CN110373523A - A kind of 90 feather weight steel for welding wire heat treatment softening method - Google Patents
A kind of 90 feather weight steel for welding wire heat treatment softening method Download PDFInfo
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- CN110373523A CN110373523A CN201910640747.6A CN201910640747A CN110373523A CN 110373523 A CN110373523 A CN 110373523A CN 201910640747 A CN201910640747 A CN 201910640747A CN 110373523 A CN110373523 A CN 110373523A
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- Prior art keywords
- welding wire
- steel
- cooling
- softening method
- heat
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention discloses a kind of 90 feather weight steel for welding wire to be heat-treated softening method, and this method mainly comprises the steps that heating, heat preservation and cooling.Cooling process: steel are cooled to 380 DEG C or less with the cooling velocity of≤0.04 DEG C/s when cooling.High-strength welding wire steel chemical composition weight percent suitable for the method are as follows: C:0.07~0.11, Si:0.40~0.60, Mn:1.60~1.90, Ni:2.10~2.50, Mo:0.55~0.75, Cr:0.35~0.50, Ti:0.05~0.1, remaining is Fe and inevitable impurity element.Present invention process is simple, and bating effect is good, after treatment by using the treatment method tensile strength≤620 MPa, elongation after fracture >=34%, the contraction percentage of area >=72%.
Description
Technical field
The invention belongs to metallurgical method fields, and in particular to a kind of 90 feather weight steel for welding wire heat treatment softening method.
Background technique
With the development of mechanical equipment lightweight and high-strength steel, the demand to high-strength welding wire steel is also increasing.It is high-strength
Welding wire is to be formed by gren rod through drawing.Since high-strength welding wire contains a large amount of alloying elements, so that the gren rod after rolling
Containing a large amount of non-equilibrium microstructures, intensity is higher, carrys out larger difficulty to pull-out belt.In addition, wire rod can also produce after multi pass drawing
Raw biggish processing hardening, intensity sharply increase, and come to subsequent pull-out belt difficult.Therefore, the present invention is in view of the above-mentioned problems, exploitation
A kind of heat treatment softening method of 90 feather weight steel for welding wire.
Summary of the invention
Present invention seek to address that method problem be to provide a kind of 90 feather weight steel for welding wire heat treatment softening method.
For realization foregoing invention, following scheme is taken:
A kind of 90 feather weight steel for welding wire heat treatment softening method, the chemical component weight percentage of the steel for welding wire are as follows: C:
0.07~0.11%, Si:0.40~0.60%, Mn:1.60~1.90%, Ni:2.10~2.50%, Mo:0.55~0.75%, Cr:
0.35~0.50%, Ti:0.05~0.1%, remaining is Fe and inevitable impurity element；
Softening method includes following process: heating, heat preservation and cooling；Cooling process: by steel with≤0.04 DEG C/s's when cooling
Cooling velocity is cooled to 380 DEG C or less.
Further, the heating process: the steel for welding wire is put into and is added in furnace, is then heated to 860 DEG C -895
℃。
Further, the heat preservation process: heating process is kept the temperature after being heated to 860 DEG C -895 DEG C, and soaking time is by material
Material grill thoroughly after i.e. material internal and external temperature it is uniform after soaking time, for 10-30 min.
Further, the cooling process: when cooling by steel with the cooling velocity of≤0.04 DEG C/s be cooled to 380 DEG C with
Under, being subsequently cooled to tapping temperature can come out of the stove, and cooling rate and tapping temperature are unlimited.To improve production efficiency, quickening cooling can be adopted
Speed or higher temperature are come out of the stove.
Further, 875 DEG C -890 DEG C the heating process: are heated to.
Further, steel for welding wire tensile strength≤620 MPa after thermally treated soft annealing, elongation after fracture >=34%,
The contraction percentage of area >=72%.
Beneficial effect using above method scheme is:
The present invention tests in conjunction with experimental analysis by thermodynamics of alloys and dynamics calculation, determines alloy transformation temperature area
Between and phase driving force, final design go out a kind of heat treatment softening method, treated that material property effect is good and steady for this method
It is fixed, and can significantly shorten heat treatment time, improve production efficiency.
Specific embodiment
The present invention will be further described in detail combined with specific embodiments below.
The sample of selection is the gren rod of 5.5 mm of diameter, and each embodiment intercepts one section therein respectively, embodiment
The chemical component of middle sample is as shown in table 1.
1 embodiment chemical component (weight percent) of table
Experiment uses shaft furnace, and furnace temperature rises to default heating temperature from room temperature, and the heating-up time is 1.5 h, keeps the temperature 20min hub disk
Internal and external temperature is uniform, and preset temperature is cooled to after warm, is then cooled to 100 DEG C fastly and comes out of the stove, specific process parameter and performance
As shown in table 2.
2 embodiment technological parameter of table and performance
Above embodiments are only to illustrate the method scheme being not intended to limit the present invention, although referring to above-described embodiment to the present invention into
Detailed description is gone, the commonsense method personnel of this field are it is understood that can still modify to the present invention or equally replace
It changes, without departing from the spirit or scope of the invention, or any substitutions, should all cover and be wanted in right of the invention
It asks in range.
Claims (6)
1. a kind of 90 feather weight steel for welding wire are heat-treated softening method, which is characterized in that the chemical component weight of the steel for welding wire
Measure percentage are as follows: C:0.07~0.11%, Si:0.40~0.60%, Mn:1.60~1.90%, Ni:2.10~2.50%, Mo:0.55
~0.75%, Cr:0.35~0.50%, Ti:0.05~0.1%, remaining is Fe and inevitable impurity element；
Softening method includes following process: heating, heat preservation and cooling；Cooling process: by steel with≤0.04 DEG C/s's when cooling
Cooling velocity is cooled to 380 DEG C or less.
2. a kind of 90 feather weight steel for welding wire are heat-treated softening method according to claim 1, which is characterized in that the heating
Process: the steel for welding wire is put into and is added in furnace, is then heated to 860 DEG C -895 DEG C.
3. a kind of 90 feather weight steel for welding wire are heat-treated softening method according to claim 1, which is characterized in that the heat preservation
Process: heating process is kept the temperature after being heated to 860 DEG C -895 DEG C, and soaking time is that i.e. material internal and external temperature is uniform after grilling thoroughly material
Soaking time afterwards is 10-30 min.
4. a kind of 90 feather weight steel for welding wire are heat-treated softening method according to claim 1, which is characterized in that the cooling
Process: steel are cooled to 380 DEG C hereinafter, being subsequently cooled to tapping temperature with the cooling velocity of≤0.04 DEG C/s when cooling
It comes out of the stove, cooling rate and tapping temperature are unlimited.
5. a kind of 90 feather weight steel for welding wire are heat-treated softening method according to claim 2, which is characterized in that the heating
Process: 875 DEG C -890 DEG C are heated to.
6. any one of -5 a kind of 90 feather weight steel for welding wire heat treatment softening method according to claim 1, which is characterized in that
Steel for welding wire tensile strength≤620 MPa, elongation after fracture >=34%, the contraction percentage of area >=72% after thermally treated soft annealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910640747.6A CN110373523B (en) | 2019-07-16 | 2019-07-16 | Heat treatment softening method for steel for 90 kg-grade welding wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910640747.6A CN110373523B (en) | 2019-07-16 | 2019-07-16 | Heat treatment softening method for steel for 90 kg-grade welding wire |
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| Publication Number | Publication Date |
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| CN110373523A true CN110373523A (en) | 2019-10-25 |
| CN110373523B CN110373523B (en) | 2021-05-11 |
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| CN201910640747.6A Active CN110373523B (en) | 2019-07-16 | 2019-07-16 | Heat treatment softening method for steel for 90 kg-grade welding wire |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112080696A (en) * | 2020-09-07 | 2020-12-15 | 鞍钢股份有限公司 | Wire rod with excellent low-temperature toughness for 90 kg-grade welding wire and manufacturing method thereof |
| CN115125441A (en) * | 2022-06-16 | 2022-09-30 | 江苏永钢集团有限公司 | Steel for gas shielded welding wire and heat treatment softening method thereof |
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| CN108866445A (en) * | 2018-07-26 | 2018-11-23 | 青岛特殊钢铁有限公司 | A kind of steel wire for welding and its production technology |
| CN109161658A (en) * | 2018-10-09 | 2019-01-08 | 江阴兴澄特种钢铁有限公司 | A kind of mainshaft bearing of wind-driven generator steel and its production method |
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| JPH08155678A (en) * | 1994-12-06 | 1996-06-18 | Daido Steel Co Ltd | Manufacture of welding wire |
| CN1347781A (en) * | 2000-10-06 | 2002-05-08 | 川崎制铁株式会社 | Submerged-arc welding point, producing method of the same welding point, and used solder wire and flux |
| CN1962161A (en) * | 2005-11-07 | 2007-05-16 | 株式会社神户制钢所 | Cored wire for gas protective arc welding for high tensile strength steel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112080696A (en) * | 2020-09-07 | 2020-12-15 | 鞍钢股份有限公司 | Wire rod with excellent low-temperature toughness for 90 kg-grade welding wire and manufacturing method thereof |
| CN112080696B (en) * | 2020-09-07 | 2022-03-22 | 鞍钢股份有限公司 | Wire rod with excellent low-temperature toughness for 90 kg-grade welding wire and manufacturing method thereof |
| CN115125441A (en) * | 2022-06-16 | 2022-09-30 | 江苏永钢集团有限公司 | Steel for gas shielded welding wire and heat treatment softening method thereof |
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| CN110373523B (en) | 2021-05-11 |
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