CN202116598U - Hardening tray for heat processing of cylinder type forging pieces with thick walls - Google Patents
Hardening tray for heat processing of cylinder type forging pieces with thick walls Download PDFInfo
- Publication number
- CN202116598U CN202116598U CN 201120162488 CN201120162488U CN202116598U CN 202116598 U CN202116598 U CN 202116598U CN 201120162488 CN201120162488 CN 201120162488 CN 201120162488 U CN201120162488 U CN 201120162488U CN 202116598 U CN202116598 U CN 202116598U
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- cylinder type
- annulus
- thick
- type forging
- workpiece
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The utility model discloses a hardening tray for heat processing of cylinder type forging pieces with thick walls, which comprises an inner ring and an outer ring, wherein the outer ring is sleeved on the periphery of the inner ring, and the two rings are concentrically arranged and integrally formed. An inner hole of the inner ring is in a horn mouth shape, and the minimum diameter of the horn mouth is slightly larger than the diameter of an inner hole of a workpiece. The periphery of the inner ring is rounded, and the external diameter of the inner ring is slightly smaller than that of the workpiece. The hardening tray is used for heat processing of pipe-connection forging pieces on inlets and outlets of pressure containers in nuclear power stations, can effectively improve flow state close to workpieces during a heat processing hardening process, and accordingly improves cooling state of the workpieces during a heat processing process, reinforces water-cooling effect, and finally improves mechanical performance of the forging pieces.
Description
Technical field
The utility model relates to a kind of thermal treatment and uses frock, is specifically related to a kind of heat treated quenching pallet of thick-walled cylinder type forging that is used for.
Background technology
It is the thick-walled cylinder type forging that forging is taken in the import and export of pressurized-water reactor nuclear power plant pressurized vessel, and its wall thickness surpasses 500mm.For this thick-walled cylinder type forging, existing heat treating method is: as shown in Figure 1, use the pallet 2 that has plug 1, and workpiece 10 is positioned on the pallet 2 centre hole that plug 1 passes; Make workpiece 10 and plug 1 and pallet 2 heating, shrend.
There is following defective in this heat treating method:
1, in heat treatment process, the plug 1 of workpiece 10 centre holes placement is with workpiece 10 heating, shrend, and plug 1 can hinder the current of workpiece 10 inside when quenching significantly, thereby influences the cooling performance of workpiece 10;
2, plug 1 heats, cools off with workpiece 10, and its heat is to take away through the current of its inwall, the cooling performance of the workpiece 10 so heat of plug 1 self has also slowed down.
And the cooling conditions of workpiece 10 is not good, and it is defective to be prone to impelling strength, causes product defective.
The utility model content
The utility model technical problem to be solved provides a kind of heat treated quenching pallet of thick-walled cylinder type forging that is used for, and it can improve the cooling performance of workpiece.
For solving the problems of the technologies described above, the technical solution that the utility model is used for the heat treated quenching pallet of thick-walled cylinder type forging is:
Comprise interior annulus, outer toroid, the outer rim of annulus in outer toroid is sheathed on, two annulus are provided with one heart; Two annulus are one-body molded.
The endoporus of annulus is a hydraucone in said, and bell-mouthed minimum diameter is slightly larger than the diameter of bore of workpiece.The outer rim of annulus is circular in said, and the external diameter of interior annulus is slightly less than the external diameter of workpiece.
Be connected through stiffening web between annulus and the outer toroid in said.
The thickness of said outer toroid is than the little 250mm of thickness of interior annulus.
Annulus and/or outer toroid axially is provided with a plurality of pod apertures in said.
The top of annulus is provided with a plurality of diversion trenchs that radially extend in said.The radial dimension of the diversion trench of said outer toroid is 400mm.
The technique effect that the utility model can reach is:
The utility model is used for nuclear plant pressure vessels and imports and exports the thermal treatment of taking over forging; Can effectively improve near the streamflow regime the workpiece in the heat-treatment quenching process; Thereby improve the state of cooling of workpiece in heat treatment process, strengthen the water-cooled effect, finally improve the mechanical property of forging.
The utility model is simple in structure, and is easy to use.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:
Fig. 1 is the synoptic diagram that adopts prior art that the thick-walled cylinder type forging is heat-treated;
Fig. 2 is the synoptic diagram that the utility model is used for the heat treated quenching pallet of thick-walled cylinder type forging;
Fig. 3 is an A-A sectional view among Fig. 2;
Fig. 4 adopts the utility model to be used for the synoptic diagram that the heat treated quenching pallet of thick-walled cylinder type forging is heat-treated the thick-walled cylinder type forging.
Description of reference numerals among the figure:
1 is plug, and 2 is pallet,
10 is workpiece, and 20 is pallet,
30 is suspender,
21 is interior annulus, and 211 is diversion trench,
22 is outer toroid, and 221 is diversion trench.
Embodiment
Like Fig. 2, shown in Figure 3; The utility model is used for the heat treated quenching pallet of thick-walled cylinder type forging; Be used for wall thickness is heat-treated above the thick-walled cylinder type forging of 500mm annulus 21, outer toroid 22 in comprising, the outer rim of annulus 21 in outer toroid 22 is sheathed on; Two annulus 21,22 are provided with one heart, are connected through stiffening web between interior annulus 21 and the outer toroid 22;
The thickness of outer toroid 22 makes the big outer toroid of workpiece and quality 22 keep a segment distance than the little 250mm of thickness of interior annulus 21, helps reducing the disadvantageous effect of the heat of pallet to work-piece cools own.
The top of interior annulus 21 is provided with 8 diversion trenchs 211 that radially extend, and the effect of diversion trench 211 is coolings of strengthening the workpiece bottom;
The top of outer toroid 22 is provided with 8 diversion trenchs 221 that radially extend, and the radial dimension of diversion trench 221 is 400mm, and during quenching, a large amount of water can be passed through with cooling workpiece outer wall by diversion trench 221.
The endoporus of interior annulus 21 is a hydraucone, and bell-mouthed minimum diameter is slightly larger than the diameter of bore of workpiece, can make workpiece have more water to get into nozzle inner wall when string is moving in water downwards like this, strengthens the cooling performance of workpiece inwall.
The outer rim of interior annulus 21 is circular, and the external diameter of interior annulus is slightly less than the external diameter of workpiece, and pallet is to the interference of workpiece outer wall current when moving to reduce in water, to go here and there up and down as far as possible.
The method of use of the utility model is as shown in Figure 4, and workpiece 10 is placed on heating on the utility model quenching pallet 20, and 2 or 3 suspenders 30 of employing cool off pallet 20 and workpiece 10 handling to tank together during quenching.
The utility model need not to use plug, and the water-cooled effect of workpiece inwall is obviously strengthened.
The endoporus of the utility model designs for hydraucone, and the discharge of inwall is further strengthened cooling performance in the time of can strengthening workpiece downwards string is moving.
The utility model can reduce the influence of the heat of pallet to cooling performance own.
The utility model is provided with the axial diversion hole, and it is as far as possible little that workpiece outer wall current receive the interference of pallet in the time of can guaranteeing to quench.
The utility model is provided with radially diversion trench, can improve the cooling performance of workpiece bottom.
Claims (8)
1. one kind is used for the heat treated quenching pallet of thick-walled cylinder type forging, is used for wall thickness is heat-treated above the thick-walled cylinder type forging of 500mm, it is characterized in that: comprise interior annulus, outer toroid, and the outer rim of annulus in outer toroid is sheathed on, two annulus are provided with one heart; Two annulus are one-body molded.
2. the heat treated quenching pallet of thick-walled cylinder type forging that is used for according to claim 1 is characterized in that: the endoporus of annulus is a hydraucone in said, and bell-mouthed minimum diameter is slightly larger than the diameter of bore of workpiece.
3. the heat treated quenching pallet of thick-walled cylinder type forging that is used for according to claim 1 and 2 is characterized in that: the outer rim of annulus is for circular in said, and the external diameter of interior annulus is slightly less than the external diameter of workpiece.
4. the heat treated quenching pallet of thick-walled cylinder type forging that is used for according to claim 1 is characterized in that: be connected through stiffening web between annulus and the outer toroid in said.
5. the heat treated quenching pallet of thick-walled cylinder type forging that is used for according to claim 1, it is characterized in that: the thickness of said outer toroid is than the little 250mm of thickness of interior annulus.
6. the heat treated quenching pallet of thick-walled cylinder type forging that is used for according to claim 1 is characterized in that: annulus and/or outer toroid axially is provided with a plurality of pod apertures in said.
7. the heat treated quenching pallet of thick-walled cylinder type forging that is used for according to claim 1 is characterized in that: the top of annulus is provided with a plurality of diversion trenchs that radially extend in said.
8. the heat treated quenching pallet of thick-walled cylinder type forging that is used for according to claim 7, it is characterized in that: the radial dimension of the diversion trench of said outer toroid is 400mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120162488 CN202116598U (en) | 2011-05-20 | 2011-05-20 | Hardening tray for heat processing of cylinder type forging pieces with thick walls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120162488 CN202116598U (en) | 2011-05-20 | 2011-05-20 | Hardening tray for heat processing of cylinder type forging pieces with thick walls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202116598U true CN202116598U (en) | 2012-01-18 |
Family
ID=45457679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120162488 Expired - Fee Related CN202116598U (en) | 2011-05-20 | 2011-05-20 | Hardening tray for heat processing of cylinder type forging pieces with thick walls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202116598U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627873A (en) * | 2012-08-22 | 2014-03-12 | 上海重型机器厂有限公司 | Heat treatment method of ellipsoidal head forging used for CAP1400 steam generator |
| CN107130095A (en) * | 2016-02-26 | 2017-09-05 | 株式会社三井高科技 | Pallet and heat treatment method |
| CN109321722A (en) * | 2018-10-09 | 2019-02-12 | 嘉兴中茂工业炉有限公司 | A kind of spheroidizing annealing furnace |
-
2011
- 2011-05-20 CN CN 201120162488 patent/CN202116598U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627873A (en) * | 2012-08-22 | 2014-03-12 | 上海重型机器厂有限公司 | Heat treatment method of ellipsoidal head forging used for CAP1400 steam generator |
| CN103627873B (en) * | 2012-08-22 | 2016-01-06 | 上海重型机器厂有限公司 | The CAP1400 vapour generator heat treating method of elipse head forging |
| CN107130095A (en) * | 2016-02-26 | 2017-09-05 | 株式会社三井高科技 | Pallet and heat treatment method |
| US10365042B2 (en) | 2016-02-26 | 2019-07-30 | Mitsui High-Tec, Inc. | Tray and heat treatment method |
| CN107130095B (en) * | 2016-02-26 | 2020-06-02 | 株式会社三井高科技 | Tray and heat treatment method |
| CN109321722A (en) * | 2018-10-09 | 2019-02-12 | 嘉兴中茂工业炉有限公司 | A kind of spheroidizing annealing furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20170520 |