CN103495613A - Production process and drawing equipment of phi-5.0mm 1960MPa super-strength steel wires - Google Patents
Production process and drawing equipment of phi-5.0mm 1960MPa super-strength steel wires Download PDFInfo
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- CN103495613A CN103495613A CN201310480612.0A CN201310480612A CN103495613A CN 103495613 A CN103495613 A CN 103495613A CN 201310480612 A CN201310480612 A CN 201310480612A CN 103495613 A CN103495613 A CN 103495613A
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Abstract
Disclosed are a production process and drawing equipment of phi-5.0mm 1960MPa super-strength steel wires. The production process includes: selecting materials, treating the surface, drawing, and performing stress tempering. A phi-16mm 82B special wire rod with satisfactory chemical components and mechanical properties is selected first; oxide scale on the surface of the wire rod is cleared by means of tunnel pickling; the surface of the cleared wire rod is subjected to phosphorization and boronizing; the special wire rod is subjected to reducing drawing to obtain diameter of a finished product, and the steel wire is subjected to stress tempering. The steel wire is drawn with a phi-1270 large-sized straight-feed drawing machine comprising an intelligent process recognition system and a pressure water-cooling die box; accordingly, the technical production problem that the phi-5.0mm steel wires of 1960MPa and above cannot be produced, and the needs of national key engineering constructions for super-strength wire ropes are met.
Description
Technical field
The present invention relates to a kind of Φ 5.0mm 1960MPa extra-high strength wire manufacturing process and drawing equipment thereof, belong to the metal cord processing technique field.
Background technology
China's marine resources are abundant, along with the increasing of country to marine resources exploitation dynamics, Marine Engineering Steel silk rope demand increases, require steel wire rope to there is extraordinarily thick, speciality and special construction, and thering is Extra High Strength, extra-high-speed toughness, the property such as corrosion-resistant, the development and production of Marine Engineering Steel silk rope become current very urgent problem.At present, the Marine Engineering Steel silk rope maximum gauge needed reaches 210mm, required steel wire diameter reaches 5.0mm, tensile strength reaches 1960MPa, according to data of literatures, report, can the production steel wire diameter reach 5.0mm at present, its tensile strength is up to 1870 MPa, existing heat treatment, the equipment such as drawing and production Technology all can not realize the manufacturing of Φ 5.0mm 1960MPa extra-high strength wire, particularly to meet the high toughness plasticity energy requirement of this intensity level steel wire, crooked >=8 times, reverse >=12 times, percentage elongation >=4.0%, more without possibility, this also becomes the bottleneck problem that restriction China ocean engineering is built.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, a kind of Φ 5.0mm 1960MPa extra-high strength wire manufacturing process and drawing equipment thereof are provided, realize the high toughness plasticity steel wire of major diameter superhigh intensity (steel wire diameter be greater than Φ 5.0mm, tensile strength higher than 1960MPa crooked >=8 times, reverse >=12 times, percentage elongation >=4.0%) the manufacturing, meet the national large-scale construction project such as ocean engineering with steel wire rope the demand to the major diameter extra-high strength wire.
The technological process of Φ 5.0mm 1960MPa extra-high strength wire manufacturing process of the present invention is: raw material selection → surface treatment → wire drawing → destressing temper.
Processing step of the present invention is: select the satisfactory φ 16mm of chemical composition and mechanical property, the special-purpose wire rod of 82B, remove the iron scale on wire rod surface by adopting tunnel type pickling mode, then phosphatization and boronation processing are carried out in the wire rod surface after cleaning, by being greater than 90% superelevation total draught and employing, " the first passage is less again, the second passage maximum, pull out passage reduces later successively " Partial shrinkage rate distribution method, special-purpose wire rod is implemented to tube reducing and be drawn to the finished diameter specification, again steel wire is carried out to the processing of destressing temper, eliminate steel wire stress, further improve the steel wire combination property, finally carry out product inspection.
The present invention is because total draught is greater than 90%, belong to the super-pressure shrinkage, " the first passage is less in Partial shrinkage rate design employing, the second passage maximum, later drawing passes reduces successively " the Partial shrinkage rate distribution method of broken line type, designing the less reason of the first passage Partial shrinkage rate is the rule circle in order to ensure wire rod, there is ovality usually in the wire rod provided because of raw material producer, diameter deviation and blemish, if adopt the drawing of major part compression ratio, easy scratch steel wire, by adopting the drawing of the first passage smaller portions compression ratio, overcome this technical problem, in drawing, can not cause steel wire to be pulled, guaranteed the rule circle of steel wire diameter, be conducive to the follow-up drawing of steel wire, improve obdurability and the surface quality of steel wire.
Wire drawing of the present invention is to carry out having on the Φ 1270 large-scale intelligent straight drawing machines of process intelligent recognition system and pressure water-cooled diaphragm capsule, guarantee to meet product tensile strength and toughness reguirements, effectively overcome the weak point of prior art processes, solved and can not produce at present the more production technology difficult problem of high-tensile steel wires of Φ 5.0mm 1960MPa and larger diameter, realize the production of large specification extra-high strength wire, met the demand of key state project construction to the extra high strength steel wire rope.
Realize that drawing equipment of the present invention is Φ 1270 large-scale intelligent straight drawing machines, this equipment mainly consists of actinobacillus device, workbench, motor, deceleration device, reel and take-up, crucial is that this equipment also is provided with pressure water-cooled diaphragm capsule in the place ahead of the inlet wire of each reel, this pressure water-cooled diaphragm capsule has the current of pressure refrigerating function, the heat that steel wire drawing is produced can be cooling in time, cooling effect significantly improves than existing drawing equipment, cooling effect is better, and after common drawing, wire temperature is lower than 100 ℃.
Drawing equipment of the present invention is also with the drawing process intelligent identifying system, and described drawing process intelligent identifying system is realized by PLC Programming program, and is kept in data module.Steel wire is in drawing process, if because of the wearing and tearing of wire drawing die or the reasons such as slip of reel, the speed caused is not mated, by the drawing process intelligent identifying system, automatically regulate the speeds match of each drawing reel drum, guaranteed the smooth drawing of steel wire orthoscopic, the steel wire of drawing does not produce torsion, has guaranteed the toughness plasticity energy of steel wire.
Φ 1270 large-scale intelligent straight drawing machines of the present invention, because wire drawing machine has Forced water cooling pressure water-cooled diaphragm capsule and drawing process intelligent identifying system, its drawn steel wire quality significantly is better than existing wire drawing machine, the integrated performance indexs such as the tensile strength of drawing finished product steel wire and toughness plasticity are guaranteed, meet the demand of drawing major diameter extra-high strength wire (steel wire diameter is greater than Φ 5.0mm, tensile strength higher than 1960MPa) fully.
The accompanying drawing explanation
Fig. 1 is drawing equipment structural representation of the present invention,
The top view that Fig. 2 is drawing equipment of the present invention.
In figure: 1-actinobacillus device, 2-workbench, 3-motor, 4-deceleration device, 5-reel, 6-pressure water-cooled diaphragm capsule, 7-take-up.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail:
The technological process of Φ 5.0mm 1960MPa extra-high strength wire manufacturing process of the present invention is: raw material selection → surface treatment → wire drawing → destressing temper.
Processing step of the present invention is:
1, raw material is selected
Select the special-purpose wire rod of the satisfactory φ 16mm of chemical composition and mechanical property, 82B.
Chemical composition is: C:0.80～0.85%, Si:0.12～0.32%, Mn:0.60～0.90%, P :≤0.020%, S :≤0.025%, Cr :≤0.20%, Ni :≤0.10%, Mo :≤0.03%, Cu :≤0.10%, N :≤0.007%, Cr+Ni+Cu≤0.30% wherein
Cu+Sn≤0.15%。
Mechanical property: wire rod tensile strength 1180～1300MPa, elongation after fracture >=11%, the contraction percentage of area >=35%.
Microscopic structure: the wire rod sorbite percentage should be greater than 90%, and wire rod must not have network cementite, quenching structure to reach the tissue harmful to performance.
2, surface treatment
Remove the iron scale on wire rod surface by adopting tunnel type pickling mode, during the wire rod surface treatment, the descaling bath of successively wire rod being put into to the tunnel type pickling lines carries out pickling, then uses the high pressure water flushing wash clean, then phosphatization and boronation processing are carried out in the wire rod surface after cleaning.
Descaling bath in the tunnel type pickling lines preferably is set to 4.
The concentration of descaling bath is controlled, and is preferably: the 1st descaling bath: hydrochloric acid 100～145g/l, frerrous chloride 100～140 g/l;
The 2nd descaling bath: hydrochloric acid 175～205g/l, frerrous chloride 25～55g/l;
The 3rd descaling bath: hydrochloric acid 215～245g/l, frerrous chloride 10～25g/l;
The 4th descaling bath: hydrochloric acid 20～40g/l, frerrous chloride≤30g/l.
3, wire drawing
Wire drawing is that wire rod enforcement tube reducing is drawn to the finished diameter specification, wire rod diameter of the present invention is 16mm, the steel wire drawing total draught is 90.3%, belong to the super-pressure shrinkage, the design of Partial shrinkage rate adopts the Partial shrinkage rate distribution method of the broken line type of " the first passage is less, the second passage maximum; later drawing passes reduces successively ", be preferably≤14%, the second passage largest portion compression ratio design of the first passage Partial shrinkage rate design is preferably 25%, and all the other passage Partial shrinkage rates reduce successively.
4, destressing temper
Steel wire is carried out to the destressing temper, eliminate steel wire stress, further improve the steel wire combination property.
Drawing equipment for the manufacture of Φ 5.0mm 1960MPa extra-high strength wire, mainly by actinobacillus device 1, workbench 2, motor 3, deceleration device 4, reel 5, take-up 7 and pressure water-cooled diaphragm capsule 6, formed, motor 3 is arranged at the dead astern of reel 5, deceleration device 4 is connected with motor 5, and pressure water-cooled diaphragm capsule 6 is positioned at the place ahead of reel 5 inlet wires.
Diameter >=the 1270mm of described reel 5.
Drawing equipment of the present invention also comprises the drawing process intelligent identifying system, and described drawing process intelligent identifying system is realized by PLC Programming program, and is kept in data block.
The Φ 5.0mm 1960MPa extra-high strength wire that the present invention manufactures after testing, technical indicator is: tensile strength >=1960MPa, crooked >=8 times, reverse >=12 times, percentage elongation >=4.0%, reach designing requirement, meet the national large-scale construction projects such as ocean engineering with steel wire rope the demand to the major diameter extra-high strength wire.
Claims (6)
1. Φ 5.0mm 1960MPa extra-high strength wire manufacturing process, it is characterized in that: technological process is: raw material selection → surface treatment → wire drawing → destressing temper; Its processing step is:
(1) raw material is selected
Select the special-purpose wire rod of the satisfactory φ 16mm of chemical composition and mechanical property, 82B;
Chemical composition is: C:0.80～0.85%, Si:0.12～0.32%, Mn:0.60～0.90%, P :≤0.020%, S :≤0.025%, Cr :≤0.20%, Ni :≤0.10%, Mo :≤0.03%, Cu :≤0.10%, N :≤0.007%, Cr+Ni+Cu≤0.30% wherein
Cu+Sn≤0.15%；
Mechanical property: wire rod tensile strength 1180～1300MPa, elongation after fracture >=11%, the contraction percentage of area >=35%;
Microscopic structure: the wire rod sorbite percentage should be greater than 90%, and wire rod must not have network cementite, quenching structure to reach the tissue harmful to performance;
(2) surface treatment
Remove the iron scale on wire rod surface by adopting tunnel type pickling mode, during the wire rod surface treatment, the descaling bath of successively wire rod being put into to the tunnel type pickling lines carries out pickling, then uses the high pressure water flushing wash clean, then phosphatization and boronation processing are carried out in the wire rod surface after cleaning;
(3) wire drawing
Wire rod diameter of the present invention is 16mm, the steel wire drawing total draught is 90.3%, belong to the super-pressure shrinkage, Partial shrinkage rate design adopts the Partial shrinkage rate distribution method of the broken line type of " the first passage is less; the second passage maximum, and later drawing passes reduces successively ", and the first passage Partial shrinkage rate design is preferably≤and 14%, the second passage largest portion compression ratio design is preferably 25%, and all the other passage Partial shrinkage rates reduce successively;
Wire drawing is carried out on the large-scale straight drawing machine of Φ 1270 with process intelligent recognition system and pressure water-cooled diaphragm capsule;
(4) destressing temper
Steel wire is carried out to the destressing temper, eliminate steel wire stress, further improve the steel wire combination property.
2. Φ 5.0mm 1960MPa extra-high strength wire manufacturing process as claimed in claim 1, it is characterized in that: the descaling bath in described tunnel type pickling lines preferably is set to 4.
3. Φ 5.0mm 1960MPa extra-high strength wire manufacturing process as claimed in claim 2 is characterized in that: the concentration of described descaling bath is controlled, and is preferably: the 1st descaling bath: hydrochloric acid 100～145g/l, frerrous chloride 100～140 g/l;
The 2nd descaling bath: hydrochloric acid 175～205g/l, frerrous chloride 25～55g/l;
The 3rd descaling bath: hydrochloric acid 215～245g/l, frerrous chloride 10～25g/l;
The 4th descaling bath: hydrochloric acid 20～40g/l, frerrous chloride≤30g/l.
4. for the manufacture of drawing equipment claimed in claim 1, the motor (3) mainly arranged by actinobacillus device (1), workbench (2), reel (5) and dead astern thereof and the deceleration device (4) be connected with motor (3) and take-up (7) form, it is characterized in that: also comprise pressure water-cooled diaphragm capsule (6), described pressure water-cooled diaphragm capsule (6) is positioned at the place ahead of reel (5) inlet wire.
5. drawing equipment as claimed in claim 4, is characterized in that: the diameter >=1270mm of described reel (5).
6. drawing equipment as described as claim 4 or 5, it is characterized in that: described drawing equipment also comprises the drawing process intelligent identifying system, described drawing process intelligent identifying system is realized by PLC Programming program, and is kept in data block.
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| CN201310480612.0A CN103495613A (en) | 2013-10-15 | 2013-10-15 | Production process and drawing equipment of phi-5.0mm 1960MPa super-strength steel wires |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588435A (en) * | 2014-12-28 | 2015-05-06 | 鞍钢钢绳有限责任公司 | Production method of 2000MPa-level microalloying steel wire for producing ropes |
| CN106755836A (en) * | 2016-11-29 | 2017-05-31 | 江阴祥瑞不锈钢精线有限公司 | The preparation technology of stainless steel wire |
| CN108130542A (en) * | 2017-12-18 | 2018-06-08 | 贵州钢绳股份有限公司 | A kind of tunnel type chlorohydric acid pickling production technology |
| CN108300841A (en) * | 2018-03-16 | 2018-07-20 | 张家港市瑞特金属材料有限公司 | The production method of high-performance steel wire |
| CN108486478A (en) * | 2018-05-31 | 2018-09-04 | 马鞍山钢铁股份有限公司 | A kind of 1960MPa grades of ocean engineering galvanized steel wire rope and its production method |
| CN110144574A (en) * | 2019-04-09 | 2019-08-20 | 山东大业股份有限公司 | A kind of lubricant coating of steel wire and the method for forming lubricant coating in steel wire surface |
| CN111974827A (en) * | 2020-08-21 | 2020-11-24 | 南通市华星钢丝制品有限公司 | Production method of steel wire material for high-strength optical fiber cable |
| CN113463103A (en) * | 2021-06-10 | 2021-10-01 | 天津银龙预应力材料股份有限公司 | Production process of 2100-plus-2400 mpa-strength prestressed steel strand |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588435A (en) * | 2014-12-28 | 2015-05-06 | 鞍钢钢绳有限责任公司 | Production method of 2000MPa-level microalloying steel wire for producing ropes |
| CN104588435B (en) * | 2014-12-28 | 2017-02-22 | 鞍钢钢绳有限责任公司 | Production method of 2000MPa-level microalloying steel wire for producing ropes |
| CN106755836A (en) * | 2016-11-29 | 2017-05-31 | 江阴祥瑞不锈钢精线有限公司 | The preparation technology of stainless steel wire |
| CN108130542A (en) * | 2017-12-18 | 2018-06-08 | 贵州钢绳股份有限公司 | A kind of tunnel type chlorohydric acid pickling production technology |
| CN108300841A (en) * | 2018-03-16 | 2018-07-20 | 张家港市瑞特金属材料有限公司 | The production method of high-performance steel wire |
| CN108486478A (en) * | 2018-05-31 | 2018-09-04 | 马鞍山钢铁股份有限公司 | A kind of 1960MPa grades of ocean engineering galvanized steel wire rope and its production method |
| CN110144574A (en) * | 2019-04-09 | 2019-08-20 | 山东大业股份有限公司 | A kind of lubricant coating of steel wire and the method for forming lubricant coating in steel wire surface |
| CN111974827A (en) * | 2020-08-21 | 2020-11-24 | 南通市华星钢丝制品有限公司 | Production method of steel wire material for high-strength optical fiber cable |
| CN113463103A (en) * | 2021-06-10 | 2021-10-01 | 天津银龙预应力材料股份有限公司 | Production process of 2100-plus-2400 mpa-strength prestressed steel strand |
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Application publication date: 20140108 |