CN1034560C - High-efficiency weather proof irons steel welding rod - Google Patents
High-efficiency weather proof irons steel welding rod Download PDFInfo
- Publication number
- CN1034560C CN1034560C CN 94118438 CN94118438A CN1034560C CN 1034560 C CN1034560 C CN 1034560C CN 94118438 CN94118438 CN 94118438 CN 94118438 A CN94118438 A CN 94118438A CN 1034560 C CN1034560 C CN 1034560C
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- welding
- welding rod
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- irons
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Abstract
The present invention relates to a high-efficiency iron powder welding rod for weathering steel, which is suitable for welding weathering steel. A steel core of the welding rod of the present invention is an H08A welding wire, and a coating has the following components by weight percentage: 2 to 4 wt% of CaCO3, 1 to 3 wt% of MgCO3, 22 to 28 wt% of TiO2, 10 to 15 wt% of SiO2, 6 to 10 wt% of Mn-Fe, 0.5 to 1.5 wt% of Ti-Fe, 1 to 2 wt% of W, 0.8 to 1.2 wt% of Cu, 1 to 2 wt% of rare earth and iron powder as the rest. The welding rod of the present invention has the characteristics of good welding technological property, flat welding, flat fillet welding, horizontal fillet welding, high deposition efficiency, etc. The welding rod of the present invention is suitable for two welding power supplies of an alternating current and a direct current.
Description
The invention belongs to field of welding material, be applicable to the iron powder electrode of making weathering steel.
At present, general weathering steel welding rod, as J502WGu (meeting GB trade mark E5003-G), because of adopting W-Cu non-corrosive alloy system, seam organization has good corrosion resistance, can satisfy the welding needs of weathering steel product, its prescription (weight %) composed as follows:
TiO
2：38.7 CaCO
3：7.2 MgCO
3：2.6
SiO
2：12.6 Mn-Fe：12-14 Ti-Fe：1-2
W： 0.8-1.2 Cu： 0.7-1.0 NaCO
3：1-2
K
2O:0.5-0.6 Na
2O:0.4-0.5 Al
2O
3: 9.2 from the prescription composition as can be seen: ferroalloy is less the coating material, the deoxidant element that Mn-Fe, Ti-Fe are just necessary.Just form deposited metal behind the core wire metal molten, its deposition efficiency only is about 80%, does not have efficient advantage.In order to improve welding efficiency, both at home and abroad all at the high efficiency fe powder covered electrode of the different purposes of development and application.When the deposition efficiency of welding rod 145% when above, because the increase and the minimizing of auxiliary labor time of deposited metal can make welding efficiency be enhanced about more than once.
The object of the present invention is to provide the good high-efficiency weather proof irons steel welding rod of a kind of welding technological properties.
The present invention is a kind of weathering steel welding rod that contains W, Cu, it is characterized in that covering of an electrode composition (weight %) is:
CaCO
3：2-4 MgCO
3：1-3 TiO
2： 22-28
SiO
2： 10-15 Mn-Fe：6-10 Ti-Fe：0.5-1.5
W:1-2 Cu:0.8-1.2 rare earth: 1-2
All the other are iron powder.
Welding rod of the present invention adopts waterglass to make binding agent, and the medicinal powder of mentioned component is mixed the back extrusion on the HO8A core wire, and production method is same as the prior art.
Technical scheme of the present invention is to adopt W-Cu non-corrosive alloy system, adds a large amount of iron powders in the coating, adds a certain amount of rare earth element simultaneously.
Because of the present invention adopts the W-Cu alloy system, and segregation easily takes place in W in seam organization, low-temperature impact toughness is reduced and instability.Add the deposition efficiency that a large amount of iron powders can improve welding rod in the coating, but easily make ferrite alligatoring in the seam organization, reduce weld seam impact toughness, so the present invention adds a certain amount of rare earth, rare earth can carry out nodularization, refinement to intergranular eutectoid thing, field trash, their size is reduced, alteration of form, and butt welded seam is organized and has also been played refining effect.Simultaneously, rare earth also can improve the deoxidizing capacity of slag, and the transition of Mn element is played a protective role, and increases the Mn content in the weld seam, thereby, the low-temperature flexibility of weld metal is improved, and decay resistance also have improvement.Along with the adding of rare earth, usability of electrode can have clear improvement, form take off slag easily, little, the advantage such as shaping is attractive in appearance, restarting is easy of splashing.
Welding rod of the present invention except that having the decay resistance suitable with prior art, its outstanding advantage be to have higher deposition efficiency (＞145%) and seam organization even, normal low-temperature impact toughness is higher and stable, the welding technological properties excellence.
Welding rod of the present invention can adopt two kinds of sources of welding current of AC and DC, is applicable to downhand welding, flat fillet weld and horizontal fillet welding, the deposition efficiency height.Be applicable to the weathering steel welding.
Embodiment:
According to compositions of surfacing metal scope of the present invention, prepare two kinds of welding rods, it is as follows specifically to fill a prescription:
Table 1 electrode coating composition
| CaCO 3 | MgCO 3 | TiO 2 | SiO 2 | Mn-Fe | Ti-Fe | W | Cu | Rare earth | Iron powder | |
| 1 | 2.2 | 2.6 | 27 | 12 | 9 | 1.2 | 1.2 | 0.8 | 1.3 | Surplus |
| 2 | 3.8 | 1.5 | 24 | 13 | 7 | 1 | 1.6 | 0.9 | 1.8 | Surplus |
The medicinal powder for preparing adds on the HO8A welding wire that sodium silicate binder mixes back extrusion Φ 4mm, welding rod external diameter Φ 8.2mm.After 48H dries in the shade, baking.Show by going up welding at weather-resistant steel plate (09CuPTiRe).Welding rod welding technological properties of the present invention is good, arc stability, and it is easy to take off slag, and welding bead is level and smooth, and it is attractive in appearance to be shaped.Chemical composition and deposition efficiency see Table 2, and corrosion resistance is suitable with the weathering steel mother metal.
Table 2 welding rod deposited metal composition and deposition efficiency
| C | Si | Mn | P | S | Cu | W | Deposition efficiency | |
| 1 | 0.09 | 0.2 | 0.6 | 0.018 | 0.02 | 0.42 | 0.3 | 148％ |
| 2 | 0.10 | 0.2 | 0.8 | 0.017 | 0.02 | 0.46 | 0.4 | 152％ |
Claims (1)
- A kind of weathering steel welding rod that contains W, Cu is characterized in that covering of an electrode composition (weight %) is:C 3CO 3：2-4 MgCO 3：1-3 TiO 2：22-28SiO 2： 10-15 Mn-Fe：6-10 Ti-Fe：0.5-1.5W:1-2 Cu:0.8-1.2 rare earth: 1-2All the other are iron powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94118438 CN1034560C (en) | 1994-11-20 | 1994-11-20 | High-efficiency weather proof irons steel welding rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94118438 CN1034560C (en) | 1994-11-20 | 1994-11-20 | High-efficiency weather proof irons steel welding rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1115705A CN1115705A (en) | 1996-01-31 |
| CN1034560C true CN1034560C (en) | 1997-04-16 |
Family
ID=5038835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94118438 Expired - Fee Related CN1034560C (en) | 1994-11-20 | 1994-11-20 | High-efficiency weather proof irons steel welding rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034560C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398250C (en) * | 2004-08-30 | 2008-07-02 | 宝山钢铁股份有限公司 | High-strength weather-resistant welding rod |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239429B (en) * | 2007-02-05 | 2011-08-17 | 天津三英焊业股份有限公司 | Low dust high crack-resistance flux-cored wire all position flux-cored wire and preparation thereof |
| CN106216884A (en) * | 2016-07-29 | 2016-12-14 | 安徽飞弧焊业股份有限公司 | A kind of Stability Analysis of Structures is without copper facing coating welding wire |
-
1994
- 1994-11-20 CN CN 94118438 patent/CN1034560C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398250C (en) * | 2004-08-30 | 2008-07-02 | 宝山钢铁股份有限公司 | High-strength weather-resistant welding rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1115705A (en) | 1996-01-31 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |