CN104328269A - Online thermal treatment, acid pickling and phosphating process of medium and high-carbon superfine steel wire for rope making - Google Patents
Online thermal treatment, acid pickling and phosphating process of medium and high-carbon superfine steel wire for rope making Download PDFInfo
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- CN104328269A CN104328269A CN201410675128.8A CN201410675128A CN104328269A CN 104328269 A CN104328269 A CN 104328269A CN 201410675128 A CN201410675128 A CN 201410675128A CN 104328269 A CN104328269 A CN 104328269A
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- steel wire
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- rope making
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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
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses an online thermal treatment, acid pickling and phosphating process of a medium and high-carbon superfine steel wire for rope making. The process is suitable for the production of the products which have diameters of phi 0.8-1.3mm and which are of types of high-quality carbon structural steel 45#, SWRH47A and SWRH62A and high-quality carbon structural steel 65# and SWRH72A on a same production line, and is capable of reducing the energy consumption and the consumption of the main accessories in the production process. In a steel wire heating step, a four-stage heating manner is used and the furnace temperature is respectively set to be 900 DEG C, 885 DEG C, 870 DEG C and 855 DEG C; in a lead pan isothermal cooling step, the lead temperature is set to be 565 DEG C, and the DV value is 63mm.m/min; and in the phosphating process, the phosphating temperature is 85+/-5 DEG C, the total acidity is 80-90, the free acidity is 12-16 and the acid ratio is 5-8. Through setting the optimal acid pickling and phosphating process parameters, the obtained product steel wire for rope making is capable of obtaining favorable mechanical property after undergoing drawing, and meanwhile, the energy consumption is reduced and the production cost is reduced.
Description
Technical field
The present invention relates to metallurgical technology field, the specification particularly relating to a kind of rope making steel wire is φ 0.8-1.3mm, and steel grade is the medium high carbon ultra-fine specification rope making steel wire burning optimization on line acid washing phosphorization technique of carbon constructional quality steel 45# steel, SWRH47A, SWRH62A, carbon constructional quality steel 65# steel, SWRH 72A.
Background technology
Rope making thermal treatment phosphating steel wire is reproduced goods steel wires, make the wireline of a fixed structure and specification through operations such as drawing, twisting, conjunction ropes, therefore the quality of rope making thermal treatment phosphating steel wire inner quality and alramenting quality directly affects the quality of rear process quality and wireline finished product.
In recent years, along with the continuous progress of technology, the burning optimization on line acid washing phosphorization that the production technique that thermal treatment and acid washing phosphorization process combine effectively achieves rope making thermal treatment phosphating steel wire is produced.
Although the production of rope making steel wire adopts burning optimization on line acid washing phosphorization technique to improve production efficiency, the control of relative thermal treatment, the process matching between pickling and bonderizing and processing parameter becomes relative difficulty.In theory, the product of different steel grade, different size should adopt different processing condition to realize.But, because the capacity of equipment of enterprise is limited, a production line needs the production realizing plurality of specifications, various steels product.Therefore, how to realize the control of thermal treatment, process matching between pickling and bonderizing and processing parameter, thus under the prerequisite of stabilized product quality, make different size, the product of different steel grade produces on same production line, simultaneously, reduce the consumption of major auxiliary burden in energy consumption and production process, to reduce production cost, thus make product have quality and price advantage is the current urgent problem of enterprise simultaneously.
Summary of the invention
The object of the invention is the technological deficiency for existing in prior art, and to provide one to be applicable to specification be φ 0.8-1.3mm, steel grade is carbon constructional quality steel 45#, SWRH47A, the product of SWRH62A, carbon constructional quality steel 65#, SWRH 72A is produced on same production line, meanwhile, the burning optimization on line acid washing phosphorization technique of the medium high carbon ultra-fine specification rope making steel wire of the consumption of major auxiliary burden in energy consumption and production process can be reduced.
The technical scheme adopted for realizing object of the present invention is:
A kind of medium high carbon ultra-fine specification rope making steel wire burning optimization on line acid washing phosphorization technique, comprise the steps: unwrapping wire → steel wire heating+lead pan isothermal cooling → cold wash → hydrochloric acid-washing rust-removing → bis-washing → hot water wash → phosphatization → bis-washing → saponification → oven dry → take-up, the specification of described steel wire is φ 0.8-1.3mm, and steel grade is carbon constructional quality steel 45# steel, SWRH47A, SWRH62A, carbon constructional quality steel 65# steel, SWRH 72A; In described steel wire heating step, adopt four-part form heating, furnace temperature is set as 900 DEG C, 885 DEG C, 870 DEG C and 855 DEG C respectively, and the lead temperature in described lead pan isothermal cooling step is set as 565 DEG C; DV value is 63mmm/min; In phosphating process: phosphatization temperature 85 ± 5 DEG C, total acidity 80-90, free acidity 12-16,5-8 is compared in acid.
In described acid cleaning process, concentration of hydrochloric acid is 17-21%, Fe
2+concentration≤110g/L, temperature is 40 ± 10 DEG C.
Diameter is the steel wire of φ 0.90mm, and pickling time is 17.1s, and phosphating time is 21.4s, and the speed of a motor vehicle is 70m/min; Diameter is φ 1.10mm steel wire, and pickling time is 21.0s, and phosphating time is 26.2s, and the speed of a motor vehicle is 57.3m/min; Diameter is φ 1.30mm steel wire, and pickling time is 24.8s, and phosphating time is 31.0s, and the speed of a motor vehicle is 48.5m/min.
Compared with prior art, the invention has the beneficial effects as follows:
1, steel wire burning optimization on line acid washing phosphorization technique of the present invention is by thermal treatment, the control of processing parameter between pickling and bonderizing, same production line achieves the production of different size, different steel grade product, under the prerequisite of stabilized product quality, improve DV value (DV value is the product of the speed of a motor vehicle and specification), thus improve production efficiency, production capacity obtains release, and production capacity improves 24.81%, achieves the maximization of capacity of equipment.
2, steel wire burning optimization on line acid washing phosphorization technique of the present invention is by reasonably determining processing condition, thus structural state best after acquisition thermal treatment, after lower operation drawing, good mechanical property can be obtained, and obtain good surface quality, improve the over-all properties of wireline product.
3, steel wire burning optimization on line acid washing phosphorization technique of the present invention is by after raising DV value, processing parameter in production process is adjusted accordingly, determine rational processing condition, make the gas consumption in production process reduce 9.01%, lead loss reduces 13.87%, and hydrochloric acid consumption reduces 6.66%, Phosphating Solution consumption reduces 9.37%, greatly reduce production cost, thus make product have quality and price advantage simultaneously, improve the competitive power of product.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
It is φ 0.8-1.3mm that medium high carbon of the present invention ultra-fine specification rope making steel wire burning optimization on line acid washing phosphorization technique is applicable to specification, steel grade is the product of carbon constructional quality steel 45# steel, SWRH47A, SWRH62A, carbon constructional quality steel 65# steel, SWRH 72A, and the massfraction of each steel grade carbon content is as shown in table 1.
Each steel grade carbon content % (massfraction) table 1
| 45# | 47A | 62A | 65# | 72A |
| 0.455～0.487 | 0.470～0.499 | 0.619～0.659 | 0.635～0.697 | 0.731～0.752 |
Medium high carbon of the present invention ultra-fine specification rope making steel wire burning optimization on line acid washing phosphorization technique comprises the steps: unwrapping wire → steel wire heating+lead pan isothermal cooling → cold wash → hydrochloric acid-washing rust-removing → bis-washing → hot water wash → phosphatization → bis-washing → saponification → oven dry → take-up, wherein, improve thermal treatment process, hydrochloric acid-washing rust-removing and phosphating process, all the other techniques are same as the prior art.Specifically be improved to: in described steel wire heating step, adopt four-part form heating, furnace temperature is set as 900 DEG C, 885 DEG C, 870 DEG C and 855 DEG C respectively, and the lead temperature in described lead pan isothermal cooling step is set as 565 DEG C; DV value is 63mmm/min; Phosphating process is: phosphatization temperature 85 ± 5 DEG C, and total acidity 80-90, free acidity 12-16,5-8 is compared in acid.In order to products obtained therefrom performance is better, in described hydrochloric acid-washing rust-removing technique, concentration of hydrochloric acid is 17-21%, Fe
2+concentration≤110g/L, temperature is 40 ± 10 DEG C.
DV value is the product of the speed of a motor vehicle and specification, and be the steel wire of φ 0.90mm for diameter, pickling time is 17.1s, and phosphating time is 21.4s, speed of a motor vehicle 70m/min; Diameter is φ 1.10mm steel wire, and pickling time is 21.0s, and phosphating time is 26.2s, speed of a motor vehicle 57.3m/min; Diameter is φ 1.30mm steel wire, and pickling time is 24.8s, and phosphating time is 31.0s, speed of a motor vehicle 48.5m/min.
Adopt the performance test of method products obtained therefrom of the present invention as shown in table 2-table 12.
65# steel heat treatment phosphating steel wire mechanical property test data sheet 2
65# steel heat treatment phosphating steel wire mechanical property test data sheet 3
65# steel heat treatment phosphating steel wire mechanical property part test data sheet 4
62A steel heat treatment phosphating steel wire mechanical property test data sheet 5
72A steel heat treatment phosphating steel wire mechanical property test data sheet 6
Each specification steel grade thermal treatment phosphating steel wire metallographic structure Examined table 7
| Steel grade/specification | Batch number | Tissue content |
| 65#/0.90 | R65757 | 99% sorbite+1% (ferrite+perlite) |
| 65#/1.10 | A65788 | 99% sorbite+1% (ferrite+perlite) |
| 65#/1.30 | A65788 | 99% sorbite+1% (ferrite+perlite) |
| 62A/1.24 | B62784 | 99% sorbite+1% (ferrite+perlite) |
| 72A/1.25 | A72778 | 99% sorbite+1% (ferrite+perlite) |
Performance and metallographic structure comparison sheet 8 before and after improving technique parameter
S in metallographic structure row in table 8 represents sorbite, and F represents ferrite, and P represents perlite.
Thermal treatment phosphating steel wire metallographic structure part test data sheet 9
Performance and metallographic structure comparison sheet 10 before and after improving technique
The thermal treatment phosphating steel wire obtained has excellent surface quality, follow the tracks of lower operation wire drawing to produce, in LH4/300+8/250+SG/400 straight drawing machine drawing 10 to 12 passage, in LZ9/400+SG/500 straight drawing machine drawing 8 passage, drawing speed all reaches more than 10m/s, and drawing is smooth, there is not the impacts such as fracture of wire and produce and quality problems occur, achieve the object of high speed drawing.
Thermal treatment phosphating steel wire after process modification, after drawing, has carried out performance test with the product of common process, and its intensity more close to central value, and can meet the condition of intensity, and the toughness of steel wire is significantly improved.
Rope making wire behavior pattern table 11
The contrast table 12 of production capacity and various consumption before and after improving technique
Can be found out by the data of table 2-table 12, technique of the present invention is by formulating best thermal treatment process, thus best structural state and mechanical property after obtaining thermal treatment; By formulating best pickling, phosphating process parameters, mainly comprise: concentration of hydrochloric acid, iron protochloride Fe
2+the parameter such as total acidity, free acidity, acid ratio of content, phosphatization temperature, Phosphating Solution, obtains good surface quality; The rope making reproduced goods steel wire obtained after improving technique, after lower operation drawing, can obtain good mechanical property.Simultaneously, related assays is carried out to comprehensive energy consumption, while improving the quality of products, reduce energy consumption, reduce production cost, production capacity improves 24.81%, gas consumption reduces 9.01%, and lead loss reduces 13.87%, and hydrochloric acid consumption reduces 6.66%, Phosphating Solution consumption reduces 9.37%, greatly reduces production cost.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a medium high carbon ultra-fine specification rope making steel wire burning optimization on line acid washing phosphorization technique, comprise the steps: unwrapping wire → steel wire heating+lead pan isothermal cooling → cold wash → hydrochloric acid-washing rust-removing → bis-washing → hot water wash → phosphatization → bis-washing → saponification → oven dry → take-up, it is characterized in that, the specification of described rope making steel wire is φ 0.8-1.3mm, and steel grade is carbon constructional quality steel 45# steel, SWRH47A, SWRH62A, carbon constructional quality steel 65# steel, SWRH 72A; Adopt four-part form to heat in described steel wire heating step, furnace temperature is set as 900 DEG C, 885 DEG C, 870 DEG C and 855 DEG C respectively, and the lead temperature in described lead pan isothermal cooling step is set as 565 DEG C; DV value is 63mmm/min; In phosphating process: phosphatization temperature 85 ± 5 DEG C, total acidity 80-90, free acidity 12-16,5-8 is compared in acid.
2. medium high carbon according to claim 1 ultra-fine specification rope making steel wire burning optimization on line acid washing phosphorization technique, is characterized in that, in described acid cleaning process, concentration of hydrochloric acid is 17-21%, Fe
2+concentration≤110g/L, temperature is 40 ± 10 DEG C.
3. medium high carbon according to claim 2 ultra-fine specification rope making steel wire burning optimization on line acid washing phosphorization technique, it is characterized in that, diameter is the steel wire of φ 0.90mm, and pickling time is 17.1s, and phosphating time is 21.4s, and the speed of a motor vehicle is 70m/min; Diameter is φ 1.10mm steel wire, and pickling time is 21.0s, and phosphating time is 26.2s, and the speed of a motor vehicle is 57.3m/min; Diameter is φ 1.30mm steel wire, and pickling time is 24.8s, and phosphating time is 31.0s, and the speed of a motor vehicle is 48.5m/min.
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| CN201410675128.8A CN104328269A (en) | 2014-11-21 | 2014-11-21 | Online thermal treatment, acid pickling and phosphating process of medium and high-carbon superfine steel wire for rope making |
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| CN201410675128.8A CN104328269A (en) | 2014-11-21 | 2014-11-21 | Online thermal treatment, acid pickling and phosphating process of medium and high-carbon superfine steel wire for rope making |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862717A (en) * | 2015-05-08 | 2015-08-26 | 青岛锻艺金属有限公司 | Closed internal acid washing process |
| CN109666930A (en) * | 2019-01-09 | 2019-04-23 | 程郎 | A kind of efficient surface treatment process for steel wire |
| CN111020553A (en) * | 2019-12-23 | 2020-04-17 | 盐城市联鑫钢铁有限公司 | Surface treatment method of hot-rolled ribbed steel bar |
| CN112296116A (en) * | 2020-09-17 | 2021-02-02 | 江苏华久辐条制造有限公司 | Manufacturing process of high-strength spoke |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255279A (en) * | 2013-05-20 | 2013-08-21 | 天津高盛钢丝绳有限公司 | Heat treatment process of steel wire |
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- 2014-11-21 CN CN201410675128.8A patent/CN104328269A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255279A (en) * | 2013-05-20 | 2013-08-21 | 天津高盛钢丝绳有限公司 | Heat treatment process of steel wire |
Non-Patent Citations (1)
| Title |
|---|
| 李长健: ""热处理钢丝在线酸洗磷化工艺"", 《全国金属制品信息网第2届年3会论文集》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862717A (en) * | 2015-05-08 | 2015-08-26 | 青岛锻艺金属有限公司 | Closed internal acid washing process |
| CN109666930A (en) * | 2019-01-09 | 2019-04-23 | 程郎 | A kind of efficient surface treatment process for steel wire |
| CN109666930B (en) * | 2019-01-09 | 2020-12-11 | 安徽省卓创信息科技服务有限公司 | High-efficiency steel wire surface treatment process |
| CN111020553A (en) * | 2019-12-23 | 2020-04-17 | 盐城市联鑫钢铁有限公司 | Surface treatment method of hot-rolled ribbed steel bar |
| CN112296116A (en) * | 2020-09-17 | 2021-02-02 | 江苏华久辐条制造有限公司 | Manufacturing process of high-strength spoke |
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Application publication date: 20150204 |