CN107984166A - The abdominal cavity processing method of horizonally split formula centrifugal compressor casing - Google Patents
The abdominal cavity processing method of horizonally split formula centrifugal compressor casing Download PDFInfo
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- CN107984166A CN107984166A CN201711059185.3A CN201711059185A CN107984166A CN 107984166 A CN107984166 A CN 107984166A CN 201711059185 A CN201711059185 A CN 201711059185A CN 107984166 A CN107984166 A CN 107984166A
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- casing
- support ring
- positioning table
- partition plate
- lower casing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention discloses the abdominal cavity processing method of horizonally split formula centrifugal compressor casing, comprise the following steps：The roughing of ring positioning table and partition plate positioning table is supported in the casing of centrifugal compressor；Stress-removal processing is carried out to the casing after roughing by being heat-treated；Carry out finish-milling respectively to the support ring positioning table in the casing after stress-removal and partition plate positioning table and smart thorax is processed；Support ring and partition plate are installed in the casing by the support ring positioning table and partition plate positioning table；Finish-milling processing is carried out to the support ring in the casing and partition plate.The present invention can greatly reduce equipment processing cost and the cost of charp tool, and all be that can carry out promotion and application in the technics institution of casing in the future and Workshop Production.
Description
Technical field
The invention belongs to centrifugal compressor technical field, and in particular to the abdominal cavity of horizonally split formula centrifugal compressor casing adds
Work method.
Background technology
Horizonally split formula centrifugal compressor has the characteristics of axial admission, radial direction outlet, is similar to axis stream and adds centrifugal pressure
Contracting machine, but since the particularity of casing structure, its processing technology are but in space state.Due to horizonally split formula centrifugal compressed
The adjuster of machine and the positioning datum of type ring all lean on the support ring coordinated with casing to ensure, and according to existing processing technology,
Device assembling is adjusted in the support ring of parts processing, it is difficult to ensure that the concentricity 0.02mm's that casing is assembled with adjuster will
Ask, therefore the structure processing for the flat cutting fraction centrifugal compressor casing that feeds water brings unthinkable difficulty, and with existing
Equipment and processing technology are unable to reach design requirement.
At present, the prior art is to processing casing abdominal cavity by using gantry mill, but numerical control gantry mill equipment price is held high
It is expensive, take up a large area, highly energy-consuming, production cost is also higher.The casing structure of horizonally split formula centrifugal compressor is complicated at the same time,
Upper and lower casing abdominal cavity compact dimensions and less than normal, according to conventional casing abdominal cavity processing technology, casing abdominal cavity should be in boring and milling two
After end bearing seal area, dismounting, turns gantry mill processing casing abdominal cavity, but because of stator workshop gantry mill accessories mill-head size
Greatly, low precision, it is difficult to ensure that the requirement of casing and the concentricity 0.02mm of adjuster assembling, if being processed by conventional process experiences
Suitable process equipment can only be found by external coordination or purchase the suitable gantry mill accessory head of size again, could solved such
The technological difficulties of abdominal cavity processing.
The content of the invention
For above-mentioned problems of the prior art, the present invention provides the abdomen of horizonally split formula centrifugal compressor casing
Chamber processing method.
In order to achieve the above object, the technical solution adopted in the present invention is：
The abdominal cavity processing method of horizonally split formula centrifugal compressor casing, comprises the following steps：
The roughing of ring positioning table and partition plate positioning table is supported in the casing of centrifugal compressor；
Stress-removal processing is carried out to the casing after roughing by being heat-treated；
Carry out finish-milling respectively to the support ring positioning table in the casing after stress-removal and partition plate positioning table and smart thorax adds
Work；
Support ring and partition plate are installed in the casing by the support ring positioning table and partition plate positioning table；
Finish-milling processing is carried out to the support ring in the casing and partition plate.
Further, the roughing to the support ring positioning table and partition plate positioning table includes：By gantry mill to described
After the casing of centrifugal compressor carries out first time line, carry out rough milling support ring positioning table, Yi Jisuo respectively in the casing
State the intraperitoneal carry out heavy boring partition plate positioning table of casing, each position needs made allowance in this process, prevent machining deformation and
Eliminate stress deformation.
Further, the first time crossed process is that upper and lower casing horizontal flange processing line is drawn in the casing,
And the lower casing is into and out of air port Flange Plane processing line.
Further, the support ring includes upper and lower support ring, in the processing of the upper and lower support ring, by described in
The outer edge of upper and lower support ring is closed with the matching size of the support ring positioning table in the corresponding upper and lower casing respectively, and
Made allowance at the endoporus formed after the upper and lower support ring splicing.
Further, finish-milling processing is carried out to the support ring positioning table in the casing includes：
By the endoporus of the upper and lower support ring and its split by after the casing centering, by the upper and lower support ring
Outer edge size boring and milling is carried out to the upper and lower casing inside support ring positioning table and partition plate positioning table；
By carry out reconditioning cleaning of the gantry mill to the support ring positioning table and partition plate positioning table, and in the casing
Assemble support ring；
By the upper and lower casing and the upper and lower support ring by its respective split carry out it is levelling after, on described,
In lower casing partition plate positioning table installation partition plate, it is intraperitoneal between two partition plates, by the upper and lower support ring respectively with institute
After stating upper and lower casing compression, and finish-milling is carried out to the split of the upper and lower casing.
Further, the upper and lower casing is pressed and beats surface centering, levelling by split, beats tabular value≤0.04mm.
Further, smart thorax processing is carried out to the partition plate positioning table in the casing to be included：
The lower casing is subjected to plane centering；
The upper casing is assembled on the lower casing, its step includes：
Positioning pin is inserted on the upper casing, and the position of positioning pin is carried out second on the upper and lower casing
Line, positioning pin is inserted into it by second line after making the upper and lower casing mould assembling, and is inserted completely in the positioning pin
After entering in the casing, just allow to carry out right boring to the casing；
Right boring endoporus and groove at support end seal area on the housing, and right boring pressure testing face and chamfering；
On the basis of machined endoporus, table centering, and lower machine described in right boring are made by the centering plane of the lower casing
The bearing block of shell makes the bearing block that conjunction plane, seam allowance and endoporus are required up to size conjunction plane, seam allowance and endoporus；
Threaded hole is processed on the circumference of the upper and lower casing, by the support end bearing area end of the lower casing
The oil return hole in face is worked into desired size requirement；
After the positioning plane at lower casing both ends described in finish-milling, the thread mill drilling in the positioning plane；
After lower casing air outlet Flange Plane described in finish-milling and seam allowance, joint hole, ream flat seat are processed；
Behind the support end end face of upper and lower casing described in boring and milling and seam allowance, threaded hole and chamfering are processed on circumference；
Dismantle the upper casing；
Carry out beating table centering in the bearings at both ends seal area and split of the lower casing, franchise is less than 0.02mm.
Further, the step of lower casing progress centering includes：The lower casing is by its split, support end bearing
Seal area and centering plane carry out centering, the support end bearing gland of the lower casing are assembled, in the split of the lower casing
Flange side carries out centering plane, and each portion in the support end bearing area of the lower casing carries out right boring endoporus, makes in described
After hole reaches estimated size, support end bearing gland is dismantled.
Further, support ring and partition plate are installed in the casing by the support ring positioning table and partition plate positioning table
Installation steps include：The partition plate is fixed on to the upper and lower entrance of the casing by the partition plate positioning table, described
The pin hole and threaded hole that upper and lower casing processing can mutually be fixed with the support ring, the support ring is put into by the support ring
After positioning table, fixed pin is squeezed into pin hole, and ensures to fasten, after be screwed into screw, and examine whether screw has withstood fixed pin
Nail, and firmly, the dead screw of blunderbuss.
Further, finish-milling processing is carried out to the support ring in the casing and partition plate, its step includes：
The upper casing is subjected to centering by its horizontal flange, and by the lower casing using inlet and outlet flange as base
Face, wherein, the upper and lower casing presses endoporus center centering permission≤0.02mm；
The seam allowance on end face and thrust end inner face in the support end seal area of upper and lower casing described in finish-milling, reaches it
Desired size requirement；
The abdominal cavity of upper and lower casing described in finish-milling and support ring endoporus.
The present invention provides the abdominal cavity processing method of horizonally split formula centrifugal compressor casing, pass through the machine of centrifugal compressor
Process support ring positioning table and partition plate positioning table to be connected with support ring and partition plate progress split in shell, and using boring machine to casing
Inside is processed, and makes casing centering convenient, and the process tool of boring machine generally uses common brazed carbide turning tool, therefore can be with
The expense of cutterhead is saved, improves surface roughness, process time is saved, reduces processing cost, it may be said that the method
That implements greatly reduces equipment processing cost and the cost of charp tool, in the technics institution of casing in the future and Workshop Production all
It is that can carry out promotion and application.
Brief description of the drawings
Fig. 1 is the stream of the abdominal cavity processing method of the horizonally split formula centrifugal compressor casing of embodiment of the embodiment of the present invention
Cheng Tu.
Embodiment
To overcome deficiency of the prior art, the present invention provides the abdominal cavity processing side of horizonally split formula centrifugal compressor casing
Method.To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached in the preferred embodiment of the present invention
Figure, is further described in more detail the technical solution in the embodiment of the present invention.In the accompanying drawings, it is same or similar from beginning to end
Label represents same or similar element or has the function of same or like element.Described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for solving
The present invention is released, and is not considered as limiting the invention.Based on the embodiments of the present invention, those of ordinary skill in the art exist
All other embodiments obtained under the premise of creative work are not made, belong to the scope of protection of the invention.Tie below
Attached drawing is closed the embodiment of the present invention is described in detail.
Referring to Fig. 1, the abdominal cavity processing method of horizonally split formula centrifugal compressor casing provided in an embodiment of the present invention, including
Following steps：
S101：The roughing of ring positioning table and partition plate positioning table is supported in the casing of centrifugal compressor；
S102：Stress-removal processing is carried out to the casing after roughing by being heat-treated；
S103：Carry out finish-milling respectively to the support ring positioning table in the casing after stress-removal and partition plate positioning table and smart thorax adds
Work；
S104, by support ring positioning table and partition plate positioning table install support ring and partition plate in casing；
S105, carry out finish-milling processing to the support ring in casing and partition plate.
Step S101 is discussed in detail.
Roughing to support ring positioning table and partition plate positioning table includes：By gantry mill to the casing of centrifugal compressor into
After row is rule for the first time, carry out rough milling support ring positioning table, and the intraperitoneal carry out heavy boring partition plate of casing respectively in casing
Positioning table, each position needs to stay 2mm surpluses in this process, prevents machining deformation and eliminates stress deformation.
Wherein, first time crossed process is that upper and lower casing horizontal flange processing line is drawn in casing, and lower casing
Into and out of air port Flange Plane processing line.
Support ring includes upper and lower support ring, and in the processing of upper and lower support ring, the outer edge of upper and lower support ring is distinguished
Closed with the matching size of the support ring positioning table in corresponding upper and lower casing, and the endoporus formed after the splicing of upper and lower support ring
Stay 3mm surpluses in place.
Step S103 is discussed in detail.
Finish-milling processing is carried out to the support ring positioning table in casing to be included：
(1), by the endoporus of upper and lower support ring and its split by after casing centering, by the outer edge of upper and lower support ring
Size carries out boring and milling to upper and lower casing inside support ring positioning table and partition plate positioning table；
(2), by carry out reconditioning cleaning of the gantry mill to support ring positioning table and partition plate positioning table, and assembled in casing
Support ring；
(3), by upper and lower casing and upper and lower support ring by its respective split carry out it is levelling after, in upper and lower casing
Partition plate positioning table installs partition plate, intraperitoneal between two partition plates, after upper and lower support ring is compressed with upper and lower casing respectively,
And finish-milling is carried out to the split of upper and lower casing.
Wherein, upper and lower casing is pressed and beats surface centering, levelling by split, beats tabular value≤0.04mm.
By thorax milling support ring positioning table, it can ensure the drawing dimensional tolerance and geometric tolerance of casing, so as to assemble
It can accurately ensure fit-up gap size when support ring and diffuser, and then meet between sealing of the rotor in trial run and run
The gap size of gap and type ring and impeller, effective guarantee is provided for final operating test run qualification.
Smart thorax processing is carried out to the partition plate positioning table in casing to be included：
(1) lower casing, is subjected to plane centering；
(2), upper casing is assembled on the lower casing, its step includes：
Positioning pin is inserted on upper casing, and the position of positioning pin rule for the second time on upper and lower casing, second
Line make upper and lower casing mould assembling after positioning pin is inserted into it, and in the fully-inserted casing of positioning pin after, just allow to machine
Shell carries out right boring；
(3), right boring endoporus and groove at the support end seal area on casing, and right boring pressure testing face and chamfering；
(4), on the basis of by machined endoporus, table centering, and the axis of right boring lower casing are beaten by the centering plane of lower casing
Bearing makes bearing block that conjunction plane, seam allowance and endoporus are required up to size conjunction plane, seam allowance and endoporus；
(5), threaded hole is processed on the circumference of upper and lower casing, by returning for the support end bearing area end face of lower casing
Machining of oil hole is required to desired size；
(6), after the positioning plane at finish-milling lower casing both ends, thread mill drilling on the positioning plane；
(7), after finish-milling lower casing air outlet Flange Plane and seam allowance, joint hole, ream flat seat are processed；
(8), after the support end end face of the upper and lower casing of boring and milling and seam allowance, threaded hole and chamfering are processed on circumference；
(9), upper casing is dismantled；
(10), carry out beating table centering in the bearings at both ends seal area and split of lower casing, franchise is less than 0.02mm.
By the partition plate positioning table size in smart thorax casing, it can ensure the drawing dimensional tolerance and geometric tolerance of casing,
So as to can accurately ensure fit-up gap size in assemble in diaphragm, and then fortune when partition plate works when meeting rotor operation
Row flow and the run stability that can improve whole rotor, reduce unit surge, are provided for final operating test run is qualified
Effective guarantee.
Wherein, the step of lower casing progress centering includes：Lower casing presses its split, support end bearing seal area and centering
Plane carries out centering, assembles the support end bearing gland of lower casing, and centering plane is carried out in the split flange side of lower casing,
Each portion in the support end bearing area of lower casing carries out right boring endoporus, after endoporus is reached estimated size, dismantles support end axis
Pressure cap.
Step S104 is discussed in detail.
Installing the installation steps of support ring and partition plate in casing by support ring positioning table and partition plate positioning table includes：Will
Partition plate is fixed on the upper and lower entrance of casing by partition plate positioning table, can mutually be fixed with support ring in the processing of upper and lower casing
Pin hole and threaded hole, after support ring is put into support ring positioning table, fixed pin is squeezed into pin hole, and ensures to fasten, after be screwed into
Screw, and examine whether screw has withstood fixing pin, and firmly, the dead screw of blunderbuss.
Step S105 is discussed in detail.
Finish-milling processing is carried out to the support ring in casing and partition plate, its step includes：
(1) upper casing, is subjected to centering by its horizontal flange, and by lower casing using inlet and outlet flange as basal plane, its
In, upper and lower casing presses endoporus center centering permission≤0.02mm；
(2), the end face in the support end seal area of the upper and lower casing of finish-milling and the seam allowance on the inner face of thrust end, make it up in advance
The requirement of phase size；
(3), the abdominal cavity of the upper and lower casing of finish-milling and support ring endoporus.
In this method, using the partition plate hole size and support ring hole size processed in casing abdominal cavity, workpiece is made
The processing of multiple tracks critical size is completed during clamped one time, so as to effectively raise the tolerance and size in casing
It is required that.Labor intensity during worker's processing has also been greatly reduced at the same time, and has increased work efficiency under identical environment, has subtracted
Process time is lacked.
It should be noted last that above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those of ordinary skill in the art that, can be to the present invention
Technical solution technical scheme is modified or replaced equivalently, without departing from the spirit and scope of technical solution of the present invention, it should all cover
Among scope of the presently claimed invention.
Claims (10)
1. the abdominal cavity processing method of horizonally split formula centrifugal compressor casing, it is characterised in that comprise the following steps：
The roughing of ring positioning table and partition plate positioning table is supported in the casing of centrifugal compressor；
Stress-removal processing is carried out to the casing after roughing by being heat-treated；
Carry out finish-milling respectively to the support ring positioning table in the casing after stress-removal and partition plate positioning table and smart thorax is processed；
Support ring and partition plate are installed in the casing by the support ring positioning table and partition plate positioning table；
Finish-milling processing is carried out to the support ring in the casing and partition plate.
2. the abdominal cavity processing method of horizonally split formula centrifugal compressor casing according to claim 1, it is characterised in that right
The roughing of the support ring positioning table and partition plate positioning table includes：The casing of the centrifugal compressor is carried out by gantry mill
After ruling for the first time, carry out rough milling support ring positioning table in the casing respectively, and the intraperitoneal carry out of the casing is thick
Boring partition plate positioning table, each position needs made allowance in this process, prevents machining deformation and eliminates stress deformation.
3. the abdominal cavity processing method of horizonally split formula centrifugal compressor casing according to claim 2, it is characterised in that institute
State first time crossed process be in the casing draw upper and lower casing horizontal flange processing line, and the lower casing into and out of
Tuyere flange plane machining line.
4. the abdominal cavity processing method of horizonally split formula centrifugal compressor casing according to claim 1, it is characterised in that institute
Stating support ring includes upper and lower support ring, in the processing of the upper and lower support ring, by the outside fate of the upper and lower support ring
Do not closed with the matching size of the support ring positioning table in the corresponding upper and lower casing, and after the upper and lower support ring splicing
Made allowance at the endoporus of formation.
5. the abdominal cavity processing method of horizonally split formula centrifugal compressor casing according to claim 4, it is characterised in that right
Support ring positioning table in the casing, which carries out finish-milling processing, to be included：
By the endoporus of the upper and lower support ring and its split by after the casing centering, by the outer of the upper and lower support ring
Marginal dimension carries out boring and milling to the upper and lower casing inside support ring positioning table and partition plate positioning table；
By carry out reconditioning cleaning of the gantry mill to the support ring positioning table and partition plate positioning table, and assembled in the casing
Support ring；
By the upper and lower casing and the upper and lower support ring by its respective split carry out it is levelling after, in the upper and lower machine
In shell partition plate positioning table installation partition plate, it is intraperitoneal between two partition plates, by the upper and lower support ring respectively with it is described
After upper and lower casing compresses, and finish-milling is carried out to the split of the upper and lower casing.
6. the abdominal cavity processing method of horizonally split formula centrifugal compressor casing according to claim 5, it is characterised in that institute
Upper and lower casing is stated by beating surface centering, it is levelling by split, beat tabular value≤0.04mm.
7. the abdominal cavity processing method of horizonally split formula centrifugal compressor casing according to claim 4, it is characterised in that right
Partition plate positioning table in the casing, which carries out smart thorax processing, to be included：
The lower casing is subjected to plane centering；
The upper casing is assembled on the lower casing, its step includes：
Positioning pin is inserted on the upper casing, and second of line is carried out to the position of positioning pin on the upper and lower casing,
Positioning pin is inserted into it by second line after making the upper and lower casing mould assembling, and in the fully-inserted institute of the positioning pin
After stating in casing, just allow to carry out right boring to the casing；
Right boring endoporus and groove at support end seal area on the housing, and right boring pressure testing face and chamfering；
On the basis of machined endoporus, table centering, and lower casing described in right boring are beaten by the centering plane of the lower casing
Bearing block makes the bearing block that conjunction plane, seam allowance and endoporus are required up to size conjunction plane, seam allowance and endoporus；
Threaded hole is processed on the circumference of the upper and lower casing, by the support end bearing area end face of the lower casing
Oil return hole is worked into desired size requirement；
After the positioning plane at lower casing both ends described in finish-milling, the thread mill drilling in the positioning plane；
After lower casing air outlet Flange Plane described in finish-milling and seam allowance, joint hole, ream flat seat are processed；
Behind the support end end face of upper and lower casing described in boring and milling and seam allowance, threaded hole and chamfering are processed on circumference；
Dismantle the upper casing；
Carry out beating table centering in the bearings at both ends seal area and split of the lower casing, franchise is less than 0.02mm.
8. the abdominal cavity processing method of horizonally split formula centrifugal compressor casing according to claim 7, it is characterised in that institute
Stating the step of lower casing carries out centering includes：The lower casing by its split, support end bearing seal area and centering plane into
Row centering, assembles the support end bearing gland of the lower casing, and carrying out centering in the split flange side of the lower casing puts down
Face, each portion in the support end bearing area of the lower casing carry out right boring endoporus, after the endoporus is reached estimated size, tear open
Unload support end bearing gland.
9. the abdominal cavity processing method of horizonally split formula centrifugal compressor casing according to claim 1, it is characterised in that logical
Crossing the support ring positioning table and partition plate positioning table support ring and the installation steps of partition plate are installed in the casing includes：By institute
The upper and lower entrance that partition plate is fixed on the casing by the partition plate positioning table is stated, can be with the upper and lower casing processing
The pin hole and threaded hole that the support ring is mutually fixed, after the support ring is put into the support ring positioning table, fixed pin is beaten
Enter in pin hole, and ensure to fasten, after be screwed into screw, and examine whether screw has withstood fixing pin, and firmly, the dead spiral shell of blunderbuss
Nail.
10. the abdominal cavity processing method of horizonally split formula centrifugal compressor casing according to claim 1, it is characterised in that
Finish-milling processing is carried out to the support ring in the casing and partition plate, its step includes：
The upper casing is subjected to centering by its horizontal flange, and by the lower casing using inlet and outlet flange as basal plane, its
In, the upper and lower casing presses endoporus center centering permission≤0.02mm；
The seam allowance on end face and thrust end inner face in the support end seal area of upper and lower casing described in finish-milling, makes it up to expection
Size requirement；
The abdominal cavity of upper and lower casing described in finish-milling and support ring endoporus.
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| CN108971540A (en) * | 2018-08-20 | 2018-12-11 | 沈阳透平机械股份有限公司 | The processing method of cutter and the special stator blade mounting hole nest of central casing |
| CN110026741A (en) * | 2019-04-25 | 2019-07-19 | 沈阳透平机械股份有限公司 | A kind of rough machining method of centrifugal compressor casing |
| CN110102970A (en) * | 2019-04-25 | 2019-08-09 | 沈阳透平机械股份有限公司 | A kind of processing method of centrifugal compressor partition |
| CN111112963A (en) * | 2020-03-05 | 2020-05-08 | 招商局邮轮制造有限公司 | Machining method for self-elevating multifunctional service platform floating type gear box |
| CN114233689A (en) * | 2021-12-20 | 2022-03-25 | 沈阳透平机械股份有限公司 | Alignment method for horizontally split large-scale compressor shell and partition plate |
| CN114799755A (en) * | 2022-04-29 | 2022-07-29 | 沈阳透平机械股份有限公司 | Boring machine processing horizontal subdivision compressor shell abdominal cavity positioning method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108971540A (en) * | 2018-08-20 | 2018-12-11 | 沈阳透平机械股份有限公司 | The processing method of cutter and the special stator blade mounting hole nest of central casing |
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| CN110102970A (en) * | 2019-04-25 | 2019-08-09 | 沈阳透平机械股份有限公司 | A kind of processing method of centrifugal compressor partition |
| CN110102970B (en) * | 2019-04-25 | 2020-12-29 | 沈阳透平机械股份有限公司 | Method for processing centrifugal compressor partition plate |
| CN110026741B (en) * | 2019-04-25 | 2021-06-22 | 沈阳透平机械股份有限公司 | Rough machining method for centrifugal compressor shell |
| CN111112963A (en) * | 2020-03-05 | 2020-05-08 | 招商局邮轮制造有限公司 | Machining method for self-elevating multifunctional service platform floating type gear box |
| CN111112963B (en) * | 2020-03-05 | 2021-12-24 | 招商局邮轮制造有限公司 | Machining method for self-elevating multifunctional service platform floating type gear box |
| CN114233689A (en) * | 2021-12-20 | 2022-03-25 | 沈阳透平机械股份有限公司 | Alignment method for horizontally split large-scale compressor shell and partition plate |
| CN114799755A (en) * | 2022-04-29 | 2022-07-29 | 沈阳透平机械股份有限公司 | Boring machine processing horizontal subdivision compressor shell abdominal cavity positioning method |
| CN114799755B (en) * | 2022-04-29 | 2023-08-04 | 沈阳透平机械股份有限公司 | Method for machining abdominal cavity of horizontal split compressor shell by boring machine |
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