CN110438415A - A kind of mine screen net stainless steel wire and its manufacturing method - Google Patents
A kind of mine screen net stainless steel wire and its manufacturing method Download PDFInfo
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- CN110438415A CN110438415A CN201910792376.3A CN201910792376A CN110438415A CN 110438415 A CN110438415 A CN 110438415A CN 201910792376 A CN201910792376 A CN 201910792376A CN 110438415 A CN110438415 A CN 110438415A
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- stainless steel
- steel wire
- screen net
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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
-
- 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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
- C25F1/06—Iron or steel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The present invention provides a kind of mine screen net stainless steel wire and its manufacturing method, belongs to stainless steel wire preparation technical field.The stainless steel wire is made of the alloying element of weight percent below: C≤0.10%, Si≤1.00%, Mn 4.00-8.00%, P≤0.050%, S≤0.05%, Cr 18.00-20.00%, Ni 2.00-3.50%, Cu >=1.5%, Mo≤0.3%, N≤0.3%, balance iron and inevitable impurity.When manufacturing the stainless steel wire, the hot rolling disk of precursor circle is subjected to multi pass drawing first, pickling, washing, preheating furnace drying carries out annealing heat-treatment in heating zone, and the heating of multistage region is with temperature needed for meeting technique.During heat treatment, constantly it is passed through ammonia.The mine screen net stainless steel wire that the present invention manufactures, surface-brightening, appearance zero defect, tensile strength is good, extends, corrosion-resistant；Its mechanical property are as follows: tensile strength 680-800MPa, elongation percentage 45-50%, hardness HV:200-250.
Description
Technical field
The present invention relates to stainless steel wire preparation technical field, a kind of mine screen net stainless steel wire and its manufacturer are particularly related to
Method.
Background technique
Currently, mine coal preparation technique is continuously improved, cleaning unit gradually develops to enlarged direction, in the market
Demand to efficient, high reliability preparation equipment is growing.The matching used centrifuge of Chinese large-sized centrifuge, vibrating screen
Basket and vibrating screen mesh belong to rapid wear accessory, and when work bears the serious impact of ore, water, and service life is limited, need through
Often replacement.
For mine screen net as one of most common component of dressing sieve, the material used in the past is mainly 202B, 808B martensite
Stainless steel and 304 austenitic stainless steels.For a long time, because of 304 unit prices height, 202B, 808B poor corrosion resistance operating condition are not
Stablize, the factors such as the service life is short result in the raising of cost.Therefore, in the manufacturing process of mine screen net to the selection of raw material and
The determination of technology has strict requirements.
Replace original several stainless steels as mine screen net with not using QN1803/304D austenitic stainless steel in the present invention
Become rusty steel wire, belongs to the starting high nitrogen in the whole world, high anti-corrosion, low-nickel austenitic stainless steel product, " D " is indicated can in most application field
Intensity, the hardness of material are improved on the basis of guaranteeing corrosion resistance comparable with S30400 stainless steel instead of S30400,
Material cost is reduced simultaneously, ingredient design feature: high nitrogen (2000ppm), Gao Ge (18%) and high-copper (1.5%).
Therefore, the longevity can be efficiently solved as mine screen net stainless steel wire using QN1803/304D austenitic stainless steel
Order problem short, at high cost.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of mine screen net stainless steel wire and its manufacturing methods.
The stainless steel wire by weight percentage, contains following ingredient: C≤0.10%, Si≤1.00%, Mn4.00-
8.00%, P≤0.050%, S≤0.05%, Cr 18.00-20.00%, Ni 2.00-3.50%, Cu >=1.5%, Mo≤
0.3%, N≤0.3%, balance iron and inevitable impurity.
The method for manufacturing the mine screen net stainless steel wire, comprises the following steps that
(1) with the QN1803/304D stainless steel wire tray circle of φ 5.5mm for raw material；
(2) drawing of 3-5 passage, pulling finished goods specification are carried out to raw material；
(3) with sulfuric acid electrolyte, to treated in step (2), stainless steel wire carries out pickling；
(4) stainless steel wire after pickling is washed；
(5) drying and processing is carried out to the stainless steel wire after washing in step (4) with preheating furnace；
(6) the annealed furnace of stainless steel wire after drying is annealed；
(7) stainless steel wire after annealing is cooling, it coils, pack to obtain finished product.
Wherein, drawing amount is in 10-30% per pass in step (2), and drawing amount is successively reduced per pass.
The concentration of sulfuric acid electrolyte is 15%-20% in step (3).
Drying temperature is 300 DEG C -400 DEG C in step (5).
Divide 6-8 temperature region in step (6) in annealing furnace, the every segment length 0.8-1.5m of temperature region, temperature is 1050 DEG C-
1090 DEG C, temperature region is interior to be passed through ammonia simultaneously, and ammonia resolves into hydrogen and nitrogen mixed gas, to prevent in annealing process
Oxidation.
In step (5) and step (6) in cabling, Trace speed 12-15m/min.
The advantageous effects of the above technical solutions of the present invention are as follows:
The stainless steel wire, surface-brightening, appearance zero defect, tensile strength is good, extends, corrosion-resistant.Its mechanical property are as follows:
Tensile strength 680-800MPa, elongation percentage 45-50%, hardness HV:200-250.The stainless steel wire of preparation is being processed into mine screen net
Afterwards, mine screen net product can have preferable intensity, toughness and corrosion resistance, and performance is better than national current standard and the big portion in market
Divide properties of product.
Detailed description of the invention
Fig. 1 is mine screen net stainless steel wire manufacturing approach craft flow chart of the invention；
Fig. 2 is the transverse and longitudinal metallographic structure of 304D stainless steel steel wire φ 3.0mm in the embodiment of the present invention, wherein (a) is cross
To (b) for longitudinally.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention provides a kind of mine screen net stainless steel wire and its manufacturing method.
The stainless steel wire by weight percentage, contains following ingredient: C≤0.10%, Si≤1.00%, Mn4.00-
8.00%, P≤0.050%, S≤0.05%, Cr 18.00-20.00%, Ni 2.00-3.50%, Cu >=1.5%, Mo≤
0.3%, N≤0.3%, balance iron and inevitable impurity.
As shown in Figure 1, the method for manufacturing the mine screen net stainless steel wire, comprises the following steps that
(1) with the QN1803/304D stainless steel wire tray circle of φ 5.5mm for raw material；
(2) drawing of 3-5 passage, pulling finished goods specification are carried out to raw material；
(3) with sulfuric acid electrolyte, to treated in step (2), stainless steel wire carries out pickling；
(4) stainless steel wire after pickling is washed；
(5) drying and processing is carried out to the stainless steel wire after washing in step (4) with preheating furnace；
(6) the annealed furnace of stainless steel wire after drying is annealed；
(7) stainless steel wire after annealing is cooling, it coils, pack to obtain finished product.
It is explained combined with specific embodiments below.
A kind of stainless steel wire, the stainless steel wire are made of the alloying element of weight percent below: C0.077%, Si
0.413%, Mn 7.03%, P 0.034%, Cr 18.32%, Ni 2.89%, Cu 1.84%, Mo 0.08%, N
0.242%, balance iron and inevitable impurity.
The manufacturing method of the stainless steel wire, comprising the following steps:
(1) with the QN1803/304D stainless steel wire tray circle of φ 5.5mm for raw material；
(2) 3 passage drawings, pulling finished goods specification are carried out to raw material.First time drawing is drawn to φ by φ 5.5mm
4.0mm, the draft of drawing are 27.3%；Second of drawing is drawn to φ 3.0mm or so by φ 4.0mm or so, and drawing subtracts
Face rate is 25.0%；Third time drawing is drawn to φ 2.5mm or so by φ 3.0mm or so, and the draft of drawing is 16.7%.；
(3) pickling is carried out to stainless steel wire with sulfuric acid electrolyte, its concentration of pickling sulfuric acid electrolyte is 20%；
(4) stainless steel wire after pickling is washed；
(5) drying and processing is carried out to stainless steel wire with preheating furnace, preheating furnace is about 1m, and drying temperature is 350 DEG C, walks linear speed
Degree is 14m/min；
(6) the annealed furnace of stainless steel wire after drying is annealed, point 6 temperature regions, humidity province in the annealing furnace
Domain every segment length about 1m, temperature is respectively 3 sections 1070 DEG C and 2 sections 1080 DEG C, while being passed through ammonia, ammonia decompose to annealing process into
Row protection, Trace speed 14m/min；
(7) stainless steel wire after annealing is cooling, it coils, pack to obtain finished product.
Tables 1 and 2 is mechanics performance comparison under 304D and 808B chemical component and same specification.
1 304D of table and 808B chemical component comparison (%)
| Steel grade | C | Si | Mn | P | Cr | Ni | Cu | Mo | N |
| 304D | 0.077 | 0.413 | 7.03 | 0.034 | 18.32 | 2.89 | 1.84 | 0.08 | 0.242 |
| 808B | 0.119 | 0.372 | 12.39 | 0.032 | 15.24 | 1.27 | 1.64 | 0.06 | 0.252 |
2 304D of table and mechanics performance comparison under 808B same specification (φ 3.0mm)
| Steel grade | Tensile strength/MPa | Elongation percentage/% | The contraction percentage of area/% | Hardness/HV |
| 304D | 830 | 50.0 | 71.0 | 0.034 |
| 808B | 796 | 48.2 | 77.0 | 246 |
As shown in Fig. 2, being the transverse and longitudinal metallographic structure of 304D stainless steel steel wire φ 3.0mm prepared by the present invention.
The mine screen net stainless steel wire that the present invention manufactures, surface-brightening, appearance zero defect, tensile strength is good, extends
Good, high temperature resistant is corrosion-resistant.Its mechanical property are as follows: tensile strength 796MPa, elongation percentage 48.2%, hardness HV:246.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of mine screen net stainless steel wire, it is characterised in that: by weight percentage, contain following ingredient: C≤0.10%,
Si≤1.00%, Mn 4.00-8.00%, P≤0.050%, S≤0.05%, Cr18.00-20.00%, Ni 2.00-
3.50%, Cu >=1.5%, Mo≤0.3%, N≤0.3%, balance iron and inevitable impurity.
2. the method for mine screen net stainless steel wire described in manufacturing claims 1, it is characterised in that: comprise the following steps that
(1) with the QN1803/304D stainless steel wire tray circle of φ 5.5mm for raw material；
(2) drawing of 3-5 passage, pulling finished goods specification are carried out to raw material；
(3) with sulfuric acid electrolyte, to treated in step (2), stainless steel wire carries out pickling；
(4) stainless steel wire after pickling is washed；
(5) drying and processing is carried out to the stainless steel wire after washing in step (4) with preheating furnace；
(6) the annealed furnace of stainless steel wire after drying is annealed；
(7) stainless steel wire after annealing is cooling, it coils, pack to obtain finished product.
3. the manufacturing method of mine screen net stainless steel wire according to claim 2, it is characterised in that: in the step (2)
Drawing amount is in 10-30% per pass, and drawing amount is successively reduced per pass.
4. the manufacturing method of mine screen net stainless steel wire according to claim 2, it is characterised in that: in the step (3)
The concentration of sulfuric acid electrolyte is 15%-20%.
5. the manufacturing method of mine screen net stainless steel wire according to claim 2, it is characterised in that: in the step (5)
Drying temperature is 300 DEG C -400 DEG C.
6. the manufacturing method of mine screen net stainless steel wire according to claim 2, it is characterised in that: in the step (6)
Divide 6-8 temperature region, the every segment length 0.8-1.5m of temperature region in annealing furnace, temperature is 1050 DEG C -1090 DEG C, in temperature region
It is passed through ammonia simultaneously, ammonia resolves into hydrogen and nitrogen mixed gas, to prevent the oxidation in annealing process.
7. the manufacturing method of mine screen net stainless steel wire according to claim 2, it is characterised in that: the step (5) and
In step (6) in cabling, Trace speed 12-15m/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910792376.3A CN110438415A (en) | 2019-08-26 | 2019-08-26 | A kind of mine screen net stainless steel wire and its manufacturing method |
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| CN201910792376.3A CN110438415A (en) | 2019-08-26 | 2019-08-26 | A kind of mine screen net stainless steel wire and its manufacturing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923414A (en) * | 2019-12-26 | 2020-03-27 | 江苏英杰光缆科技有限公司 | Heat treatment process for optical cable |
| CN113953337A (en) * | 2020-07-21 | 2022-01-21 | 郑太芸 | Manufacturing method of novel anti-static flexible steel wire of invisible protective net |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177649A (en) * | 1996-09-20 | 1998-04-01 | 陈显灵 | Method for making stainless-steel wire |
| JP2018171640A (en) * | 2017-03-31 | 2018-11-08 | 新日鐵住金ステンレス株式会社 | Two-phase stainless steel wire material for weld rod and two-phase stainless steel wire for weld rod |
| CN109207852A (en) * | 2018-09-29 | 2019-01-15 | 江阴祥瑞不锈钢精线有限公司 | A kind of high temperature mesh belt stainless steel wire and its manufacturing method |
-
2019
- 2019-08-26 CN CN201910792376.3A patent/CN110438415A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177649A (en) * | 1996-09-20 | 1998-04-01 | 陈显灵 | Method for making stainless-steel wire |
| JP2018171640A (en) * | 2017-03-31 | 2018-11-08 | 新日鐵住金ステンレス株式会社 | Two-phase stainless steel wire material for weld rod and two-phase stainless steel wire for weld rod |
| CN109207852A (en) * | 2018-09-29 | 2019-01-15 | 江阴祥瑞不锈钢精线有限公司 | A kind of high temperature mesh belt stainless steel wire and its manufacturing method |
Non-Patent Citations (2)
| Title |
|---|
| 我的钢铁不锈钢网: "相聚福安 青拓集团不锈钢线材QN1803/304D用户交流会顺利召开", 《搜狐网》 * |
| 青拓集团有限公司: "不锈钢热轧钢板和钢带", 《青拓集团有限公司企业标准》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923414A (en) * | 2019-12-26 | 2020-03-27 | 江苏英杰光缆科技有限公司 | Heat treatment process for optical cable |
| CN110923414B (en) * | 2019-12-26 | 2021-07-23 | 江苏英杰光缆科技有限公司 | Heat treatment process for optical cable |
| CN113953337A (en) * | 2020-07-21 | 2022-01-21 | 郑太芸 | Manufacturing method of novel anti-static flexible steel wire of invisible protective net |
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Application publication date: 20191112 |