CN111872130A - High-speed cold rolling pretreatment process method - Google Patents
High-speed cold rolling pretreatment process method Download PDFInfo
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- CN111872130A CN111872130A CN202010689382.9A CN202010689382A CN111872130A CN 111872130 A CN111872130 A CN 111872130A CN 202010689382 A CN202010689382 A CN 202010689382A CN 111872130 A CN111872130 A CN 111872130A
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- raw material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/72—Rear end control; Front end control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/18—Weight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/20—Temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
The invention provides a high-speed cold rolling pretreatment process method, which comprises the following steps: controlling the components and the coil weights of the raw material steel coils with different specifications; carrying out later-stage temperature control in the production process of the raw steel coil; carding the head and tail directions of the raw material steel coil before feeding; and bending the head and the tail of the raw material steel coil at fixed positions. The invention controls the components, the coil weight and the temperature in the production process of the raw material steel coil in the pretreatment stage, combs the head-tail direction of the raw material steel coil, and bends the head and the tail of the raw material steel coil, so that the produced high-speed cold-rolled steel is not easy to have the problems of winding, breaking, deformation and the like, and the production quality and the efficiency of the high-speed cold-rolled steel are improved.
Description
Technical Field
The invention relates to the technical field of cold rolling, in particular to a high-speed cold rolling pretreatment process method.
Background
At present, in a high-speed cold rolled steel production process, due to the limitation of the pretreatment process level, the conditions of cold rolled steel winding, tensile failure, deformation and the like exist, and the quality problem is caused.
Disclosure of Invention
Therefore, the invention provides a high-speed cold rolling pretreatment process method which can prevent the cold-rolled steel from winding, breaking, deforming and the like.
The invention provides a high-speed cold rolling pretreatment process method, which comprises the following steps: controlling the components and the coil weights of the raw material steel coils with different specifications; carrying out later-stage temperature control in the production process of the raw steel coil; carding the head and tail directions of the raw material steel coil before feeding; and bending the head and the tail of the raw material steel coil at fixed positions. The invention controls the components, the coil weight and the temperature in the production process of the raw material steel coil in the pretreatment stage, combs the head-tail direction of the raw material steel coil, and bends the head and the tail of the raw material steel coil, so that the produced high-speed cold-rolled steel is not easy to have the problems of winding, breaking, deformation and the like, and the production quality and the efficiency of the high-speed cold-rolled steel are improved.
Further, the step of controlling the components and the coil weights of the raw material steel coils with different specifications comprises the following steps: the coil weight is controlled to be 1.9-2.4 t.
Further, in the later stage temperature control step is carried out in the production process of the raw material steel coil, the method comprises the following steps: the spinning temperature is less than or equal to 940 ℃, and the coiling temperature is less than or equal to 500 ℃.
Further, in the step of carding the head and tail directions of the raw material steel coil before feeding, the method comprises the following steps: and (3) trimming the head and the tail of the raw material steel coil, carding and arranging again, trimming the raw material with unqualified head and tail, drawing 5-10 circles at the head of the raw material steel coil after meeting the requirement, carding and arranging the reinforcing steel bars again, drawing 5-20 circles at the tail of the raw material steel coil, and rearranging the reinforcing steel bars.
Further, the step of bending the head and the tail of the raw material steel coil at fixed positions comprises: the bending fixed position is arranged at the upper part of the raw material steel coil, the bending length is 0.5-1.0m, and the bending angle is 70-120 degrees.
Further, the head and tail cold sections of the raw steel coil do not exceed 20 circles.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 shows a flow chart of a high-speed cold rolling pretreatment process.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a high-speed cold rolling pretreatment process method, as shown in figure 1, comprising the following steps:
and step S1, controlling the components and the coil weights of the raw material steel coils with different specifications. Wherein, the coil weight is controlled to be 1.9-2.4t, and the following table I can be specifically referred.
Watch 1
And step S2, performing later-stage temperature control in the production process of the raw steel coil. Wherein, the spinning temperature is less than or equal to 940 ℃, and the coiling temperature is less than or equal to 500 ℃. The temperature is controlled at the later stage of the production process, the spinning temperature is controlled during production, the spinning is carried out at the lowest temperature, the cold control roller table cannot pause or creep, and the local temperature in the middle of the coil is high. The more fans are opened, the lower temperature of the coil collecting is ensured, and the coil is stable in shape and not easy to deform when the coil is collected. The factor is the first factor to overcome the difficulty of winding the high-speed feeding steel bars during the high-speed cold rolling of the wire coil.
And step S3, combing the head and tail directions of the raw material steel coil before feeding. The method comprises the following steps of trimming the head and the tail of a raw material steel coil, carding and arranging again, trimming raw materials with unqualified heads and tails, drawing out 5-10 circles of raw material steel coil heads to comb and arrange the reinforcing steel bars again after meeting requirements, and drawing out 5-20 circles of raw material steel coil tails to rearrange the reinforcing steel bars. Preferably, the head and tail cold sections of the raw steel coil do not exceed 20 circles. Specifically, the head and the tail of the raw material steel pipe are combed again, the head and the tail of the raw material steel pipe are pulled apart, the head and the tail of the raw material steel pipe are straightened, and the raw material steel pipe is combed and arranged in order again according to different specifications or the head and the tail of the raw material steel pipe in a disordered manner and is sequentially concentrated on a coil. The main overcoming factor makes the end of the coil difficult to wind and break during high-speed cold rolling production. The raw material steel coil is arranged in the head-tail direction of the raw material before feeding, and is sequentially fed in the head-tail direction and the tail-head direction of the same direction, and it needs to be explained that one side of the packing buckle at the knotting position of the raw material steel coil packing wire is the head part, and the other side is the tail part.
And step S4, bending the head and the tail of the raw steel coil at fixed positions. Preferably, the bending fixing position is at the upper position of the raw material steel coil, the bending length is 0.5-1.0m, and the bending angle is 70-120 degrees. The tail part of the raw material steel coil head is bent at the upper part of the coil, the angle and the length are well controlled, and the butt welding process is operated when vertical feeding is utilized.
The invention controls the components, the coil weight and the temperature in the production process of the raw material steel coil in the pretreatment stage, combs the head-tail direction of the raw material steel coil, and bends the head and the tail of the raw material steel coil, so that the produced high-speed cold-rolled steel is not easy to have the problems of winding, breaking, deformation and the like, and the production quality and the efficiency of the high-speed cold-rolled steel are improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A high-speed cold rolling pretreatment process method is characterized by comprising the following steps:
controlling the components and the coil weights of the raw material steel coils with different specifications;
carrying out later-stage temperature control in the production process of the raw steel coil;
carding the head and tail directions of the raw material steel coil before feeding;
and bending the head and the tail of the raw material steel coil at fixed positions.
2. The high-speed cold rolling pretreatment process method of claim 1, wherein the step of controlling the composition and the coil weight of the raw material coils with different specifications comprises the following steps:
the coil weight is controlled to be 1.9-2.4 t.
3. The high-speed cold rolling pretreatment process method of claim 1, wherein the step of controlling the temperature of the raw steel coil in the later stage of the production process comprises the following steps:
the spinning temperature is less than or equal to 940 ℃, and the coiling temperature is less than or equal to 500 ℃.
4. The high-speed cold rolling pretreatment process method of claim 1, wherein the step of carding the head and tail directions of the raw material steel coil before feeding comprises the following steps:
and (3) trimming the head and the tail of the raw material steel coil, carding and arranging again, trimming the raw material with unqualified head and tail, drawing 5-10 circles at the head of the raw material steel coil after meeting the requirement, carding and arranging the reinforcing steel bars again, drawing 5-20 circles at the tail of the raw material steel coil, and rearranging the reinforcing steel bars.
5. The high-speed cold rolling pretreatment process of claim 1, wherein the step of bending the head and the tail of the raw material steel coil in fixed positions comprises:
the bending fixed position is arranged at the upper part of the raw material steel coil, the bending length is 0.5-1.0m, and the bending angle is 70-120 degrees.
6. A high speed cold rolling pretreatment process as recited in any one of claims 1 to 5,
the head and tail non-cold sections of the raw steel coil do not exceed 20 circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010689382.9A CN111872130A (en) | 2020-07-17 | 2020-07-17 | High-speed cold rolling pretreatment process method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010689382.9A CN111872130A (en) | 2020-07-17 | 2020-07-17 | High-speed cold rolling pretreatment process method |
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| CN111872130A true CN111872130A (en) | 2020-11-03 |
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| CN202010689382.9A Pending CN111872130A (en) | 2020-07-17 | 2020-07-17 | High-speed cold rolling pretreatment process method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112742863A (en) * | 2020-12-04 | 2021-05-04 | 安阳复星合力新材料股份有限公司 | Production method of cold-rolled steel bar |
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| CN105149346A (en) * | 2015-09-07 | 2015-12-16 | 云南钛业股份有限公司 | Method of producing TA10 alloy wire rods through high-speed wire mill |
| CN107385177A (en) * | 2017-06-06 | 2017-11-24 | 无锡兴澄特种材料有限公司 | Medium carbon steel skin decarburization controls hot rolling wire production technology |
| CN108856338A (en) * | 2018-06-11 | 2018-11-23 | 江苏明璐不锈钢有限公司 | A kind of production method of high-speed rod |
| CN110000228A (en) * | 2019-05-07 | 2019-07-12 | 北京勤泽鸿翔冶金科技有限公司 | Stelmo line cooling control system and control method |
| CN111203446A (en) * | 2019-12-26 | 2020-05-29 | 河钢股份有限公司承德分公司 | Control method of distributing device and terminal equipment |
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2020
- 2020-07-17 CN CN202010689382.9A patent/CN111872130A/en active Pending
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| CN105149346A (en) * | 2015-09-07 | 2015-12-16 | 云南钛业股份有限公司 | Method of producing TA10 alloy wire rods through high-speed wire mill |
| CN107385177A (en) * | 2017-06-06 | 2017-11-24 | 无锡兴澄特种材料有限公司 | Medium carbon steel skin decarburization controls hot rolling wire production technology |
| CN108856338A (en) * | 2018-06-11 | 2018-11-23 | 江苏明璐不锈钢有限公司 | A kind of production method of high-speed rod |
| CN110000228A (en) * | 2019-05-07 | 2019-07-12 | 北京勤泽鸿翔冶金科技有限公司 | Stelmo line cooling control system and control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112742863A (en) * | 2020-12-04 | 2021-05-04 | 安阳复星合力新材料股份有限公司 | Production method of cold-rolled steel bar |
| CN112742863B (en) * | 2020-12-04 | 2023-06-09 | 安阳复星合力新材料股份有限公司 | Cold-rolled steel bar production method |
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Application publication date: 20201103 |