CN113102948A - Base for an aligner and method of manufacture - Google Patents
Base for an aligner and method of manufacture Download PDFInfo
- Publication number
- CN113102948A CN113102948A CN202110392592.6A CN202110392592A CN113102948A CN 113102948 A CN113102948 A CN 113102948A CN 202110392592 A CN202110392592 A CN 202110392592A CN 113102948 A CN113102948 A CN 113102948A
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- base
- tempering
- steel
- calibrator
- rough
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- 238000000034 method Methods 0.000 title claims description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 238000005496 tempering Methods 0.000 claims description 24
- 238000003754 machining Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 14
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 11
- 230000035882 stress Effects 0.000 claims description 11
- 230000032683 aging Effects 0.000 claims description 6
- 238000007590 electrostatic spraying Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005422 blasting Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- General Physics & Mathematics (AREA)
- Sampling And Sample Adjustment (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a base for a calibrator, wherein two calibration blocks are arranged at the upper end of the base along a first direction, and the base is made of high-precision steel. According to the invention, the base is made of high-precision steel, so that the base has the advantages of high-precision steel and light weight, and the whole calibrator can be used and moved more conveniently. In addition, high-precision steel can also enable the precision of the base to be higher due to higher mechanical property of the high-precision steel, so that the accuracy of the calibrator can be improved.
Description
Technical Field
The invention relates to the field of precision measurement, in particular to a base for a calibrator and a manufacturing method.
Background
The calibrator is a measuring tool for precisely measuring whether the actual length of a product is the same as its preset length. The existing calibrator comprises a base and two measuring blocks arranged on the base, wherein a first distance value is kept between the two measuring blocks, and the effect of product calibration is realized through the comparison between the first distance value and the product length. However, the existing base is made of solid cast iron, so that the weight of the whole base is large, and the whole calibrator is inconvenient to move and use. Furthermore, the cast iron, due to its mechanical properties, is not so high that the first distance value between two measuring blocks located thereon may vary, thereby making the calibrator less accurate.
Disclosure of Invention
In order to overcome the defects in the prior art, embodiments of the present invention provide a base for an aligner and a manufacturing method thereof, which are used to solve the above-mentioned problems of heavy weight and low accuracy.
The embodiment of the application discloses: the utility model provides a base for calibrator, two calibration blocks are installed along the first direction to the base upper end, and the material of base adopts the high accuracy steel.
Specifically, the method comprises the following steps: a base extending in a first direction; the support leg is arranged at the lower end of the base; the two positioning blocks are mounted at the upper end of the base along a first direction, and each positioning block is fixedly connected with the calibration block, so that a first distance value is kept between the calibration blocks.
The embodiment of the application also discloses a manufacturing method of the base for the calibrator, which comprises the following steps: tempering the rough steel to obtain a base; carrying out size processing on the base; tempering the base in a steam atmosphere to generate ferroferric oxide attached to the surface of the base, thereby obtaining the base made of the high-precision steel material.
Specifically, in the step of tempering the base in a steam atmosphere to generate ferroferric oxide attached to the surface of the base so as to obtain the base made of high-precision steel material, the tempering reaction temperature is 500-600 ℃, the reaction time is 2 hours, and then the temperature is kept for 2 hours.
Specifically, before the step of tempering the rough steel to obtain the base, the rough steel is subjected to primary vibration aging treatment, so that residual stress in the rough steel is eliminated.
Specifically, after the step of tempering the rough steel to obtain the base, shot blasting is performed on the base, so that oxide skin in the base is removed.
Specifically, in the step of "performing dimensional processing on the base", rough machining and finish machining are included; rough machining determines the basic size of the base; finish machining is used for improving the dimensional accuracy of the base.
Specifically, after rough machining, the method comprises the following steps: carrying out secondary vibration aging treatment on the base so as to eliminate the residual stress of the base after rough machining; and (4) quenching and tempering the base so as to improve the performance of the base.
Specifically, after the step of tempering the base in a steam atmosphere to generate ferroferric oxide attached to the surface of the base so as to obtain the base made of high-precision steel material, the plastic powder is sprayed on the base by using an electrostatic spraying process.
Specifically, after the step of spraying the molding powder on the base by using an electrostatic spraying process, the base is processed by using a fine grinding process, so that the precision and the roughness of the base are ensured.
The invention has the following beneficial effects:
1. through using high accuracy steel preparation base to make the base can have the lightweight advantage of high accuracy steel, thereby can make the use and the removal of whole calibrator more convenient.
2. High-precision steel can also make the precision of base higher because its mechanical properties are higher to can increase the accuracy of calibrator.
3. Can make the base work under the environment that has certain corrosivity, increase the use scene of base, in addition, also make the base wear-resisting more.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a calibrator in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a base in an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a method for manufacturing a base for an aligner according to an embodiment of the present invention;
reference numerals of the above figures: 1. a base; 11. a base; 12. a support leg; 13. positioning blocks; 2. and (5) calibrating the block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 2, the base for the calibrator of the present embodiment includes:
and a base 11, wherein the base 11 may extend in a first direction, so that two calibration blocks 2 may be installed on the upper end of the base 1 in the first direction. The first direction may be a width direction of the paper surface in fig. 1, and from left to right. Of course, in other alternative embodiments, the first direction may be adjusted according to actual needs. The base 11 may be shaped as a rectangular parallelepiped tube so that two calibration blocks 2 may be disposed along the length direction of the rectangular parallelepiped tube. Of course, in other alternative embodiments, the shape of the base 11 can be adjusted according to actual needs. The base 11 may be a solid tube, thereby giving the base 11 higher strength. Of course, the base 11 may be a hollow tube when it is desired to reduce the weight of the base 11.
The legs 12, 12 can be mounted on the lower end of the base 11, so that the legs 12 can provide stable support for the base 11, increasing the stability of the base 11. The legs 12 may be flat, so that the contact surface between the legs 12 and the plane on which they rest is large. Of course, in other alternative embodiments, the shape of the legs 12 may be adjusted according to actual needs. The legs 12 may be welded to the base 11 to provide a stronger connection between the legs 12 and the base 11. Of course, the support leg 12 can also be connected with the base 11 by screw threads, so that the support leg 12 can be replaced in time when a fault occurs, and the maintenance difficulty of the whole base 1 is reduced.
The number of the positioning blocks 13 may be two, and two positioning blocks 13 may be mounted on the upper end of the base 11 along the first direction. Positioning block 13 may be welded to base 11 to provide a more secure fit between positioning block 13 and base 11. Of course, in other alternative embodiments, positioning block 13 may be mounted on base 11 by other means such as a threaded connection. Each positioning block 13 may be fixedly connected with a calibration block 2 such that a first distance value may be maintained between two calibration blocks 2 in a first direction. The first distance value may be used to calibrate the product under test.
The base 1 is made of high-precision steel, that is, the base 11, the legs 12 and the positioning blocks 13 are made of high-precision steel. Since high-precision steel has advantages of light weight and high precision, the weight of the base 1 can be reduced, and in addition, the precision of the base 1 can be made higher, so that the accuracy of the calibrator can be increased.
In the present embodiment, a first distance value is maintained between the two calibration blocks 2, and as shown in fig. 1, the first distance value is represented as L. Let the product to be measured between two calibration blocks 2, so as to compare the length value of the product with the first distance value: when the length of the product is the same as the first distance value, the product is qualified; and when an error exists between the length of the product and the first distance value, the product is unqualified.
By means of the structure, the base is made of high-precision steel, so that the base 1 can have the advantage of light weight of the high-precision steel, and the whole calibrator can be used and moved more conveniently. In addition, the high-precision steel has higher mechanical property, so that the precision of the base 1 is higher, and the accuracy of the calibrator can be improved.
As shown in fig. 1 to 3, the present embodiment further provides a method for manufacturing a base of an aligner, including the following steps:
and tempering the rough steel to obtain the base 1. Tempering the rough steel can eliminate residual stress in the rough steel material and improve the processing performance of the base 1 in the subsequent processing steps.
The base 1 is subjected to dimensional processing to determine the outer shape and dimensions of the base 1.
The base 1 is tempered in a steam atmosphere to produce ferroferric oxide adhering to the surface of the base 1, thereby obtaining the base 1 made of a high-precision steel material. Wherein the reaction temperature of tempering can be 500-600 ℃, preferably, the reaction temperature can be 550 ℃. The reaction time may be 2 hours, followed by 2 hours of incubation. Thereby fully preparing the ferroferric oxide.
By means of the method, the residual stress in the base 1 can be eliminated by tempering in the steam atmosphere, so that the organization structure in the base 1 is finer, the stability of the base 1 can be ensured, and the size of the base 1 is not easy to change. The iron in the base 1 may chemically react with the water vapor to generate ferroferric oxide and hydrogen, wherein the ferroferric oxide may be attached to the surface of the base 1. Because the ferroferric oxide does not react with oxygen at normal temperature, the outer surface of the base 1 does not generate an oxide layer. The ferroferric oxide has the properties of corrosion resistance and wear resistance, so that the base 1 can work in a certain corrosive environment, the use scenes of the base 1 are increased, and in addition, the base 1 is more wear-resistant.
Specifically, before the step of tempering the rough steel to obtain the base 1, primary vibration aging treatment is carried out on the rough steel. The vector sum of the internal stress in the rough steel and the additional vibration stress exceeds the yield strength of the material through vibration, so that the material is subjected to slight plastic deformation, and the internal stress in the material is relaxed and relieved. Therefore, the residual stress in the rough steel can be eliminated, the deformation in the rough steel is reduced, and the effect of preventing the rough steel from cracking can be achieved.
Specifically, after the step of tempering the rough steel to obtain the base 1, performing shot blasting on the base 1 to remove oxide skin in the base 1. The shot blasting can remove oxide skin on the surface of the base 1, so that the appearance quality of the base 1 is improved, and meanwhile, the subsequent spraying process is facilitated. The fatigue life of the base 1 can be improved to prevent plastic deformation and brittle fracture.
Specifically, in the step "dimension processing of the base 1", rough processing and finish processing are included.
Rough machining may be used to determine the basic dimensions of the base 1. The finish machining is used to improve the dimensional accuracy of the base 1. Thereby finally completing the machining of the size of the base 1 by the combination of rough machining and finish machining. So that the size of the processed base 1 can be made more accurate.
Specifically, after the rough machining, the method comprises the following steps:
the base 1 is subjected to secondary vibratory ageing treatment, which is directed to the base 1 already having basic dimensions, so that residual stresses of the base 1 after rough machining can be eliminated.
The base 1 is subjected to thermal refining, and the thermal refining can comprise quenching and high-temperature tempering, so that the strength, toughness, plasticity and cutting performance of the base 1 can be improved.
Specifically, after the step of tempering the base 1 in a steam atmosphere to generate ferroferric oxide attached to the surface of the base 1 to obtain the base 1 made of a high-precision steel material, the electrostatic spraying process is used for spraying molding powder onto the base 1, so that the appearance of the base 1 can be changed, the base 1 is more attractive, and in addition, the base 1 can also have an anti-rust effect.
Specifically, after the step of spraying molding powder on the base 1 by using an electrostatic spraying process, the base 1 is processed by using a fine grinding process, so that the precision and the roughness of the base 1 are ensured and reach a preset standard.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The utility model provides a base for calibrator, two calibration blocks are installed along the first direction to the base upper end, its characterized in that, the material of base adopts the high accuracy steel.
2. The base for the calibrator according to claim 1, comprising:
a base extending in a first direction;
the support leg is arranged at the lower end of the base;
the two positioning blocks are mounted at the upper end of the base along a first direction, and each positioning block is fixedly connected with the calibration block, so that a first distance value is kept between the calibration blocks.
3. A method for manufacturing a base for a calibrator, comprising the steps of:
tempering the rough steel to obtain a base;
carrying out size machining on the base;
tempering the base in a water vapor atmosphere to generate ferroferric oxide attached to the surface of the base, thereby obtaining the base made of the high-precision steel material.
4. The method for manufacturing a base for a calibrator according to claim 3, wherein in the step of "tempering the base in a steam atmosphere to generate ferroferric oxide attached to the surface of the base to obtain the base made of a high-precision steel material", the tempering is performed at a reaction temperature of 500 ℃ to 600 ℃ for 2 hours, and then the temperature is maintained for 2 hours.
5. The method of claim 3, wherein the step of subjecting the raw steel to a primary vibration aging treatment to remove residual stress in the raw steel is performed before the step of tempering the raw steel to obtain the base.
6. The method for manufacturing the base of the calibrator according to claim 3, wherein after the step of "tempering the rough steel to obtain the base", the base is shot-blasted to remove scale from the base.
7. The method for manufacturing a base for an aligner according to claim 3, wherein in the step "subjecting the base to dimensional processing" includes rough processing and finish processing;
the roughing determining a base dimension of the base;
the finish machining is used for improving the dimensional accuracy of the base.
8. The method of making a base for an aligner according to claim 7 including, after said rough machining, the steps of:
carrying out secondary vibration aging treatment on the base so as to eliminate the residual stress of the base after rough machining;
and (3) carrying out quenching and tempering on the base so as to improve the performance of the base.
9. The method for manufacturing a base for a calibrator according to claim 3, wherein after the step of tempering the base in a steam atmosphere to generate ferroferric oxide attached to the surface of the base to obtain the base made of a high-precision steel material, molding powder is sprayed onto the base by using an electrostatic spraying process.
10. The method of claim 9, wherein after the step of spraying the molding powder onto the base using an electrostatic spraying process, the base is processed using a finish grinding process to ensure the precision and roughness of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110392592.6A CN113102948B (en) | 2021-04-13 | 2021-04-13 | Base for calibrator and method of manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110392592.6A CN113102948B (en) | 2021-04-13 | 2021-04-13 | Base for calibrator and method of manufacture |
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| Publication Number | Publication Date |
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| CN113102948A true CN113102948A (en) | 2021-07-13 |
| CN113102948B CN113102948B (en) | 2024-08-13 |
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| CN202110392592.6A Active CN113102948B (en) | 2021-04-13 | 2021-04-13 | Base for calibrator and method of manufacture |
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| US4210469A (en) * | 1974-07-11 | 1980-07-01 | Nippon Steel Corp. | Process of annealing for preventing temper colors on a steel sheet |
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| CN1867688A (en) * | 2003-10-10 | 2006-11-22 | 住友金属工业株式会社 | Martensitic stainless steel pipe and method for production thereof |
| CN102108469A (en) * | 2010-10-26 | 2011-06-29 | 常州宝菱重工机械有限公司 | Hot rolling hot straightening roll suitable for thick steel plates with thickness of less than or equal to 60mm and preparation method thereof |
| CN202274841U (en) * | 2011-09-30 | 2012-06-13 | 鞍钢股份有限公司 | Auxiliary tool for measuring size of plate blank |
| CN203605870U (en) * | 2013-11-28 | 2014-05-21 | 常熟市鑫统联钢管有限公司 | Length testing tool |
| CN104526274A (en) * | 2014-12-02 | 2015-04-22 | 芜湖福司精密模具有限公司 | Manufacturing method of base of tamping machine |
| CN207163370U (en) * | 2017-09-26 | 2018-03-30 | 浙江美力科技股份有限公司 | The general length detection tool of stabiliser bar, torsion bar |
| CN108642407A (en) * | 2018-05-14 | 2018-10-12 | 苏州新众禹环境科技有限公司 | A kind of torque arm and its processing technology |
| CN210108208U (en) * | 2019-07-22 | 2020-02-21 | 东莞市万福五金制品有限公司 | Axle type product length measurement device |
-
2021
- 2021-04-13 CN CN202110392592.6A patent/CN113102948B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210469A (en) * | 1974-07-11 | 1980-07-01 | Nippon Steel Corp. | Process of annealing for preventing temper colors on a steel sheet |
| CN1867688A (en) * | 2003-10-10 | 2006-11-22 | 住友金属工业株式会社 | Martensitic stainless steel pipe and method for production thereof |
| CN1714995A (en) * | 2005-07-26 | 2006-01-04 | 重庆润丰纺织机械有限公司 | Method for processing bearing steel rings |
| CN102108469A (en) * | 2010-10-26 | 2011-06-29 | 常州宝菱重工机械有限公司 | Hot rolling hot straightening roll suitable for thick steel plates with thickness of less than or equal to 60mm and preparation method thereof |
| CN202274841U (en) * | 2011-09-30 | 2012-06-13 | 鞍钢股份有限公司 | Auxiliary tool for measuring size of plate blank |
| CN203605870U (en) * | 2013-11-28 | 2014-05-21 | 常熟市鑫统联钢管有限公司 | Length testing tool |
| CN104526274A (en) * | 2014-12-02 | 2015-04-22 | 芜湖福司精密模具有限公司 | Manufacturing method of base of tamping machine |
| CN207163370U (en) * | 2017-09-26 | 2018-03-30 | 浙江美力科技股份有限公司 | The general length detection tool of stabiliser bar, torsion bar |
| CN108642407A (en) * | 2018-05-14 | 2018-10-12 | 苏州新众禹环境科技有限公司 | A kind of torque arm and its processing technology |
| CN210108208U (en) * | 2019-07-22 | 2020-02-21 | 东莞市万福五金制品有限公司 | Axle type product length measurement device |
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| Publication number | Publication date |
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| CN113102948B (en) | 2024-08-13 |
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