CN114535520B - Method for adjusting roll gap of casting and rolling machine without stopping - Google Patents
Method for adjusting roll gap of casting and rolling machine without stopping Download PDFInfo
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- CN114535520B CN114535520B CN202210201431.9A CN202210201431A CN114535520B CN 114535520 B CN114535520 B CN 114535520B CN 202210201431 A CN202210201431 A CN 202210201431A CN 114535520 B CN114535520 B CN 114535520B
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- 238000005096 rolling process Methods 0.000 title claims abstract description 79
- 238000005266 casting Methods 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 79
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 30
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 5
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 239000003345 natural gas Substances 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/003—Aluminium alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
A method for adjusting the roll gap of a casting and rolling machine without stopping the machine, which relates to the technical field of aluminum processing and casting and rolling, comprises the following steps: s1, online measuring the same plate difference and locking a problem side roll gap; s2, enabling the temperature of the aluminum liquid to reach the temperature required by the vertical plate; s3, opening a front box drain port, blocking a liquid outlet of the front box and a liquid inlet of the front box, and cleaning a casting nozzle; s4, operating a prestress oil cylinder of the casting and rolling machine to descend so that the roll gap adjusting device is separated from the upper roll bearing box; s5, calculating a required roll gap adjustment value, and adjusting a roll gap adjustment device on the problem side of the casting and rolling machine; s6, operating the prestress oil cylinder to ascend, and enabling the casting and rolling machine to enter a rolling state by the high-pressure oil pump; s7, plugging a drain port of the front box, and opening a liquid inlet of the front box to enable liquid levels in the front box and the launder to meet the requirements of a drain board; s8, opening a liquid outlet of the front box, and producing a casting and rolling machine outlet plate; s9, recovering the temperature of the online system, measuring the plate difference, and finely adjusting the rolling force until the plate difference is qualified; the method effectively realizes the non-stop adjustment of the roll gap of the casting and rolling machine.
Description
Technical Field
The invention relates to the technical field of aluminum processing casting and rolling, in particular to a method for adjusting a roll gap of a casting and rolling machine without stopping.
Background
In the process of casting and rolling aluminum production, particularly in the process of producing aluminum by using an ultra-wide phi 1200X 2300mm inclined casting and rolling machine, the weight of a single roller without a bearing box is about 25 tons, the working pressure of a single-side pre-stress oil cylinder is about 280 bar, a roller gap adjusting device is arranged between an upper roller bearing box and a lower roller bearing box, in the normal production process, the roller gap adjusting device can not rotate a ratchet wrench under the pressure of a pressing oil cylinder and the reaction force of a rolled piece on the roller by manual operation, so that the roller gap can not be adjusted by the roller gap adjusting device in the production, and the range of adjusting the rolling force at an operating platform is limited in the normal production process of casting and rolling.
Disclosure of Invention
In order to overcome the defects in the background technology, the invention discloses a method for adjusting the roll gap of a casting and rolling machine without stopping, which effectively realizes the adjustment of the roll gap of the casting and rolling machine without stopping through the innovative design and practice of the method and solves the problems in the background technology.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
A method for adjusting the roll gap of a casting and rolling machine without stopping, comprising the following steps: s1, online measuring the same plate difference, and locking a roll gap of a casting and rolling machine with a problem side; s2, raising the temperature of an online system to enable the temperature of the aluminum liquid supplied to the front box by the casting and rolling machine to reach the temperature required by the vertical plate; s3, opening a front box drain port, respectively blocking a liquid outlet of the front box and a liquid inlet of the front box, and simultaneously clearing residual aluminum in upper and lower lips of the casting nozzle; s4, stopping the high-pressure oil pump of the casting and rolling machine, starting the common pressure oil pump, and operating and controlling the prestress oil cylinder of the casting and rolling machine to descend so as to separate the cushion block of the roll gap adjusting device from the upper roll bearing box; s5, calculating a required roll gap adjustment value through a bouncing equation or according to production experience according to the measured same-plate difference value, and then adjusting a roll gap adjustment device on the problem side of the casting and rolling machine; s6, after adjustment is completed, operating the pre-stress oil cylinder to ascend to enable a cushion block of the roll gap adjusting device to be in propping connection with an upper roll bearing box, then stopping a common oil pump, and starting a high-pressure oil pump to enable the casting and rolling machine to enter a rolling state; s7, plugging a drain port of the front box, and opening a liquid inlet of the front box to enable liquid levels in the front box and the launder to meet the requirements of a drain board; s8, opening a liquid outlet of the front box, adjusting a flow control device, and producing a casting and rolling machine outlet plate; s9, recovering the temperature of the online system, online measuring the plate difference, and fine-adjusting the rolling force until the plate difference is qualified according to the requirement.
Further, in step S1, on-line measurement means that the thickness of the plate is detected using an X-ray or ultrasonic measuring device or manually using an outside micrometer.
Further, in the step S1, the standard of pass of the cast-rolled plate is that the same plate difference is not more than 0.6% of the thickness of the middle part of the cast-rolled plate, and when the rolling force of the transmission side or the operation side is adjusted to the limit value by the operation table of the casting machine, the thickness of the transmission side or the operation side plate still cannot meet the requirement, so that the roll gap of the problem side is locked.
Further, in the step S2, the target temperatures of the casting and rolling mill refining box and the filter box are respectively set to 750 ℃ and 740 ℃, and the aluminum liquid of the launder is heated in an auxiliary way by using a natural gas flame gun, so that the temperature of the aluminum liquid of the front box reaches 730-740 ℃.
Further, in the step S3, the drain opening and the liquid outlet are respectively located at two corresponding side walls at the bottom of the front box, the inner bottom surface of the front box is obliquely arranged from the drain opening to the liquid outlet, the plug is arranged at the outer port of the drain opening, the plug is pulled out after the drain opening is opened, the inner port of the liquid outlet is provided with an inner plug, the inner plug is connected with an inner plug rod extending out of the front box, the inner plug is wrapped with rock wool or aluminum silicate paper, and before the liquid outlet is plugged by the inner plug, residual aluminum around the liquid outlet needs to be cleaned by using a small slag shovel; the liquid inlet is positioned on the side wall of the top of the front box, and a flow control frame for opening and closing the liquid inlet is arranged at the liquid inlet; cleaning the residual aluminum in the upper lip and the lower lip of the casting nozzle means that an operator on the outlet side of the casting machine uses a saw blade or other flat hooked tools to go deep into the upper lip and the lower lip to take out the light and thin residual aluminum solidified in the upper lip and the lower lip.
Further, the flow control frame comprises a transverse frame plate, a lifting rod, a buoy, a liquid inlet plug, a connecting rod and two parallel rotating rods, wherein two ends of the transverse frame plate are fixed on two side walls of the top end of the front box through a vertical frame, two ends of the two rotating rods are correspondingly hinged with corresponding ends of the connecting rod and a transverse frame plate body respectively to form a parallelogram, one end of the connecting rod, which is close to the liquid inlet, is fixedly connected with the liquid inlet plug through a vertical rod, a cantilever rod is fixed on the inner side of a rotating rod body far away from the liquid inlet plug, the middle rod body of the lifting rod is connected with the outer end of the cantilever rod in a rotating mode, and the lower end of the lifting rod is correspondingly connected with the buoy; when the liquid inlet is required to be plugged, the lifting rod is required to be lifted upwards to drive the cantilever rod to move upwards simultaneously, and then the additional cantilever rod is inserted into the lower part of the cantilever rod to be supported at the top end of the front box.
Further, in step S5, production experience refers to the experience of obtaining the plate thickness after standing the plate according to the daily adjustment of the roll gap value in combination with the set rolling force, and can be counted and tabulated in advance.
Further, in the step S5, the roll gap adjusting device changes the gap between the roll chocks on one side by adjusting the wrench to control the vertical lifting, and is attached with a scale, the height adjusting range is 5mm, and the adjusting precision is 0.01mm.
In step S5, the adjustment distance of the roll gap adjusting device is larger than the actually required height by 0.01-0.05 mm, and a space is reserved for subsequent operation.
Further, in step S9, the temperature of the aluminum liquid supplied to the front box is lowered to a normal production range, and if a slight deviation in the roll gap is found based on the measured same plate difference, the rolling force is adjusted on the casting and rolling machine table, so that the same plate difference and the problem side plate thickness are qualified.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
according to the method for adjusting the roll gap of the casting and rolling machine without stopping, disclosed by the invention, through the innovative application of the implementation method, the time for re-erecting the plate is shortened to about 2-4 hours to be several minutes for online adjustment, so that the production efficiency is greatly improved, and the waiting time for stopping is shortened;
According to the method for adjusting the roll gap of the casting and rolling machine without stopping, disclosed by the invention, the operation can be rapidly executed under the work division cooperation of a team according to the compensation requirement of the roll gap, so that the time is saved for adjusting the roll gap without stopping, the plate shape is qualified finally, and the auxiliary material cost and the loss of order delay are saved;
The method for adjusting the roll gap of the casting and rolling machine without stopping the machine disclosed by the invention is simple in design, and the operation is refined from production practice, so that the method has reference value for staff engaged in production in the current casting and rolling industry.
Drawings
FIG. 1 is a schematic diagram of an apparatus embodying the present invention;
FIG. 2 is a schematic view of the structure of the front case;
FIG. 3 is a schematic structural view of the flow control frame;
Fig. 4 is a schematic structural view of the roll gap adjusting device.
In the figure: 1. a front case; 101. a drain port; 102. a liquid outlet; 103. a liquid inlet; 2. a flow control frame; 201. a float; 202. a liquid inlet plug; 203. a lifting rod; 3. a roll gap adjusting device; 301. a cushion block; 302. wedge blocks; 303. a slide plate; 304. adjusting a wrench; 305. a ruler; 4. an inner plug; 5. a plug head; 6. a launder; 7. and casting the mouth.
Detailed Description
In the description, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., the drawings merely correspond to the drawings of the present invention, and in order to facilitate description of the present invention, it is not indicated or implied that the device or element referred to must have a specific azimuth:
A method for adjusting the roll gap of a casting machine without stopping the machine, as described in connection with figures 1 to 4, comprising the steps of:
Step one, online measuring the same plate difference, and locking a roll gap of a casting and rolling machine with a problem side; according to the requirement, the online measurement means that an X-ray or ultrasonic measuring device or an outside micrometer is used for detecting the thickness of the plate manually; in addition, the standard of qualification of the cast-rolled plate is that the same plate difference is not more than 0.6% of the thickness of the middle part of the cast-rolled plate, the average thickness of the middle part and the two side parts of the cast-rolled plate is between 6 and 7mm, the error is +/-0.2 mm, and when the rolling force of the transmission side or the operation side is regulated to the limit value by the operation table of the cast-rolling machine, the thickness of the transmission side plate or the operation side plate still can not meet the requirement, so that the roll gap of the problem side is locked;
Step two, the temperature of an online system is increased, so that the temperature of the aluminum liquid supplied to the front box 1 by the casting and rolling machine reaches the temperature required by the vertical plate; respectively setting target temperatures of a casting and rolling machine refining box and a filtering box to 750 ℃ and 740 ℃ according to the requirements, and heating up the aluminum liquid of a launder 6 with the aid of a natural gas flame gun to enable the temperature of the aluminum liquid of a front box 1 to reach 730-740 ℃;
Step three, a drain opening 101 of the front box 1 is opened, a liquid outlet 102 of the front box 1 and a liquid inlet 103 of the front box are respectively blocked, and residual aluminum in the upper lip and the lower lip of the casting nozzle 7 is simultaneously cleared; the drain opening 101 and the liquid outlet 102 are respectively positioned on two corresponding side walls at the bottom of the front box 1, the inner bottom surface of the front box 1 is arranged obliquely upwards from the drain opening 101 to the liquid outlet 102, a plug 5 is arranged at the outer port of the drain opening 101, the plug 5 is pulled out after the drain opening 101 is opened, an inner plug 4 is arranged at the inner port of the liquid outlet 102, the inner plug 4 is connected with an inner plug rod extending out of the front box 1, rock wool or aluminum silicate paper is wrapped by the inner plug 4, and residual aluminum around the liquid outlet 102 needs to be cleaned by using a small slag shovel before the liquid outlet 102 is plugged by the inner plug 4; the liquid inlet 103 is positioned on the side wall of the top of the front box, and a flow control frame 2 for opening and closing the liquid inlet is arranged at the liquid inlet 103; cleaning residual aluminum in the upper lip and the lower lip of the casting nozzle 7 means that an operator at the outlet side of the casting machine uses a saw blade or other flat hooked tools to go deep into the upper lip and the lower lip to bring out the light and thin residual aluminum solidified in the upper lip and the lower lip;
According to the requirements, the flow control frame 2 comprises a transverse frame plate, a lifting rod 203, a buoy 201, a liquid inlet plug 202, a connecting rod and two parallel rotating rods, wherein two ends of the transverse frame plate are fixed on two side walls of the top end of the front box 1 through a vertical frame, two ends of the two rotating rods are correspondingly hinged with corresponding ends of the connecting rod and a transverse frame plate body respectively to form a parallelogram, one end of the connecting rod, which is close to the liquid inlet, is fixedly connected with the liquid inlet plug 202 through a vertical rod, a cantilever rod is fixed on the inner side of the rotating rod body far away from the liquid inlet plug 202, the middle rod body of the lifting rod 203 is rotatably connected with the outer end of the cantilever rod, and the lower end of the lifting rod 203 is correspondingly connected with the buoy 201; when the liquid inlet 103 is required to be plugged, the lifting rod 203 is required to be lifted upwards to drive the cantilever rod to move upwards simultaneously, and then the additional cantilever rod is inserted into the lower part of the cantilever rod to be supported at the top end of the front box 1; when the flow control frame 2 works normally, the liquid level of the front box 1 is judged through the float 201, so that the liquid inlet plug 202 is driven to plug the liquid inlet 103;
Step four, according to the control logic of the hydraulic system of the casting and rolling machine, stopping the high-pressure oil pump of the casting and rolling machine, starting the ordinary pressure oil pump, operating and controlling the prestress oil cylinder of the casting and rolling machine to descend so as to separate the cushion block 301 of the roll gap adjusting device 3 from the upper roll bearing box, and further preparing for manually operating the roll gap adjusting device to ascend or descend;
Step five, according to the measured difference value of the same plate, calculating a required roll gap adjustment value through a bouncing equation or according to production experience, and then adjusting a roll gap adjustment device 3 on the problem side of the casting and rolling machine; the bouncing equation and the correlation factors required by calculation are preset on a computer, the production experience refers to the experience of obtaining the plate thickness after the vertical plate according to the combination of the daily adjustment roll gap value and the set rolling force, and the plate thickness can be counted in advance and compiled into a table; according to the requirement, the roll gap adjusting device 3 changes the gap between the roller bearing seats on one side by controlling the vertical lifting through the adjusting spanner 304, and is provided with the scale 305, the height adjusting range is 5mm, and the adjusting precision is 0.01mm; in addition, the adjustment distance of the roll gap adjusting device 3 is larger than the actually required height of 0.01-0.05 mm, and a space is reserved for the subsequent operation;
Step six, after the adjustment is completed, operating the prestress oil cylinder to rise according to the control logic of the casting machine, enabling the cushion block 301 of the roll gap adjusting device 3 to be propped against the upper roll bearing box, stopping the common oil pump, and starting the high-pressure oil pump to enable the casting machine to enter a rolling state;
step seven, the drain opening 101 of the front box 1 is plugged, and the liquid inlet 103 of the front box 1 is opened, so that the liquid levels in the front box 1 and the launder 6 meet the requirement of a drain board;
step eight, opening a liquid outlet 102 of the front box 1, adjusting a flow control device, and producing a casting and rolling machine outlet plate; the actions described in the seventh and eighth steps are the same as the operation of discharging the outflow plate when the rolling mill stand is operated, and the liquid outlet 102 is still in a blocking state when the seventh step is operated.
Step nine, recovering the temperature of an online system, online measuring the plate difference, and fine-adjusting the rolling force until the plate difference is qualified according to the requirement; if necessary, in step S9, the temperature of the aluminum liquid supplied to the front box 1 is lowered to the normal production range, and if the difference in the same plate is detected, a slight deviation in the roll gap is found, and the rolling force is adjusted on the casting machine table, so that the difference in the same plate and the plate thickness on the problem side are qualified.
According to the invention, through the innovative application of the implementation method, the time for re-erecting the plate is shortened to about 2-4 hours to a few minutes for online adjustment, so that the production efficiency is greatly improved, and the waiting time for shutdown is shortened; meanwhile, the compensation value of the required roll gap can be obtained rapidly through auxiliary calculation of a computer or summary of production experience, time is saved for non-stop adjustment of the roll gap under the cooperation of division of a team, the plate shape is qualified finally, and the auxiliary material cost and the order delay loss are saved; the implementation method is refined from practice, is completed through team division cooperation, has good implementation effect, and has great significance on the current micro-profit aluminum casting industry.
The invention has not been described in detail in the prior art, and it is apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the above-described embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. A method for adjusting the roll gap of a casting and rolling machine without stopping is characterized by comprising the following steps: comprises the following steps:
s1, online measuring the same plate difference, and locking a roll gap of a casting and rolling machine with a problem side;
S2, raising the temperature of an online system to enable the temperature of the aluminum liquid supplied to the front box (1) by the casting and rolling machine to reach the temperature required by the vertical plate;
S3, opening a drain opening (101) of the front box (1), respectively blocking a liquid outlet (102) of the front box (1) and a liquid inlet (103) of the front box, and simultaneously cleaning out residual aluminum in upper and lower lips of the casting nozzle (7);
S4, stopping a high-pressure oil pump of the casting and rolling machine, starting a common pressure oil pump, and operating and controlling a prestress oil cylinder of the casting and rolling machine to descend so that a cushion block (301) of the roll gap adjusting device (3) is separated from an upper roll bearing box;
S5, calculating a required roll gap adjustment value through a bouncing equation or according to production experience according to the measured same-plate difference value, and then adjusting a roll gap adjustment device (3) on the problem side of the casting and rolling machine;
S6, after adjustment is completed, operating a prestress oil cylinder to ascend, enabling a cushion block (301) of a roll gap adjusting device (3) to be propped against an upper roll bearing box, stopping a common oil pump, and starting a high-pressure oil pump to enable a casting and rolling machine to enter a rolling state;
S7, plugging a drain opening (101) of the front box (1), and opening a liquid inlet (103) of the front box (1) to enable liquid levels in the front box (1) and the launder (6) to meet the requirement of a drain plate;
S8, opening a liquid outlet (102) of the front box (1), adjusting a flow control device, and producing a casting and rolling machine outlet plate;
s9, recovering the temperature of the online system, online measuring the plate difference, and fine-adjusting the rolling force until the plate difference is qualified according to the requirement.
2. The method for adjusting the roll gap of a casting and rolling machine without stopping according to claim 1, wherein the method comprises the following steps: in step S1, online measurement refers to detecting the thickness of the plate using an X-ray or ultrasonic measuring device or manually using an outside micrometer.
3. The method for adjusting the roll gap of a casting and rolling machine without stopping according to claim 1, wherein the method comprises the following steps: in the step S1, the standard that the cast-rolled plate is qualified is that the same plate difference is not more than 0.6% of the thickness of the middle part of the cast-rolled plate, and when the rolling force of the transmission side or the operation side is regulated to the limit value by the casting-rolling machine operation table, the thickness of the transmission side or the operation side plate still cannot meet the requirement, so that the roll gap of the problem side is locked.
4. The method for adjusting the roll gap of a casting and rolling machine without stopping according to claim 1, wherein the method comprises the following steps: in the step S2, the target temperatures of a casting and rolling mill refining box and a filtering box are respectively set to 750 ℃ and 740 ℃, and a natural gas flame gun is used for heating up the aluminum liquid of a launder (6) in an auxiliary way, so that the temperature of the aluminum liquid of a front box (1) reaches 730-740 ℃.
5. The method for adjusting the roll gap of a casting and rolling machine without stopping according to claim 1, wherein the method comprises the following steps: in the step S3, the drain opening (101) and the liquid outlet (102) are respectively positioned at two corresponding side walls at the bottom of the front box (1), the inner bottom surface of the front box (1) is obliquely arranged upwards from the drain opening (101) to the liquid outlet (102), a plug (5) is arranged at the outer port of the drain opening (101), the plug (5) is required to be pulled out when the drain opening (101) is opened, an inner plug (4) is arranged at the inner port of the liquid outlet (102), the inner plug (4) is connected with an inner plug rod extending out of the front box (1), rock wool or aluminum silicate paper is wrapped by the inner plug (4), and residual aluminum around the liquid outlet (102) is required to be cleaned by using a small slag shovel before the liquid outlet (102) is plugged by the inner plug (4); the liquid inlet (103) is positioned on the side wall of the top of the front box, and a flow control frame (2) for opening and closing the liquid inlet is arranged at the liquid inlet (103); cleaning residual aluminum in the upper lip and the lower lip of the casting nozzle (7) means that an operator on the outlet side of the casting machine uses a saw blade or other flat hooked tools to go deep into the upper lip and the lower lip to take out the solidified light and thin residual aluminum.
6. The method for adjusting the roll gap of a casting and rolling machine without stopping according to claim 5, wherein the method comprises the following steps: the flow control frame (2) comprises a transverse frame plate, a lifting rod (203), a buoy (201), a liquid inlet plug (202), a connecting rod and two parallel rotating rods, wherein two ends of the transverse frame plate are fixed on two side walls of the top end of a front box (1) through a vertical frame, two ends of the two rotating rods are correspondingly hinged with corresponding ends of the connecting rod and a transverse frame plate body respectively to form a parallelogram, one end of the connecting rod, which is close to a liquid inlet, is fixedly connected with the liquid inlet plug (202) through a vertical rod, a cantilever rod is fixed on the inner side of a rotating rod body, which is far away from the liquid inlet plug (202), a middle rod body of the lifting rod (203) is rotatably connected with the outer end of the cantilever rod, and the lower end of the lifting rod (203) is correspondingly connected with the buoy (201); when the liquid inlet (103) is required to be plugged, the lifting rod (203) is required to be lifted upwards to drive the cantilever rod to move upwards simultaneously, and then the additional cantilever rod is inserted into the lower part of the cantilever rod to be supported at the top end of the front box (1).
7. The method for adjusting the roll gap of a casting and rolling machine without stopping according to claim 1, wherein the method comprises the following steps: in the step S5, the production experience refers to the experience of obtaining the plate thickness after the vertical plates according to the combination of the daily adjustment roll gap value and the set rolling force, and the plate thickness needs to be counted in advance and compiled into a table.
8. The method for adjusting the roll gap of a casting and rolling machine without stopping according to claim 1, wherein the method comprises the following steps: in the step S5, the roll gap adjusting device (3) changes the gap between the roller bearing seats on one side by controlling the vertical lifting through an adjusting spanner (304), and is provided with a scale (305), the height adjusting range is 5mm, and the adjusting precision is 0.01mm.
9. The method for adjusting the roll gap of a casting and rolling machine without stopping according to claim 1, wherein the method comprises the following steps: in the step S5, the adjustment distance of the roll gap adjusting device (3) is larger than the actually required height by 0.01-0.05 mm, and a space is reserved for the subsequent operation.
10. The method for adjusting the roll gap of a casting and rolling machine without stopping according to claim 1, wherein the method comprises the following steps: in step S9, the temperature of the aluminum liquid supplied to the front box 1 is reduced to a normal production range, if the difference between the same plate and the plate is found, the rolling gap is still deviated, and the rolling force is adjusted on the casting and rolling machine operation table, so that the difference between the same plate and the plate on the problem side are qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210201431.9A CN114535520B (en) | 2022-03-03 | 2022-03-03 | Method for adjusting roll gap of casting and rolling machine without stopping |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210201431.9A CN114535520B (en) | 2022-03-03 | 2022-03-03 | Method for adjusting roll gap of casting and rolling machine without stopping |
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| Publication Number | Publication Date |
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| CN114535520A CN114535520A (en) | 2022-05-27 |
| CN114535520B true CN114535520B (en) | 2024-05-03 |
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| CN202210201431.9A Active CN114535520B (en) | 2022-03-03 | 2022-03-03 | Method for adjusting roll gap of casting and rolling machine without stopping |
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