CN108580830A - A kind of method of processing flange - Google Patents
A kind of method of processing flange Download PDFInfo
- Publication number
- CN108580830A CN108580830A CN201810440322.6A CN201810440322A CN108580830A CN 108580830 A CN108580830 A CN 108580830A CN 201810440322 A CN201810440322 A CN 201810440322A CN 108580830 A CN108580830 A CN 108580830A
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- China
- Prior art keywords
- flange
- casting
- steel
- centrifuge
- metal die
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/04—Centrifugal casting; Casting by using centrifugal force of shallow solid or hollow bodies, e.g. wheels or rings, in moulds rotating around their axis of symmetry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses a kind of method of processing flange, include the following steps：(1) selected raw material steel are put into electrosmelting of intermediate frequency, liquid steel temperature is made to reach 1,600 1700 DEG C；(2) metal die is pre-heated to 800 900 DEG C, and keeps constant temperature；(3) centrifuge is started, it will be in the metal die after preheating in the molten steel injection step (2) in step (1)；(4) casting naturally cools to 800 900 DEG C, is kept for 1 10 minutes；(5) casting is water-cooled to close to room temperature, demoulding takes out casting, obtains finished product flange.The present invention produces flange using casting method, it is carefully many compared with ordinary sand casting tissue, Quality advance is many, the problems such as being less prone to tissue looseness, stomata, trachoma, and casts out the flange come, blank shape size is accurate, processing capacity is small, at low cost, solves existing flange and is produced or used forging using lathe, production technology is complicated, low production efficiency and the high problem of production cost.
Description
Technical field
The present invention relates to flange processing technique field, specially a kind of method of processing flange.
Background technology
Ring flange is a kind of discoid part, and also call is blue, is used in pairs.Ring flange is connected to the important company of pipeline construction
Mode is connect, the pipeline connection being widely used in industrial pipeline engineering.Ring flange connection is a kind of releasable connection, it is managed two
Road, pipe fitting or equipment link together, easy to use, can bear larger pressure.The main function of flange is connecting line
And the sealing performance of pipeline is kept, convenient for the replacement of certain section of pipeline and overhaul pipeline situation etc..
Flange is called flange flange disk or flange.Flange is the part being connected with each other between axis and axis, between pipe end
Connection；Also have with the flange imported and exported in equipment, the connection being used between two equipment, such as speed reducer flange.Flange connects
It connects or bump joint, refers to the releasable connection being connected with each other by flange, gasket and bolt three as one group of combined sealing structure.
Pipe flange, which is meant, matches effective flange in plumbing installation, with the inlet and outlet flange for meaning equipment in equipment.There is hole on flange
Eye, bolt make two flanges be close to.With liner sealing between flange.Flange point be threadedly coupled (screwed connection) flange, welded flange and
Clip flange.Flange all uses in pairs, and low pressure pipeline can use silk acting flange, the use welding of four kilograms of pressure above
Flange.Gasket is added between two panels ring flange, is then fastened with bolt.The flange thickness of different pressures is different, they are used
Bolt it is also different.Water pump and valve, when being connected with pipeline, corresponding flange is also made in the part of these equipment facilities
Shape, also referred to as flanged joint.It is every to be bolted while closed union piece in two planar perimeter uses, generally all claim
For " flange ", such as the connection of ventilation shaft, this kind of part is properly termed as " flange type part ".But this connection only one
The part of equipment, such as the connection of flange and water pump, just it is bad water pump " flange type part ".More small-sized such as valve,
It can cry " flange type part ".Existing flange is produced or is used forging using lathe, and production technology is complicated, production efficiency
Low, production cost is high, for this purpose, it is proposed that a kind of method of processing flange.
Invention content
The purpose of the present invention is to provide a kind of method of processing flange, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of method of processing flange, includes the following steps：
(1) selected raw material steel are put into electrosmelting of intermediate frequency, liquid steel temperature is made to reach 1600-1700 DEG C；
(2) metal die is pre-heated to 800-900 DEG C, and keeps constant temperature；
(3) centrifuge is started, it will be in the metal die after preheating in the molten steel injection step (2) in step (1)；
(4) casting naturally cools to 800-900 DEG C, is kept for 1-10 minutes；
(5) casting is water-cooled to close to room temperature, demoulding takes out casting, obtains finished product flange.
Preferably, the middle frequency furnace in the step (1) is using one kind in SKX-8-16TP and SX2-4-17TP.
Preferably, the raw material in the step (1) using WCB carbon steels, stainless steel, 316L, 316,304L, 304,321,
One kind in chrome-molybdenum steel, steel alloy and Chrominm-molybdenum-vanadium steel.
Preferably, the centrifuge in the step (3) using link-suspended basket centrifuge, flat centrifuge, horizontal centrifuge,
One kind in disk centrifuge and tubular type high speed separator.
Compared with prior art, the beneficial effects of the invention are as follows：Present invention melting raw material, while preheated mold first,
Then by after melting molten steel be added mold, finally by pass through natural cooling and water cooling, obtain finished product flange, by using from
Heart method casting centrifugation flange, belongs to casting method production flange, carefully many compared with ordinary sand casting tissue, Quality advance
Much, the problems such as being less prone to tissue looseness, stomata, trachoma, and the flange come is cast out, blank shape size is accurate, processing
Measure it is small, it is at low cost, solve existing flange and produced using lathe or use forging, production technology complicated, production efficiency
The low and high problem of production cost.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution：A kind of method of processing flange, includes the following steps：
(1) selected raw material steel are put into electrosmelting of intermediate frequency, liquid steel temperature is made to reach 1600-1700 DEG C；
(2) metal die is pre-heated to 800-900 DEG C, and keeps constant temperature；
(3) centrifuge is started, it will be in the metal die after preheating in the molten steel injection step (2) in step (1)；
(4) casting naturally cools to 800-900 DEG C, is kept for 1-10 minutes；
(5) casting is water-cooled to close to room temperature, demoulding takes out casting, obtains finished product flange.
Embodiment one：
Selected raw material steel are put into electrosmelting of intermediate frequency first, liquid steel temperature is made to reach 1600-1700 DEG C；Then will
Metal die is pre-heated to 800-900 DEG C, and keeps constant temperature；Then centrifuge is started, the molten steel injection of melting in advance is shifted to an earlier date
In metal die after preheating；Then it waits for that casting naturally cools to 800-900 DEG C, is kept for 1-10 minutes；Finally by casting water
It is cooled to close to room temperature, demoulding takes out casting, obtains finished product flange.
Embodiment two：
In embodiment one, following processes are added：
Middle frequency furnace in step (1) is using one kind in SKX-8-16TP and SX2-4-17TP.
Selected raw material steel are put into electrosmelting of intermediate frequency first, so that liquid steel temperature is reached 1600-1700 DEG C, intermediate frequency
Electric furnace uses one kind in SKX-8-16TP and SX2-4-17TP；Then metal die is pre-heated to 800-900 DEG C, and kept
Constant temperature；Then centrifuge is started, in the metal die after the molten steel injection of melting in advance is preheated in advance；Then casting nature is waited for
It is cooled to 800-900 DEG C, is kept for 1-10 minutes；Finally casting is water-cooled to close to room temperature, demoulding is taken out casting, obtained into
Product flange.
Embodiment three：
In embodiment two, following processes are added：
Raw material in step (1) are using WCB carbon steels, stainless steel, 316L, 316,304L, 304,321, chrome-molybdenum steel, alloy
One kind in steel and Chrominm-molybdenum-vanadium steel.
Selected raw material steel are put into electrosmelting of intermediate frequency first, so that liquid steel temperature is reached 1600-1700 DEG C, intermediate frequency
Electric furnace use SKX-8-16TP and SX2-4-17TP in one kind, wherein raw material using WCB carbon steels, stainless steel, 316L, 316,
One kind in 304L, 304,321, chrome-molybdenum steel, steel alloy and Chrominm-molybdenum-vanadium steel；Then metal die is pre-heated to 800-900 DEG C,
And keep constant temperature；Then centrifuge is started, in the metal die after the molten steel injection of melting in advance is preheated in advance；Then it waits casting
Part naturally cools to 800-900 DEG C, is kept for 1-10 minutes；Finally casting is water-cooled to close to room temperature, casting is taken out in demoulding,
Obtain finished product flange.
Example IV：
In embodiment three, following processes are added：
Centrifuge in step (3) is using link-suspended basket centrifuge, flat centrifuge, horizontal centrifuge, disk centrifuge
With one kind in tubular type high speed separator.
Selected raw material steel are put into electrosmelting of intermediate frequency first, so that liquid steel temperature is reached 1600-1700 DEG C, intermediate frequency
Electric furnace use SKX-8-16TP and SX2-4-17TP in one kind, wherein raw material using WCB carbon steels, stainless steel, 316L, 316,
One kind in 304L, 304,321, chrome-molybdenum steel, steel alloy and Chrominm-molybdenum-vanadium steel；Then metal die is pre-heated to 800-900 DEG C,
And keep constant temperature；Then centrifuge is started, in the metal die after the molten steel injection of melting in advance is preheated in advance, wherein centrifuging
Machine uses one in link-suspended basket centrifuge, flat centrifuge, horizontal centrifuge, disk centrifuge and tubular type high speed separator
Kind；Then it waits for that casting naturally cools to 800-900 DEG C, is kept for 1-10 minutes；Finally casting is water-cooled to close to room temperature, is taken off
Mould takes out casting, obtains finished product flange.
Then mold is added in molten steel after melting by present invention melting raw material, while preheated mold first, finally by
By natural cooling and water cooling, finished product flange is obtained, centrifugation flange is cast by using centrifugal process, belongs to casting method life
Flange is produced, carefully many compared with ordinary sand casting tissue, Quality advance is many, is less prone to tissue looseness, stomata, trachoma etc. and asks
Topic, and the flange come is cast out, blank shape size is accurate, and processing capacity is small, at low cost, solves existing flange and uses lathe
Production uses forging, production technology complicated, low production efficiency and the high problem of production cost.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of method of processing flange, it is characterised in that：Include the following steps：
(1) selected raw material steel are put into electrosmelting of intermediate frequency, liquid steel temperature is made to reach 1600-1700 DEG C；
(2) metal die is pre-heated to 800-900 DEG C, and keeps constant temperature；
(3) centrifuge is started, it will be in the metal die after preheating in the molten steel injection step (2) in step (1)；
(4) casting naturally cools to 800-900 DEG C, is kept for 1-10 minutes；
(5) casting is water-cooled to close to room temperature, demoulding takes out casting, obtains finished product flange.
2. a kind of method of processing flange according to claim 1, it is characterised in that：Middle frequency furnace in the step (1)
Using one kind in SKX-8-16TP and SX2-4-17TP.
3. a kind of method of processing flange according to claim 1, it is characterised in that：Raw material in the step (1) are adopted
With one kind in WCB carbon steels, stainless steel, 316L, 316,304L, 304,321, chrome-molybdenum steel, steel alloy and Chrominm-molybdenum-vanadium steel.
4. a kind of method of processing flange according to claim 1, it is characterised in that：Centrifuge in the step (3) is adopted
With one kind in link-suspended basket centrifuge, flat centrifuge, horizontal centrifuge, disk centrifuge and tubular type high speed separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440322.6A CN108580830A (en) | 2018-05-10 | 2018-05-10 | A kind of method of processing flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440322.6A CN108580830A (en) | 2018-05-10 | 2018-05-10 | A kind of method of processing flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108580830A true CN108580830A (en) | 2018-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810440322.6A Pending CN108580830A (en) | 2018-05-10 | 2018-05-10 | A kind of method of processing flange |
Country Status (1)
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| CN (1) | CN108580830A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434394A (en) * | 2018-12-26 | 2019-03-08 | 湛江明迪汽车零部件制造有限公司 | A kind of high pressure resistant lubricating oil pipe processing method |
| CN111069493A (en) * | 2019-12-03 | 2020-04-28 | 东台市润丰法兰制造有限公司 | Neck-equipped welding neck flange |
| CN111390123A (en) * | 2020-05-06 | 2020-07-10 | 合肥集知匠心科技发展有限公司 | Flange casting forming process |
| CN112268150A (en) * | 2020-09-28 | 2021-01-26 | 扬州大鹏机械有限公司 | High-pressure flange and casting process thereof |
| CN112719787A (en) * | 2020-12-11 | 2021-04-30 | 无锡市星达石化配件有限公司 | Forging and manufacturing method of steel flange with ultra-large diameter |
| CN113649505A (en) * | 2021-08-17 | 2021-11-16 | 扬中市旭晨精密模锻有限公司 | Manufacturing process and inspection equipment of flange valve body forge piece |
| CN115058664A (en) * | 2022-06-27 | 2022-09-16 | 江阴市龙润法兰有限公司 | High-sealing-performance pipeline flange and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104567A (en) * | 1994-06-17 | 1995-07-05 | 刘树青 | Flat flange and centrifugal casting process |
| CN1404942A (en) * | 2002-10-25 | 2003-03-26 | 周发金 | Flange-processing formation technology |
| CN104741562A (en) * | 2013-12-25 | 2015-07-01 | 青岛玉光精铸厂 | Centrifugal casting method of flange casting |
| CN104785744A (en) * | 2015-04-11 | 2015-07-22 | 中山市鸿程科研技术服务有限公司 | Centrifugal casting technology for high-pressure flange |
| CN105695848A (en) * | 2015-11-29 | 2016-06-22 | 郑臣钏 | Flange casting process |
| CN105710330A (en) * | 2014-12-04 | 2016-06-29 | 青岛新力通工业有限责任公司 | Centrifugal casting method for flange casting with bolt holes |
-
2018
- 2018-05-10 CN CN201810440322.6A patent/CN108580830A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104567A (en) * | 1994-06-17 | 1995-07-05 | 刘树青 | Flat flange and centrifugal casting process |
| CN1404942A (en) * | 2002-10-25 | 2003-03-26 | 周发金 | Flange-processing formation technology |
| CN104741562A (en) * | 2013-12-25 | 2015-07-01 | 青岛玉光精铸厂 | Centrifugal casting method of flange casting |
| CN105710330A (en) * | 2014-12-04 | 2016-06-29 | 青岛新力通工业有限责任公司 | Centrifugal casting method for flange casting with bolt holes |
| CN104785744A (en) * | 2015-04-11 | 2015-07-22 | 中山市鸿程科研技术服务有限公司 | Centrifugal casting technology for high-pressure flange |
| CN105695848A (en) * | 2015-11-29 | 2016-06-22 | 郑臣钏 | Flange casting process |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434394A (en) * | 2018-12-26 | 2019-03-08 | 湛江明迪汽车零部件制造有限公司 | A kind of high pressure resistant lubricating oil pipe processing method |
| CN111069493A (en) * | 2019-12-03 | 2020-04-28 | 东台市润丰法兰制造有限公司 | Neck-equipped welding neck flange |
| CN111390123A (en) * | 2020-05-06 | 2020-07-10 | 合肥集知匠心科技发展有限公司 | Flange casting forming process |
| CN111390123B (en) * | 2020-05-06 | 2021-07-30 | 临沂边锋自动化设备有限公司 | Flange casting forming process |
| CN112268150A (en) * | 2020-09-28 | 2021-01-26 | 扬州大鹏机械有限公司 | High-pressure flange and casting process thereof |
| CN112719787A (en) * | 2020-12-11 | 2021-04-30 | 无锡市星达石化配件有限公司 | Forging and manufacturing method of steel flange with ultra-large diameter |
| CN112719787B (en) * | 2020-12-11 | 2022-03-25 | 无锡市星达石化配件有限公司 | Manufacturing method of steel flange with super-large diameter |
| CN113649505A (en) * | 2021-08-17 | 2021-11-16 | 扬中市旭晨精密模锻有限公司 | Manufacturing process and inspection equipment of flange valve body forge piece |
| CN115058664A (en) * | 2022-06-27 | 2022-09-16 | 江阴市龙润法兰有限公司 | High-sealing-performance pipeline flange and preparation method thereof |
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| PB01 | Publication | ||
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Application publication date: 20180928 |