CN104162765A - Pipe fitting machining technology - Google Patents
Pipe fitting machining technology Download PDFInfo
- Publication number
- CN104162765A CN104162765A CN201410319365.0A CN201410319365A CN104162765A CN 104162765 A CN104162765 A CN 104162765A CN 201410319365 A CN201410319365 A CN 201410319365A CN 104162765 A CN104162765 A CN 104162765A
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- CN
- China
- Prior art keywords
- pipe fitting
- pipe
- welding
- heating
- machining technology
- 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.)
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Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
Abstract
The invention discloses a pipe fitting machining technology. According to the pipe fitting machining technology, a pipe fitting is mainly made of a pipe, a plate and a rod, the shape, the size and other requirements of a blank are realized according to technology stipulations of different products, a high-frequency induction heating method is adopted in the pipe fitting when a hot pushing bend or a hot bending elbow is formed, the temperature ranges from 160 DEG C to 220 DEG C, the pipe fitting is made of welded pipes, a welding ground wire must be firmly fixed to the end of the pipe through a stainless steel clamp, the welding temperature ranges from 260 DEG C to 370 DEG C, the pipe fitting thermal treatment temperature is not lower than 723 DEG C, rust and scratches on the surface of the pipe fitting are removed through surface treatment methods, such as abrasive blasting, shot blasting, grinding and acid pickling, of the pipe fitting, cutting is mainly completed through a universal machine tool, and surface protection of carbon steel and alloy steel is usually achieved through a painting method. The pipe fitting machining technology is complete, energy and materials are saved, workmanship is exquisite, and the service life is long.
Description
Technical field
The present invention relates to a kind of pipe fitting processing, particularly a kind of pipe fitting processing technology, belongs to metal manufacture field.
Background technology
Pipe fitting is pipe to be connected into the part of pipeline, according to method of attachment, can be divided into socket fitting, threaded fitting, flanged fitting and weld-end fittings four classes.The multiplex material identical with pipe made.There are elbow (ell), flange, three-way pipe, four-way pipe (crosshead) and reduced pipe (concentric reducer) etc.Elbow is for the place of pipeline turning, flange is used for making pipe and the interconnective part of pipe, is connected in pipe end, and three-way pipe is for three places that pipe collects, four-way pipe is for four places that pipe collects, the place that reduced pipe is connected for the two tubes of different tube diameters, now, China has many enterprises to produce pipe fitting processing, annual production is 30,000 tons of left and right, wherein approximately 30% is poly double-wall corrugated pipe, in cable jacket, there is kind of a new product that is called as " silicon core pipe ", China widely applies in communication construction, all newly-built every year, adjust a large amount of highways, the annual supporting effective amount of silicon core for this reason will be over 20,000 tons, the market consumption that expects this field polyethylene pipe in 2005 will reach 40,000 tons, the enterprise of domestic investment polyvinyl piping materials is also less at present, strong enterprise still less, most or medium and small, township enterprise.
China has been maximum in the world construction material producing country and country of consumption, main building material product cement, plate glass, construction sanitary ceramic, stone material and materials for wall Isoquant rank first in the world for many years, simultaneously, building material product quality improves constantly, the energy and raw materials consumption decline year by year, various building materials continue to bring out, building material product constantly upgrades, Cangzhou pipeline equipment manufacture solid foundation, family more than 3200 of existing manufacturing enterprise, wherein above (income from sales the is more than 5,000,000 yuan) enterprise of scale is 222, practitioner 12.4 ten thousand people.Major product has the steel pipes such as the seamless steel pipe of the multiple calibers such as various special steels, stainless steel, carbon steel, low mesohigh boiler tube, petroleum drilling inserting tube; The bend pipe tools such as various threeways, four-way, valve, reduced pipe; Various steel flanges, forged flange; The pipe fittings such as various pipe supports, instrument, oil well blowout preventing device; The plastic conduits such as various polyethylene pipes, PA tube, more than 370 kind 3500 plurality of specifications of totally 16 large classes.Manufacturing process mainly adopts hot rolling straight weld, spiral double-submerged arc, forges, forging and stamping, medium frequency pushing, cold forming, hot extrusion etc., 2020 millimeters of pipeline maximum machining diameters.Product is widely used in municipal administration, petrochemical industry, transfering natural gas from the west to the east, the engineering field such as boats and ships and nuclear power, 2,500 ten thousand tons of year design working abilities, within 2010, the above enterprise of scale realizes 13,000,000,000 yuan of industrial added values, increase by 31.7% on a year-on-year basis, account for 16.1% of the above enterprise of whole scales value added, Cangzhou pipeline equipment manufacture forward " on three " (upper scale, upper level, upper equipment) and " three height " (high-end, high pressure, high added value) target strides forward, make every effort to promote pipeline equipment manufacture ability and reach 3,000 ten thousand tons, Cangzhou will become well-known both at home and abroad " pipeline equipment is manufactured and research and development base " and " pipeline equip all ", Eleventh Five-Year Plan capital expenditure chess to mid-game, highway, the explosive growths of infrastructure construction investment such as railway and growing steadily of normal domestic construction investment, make building trade be in the prosperous up stage, simultaneously, building under the background of Energy-saving Society and country's reinforcement capability of independent innovation, energy-conservation and technological innovation theme is by the Hot spots for development that is industry.
Summary of the invention
Goal of the invention: for for there being coarse, the incomplete problem of processing technology of pipe fitting processing in prior art, the invention provides a kind of pipe fitting processing technology.
Technical scheme: for achieving the above object, the invention provides a kind of pipe fitting processing technology, it is characterized in that: comprise
A, blanking: described pipe fitting material therefor is mainly pipe, sheet material and bar, the shape of blank, size and other requirement are carried out according to the process stipulation of different product, and the baiting method of pipe has band sawing machine or hacksawing machine cutting, gas cutting, plasma cutting;
B, heating: described pipe fitting is when hot push elbow or hot bending bent pipe shaping, the method of employing or high-frequency induction heating, mode of heating is to synchronize the laser heating carrying out with elbow or bending tube forming process, and pipe is heated and completes forming process at the volley, 160 °～220 ° of temperature;
C, welding: described pipe fitting is the pipe fitting of manufacturing with welded tube, welding ground must be with stainless steel clamp firmly in pipe termination, 260 °～370 ° of welding temperatures;
D, heat treatment: described pipe fitting heat treatment temperature is not less than 723 ℃;
E, surface treatment: the surface treatment of described pipe fitting adopts the methods such as sandblast, ball blast, polishing, pickling to remove the corrosion of product surface, cut conventionally;
F, machining: complete welding end, the physical dimension of pipe fitting, the operation of form and position tolerance processing, described machining mainly completes by universal machine tools;
G, surfacecti proteon: the method that the surfacecti proteon of carbon steel, steel alloy pipe fitting is adopted conventionally to japanning.
Pipe fitting processing technology of the present invention is complete, saves energy materials, exquisite in workmanship, long service life.
The rotating speed of described universal machine tools, 1200～1500, can be increased work efficiency like this.
Beneficial effect: prior art of the present invention is compared tool and had the following advantages:
1, pipe fitting processing technology of the present invention is complete, saves energy materials, exquisite in workmanship, long service life;
2, by having increased the rotating speed of lathe, can increase work efficiency.
The specific embodiment
By specific embodiment, the present invention is further elaborated, be noted that for those skilled in the art, under the premise without departing from the principles of the invention, the modification of the various equivalent form of values of the present invention is all fallen within to the application's claims limited range.
Embodiment 1:
A pipe fitting processing technology, comprises the steps:
A, blanking: described pipe fitting material therefor is mainly pipe, sheet material and bar, the shape of blank, size and other requirement are carried out according to the process stipulation of different product, and the baiting method of pipe has band sawing machine or hacksawing machine cutting, gas cutting, plasma cutting;
B, heating: described pipe fitting is when hot push elbow or hot bending bent pipe shaping, the method of employing or high-frequency induction heating, mode of heating is to synchronize the laser heating carrying out with elbow or bending tube forming process, and pipe is heated and completes forming process at the volley, 160 ° of temperature;
C, welding: described pipe fitting is the pipe fitting of manufacturing with welded tube, welding ground must be with stainless steel clamp firmly in pipe termination, 260 ° of welding temperatures;
D, heat treatment: described pipe fitting heat treatment temperature is not less than 723 ℃;
E, surface treatment: the surface treatment of described pipe fitting adopts the methods such as sandblast, ball blast, polishing, pickling to remove the corrosion of product surface, cut conventionally;
F, machining: complete welding end, the physical dimension of pipe fitting, the operation of form and position tolerance processing, described machining mainly completes by universal machine tools, and the rotating speed of described universal machine tools, 1200, can be increased work efficiency like this;
G, surfacecti proteon: the method that the surfacecti proteon of carbon steel, steel alloy pipe fitting is adopted conventionally to japanning.
Pipe fitting processing technology of the present invention is complete, saves energy materials, exquisite in workmanship, long service life.
Embodiment 2:
A pipe fitting processing technology, comprises the steps:
A, blanking: described pipe fitting material therefor is mainly pipe, sheet material and bar, the shape of blank, size and other requirement are carried out according to the process stipulation of different product, and the baiting method of pipe has band sawing machine or hacksawing machine cutting, gas cutting, plasma cutting;
B, heating: described pipe fitting is when hot push elbow or hot bending bent pipe shaping, the method of employing or high-frequency induction heating, mode of heating is to synchronize the laser heating carrying out with elbow or bending tube forming process, and pipe is heated and completes forming process at the volley, 170 ° of temperature;
C, welding: described pipe fitting is the pipe fitting of manufacturing with welded tube, welding ground must be with stainless steel clamp firmly in pipe termination, 320 ° of welding temperatures;
D, heat treatment: described pipe fitting heat treatment temperature is not less than 723 ℃;
E, surface treatment: the surface treatment of described pipe fitting adopts the methods such as sandblast, ball blast, polishing, pickling to remove the corrosion of product surface, cut conventionally;
F, machining: complete welding end, the physical dimension of pipe fitting, the operation of form and position tolerance processing, described machining mainly completes by universal machine tools, and the rotating speed of described universal machine tools, 1300, can be increased work efficiency like this;
G, surfacecti proteon: the method that the surfacecti proteon of carbon steel, steel alloy pipe fitting is adopted conventionally to japanning.
Pipe fitting processing technology of the present invention is complete, saves energy materials, exquisite in workmanship, long service life.
Embodiment 3:
A pipe fitting processing technology, comprises the steps:
A, blanking: described pipe fitting material therefor is mainly pipe, sheet material and bar, the shape of blank, size and other requirement are carried out according to the process stipulation of different product, and the baiting method of pipe has band sawing machine or hacksawing machine cutting, gas cutting, plasma cutting;
B, heating: described pipe fitting is when hot push elbow or hot bending bent pipe shaping, the method of employing or high-frequency induction heating, mode of heating is to synchronize the laser heating carrying out with elbow or bending tube forming process, and pipe is heated and completes forming process at the volley, 210 ° of temperature;
C, welding: described pipe fitting is the pipe fitting of manufacturing with welded tube, welding ground must be with stainless steel clamp firmly in pipe termination, 350 ° of welding temperatures;
D, heat treatment: described pipe fitting heat treatment temperature is not less than 723 ℃;
E, surface treatment: the surface treatment of described pipe fitting adopts the methods such as sandblast, ball blast, polishing, pickling to remove the corrosion of product surface, cut conventionally;
F, machining: complete welding end, the physical dimension of pipe fitting, the operation of form and position tolerance processing, described machining mainly completes by universal machine tools, and the rotating speed of described universal machine tools, 1400, can be increased work efficiency like this;
G, surfacecti proteon: the method that the surfacecti proteon of carbon steel, steel alloy pipe fitting is adopted conventionally to japanning.
Pipe fitting processing technology of the present invention is complete, save energy materials, exquisite in workmanship, the features such as excellent performance, safe and reliable, easy for installation, technology maturation, the burn into life-span is not long, can be widely used in the wide field such as indoor and outdoor plumbing, building water supply and drainage, Gas Pipe, blow-off pipe, and its all technical all can reach international and relative national standards requirement, compare with the steel pipe of present use, cost can reduce by 12% left and right, and working life can reach 50 years, and maintenance cost is low.
Embodiment 4:
A pipe fitting processing technology, comprises the steps:
A, blanking: described pipe fitting material therefor is mainly pipe, sheet material and bar, the shape of blank, size and other requirement are carried out according to the process stipulation of different product, and the baiting method of pipe has band sawing machine or hacksawing machine cutting, gas cutting, plasma cutting;
B, heating: described pipe fitting is when hot push elbow or hot bending bent pipe shaping, the method of employing or high-frequency induction heating, mode of heating is to synchronize the laser heating carrying out with elbow or bending tube forming process, and pipe is heated and completes forming process at the volley, 220 ° of temperature;
C, welding: described pipe fitting is the pipe fitting of manufacturing with welded tube, welding ground must be with stainless steel clamp firmly in pipe termination, 370 ° of welding temperatures;
D, heat treatment: described pipe fitting heat treatment temperature is not less than 723 ℃;
E, surface treatment: the surface treatment of described pipe fitting adopts the methods such as sandblast, ball blast, polishing, pickling to remove the corrosion of product surface, cut conventionally;
F, machining: complete welding end, the physical dimension of pipe fitting, the operation of form and position tolerance processing, described machining mainly completes by universal machine tools, and the rotating speed of described universal machine tools, 1500, can be increased work efficiency like this;
G, surfacecti proteon: the method that the surfacecti proteon of carbon steel, steel alloy pipe fitting is adopted conventionally to japanning.
Pipe fitting processing technology of the present invention is complete, save energy materials, exquisite in workmanship, the features such as excellent performance, safe and reliable, easy for installation, technology maturation, the burn into life-span is not long, can be widely used in the wide field such as indoor and outdoor plumbing, building water supply and drainage, Gas Pipe, blow-off pipe, and its all technical all can reach international and relative national standards requirement, compare with the steel pipe of present use, cost can reduce by 12% left and right, and working life can reach 50 years, and maintenance cost is low.
Claims (2)
1. a pipe fitting processing technology, is characterized in that: comprise
A, blanking: described pipe fitting material therefor is mainly pipe, sheet material and bar, the shape of blank, size and other requirement are carried out according to the process stipulation of different product, and the baiting method of pipe has band sawing machine or hacksawing machine cutting, gas cutting, plasma cutting;
B, heating: described pipe fitting is when hot push elbow or hot bending bent pipe shaping, the method of employing or high-frequency induction heating, mode of heating is to synchronize the laser heating carrying out with elbow or bending tube forming process, and pipe is heated and completes forming process at the volley, 160 °～220 ° of temperature;
C, welding: described pipe fitting is the pipe fitting of manufacturing with welded tube, welding ground must be with stainless steel clamp firmly in pipe termination, 260 °～370 ° of welding temperatures;
D, heat treatment: described pipe fitting heat treatment temperature is not less than 723 ℃;
E, surface treatment: the surface treatment of described pipe fitting adopts the methods such as sandblast, ball blast, polishing, pickling to remove the corrosion of product surface, cut conventionally;
F, machining: complete welding end, the physical dimension of pipe fitting, the operation of form and position tolerance processing, described machining mainly completes by universal machine tools;
G, surfacecti proteon: the method that the surfacecti proteon of carbon steel, steel alloy pipe fitting is adopted conventionally to japanning.
2. according to a kind of pipe fitting processing technology described in claims 1, it is characterized in that: the rotating speed of described universal machine tools is 1200～1500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319365.0A CN104162765A (en) | 2014-07-07 | 2014-07-07 | Pipe fitting machining technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319365.0A CN104162765A (en) | 2014-07-07 | 2014-07-07 | Pipe fitting machining technology |
Publications (1)
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| CN104162765A true CN104162765A (en) | 2014-11-26 |
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| CN201410319365.0A Pending CN104162765A (en) | 2014-07-07 | 2014-07-07 | Pipe fitting machining technology |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994528A (en) * | 2018-09-13 | 2018-12-14 | 中冶赛迪技术研究中心有限公司 | The marching method of continuous hot bending molding and silent welding sequence |
| CN108994548A (en) * | 2018-09-19 | 2018-12-14 | 张化机（苏州）重装有限公司 | The processing technology of 90 degree of elbows |
| CN111001989A (en) * | 2019-12-21 | 2020-04-14 | 佛山市东正宏骏金属制品有限公司 | Surface treatment process for stainless steel seamless welding integrated forming |
| CN112025218A (en) * | 2020-08-24 | 2020-12-04 | 上海迈道汽配有限公司 | Flange machining process |
| CN112276498A (en) * | 2020-09-07 | 2021-01-29 | 湖北隐冠轴业有限公司 | Finish machining process for new energy automobile starter shaft double grooves |
| CN112846659A (en) * | 2020-12-31 | 2021-05-28 | 上海久砾不锈钢管有限公司 | Seamless method for stainless steel welded pipe and application thereof |
| CN117773509A (en) * | 2024-02-26 | 2024-03-29 | 江苏蚨郡智能科技有限公司 | Production process of high-purity gas stainless steel pipeline |
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| US4165245A (en) * | 1977-01-10 | 1979-08-21 | Sulzer Brothers Limited | Method for the fabrication of internally weld-cladded pipe elbows |
| CN1817556A (en) * | 2006-02-28 | 2006-08-16 | 喻勇 | Flange production |
| CN101514772A (en) * | 2008-02-20 | 2009-08-26 | 江阴市恒润法兰有限公司 | Method for preparing special flange for wind nuclear power |
| CN101574775A (en) * | 2009-04-24 | 2009-11-11 | 江阴市东发机械设备制造有限公司 | Method for preparing butt-welding elbow through molding of stainless steel composite steel plate |
| CN102284671A (en) * | 2010-06-21 | 2011-12-21 | 中国石油天然气集团公司 | Manufacturing process method for high-steel-grade large-aperture thick-wall tee joint |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4165245A (en) * | 1977-01-10 | 1979-08-21 | Sulzer Brothers Limited | Method for the fabrication of internally weld-cladded pipe elbows |
| CN1817556A (en) * | 2006-02-28 | 2006-08-16 | 喻勇 | Flange production |
| CN101514772A (en) * | 2008-02-20 | 2009-08-26 | 江阴市恒润法兰有限公司 | Method for preparing special flange for wind nuclear power |
| CN101574775A (en) * | 2009-04-24 | 2009-11-11 | 江阴市东发机械设备制造有限公司 | Method for preparing butt-welding elbow through molding of stainless steel composite steel plate |
| CN102284671A (en) * | 2010-06-21 | 2011-12-21 | 中国石油天然气集团公司 | Manufacturing process method for high-steel-grade large-aperture thick-wall tee joint |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994528A (en) * | 2018-09-13 | 2018-12-14 | 中冶赛迪技术研究中心有限公司 | The marching method of continuous hot bending molding and silent welding sequence |
| CN108994548A (en) * | 2018-09-19 | 2018-12-14 | 张化机（苏州）重装有限公司 | The processing technology of 90 degree of elbows |
| CN111001989A (en) * | 2019-12-21 | 2020-04-14 | 佛山市东正宏骏金属制品有限公司 | Surface treatment process for stainless steel seamless welding integrated forming |
| CN112025218A (en) * | 2020-08-24 | 2020-12-04 | 上海迈道汽配有限公司 | Flange machining process |
| CN112276498A (en) * | 2020-09-07 | 2021-01-29 | 湖北隐冠轴业有限公司 | Finish machining process for new energy automobile starter shaft double grooves |
| CN112846659A (en) * | 2020-12-31 | 2021-05-28 | 上海久砾不锈钢管有限公司 | Seamless method for stainless steel welded pipe and application thereof |
| CN112846659B (en) * | 2020-12-31 | 2023-04-11 | 上海久砾不锈钢管有限公司 | Seamless method for stainless steel welded pipe and application thereof |
| CN117773509A (en) * | 2024-02-26 | 2024-03-29 | 江苏蚨郡智能科技有限公司 | Production process of high-purity gas stainless steel pipeline |
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Application publication date: 20141126 |