CN102275050A - High temperature abrasion resistance welding wire used at temperature of over 800 DEG C - Google Patents
High temperature abrasion resistance welding wire used at temperature of over 800 DEG C Download PDFInfo
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- CN102275050A CN102275050A CN2011102217692A CN201110221769A CN102275050A CN 102275050 A CN102275050 A CN 102275050A CN 2011102217692 A CN2011102217692 A CN 2011102217692A CN 201110221769 A CN201110221769 A CN 201110221769A CN 102275050 A CN102275050 A CN 102275050A
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Abstract
The invention relates to a high temperature abrasion resistance welding wire used at temperature of over 800 DEG C. The welding wire is characterized by comprising the following chemical constitutions in percentage by mass: 2 to 6 percent of carbon (C), 1 to 3 percent of manganese (Mn), 1 to 6 percent of silicon (Si), 26 to 35 percent of chromium (Cr), 0.05 to 0.6 percent of nitrogen (N) and the balance of ferrum (Fe) and inevitable impurity elements; and if a part of the Fe is replaced, the welding wire also comprises one or more of the following chemical constitutions in percentage by mass: 0 to 3 percent of molybdenum (Mo), 0 to 3 percent of tungsten (W) and 0 to 3 percent of niobium (Nb). The high temperature abrasion resistance welding wire used at the temperature of above 800 DEG C cures austenitic stainless steel used at the high temperature by using the characteristic of the element Si and adopting a large amount of Si and N and a small amount of W, Mo and Nb, has high temperature abrasion resistance performance, is a welding wire material with high silicon content, can be used at the temperature of above 800 DEG C and saves the cost.
Description
Technical field
The present invention relates to a kind of high-temperature wearable welding material that uses under the high temperature environment of power plant or steel stove, especially a kind of high-temperature wearable welding wire that is used for more than 800 ℃ belongs to welding field.
Background technology
In industries such as electric power, metallurgy, steel stove, welding is a kind of main mode that steel construction is made, occupy quite high ratio,, improve constantly the requirement of environment for use material and welding material at heat resisting steel field technology content along with the update of all trades and professions product.Which type of performance welding wire has, and is directly connected to whole welded combination property and safety, as mechanical property, resistance to elevated temperatures, creep-resistant property and welding technological properties etc.
Adopt several chrome-molybdenum steel welding wires in the national standard, advantage applied widely is arranged, but it is not remarkable specific area Use Limitation fruit, at being used for chrome-molybdenum steel when welding in the steel construction manufacturing of power station, the resistance to elevated temperatures parameter is not ideal enough, is difficult to reduce the embrittlement phenomenon of weld metal in the long-term use of power station equipment.
In existing high-temperature wearable welding material, no matter be that cobalt-based, Ni-based and iron-based have all adopted 20 ~ 30% chromium and carbon to add 3 ~ 15% niobium, tungsten, molybdenum and boron element, this kind material is relatively more expensive, causes welding wire with high costs so that fail to popularize.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of high-temperature wearable welding wire that is used for more than 800 ℃ is provided, have wear resistance at elevated temperature, and saved cost.
According to technical scheme provided by the invention, the described high-temperature wearable welding wire that is used for more than 800 ℃, it is characterized in that: the chemical composition of described welding wire comprises C:2 ~ 6%, Mn:1 ~ 3%, Si:1 ~ 6%, Cr:26 ~ 35%, N:0.05 ~ 0.6%, surplus is Fe and unavoidable impurities element, unit mass percentage.
A part that replaces Fe, the chemical composition of described welding wire also comprise one or more the element in Mo:0 ~ 3%, W:0 ~ 3%, Nb:0 ~ 3%; Unit mass percentage.
The content of the middle Si element of described welding wire is 1.2 ~ 1.4%; Unit mass percentage.
The content of the middle Si element of described welding wire is 4.5 ~ 5%; Unit mass percentage.
The content of the middle Si element of described welding wire is 5 ~ 6%; Unit mass percentage.
The content of the middle N element of described welding wire is 0.05 ~ 0.1%; Unit mass percentage.
The content of the middle N element of described welding wire is 0.1 ~ 0.15%; Unit mass percentage.
The content of the middle N element of described welding wire is 0.15 ~ 0.2%; Unit mass percentage.
The high-temperature wearable welding wire that is used for more than 800 ℃ of the present invention has utilized the characteristics of Si element, adopted a large amount of silicon and nitrogen and a spot of tungsten, molybdenum, niobium to be solidificated in the austenitic stainless steel that high temperature uses, has wear resistance at elevated temperature, it is a kind of solder wire material of high silicon content, can under the environment more than 800 ℃, use, and save cost.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.
In the present invention, the content of C element is 2 ~ 6%, and C is the element with the effect that improves weld metal intensity;
Si is the element with deoxidation, and Si can form the Si oxide-film, and improves the activity of C in the solder wire material, thus the effect with the metal strength of increasing substantially;
The content of Mn element is 1 ~ 3%, and Mn has the effect of the material fragility when suppressing hot-working that impurity S causes;
The content of Cr element is 26 ~ 35%, and Cr has the effect that combines with C and delay the carburized layer growth under the environment for use of high temperature;
The N element has the effect of the activity that improves C.
The chemical element of the welding wire of each embodiment is formed as shown in table 1.
Table 1(unit: the mass percent of element, %)
| Embodiment | C | Mn | Si | Cr | N | Nb | W | Mo | Fe |
| Embodiment one | 2 | 1 | 1.2 | 26 | 0.05 | - | - | - | Surplus |
| Embodiment two | 3 | 2 | 1.4 | 27 | 0.1 | - | 1 | - | Surplus |
| Embodiment three | 4 | 1.5 | 1.3 | 28 | 0.06 | 2 | 2 | 2 | Surplus |
| Embodiment four | 5 | 2.5 | 4.5 | 29 | 0.08 | 1.2 | 1.2 | 1.2 | Surplus |
| Embodiment five | 2.5 | 1.2 | 5 | 30 | 0.15 | 2.4 | 2.4 | 2.4 | Surplus |
| Embodiment six | 3.5 | 2.2 | 4.8 | 32 | 0.2 | 0.6 | 0.06 | 0.08 | Surplus |
| Embodiment seven | 4.5 | 1.6 | 6 | 33 | 0.6 | 0.02 | 0.02 | 0.01 | Surplus |
| Embodiment eight | 5.5 | 2.6 | 5.5 | 34 | 0.12 | 0.2 | 0.1 | 0.3 | Surplus |
| Embodiment nine | 6 | 3 | 1 | 35 | 0.16 | 3 | 3 | 3 | Surplus |
Solder wire material of the present invention is as shown in table 2 in the hardness under the different temperatures through the coating material that thermal spraying forms.
Table 2(unit: HV)
| Embodiment | 600℃ | 700℃ | 800℃ |
| Embodiment one | 610 | 440 | 240 |
| Embodiment two | 600 | 450 | 245 |
| Embodiment three | 605 | 445 | 244 |
| Embodiment four | 610 | 446 | 250 |
| Embodiment five | 600 | 450 | 240 |
| Embodiment six | 610 | 430 | 243 |
| Embodiment seven | 600 | 435 | 244 |
| Embodiment eight | 610 | 450 | 255 |
| Embodiment nine | 600 | 455 | 240 |
Welding wire of the present invention is controlled smelting to chemical analysis, makes wire rod to smelting good Rolling from Ingot, heat-treats, drawing, parcel medicine core again, finally obtains the welding wire finished product.
Welding wire of the present invention performance in the application of power station equipment or high-temperature steel stove all is significantly improved, and is to use under 800 ℃ temperature on the one hand; N in the material discharges in the mode of gas when high temperature uses on the other hand, has lubricated effect, makes material have wear-resisting performance.The high-temperature wearable welding wire that is used for more than 800 ℃ of the present invention has utilized the characteristics of Si element, adopted a large amount of silicon and nitrogen and a spot of tungsten, molybdenum, niobium to be solidificated in the austenitic stainless steel that high temperature uses, has wear resistance at elevated temperature, it is a kind of solder wire material of high silicon content, can under the environment more than 800 ℃, use, and save cost.
Claims (8)
1. high-temperature wearable welding wire that is used for more than 800 ℃, it is characterized in that: the chemical composition of described welding wire comprises C:2 ~ 6%, Mn:1 ~ 3%, Si:1 ~ 6%, Cr:26 ~ 35%, N:0.05 ~ 0.6%, surplus is Fe and unavoidable impurities element, unit mass percentage.
2. the high-temperature wearable welding wire that is used for more than 800 ℃ as claimed in claim 1 is characterized in that: the chemical composition of described welding wire also comprises one or more the element in Mo:0 ~ 3%, W:0 ~ 3%, Nb:0 ~ 3%; Unit mass percentage.
3. the high-temperature wearable welding wire that is used for more than 800 ℃ as claimed in claim 1 is characterized in that: the content of the middle Si element of described welding wire is 1.2 ~ 1.4%; Unit mass percentage.
4. the high-temperature wearable welding wire that is used for more than 800 ℃ as claimed in claim 1 is characterized in that: the content of the middle Si element of described welding wire is 4.5 ~ 5%; Unit mass percentage.
5. the high-temperature wearable welding wire that is used for more than 800 ℃ as claimed in claim 1 is characterized in that: the content of the middle Si element of described welding wire is 5 ~ 6%; Unit mass percentage.
6. the high-temperature wearable welding wire that is used for more than 800 ℃ as claimed in claim 1 is characterized in that: the content of the middle N element of described welding wire is 0.05 ~ 0.1%; Unit mass percentage.
7. the high-temperature wearable welding wire that is used for more than 800 ℃ as claimed in claim 1 is characterized in that: the content of the middle N element of described welding wire is 0.1 ~ 0.15%; Unit mass percentage.
8. the high-temperature wearable welding wire that is used for more than 800 ℃ as claimed in claim 1 is characterized in that: the content of the middle N element of described welding wire is 0.15 ~ 0.2%; Unit mass percentage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102217692A CN102275050A (en) | 2011-08-04 | 2011-08-04 | High temperature abrasion resistance welding wire used at temperature of over 800 DEG C |
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| CN2011102217692A CN102275050A (en) | 2011-08-04 | 2011-08-04 | High temperature abrasion resistance welding wire used at temperature of over 800 DEG C |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117780A (en) * | 2013-04-27 | 2014-10-29 | 中国石油天然气股份有限公司 | Repairing process of chromium-molybdenum steel tube bundle and tube plate |
| CN112872651A (en) * | 2021-01-26 | 2021-06-01 | 华能国际电力股份有限公司 | Flux core, preparation method of flux core, flux-cored wire and welding method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5893594A (en) * | 1981-11-27 | 1983-06-03 | Sumitomo Metal Ind Ltd | Welding wire used for welding of ferritic stainless steel |
| CN1490122A (en) * | 2002-09-20 | 2004-04-21 | ������������ʽ���� | Solder wire and welding method thereby |
| CN101190481A (en) * | 2006-11-27 | 2008-06-04 | 攀枝花学院 | Deposit welding rod containing rare earth and production method |
| CN101288926A (en) * | 2007-04-20 | 2008-10-22 | 宝山钢铁股份有限公司 | Ferritic stainless steel wire rods for welding wire, welding wire and manufacturing method and application thereof |
-
2011
- 2011-08-04 CN CN2011102217692A patent/CN102275050A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5893594A (en) * | 1981-11-27 | 1983-06-03 | Sumitomo Metal Ind Ltd | Welding wire used for welding of ferritic stainless steel |
| CN1490122A (en) * | 2002-09-20 | 2004-04-21 | ������������ʽ���� | Solder wire and welding method thereby |
| CN101190481A (en) * | 2006-11-27 | 2008-06-04 | 攀枝花学院 | Deposit welding rod containing rare earth and production method |
| CN101288926A (en) * | 2007-04-20 | 2008-10-22 | 宝山钢铁股份有限公司 | Ferritic stainless steel wire rods for welding wire, welding wire and manufacturing method and application thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117780A (en) * | 2013-04-27 | 2014-10-29 | 中国石油天然气股份有限公司 | Repairing process of chromium-molybdenum steel tube bundle and tube plate |
| CN104117780B (en) * | 2013-04-27 | 2016-10-19 | 中国石油天然气股份有限公司 | A kind of chrome-molybdenum steel tube bank and tube sheet maintenance process |
| CN112872651A (en) * | 2021-01-26 | 2021-06-01 | 华能国际电力股份有限公司 | Flux core, preparation method of flux core, flux-cored wire and welding method |
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