CN102528321A - Special welding rod used for surfacing reparation of high carbon steel type high-speed railway base tamping pick - Google Patents
Special welding rod used for surfacing reparation of high carbon steel type high-speed railway base tamping pick Download PDFInfo
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- CN102528321A CN102528321A CN2011104021662A CN201110402166A CN102528321A CN 102528321 A CN102528321 A CN 102528321A CN 2011104021662 A CN2011104021662 A CN 2011104021662A CN 201110402166 A CN201110402166 A CN 201110402166A CN 102528321 A CN102528321 A CN 102528321A
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Abstract
The invention discloses a special welding rod used for the hardfacing reparation of a high carbon steel type high-speed railway base tamping pick. The coating of the special welding rod comprises the following chemical ingredients 1-3wt% of titanium dioxide, 25-35wt% of marble, 9-15wt% of fluorite, 2-4wt% of quartz, 2-4wt% of chalk, 5-7wt% of high-carbon ferrochrome, 2-4wt% of high-carbon ferromanganese, 3-5wt% of graphite, 1-3wt% of ferrosilicon, 6-8wt% of ferrotitanium, 5-7wt% of ferromolybdenum, 5-7wt% of cerium oxide, 3-5wt% of metallic nickel, 1-3wt% of ferrovanadium, 3-5wt% of tungsten carbide and 5-7wt% of ferrotungsten, and a core wire is an H08A steel core wire. Through adoption of the welding rod disclosed by the invention, the step of preheating before the welding can be avoided, and low-temperature tempering after welding is used for carrying out surfacing reparation or reproduction for the high-speed railway base tamping pick; because the surfacing metal is high-carbon steel, the surfacing surface has higher abrasion resistance and certain impact resistance and cracking resistance and the special welding rod is very convenient to use on site; the surface hardness range of the high-speed railway base tamping pick after surfacing is HRC (Rockwellhardness) 61-65; and the service life of the repaired high-speed railway base tamping pick is 2-3 times that of the integrally-manufactured tamping pick.
Description
Technical field
The present invention relates to a kind of technique for overlaying, relating to especially is a kind of surfacing welding.
Background technology
High ferro (high-speed railway) is the development trend of following railway transport of passengers, and high ferro refers to the railway of the highest operation speed per hour more than 200km, generally adopts EMUs.The appearance of high ferro has proposed new challenge to Chinese traditional railway subgrade Design, construction, maintenance.Roadbed is the basis of bearing track structure weight and train load, is an important component part of rail track engineering.High ferro is had higher requirement to the ride comfort and the stability of track, and its roadbed also need satisfy the performance requirement that the high ferro track proposes the basis except that the key property that should possess general railway bed.Therefore, roadbed is as the basis of track structure, must have that intensity height, rigidity are big, stability and a good endurance, and can resist performance such as various natural cause influences.
In the construction of railway bed, maintenance process, wherein tamping unit is to change one of the most frequent equipment of parts in the road maintainance machinery.Tamping unit is the groundwork device of tamping car, is used to make firm by ramming pillow end ballast aggregate, improves the packing of pillow end ballast aggregate.During operation, arrange tamping pickaxe is regular some in the tamping unit, bear whole following slotting power, vibration force and chucking power, through impacting the effect of accomplishing circuit of making firm by ramming with railway roadbed repeatedly.Therefore, tamping pickaxe directly contacts with railway roadbed, stressed complicacy in inserting process down, each moment all withstand shocks power, vibration force and clamping moment of flexure, working environment is very poor.Wherein wear out failure is the main failure forms of tamping pickaxe, and this just requires tamping pickaxe must have high strength, shock-resistant and abrasion resistance properties.
In traditional manufacture process, tamping pickaxe production need be passed through operations such as smelting, casting, forging, heat treatment and machining, has not only consumed a large amount of energy, and serious pollution environment; Through the employing technology for repairing surfacing it is returned to the original form and size, and obtain higher service life, thereby reduce its manufacture process the waste of the energy and the pollution of environment.
At present, have the people once with chrome molybdenum tungsten vanadium be alloy as tamping pickaxe build-up wear-resistant layer material, although this material can reach higher hardness, when take place interacting with the high rigidity abrasive particle, its wearability is obviously not enough; In addition, also have employing that carbide filler is welded in tamping pickaxe pick palm surface to improve wearability.But because the coefficient-of-linear-expansion difference of itself and steel is big, easy to crack in brazing process, obdurability can't rational Match, causes the carbide alloy brittle failure taking place in the course of the work or coming off, and its effect is undesirable always.
Summary of the invention
The object of the present invention is to provide the long special welding rod that is used for built-up welding reparation high-carbon die high ferro roadbed tamping pickaxe of a kind of easy welding, postwelding cracking resistance, shock resistance and life-span.
Surfacing welding of the present invention, the percentage by weight of its chemical composition of coating are (wt%): titanium white powder 1-3, marble 25-35, fluorite 9-15, quartzy 2-4; Chalk 2-4, high carbon ferro-chrome 5-7, high carbon ferromanganese 2-4, graphite 3-5; Ferrosilicon 1-3, ferrotianium 6-8, molybdenum-iron 5-7, ceria 5-7; Metallic nickel 3-5, vanadium iron 1-3, tungsten carbide 3-5, ferrotungsten 5-7.Core wire is a H08A steel welding wire.
Ferrotianium, high carbon ferromanganese and ferrosilicon in the above-mentioned coating raw material can combined deoxidation, purifies the built-up welding molten bath; Adding graphite, high carbon ferro-chrome and ferrotungsten and can control higher carbon content and chromium content, improve the quenching degree of deposited metal, simultaneously, is to form M on the one hand
7C
3Carbide forms the WC carbide on the other hand, guarantees the wearability of suitable deposited metal, in addition, also directly adds a certain amount of tungsten carbide and further improves wearability; Adding ceria also can deoxidation, desulfurization, purifies the built-up welding molten bath, can also refinement postwelding primary solidification structure and secondary solidification structure, and rotten field trash improves the toughness of deposited metal, improves the anti-cracking performance of deposited metal; Metal nickel powder can improve the built-up welding tissue, improves stress distribution, improves the anti-cracking performance of deposited metal; Add ferrotianium and also can form TiC, on the one hand thinning microstructure, disperse distribution reinforcement matrix on the other hand; Add molybdenum-iron and strengthen matrix on the one hand, improve the temper resistance on deposited metal surface on the other hand.
The preparation method of welding rod of the present invention:
1, part material is carried out Passivation Treatment:
A, with silicon iron powder heating, 720-750 ℃ of insulation 1 hour,
B, with high carbon ferro-chrome powder heating, 550-600 ℃ of insulation 1 hour,
C, with high carbon ferromanganese powder heating, 300-350 ℃ of insulation 1 hour.
2, mix: the various raw materials of above-mentioned coating are put into batch mixer fully mix, and then add sodium silicate binder and stir, the modulus of this waterglass is 2.7-3.0, and Baume degrees is 48-50.
3, compacting: be squeezed on the H08A steel welding wire with the material of welding rod coating machine with above-mentioned mixing.
4, drying: welding rod is carried out drying at 100-200 ℃.
The present invention has following advantage:
1, the high ferro roadbed tamping pickaxe that adopts welding rod reparation of the present invention has not only reduced manufacturing process with the tamping pickaxe that can replace producing through the integral body manufacturing, has saved the raw material and the energy, simultaneously, has improved 2-3 its service life doubly.
2, use welding rod of the present invention to repair high ferro roadbed tamping pickaxe, before need not welding tamping pickaxe is carried out preheating, postwelding only needs 100-200 ℃ of lonneal, and is on-the-spot easy to use, is easy to welding, and postwelding does not ftracture, and welding quality obviously improves, and hardness range is HRC63-67.
3, welding rod of the present invention not only can be answered high ferro roadbed tamping pickaxe by the application heap repair welding, and can be applied to the relevant wear-resisting spare part built-up welding reparation of industries such as metallurgical machinery, mining machinery, petroleum machinery, and the market space is very wide.
The specific embodiment
Embodiment 1:
The get it filled raw material of skin: 3 kilograms of titanium white powders, 35 kilograms in marble, 15 kilograms in fluorite, quartzy 4 kilograms; 4 kilograms of chalks, 5 kilograms of high carbon ferro-chromes, 2 kilograms of high carbon ferromanganeses, 3 kilograms in graphite; 1 kilogram of ferrosilicon, 6 kilograms of ferrotianiums, 5 kilograms of molybdenum-irons, 5 kilograms of cerias; 3 kilograms of metallic nickels, 1 kilogram of vanadium iron, 3 kilograms of tungsten carbides, 5 kilograms of ferrotungstens and H08A steel welding wire.Earlier ferrosilicon, high carbon ferro-chrome and high carbon ferromanganese are carried out Passivation Treatment, be about to the silicon iron powder heating, 720 ℃ of insulations 1 hour; With the heating of high carbon ferro-chrome powder, 550 ℃ of insulations 1 hour; With the heating of high carbon ferromanganese powder, 300 ℃ of insulations 1 hour.The various raw materials of above-mentioned coating are put into batch mixer fully mix, and then add sodium silicate binder and stir, the modulus of this waterglass is 2.7, and Baume degrees is 48.Be squeezed on the H08A steel welding wire with the material of welding rod coating machine above-mentioned mixing.At 100 ℃ core wire is carried out drying.The high ferro roadbed that adopts above-mentioned welding rod built-up welding to repair is used tamping pickaxe, and warp is exempted from preheating before welding, postwelding is handled 200 ℃ of lonneals, and the hardness on surface is HRC61.
Embodiment 2:
The get it filled raw material of skin: 2 kilograms of titanium white powders, 30 kilograms in marble, 12 kilograms in fluorite, quartzy 3 kilograms; 3 kilograms of chalks, 6 kilograms of high carbon ferro-chromes, 3 kilograms of high carbon ferromanganeses, 4 kilograms in graphite; 2 kilograms of ferrosilicon, 7 kilograms of ferrotianiums, 6 kilograms of molybdenum-irons, 6 kilograms of cerias; 4 kilograms of metallic nickels, 2 kilograms of vanadium iron, 4 kilograms of tungsten carbides, 6 kilograms of ferrotungstens and H08A steel welding wire.Earlier ferrosilicon, high carbon ferro-chrome and high carbon ferromanganese are carried out Passivation Treatment, be about to the silicon iron powder heating, 730 ℃ of insulations 1 hour; With the heating of high carbon ferro-chrome powder, 570 ℃ of insulations 1 hour; With the heating of high carbon ferromanganese powder, 320 ℃ of insulations 1 hour.The various raw materials of above-mentioned coating are put into batch mixer fully mix, and then add sodium silicate binder and stir, the modulus of this waterglass is 2.8, and Baume degrees is 49.Be squeezed on the H08A steel welding wire with the material of welding rod coating machine above-mentioned mixing.At 150 ℃ core wire is carried out drying.The high ferro roadbed that adopts above-mentioned welding rod built-up welding to repair is used tamping pickaxe, and warp is exempted from preheating before welding, postwelding is handled 150 ℃ of lonneals, and the hardness on surface is HRC63.
Embodiment 3:
The get it filled raw material of skin: 1 kilogram of titanium white powder, 25 kilograms in marble, 9 kilograms in fluorite, quartzy 2 kilograms; 2 kilograms of chalks, 7 kilograms of high carbon ferro-chromes, 4 kilograms of high carbon ferromanganeses, 5 kilograms in graphite; 3 kilograms of ferrosilicon, 8 kilograms of ferrotianiums, 7 kilograms of molybdenum-irons, 7 kilograms of cerias; 5 kilograms of metallic nickels, 3 kilograms of vanadium iron, 5 kilograms of tungsten carbides, 7 kilograms of ferrotungstens and H08A steel welding wire.Earlier ferrosilicon, high carbon ferro-chrome and high carbon ferromanganese are carried out Passivation Treatment, be about to the silicon iron powder heating, 750 ℃ of insulations 1 hour; With the heating of high carbon ferro-chrome powder, 600 ℃ of insulations 1 hour; With the heating of high carbon ferromanganese powder, 350 ℃ of insulations 1 hour.The various raw materials of above-mentioned coating are put into batch mixer fully mix, and then add sodium silicate binder and stir, the modulus of this waterglass is 3.0, and Baume degrees is 50.Be squeezed on the H08A steel welding wire with the material of welding rod coating machine above-mentioned mixing.At 200 ℃ core wire is carried out drying.The high ferro roadbed that adopts above-mentioned welding rod built-up welding to repair is used tamping pickaxe, and warp is exempted from preheating before welding, postwelding is handled 100 ℃ of lonneals, and the hardness on surface is HRC65.
Claims (1)
1. one kind is used for the special welding rod that high-carbon die high ferro roadbed tamping pickaxe is repaired in built-up welding, and the percentage by weight wt% of its chemical composition of coating is: titanium white powder 1-3, marble 25-35, fluorite 9-15, quartzy 2-4; Chalk 2-4, high carbon ferro-chrome 5-7, high carbon ferromanganese 2-4, graphite 3-5; Ferrosilicon 1-3, ferrotianium 6-8, molybdenum-iron 5-7, ceria 5-7; Metallic nickel 3-5, vanadium iron 1-3, tungsten carbide 3-5, ferrotungsten 5-7; Core wire is a H08A steel welding wire.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476014A (en) * | 2014-10-31 | 2015-04-01 | 河海大学常州校区 | Vanadium-strengthened wear resistant surfacing electrode and preparation method thereof |
| CN104476013A (en) * | 2014-10-31 | 2015-04-01 | 河海大学常州校区 | Tungsten-strengthened wear-resisting surfacing electrode and preparation method thereof |
| CN105014260A (en) * | 2015-07-30 | 2015-11-04 | 鞍钢集团工程技术有限公司 | Welding rod and welding method for repair welding of high-strength steel wheel |
| CN105458555A (en) * | 2015-12-10 | 2016-04-06 | 无锡普瑞明思机械制造有限公司 | High-strength wear-resisting welding rod |
| CN106271225A (en) * | 2016-08-30 | 2017-01-04 | 四川大西洋焊接材料股份有限公司 | Hardfacing electrode and preparation method thereof |
| CN107627045A (en) * | 2017-11-09 | 2018-01-26 | 湖州高恒电梯配件有限公司 | A kind of welding wire for welding elevator guide shoe plate |
| CN108296666A (en) * | 2018-01-24 | 2018-07-20 | 江苏孚尔姆焊业股份有限公司 | Abrasion-proof overlaying welding flux-cored wire |
| CN109940310A (en) * | 2019-03-27 | 2019-06-28 | 江苏能建机电实业集团有限公司 | Boiler build-up welding alloy material |
| CN110977252A (en) * | 2019-12-25 | 2020-04-10 | 安徽应流铸业有限公司 | Welding rod for repair welding of steel casting |
| CN111922549A (en) * | 2020-07-30 | 2020-11-13 | 内蒙古一机集团神鹿焊业有限公司 | High-hardness wear-resistant surfacing welding electrode and preparation method thereof |
| CN114367763A (en) * | 2022-01-18 | 2022-04-19 | 南京工程学院 | Wear-resistant surfacing electrode for improving surface performance of Q235 steel and cladding method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101406997A (en) * | 2008-10-22 | 2009-04-15 | 燕山大学 | Surfacing electrode for green refabrication technology for composite bimetal hot shear edge |
| CN101406996A (en) * | 2008-10-22 | 2009-04-15 | 燕山大学 | Surfacing electrode for composite duplex metal cold cutting edge green refabrication technique |
| CN102198574A (en) * | 2011-05-25 | 2011-09-28 | 燕山大学 | Special welding strip for surfacing-repairing and remanufacturing cold working mold |
| CN102229028A (en) * | 2011-05-25 | 2011-11-02 | 燕山大学 | Special welding rod for bead weld repairing and remanufacturing of trimming die and using method of special welding rod |
| CN102240872A (en) * | 2011-05-25 | 2011-11-16 | 燕山大学 | Special welding rod for stack welding repair and reproduction of hot-forging die |
-
2011
- 2011-12-07 CN CN2011104021662A patent/CN102528321A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101406997A (en) * | 2008-10-22 | 2009-04-15 | 燕山大学 | Surfacing electrode for green refabrication technology for composite bimetal hot shear edge |
| CN101406996A (en) * | 2008-10-22 | 2009-04-15 | 燕山大学 | Surfacing electrode for composite duplex metal cold cutting edge green refabrication technique |
| CN102198574A (en) * | 2011-05-25 | 2011-09-28 | 燕山大学 | Special welding strip for surfacing-repairing and remanufacturing cold working mold |
| CN102229028A (en) * | 2011-05-25 | 2011-11-02 | 燕山大学 | Special welding rod for bead weld repairing and remanufacturing of trimming die and using method of special welding rod |
| CN102240872A (en) * | 2011-05-25 | 2011-11-16 | 燕山大学 | Special welding rod for stack welding repair and reproduction of hot-forging die |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476014A (en) * | 2014-10-31 | 2015-04-01 | 河海大学常州校区 | Vanadium-strengthened wear resistant surfacing electrode and preparation method thereof |
| CN104476013A (en) * | 2014-10-31 | 2015-04-01 | 河海大学常州校区 | Tungsten-strengthened wear-resisting surfacing electrode and preparation method thereof |
| CN105014260A (en) * | 2015-07-30 | 2015-11-04 | 鞍钢集团工程技术有限公司 | Welding rod and welding method for repair welding of high-strength steel wheel |
| CN105458555A (en) * | 2015-12-10 | 2016-04-06 | 无锡普瑞明思机械制造有限公司 | High-strength wear-resisting welding rod |
| CN106271225A (en) * | 2016-08-30 | 2017-01-04 | 四川大西洋焊接材料股份有限公司 | Hardfacing electrode and preparation method thereof |
| CN107627045A (en) * | 2017-11-09 | 2018-01-26 | 湖州高恒电梯配件有限公司 | A kind of welding wire for welding elevator guide shoe plate |
| CN108296666A (en) * | 2018-01-24 | 2018-07-20 | 江苏孚尔姆焊业股份有限公司 | Abrasion-proof overlaying welding flux-cored wire |
| CN109940310A (en) * | 2019-03-27 | 2019-06-28 | 江苏能建机电实业集团有限公司 | Boiler build-up welding alloy material |
| CN110977252A (en) * | 2019-12-25 | 2020-04-10 | 安徽应流铸业有限公司 | Welding rod for repair welding of steel casting |
| CN111922549A (en) * | 2020-07-30 | 2020-11-13 | 内蒙古一机集团神鹿焊业有限公司 | High-hardness wear-resistant surfacing welding electrode and preparation method thereof |
| CN114367763A (en) * | 2022-01-18 | 2022-04-19 | 南京工程学院 | Wear-resistant surfacing electrode for improving surface performance of Q235 steel and cladding method |
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Application publication date: 20120704 |