CN113624114A - Casting blank diamond shape measuring device and method and slab diamond shape measuring device and method - Google Patents
Casting blank diamond shape measuring device and method and slab diamond shape measuring device and method Download PDFInfo
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- CN113624114A CN113624114A CN202110859742.XA CN202110859742A CN113624114A CN 113624114 A CN113624114 A CN 113624114A CN 202110859742 A CN202110859742 A CN 202110859742A CN 113624114 A CN113624114 A CN 113624114A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
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Abstract
The invention discloses a measuring device for rhombus shape of a casting blank, relates to the technical field of steel making, and solves the technical problem of product defects caused by overlarge deformation of the casting blank in the production process in the related technology. The device comprises a standard frame plate and a measuring tool, wherein the standard frame plate is arranged in a rectangular shape, the standard frame plate is provided with a preset length and a preset width, the preset length and the preset width correspond to the standard length and the standard width of the cross section of the casting blank to be measured, and the measuring tool is used for measuring the diamond amount after the standard frame plate is attached to the cross section of the casting blank to be measured and one corner of the cross section of the casting blank to be measured is aligned with one corner of the standard frame plate. The rhombus amount of the casting blank is conveniently and quickly measured, the rhombus amount reflects the degree of variation of the rhombus of the casting blank, guidance is provided for taking corresponding measures for solving the problems of the casting blank in the follow-up process, and the method is favorable for reducing the safety risk in the production process and improving the product quality.
Description
Technical Field
The invention relates to the technical field of steel making, in particular to a casting blank rhombus measuring device and method and a slab rhombus measuring device and method.
Background
In the continuous casting production process, the casting blank produced by the casting machine inevitably deforms, such as bulging, square billet stripping, slab rhombus and the like. Bleed-out is caused when the deformation is serious; when the deformation is large, the corner part is folded or one side of the casting blank rolled is tilted during rolling, so that the surface of the casting blank is scratched, and defects are generated. Therefore, a detection means for grasping the deformation amount of the casting blank in time is required.
Disclosure of Invention
The application provides a casting blank rhombus volume measuring device has solved among the correlation technique because the too big technical problem who leads to having the product defect of casting blank deformation.
The application provides a casting blank rhombus measuring device, including standard frame plate and measuring tool, the standard frame plate is the rectangle setting, the standard frame plate has length of predetermineeing and predetermines the width, predetermine length and predetermine the width and the standard length in the cross-section of the casting blank that awaits measuring, standard width size corresponds equally, measuring tool is used for standard frame plate to laminate in the cross-section of the casting blank that awaits measuring and the measuring rhombus volume after the cross-section one corner of the casting blank that awaits measuring aligns with the one corner of standard frame plate.
Optionally, the casting blank to be measured comprises a square blank, and the preset length and the preset width are equal to the standard side length of the cross section of the square blank.
Optionally, the measuring tool includes measuring a residual angle after one corner of the casting blank to be measured is aligned with one corner of the standard frame plate and a protruding part of the narrow surface of the casting blank.
Optionally, the measuring means comprises a vernier caliper.
Optionally, a first handle is fixedly mounted on the standard frame plate, one side of the standard frame plate is used for being attached to the cross section of the casting blank to be tested, and the first handle is mounted on the other side of the standard frame plate.
A method for measuring the diamond shape of a casting blank comprises the following steps:
cutting the casting blank in the casting steady state to obtain a casting blank to be tested, and idling to reduce the temperature of the casting blank to be tested;
vertically erecting a casting blank to be tested, wherein the section of the casting blank to be tested is positioned on the top side;
and (3) aligning one corner of the standard frame plate with one corner of the section of the casting blank to be measured by using a diamond-shaped quantity measuring device of the casting blank, adjusting the standard frame plate by taking one surface of the casting blank to be measured as a reference, measuring the residual angle and the protruding part of the narrow surface of the casting blank by using a measuring tool, and recording diamond-shaped quantity and bulging quantity.
A slab rhombus measuring device, includes:
the width of the rectangular frame plate is equal to the standard width of the section of the plate blank to be detected;
the movable frame is movably arranged on the rectangular frame plate in a penetrating mode, the moving direction is consistent with the length direction of the rectangular frame plate, and the width of the movable frame is equal to the standard thickness of the plate blank to be detected;
and the measuring tool is used for measuring the diamond amount after the rectangular frame plate is attached to the section of the plate blank to be measured and one corner of the section of the rectangular frame plate is aligned with one corner of the rectangular frame plate.
Optionally, a second handle is fixedly mounted on the rectangular frame plate, one side of the rectangular frame plate is used for being attached to the cross section of the plate blank to be detected, and the second handle is mounted on the other side of the rectangular frame plate.
Optionally, the measuring tool comprises a vernier caliper;
the vernier caliper comprises a measuring residual angle and a protruding part of a narrow side of the plate blank after one corner of the plate blank to be measured is aligned with one corner of the rectangular frame plate.
A slab rhombus volume measuring method adopts the slab rhombus volume measuring device, and comprises the following steps:
cutting the cast stable slab to obtain a to-be-detected slab, and idling to reduce the temperature of the to-be-detected slab;
vertically erecting a plate blank to be detected, wherein the section of the plate blank to be detected is positioned at the top side;
the method comprises the steps of using a slab rhombus measuring device, aligning one corner of a rectangular frame plate with one corner of the cross section of a slab to be measured, adjusting the rectangular frame plate by taking one side of the slab to be measured as a reference, moving a movable frame based on the standard length of the cross section of the slab to be measured, measuring the residual corners and the protruding parts of the narrow surface of the slab by using a measuring tool, and recording rhombus amount and bulging amount.
The beneficial effect of this application is as follows: the application provides a diamond-shaped quantity measuring device for a casting blank, which utilizes a standard frame plate and a measuring tool to sample the casting blank with steady production process, for example, cutting, sampling and measuring the diamond amount, specifically, measuring the section of a casting blank, using a pre-prefabricated standard frame plate which has the length and width parameters of the standard section of the casting blank with the specification, placing the standard frame plate on the section of the casting blank to be measured, aligning one corner of the section of the casting blank to be measured with one corner of the standard frame plate, aligning one side of the section of the casting blank to be measured with one side of the standard frame plate under a better condition, measuring the length of the protruded part to measure the diamond amount, the rhombus amount is used for reflecting the rhombus variation degree of the casting blank, so that guidance is provided for taking corresponding measures for solving the problems of the casting blank in the follow-up process, and the safety risk in the production process is reduced and the product quality is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a top view of a standard frame plate of a casting blank diamond shape measurement device provided by the present application;
FIG. 2 is a front view of FIG. 1;
fig. 3 is a top view of a rectangular frame plate and a movable frame of a slab rhombus measuring device provided in the present application;
fig. 4 is a schematic view illustrating a movable frame movably disposed on a rectangular frame plate according to the present invention.
The attached drawings are marked as follows: 100-standard frame plate, 110-preset length, 120-preset width, 200-first handle, 300-rectangular frame plate, 400-movable frame and 500-second handle.
Detailed Description
The embodiment of the application provides a casting blank diamond shape measuring device, and solves the technical problem that product defects exist in the production process due to overlarge deformation of a casting blank in the related technology.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
the utility model provides a casting blank rhombus measuring device, includes standard frame plate and measuring tool, and standard frame plate is the rectangle setting, and standard frame plate has length of predetermineeing and predetermines the width, predetermines length and predetermines the width and correspond equally with standard length, the standard width size in the cross-section of the casting blank that awaits measuring, and measuring tool is used for standard frame plate to laminate in the cross-section of the casting blank that awaits measuring and the measuring rhombus volume of the one corner alignment back of the cross-section one corner of the casting blank that awaits measuring and standard frame plate.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example 1
Referring to fig. 1 and 2, the present embodiment provides a measuring apparatus for measuring a diamond shape of a casting blank, including a standard frame plate 100 and a measuring tool, where the standard frame plate 100 is rectangular, the standard frame plate 100 has a preset length 110 and a preset width 120, the preset length 110 and the preset width 120 are equal to a standard length and a standard width of a cross section of the casting blank to be measured, and the measuring tool is used for measuring the diamond shape after the standard frame plate 100 is attached to the cross section of the casting blank to be measured and one corner of the cross section of the casting blank to be measured is aligned with one corner of the standard frame plate 100. The cross section of the cast slab may also be referred to as a cross section of the cast slab, and is a cross section formed by cutting along the length direction of the cast slab.
The method comprises the steps of sampling a casting blank with a steady production process by using a standard frame plate 100 and a measuring tool, for example, cutting, measuring a diamond amount after sampling, specifically, measuring the section of the casting blank, placing the standard frame plate 100 on the section of the casting blank to be measured by using the standard frame plate 100 prefabricated in advance, wherein the standard frame plate 100 has length and width parameters of the standard section of the casting blank with the specification, aligning one corner of the section of the casting blank to be measured with one corner of the standard frame plate 100, aligning one side of the section of the casting blank to be measured with one side of the standard frame plate 100 under a better condition, measuring the length of a protruded part, measuring the diamond amount, reflecting the variation degree of the casting blank by using the diamond amount, providing guidance for taking corresponding measures for solving problems in the subsequent casting blank, and being beneficial to reducing safety risks in the production process and improving the product quality.
The method comprises the step of sampling a casting blank in a stable production process by cutting, wherein the length of the whole section of the produced casting blank is 300-500mm, and the size cannot be too short so as to avoid the defect of overlarge deformation caused by cooling shrinkage of the casting blank.
The cutting position of the casting blank is the casting blank in the casting steady state, and the casting blank comprises a double-flow casting blank. In the production process, the casting blank is sequentially processed by a steel ladle, a crystallizer, a bending section, a fan-shaped section, a tension leveler and a winding machine, and the sampled casting blank is a horizontal section casting blank acted by the tension leveler.
The casting blank to be detected can be a square blank, a slab blank and the like. When the casting blank to be measured is a square blank, the preset length 110 and the preset width 120 are both equal to the standard side length of the cross section of the square blank, and at this time, the standard frame plate 100 is a square frame plate. For example, specifications of 130 × 130mm, 160 × 160mm, and the like may be used.
Alternatively, as shown in fig. 1, the standard frame plate 100 is provided in the form of a square frame, i.e. the central major area of the frame plate is hollow for material handling, measurement, handling, storage, etc.
When the casting blank to be measured is a slab, the standard frame plate 100 is arranged in a rectangular shape and matches the standard size of the cross section of the slab to be measured.
Optionally, the measuring tool includes measuring a residual angle after one corner of the casting blank to be measured is aligned with one corner of the standard frame plate 100 and a protruding part of the narrow surface of the casting blank, and recording the slip (diamond amount when measuring the slab) and the bulging amount. The square deviation is also called rhomboid change and comprises the difference of diagonal lines and the difference of side length before and after rhomboid change.
Alternatively, the measuring means comprises a vernier caliper, but other forms of tool, such as a ruler, may be used.
Optionally, referring to fig. 1 and fig. 2, a first handle 200 is fixedly installed on the standard frame plate 100, one side of the standard frame plate 100 is used for being attached to a cross section of a casting blank to be tested, and the first handle 200 is installed on the other side of the standard frame plate 100. Wherein, the standard frame plate 100 and the first handle 200 can be made of stainless steel material. The standard frame plate 100 is moved through the first handle 200, and the position of the standard frame plate 100 can be finely adjusted through the first handle 200, so that one corner of the standard frame plate 100 is aligned with one corner of a casting blank to be tested, the operation is convenient, the integral structure is simple, the manufacturing is simple, and the popularization is good.
Example 2
The embodiment provides a method for measuring a diamond shape of a casting blank, which adopts the device for measuring the diamond shape of the casting blank in the embodiment 1, and specifically comprises the following steps:
cutting a casting blank in a casting stable state to obtain a casting blank to be tested, and idling to reduce the temperature of the casting blank to be tested, wherein the specific temperature range is based on the approach and measurement of operators;
hoisting the casting blank to be measured to a measuring position through a magnetic disc crane, vertically erecting the casting blank to be measured, and waiting for measurement when the section of the casting blank to be measured is positioned at the top side;
and (3) aligning one corner of the standard frame plate 100 with one corner of the section of the casting blank to be measured by using a diamond-shaped quantity measuring device, adjusting the standard frame plate 100 by taking one surface of the casting blank to be measured as a reference, measuring the residual angle and the protruding part of the narrow surface of the casting blank by using a measuring tool, and recording diamond-shaped quantity and bulging quantity.
Wherein one person is typically required to hold the standard bezel 100 in hand for alignment and another person is required to take the relevant parameters using a measurement tool.
After the measurement is finished, hoisting the measured casting blank to a scrap steel bucket through a magnetic disc crane; the technician takes corresponding measures according to the measurement results, for example, adjusting the original process parameters.
Example 3
The embodiment provides a slab rhombus measuring device, including rectangular frame board 300, movable frame 400 and measuring tool, rectangular frame board 300's width equals with the cross-section standard width of the slab that awaits measuring, movable frame 400 is movably worn to locate rectangular frame board 300, moving direction is unanimous with rectangular frame board 300's length direction, movable frame 400's width equals with the standard thickness of the slab that awaits measuring, measuring tool is used for rectangular frame board 300 to laminate in the cross-section of the slab that awaits measuring and measuring rhombus volume behind rectangular frame board 300's the cross-section one corner and the one corner of rectangular frame board 300 align.
The present embodiment is different from embodiment 1 in that, when sampling and measuring a slab, the standard frame plate 100 in embodiment 1 is designed in a form of a rectangular frame plate 300 with a movable frame 400 so as to be adapted to the characteristic of a slab having a large cross-sectional aspect ratio.
Referring to fig. 3, the length of the rectangular frame 300 represents the minimum length of the cross section of the slab to be measured, and the movable frame 400 increases the measurement range of the slab diamond shape measurement device.
Optionally, a plurality of slab diamond-shaped measuring devices with different measuring ranges are arranged to form a set of measuring system, so that material taking, manufacturing and mutual cooperation are facilitated. For example, two slab rhomboid measuring devices are arranged according to the specification that the slab cross-sectional dimension is 230 x (800-2150) mm, one of the measuring ranges is 800-1300 mm, the other is 1300-2150 mm, and the length dimension of each rectangular frame plate 300 is taken as the lower measuring limit, so that the slab rhomboid measuring device with the adjustable length is manufactured.
The slab rhombus measuring device of this embodiment also needs to correspond the device according to different casting blank size production, has used repeatedly, with low costs, convenient to use reliable advantage. The rhombus amount of the plate blank in the production process is measured, and the rhombus degree of variation of the plate blank is reflected by the rhombus amount, so that guidance is provided for taking corresponding measures for solving the problems of the plate blank in the follow-up process, and the method is favorable for reducing the safety risk in the production process and improving the product quality.
Referring to fig. 4, fig. 4 provides a structure form in which the movable frame 400 is movably disposed on the rectangular frame plate 300, specifically, the long beams of the rectangular frame plate 300 are all disposed in a U shape and the openings are matched with each other, and the long strip of the movable frame 400 is inserted into the U-shaped groove.
In this scheme, the rectangle framed panel 300 is laminated in the cross-section of the slab that awaits measuring and the back is aligned to the cross-section one corner of rectangle framed panel 300 and the one corner of rectangle framed panel 300, removes movable frame 400, and the one corner of another short side aligns with the one corner of movable frame 400, measures through measuring tool, including measuring surplus angle and slab leptoprosopy protruding part. Where the remaining angle refers to an angle where the remaining is not yet aligned.
The measuring tool comprises a vernier caliper, and other size measuring tools such as a ruler can also be adopted.
Optionally, referring to fig. 3, a second handle 500 is fixedly mounted on the rectangular frame plate 300, one side of the rectangular frame plate 300 is used for being attached to the cross section of the slab to be tested, and the second handle 500 is mounted on the other side of the rectangular frame plate 300. The rectangular frame plate 300, the movable frame 400 and the second handle 500 may be made of stainless steel. The second handle 500 is held by hand to perform displacement adjustment, so that the device is convenient and fast to use and align.
Wherein the second handle 500 is disposed in the same manner as the first handle 200 of embodiment 1, and the drawings are similar, so that the drawings are not repeated.
Example 4
The embodiment provides a method for measuring a rhombus-shaped quantity of a plate blank, which adopts the device for measuring the rhombus-shaped quantity of the plate blank in the embodiment 3, and specifically comprises the following steps:
cutting the cast stable slab to obtain a to-be-measured slab, and idling to reduce the temperature of the to-be-measured slab, wherein the specific temperature range is subject to approaching and measurement by an operator;
hoisting the casting blank to be measured to a measuring position through a magnetic disc crane, vertically erecting a plate blank to be measured, and waiting for measurement, wherein the section of the plate blank to be measured is positioned at the top side;
the slab rhombus measuring device is applied, one corner of the rectangular frame plate 300 is aligned with one corner of the cross section of the slab to be measured, one side of the slab to be measured is used as a reference to adjust the rectangular frame plate 300, the movable frame 400 is moved based on the standard length of the cross section of the slab to be measured, the remaining corners and the protruding parts of the narrow surface of the slab are measured by using a measuring tool, and the rhombus amount and the bulging amount are recorded.
Wherein one person is typically required to hold the rectangular bezel 300 in hand for alignment and another person is required to take relevant parameters using a measurement tool.
After the measurement is finished, hoisting the measured casting blank to a scrap steel bucket through a magnetic disc crane; the technician takes corresponding measures according to the measurement results, for example, adjusting the original process parameters.
Wherein, the rectangle framed panel 300 is laminated in the cross-section of the slab that awaits measuring and the back is aligned to the cross-section one corner of rectangle framed panel 300 and the one corner of rectangle framed panel 300, removes movable frame 400, aligns to the one corner of another short side and movable frame 400, measures through measuring tool, including measuring surplus angle and slab narrow face salient position. Where the remaining angle refers to an angle where the remaining is not yet aligned.
In a preferred manner, a short side of the cross-section of the slab to be tested can be initially aligned with one side of the rectangular frame plate 300, i.e. with both corners. In the method, the length-width ratio of the slab is far larger than 1, so that the actual width variation of the cross section of the slab is small when the rhombus transformation occurs to the slab, and therefore the variation of the cross section width of the slab is ignored.
It should be understood that, in general, the slab rhombus shape measuring device in the method and embodiment 3 only satisfies the measurement of the rhombus shape, and in addition, a meter ruler and other tools are needed to be assisted to measure the actual length of the cross section of the slab to be measured in the first step, if the actual length of the cross section is too large, it is directly determined that the casting blank has a large defect, and the redundant rhombus shape measurement is not needed.
By the method, the diamond-shaped quantity condition of the plate blank is conveniently obtained, technicians can conveniently adopt corresponding measures according to the problems of the plate blank, safety risks in the production process are favorably reduced, and the product quality is improved.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a casting blank rhombus volume measuring device which characterized in that includes:
the standard frame plate is rectangular and has a preset length and a preset width, and the preset length and the preset width are correspondingly equal to the standard length and the standard width of the section of the casting blank to be detected;
and the measuring tool is used for measuring the diamond amount after the standard frame plate is attached to the section of the casting blank to be measured and one corner of the section of the casting blank to be measured is aligned with one corner of the standard frame plate.
2. The casting blank diamond shape measurement device according to claim 1, wherein the casting blank to be measured comprises a square blank, and the preset length and the preset width are both equal to a standard side length of a cross section of the square blank.
3. The apparatus of claim 2, wherein the measuring means includes means for measuring a residual angle of the ingot after aligning one corner of the ingot with one corner of the standard frame plate and a protrusion of the ingot.
4. The apparatus of any of claims 1 to 3, wherein the measuring tool comprises a vernier caliper.
5. The casting blank diamond shape measuring device according to claim 1, wherein a first handle is fixedly installed on the standard frame plate, one side of the standard frame plate is used for being attached to the cross section of the casting blank to be measured, and the first handle is installed on the other side of the standard frame plate.
6. A method for measuring a rhomboid shape of a cast slab, which is characterized by using the rhomboid shape measuring device according to any one of claims 1 to 5, and comprises the following steps:
cutting the casting blank in the casting steady state to obtain the casting blank to be tested, and idling to reduce the temperature of the casting blank to be tested;
vertically erecting the casting blank to be tested, wherein the section of the casting blank to be tested is positioned on the top side;
and applying the diamond-shaped quantity measuring device to align one corner of the standard frame plate with one corner of the cross section of the casting blank to be measured, adjusting the standard frame plate by taking one surface of the casting blank to be measured as a reference, measuring the residual angle and the protruding part of the narrow surface of the casting blank by using the measuring tool, and recording the diamond-shaped quantity and the bulging quantity.
7. A slab rhombus measuring device, its characterized in that includes:
the width of the rectangular frame plate is equal to the standard width of the section of the plate blank to be detected;
the movable frame is movably arranged in the rectangular frame plate in a penetrating mode, the moving direction of the movable frame is consistent with the length direction of the rectangular frame plate, and the width of the movable frame is equal to the standard thickness of the plate blank to be detected;
and the measuring tool is used for fitting the rectangular frame plate to the cross section of the plate blank to be measured and measuring the diamond amount after one corner of the cross section of the rectangular frame plate is aligned with one corner of the rectangular frame plate.
8. The slab rhombus shape measuring device of claim 7, characterized in that a second handle is fixedly mounted on the rectangular frame plate, one side of the rectangular frame plate is used for fitting with the cross section of the slab to be measured, and the second handle is mounted on the other side of the rectangular frame plate.
9. A slab diamond shape measurement apparatus according to claim 7, wherein the measurement tool comprises a vernier caliper;
the vernier caliper comprises a measuring residual angle and a protruding part of a narrow side of the plate blank after one corner of the plate blank to be measured is aligned with one corner of the rectangular frame plate.
10. A slab rhombus measuring method, characterized in that the slab rhombus measuring device of any one of claims 7-9 is used, comprising:
cutting the cast stable slab to obtain the slab to be tested, and idling to reduce the temperature of the slab to be tested;
vertically erecting the plate blank to be detected, wherein the section of the plate blank to be detected is positioned at the top side;
use slab rhombus measuring device will the one corner of rectangle framed panel with the cross-section one corner of the slab that awaits measuring aligns, and assist with the one side of the slab that awaits measuring adjusts as the benchmark rectangle framed panel, and removes the movable frame with the cross-section standard length of the slab that awaits measuring is accurate, recycles measuring tool measures surplus angle and slab leptoprosopy protruding position to record rhombus volume and drum tripe volume.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110859742.XA CN113624114A (en) | 2021-07-28 | 2021-07-28 | Casting blank diamond shape measuring device and method and slab diamond shape measuring device and method |
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| CN202110859742.XA CN113624114A (en) | 2021-07-28 | 2021-07-28 | Casting blank diamond shape measuring device and method and slab diamond shape measuring device and method |
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| CN212567220U (en) * | 2020-08-21 | 2021-02-19 | 建龙北满特殊钢有限责任公司 | Special tool capable of measuring thickness of casting blank under soft reduction on line |
| CN212779001U (en) * | 2020-08-10 | 2021-03-23 | 柳州钢铁股份有限公司 | On-line measuring special tool for stripping small square billet |
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- 2021-07-28 CN CN202110859742.XA patent/CN113624114A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204807043U (en) * | 2015-07-16 | 2015-11-25 | 山东钢铁股份有限公司 | Continuous casting steel billet measuring device |
| CN205593443U (en) * | 2016-03-04 | 2016-09-21 | 新疆八一钢铁股份有限公司 | Sunken degree measuring tool of continuous slab casting base leptoprosopy |
| CN208847095U (en) * | 2018-09-03 | 2019-05-10 | 中车唐山机车车辆有限公司 | A kind of detecting tool for rail vehicle |
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