CN202062194U - Pressing seal head for boiler and pressure container - Google Patents
Pressing seal head for boiler and pressure container Download PDFInfo
- Publication number
- CN202062194U CN202062194U CN 201120065618 CN201120065618U CN202062194U CN 202062194 U CN202062194 U CN 202062194U CN 201120065618 CN201120065618 CN 201120065618 CN 201120065618 U CN201120065618 U CN 201120065618U CN 202062194 U CN202062194 U CN 202062194U
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- China
- Prior art keywords
- boiler
- steel plate
- seal head
- end socket
- plate blank
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- Expired - Fee Related
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Abstract
The utility model relates to a pressing seal head for a boiler and a pressure container. Beside seal heads with large diameters and thin walls are formed in a spinning way, other spherical or ellipsoidal seal heads of traditional boiler and pressure container products are generally formed from steel plate blanks in a hot pressing way by directly using a pressing mould, every kind of seal head with known diameter and thickness specifications requires a corresponding punch and ring-pull mould; when the known diameters are same, but the known thicknesses are different, the required ring-pull moulds are also different; and even if the thicknesses differ for several millimeters, different ring-pull moulds are also needed to be manufactured. The pressing seal head for the boiler and the pressure container comprises a seal head steel plate blank (1), wherein an annular local thickened welding layer (2) is overlaid on the surface of a straight side position of the seal head steel plate blank. The pressing seal head is used for manufacturing a single product or small-scale products for boiler and pressure container manufacturing enterprises.
Description
Technical field:
Utility model belongs to boiler and pressure vessel is made the field; Be specifically related to a kind of boiler and pressure vessel compacting end socket of being used for.
Background technology:
Boiler and pressure vessel product sphere or ellipsoidal head were except that the large diameter thin wall end socket adopted rotary press modelling in the past, generally all be directly hot-forming by compacting tool set with the steel plate blank, the end socket of each nominal diameter and thickness specification all needs corresponding drift and draw ring mould; Identical and the thickness of nominal diameter not simultaneously, the draw ring mould that needs is also different; Often thickness differs several millimeters, also must make different draw ring moulds.Cause boiler and pressure vessel manufacturers end socket draw ring mould is too much, die cost is high, have a strong impact on economic benefit.
Summary of the invention:
The purpose of utility model provides a kind of boiler and pressure vessel compacting end socket and manufacture method, reaches the purpose that manufacturing process is further optimized, improved existing draw ring mould utilization rate, reduces the draw ring number of molds, reduces production costs, shortens the production cycle, increases economic efficiency.
Above-mentioned purpose realizes by following technical scheme:
The compacting end socket of boiler and pressure vessel, its composition comprises: end socket steel plate blank, the surface overlaying annular partial thickening weld layer of the straight flange position of described end socket steel plate blank.
The compacting end socket of described boiler and pressure vessel, described end socket steel plate blank are dome head steel plate blank or ellipsoidal head steel plate blank.
Beneficial effect:
1. the utility model has reduced in the past in the boiler and pressure vessel product compacting end socket manufacturing process effectively, adopts dependence and the restriction of the molded and unitary system fabrication technique corresponding mould one by one of steel plate blank direct heat to mould.
The utility model carries out the special fabrication processes that annular built-up welding thickens at steel plate blank marginal surface, under the prerequisite that guarantees end socket compression moulding size and quality, size accommodation increases, can improve the existing draw ring mould utilization rate of boiler and pressure vessel manufacturers effectively, reduce number of molds, reduce die manufacturing cost, shorten the production cycle, increase economic efficiency.
The utility model technology novelty, practicality, advanced person, reliable are specially adapted to boiler and pressure vessel manufacturers and make the often end socket under the situation of change within the specific limits of the product end socket of all size separate unit boiler end, small lot, finished size.
The utility model is by the built-up welding of different-thickness, and the adaptedness of size obviously increases, and can effectively improve the existing mold utilization rate, reduces number of molds, shortens the production cycle, reduce production costs, increases economic efficiency.Technology novelty, practicality, advanced person, reliable.
The utility model is saved the manufacturing cost of draw ring mould, has improved the economic benefit of manufacturing enterprise.
Description of drawings:
Accompanying drawing 1 is the structural representation of this product.
Accompanying drawing 2 is vertical views of the end socket steel plate blank after the built-up welding in the accompanying drawing 1.
Accompanying drawing 3 is cutaway views of the end socket steel plate blank after the built-up welding in the accompanying drawing 1.
Accompanying drawing 4 is that the A of accompanying drawing 3 is to partial enlarged drawing.
Accompanying drawing 5 is structural representations of the dome head of this product.
Accompanying drawing 6 is structural representations of the ellipsoidal head of this product.
The specific embodiment:
Embodiment 1:
The compacting end socket of a kind of boiler and pressure vessel, its composition comprises: end socket steel plate blank 1, the surface overlaying annular partial thickening weld layer 2 of the straight flange position of described end socket steel plate blank.
Embodiment 2:
The compacting end socket of embodiment 1 described boiler and pressure vessel, described end socket steel plate blank can be a dome head steel plate blank 3, or ellipsoidal head steel plate blank 4.
The manufacture method of a kind of boiler and pressure vessel compacting end socket, before the end socket compacting at the surface overlaying annular partial thickening weld layer of the straight flange position of steel plate blank; Utilize the draw ring mould to carry out in the end socket pressing process, overlay cladding appeared at end socket end outer surface straight section and thickens the position when levelling technology made compression moulding.
The manufacture method of described boiler and pressure vessel compacting end socket, described built-up welding comprises filament Lincoln weld or band utmost point Lincoln weld or stick electrode weldering, welding method can be different types of combination, to form the overlay cladding that certain width and thickness meet technological requirement, suitably evenly increase steel plate blank edge thickness, be convenient to utilize existing compacting tool set to carry out the end socket compacting.
Overlay cladding is processed removal after end socket compression moulding, or as girth joint transition processing and utilization.
The method of manufacturing technology of described boiler and pressure vessel compacting end socket, utilize the technological process of existing Dn700 * 60 oval drifts and draw ring mould compacting Dn700 * 54 ellipse heads 4: 1) steel plate blank oxygen-acetylene cutting, determine overlay cladding thickness and width according to existing mold and ellipse head data, carry out built-up welding and process the finishing overlay cladding meeting pressing requirements by welding procedure specification (WPS); 2) overlay cladding is directed downwards placement before the compacting, and end socket is hot-forming; 3) remove overlay cladding during Vehicle Processing seal head girth groove; 4) end socket shape and physical dimension and defect detecting test are qualified.
The method of manufacturing technology of described boiler and pressure vessel compacting end socket, utilize the technological process of existing SR350 * 60 spherical drifts and draw ring mould compacting SR350 * 54 dome heads 3: 1) steel plate blank oxygen-acetylene cutting, determine overlay cladding thickness and width according to existing mold and dome head data, carry out built-up welding and process the finishing overlay cladding meeting pressing requirements by welding procedure specification (WPS); 2) overlay cladding is directed downwards placement before the compacting, and end socket is hot-forming; 3) remove overlay cladding during Vehicle Processing seal head girth groove; 4) end socket shape and physical dimension and defect detecting test are qualified.
Claims (2)
1. the compacting end socket of boiler and pressure vessel, its composition comprises: end socket steel plate blank is characterized in that: the surface overlaying annular partial thickening weld layer of the straight flange position of described end socket steel plate blank.
2. the compacting end socket of boiler according to claim 1 and pressure vessel is characterized in that: described end socket steel plate blank is dome head steel plate blank or ellipsoidal head steel plate blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120065618 CN202062194U (en) | 2011-03-14 | 2011-03-14 | Pressing seal head for boiler and pressure container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120065618 CN202062194U (en) | 2011-03-14 | 2011-03-14 | Pressing seal head for boiler and pressure container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202062194U true CN202062194U (en) | 2011-12-07 |
Family
ID=45056072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120065618 Expired - Fee Related CN202062194U (en) | 2011-03-14 | 2011-03-14 | Pressing seal head for boiler and pressure container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202062194U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179668A (en) * | 2011-03-14 | 2011-09-14 | 哈尔滨锅炉厂有限责任公司 | Pressing sealing head of boiler and pressure container and manufacturing method |
| CN102756242A (en) * | 2012-06-26 | 2012-10-31 | 江苏天成封头有限公司 | Method for welding carbon steel heads |
-
2011
- 2011-03-14 CN CN 201120065618 patent/CN202062194U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179668A (en) * | 2011-03-14 | 2011-09-14 | 哈尔滨锅炉厂有限责任公司 | Pressing sealing head of boiler and pressure container and manufacturing method |
| CN102179668B (en) * | 2011-03-14 | 2016-08-24 | 哈尔滨锅炉厂有限责任公司 | Boiler and pressure vessel pressing seal head and manufacture method |
| CN102756242A (en) * | 2012-06-26 | 2012-10-31 | 江苏天成封头有限公司 | Method for welding carbon steel heads |
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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: 20111207 Termination date: 20160314 |