CN109909691A - Bearing device inner wall overlaying manufacture of casing - Google Patents
Bearing device inner wall overlaying manufacture of casing Download PDFInfo
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- CN109909691A CN109909691A CN201910272381.1A CN201910272381A CN109909691A CN 109909691 A CN109909691 A CN 109909691A CN 201910272381 A CN201910272381 A CN 201910272381A CN 109909691 A CN109909691 A CN 109909691A
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- circumferential weld
- bearing device
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- groove
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Abstract
Bearing device inner wall overlaying manufacture of casing, it is related to bearing device shell manufacturing technology field.The present invention is to solve the problems, such as that existing bearing device inner wall overlaying shell production efficiency is low, manufacture difficulty is big, manufacturing quality is poor.Manufacturing method includes blanking；Shell molding；Circumferential weld retaining wall on slope；Built-up welding；Process the outer groove of circumferential weld；It examines.The present invention is manufactured for bearing device inner wall overlaying shell.
Description
Technical field
The present invention relates to bearing device shell manufacturing technology fields, and in particular to bearing device inner wall overlaying shell manufacturer
Method.
Background technique
For a long time, the shell structure application of petrochemical industry container inner wall built-up welding is universal.End socket, cylinder, pyramidal shell are often used
Steel plate manufacture, due to always after the end socket of forming, cylinder, cone inside surfacing stainless steel or nickel-base material, Vehicle Processing again
Circumferential weld groove, often there is overlay cladding built-up welding transition, inner walls substrate and overlay cladding cannot be distinguished, base material thickness skiving is big,
It is unable to satisfy the design requirement etc. that overlay cladding is lower than overlay cladding maximum spacing apart from substrate groove minimum spacing and substrate surface
Problem is shown in Fig. 1 and Fig. 2.And nearby substrate surface is discontinuous for circumferential weld, sees Fig. 3.Lead to the bearing devices such as pressure vessel manufacture enterprise
Industry inner wall overlaying housing design and manufacturing process technology are single, outmoded, backward, production efficiency is low, poor product quality.
Summary of the invention
Existing bearing device inner wall overlaying shell production efficiency is low, manufacture difficulty is big, manufacturing quality in order to solve by the present invention
Poor problem, and then propose bearing device inner wall overlaying manufacture of casing.
The technical solution adopted by the present invention to solve the above technical problem is:
Bearing device inner wall overlaying manufacture of casing includes the following steps:
Step 1: blanking: first reviewing steel plate, review it is qualified after carry out oxygen-acetylene cutting, in steel plate week when blanking
While staying machining allowance；
Step 2: the steel plate after gas cutting shell molding: is processed into bearing device shell；
Step 3: circumferential weld retaining wall on slope: four center lines and the circumferential weld groove position line are drawn first, ring is then carried out on lathe
Retaining wall on slope is stitched, circumferential weld internal groove and the outer groove of circumferential weld are processed；
Step 4: built-up welding: on the basis of circumferential weld internal groove, built-up welding welding is carried out to bearing device shell, overlay cladding includes
Bottom transition zone and top layer anti-corrosion layer carry out non-destructive testing after the completion of welding；
Step 5: examining: the bearing device shell after processing tested, and enters subsequent processing after qualified and carries out group
Dress.
The beneficial effects of the present invention over the prior art is:
1, pass through invention bearing device inner wall overlaying manufacture of casing, optimization and improvement bearing device inner wall overlaying shell
Manufacturing method improves bearing device design and fabrication technology level, production efficiency, product quality, economic benefit；
2, single, the outmoded status of previous bearing device inner wall overlaying manufacture of casing optimized, innovated, adjusted
Manufacturing process has invented and has fully considered that inner wall overlaying becomes the welding of the morpheme sizes such as shell length, height, diameter, ovality
The influence of shape changes the outmoded backward way of previous inner wall overlaying shell elder generation built-up welding post-processing circumferential weld groove and transition, innovation
First processing shell circumferential weld groove built-up welding inner wall or first roughing shell circumferential weld groove built-up welding and finishing circumferential weld again again is invented
The advanced manufacturing technology of groove；
3, present invention efficiently solves previous bearing device inner wall overlaying housing design structure, manufacturing method are single, old
It is old, production efficiency is low, ropy problem.By technological innovation, make the side of designing and manufacturing of bearing device inner wall overlaying shell
Method, product quality, production efficiency, economic benefit are obviously optimized and are improved, and processing quality is stablized, and product processing efficiency improves
40%.
Detailed description of the invention
Fig. 1 is the schematic diagram of existing bearing device inner wall overlaying shell circumferential weld retaining wall on slope situation；
Fig. 2 is the existing another machining status schematic diagram of bearing device inner wall overlaying shell circumferential weld groove；
Fig. 3 is existing bearing device inner wall overlaying shell circumferential weld substrate surface situation schematic diagram；
Fig. 4 is the integrally-built main view of the present invention；
Fig. 5 is the right view of Fig. 4；
Fig. 6 is certain petrochemical industry container inner wall built-up welding cone schematic diagram in first embodiment；
Fig. 7 is certain petrochemical industry container inner wall built-up welding cone groove inner wall substrate machining sketch chart in first embodiment；
Fig. 8 is certain petrochemical industry container inner wall built-up welding cone circumferential weld groove manufacturing method schematic diagram in first embodiment.
Specific embodiment
Specific embodiment 1: illustrate present embodiment in conjunction with Fig. 1 to Fig. 8, bearing device inner wall described in present embodiment
Built-up welding manufacture of casing includes the following steps:
Step 1: blanking: first reviewing steel plate, review it is qualified after carry out oxygen-acetylene cutting, in steel plate week when blanking
While staying machining allowance L1；
Step 2: the steel plate after gas cutting shell molding: is processed into bearing device shell 1；
Step 3: circumferential weld retaining wall on slope: four center lines and the circumferential weld groove position line are drawn first, ring is then carried out on lathe
Retaining wall on slope is stitched, circumferential weld internal groove 4 and the outer groove 3 of circumferential weld are processed；
Step 4: built-up welding: on the basis of circumferential weld internal groove 4, built-up welding welding is carried out to bearing device shell 1, overlay cladding 2 wraps
Bottom transition zone and top layer anti-corrosion layer are included, is carried out non-destructive testing after the completion of welding；
Step 5: examining: the bearing device shell 1 after processing tested, and enters subsequent processing after qualified and carries out group
Dress.
In present embodiment step 2 shell forming process, when processing end socket, processed by hot-forming；Process cylinder
When body, by roll-forming, longitudinal seam welding processing is then carried out；When processing cone, then it is vertical to carry out splicing for compression moulding first
Seam welding processing.
Specific embodiment 2: illustrating present embodiment in conjunction with Fig. 4 to Fig. 5, carried out in step 3 described in present embodiment
When circumferential weld retaining wall on slope, it can be processed in circumferential weld groove according to the material of shell, wall thickness, outer dimension and ovality actual conditions
Surface angled transition 5, circumferential weld groove inner surface angled transition 5 carry out after processing circumferential weld internal groove 4, the circumferential weld slope after processing
Wall thickness at mouth inner surface angled transition 5 will meet the minimal design wall thickness requirement of bearing device shell 1.In present embodiment not
Disclosed technical characteristic is same as the specific embodiment one.
Be designed in this way is to mitigate or reduce Shaped shell ring as far as possible under the premise of meeting and designing minimum wall thickness (MINI W.) requirement
Stitch groove at and heap postwelding ovality.
Specific embodiment 3: illustrating that present embodiment, step 3 described in present embodiment process ring in conjunction with Fig. 4 to Fig. 5
Before stitching outer groove 3, the outer retaining wall on slope surplus 6 of processing circumferential weld is also needed, step 4 heap postwelding is completed, according to product drawing to ring
It stitches outer retaining wall on slope surplus 6 to be processed, processing finishing is carried out to circumferential weld internal groove 4.Undocumented technology in present embodiment
Feature is identical with embodiment two.
The influence to shell machining dimension precision, the outer groove of circumferential weld are shunk in welding caused by being designed in this way to eliminate built-up welding
The size of machining allowance 6 is wanted by hull shape, material, diameter and wall thickness size, overlay cladding thickness, specific design and technology
The factors such as ask to influence.
Specific embodiment 4: illustrate present embodiment in conjunction with Fig. 4 to Fig. 5, the heap in step 4 described in present embodiment
Layer 2 is stainless steel or nickel-base material.The technical features not disclosed in this embodiment and specific embodiment one, two or three-phase
Together.
Specific embodiment 5: illustrate present embodiment in conjunction with Fig. 4 to Fig. 5, the heap in step 4 described in present embodiment
Layer 2 with a thickness of 3~6mm.The technical features not disclosed in this embodiment are identical as specific embodiment four.
Specific embodiment 6: illustrate present embodiment in conjunction with Fig. 4 to Fig. 5, the bottom in step 4 described in present embodiment
The length of layer transition zone is greater than the length of top layer anti-corrosion layer.The technical features not disclosed in this embodiment and specific embodiment party
Formula five is identical.It is designed in this way in order to which overlay cladding welds at subsequent circumferential weld.
Specific embodiment 7: illustrating present embodiment, built-up welding in step 4 described in present embodiment in conjunction with Fig. 4 to Fig. 5
Layer the distance between 2 and 4 edge of circumferential weld internal groove D is more than or equal to 10mm.The technical features not disclosed in this embodiment and tool
Body embodiment one, two, three, five or six are identical.
Specific embodiment 8: illustrating present embodiment, table in circumferential weld groove described in present embodiment in conjunction with Fig. 4 to Fig. 5
The gradient of face angled transition 5 is less than or equal to 1:3.The technical features not disclosed in this embodiment and specific embodiment two-phase
Together.
First embodiment
Certain petrochemical industry container inner wall built-up welding cone is shown in that Fig. 4,2000/ φ 800 of specification φ, wall thickness 60mm, height L are
1080mm, that built-up welding 316L stainless steel 6mm, overlay cladding apart from circumferential weld internal groove Edge Distance D are more than or equal to 6mm, substrate surface is low
It is less than or equal to 2mm in overlay cladding.
Quasi- point of three pieces of compacting splicings of cone, technical process: steel plate reviews → 1/3 oxygen-acetylene cutting, both ends circumferential weld groove
Stay machine add surplus L1 be 30mm → punching press → first time intermediate heat-treatment → essence school → scribing line, dig longitudinal joint groove → splicing longitudinal joint at
Cone → second of intermediate heat-treatment → non-destructive testing → draw the built-up welding position line and built-up welding → non-destructive testing → draw four center lines and
The circumferential weld groove position line → Vehicle Processing both ends circumferential weld groove → to be assembled.
Since when ovality is larger after cone welding and built-up welding transition, processing circumferential weld groove inner surface, local substrate cuts
Thin serious, substrate surface lower than overlay cladding H is 5mm, substrate and overlay cladding boundary are unclear, and processing and manufacturing quality school is poor, sees Fig. 5.
According to the bearing device inner wall overlaying shell structure and manufacturing method of invention, is corrected before inner wall overlaying and process ring
Seam groove, overlay cladding are amplified to D more than or equal to 10mm apart from circumferential weld internal groove Edge Distance.
Cone technical process: steel plate reviews → 1/3 oxygen-acetylene cutting, and both ends circumferential weld groove stays machine that surplus L1 is added to be 30mm
→ punching press → first time intermediate heat-treatment → essence school → scribing line, plane longitudinal joint groove → splicing longitudinal joint are at cone → correction → second
Intermediate heat-treatment → non-destructive testing → draw four center lines and the circumferential weld groove position line → Vehicle Processing both ends circumferential weld groove (it is contemplated that
Built-up welding is appropriate to amplify length and diameter processing dimension according to calculating and empirical data to shell dimension effect of contraction) → draw built-up welding
The position line and built-up welding → non-destructive testing → to be assembled.
Due to after cone welding through before overcorrect ovality is smaller and built-up welding by processing circumferential weld groove and inner surface, heap
(following transition zone welds a segment length, than surface layer above or anticorrosion layer in order to subsequent built-up welding to postwelding overlay cladding distinct more
Layer welding), substrate surface it is continuous, processing and manufacturing quality, production efficiency, economic benefit are improved significantly, and see Fig. 6.
Claims (8)
1. bearing device inner wall overlaying manufacture of casing, it is characterised in that: described method includes following steps:
Step 1: blanking: first reviewing steel plate, review it is qualified after carry out oxygen-acetylene cutting, when blanking, is stayed on steel plate periphery
Machining allowance (L1)；
Step 2: the steel plate after gas cutting shell molding: is processed into bearing device shell (1)；
Step 3: circumferential weld retaining wall on slope: drawing four center lines and the circumferential weld groove position line first, and circumferential weld slope is then carried out on lathe
Circumferential weld internal groove (4) and the outer groove (3) of circumferential weld are processed in mouth processing；
Step 4: on the basis of circumferential weld internal groove (4), built-up welding welding, overlay cladding (2) built-up welding: are carried out to bearing device shell (1)
Including bottom transition zone and top layer anti-corrosion layer, carried out non-destructive testing after the completion of welding；
Step 5: examining: the bearing device shell (1) after processing tested, and enters subsequent processing after qualified and is assembled.
2. bearing device inner wall overlaying manufacture of casing according to claim 1, it is characterised in that: in the step 3 into
When row circumferential weld retaining wall on slope, circumferential weld groove can be processed according to the material of shell, wall thickness, outer dimension and ovality actual conditions
Inner surface angled transition (5), circumferential weld groove inner surface angled transition (5) carries out after processing circumferential weld internal groove (4), after processing
Circumferential weld groove inner surface angled transition (5) at wall thickness to meet bearing device shell (1) minimal design wall thickness requirement.
3. bearing device inner wall overlaying manufacture of casing according to claim 2, it is characterised in that: the step 3 processing
Before the outer groove (3) of circumferential weld, the outer retaining wall on slope surplus (6) of processing circumferential weld is also needed, step 4 heap postwelding is completed, according to product figure
Paper processes retaining wall on slope surplus (6) outside circumferential weld, carries out processing finishing to circumferential weld internal groove (4).
4. according to claim 1, the 2 or 3 bearing device inner wall overlaying manufacture of casing, it is characterised in that: the step
Overlay cladding (2) in four is stainless steel or nickel-base material.
5. bearing device inner wall overlaying manufacture of casing according to claim 4, it is characterised in that: in the step 4
Overlay cladding (2) with a thickness of 3~6mm.
6. bearing device inner wall overlaying manufacture of casing according to claim 5, it is characterised in that: in the step 4
The length of bottom transition zone is greater than the length of top layer anti-corrosion layer.
7. according to claim 1, the bearing device inner wall overlaying manufacture of casing of 2,3,5 or 6, it is characterised in that: described
The distance between overlay cladding (2) and circumferential weld internal groove (4) edge (D) are more than or equal to 10mm in step 4.
8. bearing device inner wall overlaying manufacture of casing according to claim 2, it is characterised in that: in the circumferential weld groove
The gradient of surface angled transition (5) is less than or equal to 1:3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910272381.1A CN109909691A (en) | 2019-04-04 | 2019-04-04 | Bearing device inner wall overlaying manufacture of casing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910272381.1A CN109909691A (en) | 2019-04-04 | 2019-04-04 | Bearing device inner wall overlaying manufacture of casing |
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| CN109909691A true CN109909691A (en) | 2019-06-21 |
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| CN201910272381.1A Pending CN109909691A (en) | 2019-04-04 | 2019-04-04 | Bearing device inner wall overlaying manufacture of casing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953772A (en) * | 2021-11-13 | 2022-01-21 | 中国航发沈阳黎明航空发动机有限责任公司 | Machining method for casting special-shaped mounting edge of cone ring block |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837501A (en) * | 2010-05-20 | 2010-09-22 | 哈尔滨汽轮机厂有限责任公司 | Surfacing method of 12-percent Cr steel high and middle pressure rotor journal of ultra supercritical steam turbine |
| CN104625585A (en) * | 2013-11-12 | 2015-05-20 | 青岛旭升封头有限公司 | Urea synthesis tower lower end socket processing technology |
| CN106695068A (en) * | 2015-08-21 | 2017-05-24 | 关磊 | Anticorrosion surfacing method for inner wall of steel pipe welding seam |
-
2019
- 2019-04-04 CN CN201910272381.1A patent/CN109909691A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837501A (en) * | 2010-05-20 | 2010-09-22 | 哈尔滨汽轮机厂有限责任公司 | Surfacing method of 12-percent Cr steel high and middle pressure rotor journal of ultra supercritical steam turbine |
| CN104625585A (en) * | 2013-11-12 | 2015-05-20 | 青岛旭升封头有限公司 | Urea synthesis tower lower end socket processing technology |
| CN106695068A (en) * | 2015-08-21 | 2017-05-24 | 关磊 | Anticorrosion surfacing method for inner wall of steel pipe welding seam |
Non-Patent Citations (1)
| Title |
|---|
| 天津大学等院校合编: "《化工机器及设备的制造工艺与安装修理 修订版》", 31 August 1961, 中国工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953772A (en) * | 2021-11-13 | 2022-01-21 | 中国航发沈阳黎明航空发动机有限责任公司 | Machining method for casting special-shaped mounting edge of cone ring block |
| CN113953772B (en) * | 2021-11-13 | 2024-01-19 | 中国航发沈阳黎明航空发动机有限责任公司 | Machining method for special-shaped mounting edge of cast cone ring block |
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Application publication date: 20190621 |
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