CN104959507A - Tool and method for high temperature alloy annular element forging - Google Patents
Tool and method for high temperature alloy annular element forging Download PDFInfo
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- CN104959507A CN104959507A CN201510271719.3A CN201510271719A CN104959507A CN 104959507 A CN104959507 A CN 104959507A CN 201510271719 A CN201510271719 A CN 201510271719A CN 104959507 A CN104959507 A CN 104959507A
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- high temperature
- temperature alloy
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Abstract
The invention discloses a tool and method for high temperature alloy annular element forging, belonging to the field of metallurgy forging. The tool includes a base, at least two support plates, and a core rod, the base is provided with multiple pairs of installing positions in different intervals, the at least two support plates are respectively arranged on the different installing positions of the base and the interval between the two support plates is adjusted by changing the installing positions, and the core rod is movably arranged on the two support plates. The invention further provides a high temperature alloy annular element forging method using the tool. The tool with the support plates that are adjustable in interval serves as the tool for forging, a conventional high temperature alloy annular element forging method is changed, tripods are not needed to be replaced for many times, the steps of the high temperature alloy annular element forging are simplified, the time for replacing the tripods during the conventional high temperature alloy annular element forging is saved, only the interval between the support plates of the matched tool needs to be adjusted, and sets of tripods in different specifications are not needed to be prepared. Therefore, the efficiency for high temperature alloy annular element production is improved, the labor intensity of workers is reduced, and the manufacturing cost of the sets of tripods is saved.
Description
Technical field
The invention belongs to sinter forging field, particularly a kind of superalloy annular part supporting frock of forging and method.
Background technology
Superalloy annular part is mainly used in the aerospace fields such as aero-engine casing, and under the anti-corrosion operating mode of high temperature such as civilian steam turbine, petrochemical industry.Along with the development that China's industrialization is built, other applications of superalloy annular part are also progressively being expanded, and demand is increasing.As energy source and power, many industrial departments such as petrochemical industry.
Because superalloy annular part operating ambient temperature is high, and generally work under air atmosphere or the gaseous environment that is corrosive, so superalloy annular part not only needs to possess high mechanical strength, also need to possess excellent anti-oxidant, corrosive nature.But superalloy annular part forging temperature interval is narrow, forging shape, technique are comparatively complicated, in process of production very easily because misoperation, cause ring forging failure.This production being superalloy annular part brings many difficulties.
Traditional high temperature alloy ring forging is forged on the saddle support of different size by blank, reaming on the saddle support that namely elder generation is less in plug size, saddle support spacing is shorter, along with the change of billet size, changes saddle support and the plug of different size.The time of such replacing saddle support is longer, and needs the saddle support of preparation many covers different size, and therefore production efficiency is lower higher with labor strength, and many cover saddle supports also increase production cost.
Summary of the invention
Based on the problem existing for above-mentioned prior art, the invention provides a kind of without the need to changing saddle support, simplifying superalloy annular part forging frock and the method for forging process.
For solving the problems of the technologies described above, the invention provides a kind of high temperature alloy ring forging frock, this frock comprises:
Base, which is provided with the installation position that multipair spacing is different;
At least two gripper shoes, are arranged on the different installation positions of described base respectively, by changing the spacing of installing between described two gripper shoes of potential energy adjustment;
Plug, is movably arranged in described two gripper shoes.
The present invention also provides a kind of high temperature alloy ring forging method, adopts frock of the present invention, comprises the following steps:
The first step, puts into heating furnace homogeneous heating by high temperature alloy blank;
Second step, on the plug described high temperature alloy blank heated being placed on described frock, reaming forms high temperature alloy ring, start hydraulic press to forge described high temperature alloy ring, rotate the plug of described frock and described high temperature alloy ring in forging process, until complete this pore widening step;
3rd step, when the height of described high temperature alloy ring and internal diameter increase, after lower thickness, new spec plug is changed to described frock, and the gripper shoe spacing adjusting this frock continues to carry out reaming to described high temperature alloy ring, repeat this step until described high temperature alloy ring reaches design size, namely complete the forging of this high temperature alloy ring.
Beneficial effect of the present invention is: by adopting the frock of gripper shoe adjustable interval as the matching tooling of forging, change existing high temperature alloy ring forging method, without the need to repeatedly changing saddle support, simplify forging high-temperature alloy rings forging step, eliminate the conventional high-temperature alloy rings forging required time changing saddle support, only need the gripper shoe spacing adjusting matching tooling, and do not need the saddle support preparing many cover different sizes, therefore improve the efficiency that high temperature alloy ring is produced and the labour intensity reducing workman, also eliminate the cost of manufacture of many cover saddle supports.Tool structure provided by the present invention is simple, reasonable in design, easy to maintenance.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation of the high temperature alloy ring forging frock that Fig. 1 provides for the embodiment of the present invention;
The base schematic diagram of the high temperature alloy ring forging frock that Fig. 2 provides for the embodiment of the present invention;
The supporting plate structure schematic diagram of the high temperature alloy ring forging frock that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
Be clearly and completely described the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
Figure 1 shows that a kind of high temperature alloy ring forging frock of the embodiment of the present invention, can be used in forging high-temperature alloy rings as matching tooling, this frock comprises: base, which is provided with the different installation position of multipair spacing (understructure as described in Figure 2); At least two gripper shoes, are arranged on the different installation positions of described base respectively, by changing the spacing of installing between described two gripper shoes of potential energy adjustment; Plug, is movably arranged in described two gripper shoes.
In above-mentioned frock, understructure as described in Figure 2, by horizontal plate body 11, form with the riser 13 riser 12 bottom horizontal plate body 11 and horizontal plate body 11 being in rear end, the installation position that multipair spacing on base is different is bolt hole, and two gripper shoes to be coordinated from bolt by bolt hole that it is arranged and are arranged on respectively on the different installation positions of base.Bolt hole as installation position is in riser place.
In above-mentioned frock, as shown in Figure 3, along being provided with the circular groove placing plug in gripper shoe, plug is movably arranged in gripper shoe by circular groove supporting plate structure.
In above-mentioned frock, plug one end is provided with the handle rotating plug; In ring forging process, plug relies on two ends to support ring forging institute mineralization pressure, simultaneously plug also will to bear in forging process ring to the wearing and tearing of plug, and in order to lower labour intensity and forging efficiency, diameter of mandrel again can not be too large, the mould steel H13 that plug selects strength character excellent, wear-resisting is prepared from, mandrel structure and existing mandrel structure basically identical.
Concrete, above-mentioned frock is made up of base, two gripper shoes, plug and bolts, base is provided with the different bolt hole of multipair spacing, each bolt hole is all supporting with Bolt sizes, this bolt hole installs gripper shoe as installation position, two gripper shoes being equipped with the through hole with bolt matching, by adjusting the bolt hole that two gripper shoes are installed, just can adjusting the spacing between two gripper shoes easily; In gripper shoe, edge is with the circular groove placing plug simultaneously, and plug one end of various different size all possesses the handle for rotating plug.
The embodiment of the present invention also provides a kind of high temperature alloy ring forging method, adopts above-mentioned frock as the matching tooling of forging, comprises the following steps:
The first step, puts into heating furnace homogeneous heating by high temperature alloy blank; Preferably, heating furnace can selection standard or nonstandard resistance furnace or steam stove, and acid extraction is determined according to ring material and size, guarantees blank heating region evenly; General according to high temperature alloy blank, heating-up temperature can be: 1160 DEG C; Heat time is: 2 hours.
Second step, on the plug described high temperature alloy blank heated being placed on described frock, reaming forms high temperature alloy ring, start hydraulic press to forge described high temperature alloy ring, rotate the plug of described frock and described high temperature alloy ring in forging process, until complete this pore widening step;
3rd step, when the height of described high temperature alloy ring and internal diameter increase, after lower thickness, new spec plug is changed to described frock, and the gripper shoe spacing adjusting this frock continues to carry out reaming to described high temperature alloy ring, repeat this step until described high temperature alloy ring reaches design size, namely complete the forging of this high temperature alloy ring.In reality, according to concrete technology, if necessary, need repeatedly change plug, adjust spacing reaming in frock between two gripper shoes, until blank forging is become required size specification.
Below in conjunction with specific embodiment, frock of the present invention and method are described further.
Embodiment 1
The present embodiment provides a kind of high temperature alloy ring forging method, adopt frock of the present invention as matching tooling, the blank of forging high-temperature alloy rings is Ni-33Cr-5W-3Mo high temperature alloy, the ring diameter be finally forged into is 450mm, internal diameter is 400mm, is highly 150mm: adopt following steps:
(1) be 450mm by external diameter under room temperature, internal diameter is 250mm, is highly heated to 1100 DEG C for resistance furnace put into by the Ni-33Cr-5W-3Mo high temperature alloy blank of 55mm, is incubated 2 hours;
(2) the complete blank of heating is placed on reaming on the plug that diameter is 180mm, in the process of reaming, rotates plug and forging and stamping ring simultaneously;
(3) when ring height and internal diameter increase, thickness thinning after, change plug and adjustment gripper shoe distance that diameter is 250mm; Change plug, adjustment gripper shoe apart from rear continuation reaming in frock; Finally changing diameter is that 380mm plug carries out reaming to blank; In forging process, if blank temperature is lower than 950 DEG C, is melted down by blank and within 2 hours, forge 1100 DEG C of insulations again, until forging ring to meeting external diameter is 450mm, internal diameter is 400mm, is highly 150mm, namely completes the forging of high temperature alloy ring.
Embodiment 2
The present embodiment provides a kind of high temperature alloy ring forging method, adopt frock of the present invention as matching tooling, the blank of forging high-temperature alloy rings is Ni-18Cr-6W-4Mo high temperature alloy, the ring diameter be finally forged into is 200mm, internal diameter is 160mm, be highly 80mm, adopt following steps:
(1) be 200mm by external diameter under room temperature, internal diameter is 80mm, and ring height is that the Ni-18Cr-6W-4Mo high temperature alloy blank of 40mm is put into resistance furnace and is heated to 1100 DEG C, is incubated 2 hours;
(2) the complete blank of heating is placed on reaming on the plug that diameter is 50mm; In the process of reaming, rotate plug and forging and stamping ring simultaneously;
(3) when ring height and internal diameter increase, thickness thinning after, successively changing diameter is that the plug of 80mm, 120mm, 150mm carries out reaming; In forging process, if blank temperature is lower than 950 DEG C, is melted down by blank and within 2 hours, forge 1100 DEG C of insulations again, until forging ring to meeting external diameter is 200mm, internal diameter is 160mm, is highly 80mm, namely completes the forging of high temperature alloy ring.
The high temperature alloy ring adopting forging method of the present invention to produce possesses excellent mechanical performance, and steady quality.The present invention has the advantage that step is simple, cost is low, production efficiency is high.
Embodiment 3
The present embodiment provides a kind of forging method of superalloy annular part, for the preparation of the superalloy annular part of steam turbine, adopts frock of the present invention as forging frock, comprises the following steps:
High temperature alloy blank is put into resistance-heated furnace heating: heating furnace selection standard chamber type electric resistance furnace, heating-up temperature is 1160 DEG C, heating and thermal insulation time 2 h; Blank is placed on drop-bottom with holes, guarantees that blank heating region is even;
Reaming on the plug high temperature alloy blank heated being placed on frock, penetrates the high temperature alloy blank heated, starts hydraulic press, be forged into high temperature alloy ring to this high temperature alloy blank by the plug that size is suitable; In the process of forging, rotate the ring of plug and forging and stamping simultaneously; When temperature is down to 950 DEG C, blank is melted down insulation 1 hour, then continue forging;
When the gripper shoe width of high temperature alloy ring height close to frock, change plug and adjustment gripper shoe width (distance namely between gripper shoe), continuation reaming, until high temperature alloy ring is forged successfully.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (8)
1. a high temperature alloy ring forging frock, is characterized in that, this frock comprises:
Base, which is provided with the installation position that multipair spacing is different;
At least two gripper shoes, are arranged on the different installation positions of described base respectively, by changing the spacing of installing between described two gripper shoes of potential energy adjustment;
Plug, is movably arranged in described two gripper shoes.
2. high temperature alloy ring forging frock according to claim 1, is characterized in that, along being provided with the circular groove placing described plug in described gripper shoe, described plug is movably arranged in described gripper shoe by described circular groove.
3. high temperature alloy ring forging frock according to claim 1 and 2, it is characterized in that, the installation position that the multipair spacing on described base is different is bolt hole.
4. high temperature alloy ring forging frock according to claim 1 and 2, is characterized in that, described two gripper shoes to be coordinated from bolt by the bolt hole that it is arranged and are arranged on respectively on the different installation positions of described base.
5. high temperature alloy ring forging frock according to claim 1 and 2, is characterized in that, described plug one end is provided with the handle rotating plug;
Described plug adopts mould steel H13 to be prepared from.
6. a high temperature alloy ring forging method, is characterized in that, the frock described in any one of employing the claims 1 to 5, as the matching tooling of forging, comprises the following steps:
The first step, puts into heating furnace homogeneous heating by high temperature alloy blank;
Second step, on the plug described high temperature alloy blank heated being placed on described frock, reaming forms high temperature alloy ring, start hydraulic press to forge described high temperature alloy ring, the plug of described frock and described high temperature alloy ring is rotated in forging process, when temperature is down to 950 DEG C, blank is melted down insulation 1 hour, then continue forging, until complete this pore widening step;
3rd step, when the height of described high temperature alloy ring and internal diameter increase, lower thickness can not to remain valid after the size of processing to plug, new spec plug is changed to described frock, and the gripper shoe spacing adjusting this frock continues to carry out reaming to described high temperature alloy ring, repeat this step until described high temperature alloy ring reaches design size, namely complete the forging of this high temperature alloy ring.
7. high temperature alloy ring forging method according to claim 6, is characterized in that, described heating furnace adopts resistance furnace or steam stove.
8. the high temperature alloy ring forging method according to claim 6 or 7, it is characterized in that, described heating-up temperature is: 1160 DEG C;
Heat time is: 2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271719.3A CN104959507A (en) | 2015-05-25 | 2015-05-25 | Tool and method for high temperature alloy annular element forging |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271719.3A CN104959507A (en) | 2015-05-25 | 2015-05-25 | Tool and method for high temperature alloy annular element forging |
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| Publication Number | Publication Date |
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| CN104959507A true CN104959507A (en) | 2015-10-07 |
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| CN201510271719.3A Pending CN104959507A (en) | 2015-05-25 | 2015-05-25 | Tool and method for high temperature alloy annular element forging |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001367A (en) * | 2016-06-21 | 2016-10-12 | 太仓市顺昌锻造有限公司 | Air hammer device for forging |
| CN106424507A (en) * | 2016-08-31 | 2017-02-22 | 安徽马钢重型机械制造有限公司 | Rail type free forging mandrel supporter and using method thereof |
-
2015
- 2015-05-25 CN CN201510271719.3A patent/CN104959507A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001367A (en) * | 2016-06-21 | 2016-10-12 | 太仓市顺昌锻造有限公司 | Air hammer device for forging |
| CN106424507A (en) * | 2016-08-31 | 2017-02-22 | 安徽马钢重型机械制造有限公司 | Rail type free forging mandrel supporter and using method thereof |
| CN106424507B (en) * | 2016-08-31 | 2019-04-09 | 安徽马钢重型机械制造有限公司 | A kind of rail mounted open die forging saddle support and its application method |
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Application publication date: 20151007 |