CN113699330B - Heat treatment tool and heat treatment method for thin-wall cylinder parts - Google Patents
Heat treatment tool and heat treatment method for thin-wall cylinder parts Download PDFInfo
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- CN113699330B CN113699330B CN202110904026.9A CN202110904026A CN113699330B CN 113699330 B CN113699330 B CN 113699330B CN 202110904026 A CN202110904026 A CN 202110904026A CN 113699330 B CN113699330 B CN 113699330B
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- 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
- C21D1/62—Quenching devices
-
- 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
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- 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
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- 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
- Y02P10/25—Process efficiency
Abstract
The invention discloses a heat treatment tool and a heat treatment method for thin-wall cylinder parts, and belongs to the field of process manufacturing. The heat treatment tool comprises a protective core and a protective sleeve. The protection core is of an annular structure, the peripheral wall of one end of the protection core is provided with a first outer flange which is coaxially arranged, the first outer flange is used for propping against the end face of the thin-wall cylinder part, the outer diameter of the first outer flange is smaller than that of the thin-wall cylinder part, and the peripheral wall of the other end of the protection core is provided with external threads to be matched with the internal threads of the thin-wall cylinder part. The inner peripheral wall of one end of the protective sleeve is provided with a first inner flange which is coaxially arranged, the inner diameter of the first inner flange is larger than the inner diameter of the thin-wall cylinder part, and the inner peripheral wall of the other end of the protective sleeve is used for being in clearance fit with the outer peripheral wall of the thin-wall cylinder part. The heat treatment tool for the thin-wall cylinder part provided by the embodiment of the invention can avoid deformation of the internal thread of the thin-wall cylinder part after quenching treatment, thereby meeting the factory requirements.
Description
Technical Field
The invention belongs to the field of process manufacturing, and particularly relates to a heat treatment tool and a heat treatment method for a thin-wall cylinder part.
Background
Quenching is one of the metal heat treatment processes, specifically, the metal parts are heated to a certain temperature and then are rapidly cooled in water, oil or air, so as to improve the hardness and strength of the metal. Therefore, in order to obtain high-precision components having ultra-high strength and ultra-high hardness, it is necessary to perform quenching treatment after the sizing process is completed.
However, the inner wall of the end part of the existing part thin-wall cylinder part is provided with an internal thread (for example, the diameter is 75mm, the wall thickness of the internal thread part is only 5 mm), the intensity of the internal thread part is weak, the internal thread part belongs to a typical weak rigid structure, and when the internal thread part is subjected to quenching treatment after the internal thread part is machined in place and the size of the internal thread part is subjected to phase-change tissue stress and cold-hot alternating thermal stress, so that the internal thread is deformed, and the part cannot meet the factory requirement.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the invention provides a heat treatment tool and a heat treatment method for a thin-wall cylinder part, and aims to prevent internal threads of the thin-wall cylinder part from deforming after quenching treatment so as to meet factory requirements.
In a first aspect, an embodiment of the present invention provides a heat treatment tool for a thin-walled cylinder component, where the heat treatment tool includes a protective core and a protective sheath;
the protection core is of an annular structure, an inner hole of the protection core is used for being communicated with an inner hole of a thin-wall cylinder part, a first outer flange which is coaxially arranged is arranged on the peripheral wall of one end of the protection core and used for being abutted against the end face of the thin-wall cylinder part, the outer diameter of the first outer flange is smaller than that of the thin-wall cylinder part, and an outer thread is arranged on the peripheral wall of the other end of the protection core so as to be matched with the inner thread of the thin-wall cylinder part;
the inner peripheral wall of one end of the protective sleeve is provided with a first inner flange which is coaxially arranged, the inner diameter of the first inner flange is larger than the inner diameter of the thin-wall cylinder part, and the inner peripheral wall of the other end of the protective sleeve is used for being in clearance fit with the outer peripheral wall of the thin-wall cylinder part.
Optionally, the inner peripheral wall of the protective core has a second inner flange coaxially arranged thereon, and the second inner flange is located at one end of the protective core.
Optionally, the outer peripheral wall of the other end of the protective core and the inner peripheral wall of the other end of the protective sleeve are provided with chamfers.
Optionally, an end peripheral wall of the protective core has a relief groove, and the relief groove is located between the first outer flange and the external thread.
In a second aspect, an embodiment of the present invention provides a heat treatment method for a thin-walled cylinder part, where the heat treatment method is based on the heat treatment tool of the first aspect, and the heat treatment method includes:
screwing the other end of the protective core into an inner hole of the thin-wall cylinder part, and enabling the first outer flange to abut against the end face of the thin-wall cylinder part;
sleeving the protective sleeve on the peripheral wall of the thin-wall cylinder part, and enabling the first inner flange to abut against the end face of the thin-wall cylinder part;
quenching the heat treatment tool and the thin-wall cylinder part to obtain an assembly;
and separating the assembly to obtain the quenched thin-wall cylinder part.
Optionally, said separating said assembly to provide a quenched thin-walled cylinder component comprises:
arranging a baffle ring, coaxially abutting the protective sleeve of the assembly above the baffle ring, wherein the inner diameter of the baffle ring is larger than the inner diameter of the protective sleeve and smaller than the outer diameter of the protective sleeve;
the protective core is extruded downwards, so that the protective core, the thin-wall cylinder parts and the protective sleeve are driven to be separated;
and screwing and separating the thin-wall cylinder part and the protective core.
Optionally, the pressing the protective core downward, thereby driving the protective core, the thin-walled cylinder component and the protective sheath to separate includes:
and extruding the protective core through a pressure head of an oil press, so as to drive the protective core, the thin-wall cylinder part and the protective sleeve to be separated.
Optionally, after the protecting core is pressed downwards, so as to drive the protecting core, the thin-wall cylinder part and the protecting sleeve to be separated, the heat treatment method comprises the following steps:
and turning the inner wall of the protective sleeve to reduce the inner diameter of the protective sleeve.
The technical scheme provided by the embodiment of the invention has the beneficial effects that:
when the heat treatment tool for the thin-wall cylinder part is used for heat treatment of the thin-wall cylinder part, firstly, the other end of the protective core is screwed into the inner hole of the thin-wall cylinder part through the matching of the external thread and the internal thread, and the first external flange is abutted against the end face of the thin-wall cylinder part, so that the support of the threaded part on the thin-wall cylinder part is realized, and the out-of-tolerance deformation of the internal thread of the thin-wall cylinder part during subsequent quenching is prevented. And then, the protective sleeve is sleeved on the peripheral wall of the thin-wall cylinder part, and the first inner flange is abutted against the end face of the thin-wall cylinder part, so that deformation caused by expansion of the outer wall of the threaded part on the thin-wall cylinder part during quenching is avoided, and the out-of-tolerance of the inner threads of the thin-wall cylinder part can be avoided. And then, quenching the heat treatment tool and the thin-wall cylinder part to obtain the assembly. And finally, separating the assembly to obtain the quenched thin-wall cylinder part.
That is, according to the heat treatment tool for the thin-wall cylinder part, the internal thread part and the internal thread of the thin-wall cylinder part can be supported and positioned through the protective core, and out-of-tolerance deformation of the internal thread is avoided; and the internal thread part of the thin-wall cylinder part is wrapped through the protective sleeve, so that the out-of-tolerance deformation of the internal thread caused by the expansion of the outer wall of the internal thread part is avoided, and the deformation of the internal thread of the thin-wall cylinder part after quenching treatment is finally avoided, and the delivery requirement is met.
Drawings
FIG. 1 is a schematic diagram of a heat treatment tool for thin-walled cylinder components according to an embodiment of the present invention;
FIG. 2 is an enlarged partial view of area A of FIG. 1;
FIG. 3 is a flow chart of a method for heat treatment of thin-walled cylinder components in accordance with an embodiment of the present invention;
FIG. 4 is a flow chart of another method for heat treatment of thin-walled cylinder components provided in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural view of a baffle ring according to an embodiment of the present invention.
The symbols in the drawings are as follows:
1. a protective core; 11. a first outer flange; 12. an external thread; 13. an inner flange; 2. a protective sleeve; 21. a first inner flange; 3. chamfering; 4. a tool retracting groove; 5. a baffle ring; 100. thin-wall cylinder parts.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Fig. 1 is a schematic use diagram of a heat treatment tool for a thin-walled cylinder component according to an embodiment of the present invention, and fig. 2 is a partially enlarged view of a region a in fig. 1, and in combination with fig. 1 and fig. 2, the heat treatment tool includes a protective core 1 and a protective sheath 2.
The protection core 1 is of an annular structure, an inner hole of the protection core 1 is used for being communicated with an inner hole of the thin-wall cylinder part 100 (quenching medium can flow into the inner hole of the thin-wall cylinder part 100 to obtain a martensitic structure), the outer peripheral wall of one end of the protection core 1 is provided with a first outer flange 11 which is coaxially arranged, the first outer flange 11 is used for propping against the end face of the thin-wall cylinder part 100, the outer diameter of the first outer flange 11 is smaller than the outer diameter of the thin-wall cylinder part 100, and the outer peripheral wall of the other end of the protection core 1 is provided with an external thread 12 to be matched with the internal thread of the thin-wall cylinder part 100.
The inner peripheral wall of one end of the protective sleeve 2 is provided with a first inner flange 21 which is coaxially arranged, and the inner diameter of the first inner flange 21 is larger than the inner diameter of the thin-wall cylinder part 100, and the inner peripheral wall of the other end of the protective sleeve 2 is used for being in clearance fit with the outer peripheral wall of the thin-wall cylinder part 100.
For the heat treatment tool for the thin-walled cylinder part provided by the embodiment of the invention, when the thin-walled cylinder part 100 is subjected to heat treatment, firstly, the other end of the protective core 1 is screwed into the inner hole of the thin-walled cylinder part 100 through the matching of the external thread 12 and the internal thread, and the first outer flange 11 is propped against the end face of the thin-walled cylinder part 100 (the subsequent extrusion separation protective sleeve 2 is convenient), so that the support of the threaded part on the thin-walled cylinder part 100 is realized, and the out-of-tolerance deformation of the internal thread of the thin-walled cylinder part 100 during subsequent quenching is prevented. Then, the protective sleeve 2 is sleeved on the outer peripheral wall of the thin-walled cylinder part 100, and the first inner flange 21 is abutted against the end face of the thin-walled cylinder part 100, so that deformation caused by expansion of the outer wall of the threaded part on the thin-walled cylinder part 100 during quenching is avoided, and out-of-tolerance internal threads of the thin-walled cylinder part 100 can be avoided. Then, the heat treatment tool and the thin-walled cylinder component 100 are subjected to quenching treatment to obtain an assembly. Finally, the assembly is separated, thereby obtaining the quenched thin-walled cylinder component 100.
That is, according to the heat treatment tool for the thin-walled cylinder part provided by the embodiment of the invention, the internal thread part and the internal thread of the thin-walled cylinder part 100 can be supported and positioned through the protective core 1, so that the out-of-tolerance deformation of the internal thread is avoided; and the internal thread part of the thin-wall cylinder part 100 is wrapped through the protective sleeve 2, so that the out-of-tolerance deformation of the internal thread caused by the expansion of the outer wall of the internal thread part is avoided, and the deformation of the internal thread of the thin-wall cylinder part 100 after quenching treatment is finally avoided, and the factory requirement is met.
After the assembly of the heat treatment tool and the thin-walled cylinder part 100 is completed, the first outer flange 11 and the first inner flange 21 are abutted against the top of the thin-walled cylinder part 100 uniformly, so that the separation of the three parts can be avoided, the relative position can be kept in the carrying process conveniently, the separation of the protective sleeve 2 and the thin-walled cylinder part 100 can be realized by extruding the protective core 1 after the quenching treatment (after the quenching, the inner wall of the protective sleeve 2 is shrunk in size, namely, the protective sleeve 2 and the thin-walled cylinder part 100 become interference fit after the quenching).
In addition, when the heat treatment device is not used, the thin-walled cylinder component 100 deforms after internal thread quenching, and the thread plug gauge cannot be screwed into the thread during internal thread detection. The through end of the thread plug gauge can be directly turned to the bottom after quenching treatment by the heat treatment device, and the internal thread detected by the thread plug gauge after heat treatment meets the requirements.
Illustratively, the gap between the first outer flange 11 and the first inner flange 21 is 0.05-0.07mm so that the relative positions of the two are unchanged.
In this embodiment, the heat treatment tool is made of carbon structural steel, and when the thin-walled cylinder part 100 along with the high-strength alloy steel is quenched, the heat treatment tool does not generate tissue phase change and only bears cold and hot stresses. Therefore, the protective sleeve 2 of the heat treatment tool is quenched and contracted, and plays a role in restraining the outer circle of the thin-wall cylinder part 100. The protection core 1 cools down slower than the thin wall position of the thin wall cylinder part 100 and the protection sleeve 2, and plays a role in supporting the internal thread to prevent ellipse.
Optionally, the protective core 1 has a second inner flange 13 coaxially arranged on an inner peripheral wall thereof, and the second inner flange 13 is located at one end of the protective core 1.
In the above embodiment, the second inner flange 13 can increase the structural strength of the top of the protection core 1, facilitate extrusion and separation of the protection sleeve 2, and reduce the cooling efficiency of the protection core 1, thereby achieving a good supporting effect on the internal thread.
With continued reference to fig. 1, the outer peripheral wall of the other end of the protective core 1 and the inner peripheral wall of the other end of the protective sleeve 2 are provided with chamfers 3, and the chamfers 3 facilitate the assembly of the inner and outer walls of the thin-walled cylinder component 100 with the protective core 1 and the protective sleeve 2 respectively.
Illustratively, the protective core 1 has a relief groove 4 at one end peripheral wall, and the relief groove 4 is located between the first outer flange 11 and the external thread 12, thereby ensuring that the protective core 1 is screwed to the bottom. Similarly, the outer wall of the protective sleeve 2 is also provided with a tool retracting groove 4, so that the protective sleeve 2 can slide relative to the thin-wall cylinder part 100 until the first inner flange 21 abuts against the end face of the thin-wall cylinder part 100.
Fig. 3 is a flowchart of a method for heat treatment of a thin-walled cylinder component according to an embodiment of the present invention, as shown in fig. 3, where the heat treatment method is based on the heat treatment tool, and the heat treatment method includes:
and S301, screwing the other end of the protective core 1 into an inner hole of the thin-walled cylinder part 100, and enabling the first outer flange 11 to abut against the end face of the thin-walled cylinder part 100.
S302, the protective sleeve 2 is sleeved on the outer peripheral wall of the thin-wall cylinder part 100, and the first inner flange 21 abuts against the end face of the thin-wall cylinder part 100.
S303, quenching the heat treatment tool and the thin-wall cylinder part 100 to obtain an assembly.
S304, separating the assembly, thereby obtaining the quenched thin-walled cylinder component 100.
That is, according to the heat treatment method for the thin-walled cylinder component provided by the embodiment of the invention, the internal thread part and the internal thread of the thin-walled cylinder component 100 can be supported and positioned through the protective core 1, so that the out-of-tolerance deformation of the internal thread is avoided; and the internal thread part of the thin-wall cylinder part 100 is wrapped through the protective sleeve 2, so that the out-of-tolerance deformation of the internal thread caused by the expansion of the outer wall of the internal thread part is avoided, and the deformation of the internal thread of the thin-wall cylinder part 100 after quenching treatment is finally avoided, and the factory requirement is met.
Fig. 4 is a flowchart of another method for heat treatment of a thin-walled cylinder component according to an embodiment of the present invention, as shown in fig. 4, where the heat treatment method is based on the heat treatment tool, and the heat treatment method includes:
and S401, screwing the other end of the protective core 1 into an inner hole of the thin-walled cylinder part 100, and enabling the first outer flange 11 to abut against the end face of the thin-walled cylinder part 100.
And S402, sleeving the protective sleeve 2 on the outer peripheral wall of the thin-walled cylinder part 100, and enabling the first inner flange 21 to abut against the end face of the thin-walled cylinder part 100.
S403, quenching the heat treatment tool and the thin-wall cylinder part 100 to obtain the assembly.
S404, arranging the baffle ring 5, and coaxially abutting the protective sleeve 2 of the assembly above the baffle ring 5 (see fig. 5).
In step S404, the inner diameter of the baffle ring 5 is larger than the inner diameter of the protective sleeve 2 and smaller than the outer diameter of the protective sleeve 2.
In the above embodiment, the baffle ring 5 can separate the thin-walled cylinder component 100 from the protective sheath 2 when the protective core 1 is pressed under the effect that the protective sheath 2 is blocked by the baffle ring.
And S405, extruding the protective core 1 downwards so as to drive the protective core 1, the thin-wall cylinder part 100 and the protective sleeve 2 to be separated.
Specifically: the protective core 1 is extruded by the ram of an oil press.
Illustratively, the ram of the oil press presses the protective core 1 such that the protective core 1 and the thin-walled cylinder component 100 are pressed out of the inner bore of the retainer ring 5 together.
S406, machining the inner wall of the protective sleeve 2 to reduce the inner diameter of the protective sleeve 2.
It is easy to understand that the inner wall of the protective sleeve 2 can be machined to remove the shrinkage dimension of the inner wall of the protective sleeve 2 after quenching, so that the inner diameter of the protective sleeve 2 is restored, and thus, when the next thin-wall cylinder part 100 is assembled, the clearance fit between the inner peripheral wall of the other end of the protective sleeve 2 and the outer peripheral wall of the thin-wall cylinder part 100 can be still realized, and the reuse of the heat treatment tool is realized.
S407, screwing and separating the thin-walled cylinder component 100 and the protective core 1.
The heat treatment of the thin-walled cylinder component 100 can be achieved by the heat treatment method described above, and the internal thread at the internal thread portion on the thin-walled cylinder component 100 is not deformed.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (7)
1. The heat treatment tool for the thin-wall cylinder part is characterized by comprising a protection core (1) and a protection sleeve (2);
the protection core (1) is of an annular structure, an inner hole of the protection core (1) is used for being communicated with an inner hole of a thin-wall cylinder part (100), a first outer flange (11) which is coaxially arranged is arranged on the outer peripheral wall of one end of the protection core (1), the first outer flange (11) is used for propping against the end face of the thin-wall cylinder part (100), the outer diameter of the first outer flange (11) is smaller than that of the thin-wall cylinder part (100), an outer thread (12) is arranged on the outer peripheral wall of the other end of the protection core (1) so as to be matched with the inner thread of the thin-wall cylinder part (100), a second inner flange (13) which is coaxially arranged is arranged on the inner peripheral wall of the protection core (1), and the second inner flange (13) is positioned at one end of the protection core (1);
the inner peripheral wall of one end of the protective sleeve (2) is provided with a first inner flange (21) which is coaxially arranged, the inner diameter of the first inner flange (21) is larger than the inner diameter of the thin-wall cylinder part (100), and the inner peripheral wall of the other end of the protective sleeve (2) is used for being in clearance fit with the outer peripheral wall of the thin-wall cylinder part (100).
2. The heat treatment tool for the thin-walled cylinder component according to claim 1 is characterized in that chamfer angles (3) are formed on the outer peripheral wall of the other end of the protective core (1) and the inner peripheral wall of the other end of the protective sleeve (2).
3. A heat treatment fixture for thin-walled cylinder parts according to claim 1 characterized in that the protective core (1) has a relief groove (4) at one end peripheral wall and the relief groove (4) is located between the first outer flange (11) and the external thread (12).
4. A heat treatment method for a thin-walled cylinder component, characterized in that the heat treatment method is based on the heat treatment tool according to any one of claims 1-3, the heat treatment method comprising:
screwing the other end of the protective core (1) into an inner hole of the thin-wall cylinder part (100) and enabling the first outer flange (11) to abut against the end face of the thin-wall cylinder part (100);
the protective sleeve (2) is sleeved on the peripheral wall of the thin-wall cylinder part (100), and the first inner flange (21) is abutted against the end face of the thin-wall cylinder part (100);
quenching the heat treatment tool and the thin-wall cylinder part (100) to obtain an assembly;
separating the assembly to obtain the quenched thin-walled cylinder component (100).
5. A heat treatment method for thin-walled cylinder components according to claim 4 characterized in that the separating of the assembly to obtain a quenched thin-walled cylinder component (100) comprises:
arranging a baffle ring (5), coaxially abutting the protective sleeve (2) of the assembly above the baffle ring (5), wherein the inner diameter of the baffle ring (5) is larger than the inner diameter of the protective sleeve (2) and smaller than the outer diameter of the protective sleeve (2);
the protective core (1) is pressed downwards, so that the protective core (1), the thin-wall cylinder part (100) and the protective sleeve (2) are driven to be separated;
and screwing and separating the thin-wall cylinder part (100) and the protective core (1).
6. A heat treatment method for thin-walled cylinder components according to claim 5 characterized in that the pressing down of the protective core (1) to bring the protective core (1), the thin-walled cylinder component (100) and the protective sheath (2) apart comprises:
the protective core (1) is extruded through a pressure head of an oil press, so that the protective core (1), the thin-wall cylinder part (100) and the protective sleeve (2) are driven to be separated.
7. A heat treatment method for thin-walled cylinder components according to claim 5 characterized in that after the downward pressing of the protective core (1) to bring the protective core (1), the thin-walled cylinder components (100) and the protective sheath (2) apart, the heat treatment method comprises:
and turning the inner wall of the protective sleeve (2) to reduce the inner diameter of the protective sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110904026.9A CN113699330B (en) | 2021-08-06 | 2021-08-06 | Heat treatment tool and heat treatment method for thin-wall cylinder parts |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110904026.9A CN113699330B (en) | 2021-08-06 | 2021-08-06 | Heat treatment tool and heat treatment method for thin-wall cylinder parts |
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| CN113699330B true CN113699330B (en) | 2023-04-28 |
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| CN202246767U (en) * | 2011-07-07 | 2012-05-30 | 四川柳河齿轮有限公司 | Device for controlling heat treatment deformation of thin wall parts of gear sleeve and gear ring |
| CN204644405U (en) * | 2015-03-28 | 2015-09-16 | 诸暨宝锐齿轮有限公司 | Thin-wall gear quenching frock |
| CN210367882U (en) * | 2019-06-13 | 2020-04-21 | 溧阳市中豪热处理有限公司 | Tool for carburizing and quenching thin-wall inner gear ring |
| CN210506447U (en) * | 2019-09-16 | 2020-05-12 | 重庆清平机械有限责任公司 | Tool for heat treatment of thin-wall ring parts |
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- 2021-08-06 CN CN202110904026.9A patent/CN113699330B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008240114A (en) * | 2007-03-28 | 2008-10-09 | High Frequency Heattreat Co Ltd | Restrained quenching apparatus for thin plate member and method therefor |
| EP3054018A1 (en) * | 2015-02-05 | 2016-08-10 | Härterei Reese Bochum GmbH | Batching device for the stable heat treatment of workpieces |
| CN107746913A (en) * | 2017-10-11 | 2018-03-02 | 中国航发南方工业有限公司 | Quenching core and process for quenching for cylindric steel thin-walled parts |
| CN112238555A (en) * | 2020-09-02 | 2021-01-19 | 湖北三江航天险峰电子信息有限公司 | Machining tool and machining method for gas valve core |
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