CN108994120A - It is applicable in superhigh intensity, the method for coiling of the small diameter cylinder of ultra-thick steel plates and system - Google Patents

It is applicable in superhigh intensity, the method for coiling of the small diameter cylinder of ultra-thick steel plates and system Download PDF

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Publication number
CN108994120A
CN108994120A CN201810866138.8A CN201810866138A CN108994120A CN 108994120 A CN108994120 A CN 108994120A CN 201810866138 A CN201810866138 A CN 201810866138A CN 108994120 A CN108994120 A CN 108994120A
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CN
China
Prior art keywords
bending
cylinder
steel plate
finished product
semi
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CN201810866138.8A
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Chinese (zh)
Inventor
韦汉超
谭晓东
金军
王钢
李晓行
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Anhui zirconium Fu Marine Engineering Technology Co., Ltd.
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Shanghai Zr Zhuo Ship Design Co Ltd
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Priority to CN201810866138.8A priority Critical patent/CN108994120A/en
Publication of CN108994120A publication Critical patent/CN108994120A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08Making tubes with welded or soldered seams

Abstract

The invention discloses the method for coiling for the small diameter cylinder for being applicable in superhigh intensity, ultra-thick steel plates and systems, method for coiling is comprising steps of apply two pre- bent-up ends that pre-bending power pre-bending rectangular steel plates are oppositely arranged along first direction, so that the pre- bent-up end forms arc panel, the rectangular steel plates form pre-bending steel plate;When the arc panel radius and pre-set radius error meet the first preset value, and the arc panel along first direction size not less than the veneer reeling machine two lower rolls center away from half when;After preheating the pre-bending steel plate, the pre-bending steel plate after preheating is sent into veneer reeling machine and is rolled, so that the pre-bending steel plate forms the semi-finished product cylinder with longitudinal joint.For the present invention without using template with high costs, manufacturing cost is low;And the precision of the cylinder of processing formation is high;The phenomenon that no cutting technique head causes waste of material, so that realizing no surplus pre-bending rolls cylinder;And processing flow is easy, easy to operate and realization.

Description

It is applicable in superhigh intensity, the method for coiling of the small diameter cylinder of ultra-thick steel plates and system
Technical field
The present invention relates to steel pipes to manufacture processing technique field, is espespecially applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates Method for coiling and system.
Background technique
Current existing method for coiling is divided into pre-bending and rolls and roll without pre-bending.
The small cylinder of existing processing superhigh intensity, ultra-thick plate, diameter can use pre-bending method for coiling, but existing pre-bending Method for coiling has the following disadvantages: corresponding according to the diameter matches of rolled cylinder with template pre-bending needs on three rolls plate bending machine Template, higher cost.Or it is in remained straight edge at technique cylinder material both ends lengthening formation process head, it is cut after pre-bending molding Except technique head, but waste of material is caused, increased manufacturing cost.In summary, pre-bending rolls higher cost.
Although no pre-bending method for coiling solves waste of material when pre-bending rolls, for superhigh intensity, ultra-thick plate, Not applicable (the thickness and diameter ratio > 7% of such as unimach, and steel yield strength is greater than of the small cylinder of diameter 650Mpa), the reason is that drum diameter is too small, intensity is high, and thickness is thick, and straight flange molding in both ends is poor when fourth contact, and precision is low.Such as nothing Pre-bending method for coiling can not work request number be CN201620314988.3 patent in main chord tube.Therefore, how one is provided Kind be not only applicable in the small cylinder of superhigh intensity, ultra-thick plate, diameter but the method for coiling of saving cost be those skilled in the art urgently The technical problem of solution.
Summary of the invention
The object of the present invention is to provide the method for coiling for the small diameter cylinder for being applicable in superhigh intensity, ultra-thick steel plates and system, Without using template with high costs, manufacturing cost is low;And the precision of the cylinder of processing formation is high;No cutting technique head causes material The phenomenon that material waste, so that realizing no surplus pre-bending rolls cylinder;And processing flow is easy, easy to operate and realization.
Technical solution provided by the invention is as follows:
A kind of method for coiling being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates, comprising steps of
Apply two pre- bent-up ends that pre-bending power pre-bending rectangular steel plates are oppositely arranged along first direction, so that the pre- bent-up end shape Camber plate, the rectangular steel plates form pre-bending steel plate;Wherein, the axis direction of two lower rolls of first direction and veneer reeling machine hangs down Directly;
When the radius of the arc panel and error the first preset value of satisfaction of pre-set radius, and the arc panel is along first party To size not less than the veneer reeling machine two lower rolls center away from half when;It, will after preheating the pre-bending steel plate The pre-bending steel plate after preheating, which is sent into veneer reeling machine, to be rolled, so that the pre-bending steel plate forms the semi-finished product circle with longitudinal joint Cylinder.
In the technical program, for this method for coiling without using template with high costs, manufacturing cost is low;And processing formation The precision of cylinder is high;Rolling for cylinder can be carried out after pre-bending rectangular steel plates, the phenomenon that no cutting technique head causes waste of material, Cylinder is rolled to realize no surplus pre-bending;And processing flow is easy, easy to operate and realization.
It is further preferred that Error Absolute Value≤5% of first preset value.
In the technical program, it is worth noting that, the arc length of arc panel should be the minor arc of target cylinder (i.e. ideal cylinder), And the arc length of arc panel should be not less than the position and target drum and veneer reeling machine that the upper roller positioned at target drum and veneer reeling machine contacts Arc length and the default mismachining tolerance of satisfaction between the position of one of lower roll contact, and the radius of arc panel should meet default add Work error reduces to guarantee that arc length and radius are all satisfied the default mismachining tolerance being correspondingly arranged for rolling for subsequent cylinder Difficulty of processing.
It is further preferred that two pre-bendings for applying pre-bending power pre-bending rectangular steel plates and being oppositely arranged along first direction End, so that the pre- bent-up end forms arc panel, the rectangular steel plates form pre-bending steel plate and specifically include step:
The pre-bending end-rack is set to along the spaced apart two sub- molds of first direction, so that the pre- bent-up end is along the The center line in one direction has Chong Die above and below the center line of first direction with described two submodules;
Apply pre-bending power in a second direction in the centerline of the pre- bent-up end, so that the pre- bent-up end is recessed to be formed downwards The arc panel, the rectangular steel plates form pre-bending steel plate;Wherein, second direction is vertical with first direction.
In the technical program, in the pre- bent-up end of pre-bending, pre-bending power is preferably and in the center line of pre- bent-up end, two sub- molds Heart line is overlapped up and down, to ensure that the uniformity and the good circular arc degree of arc panel of pre- bent-up end stress, during reduction pre-bending The mismachining tolerance of arc panel, to avoid the waste of steel.
It is further preferred that described be set to the pre-bending end-rack along the spaced apart two sub- molds of first direction, So that the pre- bent-up end along center line and the described two submodules of first direction have along first direction center line up and down it is be overlapped it Before further comprise the steps of:
Described two submodule tools are adjusted along the spacing of first direction according to pre-bending demand.
In the technical program, according to the spacing between two sub- molds of adjustment of the size adaptability of different cylinders, thus The scope of application and use scope of the invention are improved, cylinder manufacturer is greatly reduced and manufactures being produced into for different size cylinders This, reduces board idleness of the invention, improves production efficiency and production capacity of the invention.
It is further preferred that the pre-bending steel plate after preheating is sent into veneer reeling machine after the preheating pre-bending steel plate It inside rolls, so that the pre-bending steel plate is formed there is the semi-finished product cylinder of longitudinal joint to specifically include step:
It is kept the temperature after the pre-bending steel plate is heated to 580 ± 20 DEG C, soaking time 2.5h;
The pre-bending steel plate after preheating is sent into veneer reeling machine and is rolled, so that the pre-bending steel plate, which is formed, has longitudinal joint Semi-finished product cylinder;The pre-bending steel plate rolls initial temperature W1 >=350 DEG C, the rolling of the pre-bending steel plate complete temperature W2 >= 300℃。
In the technical program, by the control to temperature and time, the precision of the cylinder after rolling ensure that.
It is further preferred that the pre-bending steel plate after preheating is sent into veneer reeling machine after the preheating pre-bending steel plate It inside rolls, so that the pre-bending steel plate further comprises the steps of: after forming the semi-finished product cylinder with longitudinal joint
When the longitudinal joint of the semi-finished product cylinder is unsatisfactory for default welding parameter, press the semi-finished product cylinder make it is described After the longitudinal joint of semi-finished product cylinder meets default welding parameter, the longitudinal joint of the semi-finished product cylinder is welded, make described half at Product cylinder is processed to first product cylinder.
In the technical program, in order to reduce the waste of steel, the longitudinal joint of semi-finished product cylinder after rolling is unsatisfactory for welding When parameter, longitudinal joint size can be made to become smaller and realize the possibility of welding by pressing semi-finished product cylinder, and then improve this hair Bright yield and production capacity.
It is further preferred that the pre-bending steel plate after preheating is sent into veneer reeling machine after the preheating pre-bending steel plate It inside rolls, so that the pre-bending steel plate further comprises the steps of: after forming the semi-finished product cylinder with longitudinal joint
When the longitudinal joint of the semi-finished product cylinder meets welding parameter, the longitudinal joint of the semi-finished product cylinder is welded, The semi-finished product cylinder is set to be processed to first product cylinder.
It is further preferred that the longitudinal joint to the semi-finished product cylinder welds, add the semi-finished product cylinder Work further comprises the steps of: later at first product cylinder
When the ovality of the first product cylinder is unsatisfactory for default ovality, the first product cylinder is heated to 580 2.5h is kept the temperature after ± 20 DEG C;The first product cylinder after preheating is sent into veneer reeling machine fourth contact, becomes the first product cylinder Finished product cylinder.
In the technical program, in order to meet different cylinders ovality demand, when first roll it is first discontented at cylinder When foot presets ovality, by the way that fourth contact operates again after heating, the accuracy of the cylinder after rolling ensure that.
The present invention also provides a kind of superhigh intensity, the small diameter cylinders of ultra-thick steel plates to roll system, comprising:
Pre-bending device is used for two pre- bent-up ends that pre-bending rectangular steel plates are oppositely arranged along first direction, so that described pre- Bent-up end forms arc panel, and the rectangular steel plates form pre-bending steel plate;
Preheating device is used to preheat the pre-bending steel plate;
Veneer reeling machine, the pre-bending steel plate after being used to roll the preheating device preheating, so that the pre-bending steel plate shape At the semi-finished product cylinder with longitudinal joint.
In the technical program, system is originally rolled without using template with high costs, manufacturing cost is low;And processing formation The precision of cylinder is high;Rolling for cylinder can be carried out after pre-bending rectangular steel plates, the phenomenon that no cutting technique head causes waste of material, Cylinder is rolled to realize no surplus pre-bending;And processing flow is easy, easy to operate and realization.
It is further preferred that the pre-bending device includes columned pressure head, and lower section and edge set on the pressure head The spaced apart two sub- molds of first direction, i.e. the first submodule tool and the second submodule tool;First submodule tool and described the Two submodules tool is adjustable along the spacing of first direction;And/or
Further include press device, is used for the pressing when the longitudinal joint of the semi-finished product cylinder is unsatisfactory for default welding parameter The semi-finished product cylinder makes the longitudinal joint of the semi-finished product cylinder meet default welding parameter.
In the technical program, according to the spacing between two sub- molds of adjustment of the size adaptability of different cylinders, thus The scope of application and use scope of the invention are improved, cylinder manufacturer is greatly reduced and manufactures being produced into for different size cylinders This, reduces board idleness of the invention, improves production efficiency and production capacity of the invention.
In the technical program, in order to reduce the waste of steel, the longitudinal joint of semi-finished product cylinder after rolling is unsatisfactory for welding When parameter, longitudinal joint size can be made to become smaller and realize the possibility of welding by pressing semi-finished product cylinder, and then improve this hair Bright yield and production capacity.
It is provided by the invention to be applicable in superhigh intensity, the method for coiling of the small diameter cylinder of ultra-thick steel plates and system, it being capable of band Come it is following at least one the utility model has the advantages that
1, in the present invention, reel is rolled without using template with high costs, manufacturing cost is low;And the cylinder that processing is formed Precision it is high;Rolling for cylinder can be carried out after pre-bending rectangular steel plates, the phenomenon that no cutting technique head causes waste of material, thus It realizes no surplus pre-bending and rolls cylinder;And processing flow is easy, easy to operate and realization.
2, in the present invention, the arc length of arc panel should be the minor arc of target cylinder (i.e. ideal cylinder), in order to guarantee arc panel The arc length of the accuracy and accuracy of process, arc panel should be not less than the upper roller contact positioned at target drum and veneer reeling machine The default mismachining tolerance of the arc length between position and satisfaction that position is contacted with target drum and the one of lower roll of veneer reeling machine, and arc The radius of shape plate should meet default mismachining tolerance, thus guarantee that arc length and radius are all satisfied the default mismachining tolerance being correspondingly arranged, And pre-bending power is preferably Chong Die up and down with the center line of the center line of pre- bent-up end, two sub- molds, thus ensure that pre- bent-up end by The good circular arc degree of uniformity and arc panel of power reduces the mismachining tolerance of arc panel during pre-bending, to avoid steel Waste;And difficulty of processing is reduced for rolling for subsequent cylinder.
3, in the present invention, can also it is different according to the size of cylinder and between the adjustment of adaptability two sub- molds of adjustment between Away from greatly reducing cylinder manufacturer and manufacture different size cylinders to improve the scope of application and use scope of the invention Production cost, reduce board idleness of the invention, improve production efficiency and production capacity of the invention.
Detailed description of the invention
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, to applicable superhigh intensity, super thick steel The method for coiling of the small diameter cylinder of plate and above-mentioned characteristic, technical characteristic, advantage and its implementation of system give further Explanation.
Fig. 1 is the first embodiment flow chart of method for coiling of the invention;
Fig. 2 is second of embodiment flow chart of method for coiling of the invention;
Fig. 3 is the third embodiment flow chart of method for coiling of the invention;
Fig. 4 is the 4th kind of embodiment flow chart of method for coiling of the invention;
Fig. 5 is the 5th kind of embodiment flow chart of method for coiling of the invention;
Fig. 6 is the 6th kind of embodiment flow chart of method for coiling of the invention;
Fig. 7 is the first embodiment flow process chart for rolling system of the invention.
Drawing reference numeral explanation:
11. pressure head, 2. rectangular steel plates, 21. first pre- bent-up ends, 22. second pre- bent-up ends, 3. pre-bending steel plates, 31. first arcs Plate, 32. second arc panels, 41. upper rollers, 42. left rollers, 43. right rollers, R1. arc panel radius, R2. target circular cylinder radius, L1. arc Shape plate length, the center L2. away from.
Specific embodiment
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, Detailed description of the invention will be compareed below A specific embodiment of the invention.It should be evident that drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically shown in each figure, their not generations Its practical structures as product of table.In addition, there is identical structure or function in some figures so that simplified form is easy to understand Component, only symbolically depict one of those, or only marked one of those.Herein, "one" not only table Show " only this ", can also indicate the situation of " more than one ".Herein, first direction here is not CAS Institute of Physics definition Direction, first direction here should be the direction with the radial direction of reel parallel and normal to the axis direction of roller, answers It is to understand parallel and normal to those skilled in the art such as the directions of the axis direction of roller for the radial direction with upper roller Direction.
In example 1, as shown in Figure 1, a kind of side of rolling for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates Method, comprising steps of
Apply two pre- bent-up ends that pre-bending power pre-bending rectangular steel plates are oppositely arranged along first direction, so that the pre- bent-up end shape Camber plate, the rectangular steel plates form pre-bending steel plate;Wherein, the axis direction of two lower rolls of first direction and veneer reeling machine hangs down Directly;
When the radius of the arc panel and error the first preset value of satisfaction of pre-set radius, and the arc panel is along first party To size not less than the veneer reeling machine two lower rolls center away from half when;It, will after preheating the pre-bending steel plate The pre-bending steel plate after preheating, which is sent into veneer reeling machine, to be rolled, so that the pre-bending steel plate forms the semi-finished product circle with longitudinal joint Cylinder.
In the present embodiment, for this method for coiling without using template with high costs, manufacturing cost is low;And the circle that processing is formed The precision of cylinder is high;Rolling for cylinder can be carried out after pre-bending rectangular steel plates, the phenomenon that no cutting technique head causes waste of material, from And it realizes no surplus pre-bending and rolls cylinder;And processing flow is easy, easy to operate and realization.Although in practical application, veneer reeling machine Type have symmetrical three rolls plate bending machine, asymmetric three rolls plate bending machine, four-roll plate bending machine;But it is applicable in this method for coiling, but not Under the usable condition of symmetrical three rolls plate bending machine processing, arc panel is greater than the center of two lower rolls along the size of first direction certainly Away from half, and be not less than the vertical line and two lower roll circle center line connectings of the upper roller center of circle and vertical two lower roll circle center line connectings Intersection point with apart from the intersection point apart from the distance between maximum center of circle be worth.When veneer reeling machine is for four-roll plate bending machine, here two A lower roll refers to below upper roller and is distributed in the left roller and right roller at left and right sides of upper roller along first direction, rather than is located at upper Immediately below the roller and center of circle is lower than the third lower roll in two lower roll centers of circle.
In example 2, as shown in Fig. 2, a kind of side of rolling for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates Method, but on the basis of do not limit to embodiment one, it is described to apply what pre-bending power pre-bending rectangular steel plates were oppositely arranged along first direction Two pre- bent-up ends, so that the pre- bent-up end forms arc panel, the rectangular steel plates form pre-bending steel plate and specifically include step:
The pre-bending end-rack is set to along the spaced apart two sub- molds of first direction, so that the pre- bent-up end is along the The center line in one direction has Chong Die above and below the center line of first direction with described two submodules;
Apply pre-bending power in a second direction in the centerline of the pre- bent-up end, so that the pre- bent-up end is recessed to be formed downwards The arc panel, the rectangular steel plates form pre-bending steel plate;Wherein, second direction is vertical with first direction.
In the present embodiment, pushed by the two sides of two sub- pre- pressure sides of mould support, and in the central axis of pre- pressure side And realize the molding of arc panel, according to mechanics principle, apply precompression in central axis, ensure that the stress of pre- bent-up end significantly Uniformity and be distributed in center line two sides pre- turn of bilge deformation uniformity and symmetry, to ensure that arc panel is molding Success rate effectively prevents the waste of steel plate.Preferably, in order to guarantee in arc panel forming process in the axial direction uniform Property, the component for applying precompression is preferably greater than rectangular steel plates along upper roller (since the upper roller of veneer reeling machine, lower roll are equal along the length of axis Be arranged in parallel, can also be lower roll therefore) axis direction size, to effectively avoid pre- bent-up end in the axial direction consistent Property, avoid conical head phenomenon.It is worth noting that pre-bending power can be gradual change power (become larger or become smaller), it can also be constant force.
In the third embodiment, as shown in figure 3, a kind of side of rolling for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates Method, but on the basis of do not limit to embodiment two, it is described that the pre-bending end-rack is set to spaced apart two along first direction On submodule tool, so that the pre- bent-up end has along the center line of first direction along the center line of first direction and described two submodules It is further comprised the steps of: before lower overlapping
Described two submodule tools are adjusted along the spacing of first direction according to pre-bending demand.
In the present embodiment, when needing to process various sizes of cylinder, then the size of the pre- bent-up end of arc panel is needed to form Certainly different, therefore pre-bending is used to support to improve the pre- bent-up end for the applicable different processing dimensions of device for processing pre- bent-up end The distance between two sub- molds at end are adjustable.
In example IV, as shown in figures 1 to 6, it is a kind of be applicable in superhigh intensity, the small diameter cylinders of ultra-thick steel plates rolls Method, but on the basis of do not limit to embodiment one, two or three, after the preheating pre-bending steel plate, described in after preheating Pre-bending steel plate is sent into veneer reeling machine and is rolled, so that it further includes step that the pre-bending steel plate forms the semi-finished product cylinder with longitudinal joint before It is rapid:
The upper roller of the veneer reeling machine is adjusted according to the demand of rolling, lower roll (is under two when veneer reeling machine is three rolls plate bending machine Roller;Be three lower rolls when veneer reeling machine is four-roll plate bending machine) between at least one distance of center circle.
In the present embodiment, according to the size (length, thickness, radius (internal diameter or outer diameter), intensive parameter etc.) of processing cylinder Condition is rolled adjust veneer reeling machine, so that it is guaranteed that the cylinder processed meets preset requirement.
In embodiment five, as shown in figure 4, a kind of side of rolling for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates Method, but on the basis of do not limit to embodiment one, two, three or four, after the preheating pre-bending steel plate, described in after preheating Pre-bending steel plate is sent into veneer reeling machine and is rolled, so that the pre-bending steel plate is formed there is the semi-finished product cylinder of longitudinal joint to specifically include step It is rapid:
It is kept the temperature after the pre-bending steel plate is heated to 580 ± 20 DEG C, soaking time 2.5h;
The pre-bending steel plate after preheating is sent into veneer reeling machine and is rolled, so that the pre-bending steel plate, which is formed, has longitudinal joint Semi-finished product cylinder;The pre-bending steel plate rolls initial temperature W1 >=350 DEG C, the rolling of the pre-bending steel plate complete temperature W2 >= 300℃。
In the present embodiment, by the control to temperature and time, the precision of the cylinder after rolling ensure that.
In embodiment six, as shown in figure 5, a kind of side of rolling for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates Method, but on the basis of do not limit to embodiment one, two, three, four or five, after the preheating pre-bending steel plate, after preheating The pre-bending steel plate is sent into veneer reeling machine and is rolled, so that the pre-bending steel plate also wraps after forming the semi-finished product cylinder with longitudinal joint Include step:
When the longitudinal joint of the semi-finished product cylinder is unsatisfactory for default welding parameter, press the semi-finished product cylinder make it is described After the longitudinal joint of semi-finished product cylinder meets default welding parameter, the longitudinal joint of the semi-finished product cylinder is welded, make described half at Product cylinder is processed to first product cylinder.
In the present embodiment, veneer reeling machine is only by the processing of pre-bending steel plate in the cylinder with longitudinal joint, but indulging in practical application Seam needs to weld and realize being made for cylinder.In order to guarantee that welding quality, the size of longitudinal joint will meet weld size, otherwise be easy Occur rosin joint phenomenon and cause cylinder quality be unsatisfactory for require and waste, therefore, can by be unsatisfactory for weld size partly at Product cylinder, which carries out pressing, makes its longitudinal joint size meet weld size and realize welding, to improve the cylinder finished product of this method for coiling Rate.Preferably, in order to guarantee welding quality, the groove face for forming longitudinal joint is polished smooth, and is carried out again after exposing metallic luster Welding.Preferably, (such as ray detection (Radiographic, RT), ultrasound examination can be also carried out non-destructive testing to groove face (UItrasonic Testing, UT), Magnetic testing (Magnetic Testing, MT)), if groove face passes through non-destructive testing When then welded;If can not by non-destructive testing if can by grinding process after weld again.
In embodiment seven, as shown in figure 5, a kind of side of rolling for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates Method, but on the basis of do not limit to embodiment one, two, three, four or five, after the preheating pre-bending steel plate, after preheating The pre-bending steel plate is sent into veneer reeling machine and is rolled, so that the pre-bending steel plate also wraps after forming the semi-finished product cylinder with longitudinal joint Include step:
When the longitudinal joint of the semi-finished product cylinder meets welding parameter, the longitudinal joint of the semi-finished product cylinder is welded, The semi-finished product cylinder is set to be processed to first product cylinder.
In the present embodiment, when the size of longitudinal joint meets weld size, then welding operation is directly executed.Certainly, it is Guarantee welding quality.The groove face for forming longitudinal joint is polished smooth, and is welded again after exposing metallic luster.When longitudinal joint Size can be welded directly when smaller, when the size of longitudinal joint is larger, the leftover pieces for being less than longitudinal joint size can be set in longitudinal joint It welds again afterwards.Preferably, (such as ray detection (Radiographic, RT), ultrasonic wave inspection can be also carried out non-destructive testing to groove face Survey (UItrasonic Testing, UT), Magnetic testing (Magnetic Testing, MT)), if groove face passes through lossless inspection It is then welded when survey;If can not by non-destructive testing if can by grinding process after weld again.
In embodiment eight, as shown in fig. 6, a kind of side of rolling for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates Method, but on the basis of do not limit to embodiment six or seven, the longitudinal joint to the semi-finished product cylinder welds, and makes described half Finished product cylinder is processed to further comprise the steps of: after first product cylinder
When the ovality of the first product cylinder is unsatisfactory for default ovality, the first product cylinder is heated to 580 2.5h is kept the temperature after ± 20 DEG C;The first product cylinder after preheating is sent into veneer reeling machine fourth contact, becomes the first product cylinder Finished product cylinder.
In the present embodiment, in order to meet different cylinders ovality demand, when first roll first be unsatisfactory at cylinder When default ovality, by the way that fourth contact operates again after heating, the accuracy of the cylinder after rolling ensure that.Preferably, to first product Cylinder carries out UT100% and outside MT100% non-destructive testing.When first product satisfactorily sufficient non-destructive testing, then judge its ovality Whether meet the requirements.It is subsequent also to need to carry out UT100% and outside MT100% non-destructive testing to finished product cylinder, pass through non-destructive testing It is just qualified products, it is just qualified products that same first product cylinder, which meets non-destructive testing meets ovality again when,.
In embodiment nine, as shown in figures 1 to 6, it is a kind of be applicable in superhigh intensity, the small diameter cylinders of ultra-thick steel plates rolls Method, but on the basis of do not limit to embodiment one, two, three, four, five, six, seven or eight,
Error Absolute Value≤5% of first preset value.
In the present embodiment, ideally, the arc length of arc panel should be the minor arc of target cylinder (i.e. ideal cylinder), and arc The arc length of shape plate should be not less than the position and target drum and veneer reeling machine that the upper roller positioned at target drum and veneer reeling machine contacts wherein The default mismachining tolerance of arc length and satisfaction between the position of one lower roll contact, and the radius of arc panel should meet default processing and miss Difference reduces processing to guarantee that arc length and radius are all satisfied the default mismachining tolerance being correspondingly arranged for rolling for subsequent cylinder Difficulty.
In embodiment ten, as shown in figures 1 to 6, it is a kind of be applicable in superhigh intensity, the small diameter cylinders of ultra-thick steel plates rolls Method, but on the basis of do not limit to embodiment one, two, three, four, five, six, seven, eight or nine, the pre- moment of flexure of the application pre-bending power Two pre- bent-up ends that shape steel plate is oppositely arranged along first direction, so that the pre- bent-up end forms arc panel, the rectangular steel plates shape It is further comprised the steps of: before at pre-bending steel plate
Remove the impurity of the plate face of the rectangular steel plates.
In the present embodiment, due to rectangular steel plates can stick during production, transport, storage are cut have impurity such as dirt, Therefore rust deposite, gas cutting dross-oxidised etc. first carry out the removal of impurity before pre-bending rectangular steel plates, improve this method for coiling Accuracy and efficiency avoid interference of the impurity to subsequent technique.
In embodiment 11, as shown in figures 1 to 6, a kind of volume being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates Method processed, but on the basis of do not limit to embodiment one, two, three, four, five, six, seven, eight, nine or ten, the application pre-bending power Two pre- bent-up ends that pre-bending rectangular steel plates are oppositely arranged along first direction, so that the pre- bent-up end forms arc panel, the rectangle Steel plate further comprises the steps of: before forming pre-bending steel plate
Chamfered is carried out to the side wall of the pre- bent-up end.
In the present embodiment, since in precompressed pre- bent-up end, rectangular steel plates can deformation occurs, guaranteed by chamfered Face and face face of two pre- bent-up ends in docking, improve the machining accuracy of cylinder.
In embodiment 12, as shown in figures 1 to 6, a kind of volume being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates Method processed, but on the basis of do not limit to embodiment one, two, three, four, five, six, seven, eight, nine, ten or 11, it is described apply it is pre- Two pre- bent-up ends that curved power pre-bending rectangular steel plates are oppositely arranged along first direction, so that the pre- bent-up end forms arc panel, it is described Rectangular steel plates further comprise the steps of: before forming pre-bending steel plate
Label pre-bending power imposes on the force application location line of the pre- bent-up end.
In the present embodiment, by label pre-bending power in the force application location line of pre- bent-up end, to ensure that the arc of pre- bent-up end Change accuracy, and force application location line is alternatively arranged as the reference position line that pre-bending end-rack is set to two sub- molds, to guarantee the position that exerts a force Set the surface that line is located at the center line of two sub- molds.Preferably, the label curved rectangular steel plates are further comprised the steps of: described in The center line of the axis direction of lower roll.The label of center line is convenient for pre-bending rectangular slab in the positional accuracy of veneer reeling machine and accurate Property, to ensure that the machining accuracy of cylinder, its ovality is reduced, showing for concentric reducer occurs in the cylinder that also can avoid processing As.Preferably, using template detection arc panel whether meet processing conditions, when arc panel meet processing conditions (radius, radian, Size etc. of the arc panel along first direction) when just to pre-bending steel plate carry out the pre-heat treatment.Template preferably corresponds to different cylinder rulers The different template of very little setting.It is worth noting that template can realize the inspection to arc panel and fitting in the inside of arc panel It surveys;Template can realize the detection to arc panel and fitting in the outside of arc panel;Template can also by with arc panel along axis Line is docked and realizes the detection to arc panel.Certainly, arc panel can also be scanned by instrument carry out whether arc panel accords with The judgement of processing conditions is closed, the method is more convenient.
In embodiment 13, as shown in fig. 7, it is a kind of be applicable in superhigh intensity, the small diameter cylinders of ultra-thick steel plates rolls System, comprising: pre-bending device is used for two pre- bent-up ends that pre-bending rectangular steel plates 2 are oppositely arranged along first direction, so that pre-bending End forms arc panel, and rectangular steel plates 2 form pre-bending steel plate 3;Preheating device is used to preheat pre-bending steel plate 3;Veneer reeling machine is used Pre-bending steel plate 3 after rolling preheating device preheating, so that pre-bending steel plate 3 forms the semi-finished product cylinder with longitudinal joint.This implementation In example, preheating device both can also can be used as the heating device of first product cylinder as the pre-heat treatment of pre-bending steel plate 3.Certainly, Heating device for preheating the heating device of pre-bending steel plate 3 and for heating first product cylinder can also fill for different heating It sets.Preferably, preheating device can be electric furnace or natural gas electric furnace.Pre-bending device can the successively pre- bent-up end of precompressed;It can also Two pre- bent-up ends of pre-bending simultaneously.And veneer reeling machine can not only be used for rolling pre-bending steel plate 3 makes the formation of pre-bending steel plate 3 with longitudinal joint half Finished product cylinder.Also it can be used as the first product cylinder that fourth contact ovality is unsatisfactory for default ovality, so that first product cylinder becomes into Product cylinder.It is worth noting that veneer reeling machine may be either symmetrical three rolls plate bending machine, asymmetric three rolls plate bending machine, four-roll plate bending machine.It is excellent Selection of land, in order to improve veneer reeling machine scope of application veneer reeling machine upper roller 41 and lower roll center two-by-two it is adjustable away from least one.
In embodiment 14, as shown in fig. 7, further including press device, it is used for when the longitudinal joint of semi-finished product cylinder is discontented When foot presets welding parameter, pressing semi-finished product cylinder makes the longitudinal joint of semi-finished product cylinder meet default welding parameter.In order to guarantee The synchronism that longitudinal joint size is reduced, it is preferable that longitudinal joint is located at press device at a half-distance of supporting surface, so that Press device makes the two sidewalls of longitudinal joint (i.e. according to semi-finished product cylinder stress from upper upright lower pressing semi-finished product cylinder The end face of two pre- pressure sides) synchronous relative motion, to be conducive to soldering.Preferably, pre-bending device includes columned (i.e. pressure head 11 is cylindrical surface, and the axis direction in face of cylinder axis direction and cylinder close to the surface of pre- pressure side side to pressure head 11 It is identical), and set on pressure head 11 lower section and along the spaced apart two sub- molds of first direction, i.e. the first submodule tool and second Submodule tool;First submodule tool and the second submodule tool are adjustable along the spacing of first direction.Preferably, the first submodule tool and the second submodule Tool is the supporting block to extend along lower roll axis direction.Preferably, pre-bending device is hydraulic press.
Illustratively, as shown in figs. 1-7, the rectangular steel plates with following parameter are processed using this method for coiling or system 2: thickness :≤100mm, diameter >=1000mm, steel plate width :≤3000mm, steel plate yield strength: 690Mpa is (such as: material ABS- EQ70,LR-EH69);Roundness tolerance after roll-forming :≤2.5mm;Thickness and diameter ratio are between 7~10%.Using setting It is standby: the veneer reeling machine of YJ-8000 t hydraulic press, W11S-100 × 3200, the box electric furnace of 10m*3.2m*1.6m, 16m*5m*4m days The large scale equipments such as combustion gas electric furnace.
Firstly, adjusting the first submodule tool and the second submodule two sub- molds of tool along the spacing of first direction according to pre-bending demand
Then, the pre-bending end-rack of pre-bending rectangular steel plates 2 is set to the top of the first submodule tool and the second submodule tool, it is rear logical Cross pressure head 11 close to pre- bent-up end force application location line and downward apply pre-bending power.It is worth noting that due to there are two pre- bent-up ends, I.e. first pre- bent-up end 21 and the second pre- bent-up end 22, therefore, the first pre- bent-up end 21 and the second pre- bent-up end 22 can be processed to form simultaneously First arc panel 31 and the second annular slab or the first pre- bent-up end 21 and the second pre- bent-up end 22 are successively processed to form the first arc Plate 31 and the second arc panel 32;When the radius R1 and radius of target circular cylinder radius R2 of the first arc panel 31 and the second arc panel 32 are missed Poor absolute value≤5%;First arc panel 31 and the second arc panel 32 are not less than left roller 42 along the arc panel length L1 of first direction With the center of right roller 43 away from half when, then rectangular slab becomes pre-bending steel plate 3.
Again, it is kept the temperature after preheating 3 to 580 ± 20 DEG C of pre-bending steel plate using preheating device, soaking time 2.5h.
Again, the pre-bending steel plate 3 after preheating is placed on veneer reeling machine, so that center line and benchmark on pre-bending steel plate 3 Line is folded up and down to be set, and is opened veneer reeling machine and is started to roll.It is worth noting that the reference line of center line may be disposed at upper roller 41, it can also It is arranged on left roller 42, right roller 43 or ground.And pre-bending steel plate 3 rolls initial temperature W1 >=350 DEG C, pre-bending steel plate 3 rolls Complete temperature W2 >=300 DEG C.So that pre-bending steel plate 3 becomes semi-finished product cylinder.
Again, when the longitudinal joint of semi-finished product cylinder meets welding parameter, the longitudinal joint of semi-finished product cylinder is welded, makes half Finished product cylinder is processed to first product cylinder.Or, when the longitudinal joint of semi-finished product cylinder is unsatisfactory for default welding parameter, pressing half at After product cylinder makes the longitudinal joint of semi-finished product cylinder meet default welding parameter, the longitudinal joint of semi-finished product cylinder is welded, makes half Finished product cylinder is processed to first product cylinder.
Finally, UT100% and outside MT100% non-destructive testing are carried out to first product cylinder, when the satisfactory foot of first product is lossless When detection, then judge whether its ovality meets the requirements;When satisfactorily sufficient non-destructive testing meets ovality requirement to first product simultaneously, It is then qualified product.When first product satisfactorily sufficient non-destructive testing but when being unsatisfactory for ovality and requiring, need for first product cylinder to be heated to 2.5h is kept the temperature after 580 ± 20 DEG C;First product cylinder after preheating is sent into veneer reeling machine fourth contact, makes first product cylinder as finished product circle Cylinder;It is subsequent also to need to carry out UT100% and outside MT100% non-destructive testing to finished product cylinder, when finished product cylinder meets non-destructive testing Shi Zewei qualified product.
It should be noted that above-described embodiment can be freely combined as needed.The above is only of the invention preferred Embodiment, it is noted that for those skilled in the art, in the premise for not departing from the principle of the invention Under, several improvements and modifications can also be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.

Claims (10)

1. a kind of method for coiling for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates, which is characterized in that comprising steps of
Apply two pre- bent-up ends that pre-bending power pre-bending rectangular steel plates are oppositely arranged along first direction, so that the pre- bent-up end forms arc Shape plate, the rectangular steel plates form pre-bending steel plate;Wherein, first direction is vertical with the axis direction of two lower rolls of veneer reeling machine;
When the radius of the arc panel and error the first preset value of satisfaction of pre-set radius, and the arc panel is along first direction Size not less than the veneer reeling machine two lower rolls center away from half when;After preheating the pre-bending steel plate, it will preheat The pre-bending steel plate afterwards is sent into veneer reeling machine and is rolled, so that the pre-bending steel plate forms the semi-finished product cylinder with longitudinal joint.
2. the method for coiling according to claim 1 for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates, feature exist In:
Error Absolute Value≤5% of first preset value.
3. the method for coiling according to claim 1 for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates, feature exist In the two pre- bent-up ends for applying pre-bending power pre-bending rectangular steel plates and being oppositely arranged along first direction, so that the pre- bent-up end shape Camber plate, the rectangular steel plates form pre-bending steel plate and specifically include step:
The pre-bending end-rack is set to along the spaced apart two sub- molds of first direction, so that the pre- bent-up end is along first party To center line and described two submodules tool along first direction center line up and down it is Chong Die;
Apply pre-bending power in a second direction in the centerline of the pre- bent-up end, so that the pre- bent-up end is recessed downwards described in formation Arc panel, the rectangular steel plates form pre-bending steel plate;Wherein, second direction is vertical with first direction.
4. the method for coiling according to claim 3 for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates, feature exist In, it is described that the pre-bending end-rack is set to along the spaced apart two sub- molds of first direction, so that the pre- bent-up end is along the The center line in one direction and described two submodules have that the center line along first direction is Chong Die up and down to be further comprised the steps of: before
Described two submodule tools are adjusted along the spacing of first direction according to pre-bending demand.
5. the side according to any one of claims 1-4 of rolling for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates Method, which is characterized in that after the preheating pre-bending steel plate, the pre-bending steel plate after preheating is sent into veneer reeling machine and is rolled, So that the pre-bending steel plate is formed there is the semi-finished product cylinder of longitudinal joint to specifically include step:
It is kept the temperature after the pre-bending steel plate is heated to 580 ± 20 DEG C, soaking time 2.5h;
The pre-bending steel plate after preheating is sent into veneer reeling machine and is rolled so that the pre-bending steel plate formed have the half of longitudinal joint at Product cylinder;The pre-bending steel plate rolls initial temperature W1 >=350 DEG C, and temperature W2 >=300 are completed in rolling for the pre-bending steel plate ℃。
6. the method for coiling according to claim 5 for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates, feature exist In the pre-bending steel plate after preheating being sent into veneer reeling machine and is rolled, so that the pre-bending after the preheating pre-bending steel plate Steel plate further comprises the steps of: after forming the semi-finished product cylinder with longitudinal joint
When the longitudinal joint of the semi-finished product cylinder is unsatisfactory for default welding parameter, press the semi-finished product cylinder make described half at After the longitudinal joint of product cylinder meets default welding parameter, the longitudinal joint of the semi-finished product cylinder is welded, makes the semi-finished product circle Cylinder is processed to first product cylinder.
7. the method for coiling according to claim 5 for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates, feature exist In the pre-bending steel plate after preheating being sent into veneer reeling machine and is rolled, so that the pre-bending after the preheating pre-bending steel plate Steel plate further comprises the steps of: after forming the semi-finished product cylinder with longitudinal joint
When the longitudinal joint of the semi-finished product cylinder meets welding parameter, the longitudinal joint of the semi-finished product cylinder is welded, institute is made It states semi-finished product cylinder and is processed to first product cylinder.
8. the method for coiling according to claim 6 or 7 for being applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates, special Sign is that the longitudinal joint to the semi-finished product cylinder welds, and the semi-finished product cylinder is made to be processed to first product cylinder It further comprises the steps of: later
When the ovality of the first product cylinder is unsatisfactory for default ovality, the first product cylinder is heated to 580 ± 20 2.5h is kept the temperature after DEG C;The first product cylinder after preheating is sent into veneer reeling machine fourth contact, the first product cylinder is made to become finished product Cylinder.
9. it is a kind of be applicable in superhigh intensity, the small diameter cylinders of ultra-thick steel plates rolls system characterized by comprising
Pre-bending device is used for two pre- bent-up ends that pre-bending rectangular steel plates are oppositely arranged along first direction, so that the pre- bent-up end Arc panel is formed, the rectangular steel plates form pre-bending steel plate;
Preheating device is used to preheat the pre-bending steel plate;
Veneer reeling machine, the pre-bending steel plate after being used to roll the preheating device preheating, so that the pre-bending steel plate forms tool There is the semi-finished product cylinder of longitudinal joint.
10. it is according to claim 9 be applicable in superhigh intensity, the small diameter cylinder of ultra-thick steel plates rolls system, feature It is:
The pre-bending device includes columned pressure head, and set on the pressure head lower section and along first direction it is spaced apart Two sub- molds, i.e. the first submodule tool and the second submodule tool;The first submodule tool and second submodule tool are along first direction Spacing it is adjustable;And/or
Further include press device, is used for when the longitudinal joint of the semi-finished product cylinder is unsatisfactory for default welding parameter, described in pressing Semi-finished product cylinder makes the longitudinal joint of the semi-finished product cylinder meet default welding parameter.
CN201810866138.8A 2018-08-01 2018-08-01 It is applicable in superhigh intensity, the method for coiling of the small diameter cylinder of ultra-thick steel plates and system Pending CN108994120A (en)

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CN110355542A (en) * 2019-08-05 2019-10-22 石家庄金博惠工具有限公司 A kind of production technology of pipe crimping drill rod matrix

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CN110355542A (en) * 2019-08-05 2019-10-22 石家庄金博惠工具有限公司 A kind of production technology of pipe crimping drill rod matrix

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