CN113523100A - High-temperature belleville spring and heat setting process thereof - Google Patents
High-temperature belleville spring and heat setting process thereof Download PDFInfo
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- CN113523100A CN113523100A CN202010317553.5A CN202010317553A CN113523100A CN 113523100 A CN113523100 A CN 113523100A CN 202010317553 A CN202010317553 A CN 202010317553A CN 113523100 A CN113523100 A CN 113523100A
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- 238000009998 heat setting Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 11
- 230000000670 limiting effect Effects 0.000 claims abstract description 28
- 238000007493 shaping process Methods 0.000 claims description 19
- 238000005496 tempering Methods 0.000 claims description 13
- 238000010791 quenching Methods 0.000 claims description 12
- 230000000171 quenching effect Effects 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 6
- 238000009661 fatigue test Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 6
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000003749 cleanliness Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 229910000734 martensite Inorganic materials 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 3
- 230000037431 insertion Effects 0.000 claims 3
- 210000001503 joint Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- 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
- C21D11/00—Process control or regulation for heat treatments
-
- 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
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Springs (AREA)
Abstract
The invention discloses a high-temperature butterfly spring which comprises a butterfly spring with an upward convex middle part and a first jack arranged in the middle of the top end of the butterfly spring, wherein the bottom end of the butterfly spring is fixedly connected with a plurality of groups of limiting columns distributed in an annular array, limiting holes are formed in the positions, between the plurality of groups of limiting columns, of the bottom end of the butterfly spring, and two groups of outer convex blocks are symmetrically and fixedly connected to the position, at the outer side of the first jack, of the top end of the butterfly spring. According to the invention, firstly, the assembling limiting structure is arranged in the inner part, so that the axial overlapping and assembling treatment of a plurality of groups of disc springs is facilitated, the plurality of groups of disc springs can form a whole, the generation of the independent torsion phenomenon of the disc springs is reduced, and the stability of overlapping and assembling of the disc springs is improved.
Description
Technical Field
The invention relates to the technical field of belleville springs, in particular to a high-temperature belleville spring and a heat setting process thereof.
Background
The belleville spring washer is made up by using belleville spring, and can be used singly or several belleville washers which can be series-connected or parallel-connected, and can be used for bearing the static or dynamic load acted along the axial direction at the upper inner edge and lower outer edge, and after being compressed, it can be deformed until it is pressed flat, and can be used as live load in the form of stored energy. When necessary, automatically converts into additional compression load required by sealing, so as to reduce the continuous requirement of tightening in the use of gaskets and packing. However, the existing high-temperature belleville springs still have the defects that: firstly, although a plurality of groups of belleville springs can be subjected to axial superposition processing, after the plurality of groups of belleville springs are superposed and assembled, when the plurality of groups of belleville springs are subjected to axial torsion force, the plurality of groups of belleville springs can independently rotate in a reaction mode, so that the phenomenon that a fastener is twisted and loosened is easily caused, and the assembling stability is poor.
Disclosure of Invention
The invention aims to: the high-temperature belleville spring aims to solve the problems that a plurality of groups of belleville springs are easy to rotate independently after being overlapped and assembled and the assembling stability is poor in the traditional high-temperature belleville spring.
In order to achieve the purpose, the invention adopts the following technical scheme:
the anti-collision device comprises a belleville spring with an upward convex middle part and a first jack arranged in the middle of the top end of the belleville spring, wherein multiple groups of limiting columns distributed in an annular array are fixedly connected to the bottom end of the belleville spring, limiting holes are formed in the bottom end of the belleville spring between the multiple groups of limiting columns, two groups of outer convex blocks are symmetrically and fixedly connected to the outer side of the first jack at the top end of the belleville spring, and an inner groove is formed in the top end of the belleville spring between the two groups of outer convex blocks.
As a further description of the above technical solution:
the limiting column and the limiting hole are in transition fit.
As a further description of the above technical solution:
the bottom end of the limiting column is fixedly connected with a butt-joint block which is of a hemispherical structure.
As a further description of the above technical solution:
the outer surface walls of the two groups of outer lugs are mutually attached to the inner surface walls of the two groups of inner grooves.
As a further description of the above technical solution:
the middle part of the bottom end of the belleville spring is fixedly connected with a buffer disc with a concave middle part, and the inclination angle of the buffer disc is the same as that of the belleville spring.
As a further description of the above technical solution:
a second jack is formed in the middle of the buffer disc, and the inner diameter of the second jack is equal to that of the first jack.
Another object of the present invention is to provide a heat setting process for a high temperature belleville spring, which comprises the following steps,
1) blanking and punching: punching and cutting a steel plate raw material into a primary contour of the belleville spring on a punch press, wherein the outer diameter, the inner diameter and the outer diameter of the teeth meet the design requirements;
2) stamping forming: molding on a punch press to obtain a belleville spring, wherein the height of the belleville spring meets the design requirement;
3) quenching: putting the product subjected to punch forming into a multi-purpose furnace for heat treatment to convert the product into martensite, wherein the hardness reaches HRC 59-62; wherein the quenching temperature is set to be 860 +/-10 ℃, the quenching time is controlled to be 60 +/-10 min, the carbon potential in the multipurpose furnace is 0.5 +/-0.05%, the acetone content is controlled to be 0.1-0.5 ml/min, the hot oil temperature is 100 ℃, and the hot oil time is 20 min;
4) heat setting: providing a shaping die, heating the shaping die to 380 +/-5 ℃ by using an electric heating wire, then putting a product with the standard hardness into the shaping die, driving the shaping die to be closed by using a hydraulic machine, keeping the pressure at 20MPa for more than 35S, and controlling the size of the product within a required range;
5) tempering: putting the product after heat setting into a mesh belt type tempering furnace for treatment, so that the hardness of the product reaches HRC49-54, wherein the tempering temperature of the stage I and the stage II is 390 +/-5 ℃; the tempering frequency is 7 +/-1 Hz;
6) ultrasonic cleaning: cleaning the surface of the product by using an ultrasonic cleaning instrument to ensure that the cleanliness is less than or equal to 0.5 mg;
7) oiling;
8) and (3) fatigue testing: carrying out fatigue test on the product by using a fatigue tester;
9) and (5) inspecting a finished product.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the structure, the assembling limiting structure is arranged inside the butterfly spring, the limiting columns and the limiting holes are formed in the bottoms of the butterfly springs, when the limiting columns are inserted into the limiting holes, the bottoms of the butterfly springs can be assembled and limited, meanwhile, the tops of the butterfly springs are provided with the outer convex blocks and the inner grooves, when the outer convex blocks slide into the inner grooves, the tops of the butterfly springs can be assembled and limited, the structure facilitates the axial overlapping and assembling of multiple groups of butterfly springs, the multiple groups of butterfly springs can form a whole, the generation of the independent torsion phenomenon of the butterfly springs is reduced, and therefore the stability of overlapping and assembling of the butterfly springs is improved.
2. According to the invention, the distributed buffer structure is arranged in the butterfly spring, the buffer discs which are distributed in an inclined manner are arranged in the middle of the bottom end of the butterfly spring, the supporting surface at the bottom of the butterfly spring is increased, meanwhile, a triangular bearing structure is formed between the upper half area and the lower half area of the butterfly spring, and the local impact force can be effectively dispersed.
3. Compared with the prior art, the heat setting process of the belleville spring has the beneficial effects that: the deformation of the product is reduced, the size of the product can be effectively controlled within a required range, the product quality is improved, the product yield is improved from 40% to 95%, and the stability of the process is verified through a 9-point test of 3 batches of the whole furnace.
Drawings
Fig. 1 is a schematic perspective view of a high-temperature belleville spring according to the present invention;
FIG. 2 is a schematic diagram of an assembly structure of the belleville spring of the present invention;
FIG. 3 is a perspective cross-sectional view of a belleville spring of the present invention;
fig. 4 is a schematic sectional view of the shaping mold according to the present invention.
Illustration of the drawings:
1. a belleville spring; 101. a first jack; 102. a limiting column; 102a, a butt joint block; 103. a limiting hole; 104. an outer bump; 105. an inner groove; 2. a buffer tray; 201. a second jack; 3. an upper die; 4. a cavity; 5. a lower die; 6. the core is positioned.
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.
Example 1
Referring to fig. 1-3, the present invention provides a technical solution: high temperature belleville spring, be the belleville spring 1 of epirelief and set up the first jack 101 at belleville spring 1 top middle part including the middle part, the bottom fixedly connected with multiunit of belleville spring 1 is the spacing post 102 of annular array distribution, spacing hole 103 has all been seted up to the bottom of belleville spring 1 between being located the spacing post 102 of multiunit, the top of belleville spring 1 is located the two sets of outer lugs 104 of the outside symmetry fixedly connected with of first jack 101, the top of belleville spring 1 is located and has seted up inner groovy 105 between two sets of outer lugs 104.
Specifically, as shown in fig. 1 and 2, spacing post 102 and spacing hole 103 are transition fit, the bottom fixedly connected with of spacing post 102 is the butt joint piece 102a of hemispherical structure, the outer table wall of two sets of outer lugs 104 and the interior table wall of two sets of inner groovy 105 laminate each other, the setting of this kind of structure, the stability of assembling between outer lug 104 and the inner groovy 105 has been promoted, chooseing for use of transition fit mode, assemble and spacing fixed stability between spacing post 102 and the spacing hole 103 has been promoted, be the setting of hemispherical structure butt joint piece 102a, be convenient for the counterpoint between spacing post 102 and the spacing hole 103 and handle.
Specifically, as shown in fig. 1 and 3, the middle part of the bottom end of the belleville spring 1 is fixedly connected with a buffer disc 2 with a concave middle part, the inclination angle of the buffer disc 2 is the same as that of the belleville spring 1, a second jack 201 is arranged in the middle of the buffer disc 2, the inner diameter of the second jack 201 is equal to that of the first jack 101, the buffer disc 2 is arranged, the impact force applied to the inclined surface of the belleville spring 1 can be dispersed through two triangular force bearing structures, and the arrangement of the first jack 101 and the second jack 201 facilitates the processing of an inserting sleeve between the belleville spring 1 and a fastening piece or a column piece.
The working principle is as follows: when in use, when the bottoms of the belleville springs 1 are assembled, the limiting columns 102 on one group of belleville springs 1 are inserted into the limiting holes 103 on the other group of belleville springs 1, so that the assembly and the limiting and fixing treatment between the bottoms of the two groups of belleville springs 1 are completed, when the top of the belleville spring 1 is assembled, the outer lugs 104 on one group of belleville springs 1 are adjusted and slide into the inner grooves 105 on the other group of belleville springs 1, so that the assembly and the limiting and fixing treatment between the tops of the two groups of belleville springs 1 are completed, after the integral assembly and limiting, the integral assembly and the limiting are slid outside a fastener, when the belleville springs 1 are subjected to axial impact force, the impact force is transmitted to the buffer disc 2 by the belleville springs 1, and because the buffer disc 2 is obliquely fixed at the middle parts of the bottom ends of the belleville springs 1, the impact force on the belleville springs 1 can be dispersed, the phenomenon that the local deformation of the belleville spring 1 is overlarge when the belleville spring is subjected to impact load is reduced.
Example 2
The embodiment is a heat setting process of a belleville spring, which comprises the following steps:
1) blanking and punching: punching and cutting a steel plate raw material into a primary contour of the belleville spring on a punch press, wherein the outer diameter, the inner diameter and the outer diameter of the teeth meet the design requirements;
2) deburring: removing burrs on the upper surface and the lower surface by using a vibration polishing machine;
3) stamping forming: molding on a punch to obtain the belleville spring, wherein the height is controlled to be 2 +/-0.15 mm to meet the design requirement;
4) quenching: putting the product subjected to punch forming into a multi-purpose furnace for heat treatment to convert the product into martensite, wherein the hardness reaches HRC 59-62; wherein the quenching temperature is set to be 860 +/-10 ℃, the quenching time is controlled to be 60 +/-10 min, the carbon potential in the multipurpose furnace is 0.5 +/-0.05%, the acetone content is controlled to be 0.1-0.5 ml/min, the hot oil temperature is 100 ℃, and the hot oil time is 20 min; the quenching temperature, the quenching time, the carbon potential content and the acetone content are strictly controlled, so that the hardness of the quenched product is effectively guaranteed, and the product yield of the quenching process is improved;
5) and (3) hardness detection: detecting whether the hardness of the quenched product is qualified, if so, entering the next step, and if not, rejecting the product to be a defective product;
6) heat setting: providing a shaping die, heating the shaping die to 380 +/-5 ℃ by using an electric heating wire, then putting a product with the hardness reaching the standard into the shaping die, driving the shaping die to be closed by using a hydraulic machine, keeping the pressure at 20MPa for more than 35S in a continuous pressure maintaining state, and controlling the size of the product within a required range;
referring to fig. 4, the shaping mold 100 includes a cylindrical lower mold 5, a positioning core 6 having a lower portion embedded in the lower mold 5, and an upper mold 3 cooperating with the lower mold 5 to form a product cavity 4, wherein an upper surface of the positioning core 6 protrudes out of an upper surface of the lower mold 5, and a distance between the lower mold 5 and the upper mold 6 is strictly controlled;
heating the shaping mold to 380 ℃ through the heated shaping mold and a pressure maintaining state in a certain time period, wherein the temperature of the shaping mold is close to the tempering temperature, so that the product structure is changed, and then, under the pressure action of an upper mold and a lower mold and the size limiting action of a product cavity, the product size is basically shaped along with the temperature reduction of the shaping mold by utilizing the mold closing pressure of the shaping mold, so that the size of the product is effectively controlled within a required range;
7) tempering: putting the product after heat setting into a mesh belt type tempering furnace for treatment, so that the hardness of the product reaches HRC49-54, wherein the tempering temperature of the stage I and the stage II is 390 +/-5 ℃; the tempering frequency is 7 +/-1 Hz;
8) ultrasonic cleaning: cleaning the surface of the product by using an ultrasonic cleaning instrument to ensure that the cleanliness is less than or equal to 0.5 mg;
9) oiling;
10) and (3) fatigue testing: carrying out fatigue test on the product by using a fatigue tester;
11) and (5) inspecting a finished product.
The heat setting process of the belleville spring reduces product deformation, can effectively control the size of a product within a required range, improves product quality, improves the product yield from 40% to 95%, and verifies the stability of the process through a 9-point test of a whole furnace of 3 batches.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The high-temperature butterfly spring comprises a butterfly spring (1) with an upward convex middle part and a first jack (101) arranged in the middle of the top end of the butterfly spring (1), and is characterized in that multiple groups of limiting columns (102) distributed in an annular array are fixedly connected to the bottom end of the butterfly spring (1), limiting holes (103) are formed between the multiple groups of limiting columns (102) at the bottom end of the butterfly spring (1), two groups of outer lugs (104) are symmetrically and fixedly connected to the outer side of the first jack (101) at the top end of the butterfly spring (1), and an inner groove (105) is formed between the two groups of outer lugs (104) at the top end of the butterfly spring (1).
2. A high temperature belleville spring according to claim 1, wherein the position-limiting post (102) and the position-limiting hole (103) are in transition fit.
3. The high-temperature belleville spring according to claim 2, wherein the bottom end of the limiting column (102) is fixedly connected with a butt-joint block (102 a) with a hemispherical structure.
4. A high temperature belleville spring according to claim 1, wherein the outer surface walls of the two sets of outer protrusions (104) and the inner surface walls of the two sets of inner grooves (105) are attached to each other.
5. A high-temperature belleville spring according to claim 1, wherein the middle part of the bottom end of the belleville spring (1) is fixedly connected with a buffer disc (2) with a concave middle part, and the inclination angle of the buffer disc (2) is the same as that of the belleville spring (1).
6. A high-temperature belleville spring according to claim 5, wherein the middle of the buffer disc (2) is opened with a second insertion hole (201), and the inner diameter of the second insertion hole (201) is equal to the inner diameter of the first insertion hole (101).
7. A heat-setting process for a high-temperature belleville spring, which comprises the steps of the high-temperature belleville spring of any one of claims 1 to 6,
1) blanking and punching: punching and cutting a steel plate raw material into a primary contour of the belleville spring on a punch press, wherein the outer diameter, the inner diameter and the outer diameter of the teeth meet the design requirements;
2) stamping forming: molding on a punch press to obtain a belleville spring, wherein the height of the belleville spring meets the design requirement;
3) quenching: putting the product subjected to punch forming into a multi-purpose furnace for heat treatment to convert the product into martensite, wherein the hardness reaches HRC 59-62; wherein the quenching temperature is set to be 860 +/-10 ℃, the quenching time is controlled to be 60 +/-10 min, the carbon potential in the multipurpose furnace is 0.5 +/-0.05%, the acetone content is controlled to be 0.1-0.5 ml/min, the hot oil temperature is 100 ℃, and the hot oil time is 20 min;
4) heat setting: providing a shaping die, heating the shaping die to 380 +/-5 ℃ by using an electric heating wire, then putting a product with the standard hardness into the shaping die, driving the shaping die to be closed by using a hydraulic machine, keeping the pressure at 20MPa for more than 35S, and controlling the size of the product within a required range;
5) tempering: putting the product after heat setting into a mesh belt type tempering furnace for treatment, so that the hardness of the product reaches HRC49-54, wherein the tempering temperature of the stage I and the stage II is 390 +/-5 ℃; the tempering frequency is 7 +/-1 Hz;
6) ultrasonic cleaning: cleaning the surface of the product by using an ultrasonic cleaning instrument to ensure that the cleanliness is less than or equal to 0.5 mg;
7) oiling;
8) and (3) fatigue testing: carrying out fatigue test on the product by using a fatigue tester;
9) and (5) inspecting a finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317553.5A CN113523100A (en) | 2020-04-21 | 2020-04-21 | High-temperature belleville spring and heat setting process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317553.5A CN113523100A (en) | 2020-04-21 | 2020-04-21 | High-temperature belleville spring and heat setting process thereof |
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| CN113523100A true CN113523100A (en) | 2021-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114711178A (en) * | 2022-04-08 | 2022-07-08 | 海南省海洋与渔业科学院 | Coral restoration type artificial fish reef convenient to transport |
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| CN208885840U (en) * | 2018-10-12 | 2019-05-21 | 扬州飞天弹簧有限公司 | A kind of disk spring |
| CN210218512U (en) * | 2019-06-14 | 2020-03-31 | 江苏三众弹性技术股份有限公司 | High temperature resistant belleville spring |
| CN211924787U (en) * | 2020-04-21 | 2020-11-13 | 江苏金力弹簧科技有限公司 | High temperature belleville spring |
-
2020
- 2020-04-21 CN CN202010317553.5A patent/CN113523100A/en active Pending
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|---|---|---|---|---|
| US4799654A (en) * | 1981-01-13 | 1989-01-24 | Karl Eickmann | Fluid flow facilitating arrangement which includes a coned ring |
| CN203335691U (en) * | 2013-05-22 | 2013-12-11 | 安徽舒城华云弹簧制造有限公司 | Disc spring |
| CN203963264U (en) * | 2014-06-19 | 2014-11-26 | 江苏轩瑞结构减振设备有限公司 | A kind of constant supporting spring hanger by forming with the butterfly spring of radial groove |
| CN108866302A (en) * | 2018-07-27 | 2018-11-23 | 苏州市润凯汽车配件制造有限公司 | A kind of heat setting process of butterfly spring |
| CN208885840U (en) * | 2018-10-12 | 2019-05-21 | 扬州飞天弹簧有限公司 | A kind of disk spring |
| CN210218512U (en) * | 2019-06-14 | 2020-03-31 | 江苏三众弹性技术股份有限公司 | High temperature resistant belleville spring |
| CN211924787U (en) * | 2020-04-21 | 2020-11-13 | 江苏金力弹簧科技有限公司 | High temperature belleville spring |
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| CN114711178A (en) * | 2022-04-08 | 2022-07-08 | 海南省海洋与渔业科学院 | Coral restoration type artificial fish reef convenient to transport |
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