CN102989819A - Steel production process with forging-rolling combination - Google Patents
Steel production process with forging-rolling combination Download PDFInfo
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- CN102989819A CN102989819A CN2012105288622A CN201210528862A CN102989819A CN 102989819 A CN102989819 A CN 102989819A CN 2012105288622 A CN2012105288622 A CN 2012105288622A CN 201210528862 A CN201210528862 A CN 201210528862A CN 102989819 A CN102989819 A CN 102989819A
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- round steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 75
- 239000010959 steel Substances 0.000 title claims abstract description 75
- 238000005096 rolling process Methods 0.000 title claims abstract description 64
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000005242 forging Methods 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 238000009749 continuous casting Methods 0.000 claims abstract description 25
- 238000005516 engineering process Methods 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 230000002441 reversible effect Effects 0.000 claims abstract description 9
- 230000011218 segmentation Effects 0.000 claims description 22
- 238000005520 cutting process Methods 0.000 claims description 16
- 238000010583 slow cooling Methods 0.000 claims description 16
- 238000012856 packing Methods 0.000 claims description 15
- 238000003801 milling Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 7
- 238000003303 reheating Methods 0.000 abstract 3
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention relates to a steel production process which is a steel production process with forging-rolling combination, and the process flow comprises: steel ingot or continuous casting blank heating, forging, reheating, rolling, cropping ends and sectioning, cooling, finishing, examination, marking, packaging and weighing, and warehousing; in the steel ingot or continuous casting blank heating procedure, the heating temperature is 1150 DEG C; in the forging procedure, the forging ratio is controlled to be 3, and the final forging temperature is 1000 DEG C; in the reheating procedure, when the final forging temperature is below 900 DEG C, reheating is needed, and the heating temperature is 1050 DEG C; in the rolling procedure, a two-roller reversible mill is adopted, and the desired shape and dimension are obtained through a square-elliptic-round hole pattern. The invention not only has the advantages of both forging technology and rolling technology, but also is high in production efficiency, high in rolling yield, high in size precision, low in consumption, dense in internal structure, high in mechanical properties, and excellent in metallographic structure.
Description
Technical field
The present invention relates to a kind of production technology of steel, the steel production technology of specifically a kind of forging rolling combination.
Background technology
Present round steel plastic forming technique mainly contains forging, rolling etc., and these two kinds of techniques are independently production technology, and the technological process of production of forging is: steel ingot/continuous casting billet → heating → forging → cooling → finishing → check → mark → packing is weighed → put in storage.The characteristics of forging production technique are that the inherent dense structure of product, mechanical property are high, and therefore many important products such as axle all require to use forging, but the single products production cycle of forging production technique is long and poor dimensional precision, so the cost of forging is very high.
The rolling technological process of production is: steel ingot/continuous casting billet → heating → rolling → crop end/segmentation → cooling → finishing → check → mark → packing is weighed → is put in storage, the characteristics of Rolling Production technique are that production efficiency is high, lumber recovery is high, the product size precision high, it is low to consume, but that does not organize the product inherence of Rolling Production technique is not fine and close, mechanical property is slightly poor, so rolled piece can only be used for the common equipment of ask for something.
Forge and rolling these two kinds of production technologies respectively have advantage, but deficiency is also arranged, if can organic combination, can solve the deficiency of these two kinds of techniques.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of prior art, a kind of steel production technology of forging rolling combination is proposed, not only with the advantage of Forging Technology and rolling mill practice, and have the production efficiency height, lumber recovery is high, dimensional accuracy is high, consume low, inherent dense structure, mechanical property height and the excellent advantage of metallographic structure.
The technical scheme that the present invention solves above technical problem is:
A kind of steel production technology of forging rolling combination, its technological process is: the heating → rolling → crop end of steel ingot or continuous casting billet heating → forge → again and segmentation → cooling → finishing → check → mark → packing are weighed → are put in storage; The technological parameter of concrete each operation is:
Steel ingot or continuous casting billet heating process: heating-up temperature is 1100～1180 ℃;
Forging process: the control forging ratio is 3～4,900～1050 ℃ of terminal section temperature;
Heating process again: heating-up temperature is 1000～1080 ℃;
Rolling process: adopt the two-roller reversible milling train, pass by side → ellipse → circle obtains required shape and size, rolling elliptical aperture adopts the bielliptic(al) pass, rolling pass 5～9 roads, each passage elongation control is 1.1～1.25, rolling temperature is controlled to be 950～1080 ℃, and mill speed is controlled to be 1～3m/s;
Crop end and segmentation operation: butt ingot length 2%(steel total length 2%), back-end crop length is the shared length ratio of ingot head opening weight+1%; Continuous casting billet cutting head cutting tail length be controlled to be 1～2%(steel total length 2%);
Refrigerating work procedure: the round steel of segmentation naturally cools to 550～600 ℃ in air, the holding pit slow cooling of then packing into, and control slow cooling speed≤10 ℃/h, behind 48～72h, round steel temperature≤150 ℃ hang out holding pit and naturally cool off;
Finishing procedure: align after the round steel cooling, select gag straightener, two-roll reeler or multi-roll straightening machine to align, behind the aligning round steel blemish is cleared up, carry out subsequently ultrasonic examination, qualified round steel mark bundling warehouse-in.
The invention has the beneficial effects as follows: the present invention has increased rolling mill practice on the basis of Forging Technology, thereby this technique is with the advantage of Forging Technology and rolling mill practice; Adopt technique of the present invention, can enhance productivity, the inherent dense structure of lumber recovery, product size precision, product and product mechanical property, can stabilized product quality, reduce consuming.
Compare with single Forging Technology, this technique has the production efficiency height, lumber recovery is high, dimensional accuracy is high, consume the low advantage that reaches constant product quality; Compare with single rolling mill practice, the product of this explained hereafter has inherent dense structure and the high forging material characteristics of mechanical property, even metallographic structure is better than forging material.
The specific embodiment
Embodiment 1
A kind of steel production technology of forging rolling combination, its technological process is: the heating → rolling → crop end of steel ingot or continuous casting billet heating → forge → again and segmentation → cooling → finishing → check → mark → packing are weighed → are put in storage; The technological parameter of concrete each operation is:
Steel ingot or continuous casting billet heating process: heating-up temperature is 1100 ℃;
Forging process: the control forging ratio is 3,900 ℃ of terminal section temperature;
Heating process again: heating-up temperature is 1000 ℃;
Rolling process: adopt the two-roller reversible milling train, obtain required shape and size by side → ellipse → round pass, rolling elliptical aperture adopts the bielliptic(al) pass, rolling pass 5 roads, each passage elongation control is 1.1, and rolling temperature is controlled to be 950 ℃, and mill speed is controlled to be 13m/s;
Crop end and segmentation operation: butt ingot length 2%, back-end crop length are ingot head opening weight proportion+1%; Continuous casting billet cutting head cutting tail length is controlled to be 1%;
Refrigerating work procedure: the round steel of segmentation naturally cools to 550 ℃ in air, the holding pit slow cooling of then packing into, and control slow cooling speed 10 ℃/h, behind 48h, round steel temperature≤150 ℃ hang out holding pit and naturally cool off;
Finishing procedure: align after the round steel cooling, select gag straightener, two-roll reeler or multi-roll straightening machine to align, behind the aligning round steel blemish is cleared up, carry out subsequently ultrasonic examination, qualified round steel mark bundling warehouse-in.
Embodiment 2
A kind of steel production technology of forging rolling combination, its technological process is: the heating → rolling → crop end of steel ingot or continuous casting billet heating → forge → again and segmentation → cooling → finishing → check → mark → packing are weighed → are put in storage; The technological parameter of concrete each operation is:
Steel ingot or continuous casting billet heating process: heating-up temperature is 1150 ℃;
Forging process: the control forging ratio is 3,1000 ℃ of terminal section temperature;
Heating process again: heating-up temperature is 1050 ℃;
Rolling process: adopt the two-roller reversible milling train, obtain required shape and size by side → ellipse → round pass, rolling elliptical aperture adopts the bielliptic(al) pass, rolling pass 7 roads, each passage elongation control is 1.15, and rolling temperature is controlled to be 1000 ℃, and mill speed is controlled to be 2m/s;
Crop end and segmentation operation: butt ingot length is by 2%, and back-end crop length is ingot head opening weight proportion+1%; Continuous casting billet cutting head cutting tail length is controlled to be 2%;
Refrigerating work procedure: the round steel of segmentation naturally cools to 580 ℃ in air, the holding pit slow cooling of then packing into, and control slow cooling speed 80 ℃/h, behind 60h, round steel temperature≤150 ℃ hang out holding pit and naturally cool off;
Finishing procedure: align after the round steel cooling, select gag straightener, two-roll reeler or multi-roll straightening machine to align, behind the aligning round steel blemish is cleared up, carry out subsequently ultrasonic examination, qualified round steel mark bundling warehouse-in.
Embodiment 3
A kind of steel production technology of forging rolling combination, its technological process is: the heating → rolling → crop end of steel ingot or continuous casting billet heating → forge → again and segmentation → cooling → finishing → check → mark → packing are weighed → are put in storage; The technological parameter of concrete each operation is:
Steel ingot or continuous casting billet heating process: heating-up temperature is 1180 ℃;
Forging process: the control forging ratio is 4,1050 ℃ of terminal section temperature;
Heating process again: heating-up temperature is 1080 ℃;
Rolling process: adopt the two-roller reversible milling train, obtain required shape and size by side → ellipse → round pass, rolling elliptical aperture adopts the bielliptic(al) pass, rolling pass 9 roads, each passage elongation control is 1.25, and rolling temperature is controlled to be 1080 ℃, and mill speed is controlled to be 3m/s;
Crop end and segmentation operation: butt ingot length is by 2%, and back-end crop length is ingot head opening weight proportion+1%; Continuous casting billet cutting head cutting tail length is controlled to be 2%;
Refrigerating work procedure: the round steel of segmentation naturally cools to 600 ℃ in air, the holding pit slow cooling of then packing into, and control slow cooling speed 60 ℃/h, behind 72h, round steel temperature≤150 ℃ hang out holding pit and naturally cool off;
Finishing procedure: align after the round steel cooling, select gag straightener, two-roll reeler or multi-roll straightening machine to align, behind the aligning round steel blemish is cleared up, carry out subsequently ultrasonic examination, qualified round steel mark bundling warehouse-in.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (4)
1. the steel production technology of a forging rolling combination, it is characterized in that: its technological process is: the heating → rolling → crop end of steel ingot or continuous casting billet heating → forge → again and segmentation → cooling → finishing → check → mark → packing are weighed → are put in storage; The technological parameter of concrete each operation is:
Steel ingot or continuous casting billet heating process: heating-up temperature is 1100～1180 ℃;
Forging process: the control forging ratio is 3～4,900～1050 ℃ of terminal section temperature;
Heating process again: heating-up temperature is 1000～1080 ℃;
Rolling process: adopt the two-roller reversible milling train, pass by side → ellipse → circle obtains required shape and size, rolling elliptical aperture adopts the bielliptic(al) pass, rolling pass 5～9 roads, each passage elongation control is 1.1～1.25, rolling temperature is controlled to be 950～1080 ℃, and mill speed is controlled to be 1～3m/s;
Crop end and segmentation operation: butt ingot length is by 2%, and back-end crop length is ingot head opening weight proportion+1%; Continuous casting billet cutting head cutting tail length is controlled to be 1～2%;
Refrigerating work procedure: the round steel of segmentation naturally cools to 550～600 ℃ in air, the holding pit slow cooling of then packing into, and control slow cooling speed≤10 ℃/h, behind 48～72h, round steel temperature≤150 ℃ hang out holding pit and naturally cool off;
Finishing procedure: align after the round steel cooling, select gag straightener, two-roll reeler or multi-roll straightening machine to align, behind the aligning round steel blemish is cleared up, carry out subsequently ultrasonic examination, qualified round steel mark bundling warehouse-in.
2. the steel production technology of forging rolling combination as claimed in claim 1, it is characterized in that: specifically the technological parameter of each operation is:
Steel ingot or continuous casting billet heating process: heating-up temperature is 1100 ℃;
Forging process: the control forging ratio is 3,900 ℃ of terminal section temperature;
Heating process again: heating-up temperature is 1000 ℃;
Rolling process: adopt the two-roller reversible milling train, obtain required shape and size by side → ellipse → round pass, rolling elliptical aperture adopts the bielliptic(al) pass, rolling pass 5 roads, each passage elongation control is 1.1, and rolling temperature is controlled to be 950 ℃, and mill speed is controlled to be 13m/s;
Crop end and segmentation operation: butt ingot length 2%, back-end crop length are ingot head opening weight proportion+1%; Continuous casting billet cutting head cutting tail length is controlled to be 1%;
Refrigerating work procedure: the round steel of segmentation naturally cools to 550 ℃ in air, the holding pit slow cooling of then packing into, and control slow cooling speed 10 ℃/h, behind 48h, round steel temperature≤150 ℃ hang out holding pit and naturally cool off;
Finishing procedure: align after the round steel cooling, select gag straightener, two-roll reeler or multi-roll straightening machine to align, behind the aligning round steel blemish is cleared up, carry out subsequently ultrasonic examination, qualified round steel mark bundling warehouse-in.
3. the steel production technology of forging rolling combination as claimed in claim 1, it is characterized in that: specifically the technological parameter of each operation is:
Steel ingot or continuous casting billet heating process: heating-up temperature is 1150 ℃;
Forging process: the control forging ratio is 3,1000 ℃ of terminal section temperature;
Heating process again: heating-up temperature is 1050 ℃;
Rolling process: adopt the two-roller reversible milling train, obtain required shape and size by side → ellipse → round pass, rolling elliptical aperture adopts the bielliptic(al) pass, rolling pass 7 roads, each passage elongation control is 1.15, and rolling temperature is controlled to be 1000 ℃, and mill speed is controlled to be 2m/s;
Crop end and segmentation operation: butt ingot length is by 2%, and back-end crop length is ingot head opening weight proportion+1%; Continuous casting billet cutting head cutting tail length is controlled to be 2%;
Refrigerating work procedure: the round steel of segmentation naturally cools to 580 ℃ in air, the holding pit slow cooling of then packing into, and control slow cooling speed 80 ℃/h, behind 60h, round steel temperature≤150 ℃ hang out holding pit and naturally cool off;
Finishing procedure: align after the round steel cooling, select gag straightener, two-roll reeler or multi-roll straightening machine to align, behind the aligning round steel blemish is cleared up, carry out subsequently ultrasonic examination, qualified round steel mark bundling warehouse-in.
4. the steel production technology of forging rolling combination as claimed in claim 1, it is characterized in that: specifically the technological parameter of each operation is:
Steel ingot or continuous casting billet heating process: heating-up temperature is 1180 ℃;
Forging process: the control forging ratio is 4,1050 ℃ of terminal section temperature;
Heating process again: heating-up temperature is 1080 ℃;
Rolling process: adopt the two-roller reversible milling train, obtain required shape and size by side → ellipse → round pass, rolling elliptical aperture adopts the bielliptic(al) pass, rolling pass 9 roads, each passage elongation control is 1.25, and rolling temperature is controlled to be 1080 ℃, and mill speed is controlled to be 3m/s;
Crop end and segmentation operation: butt ingot length is by 2%, and back-end crop length is ingot head opening weight proportion+1%; Continuous casting billet cutting head cutting tail length is controlled to be 2%;
Refrigerating work procedure: the round steel of segmentation naturally cools to 600 ℃ in air, the holding pit slow cooling of then packing into, and control slow cooling speed 60 ℃/h, behind 72h, round steel temperature≤150 ℃ hang out holding pit and naturally cool off;
Finishing procedure: align after the round steel cooling, select gag straightener, two-roll reeler or multi-roll straightening machine to align, behind the aligning round steel blemish is cleared up, carry out subsequently ultrasonic examination, qualified round steel mark bundling warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012105288622A CN102989819A (en) | 2012-12-11 | 2012-12-11 | Steel production process with forging-rolling combination |
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| CN2012105288622A CN102989819A (en) | 2012-12-11 | 2012-12-11 | Steel production process with forging-rolling combination |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107717363A (en) * | 2017-12-01 | 2018-02-23 | 贵研资源（易门）有限公司 | The preparation method of high-purity standard platinum ingot |
| CN110153346A (en) * | 2018-03-29 | 2019-08-23 | 钢铁研究总院淮安有限公司 | A kind of method of the forging rolling duplex technique production long material of steel alloy big cross section |
| CN112246867A (en) * | 2020-08-25 | 2021-01-22 | 山东润金重工科技有限公司 | Rapid forging and rolling method and device for square steel |
| US20220410432A1 (en) * | 2020-01-30 | 2022-12-29 | Sk Siltron Co., Ltd. | Ingot temperature controller and wire sawing device having same |
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| CN101246120A (en) * | 2007-02-16 | 2008-08-20 | 宝山钢铁股份有限公司 | Production method of high-homogeneity chromium-nickel austenite stainless steel optical spectrum emendation example |
| JP2009280869A (en) * | 2008-05-23 | 2009-12-03 | Sanyo Special Steel Co Ltd | Steel manufacturing method |
| CN102126121A (en) * | 2010-12-08 | 2011-07-20 | 扬州诚德重工有限公司 | New process combining forging and rolling |
| CN102162066A (en) * | 2011-03-28 | 2011-08-24 | 徐英忱 | Medical martensitic stainless steel material and preparation method thereof |
| CN102181802A (en) * | 2011-04-21 | 2011-09-14 | 北京科技大学 | Preparation method of easy welding high strength toughness X80 pipe line steel for magnesium treatment |
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2012
- 2012-12-11 CN CN2012105288622A patent/CN102989819A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001347302A (en) * | 2000-06-06 | 2001-12-18 | Sanyo Special Steel Co Ltd | Metal rolling method |
| CN101246120A (en) * | 2007-02-16 | 2008-08-20 | 宝山钢铁股份有限公司 | Production method of high-homogeneity chromium-nickel austenite stainless steel optical spectrum emendation example |
| JP2009280869A (en) * | 2008-05-23 | 2009-12-03 | Sanyo Special Steel Co Ltd | Steel manufacturing method |
| CN102126121A (en) * | 2010-12-08 | 2011-07-20 | 扬州诚德重工有限公司 | New process combining forging and rolling |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107717363A (en) * | 2017-12-01 | 2018-02-23 | 贵研资源（易门）有限公司 | The preparation method of high-purity standard platinum ingot |
| CN110153346A (en) * | 2018-03-29 | 2019-08-23 | 钢铁研究总院淮安有限公司 | A kind of method of the forging rolling duplex technique production long material of steel alloy big cross section |
| US20220410432A1 (en) * | 2020-01-30 | 2022-12-29 | Sk Siltron Co., Ltd. | Ingot temperature controller and wire sawing device having same |
| US12090685B2 (en) * | 2020-01-30 | 2024-09-17 | Sk Siltron Co., Ltd. | Ingot temperature controller and wire sawing device having same |
| CN112246867A (en) * | 2020-08-25 | 2021-01-22 | 山东润金重工科技有限公司 | Rapid forging and rolling method and device for square steel |
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Application publication date: 20130327 |