CN206415418U - A kind of middle base attachment means and system - Google Patents

Abstract

The utility model provides a kind of middle base attachment means and system, including block and makes the contiguous block clamping vibration device of its vibration and upsetting machine for applying upset force for clamping the outlet clamping device and entrance clamping device of base in the middle of forward and backward piece, for being clamped and connected.Its principle is：Between base in the middle of forward and backward piece, add a contiguous block, contiguous block is set to produce vibration, base end-face friction heat in the middle of the end face of contiguous block and front and rear block, the end contact position of base reaches visco-plasticity state in the middle of contiguous block and forward and backward piece, then applies upset force to base in the middle of rear piece, base in the middle of forward and backward piece is linked together by contiguous block, the utility model is simple in construction, bonding strength is high, connection speed is fast, energy consumption is low, it is adaptable to the connection between unlike material slab.

Description

A kind of middle base attachment means and system

Technical field

The utility model belongs to equipment of hot rolling field, is related to one kind and changes endless rolling applied to the conventional hot rolling of steel industry Cheng Zhong, the attachment means and system of middle base.

Background technology

Conventional panels band hot-tandem unit is produced to be rolled with monolithic centre base, typically will be through into mm finishing mill unit Threading is gone through, accelerates rolling, rolling of slowing down, throw the processes such as steel, whipping.In finishing stands, particularly ultra-thin gauge rolling when, Yi Strip head, which bites, between finishing stand is obstructed, and forms piling of steel, skidding and afterbody whipping and folds, and whipping formation folding bites, so that Produce roller surface damage etc.；Batched when take-up because strip front end is snakelike, caused by bending etc. and difficult form piling of steel etc.；Single briquet Rolling, every piece of strip plate will carry out loading prediction and gap values between rollers setting, if prediction of rolling force is inaccurate, because of prediction of rolling force error meeting Cause belt steel thickness, convexity to change the plate shape between frame to fluctuate；It is thin to ensure due to strip rapid heat dissipation in ultra-thin gauge rolling After belt steel rolling temperature, need to improve threading speed and stable rolling speed as far as possible, but threading speed is improved, various threading problems and Fault rate caused by head folding etc. increases, therefore traditional hot rolling produces Thin Specs by a definite limitation；In addition, finishing mill volume with Interval time between volume also influences the performance of milling train production capacity.

Hot-strip endless rolling refers to, in not piecemeal, a threading, the continuous finish rolling of progress of finish rolling stage rolling blank, roll Strip afterwards carries out bundling according to required weight by high-speed flying shear.Endless rolling surmounts while above-mentioned interruption problems in asymmetic rolling is solved It is interrupted the limitation of rolling：By solving the problems, such as threading without rolling end to end；Quality stability and lumber recovery are improved by stable rolling； By reducing threading number of times and making to batch off time almost nil raising production efficiency；It can produce and surmount limit rolling in the past The ultrathin strip or wide sheet of size, and by lubrication and rolling and force cold rolling new varieties.Endless Rolling Technology, is carried High strip lumber recovery, size shape precision and the ultra-thin specification ratio of Thin Specs, realize part " with hot Dai Leng ", reduction roll consumption Achieve and significantly produce effects.This technology is the once leap of steel production technology, is represented before world today's hot-strip Along technology.

In Endless Rolling Technology, the interconnection technique of middle base is to realize one of key technology of endless rolling after roughing. It can be realized because mm finishing mill unit uses the quality of connection of base in the middle of under tension-rolling, Warm status to affect endless rolling, if even Overlong time is connect, production efficiency is not only influenceed, obvious temperature drop will be also produced, and be difficult to follow-up finish rolling, if bonding strength is not High, poor quality, then junction easily occur broken belt, prevent continuous finish rolling from carrying out；And it is unsuitable complicated to connect equipment, otherwise It not only can be restricted equipment installation site, can also increase investment and production maintenance cost.

At present, base connection method mainly has ply rolling crimping, docking crimping, welding, machinery even in the middle of endless rolling Connection, reduction flame treatment connection method, direct-electrifying connection method, sensing heating connection method and method of laser welding etc..In these companies Connect in method, reach commercial Application has sensing heating connection method, laser heating connection method and shearing friction connection method.

Sensing heating connection method is the interconnection technique that Kawasaki Steel is used, and this method is by before preceding slab tail end and rear slab A minim gap is kept between end, in this case to thickness of slab direction apply alternating magnetic field, will two boards base binding end Face produces induced-current.Slab end face is generated heat due to Joule heat caused by this induced-current, heated up, and then will combine face pressure Connect completion connection.This connection method, due in sensing heating, flowing through the electric current in made-up belt end corner much smaller than in the middle part of flowing through Electric current, make the joint face end uncombined portion of residual.Meanwhile, the temperature of bonding pad is higher than the temperature of made-up belt other parts, and its is strong Degree is also below other regions, and therefore, bonding pad turns into the weak link during endless rolling, easily produces broken belt.

Laser hot weld connection is the interconnection technique that Nippon Steel uses, and compared with sensing heating connection method, can eliminate connection end Face is not associated with the presence in portion, but still there is the problem of temperature of joint portion is limited higher than other positions, and applicable steel grade；And And power is very big needed for laser, hence it is evident that increase equipment investment and production cost.

Shearing friction connection method is the cutter using particular design, middle base overlap is cut off along inclined-plane, by cutting Cut to form two non-oxidation surfaces, shearing force makes two surfaces newly formed occur relative motion, rubs, and produces big calorimetric Can, the diffusion on surface is accelerated, applies pressure while cutter is sheared to scarf and is allowed to along shear surface formation physical bond. This connection method carries out physical connection due to applying pressure to shear surface, is primarily adapted for use in material connection of the same race, material not of the same race When matter is connected, equally exist because chemical composition and Physical Metallurgy characteristic are different, the intensity of bonding pad is affected, meanwhile, should Equipment is huge, and space-consuming is big, equipment investment and the problems such as high maintenance cost.

In a word, middle base connected mode of the prior art, exist big, the middle base bonding strength of equipment investment it is not high, Connection speed is huge compared with slow, not to be suitable for Dissimilar Steels connection, equipment, one kind or several in these high problems of maintenance cost Kind.

The content of the invention

The deficiencies in the prior art in view of the above, the purpose of this utility model is to provide a kind of simple in construction, connection The attachment means of base in the middle of the hot rolled strip endless rolling that intensity is high, connection speed is fast.

In order to achieve the above objects and other related objects, the technical solution of the utility model is as follows：

A kind of middle base attachment means, including for clamping the outlet clamping device of base and entrance clamping in the middle of forward and backward piece Device, for being clamped and connected block and make contiguous block clamping vibration device and upsetting machine for applying upset force that it vibrates.

The device is made by contiguous block clamping vibration device in use, add a contiguous block between base in the middle of forward and backward piece Contiguous block produces vibration, the end face of contiguous block and forward and backward piece of middle base end-face friction heat, when contiguous block and forward and backward piece of centre The end contact position of base reaches visco-plasticity state, then applies upset force to base in the middle of rear piece, base in the middle of forward and backward piece is passed through even Block is connect to link together.

Further, in addition to body, outlet clamping device and entrance clamping device and contiguous block clamping vibration device are installed On body, it is provided with the body for ensureing the running gear that body is moved at the same speed with middle base.

Further, in addition to for receiving the contiguous block of cutter cutting, and the contiguous block is subjected to conveying feeding Contiguous block feeding device, the contiguous block feeding device is off-line equipment, outside body.

Further, in addition to contiguous block heating and heat-insulating device；Contiguous block heating and heat-insulating device is off-line equipment, positioned at body Outside, the heating and thermal insulation for contiguous block, makes contiguous block reach middle base identical temperature, and contiguous block is delivered into body；Institute State contiguous block feeding device contiguous block is delivered in the contiguous block heating and heat-insulating device.

Further, the upsetting machine is located at before entrance clamping device.

Further, the contiguous block clamping vibration device is arranged on the top of middle base, and drive connection block is perpendicular to centre Base upper and lower surface is vibrated；Or contiguous block clamping vibration device is arranged on middle base side, the middle base width side in drive connection block edge To vibration.

Further, the vibration frequency range of the contiguous block clamping vibration device is 10Hz-300Hz；Amplitude is less than or equal to 10mm。

Further, the upsetting force that the upsetting machine is applied by base in the middle of entrance clamping device backward block is 10MPa- 200MPa。

Further, the outlet clamping device, entrance clamping device include upper and lower grip block, the length of upper and lower grip block Degree is more than the width of middle base.

The utility model also provides a kind of middle base connection system, including a kind of above-mentioned middle base attachment means, also wraps Include pinch roll, cutter, flash trimmer and burr blow device, the pinch roll, cutter, middle base attachment means, unhairing Thorn machine and burr blow device are successively set between Coil Box and first finishing mill.

Body is driven by running gear, and body close to roughing mill side after coming to a complete stop, and contiguous block heating and heat-insulating device will even Connect block and be delivered to body, clamped by contiguous block clamping vibration device, blank strip tail is clamped by outlet clamping device in the middle of preceding piece, rear block Middle blank strip head is clamped by entrance clamping device, and contiguous block is located in the middle of forward and backward piece between base, wherein base is by entrance in the middle of rear block Clamping device is clamped, and base is clamped by outlet clamping device in the middle of preceding piece, is produced by contiguous block clamping vibration device drive connection block Vibrate and produce frictional heat with the end face of forward and backward piece of middle base, after connecting end surface reaches visco-plasticity state, upsetting machine leads to Crossing entrance clamping device, block centre base applies upsetting force backward, base in the middle of forward and backward piece is connected by contiguous block；Running gear For driving body, it is moved at the same speed with middle base, realize the on-line joining process of middle base, after connection is finished, driving body is returned Initial position is returned to, prepares the connection of next block of slab.

Wherein, the vibration frequency range of contiguous block clamping vibration device is 10Hz-300Hz；Amplitude is less than or equal to 10mm, excellent Elect 3mm-5mm as；Upsetting machine is located at before entrance clamping device, and upsetting machine is applied by base in the middle of entrance clamping device backward block Plus upsetting force is in 10MPa-200MPa；

Wherein, contiguous block clamping vibration device is located above middle base or side, and contiguous block clamping vibration device is arranged on When above middle base, contiguous block is perpendicular to middle base surface up-down vibration；Contiguous block clamping vibration device installs middle base in side During face, contiguous block vibrates along middle base width.

Wherein, outlet clamping device and entrance clamping device are provided with upper and lower grip block, and upper and lower clamping block length is big In the width of middle base.

The utility model has the beneficial effect that：

1st, equipment is simple：

Only a set of pinch need to be set between the Coil Box after conventional hot continuous rolling machine production line roughing mill and first finishing mill Roller, a set of cutter, a set of middle base attachment means, a set of flash trimmer, and a set of burr blow device.During due to upset The oxide-film of end face can be crushed and extruded, therefore be not required to the specially treateds such as de-scaling.

2nd, connection speed is fast：

Because contiguous block and middle base own temperature reach 950 DEG C~1100 DEG C, therefore only need the friction of very short time i.e. It can reach the visco-plasticity state for being adapted to welding.

3rd, bonding strength is high, it is adaptable to the slab connection of unlike material：

Using linear friction welding, materials to be welded is non-fusible, weld zone metal for forging tissue, no fusion welding lack Fall into；In the presence of upsetting force, weld zone generates some mechanics metallurgical effects, and friction surface can produce self-cleaning work With in the absence of oxide layer；The friction welding time is short, and heat affected area is narrow, and heat affected area tissue is without substantially roughening.These features are favourable In the strong welding point such as acquisition and mother metal, while also determining the extensive Technological adaptability of the present apparatus, it is suitable for unlike material Slab connection.

4th, less energy consumption

Contiguous block and the same equitemperature of middle base, equal material, and quality is small, less energy consumption needed for vibration.Compared to friction plate Form, there is no other particular/special requirements to contiguous block, the heat produced that rubs all is used for connecting portion and heated up.

Brief description of the drawings

Fig. 1 is the structural representation of base attachment means embodiment in the middle of the utility model；

Fig. 2 is Fig. 1 top views；

Fig. 3 is the middle base width vibration schematic diagram in contiguous block edge in Fig. 1；

Fig. 4 is contiguous block up-down vibration schematic diagram in Fig. 1.

Piece mark explanation：

1 contiguous block

2 contiguous block clamping vibration devices

3 contiguous block feeding devices

4 contiguous block heating and heat-insulating devices

5 entrance clamping devices

6 outlet clamping devices

7 upsetting machines

8 middle bases

Base in the middle of block after 81

Base in the middle of block before 82

9 running gears

Embodiment

Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this Content disclosed by specification understands other advantages of the present utility model and effect easily.

Embodiment

As depicted in figs. 1 and 2, the utility model provides a kind of middle base attachment means, and its principle is：In forward and backward piece Between between base, add a contiguous block 1, contiguous block 1 applied and vibrated, make its end face and forward and backward piece of centre base end-face friction heat, Visco-plasticity state is reached near end contact, then by applying upset force to base 81 in the middle of rear piece, passes through base in the middle of forward and backward piece Contiguous block 1 links together；Contiguous block 1 is obtained by cutter to the cutting to length end to end of any block in base in the middle of forward and backward piece.Even The direction of vibration for connecing block 1 is horizontal direction or vertical direction, i.e., perpendicular to the direction of middle base 8 or the width side along middle base 8 To.

Specifically, middle base attachment means include the entrance clamping device 5 and outlet clamping device for being used to clamp middle base 8 6th, contiguous block clamping vibration device 2, the upsetting machine 7 for applying upset force and for ensureing that body is moved at the same speed with middle base Running gear 9, contiguous block feeding device 3, contiguous block heating and heat-insulating device 4；Wherein, contiguous block clamping vibration device 2, entrance Clamping device 5 is arranged on body with outlet clamping device 6, and running gear 9 is arranged on below body, for driving body, connecting Block clamping vibration device 2, entrance clamping device 5 and outlet clamping device 6 is connect to move at the same speed with middle base.Contiguous block clamping vibration Device 2 is used to be clamped and connected block 1 and applies vibration to contiguous block.

Contiguous block feeding device 3 is off-line equipment, outside body, for receiving by the cutter cutting after Coil Box Contiguous block 1, and contiguous block 1 is delivered in contiguous block heating and heat-insulating device 4；Contiguous block heating and heat-insulating device 4 is offline dress Put, outside body, for the heating and thermal insulation of contiguous block 1, contiguous block 1 is reached middle base identical temperature.

Wherein, contiguous block clamping vibration device 2 has a clamping device for clamping contiguous block 1 and drives clamping device and company Connect the vibrator that block 1 is vibrated, vibrator can take various forms, such as motor-driven mechanical vibrators or Hydraulic vibrator or electromagnetic vibrator etc., meet the requirement that amplitude is controllable, frequency is controllable.

Upsetting machine 7 enables the rear block centre fast-holding of base 81 and continued mainly to the applying power of base 81 in the middle of rear piece Base 82 in the middle of contiguous block 1 and preceding block is compressed, lever amplification upset can further be passed through using motor driving or hydraulic-driven Power.

Contiguous block heating and heat-insulating device 4 is exactly a heating furnace, can be various heat forms, such as resistance, electromagnetism, temperature Degree is controllable.One steel-pushing apparatus is set on the outside of heating furnace, the contiguous block 1 in heating furnace is pushed in frame, pressed from both sides by contiguous block Vibrating device 2 is held to receive.

Contiguous block feeding device 3, which is used, falls on slipping for lower section under the structure type of conveyer chain, the contiguous block of cutter cutting On groove, it is slipped to by chute in conveyer chain, at the fire door that contiguous block heating and heat-insulating device 4 is sent to by conveyer chain, then Enter by pusher structure or chute in heating furnace.

The utility model also provides a kind of middle base connection system, the Coil Box after conventional hot continuous rolling machine production line roughing mill Between first finishing mill, pinch roll, cutter, middle base attachment means, flash trimmer and burr purging are set gradually Device.The oxide-film of end face can be crushed and extruded during due to upset, therefore be not required to the specially treateds such as de-scaling.Wherein, contiguous block 1 Cutter in front of middle base attachment means equipment is obtained to the cutting to length end to end of any block in base in the middle of forward and backward piece.

Specifically, body is driven by running gear 9, and body close to roughing mill side after coming to a complete stop, contiguous block heating and thermal insulation Contiguous block is delivered to body by device 4, is clamped by contiguous block clamping vibration device 2, and the magnetic tape trailer of base 82 is clamped by outlet in the middle of preceding piece Device 6 is clamped, and base 81 takes the lead to be clamped by entrance clamping device 5 in the middle of rear block, and contiguous block 1 is located in the middle of forward and backward piece between base, by The drive connection block of contiguous block clamping vibration device 2 produces vibration and produces friction, friction to solder joint with forward and backward piece of middle base end face Afterwards, upsetting machine 7 applies upsetting force by base 81 in the middle of entrance clamping device 5 backward block, base in the middle of forward and backward piece is passed through even Block 1 is connect to connect；Running gear 9 is used to drive body, it is moved at the same speed with middle base, realizes the on-line joining process of middle base, even Connect after finishing, driving body returns to initial position, prepares the connection of next block of slab.

Wherein, the vibration frequency range of contiguous block clamping vibration device 2 is 10Hz-300Hz；Amplitude is less than or equal to 10mm, Preferably 3mm-5mm；

Wherein, upsetting machine 7 is located at before entrance clamping device 5, and upsetting machine 7 passes through in entrance clamping device 5 backward block Between base 81 apply upsetting force in 10MPa-200MPa.

As shown in Figure 3 and Figure 4, contiguous block clamping vibration device 2 can be located at the middle top of base 8 or side, contiguous block clamping When vibrating device 2 installs middle base 8 up, contiguous block 1 is perpendicular to middle base surface up-down vibration；Contiguous block clamping vibration is filled When putting 2 installed in middle 8 side of base, contiguous block 1 vibrates along middle base width.

Wherein, outlet clamping device 6 and entrance clamping device 5 are provided with upper and lower grip block, upper and lower clamping block length More than the width of middle base, to ensure the stability of clamping；In addition, entrance can be saved if upsetting machine 7 is with holding function Clamping device 5.

The utility model is simple in construction：Only need to be in the Coil Box after conventional hot continuous rolling machine production line roughing mill and first finish rolling Between machine, a set of pinch roll, a set of cutter, a set of middle base attachment means, a set of flash trimmer, and a set of burr are set Blow device.The oxide-film of end face can be crushed and extruded during due to upset, therefore be not required to the specially treateds such as de-scaling.

Connection speed is fast：Because contiguous block and middle base own temperature reach 950 DEG C~1100 DEG C, therefore only need very in short-term Between friction i.e. can reach be adapted to welding visco-plasticity state.

Bonding strength is high, it is adaptable to the slab connection of unlike material：Using the method for linear friction welding, materials to be welded is not Fusing, weld zone metal is forging tissue, the defect of no fusion welding；In the presence of upsetting force, weld zone generates one A little mechanics metallurgical effects, and friction surface can produce self clean-up action, in the absence of oxide layer；The friction welding time is short, hot shadow Ring area narrow, heat affected area tissue is without substantially roughening.These features are conducive to the strong welding points such as acquisition and mother metal, while also determining Determine the present apparatus and the extensive Technological adaptability of method, be suitable for the slab connection of unlike material.

Less energy consumption：Contiguous block and the same equitemperature of middle base, equal material, and quality is small, less energy consumption needed for vibration.Compare The form of friction plate, does not have other particular/special requirements to contiguous block, and the heat produced that rubs all is used for connecting portion and heated up.

Any person skilled in the art all can be without prejudice under spirit and scope of the present utility model, to above-described embodiment Carry out modifications and changes.Therefore, such as those of ordinary skill in the art without departing from disclosed in the utility model Spirit and all equivalent modifications for being completed under technological thought or change, should be contained by claim of the present utility model Lid.

Claims (10)

1. a kind of middle base attachment means, it is characterised in that：Including for clamp in the middle of forward and backward piece the outlet clamping device of base and Entrance clamping device, for being clamped and connected block and make contiguous block clamping vibration device and top for applying upset force that it vibrates Forging device.

2. a kind of middle base attachment means according to claim 1, it is characterised in that：Also include body, outlet clamping dress Put and be arranged on entrance clamping device and contiguous block clamping vibration device on body, be provided with the body for ensure body with The running gear that middle base is moved at the same speed.

3. a kind of middle base attachment means according to claim 2, it is characterised in that：Also include being used to receive shearing machine-cut The contiguous block divided, and by the contiguous block feeding device of contiguous block progress conveying feeding, the contiguous block feeding device is offline Device, outside body.

4. a kind of middle base attachment means according to claim 3, it is characterised in that：Also include the heating for contiguous block Insulation, makes contiguous block reach middle base identical temperature and contiguous block is delivered to the contiguous block heating and heat-insulating device of body, should Contiguous block heating and heat-insulating device is off-line equipment, outside body；Contiguous block is delivered to described by the contiguous block feeding device In contiguous block heating and heat-insulating device.

5. a kind of middle base attachment means according to claim 1, it is characterised in that：The upsetting machine is located at inlet clip Hold before device.

6. a kind of middle base attachment means according to claim 1-5 any one, it is characterised in that：The contiguous block folder The top that vibrating device is arranged on middle base is held, drive connection block vibrates perpendicular to middle base upper and lower surface；Or contiguous block clamping Vibrating device is arranged on middle base side, the middle base width vibration in drive connection block edge.

7. a kind of middle base attachment means according to claim 1-5 any one, it is characterised in that：The contiguous block folder The vibration frequency range for holding vibrating device is 10Hz-300Hz；Amplitude is less than or equal to 10mm.

8. a kind of middle base attachment means according to claim 1-5 any one, it is characterised in that：The upsetting machine The upsetting force applied by base in the middle of entrance clamping device backward block is 10MPa-200MPa.

9. a kind of middle base attachment means according to claim 1-5 any one, it is characterised in that：The outlet clamping Device, entrance clamping device include upper and lower grip block, and the length of upper and lower grip block is more than the width of middle base.

10. a kind of middle base connection system, including a kind of middle base attachment means described in claim 1-9 any one, its It is characterised by：Also include pinch roll, cutter, flash trimmer and burr blow device, the pinch roll, cutter, middle base Attachment means, flash trimmer and burr blow device are successively set between Coil Box and first finishing mill.