CN103486349B - The preparation method of spheroidal graphite cast iron push pipe - Google Patents
The preparation method of spheroidal graphite cast iron push pipe Download PDFInfo
- Publication number
- CN103486349B CN103486349B CN201310434425.9A CN201310434425A CN103486349B CN 103486349 B CN103486349 B CN 103486349B CN 201310434425 A CN201310434425 A CN 201310434425A CN 103486349 B CN103486349 B CN 103486349B
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- China
- Prior art keywords
- pipe
- ductile iron
- iron pipe
- positioning block
- body die
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Classifications
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- 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
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/153—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and concrete with or without reinforcement
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- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a kind of preparation method of spheroidal graphite cast iron push pipe, relate to technical field of pipe.This spheroidal graphite cast iron push pipe comprises push pipe flange, ductile iron pipe and wraps in the cement layer of ductile iron pipe outer wall, cement layer inside is provided with the metal frame of integrated type, cement layer lower end flushes with the bellmouth face of ductile iron pipe, upper end flushes with above the flange positioning block on ductile iron pipe outer wall, flange positioning block is more than 3, and be in same level high uniformity and be distributed in the outer wall of ductile iron pipe circumferentially, push pipe flange is located at the upper surface of flange positioning block and welds with ductile iron pipe.One-piece casting is carried out to the appearance of ductile iron pipe, casting process one-time-reach-place, fast convenient and simple, the spheroidal graphite cast iron push pipe intensity prepared is high, tension anti-top performance is good.
Description
Technical field
The present invention relates to technical field of pipe.
Background technique
Present stage, China's Urbanization Construction deepened continuously development, in state key project financing and Urban Buried Pipeline Network, ductile iron pipe gets a lot of applications, but pipe installation need not allow the area at ground excavation groove through populous or bustling street etc., or due to the restriction by execution conditions, as crossing highway, railway, river, above ground structure etc., the area at ground ditching and laying pipeline or cannot be difficult to.Now common ductile iron pipe is just difficult to the requirement reaching us, now just can use the push pipe that ductile iron pipe appearance builds stiffening rib and cement, and push pipe is that ductile iron pipe is formed by outsourcing cement and method such as increase flange and stiffening rib etc.Can by thrustor in work progress, when not excavating irrigation canals and ditches, by pipeline in underground jacking paving section by section, this just needs the push pipe using a large amount of ductile iron pipes.
Therefore a kind of push pipe of ductile iron pipe outsourcing cement and its preparation method is efficiently and effectively needed now.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of spheroidal graphite cast iron push pipe for provided underground and prepares the method for this push pipe quickly and easily, this spheroidal graphite cast iron push pipe intensity is high, resistance to compression impact resistance strong, can bear larger ejection force, and its preparation method technique is convenient and swift, achieving integrated type builds shaping, one-time-reach-place, and built-in metal skeleton and flange positioning block, effectively increase the intensity of push pipe.
For solving the problem, the technological scheme that the present invention takes is to provide a kind of spheroidal graphite cast iron push pipe, comprise push pipe flange, ductile iron pipe and wrap in the cement layer of ductile iron pipe outer wall, described cement layer inside is provided with the metal frame of integrated type, cement layer lower end flushes with the bellmouth face of ductile iron pipe, upper end flushes with above the flange positioning block on ductile iron pipe outer wall, described flange positioning block is more than 3, and be in same level high uniformity and be distributed in the outer wall of ductile iron pipe circumferentially, push pipe flange is located at the upper surface of flange positioning block and welds with ductile iron pipe.
The metal frame of preferred described integrated type is the mesh spacing be processed into by the wire of diameter 2mm to 15mm is the wire netting of 10mm to 400mm, and described metal frame is cylindrically arranged in ductile iron pipe periphery.
Preferred described flange positioning block is welded with ductile iron pipe outer wall by the location gusset bottom it, and described location gusset welds with the bottom vertical of flange positioning block.
The preparation method of described spheroidal graphite cast iron push pipe, is characterized in that having following steps: the first step: at the tube wall surrounding uniform welding flange positioning block of ductile iron pipe socket side; Second step: arrange metal frame in the tube wall surrounding of ductile iron pipe; 3rd step: ductile iron pipe entangles by the removable body die being greater than ductile iron pipe with diameter, and is placed on base; 4th step: place funnel at the top of ductile iron pipe, body die is sealed; 5th step: from top to bottom to the space concreting between ductile iron pipe and body die, builds and stops behind place building to described flange positioning block, remove funnel, built by the protecting cover being positioned at body die top; 6th step: the ductile iron pipe of building and body die are delivered to health pond or the health of health district, removes body die after health, is then soldered on described flange positioning block by push pipe flange, and polishes to cement layer surface.
Preferred described removable body die is combined by the parting that two, left and right is identical.
Preferred described flange positioning block arranges 4 to 36 according to the large I of ductile iron pipe socket caliber.
Preferably described body die to be sealed into: sealing flange is set in the bottom of body die, and is provided with felt collar on sealing flange.
The beneficial effect adopting technique scheme to produce is: what this method preparing the push pipe of ductile iron pipe outsourcing cement adopted is carry out one-piece casting to the appearance of ductile iron pipe, casting process one-time-reach-place, build without the need to layering split, convenient to operation, and mould sealing is good, ensure that the intensity of mould in architectural process, there will not be the phenomenon of burst-mode, this spheroidal graphite cast iron push pipe intensity is high, resistance to compression impact resistance is strong, and built-in metal skeleton and flange positioning block and the location gusset that is located at bottom flange positioning block, effectively increase the intensity of push pipe.
Accompanying drawing explanation
The structural representation of Fig. 1 spheroidal graphite cast iron push pipe of the present invention.
View is built in Fig. 2 the present invention preparation.
Fig. 3 is the structural representation of protecting cover.
Wherein, 1, ductile iron pipe, 2, metal frame, 3, protecting cover, 4, cement layer, 5, push pipe flange, 6, parting, 7, location gusset, 8, flange positioning block, 9, fixing bolt, 10, sealing flange, 11, felt collar, 12, funnel.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation: a kind of spheroidal graphite cast iron push pipe, comprise push pipe flange 5, ductile iron pipe 1 and wrap in the cement layer 4 of ductile iron pipe 1 outer wall, cement layer 4 inside is provided with the metal frame 2 of integrated type, cement layer 4 lower end flushes with the bellmouth face of ductile iron pipe 1, upper end flushes above with the flange positioning block 8 on ductile iron pipe 1 outer wall, flange positioning block 8 is more than 3 and is in same level high uniformity to be distributed in the outer wall of ductile iron pipe 1 circumferentially, push pipe flange 5 is located at the upper surface of flange positioning block 8 and welds with ductile iron pipe 1.The metal frame 2 of described integrated type is the mesh spacing be processed into by the wire of diameter 2mm to 15mm is the wire netting of 10mm to 400mm, and described metal frame 2 is cylindrically arranged in the periphery of ductile iron pipe 1.Described flange positioning block 8 is welded with ductile iron pipe 1 outer wall by the location gusset 7 bottom it, and described location gusset 7 welds with the bottom vertical of flange positioning block 8.
The preparation method of this spheroidal graphite cast iron push pipe, has following steps: the first step: at the tube wall surrounding uniform welding flange positioning block 8 of ductile iron pipe 1 socket side; Second step: arrange metal frame 2 in the tube wall surrounding of ductile iron pipe 1; 3rd step: ductile iron pipe 1 entangles by the removable body die being greater than ductile iron pipe 1 with diameter, and is placed on base; 4th step: place funnel 12 at the top of ductile iron pipe 1, body die is sealed; 5th step: from top to bottom to the space concreting between ductile iron pipe 1 and body die, builds and stops behind place building to described flange positioning block 8, remove funnel 12, built by the protecting cover 3 being positioned at body die top; 6th step: the ductile iron pipe 1 of building and body die are delivered to health pond or the health of health district, removes body die after health, is then soldered on described flange positioning block 8 by push pipe flange 5, and polishes to cement layer 4 surface.
Removable body die is combined by the parting 6 that two, left and right is identical.Described flange positioning block 8 arranges 4 to 36 according to the large I of ductile iron pipe 1 socket caliber.Described body die to be sealed into: sealing flange 10 is set in the bottom of body die, and is provided with felt collar 11 on sealing flange 10.
Parting 6 is two isometrical semi-circular cylindrical structures, and its internal diameter equals the bellmouth external diameter of the ductile iron pipe 1 will preparing push pipe, and bottom it, be provided with sealing flange 10.Described sealing flange 10 is fixed by screw card and die end, and between sealing flange 10 and body die, is provided with felt collar 11 for sealing.The protecting cover 3 that screw fastens ring is provided with equally on the top of body die.Parting 6 is also provided with hoisting ring and is provided with threaded dismounting hole in the joint of two partings 6.The ductile iron pipe 1 produced first is ready to by staff, according to the push pipe of production requirement processing different size during production.First the wire of diameter 2-15mm is processed into the wire netting of spacing 10-400mm, be rolled into metal frame 2, be inserted in outside the ductile iron pipe 1 of each specification, spigot welding processing all-in-one-piece location gusset 7 and the flange positioning block 8 in advance of the ductile iron pipe 1 of metal frame 2 will be packaged again, the spigot 4-36 be evenly distributed on, then metal frame 2 and location gusset 7 are housed, after in the body die that about ductile iron pipe 1 loading of flange positioning block 8, two partings 6 are combined, hang hoisting ring with hoisting apparatus mould holded up to fix, again mold bottom sealing flange 10 fixation, funnel 12 to flange positioning block 8 place is installed.In mould, fill by the gap between funnel 12 and flange positioning block 8 concrete be stirred in proportion again and also use the blanking limit ram-jolt of vibrator limit simultaneously, after being filled to concrete to flange positioning block 8 position, the lower funnel 12 of dismounting, covers protecting cover 3 and then will fill concrete mold integral and deliver to health pond or the health of health district.Hang out mould after health to keep flat, dismantle lower seal flange 10 successively, then the clamping bolt 9 of fixing parting 6 is pulled down, utilize dismounting tapped hole bolt to back down body die, semi-finished product push pipe is taken out.Finally push pipe flange 5 and the flange positioning block 8 established in advance are welded together, then repairing of being polished again on cement layer 4 surface makes its smooth surface complete, carry out spray painting preservative treatment, prepared by push pipe product.
The beneficial effect adopting technique scheme to produce is: what this method preparing the push pipe of ductile iron pipe outsourcing cement adopted is carry out one-piece casting to the appearance of ductile iron pipe, casting process one-time-reach-place, build without the need to layering split, convenient to operation, and mould sealing is good, ensure that the intensity of mould in architectural process, there will not be the phenomenon of burst-mode, this spheroidal graphite cast iron push pipe intensity is high, resistance to compression impact resistance is strong, and built-in metal skeleton and flange positioning block and the location gusset that is located at bottom flange positioning block, effectively increase the intensity of push pipe.
Claims (4)
1. a preparation method for spheroidal graphite cast iron push pipe, is characterized in that:
The first step: at tube wall surrounding uniform welding flange positioning block (8) of ductile iron pipe (1) socket side;
Second step: arrange metal frame (2) in the tube wall surrounding of ductile iron pipe (1);
3rd step: ductile iron pipe (1) entangles by the removable body die being greater than ductile iron pipe (1) with diameter, and is placed on base;
4th step: place funnel (12) at the top of ductile iron pipe (1), body die is sealed;
5th step: from top to bottom to the space concreting between ductile iron pipe (1) and body die, builds place's stopping to described flange positioning block (8) and builds, remove funnel (12), built by the protecting cover (3) being positioned at body die top;
6th step: the ductile iron pipe of building (1) and body die are delivered to health pond or the health of health district, after health, body die is removed, then push pipe flange (5) is soldered on described flange positioning block (8), and is polished in cement layer (4) surface.
2. the preparation method of spheroidal graphite cast iron push pipe according to claim 1, is characterized in that described removable body die is combined by the parting (6) that two, left and right is identical.
3. the preparation method of spheroidal graphite cast iron push pipe according to claim 1, is characterized in that described flange positioning block (8) arranges 4 to 36 according to the large I of ductile iron pipe (1) socket caliber.
4. the preparation method of spheroidal graphite cast iron push pipe according to claim 1, it is characterized in that described body die is carried out be sealed into: sealing flange (10) is set in the bottom of body die, and is provided with felt collar (11) on sealing flange (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310434425.9A CN103486349B (en) | 2013-09-23 | 2013-09-23 | The preparation method of spheroidal graphite cast iron push pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310434425.9A CN103486349B (en) | 2013-09-23 | 2013-09-23 | The preparation method of spheroidal graphite cast iron push pipe |
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| Publication Number | Publication Date |
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| CN103486349A CN103486349A (en) | 2014-01-01 |
| CN103486349B true CN103486349B (en) | 2015-10-28 |
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| CN201310434425.9A Active CN103486349B (en) | 2013-09-23 | 2013-09-23 | The preparation method of spheroidal graphite cast iron push pipe |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565535A (en) * | 2014-12-24 | 2015-04-29 | 安阳钢铁股份有限公司 | Nodular cast iron pipe jacking pipe and manufacturing method thereof |
| CN110005871B (en) * | 2019-04-25 | 2021-06-25 | 芜湖新兴铸管有限责任公司 | Welding structure and welding method for pipe jacking rib plate and flange |
| CN112792979B (en) * | 2020-12-30 | 2022-03-04 | 新兴铸管股份有限公司 | Pipe jacking pouring die |
| CN116753360B (en) * | 2023-08-11 | 2023-10-20 | 江苏日升电力机械有限公司 | Connecting device for top pipe of spheroidal graphite cast iron pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5097871A (en) * | 1989-02-10 | 1992-03-24 | Kurimoto, Ltd. | Pipe for pipe jacking |
| KR20070014224A (en) * | 2007-01-12 | 2007-01-31 | 정태화 | Resin-lined cast iron pipe(s) and manufacturing method therefor |
| CN2872032Y (en) * | 2005-12-31 | 2007-02-21 | 陕西竞业玻璃钢有限公司 | Glass fibre reinforced plastic sanding top tube |
| CN202302361U (en) * | 2011-11-03 | 2012-07-04 | 崇州市岷江塑胶有限公司铸管分公司 | Cement mortar ceramic inner liner composite cast iron pipe |
| CN102620064A (en) * | 2012-03-28 | 2012-08-01 | 湖南振辉管业有限公司 | Full steel framework enhanced plug type composite pipe and manufacture technology thereof |
| CN102777706A (en) * | 2012-08-10 | 2012-11-14 | 新兴铸管股份有限公司 | Encased concrete nodular cast iron pipe |
-
2013
- 2013-09-23 CN CN201310434425.9A patent/CN103486349B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5097871A (en) * | 1989-02-10 | 1992-03-24 | Kurimoto, Ltd. | Pipe for pipe jacking |
| CN2872032Y (en) * | 2005-12-31 | 2007-02-21 | 陕西竞业玻璃钢有限公司 | Glass fibre reinforced plastic sanding top tube |
| KR20070014224A (en) * | 2007-01-12 | 2007-01-31 | 정태화 | Resin-lined cast iron pipe(s) and manufacturing method therefor |
| CN202302361U (en) * | 2011-11-03 | 2012-07-04 | 崇州市岷江塑胶有限公司铸管分公司 | Cement mortar ceramic inner liner composite cast iron pipe |
| CN102620064A (en) * | 2012-03-28 | 2012-08-01 | 湖南振辉管业有限公司 | Full steel framework enhanced plug type composite pipe and manufacture technology thereof |
| CN102777706A (en) * | 2012-08-10 | 2012-11-14 | 新兴铸管股份有限公司 | Encased concrete nodular cast iron pipe |
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| CN103486349A (en) | 2014-01-01 |
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