CN85107951B - High-efficient low-dust iron powder welding rod - Google Patents
High-efficient low-dust iron powder welding rodInfo
- Publication number
- CN85107951B CN85107951B CN85107951A CN85107951A CN85107951B CN 85107951 B CN85107951 B CN 85107951B CN 85107951 A CN85107951 A CN 85107951A CN 85107951 A CN85107951 A CN 85107951A CN 85107951 B CN85107951 B CN 85107951B
- Authority
- CN
- China
- Prior art keywords
- welding
- welding rod
- iron powder
- low
- coating
- 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.)
- Expired
Links
- 238000003466 welding Methods 0.000 title claims abstract description 50
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000000428 dust Substances 0.000 title claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 8
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- 229910002551 Fe-Mn Inorganic materials 0.000 claims description 3
- 229910017082 Fe-Si Inorganic materials 0.000 claims description 3
- 229910002593 Fe-Ti Inorganic materials 0.000 claims description 3
- 229910017133 Fe—Si Inorganic materials 0.000 claims description 3
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 2
- 235000010410 calcium alginate Nutrition 0.000 claims description 2
- 239000000648 calcium alginate Substances 0.000 claims description 2
- 229960002681 calcium alginate Drugs 0.000 claims description 2
- OKHHGHGGPDJQHR-YMOPUZKJSA-L calcium;(2s,3s,4s,5s,6r)-6-[(2r,3s,4r,5s,6r)-2-carboxy-6-[(2r,3s,4r,5s,6r)-2-carboxylato-4,5,6-trihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylate Chemical compound [Ca+2].O[C@@H]1[C@H](O)[C@H](O)O[C@@H](C([O-])=O)[C@H]1O[C@H]1[C@@H](O)[C@@H](O)[C@H](O[C@H]2[C@H]([C@@H](O)[C@H](O)[C@H](O2)C([O-])=O)O)[C@H](C(O)=O)O1 OKHHGHGGPDJQHR-YMOPUZKJSA-L 0.000 claims description 2
- 239000004014 plasticizer Substances 0.000 claims description 2
- 235000010413 sodium alginate Nutrition 0.000 claims description 2
- 239000000661 sodium alginate Substances 0.000 claims description 2
- 229940005550 sodium alginate Drugs 0.000 claims description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract description 4
- 239000008199 coating composition Substances 0.000 abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 4
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 3
- 239000002893 slag Substances 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract description 2
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 14
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Nonmetallic Welding Materials (AREA)
Abstract
The present invention relates to a high-efficiency low-dust iron powder welding electrode. It is mainly suitable for welding low-carbon steel or common low-alloy steel. The welding rod is mainly characterized in that the coating formula is adjusted to SiO2The content is lower than the content which is usually necessary for ensuring the welding process performance, so that the welding rod can ensure good welding rod process performance (such as small splashing, easy slag removal, beautiful forming, excellent re-arc striking performance and the like), relatively low dust generation amount (less than 5 g/kg) and high welding efficiency (the deposition efficiency is more than or equal to 155 percent).
Description
The invention belongs to welding material.Mainly be applicable to welding low-carbon steel and ordinary low-alloy steel.
The flue dust that is produced when adopting the welding rod welding is harmful to health.The principal element that influences powder amount during welding is the variation of electrode coating composition and welding conditions.Under the constant condition of welding conditions, the main path that reduces powder amount is to change coating to form, as reducing the content of materials such as carbonate, organic matter, silica sand.But, reduce or increase some composition in the coating separately, though the powder amount of welding rod is reduced, but may cause the deterioration of slag physical property, can not guarantee suitable viscosity, flowability and surface tension etc., thereby welding technological properties is degenerated, bring difficulty, and influence the quality of weld seam to welding operation.
Day disclosure is speciallyyed permit clear 57-134296 and has been introduced a kind of angle seam welding welding rod.The chemical composition of its coating is (weight %): 15～24%SiO
2, 4～13%TiO
2, 3～10%CaCO
3, 1～4%(FeO+Fe
2O
3), 0.7～6%ZrO
2, 4～10%Mn, 35～55%Fe.What day disclosure speciallyyed permit that clear 57-72793 provides also is a kind of angle welding welding rod, and its chemical composition of coating (weight %) is: 10～30%SiO
2, 2～20%TiO
2, 0.5～15%MgO, 5～15%Mn, 15～50%Fe, FeO＜10%, Al
2O
3＜5%, carbonate＜15%, organic matter＜5%.Above-mentioned two kinds of welding rods all are with SiO
2Acid high efficiency fe powder covered electrode for main component.SiO
2The content height, TiO
2Content is few.Japan " Kobe Steel skill newspaper " 1976, № 4, mention SiO in P.44～47
2Powder amount be TiO
26～7 times, as seen, the powder amount of above-mentioned two kinds of welding rods is higher.
In order to reduce powder amount, only with the SiO in the coating
2Content reduces (less than 10%), and then viscosity coefficient of dross descends, and skull is topped inhomogeneous, and shaping surface is bad, even can produce defective such as undercut, and welding technological properties is worsened.
Purpose of the present invention is intended to solve the disadvantage of the welding technological properties deterioration that brings because of reduction welding rod powder amount, makes the existing good welding technological properties of welding rod, has low powder amount and high welding efficiency again.
Its solution is: at SiO
2Content is lower than to be generally and guarantees by adjusting the excellent fit ratio of each component in the electrode coating composition, to make it to guarantee good welding technological properties under the necessary content range situation of welding technological properties, and the powder amount of welding rod is further reduced.Other measure of reduction powder amount is the addition of restricted carbonate also, does not add organic matter and improves TiO
2Contain
Amount etc.The measure that improves welding efficiency mainly is the iron content that increases in the coating.
According to above-mentioned intention, the concrete chemical composition of covering of an electrode of the present invention following (percentage by weight): 15～35%TiO
2, CaCO
3, MgCO
3, BaCO
3In one or more sums less than 10%, 2～10%Fe-Mn, SiO
2＜10%, Al
2O
3＜10%, ZrO
2＜7%, one or both sums among Fe-Ti and the Fe-Si are less than 10%, iron powder＞40%.In coating, also add plasticizer such as an amount of sodium alginate, calcium alginate.Adopt waterglass that mentioned component scope coating is coated on mild steel or the ordinary low-alloy steel core wire, promptly make high efficiency low dust iron powder welding electrode of the present invention.
When adopting the welding of this welding rod, it is little to splash, and it is easy to take off slag, and it is attractive in appearance to be shaped, the restarting excellent performance, and the current interruption time was greater than the still starting the arc smoothly in 60 seconds.The powder amount of this welding rod reduces by 30～50% than common iron powder lime-titania type electrode below 5 gram/kilograms.The deposition efficiency of welding rod can reach more than 155%, adds to shorten the auxiliary labor time, and welding labor productivity is enhanced about more than once.
This welding rod can adopt two kinds of power supplys of alternating current-direct current, all can weld in downhand welding or flat fillet weld position.
Embodiment
According to the chemical composition of coating scope that the present invention sets, prepared four kinds of electrode coating compositions, as shown in table 1.After adding an amount of binding agent, four kinds of coating paints difference extrusions that prepare on the HO8A core wire, are made four kinds of welding rods, and welded on the mild steel steel plate respectively.The result shows that the general welding rod of powder amount significantly reduces when welding, and welding technological properties is good, and labor productivity obviously improves.
The electrode coating chemical composition (weight %) of table 1, embodiment and welding effect
| Sequence number | TiO 2 | CaCO 3 | MgCO 3 | BaCO 3 | Fe-Mn | Al 2O 3 | SiO 2 | ZrO 2 |
| 1234 | 34262016 | 4652 | 2016 | 0131 | 5692 | 2108 | 2712 | 0305 |
Continuous table 1
| Fe-Si | Fe-Ti | Iron powder | Other * | Powder amount | Manufacturability | Efficient |
| 4211 | 2114 | 41435547 | 4444 | Few | Well " " " | Gao Gaogaogao |
Claims (2)
1, a kind of high efficiency low dust iron powder welding rod of acidity is characterized in that chemical composition of coating (weight %) is by 15～35%TiO
2, CaCO
3, MgCO
3, BaCO
3In one or more sums less than 10%, 2～10%Fe-Mn, SiO
2＜10%, Al
2O
3＜10%, ZrO
2＜7%, one or both sums among Fe-Ti and the Fe-Si are less than 10%, and iron powder is formed greater than 40%.
2,, it is characterized in that also having added in the coating plasticizer such as an amount of sodium alginate, calcium alginate according to the described welding rod of claim 1..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85107951A CN85107951B (en) | 1985-10-30 | 1985-10-30 | High-efficient low-dust iron powder welding rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85107951A CN85107951B (en) | 1985-10-30 | 1985-10-30 | High-efficient low-dust iron powder welding rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85107951A CN85107951A (en) | 1987-07-08 |
| CN85107951B true CN85107951B (en) | 1988-01-06 |
Family
ID=4795840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85107951A Expired CN85107951B (en) | 1985-10-30 | 1985-10-30 | High-efficient low-dust iron powder welding rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85107951B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323799C (en) * | 2005-01-21 | 2007-07-04 | 中国船舶重工集团公司第七二五研究所 | Low alloy high-toughness electric welding rod containing copper |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5194586B2 (en) | 2006-07-05 | 2013-05-08 | 新日鐵住金株式会社 | Stainless steel flux-cored welding wire for galvanized steel sheet welding |
-
1985
- 1985-10-30 CN CN85107951A patent/CN85107951B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323799C (en) * | 2005-01-21 | 2007-07-04 | 中国船舶重工集团公司第七二五研究所 | Low alloy high-toughness electric welding rod containing copper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85107951A (en) | 1987-07-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |