CN106834967B - A kind of formula of stainless steel and preparation method thereof being exclusively used in cable pulley of crane - Google Patents
A kind of formula of stainless steel and preparation method thereof being exclusively used in cable pulley of crane Download PDFInfo
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- CN106834967B CN106834967B CN201710073230.4A CN201710073230A CN106834967B CN 106834967 B CN106834967 B CN 106834967B CN 201710073230 A CN201710073230 A CN 201710073230A CN 106834967 B CN106834967 B CN 106834967B
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- stainless steel
- crane
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- cable pulley
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- 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
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
-
- 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
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- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- 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
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a kind of formulas of stainless steel and preparation method thereof for being exclusively used in cable pulley of crane, and by mass percentage, a kind of formula for the stainless steel being exclusively used in cable pulley of crane is composed of the following components: C :≤0.02%；Si :≤0.75%；Mn :≤0.05%；S :≤0.01%；P :≤0.02%；Cr:21.00-23.00%；Ni:8.00-9.50%；Cu:0.30-0.45%；N :≤0.03%；Ti :≤0.04%；Surplus is Fe and inevitable impurity；2C≤Ti, having the effect of, which reduces cable pulley of crane, gets rusty possibility.
Description
Technical field
The present invention relates to crane facility, in particular to the formula of a kind of stainless steel for being exclusively used in cable pulley of crane and
Preparation method.
Background technique
Cable on crane is typically all to be carried by cable coaster and driven to walk.Cable coaster is exposed
, throughout the year by rain erosion, the bearing of cable coaster idler wheel gets rusty easily, so that cable coaster idler wheel is not able to rotate in orbit
But hard friction, hale pull firmly in the case where, cause cable coaster to be drawn and collapse or the case where cable falls off.It is in the prior art
It solves the problems, such as this, generally uses stainless steel for the cable coaster of material, to reduce a possibility that getting rusty.
Application publication number is CN103131961A, and data of publication of application is that the Chinese patent on June 5th, 2013 discloses one kind
Corrosion-resistant stainless steel plate and the preparation method and application thereof, composed of the following components: C :≤0.020%, Si :≤0.80%, Mn:
≤ 1.00%, S :≤0.010%, P :≤0.030%, Cr:19.50-20.50%, Ni:17.50-18.50%, Mo:6.50-
7.00%, Cu:0.50-1.00%, N:0.22-0.30%, Re:0.10-0.15%, surplus Fe.
The rustless property and corrosion resistance of stainless steel are the formation due to oxidation film (passivating film) chromium-rich on its surface, this stainless
Property and corrosion resistance are opposite.Studies have shown that stainless steel, in the weak medium such as big gas and water, corrosion resistance is with chromium water content in steel
Increase and improve, when chromium content reaches certain percentage, the corrosion resistance of steel mutates, i.e., from easily getting rusty to being not easy to give birth to
Rust, it is never anti-corrosion to corrosion-resistant.Therefore, still there is certain risk of getting rusty in long-term exposed cable coaster in the environment.
Summary of the invention
The first object of the present invention is to provide a kind of formula of stainless steel for being exclusively used in cable pulley of crane, which solve
The problem of existing cable pulley of crane gets rusty, having the effect of, which reduces cable pulley of crane, gets rusty possibility.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of formula for the stainless steel being exclusively used in cable pulley of crane, which is characterized in that by mass percentage, by with
The following group is grouped as:
C :≤0.02%；
Si :≤0.75%；
Mn :≤0.05%；
S :≤0.01%；
P :≤0.02%；
Cr:21.00-23.00%；
Ni:8.00-9.50%；
Cu:0.30-0.45%；
N :≤0.03%；
Ti :≤0.04%；
Surplus is Fe and inevitable impurity；
2C≤Ti (refers to that 2 parts of carbon content is less than or equal to Ti content).
The study found that when the application stainless steel formula in C, Si, Mn, S, P, N, Ti too high levels or Cr, Ni,
When Cu is too high or too low, corrosion rate is a greater impact, and controls that corrosion rate can be obtained within the above range is low not
Become rusty steel, and its mechanical property is relatively preferable；
In addition, under study for action it has also been found that formula A and formula B are optimum formula:
Wherein, it is formulated A: by mass percentage, composed of the following components:
C:0.01%；
Si:0.35%；
Mn:0.03%；
S:0.01%；
P:0.01%；
Cr:22.00%；
Ni:9.00%；
Cu:0.40%；
N:0.02%；
Ti:0.02%；
Fe:68.15%.
It is formulated B: by mass percentage, composed of the following components:
C:0.01%；
Si:0.40%；
Mn:0.04%；
S:0.01%；
P:0.01%；
Cr:23.00%；
Ni:8.00%；
Cu:0.35%；
N:0.02%；
Ti:0.03%；
Fe:68.13%.
The second object of the present invention is to provide a kind of preparation method of stainless steel for being exclusively used in cable pulley of crane.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of preparation method for the stainless steel being exclusively used in cable pulley of crane is exclusively used in lifting electromechanics with described one kind
The formula of the stainless steel of cable coaster is former material, and by former material cold rolling, then solution treatment, the temperature of solution treatment is 1050~1075
DEG C, solution time is 5~15min.
Further preferably are as follows: the temperature of the solution treatment is 1075 DEG C, solution time 15min.
In conclusion the invention has the following advantages:
1, exposed in acidic environment or when being immersed in acid solution, the corrosion rate of the stainless steel of the application is slow, has preferable
Corrosion resistance；
2, the stainless steel stretched intensity of the application, yield strength and elongation percentage are relatively large, are suitable for crane cable
Coaster.
Detailed description of the invention
Fig. 1 is the crane cable being prepared with a kind of stainless steel for being exclusively used in cable pulley of crane of embodiment 5
Pulley structure schematic diagram.
In figure: 1, pulley yoke；2, fixed frame；3, positioning plate；4, rubber slab；5, arc panel；6, pulley；7, mounting ring.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the protection scope of invention.
Embodiment 1: a kind of stainless steel being exclusively used in cable pulley of crane is prepared: by the following method to match as follows
Side is former material, and by former material cold rolling, then solution treatment, the temperature of solution treatment is 1075 DEG C, solution time 15min；It is matched
Side is (by weight percentage):
C:0.01%；
Si:0.35%；
Mn:0.03%；
S:0.01%；
P:0.01%；
Cr:22.00%；
Ni:9.00%；
Cu:0.40%；
N:0.02%；
Ti:0.02%；
Fe:68.15%.
Embodiment 2: a kind of stainless steel being exclusively used in cable pulley of crane, difference from example 1 is that, match
Side is (by weight percentage):
C:0.01%；
Si:0.40%；
Mn:0.04%；
S:0.01%；
P:0.01%；
Cr:23.00%；
Ni:8.00%；
Cu:0.35%；
N:0.02%；
Ti:0.03%；
Fe:68.13%.
Embodiment 3: a kind of stainless steel being exclusively used in cable pulley of crane, difference from example 1 is that, match
Side is (by weight percentage):
C:0.02%；
Si:0.75%；
Mn:0.05%；
S:0.01%；
P:0.02%；
Cr:21.00%；
Ni:9.50%；
Cu:0.45%；
N:0.03%；
Ti:0.04%；
Fe:67.59%.
Embodiment 4: a kind of stainless steel being exclusively used in cable pulley of crane, the difference from embodiment 1 is that, preparation side
Method are as follows: by former material cold rolling, then solution treatment, the temperature of solution treatment is 1050 DEG C, solution time 5min.
Embodiment 5: a kind of stainless steel being exclusively used in cable pulley of crane, the difference from embodiment 1 is that, preparation side
Method are as follows: by former material cold rolling, then solution treatment, the temperature of solution treatment is 1100 DEG C, solution time 30min.
Embodiment 6: a kind of stainless steel being exclusively used in cable pulley of crane, the difference from embodiment 1 is that, preparation side
Method are as follows: by former material cold rolling, then solution treatment, the temperature of solution treatment is 1000 DEG C, solution time 2min.
Performance characterization test
1, control sample
Control sample 1: the difference from embodiment 1 is that, formula is (by weight percentage):
C:0.03%；
Si:0.80%；
Mn:0.05%；
S:0.01%；
P:0.02%；
Cr:23.50%；
Ni:10.00%；
Cu:0.30%；
N:0.03%；
Ti:0.07%；
Fe:64.83%.
Control sample 2: the difference from embodiment 1 is that, formula is (by weight percentage):
C:0.02%；
Si:0.70%；
Mn:0.06%；
S:0.02%；
P:0.02%；
Cr:20.00%；
Ni:7.00%；
Cu:0.21%；
N:0.04%；
Ti:0.05%；
Fe:71.88%.
2, the corrosion rate test of acid volatilization gas
(1) test sample: embodiment 1-6 and control sample 1-2.
(2) test content: being processed into 2cm × 2cm × 2cm block for test sample, then place it in 25 DEG C and
It is placed in the drier of the hydrochloric acid solution of various concentration, test sample and acid solution not directly contact and acid solution can evaporate into when placement
In test sample.Note: the concentration of the dry body product of difference and its interior acid solution is identical.
(3) test result: as shown in table 1.Table 1 shows that, compared to for control sample, embodiment 1-6 is in various concentration
Corrosion rate in hydrochloric acid solution is relatively slow.
The corrosion rate test result statistics of the acid volatilization gas of table 1
3, the corrosion rate test in acid solution
(1) test sample: embodiment 1-6 and control sample 1-2.
(2) test content: being processed into 2cm × 2cm × 2cm block for test sample, then place it in 25 DEG C and
It is placed in the drier of the hydrochloric acid solution of various concentration, test sample is directly immersed in acid solution when placement.
(3) test result: as shown in table 2.Table 2 shows, compared to for control sample, embodiment 1-6 in hydrochloric acid solution or
Corrosion rate in sulfuric acid solution or its mixed liquor is relatively slow.
Corrosion rate test result statistics in 2 acid solution of table
4, Mechanics Performance Testing
(1) test sample: embodiment 1-6 and control sample 1-2.
(2) its tensile strength, yield strength and elongation percentage test content: will be tested by national standard.
(3) test result: as shown in table 3.Table 3 shows, compared to for control sample, embodiment 1-6 tensile strength,
Yield strength and elongation percentage are relatively large.
3 mechanical experimental results of table statistics
Claims (4)
1. a kind of stainless steel for being exclusively used in cable pulley of crane, which is characterized in that by mass percentage, by following components group
At:
C:0.01-0.02%；
Si:0.35-0.75%；
Mn:0.03-0.05%；
S :≤0.01%；
P :≤0.02%；
Cr:21.00-23.00%；
Ni:8.00-9.50%；
Cu:0.35-0.45%；
N:0.02-0.03%；
Ti:0.02-0.04%；
Surplus is Fe and inevitable impurity；
2C≤Ti；
Using said components as former material by former material cold rolling, then solution treatment, the temperature of solution treatment is 1050~1075 DEG C, Gu
The molten time is 5~15min.
2. a kind of stainless steel for being exclusively used in cable pulley of crane according to claim 1, which is characterized in that press quality hundred
Divide than meter, composed of the following components:
C:0.01%；
Si:0.35%；
Mn:0.03%；
S:0.01%；
P:0.01%；
Cr:22.00%；
Ni:9.00%；
Cu:0.40%；
N:0.02%；
Ti:0.02%；
Fe:68.15%.
3. a kind of stainless steel for being exclusively used in cable pulley of crane according to claim 1, which is characterized in that press quality hundred
Divide than meter, composed of the following components:
C:0.01%；
Si:0.40%；
Mn:0.04%；
S:0.01%；
P:0.01%；
Cr:23.00%；
Ni:8.00%；
Cu:0.35%；
N:0.02%；
Ti:0.03%；
Fe:68.13%.
4. a kind of stainless steel for being exclusively used in cable pulley of crane according to claim 3, which is characterized in that the solid solution
The temperature of processing is 1075 DEG C, solution time 15min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710073230.4A CN106834967B (en) | 2017-02-10 | 2017-02-10 | A kind of formula of stainless steel and preparation method thereof being exclusively used in cable pulley of crane |
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| CN201710073230.4A CN106834967B (en) | 2017-02-10 | 2017-02-10 | A kind of formula of stainless steel and preparation method thereof being exclusively used in cable pulley of crane |
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| CN106834967B true CN106834967B (en) | 2019-02-12 |
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| CN111334714B (en) * | 2020-04-16 | 2021-11-26 | 浙江志达管业有限公司 | Ultralow-temperature stainless steel pipe fitting material and preparation method thereof |
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| JP2003221660A (en) * | 2002-01-31 | 2003-08-08 | Nisshin Steel Co Ltd | Fuel tank for vehicle made from hot-dip aluminized stainless steel sheet |
| JP2005256021A (en) * | 2004-03-09 | 2005-09-22 | Jfe Steel Kk | Austenitic stainless steel sheet for reflecting mirror |
| JP4285303B2 (en) * | 2004-03-31 | 2009-06-24 | 住友金属工業株式会社 | Continuously variable transmission belt and stainless cold-rolled steel sheet therefor |
| CN101220443B (en) * | 2008-01-22 | 2010-12-08 | 江苏长盈不锈钢管有限公司 | Stainless steel weldless steel tube for ship and producing technique |
| CN103131961B (en) * | 2013-03-08 | 2015-09-09 | 宣达实业集团有限公司 | A kind of corrosion-resistant stainless steel plate and preparation method thereof and application |
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