CN103691858B - Method for forging venturi pipe - Google Patents
Method for forging venturi pipe Download PDFInfo
- Publication number
- CN103691858B CN103691858B CN201310543899.7A CN201310543899A CN103691858B CN 103691858 B CN103691858 B CN 103691858B CN 201310543899 A CN201310543899 A CN 201310543899A CN 103691858 B CN103691858 B CN 103691858B
- Authority
- CN
- China
- Prior art keywords
- forging
- venturi tube
- heating
- blank
- venturi pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Forging (AREA)
Abstract
The invention discloses a method for forging a venturi pipe. The method comprises the following steps of selecting the forging material 304SS; heating the blank material by a heating furnace; when the heating temperature reaches 1130 to 1180 DEG C, taking the blank material out of the furnace, and forging; when the forging temperature reaches 850 DEG C, reheating, and forging; punching the forged blank to form a blank which is used for manufacturing the venturi pipe; detecting the size of the blank, and heating the blank by the heating furnace after the blank is qualified; putting the heated blank onto compression molding forging equipment to process, and processing into the venturi pipe; detecting the size of the processed venturi pipe, heating the venturi pipe by the heating furnace after the venturi pipe is qualified, heating the temperature to 1010 to 1150 DEG C, maintaining the temperature for one hour, taking the venturi pipe out of the heating furnace, and putting into cooling liquid to quickly cool. In the forging process, the blank is processed into the venturi pipe by the compression molding forging equipment, the texture structure of the venturi pipe is discontinuous, the mechanical property of the processed venturi pipe is good, and the strength is high.
Description
Technical field
The present invention relates to a kind of method of forging Venturi tube.
Background technology
Because the High Temperature High Pressure characteristic of nuclear power factory owner feedwater is so equipment must have enough intensity to meet safety
Require, Venturi measuring body portion adopts forging process, and the blank shape of forging must be close to finished form, so that
Equipment organizational structure adapts to the security requirement of nuclear power, and traditional forging mode is: in the middle of after blank material heating, punching rod enters
Row forging, forging forging out is tubular, the machined aftershaping of forging, expands partly and afterwards part in anterior, front contracting
Organizational structure is cut-off, so mechanical performance is generally speaking poor, product strength is relatively low.
Content of the invention
It is an object of the invention to overcoming defect present in prior art, provide a kind of method of forging Venturi tube,
After forging, Venturi tube organizational structure is continuously uninterrupted, good mechanical property, and product strength is high.
For achieving the above object, the technical scheme is that provide a kind of forging Venturi tube method, have as
Lower step:
A) select forging material to be 304ss, it is carried out with physicochemical property inspection, after ultrasonic examination according to calculating blanking weight
Amount carries out blanking and becomes blank；
B) blank is heated by heating furnace, 1130 DEG C～1180 DEG C forgings of coming out of the stove of heating-up temperature, forging ratio is more than
1:3, when forging temperature reaches 850 DEG C, forges after reheating again；
C) blank after forging in step b) is punched out forming the base substrate manufacturing Venturi tube；
D) detect base substrate size, qualified after heated by heating furnace, heating-up temperature be 1130 DEG C～1180
℃；
E) base substrate after step d) heating puts into processing on moulding pressing forging equipment, is processed into Venturi tube；
F) detection through step e) processing after Venturi tube size, qualified after heated by heating furnace, heat
To 1010 DEG C～1150 DEG C, after insulation 1 is little, taking-up is put in coolant and is quickly cooled down.
Preferably, step b) is heated to 1170 DEG C of forgings of coming out of the stove.
Preferably, the concrete processing method of step e) is: the base substrate heating is put into moulding pressing forging equipment
On；Molding rotation inner roll in two ends is pushed in base substrate punching hole, outer roller wheel extruded stock body；High-speed rotation makes base substrate along roller
Wheel axial extension.
Preferably, the coolant in step f) is cooling water.
Preferably, in step f), Venturi tube is transported after coming out of the stove and is less than 55s to the time of cooling water.
Preferably, in step f), the concrete grammar of water-cooled is: Venturi tube immersion depth is not less than the tank of 1.5m
Interior and reciprocating, described tank ON cycle water, not higher than 50 DEG C of water temperature in it.
Preferably, in step c), punch size is ф 80mm.
Advantages of the present invention and having the beneficial effects that: in forging process, by using moulding pressing forging equipment to base
Body is processed into Venturi tube, and Venturi tube is continuously in the organizational structure of anterior, front contracting part and rear expansion part, processing
Product good mechanical property afterwards, intensity is high.
Specific embodiment
With reference to embodiment, the specific embodiment of the present invention is further described.Following examples are only used for more
Plus clearly demonstrate technical scheme, and can not be limited the scope of the invention with this.
A kind of method of forging Venturi tube it is characterised in that: there are following steps:
A) select forging material to be 304ss, it is carried out with physicochemical property inspection, after ultrasonic examination according to calculating blanking weight
Amount carries out blanking and becomes blank；
B) blank is heated by heating furnace, 1130 DEG C～1180 DEG C forgings of coming out of the stove of heating-up temperature, forging ratio is more than
1:3, when forging temperature reaches 850 DEG C, forges after reheating again；
C) blank after forging in step b) is punched out forming the base substrate manufacturing Venturi tube, punch size is ф
80mm；
D) detect base substrate size, qualified after heated by heating furnace, heating-up temperature be 1130 DEG C～1180
℃；
E) base substrate after step d) heating puts into processing on moulding pressing forging equipment, is processed into Venturi tube；
F) detection through step e) processing after Venturi tube size, qualified after heated by heating furnace, heat
To 1010 DEG C～1150 DEG C, after insulation 1 is little, taking-up is put in coolant and is quickly cooled down.
Highly preferred technical scheme is that step b) is heated to 1170 DEG C of forgings of coming out of the stove.
The concrete processing method of step e) is: the base substrate heating is put on moulding pressing forging equipment；Two ends are become
Type rotation inner roll pushes in base substrate punching hole, outer roller wheel extruded stock body；High-speed rotation makes base substrate along running roller axial extension,
Two ends are forged using press forging mould, the shape after machining inside forging Venturi tube out, so each portion
The organizational structure divided is continuously continual it is ensured that the mechanical performance of product is more reasonable, so that product strength more preferably, makes peace
Full property is higher.
Coolant in step f) is cooling water, transports and do not surpass to the time of cooling water after Venturi tube is come out of the stove in step f)
Cross 55s.Venturi tube immersion depth is not less than in the tank of 1.5m and reciprocating, described tank ON cycle water, its
Not higher than 50 DEG C of interior water temperature.
In step b), forging includes jumping-up-pulling repeatedly, round as a ball afterwards, upsetting planar end surface, correction size.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, on the premise of without departing from the technology of the present invention principle, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of method of forging Venturi tube it is characterised in that: there are following steps:
A) select forging material to be 304ss, it is carried out with physicochemical property inspection, enters according to calculating blanking weight after ultrasonic examination
Row blanking becomes blank；
B) blank is heated by heating furnace, 1130 DEG C～1180 DEG C forgings of coming out of the stove of heating-up temperature, forging ratio is more than 1:3,
When forging temperature reaches 850 DEG C, forge again after reheating；
C) blank after forging in step b) is punched out forming the base substrate manufacturing Venturi tube；
D) detect base substrate size, qualified after heated by heating furnace, heating-up temperature be 1130 DEG C～1180 DEG C；
E) base substrate after step d) heating puts into processing on moulding pressing forging equipment, is processed into Venturi tube, heating
Good base substrate is put on moulding pressing forging equipment；Its concrete processing method is that molding rotation inner roll in two ends is pushed base substrate
In punching hole, outer roller wheel extruded stock body；High-speed rotation makes base substrate along running roller axial extension；
F) detection through step e) processing after Venturi tube size, qualified after heated by heating furnace, be heated to
1010 DEG C～1150 DEG C, after insulation 1 is little, taking-up is put in coolant and is quickly cooled down.
2. as claimed in claim 1 forging Venturi tube method it is characterised in that: step b) is heated to 1170 DEG C of forgings of coming out of the stove
Make.
3. as claimed in claim 1 forging Venturi tube method it is characterised in that: the coolant in step f) be cooling
Water.
4. as claimed in claim 3 forging Venturi tube method it is characterised in that: after in step f), Venturi tube is come out of the stove transport
The time transporting to cooling water is less than 55s.
5. as claimed in claim 4 forging Venturi tube method it is characterised in that: the concrete grammar of water-cooled in step f)
It is: Venturi tube immersion depth is not less than in the tank of 1.5m and reciprocating, described tank ON cycle water, water in it
Not higher than 50 DEG C of temperature.
6. as claimed in claim 1 forging Venturi tube method it is characterised in that: in step c) punch size be ф
80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543899.7A CN103691858B (en) | 2013-11-06 | 2013-11-06 | Method for forging venturi pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543899.7A CN103691858B (en) | 2013-11-06 | 2013-11-06 | Method for forging venturi pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103691858A CN103691858A (en) | 2014-04-02 |
| CN103691858B true CN103691858B (en) | 2017-02-01 |
Family
ID=50353610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310543899.7A Active CN103691858B (en) | 2013-11-06 | 2013-11-06 | Method for forging venturi pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103691858B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106180501A (en) * | 2015-04-29 | 2016-12-07 | 江苏昊鹏机械有限公司 | A kind of Forging Technology |
| CN111346997A (en) * | 2020-03-25 | 2020-06-30 | 攀钢集团江油长城特殊钢有限公司 | Processing technology of shell for missile |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5855851B2 (en) * | 1976-04-29 | 1983-12-12 | 愛知製鋼株式会社 | Forging method |
| US7610818B2 (en) * | 2006-10-05 | 2009-11-03 | Syncrude Canada Ltd. | Flow meter for bitumen froth pipelines |
| US20090071219A1 (en) * | 2007-09-14 | 2009-03-19 | Western Canada Machining Inc. | Apparatus and method for forging premium coupling blanks |
| CN101774107B (en) * | 2009-12-31 | 2011-05-04 | 上海新闵重型锻造有限公司 | Method for forging Venturi tubes |
| CN101893462A (en) * | 2010-06-28 | 2010-11-24 | 江阴市节流装置厂有限公司 | Extension-type Venturi tube and processing method and application method thereof |
| CN202734879U (en) * | 2012-07-25 | 2013-02-13 | 温州市达安仪表厂 | Integral Venturi tube |
| CN202869562U (en) * | 2012-10-27 | 2013-04-10 | 江阴市神州测控设备有限公司 | Machining-type Venturi tube |
-
2013
- 2013-11-06 CN CN201310543899.7A patent/CN103691858B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103691858A (en) | 2014-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103736734B (en) | Hot rolling CPE unit prepares the technique of the super 13Cr seamless steel pipe of high-chromium alloy | |
| CN103358100B (en) | Forging and molding process method for titanium alloy tubular piece | |
| CN101706019B (en) | Method for manufacturing large-caliber thick-wall seamless steel tube in vertical extrusion way | |
| CN103706743B (en) | Die-forging forming process of titanium-alloy forged drum piece | |
| CN105252230B (en) | Machining process for inclined tee | |
| CN103589975B (en) | Die-less spinning technology for large thick-wall aluminum alloy curved bus type rotary body part | |
| CN110369548A (en) | A kind of titanium alloy is seamless square and rectangular pipe and its manufacturing method and application | |
| CN104338882B (en) | The forming method of generation Ⅲ nuclear power cooling medium pump motor casing forging | |
| CN110125314A (en) | A kind of forging method of high-carbon-chromium bearing steel forging stock | |
| CN103691858B (en) | Method for forging venturi pipe | |
| CN104625627B (en) | A kind of preparation method of plasma rotating electrode titanium alloy electrode rod | |
| CN104551547A (en) | Processing process of high-intensity titanium alloy pipe fittings | |
| CN104759849A (en) | Manufacturing method for flange component for controlling automobile exhaust | |
| CN108237197B (en) | A kind of forging method improving the flaw detection of structural steel large-sized ring part | |
| CN108998650B (en) | Method for manufacturing large-caliber thick-wall seamless steel pipe of 630 ℃ ultra-supercritical unit G115 | |
| CN103722043A (en) | Production method and detection method of titanium alloy seamless tube | |
| CN104138927B (en) | A kind of method of producing titanium alloy tube | |
| CN106002096A (en) | One-time fire forging method for M50 steel bearing ring forge piece | |
| CN107755454A (en) | A kind of manufacture method of high-strength corrosion-resisting drawn tube for marine settings engineering | |
| CN102873126B (en) | Manufacturing method of large-aperture thin-walled seamless steel tube for nuclear power plant | |
| CN107716587A (en) | A kind of processing method of thin-wall titanium alloy pipe | |
| CN108746440B (en) | A kind of high cylindrical forged piece segmentation milling method of large-sized high-temperature alloy | |
| CN113770290B (en) | Forging method of large-specification high-utilization red copper thin-wall hollow tube | |
| CN113305166B (en) | Diameter-expanding hot extrusion process for bimetal alloy steel composite pipe | |
| CN215746161U (en) | Special-shaped horse bar and inner step gear forging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method for forging venturi pipe Effective date of registration: 20180705 Granted publication date: 20170201 Pledgee: Bank of Communications Ltd Wuxi branch Pledgor: JIANGYIN THROTTLING DEVICE MANUFACTURER CO., LTD. Registration number: 2018320010027 |