CN107214439A - A kind of cast iron solder flux and welding method - Google Patents
A kind of cast iron solder flux and welding method Download PDFInfo
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- CN107214439A CN107214439A CN201710583411.1A CN201710583411A CN107214439A CN 107214439 A CN107214439 A CN 107214439A CN 201710583411 A CN201710583411 A CN 201710583411A CN 107214439 A CN107214439 A CN 107214439A
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- weight
- cast iron
- solder flux
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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
- B23K35/36—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
- B23K35/362—Selection of compositions of fluxes
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
A kind of cast iron solder flux and welding method, are related to welding technology field.A kind of cast iron solder flux, cast iron solder flux is mainly mixed by following raw material：The parts by weight of manganese oxide 65 75, the parts by weight of carbon dust 6 12, the parts by weight of silica 38, the parts by weight of calcium oxide 5 10 and the parts by weight of iron powder 8 15.It has the characteristics of cracking resistance is good, welding effect is good.A kind of welding method, including：At 18 20mm around clean welds after 65 ° of weld seam bevel 55 °, above-mentioned cast iron solder flux is attached to the surface of welding rod, the welding rod with cast iron solder flux is melted to commissure under conditions of 400 500 DEG C.This method coordinates welding rod to use using above-mentioned cast iron solder flux, with preferable welding effect, and the cast iron solder flux attaches welding rod, can be welded at once without drying, the features such as weldment is without carrying out preheating and postweld heat preservation.
Description
Technical field
The present invention relates to welding technology field, and more particularly to a kind of cast iron solder flux and welding method.
Background technology
The need for being produced with modern industry, the science and technology of China constantly flourishes, and welding technique is not also with
Disconnected progress, new steel type, kind and new welding method also reaches stable developing simultaneously.The casting of China nearly ten years
Iron parts are widely used in the state such as machine-building, petrochemical industry, automobile, shipbuilding, metallurgical mine, the building and national defence people's livelihood in large quantities
The each side of production.Grey cast-iron is due to production equipment and simple production process, and production cost is low, and raw material sources are wide, mechanicalness
Can relatively it stablize, so the yield of grey cast-iron accounts for more than 80% in cast iron, but the defect that grey casting is present is also very big.
It is economical to save, defect is repaired, defect is generally repaired using welding method, it is to avoid the economic loss caused by it is scrapped.If
Standby host part breaks or wears out the part that can not be continuing with use, when no mechanical spare part, again can not and
When obtain purchase change in the case of, in order to reduce shutdown loss, repaired using welding method, become produce on preferably most
Fast selection.
By grey cast-iron is to be mingled with flake graphite on the matrix of steel to be constituted, its carbon content 2.11%~
In the range of 6.9%, grey cast-iron is a kind of iron-carbon alloy, is existed with cementite (Fe3C) formation, because its smelting equipment is simple,
With short production cycle, it is organized the formation of compared with coarse grain.Therefore grey casting welding point in SMAW repair welding easily goes out
Existing white structure, in welding process, due to exist uneven state easily occur welding stress it is uneven in the presence of, in weldment
Weakness or fusion area and weld seam in be also easy to produce cold crack or fire check phenomenon.
The content of the invention
It is an object of the invention to provide a kind of cast iron solder flux, it has the characteristics of cracking resistance is good, welding effect is good.
Another object of the present invention is to provide a kind of welding method, this method coordinates welding rod using above-mentioned cast iron solder flux
Use, with preferable welding effect.
The present invention is solved its technical problem and realized using following technical scheme.
The present invention proposes a kind of cast iron solder flux, and cast iron solder flux is mainly mixed by following raw material：Manganese oxide 65-75 weight
Part, carbon dust 6-12 parts by weight, silica 3-8 parts by weight, calcium oxide 5-10 parts by weight and iron powder 8-15 parts by weight.
The present invention also proposes a kind of welding method, including：By 18- around clean welds after 55 ° -65 ° of weld seam bevel
At 20mm, above-mentioned cast iron solder flux is attached to the surface of welding rod, the condition by the welding rod with cast iron solder flux at 400-500 DEG C
Under be melted to commissure.
The beneficial effect of the embodiment of the present invention is：A kind of cast iron solder flux, the material rate of cast iron solder flux is suitable, for welding
During the weld seam of grey cast-iron, good penetrability, crack resistance are high, and fusion character is good.The effect of each composition in its raw material in electric arc
The slag of face of weld can be molten into down, and weld metal can be protected to completely cut off gas intrusion bath in liquid.In carbon dust
Ferro element in carbon and iron powder can be fused into alloy at high temperature, similar with the composition of Grey Cast Iron Weld, Ke Yizeng
Plus the fusion character of cast iron solder flux and weld seam.The alloying elements such as appropriate manganese, silicon, iron, calcium are with the addition of in the raw material of cast iron solder flux,
Commissure has the effect such as good penetrability, crack resistance height.There are a variety of dystectic oxides, these oxygen in the raw material of cast iron solder flux
Compound is as the nucleator of bath liquid metals, and the crystal grain refinement that solidification can be promoted to be formed prevents weld seam from cracking.
A kind of welding method, this method coordinates welding rod to use using above-mentioned cast iron solder flux, with preferable welding effect.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical scheme be clearly and completely described.Unreceipted actual conditions person, builds according to normal condition or manufacturer in embodiment
The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, are the conventional production that can be obtained by commercially available purchase
Product.
A kind of cast iron solder flux and welding method of the embodiment of the present invention are specifically described below.
A kind of cast iron solder flux, cast iron solder flux is mainly mixed by following raw material：Manganese oxide 65-75 parts by weight, carbon dust 6-
12 parts by weight, silica 3-8 parts by weight, calcium oxide 5-10 parts by weight and iron powder 8-15 parts by weight.
Manganese oxide, carbon dust, silica, calcium oxide and iron powder in cast iron solder flux can melt in the presence of electric arc
For the slag of face of weld, weld metal can be protected to completely cut off gas intrusion bath in liquid.
By grey cast-iron is to be mingled with flake graphite on the matrix of steel to be constituted, its carbon content 2.11%~
In the range of 6.9%, grey cast-iron is a kind of iron-carbon alloy, with cementite (Fe3C) formed and existed.In embodiments of the invention
In can be fused into alloy at high temperature by adding the ferro element in the carbon and iron powder in carbon dust and iron powder, carbon dust, with
The composition of Grey Cast Iron Weld is similar, can increase the fusion character of cast iron solder flux and weld seam.It with the addition of in the raw material of cast iron solder flux
The alloying elements such as appropriate manganese, silicon, iron, calcium, have the effect such as good penetrability, crack resistance height in commissure.
In addition, there is a variety of dystectic oxides in the raw material of cast iron solder flux, these oxides are used as bath liquid metals
Nucleator, can promote solidification formed crystal grain refinement, prevent weld seam from cracking.
The material rate of cast iron solder flux in the present embodiment is suitable, utilizes the change manganese, carbon dust, titanium dioxide of the proportion
When the cast iron solder flux that silicon, calcium oxide and iron powder are made, weld seam for welding grey cast-iron, good penetrability, crack resistance are high, and
And fusion character is good.Preferably, manganese oxide is 68-72 parts by weight, and carbon dust is 7-10 parts by weight, and silica is 4-6 parts by weight, oxygen
Change calcium is 6-8 parts by weight, and iron powder is 10-12 parts by weight.Cast iron solder flux made from raw material in the range of the preferred proportion, welding
The weld seam effect of grey cast-iron is more preferable.It is further preferred that manganese oxide is 70 parts by weight, carbon dust is 8 parts by weight, and silica is
5 parts by weight, calcium oxide is 7 parts by weight, and iron powder is 10 parts by weight.
In an embodiment of the present invention, the mass fraction of the manganese element in manganese oxide is 55wt%-65wt%, in carbon dust
The mass fraction of carbon is 60wt%, and the mass fraction of the element silicon in silica is the calcium member in 43wt%, calcium oxide
The mass fraction of element is 62wt%, and the mass fraction of the ferro element in iron powder is 95wt%.
In addition, in some embodiments of the invention, the raw material of cast iron solder flux also includes bonding agent 4-7 parts by weight.In casting
Bonding agent is added in iron solder flux can cause cast iron solder flux to be preferably attached to electrode surface, and in melting, cast iron solder flux has
The composition of effect composition and welding rod is easier fusion generation hair should.
In some embodiments of the invention, cast iron grain 0.5-2 parts by weight are also included in raw material.The composition of cast iron grain and weldering
Composition at seam is identical, can increase the fusion character of cast iron solder flux and weld seam.
In addition, in some embodiments of the invention, surfactant 1-3 weight is also included in the raw material of cast iron solder flux
Part, surfactant includes at least one of polysorbate, dodecyl sodium sulfate and DTAB.Table
Face activating agent can increase the compatibility of the raw material in cast iron solder flux, be conducive to being well mixed in mixing.
A kind of welding method, including：At 18-20mm around clean welds after 55 ° -65 ° of weld seam bevel.So can be with
Ensure that welding line joint can penetrate and avoid the occurrence of defective workmanship.Removing rust, impurity and greasy dirt etc. can be removed around clean welds,
Be conducive to welding.A stop hole is respectively bored alternatively, it is also possible to the two ends of weld seam again.
Then above-mentioned cast iron solder flux is attached to the surface of welding rod.In some embodiments of the invention, by that will weld
Bar dips in paste and then immersed again in cast iron solder flux so that cast iron solder flux is attached to electrode surface.In still other implementation of the present invention
In example, because containing bonding agent in cast iron solder flux, then directly welding rod is immersed in cast iron solder flux and cause cast iron solder flux to be attached to welding rod
Surface.In addition, the weight ratio of the cast iron solder flux and welding rod in the embodiment of the present invention is 1:14-16.
Welding rod with cast iron solder flux is melted to commissure under conditions of 400-500 DEG C., can basis during welding operation
Weldment thickness, from the suitable welding rod of diameter, and selects corresponding technological parameter, typically can be using less welding current, slow
Weldering speed, can make to swing laterally current interruption manipulation of electrode, backstep sequence., can be without drying at once and the cast iron solder flux attaches welding rod
Welded, weldment is without being preheated and postweld heat preservation.When weldment intensity is higher, when structural rigidity is higher, cast iron will be carried
After the welding rod of solder flux is melted to commissure under conditions of 400-500 DEG C, 600-700 DEG C of insulation 50-70min is heated to weld seam
Slow cooling is to eliminate internal stress afterwards, it is to avoid weld seam is cracked.
The feature and performance to the present invention are described in further detail with reference to embodiments.
Embodiment 1
A kind of cast iron solder flux, cast iron solder flux is mainly mixed by following raw material：The parts by weight of manganese oxide 70, the weight of carbon dust 8
Part, the parts by weight of silica 5, the parts by weight of calcium oxide 7 and the parts by weight of iron powder 10.
A kind of welding method, including：At 18-20mm around clean welds after 55 ° -65 ° of weld seam bevel, welding rod is dipped in
Upper paste then immerses again in cast iron solder flux so that cast iron solder flux is attached to electrode surface, and the welding rod with cast iron solder flux is existed
Commissure is melted under conditions of 450 DEG C.Then butt-welding fitting is heated to after 600 DEG C of insulation 70min Slow cooling to eliminate inside
Stress.The weight ratio of its medium cast iron solder flux and welding rod is 1:15.
Embodiment 2
A kind of cast iron solder flux, cast iron solder flux is mainly mixed by following raw material：The parts by weight of manganese oxide 65, the weight of carbon dust 10
Part, the parts by weight of silica 4, the parts by weight of calcium oxide 9 and the parts by weight of iron powder 12.
A kind of welding method, including：At 18-20mm around clean welds after 55 ° -65 ° of weld seam bevel, welding rod is dipped in
Upper paste then immerses again in cast iron solder flux so that cast iron solder flux is attached to electrode surface, and the welding rod with cast iron solder flux is existed
Commissure is melted under conditions of 400 DEG C.The weight ratio of its medium cast iron solder flux and welding rod is 1:14.
Embodiment 3
A kind of cast iron solder flux, cast iron solder flux is mainly mixed by following raw material：The parts by weight of manganese oxide 68, the weight of carbon dust 7
Part, the parts by weight of silica 6, the parts by weight of calcium oxide 8 and the parts by weight of iron powder 11.
A kind of welding method, including：At 18-20mm around clean welds after 55 ° -65 ° of weld seam bevel, welding rod is dipped in
Upper paste then immerses again in cast iron solder flux so that cast iron solder flux is attached to electrode surface, and the welding rod with cast iron solder flux is existed
Commissure is melted under conditions of 500 DEG C.Then butt-welding fitting is heated to after 700 DEG C of insulation 50min Slow cooling to eliminate inside
Stress.The weight ratio of its medium cast iron solder flux and welding rod is 1:16.
Embodiment 4
A kind of cast iron solder flux, cast iron solder flux is mainly mixed by following raw material：The parts by weight of manganese oxide 72, the weight of carbon dust 6
Part, 0.5 parts by weight of the parts by weight of silica 5, the parts by weight of calcium oxide 10, the parts by weight of iron powder 14, cast iron grain, the parts by weight of bonding agent 5
And the parts by weight of polysorbate 1.
A kind of welding method, including：At 18-20mm around clean welds after 55 ° -65 ° of weld seam bevel, welding rod is soaked
Enter in cast iron solder flux so that cast iron solder flux is attached to electrode surface, the welding rod with cast iron solder flux is melted under conditions of 500 DEG C
Change to commissure.Then butt-welding fitting is heated to after 700 DEG C of insulation 50min Slow cooling to eliminate internal stress.Its medium cast iron is welded
The weight ratio of agent and welding rod is 1:15.
Embodiment 5
A kind of cast iron solder flux, cast iron solder flux is mainly mixed by following raw material：The parts by weight of manganese oxide 74, the weight of carbon dust 9
Part, 0.5 parts by weight of the parts by weight of silica 7, the parts by weight of calcium oxide 10, the parts by weight of iron powder 14, cast iron grain, the parts by weight of bonding agent 5
And the parts by weight of polysorbate 1, the parts by weight of dodecyl sodium sulfate 2.
A kind of welding method, including：At 18-20mm around clean welds after 55 ° -65 ° of weld seam bevel, welding rod is soaked
Enter in cast iron solder flux so that cast iron solder flux is attached to electrode surface, the welding rod with cast iron solder flux is melted under conditions of 500 DEG C
Change to commissure.Then butt-welding fitting is heated to after 650 DEG C of insulation 70min Slow cooling to eliminate internal stress.Its medium cast iron is welded
The weight ratio of agent and welding rod is 1:15.
Embodiment 6
A kind of cast iron solder flux, cast iron solder flux is mainly mixed by following raw material：The parts by weight of manganese oxide 75, the weight of carbon dust 12
Part, the parts by weight of silica 3, the parts by weight of calcium oxide 6, the parts by weight of iron powder 13, cast iron grain 2 parts by weight, the parts by weight of bonding agent 6 and
The parts by weight of polysorbate 1, the parts by weight of DTAB 1.
A kind of welding method, including：At 18-20mm around clean welds after 55 ° -65 ° of weld seam bevel, welding rod is soaked
Enter in cast iron solder flux so that cast iron solder flux is attached to electrode surface, the welding rod with cast iron solder flux is melted under conditions of 450 DEG C
Change to commissure.Then butt-welding fitting is heated to after 650 DEG C of insulation 60min Slow cooling to eliminate internal stress.Its medium cast iron is welded
The weight ratio of agent and welding rod is 1:14.
Embodiment 7
A kind of cast iron solder flux, cast iron solder flux is mainly mixed by following raw material：The parts by weight of manganese oxide 70, the weight of carbon dust 11
Part, the parts by weight of silica 8, the parts by weight of calcium oxide 5, the parts by weight of iron powder 15, cast iron grain 1.5 parts by weight, the parts by weight of bonding agent 7 with
And the parts by weight of polysorbate 1, the parts by weight of dodecyl sodium sulfate 1, the parts by weight of DTAB 1.
A kind of welding method, including：At 18-20mm around clean welds after 55 ° -65 ° of weld seam bevel, welding rod is soaked
Enter in cast iron solder flux so that cast iron solder flux is attached to electrode surface, the welding rod with cast iron solder flux is melted under conditions of 420 DEG C
Change to commissure.The weight ratio of its medium cast iron solder flux and welding rod is 1:15.
In summary, a kind of cast iron solder flux and welding method of the embodiment of the present invention, the material rate of cast iron solder flux is closed
Suitable, during weld seam for welding grey cast-iron, good penetrability, crack resistance are high, and fusion character is good.Each composition in its raw material exists
The slag of face of weld can be molten into the presence of electric arc, weld metal can be protected to completely cut off gas intrusion in liquid molten
Pond.The ferro element in carbon and iron powder in carbon dust can be fused into alloy at high temperature, the composition with Grey Cast Iron Weld
It is similar, the fusion character of cast iron solder flux and weld seam can be increased.Appropriate manganese, silicon, iron, calcium etc. are with the addition of in the raw material of cast iron solder flux
Alloying element, has the effect such as good penetrability, crack resistance height in commissure.There are a variety of dystectic oxygen in the raw material of cast iron solder flux
Compound, these oxides are as the nucleator of bath liquid metals, and the crystal grain refinement that solidification can be promoted to be formed prevents weld seam from producing
Raw crackle.
A kind of welding method, this method coordinates welding rod to use using above-mentioned cast iron solder flux, with preferable welding effect.
Embodiments described above is a part of embodiment of the invention, rather than whole embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Claims (10)
1. a kind of cast iron solder flux, it is characterised in that the cast iron solder flux is mainly mixed by following raw material：Manganese oxide 65-75
Parts by weight, carbon dust 6-12 parts by weight, silica 3-8 parts by weight, calcium oxide 5-10 parts by weight and iron powder 8-15 parts by weight.
2. cast iron solder flux according to claim 1, it is characterised in that the manganese oxide is 68-72 parts by weight, the carbon dust
For 7-10 parts by weight, the silica is 4-6 parts by weight, and the calcium oxide is 6-8 parts by weight, and the iron powder is 10-12 weights
Measure part.
3. cast iron solder flux according to claim 1, it is characterised in that the manganese oxide is 70 parts by weight, the carbon dust is 8
Parts by weight, the silica is 5 parts by weight, and the calcium oxide is 7 parts by weight, and the iron powder is 10 parts by weight.
4. cast iron solder flux according to claim 1, it is characterised in that the mass fraction of the manganese element in the manganese oxide is
The mass fraction of carbon in 55wt%-65wt%, the carbon dust is 60wt%, the matter of the element silicon in the silica
Amount fraction is 43wt%, and the mass fraction of the calcium constituent in the calcium oxide is the matter of the ferro element in 62wt%, the iron powder
Amount fraction is 95wt%.
5. cast iron solder flux according to claim 1, it is characterised in that the raw material also includes bonding agent 4-7 parts by weight.
6. cast iron solder flux according to claim 1, it is characterised in that the raw material also includes cast iron grain 0.5-2 parts by weight.
7. cast iron solder flux according to claim 1, it is characterised in that the raw material also includes surfactant 1-3 weight
Part, the surfactant includes at least one in polysorbate, dodecyl sodium sulfate and DTAB
Kind.
8. a kind of welding method, it is characterised in that including：18- around the weld seam will be cleaned after 55 ° -65 ° of weld seam bevel
At 20mm, the cast iron solder flux described in claim any one of 1-7 is attached to the surface of welding rod, by with the cast iron solder flux
The welding rod is melted to the commissure under conditions of 400-500 DEG C.
9. welding method according to claim 8, it is characterised in that the welding rod with the cast iron solder flux exists
It is melted under conditions of 400-500 DEG C behind the commissure, 600-700 DEG C of insulation 50-70min is heated to the weld seam.
10. welding method according to claim 8, it is characterised in that the weight ratio of the cast iron solder flux and the welding rod
For 1:14-16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710583411.1A CN107214439A (en) | 2017-07-17 | 2017-07-17 | A kind of cast iron solder flux and welding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710583411.1A CN107214439A (en) | 2017-07-17 | 2017-07-17 | A kind of cast iron solder flux and welding method |
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| Publication Number | Publication Date |
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| CN107214439A true CN107214439A (en) | 2017-09-29 |
Family
ID=59953307
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| CN201710583411.1A Pending CN107214439A (en) | 2017-07-17 | 2017-07-17 | A kind of cast iron solder flux and welding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175618A (en) * | 2018-08-23 | 2019-01-11 | 江苏艾威机械制造有限公司 | A kind of agricultural machinery welding machine frame method |
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| JPS50131834A (en) * | 1974-03-30 | 1975-10-18 | ||
| SU948589A1 (en) * | 1970-07-03 | 1982-08-07 | за витель , , . . ., . . В. А. Бугаенко ,. , | Electrode for welding cast iron |
| US20050199317A1 (en) * | 2004-03-09 | 2005-09-15 | National Chiao Tung University | Welding flux for use in arc-welding of stainless steels, method of welding stainless steel members using the welding flux |
| CN101138815A (en) * | 2006-09-07 | 2008-03-12 | 景航企业股份有限公司 | Active scaling powder for soldering stainless steel |
| CN101850489A (en) * | 2010-04-16 | 2010-10-06 | 天津市英源焊接技术有限公司 | Process method for welding and repairing sintering trolley |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1005506A (en) * | 1963-06-26 | 1965-09-22 | Murex Welding Processes Ltd | An improved submerged arc welding flux |
| SU948589A1 (en) * | 1970-07-03 | 1982-08-07 | за витель , , . . ., . . В. А. Бугаенко ,. , | Electrode for welding cast iron |
| JPS50131834A (en) * | 1974-03-30 | 1975-10-18 | ||
| US20050199317A1 (en) * | 2004-03-09 | 2005-09-15 | National Chiao Tung University | Welding flux for use in arc-welding of stainless steels, method of welding stainless steel members using the welding flux |
| CN101138815A (en) * | 2006-09-07 | 2008-03-12 | 景航企业股份有限公司 | Active scaling powder for soldering stainless steel |
| CN101850489A (en) * | 2010-04-16 | 2010-10-06 | 天津市英源焊接技术有限公司 | Process method for welding and repairing sintering trolley |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175618A (en) * | 2018-08-23 | 2019-01-11 | 江苏艾威机械制造有限公司 | A kind of agricultural machinery welding machine frame method |
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