CN101524797A - Dedicated welding wire of a 70kg high-strength steel plate for mining machinery use only - Google Patents
Dedicated welding wire of a 70kg high-strength steel plate for mining machinery use only Download PDFInfo
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- CN101524797A CN101524797A CN200910074147A CN200910074147A CN101524797A CN 101524797 A CN101524797 A CN 101524797A CN 200910074147 A CN200910074147 A CN 200910074147A CN 200910074147 A CN200910074147 A CN 200910074147A CN 101524797 A CN101524797 A CN 101524797A
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- welding wire
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Abstract
The invention belongs to the technical field of welding wires and discloses the dedicated welding wire of a 70kg high-strength steel plate for mining machinery use only. The technical scheme of the invention is as follows: the welding wire comprises the following elements by the weight percentage: 0.06wt% to 0.12wt% of carbon, 0.40wt% to 1.00wt% of silicone, 1.40wt% to 2.10wt% of manganese, 0.10wt% to 1.00wt% of chromium, 0.02wt% to 0.20wt% of titanium, 0.002wt% to 0.006wt% of boron, 0.03wt% to 0.06wt% of vanadium, less than or equal to 0.025wt% of sulfur, less than or equal to 0.025wt% of phosphorus, the balance of iron and the inevitable impurities of the welding wire. According to the tests, the tensile strength of welding Q550 and Q620 steel plates respectively is between 730MPa and 740MPa in the presence of carbon dioxide as the protective gas, and the tensile strength of welding Q550 and Q620 steel plates together is higher than 760MPa, and the welding wire has the advantage of high welding strength.
Description
Technical field
The invention belongs to the welding wire technology field, relate in particular to the special-purpose 70 kilograms of high-strength steel plate special-purpose welding sticks of a kind of coal mine machinery.
Background technology
Coal mine machinery adopts Q550, Q620 or the welding of Q550+Q620 steel plate more, the welding wire welding that currently used welding welding wire is the ER69-3 model.But utilize this welding wire to make protection gas welding Q550, Q620 or Q550+Q620 steel plate at carbon dioxide, the tensile strength of its soldered can only reach 660Mpa, exists the low shortcoming of intensity; In addition, owing to comprised composition respectively at metal molybdenum and the nickel of 0.3-0.6%, 0.4-0.8% in the welding wire of ER69-3 model, increased the use cost of welding wire.
Summary of the invention
Purpose of the present invention, just providing and being specifically designed to welding Q550, Q620 or Q550+Q620 steel plate is the special-purpose 70 kilograms of high-strength steel plate special-purpose welding sticks of coal mine machinery.
The technical scheme that realizes the object of the invention is:
The special-purpose 70 kilograms of high-strength steel plate special-purpose welding sticks of coal mine machinery, element by following percentage by weight: carbon C:0.06-0.15, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, chromium Cr:0.10-1.00, titanium Ti:0.02-0.20, boron: 0.002-0.006, vanadium V:0.03-0.06, sulphur S≤0.025, phosphorus P≤0.025, surplus are that iron and unavoidable impurities thereof constitute.
In addition, constitute the copper that contains in the described welding wire less than 0.50%.
The special-purpose 70 kilograms of high-strength steel plate special-purpose welding sticks of coal mine machinery provided by the present invention have the following advantages: one, through experiment, utilize carbon dioxide as protective gas respectively to the tensile strength of welding between the Q550 and between the Q620 between 730-740Mpa, tensile strength to Q550 and Q620 welding then reaches more than the 760Mpa, therefore has the high advantage of weld strength; Its two owing to constitute in this welding wire, do not contain valuable metal molybdenum and nickel, production cost per ton reduces more than more than 4000 yuan than common alternative welding wire.
The specific embodiment
Embodiment 1
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.09, Si:1.00, Mn:1.80, Cr:0.40, Ti:0.15, B:0.005, V:0.05, surplus is the iron and the inevitable impurity of the no more than iron composition 0.01 percent of its content thereof.
Embodiment 2
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.06, Si:0.50, Mn:1.90, Cr:0.50, Ti:0.02, B:0.002, V:0.03, surplus is the iron and the inevitable impurity of the no more than iron composition 0.40 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.5.
Embodiment 3
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.90, Mn:2.10, Cr:1.00, Ti:0.08, B:0.003, V:0.04, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
Embodiment 4
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.12, Si:0.40, Mn:1.40, Cr:0.30, Ti:0.10, B:0.004, V:0.06, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.5.
Embodiment 5
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.005 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.08, Si:0.80, Mn:1.60, Cr:0.60, Ti:0.05, B:0.006, V:0.05, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
Embodiment 6
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.15, Si:0.60, Mn:1.70, Cr:0.10, Ti:0.20, B:0.004, V:0.03, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.4.
Claims (2)
1, special-purpose 70 kilograms of high-strength steel plate special-purpose welding sticks of coal mine machinery, it is characterized in that: by the element of following percentage by weight: carbon C:0.06-0.15, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, chromium Cr:0.10-1.00, titanium Ti:0.02-0.20, boron: 0.002-0.006, vanadium V:0.03-0.06, sulphur S≤0.025, phosphorus P≤0.025, surplus are that iron and unavoidable impurities thereof constitute.
2, the special-purpose 70 kilograms of high-strength steel plate special-purpose welding sticks of coal mine machinery according to claim 1 is characterized in that: constitute the copper that contains in the described welding wire less than 0.50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910074147A CN101524797A (en) | 2009-04-13 | 2009-04-13 | Dedicated welding wire of a 70kg high-strength steel plate for mining machinery use only |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910074147A CN101524797A (en) | 2009-04-13 | 2009-04-13 | Dedicated welding wire of a 70kg high-strength steel plate for mining machinery use only |
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| Publication Number | Publication Date |
|---|---|
| CN101524797A true CN101524797A (en) | 2009-09-09 |
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| CN200910074147A Pending CN101524797A (en) | 2009-04-13 | 2009-04-13 | Dedicated welding wire of a 70kg high-strength steel plate for mining machinery use only |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069321A (en) * | 2011-01-10 | 2011-05-25 | 武汉铁锚焊接材料股份有限公司 | Low-cost gas shielded welding wire for 60 kilogram grade steel |
| CN102873465A (en) * | 2012-06-30 | 2013-01-16 | 山东索力得焊材有限公司 | 700MPa low-alloy high-strength welding wire for heavy machinery and use method thereof |
| CN103495815A (en) * | 2013-09-30 | 2014-01-08 | 中联重科股份有限公司 | Welding material, application thereof and welding method thereof |
| CN103692108A (en) * | 2013-12-19 | 2014-04-02 | 唐山鸿鹏焊业有限公司 | Boron contained alloy steel welding wires and production process thereof |
| CN105081604A (en) * | 2015-05-26 | 2015-11-25 | 山东索力得焊材股份有限公司 | 700 MPa high-toughness and high-strength automatic submerged arc welding wire and use method |
| CN105458550A (en) * | 2015-12-28 | 2016-04-06 | 武汉铁锚焊接材料股份有限公司 | Gas protection welding wire for ocean engineering |
| CN111571060A (en) * | 2020-04-23 | 2020-08-25 | 武汉铁锚焊接材料股份有限公司 | Special 70 kg-level high-strength high-toughness gas-shielded solid welding wire for coal machine industry |
-
2009
- 2009-04-13 CN CN200910074147A patent/CN101524797A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069321A (en) * | 2011-01-10 | 2011-05-25 | 武汉铁锚焊接材料股份有限公司 | Low-cost gas shielded welding wire for 60 kilogram grade steel |
| CN102069321B (en) * | 2011-01-10 | 2012-07-25 | 武汉铁锚焊接材料股份有限公司 | Low-cost gas shielded welding wire for 60 kilogram grade steel |
| CN102873465A (en) * | 2012-06-30 | 2013-01-16 | 山东索力得焊材有限公司 | 700MPa low-alloy high-strength welding wire for heavy machinery and use method thereof |
| CN102873465B (en) * | 2012-06-30 | 2014-11-26 | 山东索力得焊材股份有限公司 | 700MPa low-alloy high-strength welding wire for heavy machinery and use method thereof |
| CN103495815A (en) * | 2013-09-30 | 2014-01-08 | 中联重科股份有限公司 | Welding material, application thereof and welding method thereof |
| CN103495815B (en) * | 2013-09-30 | 2015-10-28 | 中联重科股份有限公司 | Welding material, its application and welding method |
| CN103692108A (en) * | 2013-12-19 | 2014-04-02 | 唐山鸿鹏焊业有限公司 | Boron contained alloy steel welding wires and production process thereof |
| CN103692108B (en) * | 2013-12-19 | 2015-10-07 | 唐山鸿鹏焊业有限公司 | A kind of production technology of boron-containing alloy steel welding wire |
| CN105081604A (en) * | 2015-05-26 | 2015-11-25 | 山东索力得焊材股份有限公司 | 700 MPa high-toughness and high-strength automatic submerged arc welding wire and use method |
| CN105458550A (en) * | 2015-12-28 | 2016-04-06 | 武汉铁锚焊接材料股份有限公司 | Gas protection welding wire for ocean engineering |
| CN111571060A (en) * | 2020-04-23 | 2020-08-25 | 武汉铁锚焊接材料股份有限公司 | Special 70 kg-level high-strength high-toughness gas-shielded solid welding wire for coal machine industry |
| CN111571060B (en) * | 2020-04-23 | 2022-04-22 | 武汉铁锚焊接材料股份有限公司 | Special 70 kg-level high-strength high-toughness gas-shielded solid welding wire for coal machine industry |
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Open date: 20090909 |