼1.8%,硅3.2%,氧化钙5.2%,碳酸钾4.5%,余量为FHT100·25还原铁粉,中空笼状碳微球的外径为300-360nm,内径220-280nm,介孔直径30-40nm。
对比例6:
可提高堆焊合金硬度的药芯焊丝,该药芯焊丝由外皮包裹药芯粉构成。
首先选用宽度为20mm、厚度为1.6mm的低碳冷轧钢带,通过成型机压制成U型;然后将药芯粉填充到U型槽中,药芯粉占药芯焊丝质量的35%;再将U型槽开口处合口形成O型,从而使药芯粉包裹其中,按照常规方法经拉丝机逐道拉拔、减径,得到Ф3.0mm的焊丝,即本发明的可提高堆焊合金硬度的药芯焊丝。
药芯成分及用量按质量百分比计为:中空笼状碳微球25.5%,氟化锰14.8%,钼1.8%,镍5.5%,钛6.5%,硼1.8%,硅3.2%,氧化钙5.2%,碳酸钾4.5%,余量为铌,中空笼状碳微球的外径为300-360nm,内径220-280nm,介孔直径30-40nm。
将实施例1、2、3和对比例1、2、3、4、5、6得到的药芯焊丝在Q420钢试板上进行多道多层堆焊,堆焊宽度为100mm,厚度为20mm;采用直流反接法,焊接电流为210~280A,焊接电压为25~33V,焊接速度为6~10mm/s,CO2气体流量为19L/min;在试板上堆焊金属距表面相同位置处取样,并经打磨、抛光后,用体积分数3.5%的硝酸酒精擦试5次进行腐蚀后进行硬度测试。硬度测试结果如表1所示。
表1
从实施例及对比例可以看出:
①利用本发明实施例得到药芯焊丝进行堆焊,得到的堆焊合金硬度平均值高,硬度分布均匀,满足使用要求;
②将本发明的药芯成分中的中空笼状碳微球分别换成石墨、石墨电极碳、碳纳米管、石墨烯,制备成药芯焊丝后进行堆焊,石墨、石墨电极碳不易均匀分布,而片状的石墨烯、管状的碳纳米管与球形的中空笼状碳微球相比本身易于团聚,焊接时在熔池金属液中分布均匀度差,这些碳源与铌结合得到碳化物分布不均匀,虽然堆焊合金的硬度最大值与本发明实施例相差不大,但碳原子的分布不均匀造成堆焊合金的硬质相分布不均匀,硬度则分布不均匀,硬度最小值小,无法满足使用要求;
③将本发明的外皮换成低碳冷轧钢带,制备成药芯焊丝后进行堆焊,外皮熔化后主元素是铁,碳与铁形成Fe3C,得到的堆焊合金硬度最高值与本发明实施例相差较大,但因为使用了中空笼状碳微球作为碳源,堆焊合金的硬度分布均匀,但硬度平均值低,无法满足使用要求;
④将本发明的外皮换成低碳冷轧钢带,药芯中的FHT100·25换成铌,制备成药芯焊丝后进行堆焊,得到的堆焊合金硬度分布均匀,但因为硬质相少(铌颗粒本身含量相比采用铌外皮时少了许多,且不能全部熔化进入熔池),造成硬度平均值提高较小,仍无法满足使用要求。
以上述依据本发明的理想实施例为启示,通过上述的说明内容,相关工作人员完全可以在不偏离本项发明技术思想的范围内,进行多样的变更以及修改。本项发明的技术性范围并不局限于说明书上的内容,必须要根据权利要求范围来确定其技术性范围。凡根据本发明精神实质所作的等效变化或修饰,都应涵盖在本发明的保护范围之内。
Claims (4)
1.一种可提高堆焊合金硬度的药芯焊丝,其特征在于:包括外皮和药芯;
所述外皮成分及用量按质量百分比计为:钨≤0.03%,氧≤0.015%,氢≤0.01%,余量为铌;
所述药芯成分及用量按质量百分比计为:中空笼状碳微球22.0%-25.5%,氟化锰12.5%-14.8%,钼1.0%-1.8%,镍3.2%-5.5%,钛5.8%-6.5%,硼1.2%-1.8%,硅2.0%-3.2%,氧化钙2.8%-5.2%,碳酸钾3.2%-4.5%,余量为FHT100·25还原铁粉,所述中空笼状碳微球的外径为300-360nm,内径220-280nm,介孔直径30-40nm。
2.根据权利要求1所述的可提高堆焊合金硬度的药芯焊丝,其特征在于:所述外皮的宽度为6-20mm,厚度为0.25-1.6mm。
3.根据权利要求1所述的可提高堆焊合金硬度的药芯焊丝,其特征在于:所述药芯质量占药芯焊丝总质量的28%-35%,优选30%-33%。
4.根据权利要求1所述的可提高堆焊合金硬度的药芯焊丝,其特征在于:所述焊丝直径为1.5-3.0mm。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010600492.3A CN111687563B (zh) | 2020-06-28 | 2020-06-28 | 一种可提高堆焊合金硬度的药芯焊丝 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010600492.3A CN111687563B (zh) | 2020-06-28 | 2020-06-28 | 一种可提高堆焊合金硬度的药芯焊丝 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111687563A true CN111687563A (zh) | 2020-09-22 |
CN111687563B CN111687563B (zh) | 2022-01-11 |
Family
ID=72484219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010600492.3A Expired - Fee Related CN111687563B (zh) | 2020-06-28 | 2020-06-28 | 一种可提高堆焊合金硬度的药芯焊丝 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111687563B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114029650A (zh) * | 2021-11-29 | 2022-02-11 | 郑州大学 | 堆焊合金高硬度高韧性强抗裂性的耐磨堆焊用药芯焊丝 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2798824A (en) * | 1956-04-11 | 1957-07-09 | Int Nickel Co | Coated electrode particularly suited for welding dissimilar metals |
US5292813A (en) * | 1992-10-02 | 1994-03-08 | Exxon Research & Engineering Co. | Fullerene-grafted polymers and processes of making |
RU2006144466A (ru) * | 2006-12-14 | 2008-06-20 | Федеральное государственное учреждение "Технологический институт сверхтвердых и новых углеродных материалов" (ФГУ ТИСНУМ) (RU) | Способ соединения монокристалла алмаза с металлом |
CN104476012A (zh) * | 2014-10-31 | 2015-04-01 | 河海大学常州校区 | 一种铌强化耐磨堆焊焊条及其制备方法 |
CN105722636A (zh) * | 2013-11-12 | 2016-06-29 | 西门子能源公司 | 利用可变掩蔽对粉末状材料的床的激光处理 |
CN106219523A (zh) * | 2016-07-13 | 2016-12-14 | 清华大学 | 一种三维网笼状纳米石墨烯材料及其制备方法与应用 |
CN109175780A (zh) * | 2018-10-23 | 2019-01-11 | 郑州大学 | 一种耐磨堆焊药芯焊丝 |
CN110125572A (zh) * | 2019-05-30 | 2019-08-16 | 洛阳双瑞特种合金材料有限公司 | 一种可焊后热处理的无缝埋弧药芯焊丝 |
CN110931747A (zh) * | 2019-12-05 | 2020-03-27 | 郑州中科新兴产业技术研究院 | 一种核壳结构硅/中间相炭微球复合负极材料及制备方法 |
-
2020
- 2020-06-28 CN CN202010600492.3A patent/CN111687563B/zh not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2798824A (en) * | 1956-04-11 | 1957-07-09 | Int Nickel Co | Coated electrode particularly suited for welding dissimilar metals |
US5292813A (en) * | 1992-10-02 | 1994-03-08 | Exxon Research & Engineering Co. | Fullerene-grafted polymers and processes of making |
RU2006144466A (ru) * | 2006-12-14 | 2008-06-20 | Федеральное государственное учреждение "Технологический институт сверхтвердых и новых углеродных материалов" (ФГУ ТИСНУМ) (RU) | Способ соединения монокристалла алмаза с металлом |
CN105722636A (zh) * | 2013-11-12 | 2016-06-29 | 西门子能源公司 | 利用可变掩蔽对粉末状材料的床的激光处理 |
CN104476012A (zh) * | 2014-10-31 | 2015-04-01 | 河海大学常州校区 | 一种铌强化耐磨堆焊焊条及其制备方法 |
CN106219523A (zh) * | 2016-07-13 | 2016-12-14 | 清华大学 | 一种三维网笼状纳米石墨烯材料及其制备方法与应用 |
CN109175780A (zh) * | 2018-10-23 | 2019-01-11 | 郑州大学 | 一种耐磨堆焊药芯焊丝 |
CN110125572A (zh) * | 2019-05-30 | 2019-08-16 | 洛阳双瑞特种合金材料有限公司 | 一种可焊后热处理的无缝埋弧药芯焊丝 |
CN110931747A (zh) * | 2019-12-05 | 2020-03-27 | 郑州中科新兴产业技术研究院 | 一种核壳结构硅/中间相炭微球复合负极材料及制备方法 |
Non-Patent Citations (1)
Title |
---|
张霞等: "《无机化学(第2版)》", 31 August 2015, 北京冶金工业出版社 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114029650A (zh) * | 2021-11-29 | 2022-02-11 | 郑州大学 | 堆焊合金高硬度高韧性强抗裂性的耐磨堆焊用药芯焊丝 |
CN114029650B (zh) * | 2021-11-29 | 2023-01-13 | 郑州大学 | 堆焊合金高硬度高韧性强抗裂性的耐磨堆焊用药芯焊丝 |
Also Published As
Publication number | Publication date |
---|---|
CN111687563B (zh) | 2022-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105057926B (zh) | 一种用于热作模具修复堆焊的专用药芯焊丝 | |
CN109175780B (zh) | 一种耐磨堆焊药芯焊丝 | |
CN102366860B (zh) | 中速磨煤机磨辊耐磨堆焊用粉芯焊丝及其制备与堆焊方法 | |
CN102962603A (zh) | 一种镍铬钼合金系的镍基焊条 | |
CN113319463B (zh) | 一种金属基陶瓷颗粒焊丝及制备工艺 | |
CN106756994A (zh) | 一种激光熔覆涂层的镍基复合粉末及制备涂层的方法 | |
CN111687563B (zh) | 一种可提高堆焊合金硬度的药芯焊丝 | |
CN104959194B (zh) | 一种金属陶瓷磨辊及其制备方法 | |
CN110883446A (zh) | 用于轧辊修复的药芯焊丝及制备方法 | |
CN109434322A (zh) | 一种堆焊药芯焊丝及其制备方法 | |
CN110977248A (zh) | 耐磨药芯组合物、耐磨焊丝及其制备方法与应用 | |
CN110205561A (zh) | 一种强化无缝钢管穿孔顶头及其制备方法 | |
CN113857719B (zh) | 一种挤压辊表面耐磨堆焊用药芯焊丝 | |
CN106736004A (zh) | 一种堆焊复合制造高炉出铁口钻头的堆焊材料及工艺 | |
CN113523646B (zh) | 一种低稀释率的堆焊药芯焊丝及制备方法 | |
CN112025135B (zh) | 一种耐磨堆焊层适应复杂工况的堆焊用药芯焊丝 | |
CN111687560B (zh) | 一种熔敷金属硬度均匀的耐磨堆焊用药芯焊丝 | |
CN102317025B (zh) | 中心气流含氩气和氢气,外层气流含氩气和二氧化碳/氧气的双气流弧焊方法 | |
CN102962604B (zh) | 一种焊丝 | |
Su et al. | Study on Wear-resistant Surfacing Flux Cored Wire for Shield Machine Hob | |
CN110369905B (zh) | 一种铝铰线高效连接专用焊粉 | |
CN114310036B (zh) | 一种挤压辊表面堆焊耐磨合金用药芯焊丝 | |
CN114101965B (zh) | 一种镍铬钼系耐蚀合金焊条及其制备方法 | |
CN114289928B (zh) | 一种等离子堆焊方法 | |
CN114248039B (zh) | 一种工程机械用高强抗裂金属粉芯型埋弧焊丝及应用 |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220111 |