CN101028676A - Low-alloy steel welding wire containing cerium oxide - Google Patents
Low-alloy steel welding wire containing cerium oxide Download PDFInfo
- Publication number
- CN101028676A CN101028676A CN 200710020978 CN200710020978A CN101028676A CN 101028676 A CN101028676 A CN 101028676A CN 200710020978 CN200710020978 CN 200710020978 CN 200710020978 A CN200710020978 A CN 200710020978A CN 101028676 A CN101028676 A CN 101028676A
- Authority
- CN
- China
- Prior art keywords
- low
- alloy steel
- cerium oxide
- welding rod
- containing cerium
- 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
Landscapes
- Nonmetallic Welding Materials (AREA)
Abstract
A welding low-alloy steel electrode containing cerium oxide is composed of a coated layer prepared proportionally from marble, fluorite, ferrotitanium, low-carbon ferrosilicon, middle-carbon ferromanganese, mica, sodium carbonate and CeO2-5, and a core made of H08A steel. It has high tension strength, yield strength and impact strength.
Description
Technical field
The present invention relates to technical field of welding materials, specifically is a kind of low-alloy steel electrode of oxidation-containing cerium.
Background technology
Typical low-alloy steel electrodes such as existing E5515 type are as welding carbon equivalent C
EDuring Hi-Stren steels such as＞0.4% medium carbon steel and Q390, for avoiding producing hardened structure and crackle, need adopt special technological measure during welding, as weld preheating to 250 ℃～400 ℃, adopt thin welding rod, little electric current to reduce the depth of fusion of mother metal, slow down the cooling velocity of heat affected area; Postheating and carry out stress relief annealing etc.Increase the production cycle in the middle of this is invisible, increased production cost.Though this type of welding rod price is low, performance is low, the production cost height.
The ultralow hydrogen type electrode that has worked out at present (J * * * H), high-tenacity welding electrodes (J * * * GR) and high toughness super low hydrogen electrode (J * * * welding rod special for special such as RH), the price of these welding rods is more than 1.5 times of common low-alloy high-strength steel covered are welding electrode, though performance height, but price is also high, has therefore limited applying of these welding rods.
Through consulting document, the application of rare earth material in electrode coating, mostly be applied on the surfacing welding at present, several applications is also arranged on low-alloy steel electrode, but usefulness is the more of light rare earth and heavy rare earth mixing or heavy rare earth, because heavy rare earth is more expensive, therefore also make these low-alloy steel electrode price height, the ratio of performance to price is not high.
Separately the light rare earth oxide is used on the electrode coating, still finds no bibliographical information.
Summary of the invention
The low-alloy steel electrode that the purpose of this invention is to provide a kind of oxidation-containing cerium solves the deficiency of above-mentioned welding rod.Do not need preheating before the weldering, need not adopt thin welding rod, little electric current, postwelding does not need to carry out stress relief annealing, has shortened the production cycle, has reduced production cost.Price is low, performance height, cost performance height.
The present invention adopts following technical scheme to realize: a kind of low-alloy steel electrode of oxidation-containing cerium, and compositions of surfacing metal and weight ratio are: marble 39-48%, fluorite 18-26%, ferrotianium 10-12%, low-carbon ferrosilicon 5-8%, mid-carbon fe-mn 3-6%, mica 4-4.5%, soda ash 0.5-1%, CeO
2-5 is 2.6-3.4%.
Compositions of surfacing metal and weight ratio are preferably: marble 46.3%, and fluorite 24.9%, ferrotianium 10.7%, low-carbon ferrosilicon 7%, mid-carbon fe-mn 5.9%, mica 4.3%, soda ash 1%, CeO2-5 are 3%.
The medicinal powder material of said components is mixed the back make binding agent, on the H08A core wire that on the piston type hydraulic press at diameter is 4mm, make low-alloy steel electrode its extrusion with sodium silicate.
Advantage of the present invention is: do not need preheating before the weldering, need not adopt thin welding rod, little electric current, postwelding does not need to carry out stress relief annealing, has shortened the production cycle, has reduced production cost.Price is low, performance height, cost performance height.
The specific embodiment
Below in conjunction with embodiment and experimental example the solution of the present invention and effect are further specified.
Experimental selection of the present invention be that the trade mark is CeO
2-5 regular grade cerium oxide product also is the most cheap a kind of of price in the cerium oxide, and its chemical composition is as shown in table 1.Select for use by electrode coating transition Rare-Earth Ce O
2Mode, with the mechanical property of improving welding rod and the structure property of deposited metal.Selecting alkaline purpose big, the less basic slag system of oxidisability for use is to reduce the scaling loss of cerium oxide under welding condition.
Table 1 CeO
2-5 chemical composition
| Product grade | Chemical analysis % | ||||||||||||||
| REO ≥ | CeO 2 REO ≥ | Impurity content≤ | |||||||||||||
| Rare earth impurities/REO RE | Non-rare earth impurity Non-RE | ||||||||||||||
| CeO 2 | Pr 6O 11 | Nd 2O 3 | Sm 2O 3 | Y 2O 3 | Fe 2O 3 | SiO 2 | CaO | MnO 2 | CuO | SO 4＝ | PO 4＝ | F- | |||
| CeO 2 -5 | 99 | 99.0 | Content 1.0 | 0.05 | 0.05 | 0.05 | / | / | / | / | |||||
Do not add CeO
2Welding rod (being E 5515-G type welding rod) coating recipe be reference examples.As shown in table 2.
Table 2 does not add CeO
2Welding rod coating recipe
| Component | Marble | Fluorite | Ferrotianium | Low silicon | Middle manganese | Mica | Soda ash |
| Each component addition (g, the coating gross weight is 350g) | 162 | 87 | 37.5 | 24.5 | 20.5 | 15 | 3.5 |
| The content (%) of each component in coating | 46.3 | 24.9 | 10.7 | 7 | 5.9 | 4.3 | 1 |
Select to add cerium oxide, but the amount of cerium oxide should be suitable.When the content of cerium oxide in the coating very little in 2.6% its effect when following, at the mechanical property of 3.4% deposited metal of severe exacerbation when above and the tissue of deposited metal.In testing novel coating recipe during oxidation-containing cerium 2.6-3.4% usability of electrode can and the mechanical property better (actual content of cerium oxide is more much smaller than 2.6-3.4% in deposited metal) of deposited metal.The rolling mill practice of new type of electrode is identical with the rolling mill practice of common low-alloy steel electrode (as E5515 type welding rod).Add Rare-Earth Ce O
2After, because rare earth element easily generates high-melting-point and oxide, sulfide and oxygen sulfur compound etc. that at high temperature plasticity is very little with oxygen and sulphur, can play the effect of desulfating and deoxidation change inclusion morphology.Add the microscopic structure that the proper amount of rare-earth oxide can the refinement deposited metal, rare earth can reduce the hydrogen in the deposited metal, thereby has significantly improved the impact flexibility of deposited metal.Mechanical property is best when the cerium oxide that adds 3%, sees Table 3.
Table 3 does not add and adds CeO
2The comparison of mechanical property of welding rod deposited metal
Adopt the Finder-1000 type X-ray energy spectrometer of BeiJing ZhongKe technology Co., Ltd that the deposited metal field trash is carried out scanning analysis (acquisition condition: accelerating potential: 20.00keV, live time: 44 seconds, the angle of emergence: 35.00 degree), find rare earth content seldom, percentage by weight maximum in weld seam is 0.2756%, sees shown in Figure 1.The electronic energy spectrum analysis result is as shown in table 4.This explanation is in molten drop inside, and rare earth oxide, rare-earth sulfide and rare-earth oxide sulfate major part that inner each reflection in molten bath generates enter residue, and small part remains in deposited metal becomes field trash.
Fig. 1 is the weld seam electronic energy spectrum
Table 4 electronic energy spectrum analysis result
| Element | The K ratio | The ZAF correction value | Percentage by weight % | Atomic percent % |
| Fe-(Ka) | 0.99729 | 0.9995 | 99.7244 | 99.8900 |
| Ce-(Lal) | 0.00271 | 0.9826 | 0.2756 | 0.1100 |
The new type of electrode performance is high, technique is simple, need not weld preheating, need not adopt thin welding rod, little electric current, postwelding also need not carry out annealing in process, although the welding rod manufacturing cost has improved 2.1% because before the weldering and postwelding need not to adopt special technological measure, so total production cost remains reduction. This welding rod cost performance is high. The weight that cerium oxide accounts for electrode coating is 3%, at present,
Oxidation-containing cerium weight is in the 350 gram medicinal powder: 350 * 3%g=0.0105kg
The weight that 350 gram medicinal powder can be made welding rod is: 350+10.5+350/0.30g=1.5272kg (gravity coefficient of coating is 0.30)
So the cerium oxide weight that the 1kg welding rod needs is: 0.0105/1.5272=0.006875kg
The 1kg welding rod needs the expense of cerium oxide to be: 30 * 0.006875=0.2063 unit
The expense of novel J557 welding rod per kilogram has improved:
Embodiments of the invention and result of the test
Embodiment 1: add CeO2Be 2.6%. Not preheating need not be adopted thin welding rod, little electric current before weldering, and postwelding need not carry out testing not adding with the mechanical property of the welding rod deposited metal that adds CeO2 in the situation of annealing in process, and the result that the new type of electrode performance improves is as shown in table 5:
Table 5 adds CeO2The mechanical property of welding rod deposited metal when being 2.6%
Embodiment 2: add CeO
2Be 3%.Not preheating need not be adopted thin welding rod, little electric current before weldering, and postwelding need not carry out testing not adding with the mechanical property of the welding rod deposited metal that adds CeO2 under the situation of annealing in process, and the result that the new type of electrode performance improves is as shown in table 6:
Table 6 adds CeO
2It is the mechanical property of 3% o'clock welding rod deposited metal
Embodiment 3: add CeO
2Be 3.4%.Not preheating need not be adopted thin welding rod, little electric current before weldering, and postwelding need not carry out testing not adding with the mechanical property of the welding rod deposited metal that adds CeO2 under the situation of annealing in process, and the result that the new type of electrode performance improves is as shown in table 7:
Table 7 adds CeO
2It is the mechanical property of 3.4% o'clock welding rod deposited metal
Claims (2)
1. the low-alloy steel electrode of an oxidation-containing cerium, it is characterized in that: mix by the medicinal powder material of following each component and make basic coating, each component of electrode coating and weight ratio are: marble 39-48%, fluorite 18-26%, ferrotianium 10-12%, low-carbon ferrosilicon 5-8%, mid-carbon fe-mn 3-6%, mica 4-4.5%, soda ash 0.5-1%, CeO
2-5 is 2.6-3.4%.
2. the low-alloy steel electrode of oxidation-containing cerium according to claim 1 is characterized in that, each component of electrode coating and weight ratio are: marble 46.3%, fluorite 24.9%, ferrotianium 10.7%, low-carbon ferrosilicon 7%, mid-carbon fe-mn 5.9%, mica 4.3%, soda ash 1%, CeO
2-5 is 3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100209784A CN100460137C (en) | 2007-03-30 | 2007-03-30 | Low-alloy steel welding wire containing cerium oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100209784A CN100460137C (en) | 2007-03-30 | 2007-03-30 | Low-alloy steel welding wire containing cerium oxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101028676A true CN101028676A (en) | 2007-09-05 |
| CN100460137C CN100460137C (en) | 2009-02-11 |
Family
ID=38714328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100209784A Expired - Fee Related CN100460137C (en) | 2007-03-30 | 2007-03-30 | Low-alloy steel welding wire containing cerium oxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100460137C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962745A (en) * | 2014-04-18 | 2014-08-06 | 上海电力修造总厂有限公司 | Core wire and coating of acid slag system stainless steel electrode and preparation method of acid slag system stainless steel electrode |
| CN104117784A (en) * | 2014-05-30 | 2014-10-29 | 安徽升鸿电子有限公司 | Welding rod additive containing cerium oxide and method for preparing welding rod additive containing cerium oxide |
| CN106425167A (en) * | 2016-12-06 | 2017-02-22 | 攀枝花学院 | High-hardness J507 welding rod and preparation method thereof |
| CN106670679A (en) * | 2016-12-06 | 2017-05-17 | 攀枝花学院 | High-tensile-strength J507 welding rod and preparation method thereof |
| CN106736002A (en) * | 2016-12-06 | 2017-05-31 | 攀枝花学院 | A kind of J507 welding rods and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089200A (en) * | 1992-12-29 | 1994-07-13 | 陈保国 | Rare-earth type crack-resisting welding electrode without preheating for build-up welding |
| JP2942142B2 (en) * | 1994-03-31 | 1999-08-30 | 株式会社神戸製鋼所 | Low hydrogen coated arc welding rod |
| CN1056794C (en) * | 1995-10-24 | 2000-09-27 | 李向荣 | Preheating-free high anti-cracking surfacing welding electrode |
| CN1152491A (en) * | 1995-12-18 | 1997-06-25 | 邢台神光焊接有限公司 | Surfacing welding electrode for roller |
-
2007
- 2007-03-30 CN CNB2007100209784A patent/CN100460137C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962745A (en) * | 2014-04-18 | 2014-08-06 | 上海电力修造总厂有限公司 | Core wire and coating of acid slag system stainless steel electrode and preparation method of acid slag system stainless steel electrode |
| CN103962745B (en) * | 2014-04-18 | 2016-08-24 | 中国电建集团上海能源装备有限公司 | Acid slag system stainless steel electrode and coating thereof |
| CN104117784A (en) * | 2014-05-30 | 2014-10-29 | 安徽升鸿电子有限公司 | Welding rod additive containing cerium oxide and method for preparing welding rod additive containing cerium oxide |
| CN104117784B (en) * | 2014-05-30 | 2016-10-26 | 安徽升鸿电子有限公司 | Welding rod additive of oxidation-containing cerium and preparation method thereof |
| CN106425167A (en) * | 2016-12-06 | 2017-02-22 | 攀枝花学院 | High-hardness J507 welding rod and preparation method thereof |
| CN106670679A (en) * | 2016-12-06 | 2017-05-17 | 攀枝花学院 | High-tensile-strength J507 welding rod and preparation method thereof |
| CN106736002A (en) * | 2016-12-06 | 2017-05-31 | 攀枝花学院 | A kind of J507 welding rods and preparation method thereof |
| CN106670679B (en) * | 2016-12-06 | 2019-02-05 | 攀枝花学院 | High tensile J507 welding rod and preparation method thereof |
| CN106736002B (en) * | 2016-12-06 | 2019-11-05 | 攀枝花学院 | A kind of J507 welding rod and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100460137C (en) | 2009-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101028676A (en) | Low-alloy steel welding wire containing cerium oxide | |
| CN103551760B (en) | A kind of nuclear power carbon steel welding carbon steel and preparation method | |
| CN1368419A (en) | Welding rod and method for reducing manganese from welding smoke | |
| CN1923431A (en) | High ductility climate resistant solder stick with tensile strength of 600MPa | |
| CN102794583B (en) | Preheat-free welding rod and manufacturing method and application thereof | |
| CN104889608B (en) | A kind of structural steel welding alkaline flux-cored wire | |
| CN105880870B (en) | A kind of high-tenacity heat-resistant steel electrode | |
| JP5627493B2 (en) | Submerged arc welding method | |
| CN106181122B (en) | A kind of seamless submerged arc flux-cored wire for yield strength 550MPa steel | |
| CN1769002A (en) | Homogeneous electric welding rod/flame welding wire for welding gray cast iron and ductile cast-iron | |
| CN1056794C (en) | Preheating-free high anti-cracking surfacing welding electrode | |
| CN1240516C (en) | Welding wire of filling flux of gas protection electric arc welding using for high-strength steel | |
| CN101653875B (en) | Flux-cored hard facing welding electrode | |
| CN110153586B (en) | Ultralow-hydrogen moisture-absorption-resistant welding electrode with seamless flux-cored wire as core wire and preparation method thereof | |
| CN100467195C (en) | Metal powder core filler metal for welding of high-tensile steel | |
| CN1068270C (en) | Gas shield cored electrode for high ductility all position welding | |
| CN1788919A (en) | High alkalinity, low activity, superlow hydrogen sintering type solder | |
| CN100553857C (en) | The mild steel arc welding electrode that contains lanthanum, yttrium | |
| CN1818094A (en) | Steel liquid cleaner for steel smelting | |
| DE10334959A1 (en) | Cored wire electrode for joint welding components made from high strength aluminum alloys in vehicle construction and in the electronics industry comprises a tubular sleeve containing powdered components fused by external heating | |
| CN110936060A (en) | Alkaline high-strength steel flux-cored wire | |
| CN110253172A (en) | A kind of high-strength steel Ar-CO2Metal powder core solder wire used for gas shield welding | |
| DE102012004725B4 (en) | Silicon-containing copper-nickel-zinc alloy | |
| CN105290642B (en) | A kind of anti-oxidant tin copper series alloy solder | |
| CN1060223C (en) | Iron-base powder-metallurgy anti-friction structural material and preparation method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20130330 |