CN102825657B - One-step forming process for 18m conical poles - Google Patents
One-step forming process for 18m conical poles Download PDFInfo
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- CN102825657B CN102825657B CN201210295153.4A CN201210295153A CN102825657B CN 102825657 B CN102825657 B CN 102825657B CN 201210295153 A CN201210295153 A CN 201210295153A CN 102825657 B CN102825657 B CN 102825657B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 239000004567 concrete Substances 0.000 claims abstract description 8
- 210000003205 muscle Anatomy 0.000 claims description 57
- 238000004080 punching Methods 0.000 claims description 31
- 238000000703 high-speed centrifugation Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 210000002435 tendon Anatomy 0.000 claims description 7
- 238000005199 ultracentrifugation Methods 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 abstract 3
- 238000003466 welding Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
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Abstract
The invention discloses a one-step forming process for 18m conical poles. The one-step forming process includes steps of a), bundling: welding main reinforcement into a steel cage through steel hoops, winding external spiral reinforcement outside the steel hoops to bundle the steel cage and then filling the steel cage into a mould; b), mould closing: feeding required concrete prepared according to the design proportion into the mould after filling the bundled steel cage into the mould so as to complete assembling and mould closing; c), stretching: stretching the main reinforcement by prestressing force ranging from 1500kN to 1800kN; d), centrifuging: sending the steel mould into a centrifuge to perform variable-frequency centrifuging; d), steam curing: sending the steel mould which is centrifuged and filled with poles into a steam curing tank to be subject to steam curing; and f), mould stripping: detaching the steel mould filled with the poles after the step of steam curing so as to obtain finished poles. By the one-step forming process for the 18m conical poles, the 18m conical poles can be formed at one step, a process of connecting each two poles into one by flanges is omitted, the 18m conical poles formed at one step are convenient to mount and uniform in stress, and various quality problems caused in mounting of the flanges and butt jointing of each two poles are solved.
Description
Technical field
The present invention relates to electric force pole tower manufacture technology field, relate to a kind of 18 meters of one-time formed techniques of tapered electric pole in particular.
Background technology
From transformer station's transmission line of electricity out, the general employing steel tower of high pressure is as transmission of electricity support, steel tower is high as its structural strength of support, life-span is long, but, it needs to adopt a large amount of steel, cost of manufacture is higher, just be applicable to high pressure, backbone circuits, general is all adopt concurrent to substitute steel tower, application number is that the Chinese patent of CN200420116150.0 discloses name and is called that " root is with the partially prestressed concrete electric pole of steel ring and flange " this electric pole is a kind of straight tube shape electric pole, such electric pole generally can only accomplish several meters long, what commonly use so present is tapered electric pole, tapering is 1:75, length is generally 6 meters, 12 meters, but, in the use of reality, the length of the electric pole that grade elevated track adopts is generally 18 meters, the mode of present employing is exactly be connected and fixed by adpting flange by two electric poles of 6 meters and 12 meters, form 18 meters of electric poles to use, such mode, 18 meters of electric poles are made to need to process at twice, assemble again, the cost of 18 meters of electric poles is caused to increase, other two electric poles are connected by adpting flange, add a trouble point, place, electric pole after assembling is easily because junction discontinuity causes the phenomenon of falling bar.
Summary of the invention
The object of the invention is for the deficiencies in the prior art part, provide a kind of 18 meters of tapered electric pole one-shot forming techniques, it can make 18 meters of high tapered electric poles of structural strength.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows: 18 meters of tapered electric pole one-shot forming techniques, comprise the following steps:
A) tie up; After main muscle stirrup is welded into steel cage, coils after external spiral tendon ties up outward at stirrup, load mould;
B) matched moulds; Mould put into by steel cage after tying up, makes the concrete of needs, in mould, assemble matched moulds after feeding according to the proportioning of design;
C) stretch; Prestressing force stretching is carried out to main muscle, tensile stress 1500-1800 thousand Ns;
D) centrifugal; Punching block is sent into centrifuge, carries out frequency conversion centrifugal;
E) steam-cured; The punching block that electric pole is housed after centrifugal is delivered to steam-cured pond to carry out steam-cured;
F) demoulding; The punching block that electric pole is housed after steam-cured is dismantled, obtains electric pole finished product.
As preferably, in described step a), described main muscle is 9-18 root, between adjacent two main muscle, be provided with auxiliary muscle, and the length of described auxiliary muscle is 2/3 of described main muscle.
As preferably, described stirrup arranges one at interval of 20 centimetres.
As preferably, in described step d), first low-speed centrifugal, carries out centrifugal with the rotating speed of 300-350 rev/min, then medium-speed centrifuge, carries out centrifugal, then high speed centrifugation with the rotating speed of 360-500 rev/min, carries out centrifugal with the rotating speed of 510-600 rev/min.
As preferably, in described step d), the time of described low-speed centrifugal is 1-2 minute, and the time of described medium-speed centrifuge is 1-2 minute, and the described ultracentrifugal time is 1-2 minute.
As preferably, in described step d), the rotating speed of described low-speed centrifugal is 310-340 rev/min, and the rotating speed of described medium-speed centrifuge is 380-450 rev/min, and described ultracentrifugal rotating speed is 510-560 rev/min.
As preferably, in described step d), the rotating speed of described low-speed centrifugal is 330-340 rev/min, and the rotating speed of described medium-speed centrifuge is 430-440 rev/min, and described ultracentrifugal rotating speed is 550-560 rev/min.
As preferably, in described step e), punching block first 55-60 DEG C steam-cured 1 hour, then 85-90 DEG C of steam-cured 1-2 hour, then steam-cured 2 hours of constant temperature 90 DEG C, is finally down to normal temperature.
As preferably, in described step d), first low-speed centrifugal, centrifugal 1.5 minutes are carried out with the rotating speed of 330-350 rev/min, medium-speed centrifuge again, centrifugal 1.5 minutes are carried out with the rotating speed of 360-380 rev/min, then high speed centrifugation, centrifugal 1.5 minutes are carried out with the rotating speed of 510-520 rev/min, medium-speed centrifuge again after high speed centrifugation, centrifugal 3.5 minutes are carried out with the rotating speed of 370 revs/min, then ultracentrifugation is carried out, 3 minutes centrifugal is carried out with the rotating speed of 900 revs/min, finally carry out low-speed centrifugal, centrifugal 1.0 minutes are carried out with the rotating speed of 330-350 rev/min, in described step e), punching block elder generation 55-60 DEG C is steam-cured 1 hour, and then 85-90 DEG C of steam-cured 1-2 hour, then steam-cured 2 hours of constant temperature 90 DEG C, is finally down to normal temperature.
Different from the centrifugation of routine, first Low-Medium-High-middling speed-ultrahigh speed-the low-speed centrifugal of centrifugation of the present invention, 18 meters of tapered electric poles that such mode is made, structural strength is high, especially the tapered electric pole in 190mm slightly footpath, 230mm slightly footpath, it is when the inspection load code name that ftractures is L, and the highest moment improves 70%, 75% than national standard.
As preferably, in described step d), first low-speed centrifugal, centrifugal 1.5 minutes are carried out with the rotating speed of 340 revs/min, medium-speed centrifuge carries out centrifugal 1.5 minutes with the rotating speed of 370 revs/min again, then high speed centrifugation, centrifugal 1.5 minutes are carried out with the rotating speed of 515 revs/min, medium-speed centrifuge again after high speed centrifugation, carry out centrifugal 3.5 minutes with the rotating speed of 370 revs/min, then carry out ultracentrifugation, carry out 3 minutes centrifugal with the rotating speed of 900 revs/min, finally carry out low-speed centrifugal, carry out centrifugal 1.0 minutes with the rotating speed of 340 revs/min; In described step e), punching block first 56 DEG C steam-cured 1 hour, then 86 DEG C steam-cured 2 hours, then steam-cured 2 hours of constant temperature 90 DEG C, is finally down to normal temperature.
Beneficial effect of the present invention is:
1) 18 meters of electric pole moulding process of the present invention, one-shot forming, centre does not need by Flange joint, easy for installation, uniform force, also solve simultaneously mounting flange, dock time there are various quality problems;
2) the 18 meters of electric poles adopting one-shot forming technique to manufacture, cost is low, low price, can save abutted flange 700-800 unit/material cost only;
3) the 18 meters of electric poles adopting present invention process to manufacture, structural strength is high.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is process chart of the present invention.
Detailed description of the invention
The following stated is only preferred embodiment of the present invention, not limits scope of the present invention.
Embodiment 1, is shown in accompanying drawing 1, and 18 meters of tapered electric pole one-shot forming techniques, comprise the following steps:
A) tie up; After main muscle stirrup is welded into steel cage, coils after external spiral tendon ties up outward at stirrup, load mould, main muscle is 9-18 root, between adjacent two main muscle, be provided with auxiliary muscle, and auxiliary muscle welds with stirrup together with main muscle, form steel cage, the length of auxiliary muscle is 2/3 of main muscle; And stirrup arranges one at interval of 20 centimetres,
B) matched moulds; Mould put into by steel cage after tying up, after making the concrete of needs, in mould, assembles matched moulds after feeding according to the proportioning of design;
C) stretch; Prestressing force stretching is carried out to main muscle, tensile stress 1500-1800 thousand Ns;
D) centrifugal; Punching block is sent into centrifuge, carry out frequency conversion centrifugal, first low-speed centrifugal, carry out centrifugal with the rotating speed of 300-350 rev/min, the time is 1-2 m/min, medium-speed centrifuge again, carry out centrifugal with the rotating speed of 360-500 rev/min, the time is 1-2 minute, then high speed centrifugation, carry out centrifugal with 510-600 rev/min of rotating speed, the time is 1-2 minute;
E) steam-cured; The punching block that electric pole is housed after centrifugal is delivered to steam-cured pond to carry out steam-cured, punching block first 55-60 DEG C steam-cured 1 hour, then 85-90 DEG C of steam-cured 1-2 hour, then steam-cured 2 hours of constant temperature 90 DEG C, is finally down to normal temperature;
F) demoulding; The punching block that electric pole is housed after steam-cured is dismantled, obtains electric pole finished product.
Embodiment 2; 18 meters of tapered electric pole one-shot forming techniques, comprise the following steps:
A) tie up; After main muscle stirrup is welded into steel cage, coils after external spiral tendon ties up outward at stirrup, load mould, main muscle is 9-18 root, between adjacent two main muscle, be provided with auxiliary muscle, and auxiliary muscle welds with stirrup together with main muscle, form steel cage, the length of auxiliary muscle is 2/3 of main muscle; And stirrup arranges one at interval of 20 centimetres,
B) matched moulds; Mould put into by steel cage after tying up, after then making the concrete of needs according to the proportioning of design, in mould, assembles matched moulds after feeding;
C) stretch; Prestressing force stretching is carried out to main muscle, tensile stress 1500-1800 thousand Ns;
D) centrifugal; Punching block is sent into centrifuge, carry out frequency conversion centrifugal, first low-speed centrifugal, carry out centrifugal with the rotating speed of 310-340 rev/min, the time is 1-2 minute, then medium-speed centrifuge carries out centrifugal with the rotating speed of 380-450 rev/min, time is 1-2 minute, then high speed centrifugation, carries out centrifugal with 510-560 rev/min, and the time is 1-2 minute;
E) steam-cured; The punching block that electric pole is housed after centrifugal is delivered to steam-cured pond to carry out steam-cured, and punching block is first steam-cured 1 hour at 55-60 DEG C, then steam-cured 1-2 hour at 85-90 DEG C, and then steam-cured 2 hours of constant temperature 90 DEG C, is finally down to normal temperature;
F) demoulding; The punching block that electric pole is housed after steam-cured is dismantled, obtains electric pole finished product.
Embodiment 3; 18 meters of tapered electric pole one-shot forming techniques, comprise the following steps:
A) tie up; After main muscle stirrup is welded into steel cage, coil after external spiral tendon ties up outward at stirrup, load mould, main muscle is 9-18 root, between adjacent two main muscle, be provided with auxiliary muscle, and the length of auxiliary muscle is 2/3 of main muscle; And stirrup arranges one at interval of 20 centimetres,
B) matched moulds; Mould put into by steel cage after tying up, after then making the concrete of needs according to the proportioning of design, in mould, assembles matched moulds after feeding;
C) stretch; Prestressing force stretching is carried out to main muscle, tensile stress 1500-1800 thousand Ns;
D) centrifugal; Punching block is sent into centrifuge, carry out frequency conversion centrifugal, centrifugal 1.5 minutes are carried out with the rotating speed of 330-350 rev/min, medium-speed centrifuge carries out centrifugal 1.5 minutes with the rotating speed of 360-380 rev/min again, then high speed centrifugation, centrifugal 1.5 minutes are carried out with 510-520 rev/min of rotating speed, medium-speed centrifuge again after high speed centrifugation, centrifugal 3.5 minutes are carried out with the rotating speed of 370 revs/min, then ultracentrifugation is carried out, carry out 3 minutes centrifugal with the rotating speed of 900 revs/min, finally carry out low-speed centrifugal, carry out centrifugal 1.0 minutes with the rotating speed of 330-350 rev/min;
E) steam-cured; The punching block that electric pole is housed after centrifugal is delivered to steam-cured pond to carry out steam-cured, punching block first 55-60 DEG C steam-cured 1 hour, then at 90 DEG C steam-cured 2 hours, then steam-cured 2 hours of constant temperature 90 DEG C, was finally down to normal temperature;
F) demoulding; The punching block that electric pole is housed after steam-cured is dismantled, obtains electric pole finished product.
Embodiment 4; 18 meters of tapered electric pole one-shot forming techniques, comprise the following steps:
A) tie up; After main muscle stirrup is welded into steel cage, coils after external spiral tendon ties up outward at stirrup, load mould, main muscle is 9-18 root, between adjacent two main muscle, be provided with auxiliary muscle, and auxiliary muscle welds with stirrup together with main muscle, form steel cage, the length of auxiliary muscle is 2/3 of main muscle; And stirrup arranges one at interval of 20 centimetres,
B) matched moulds; Mould put into by steel cage after tying up, after then making the concrete of needs according to the proportioning of design, in mould, assembles matched moulds after feeding;
C) stretch; Prestressing force stretching is carried out to main muscle, tensile stress 1500-1800 thousand Ns;
D) centrifugal; Punching block is sent into centrifuge, carry out frequency conversion centrifugal, first low-speed centrifugal, carry out centrifugal with the rotating speed of 330-340 rev/min, the time is 1-2 minute, then medium-speed centrifuge carries out centrifugal with the rotating speed of 430-440 rev/min, time is 1-2 minute, then high speed centrifugation, carries out centrifugal with 550-560 rev/min of rotating speed, and the time is 1-2 minute;
E) steam-cured; The punching block that electric pole is housed after centrifugal is delivered to steam-cured pond to carry out steam-cured, punching block first 55-60 DEG C steam-cured 1 hour, then 85-90 DEG C of steam-cured 1-2 hour, then steam-cured 2 hours of constant temperature 90 DEG C, is finally down to normal temperature;
F) demoulding; The punching block that electric pole is housed after steam-cured is dismantled, obtains electric pole finished product.
Through test, 18 meters of tapered electric poles that present embodiment is made, structural strength is high, especially the tapered electric pole in 190mm slightly footpath, 230mm slightly footpath, and it is when the inspection load code name that ftractures is L, and the highest moment improves 70%, 75% than national standard.
Embodiment 5; 18 meters of tapered electric pole one-shot forming techniques, comprise the following steps:
A) tie up; After main muscle stirrup is welded into steel cage, coils after external spiral tendon ties up outward at stirrup, load mould, main muscle is 9-18 root, between adjacent two main muscle, be provided with auxiliary muscle, and auxiliary muscle welds with stirrup together with main muscle, form steel cage, the length of auxiliary muscle is 2/3 of main muscle; And stirrup arranges one at interval of 20 centimetres,
B) matched moulds; Mould put into by steel cage after tying up, after making the concrete of needs, in mould, assembles matched moulds after feeding according to the proportioning of design;
C) stretch; Prestressing force stretching is carried out to main muscle, tensile stress 1500-1800 thousand Ns;
D) centrifugal; Punching block is sent into centrifuge, carry out frequency conversion centrifugal, first low-speed centrifugal, centrifugal 1.5 minutes are carried out with the rotating speed of 340 revs/min, medium-speed centrifuge carries out centrifugal 1.5 minutes with the rotating speed of 370 revs/min again, then high speed centrifugation, centrifugal 1.5 minutes with 515 revs/min, medium-speed centrifuge again after high speed centrifugation, carry out centrifugal 3.5 minutes with the rotating speed of 370 revs/min, then carry out ultracentrifugation, carry out 3 minutes centrifugal with the rotating speed of 900 revs/min, finally carry out low-speed centrifugal, carry out centrifugal 1.0 minutes with the rotating speed of 340 revs/min;
E) steam-cured; The punching block that electric pole is housed after centrifugal is delivered to steam-cured pond to carry out steam-cured, punching block first 56 DEG C steam-cured 1 hour, then 86 DEG C steam-cured 2 hours, then steam-cured 2 hours of constant temperature 90 DEG C, is finally down to normal temperature;
F) demoulding; The punching block that electric pole is housed after steam-cured is dismantled, obtains electric pole finished product.
Through test, 18 meters of tapered electric poles that present embodiment is made, structural strength is high, especially the tapered electric pole in 190mm tip footpath, 230mm tip footpath, and it is when the inspection load code name that ftractures is L, and the highest moment improves 75%, 78% than national standard.
More than illustrate it is only explanation of the invention, those of ordinary skill in the art's can completely is made to implement this programme, but be not limitation of the present invention, those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this description, and these are all not creative amendments.As long as but be all subject to the protection of Patent Law in right of the present invention.
Claims (4)
1.18 meters of tapered electric pole one-shot forming techniques, is characterized in that comprising the following steps:
A) tie up; After main muscle stirrup is welded into steel cage, coils after external spiral tendon ties up outward at stirrup, load mould;
B) matched moulds; Mould put into by steel cage after tying up, makes the concrete of needs, in mould, assemble matched moulds after feeding according to the proportioning of design;
C) stretch; Prestressing force stretching is carried out to main muscle, tensile stress 1500-1800 thousand Ns;
D) centrifugal; Punching block is sent into centrifuge, carries out frequency conversion centrifugal;
E) steam-cured; The punching block that electric pole is housed after centrifugal is delivered to steam-cured pond to carry out steam-cured;
F) demoulding; The punching block that electric pole is housed after steam-cured is dismantled, obtains electric pole finished product;
In described step d), first low-speed centrifugal, centrifugal 1.5 minutes are carried out with the rotating speed of 330-350 rev/min, medium-speed centrifuge again, centrifugal 1.5 minutes are carried out with the rotating speed of 360-380 rev/min, then high speed centrifugation, centrifugal 1.5 minutes are carried out with the rotating speed of 510-520 rev/min, medium-speed centrifuge again after high speed centrifugation, carry out centrifugal 3.5 minutes with the rotating speed of 370 revs/min, then carry out ultracentrifugation, carry out 3 minutes centrifugal with the rotating speed of 900 revs/min, finally carry out low-speed centrifugal, carry out centrifugal 1.0 minutes with the rotating speed of 330-350 rev/min; In described step e), punching block elder generation 55-60 DEG C is steam-cured 1 hour, and then 85-90 DEG C of steam-cured 1-2 hour, then steam-cured 2 hours of constant temperature 90 DEG C, is finally down to normal temperature.
2. 18 meters of tapered electric pole one-shot forming techniques according to claim 1, is characterized in that: in described step a), and described main muscle is 9-18 root, between adjacent two main muscle, be provided with auxiliary muscle, and the length of described auxiliary muscle is 2/3 of described main muscle.
3. 18 meters of tapered electric pole one-shot forming techniques according to claim 2, is characterized in that: described stirrup arranges one at interval of 20 centimetres.
4. 18 meters of tapered electric pole one-shot forming techniques according to claim 1, it is characterized in that: in described step d), first low-speed centrifugal, centrifugal 1.5 minutes are carried out with the rotating speed of 340 revs/min, medium-speed centrifuge carries out centrifugal 1.5 minutes with the rotating speed of 370 revs/min again, then high speed centrifugation, centrifugal 1.5 minutes are carried out with the rotating speed of 515 revs/min, medium-speed centrifuge again after high speed centrifugation, centrifugal 3.5 minutes are carried out with the rotating speed of 370 revs/min, then ultracentrifugation is carried out, 3 minutes centrifugal is carried out with the rotating speed of 900 revs/min, finally carry out low-speed centrifugal, centrifugal 1.0 minutes are carried out with the rotating speed of 340 revs/min, in described step e), punching block first 56 DEG C steam-cured 1 hour, then 86 DEG C steam-cured 2 hours, then steam-cured 2 hours of constant temperature 90 DEG C, is finally down to normal temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210295153.4A CN102825657B (en) | 2012-08-20 | 2012-08-20 | One-step forming process for 18m conical poles |
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| CN201210295153.4A CN102825657B (en) | 2012-08-20 | 2012-08-20 | One-step forming process for 18m conical poles |
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| CN102825657B true CN102825657B (en) | 2015-04-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104260197B (en) * | 2014-09-22 | 2018-01-16 | 浙江飞英电力器材有限公司 | Steel mould for electric pole |
| CN104942986B (en) * | 2015-06-26 | 2017-05-10 | 四川华构住宅工业有限公司 | Electric pole protection layer cushion block forming device and method and electric-pole centrifugal forming machine |
| CN105965686B (en) * | 2016-06-24 | 2019-09-20 | 广西北海精一电力器材有限责任公司 | A kind of electric wire lever production technology |
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|---|---|---|---|---|
| CN1133771A (en) * | 1995-10-13 | 1996-10-23 | 广州羊城管桩有限公司 | Technique for mfg. prestressed high-strength concrete pipe pile by blending grinding fine building sand |
| CN2701991Y (en) * | 2004-12-03 | 2005-05-25 | 无锡恒畅铁路轨枕有限公司 | Partially prestressed concrete pole with steel ring and flange on root |
| CN2736474Y (en) * | 2004-10-22 | 2005-10-26 | 中铁八局集团成都桥梁工厂 | High-performance concrete isodiametric electric pole for Qinghai-Tibet line |
| CN101029540A (en) * | 2007-03-09 | 2007-09-05 | 罗定市水泥制品有限公司 | Prestressed concrete electrical pole and its production |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4103109B2 (en) * | 2002-10-17 | 2008-06-18 | 三谷セキサン株式会社 | Reinforcing bar knitting method for concrete pole and concrete pole |
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2012
- 2012-08-20 CN CN201210295153.4A patent/CN102825657B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1133771A (en) * | 1995-10-13 | 1996-10-23 | 广州羊城管桩有限公司 | Technique for mfg. prestressed high-strength concrete pipe pile by blending grinding fine building sand |
| CN2736474Y (en) * | 2004-10-22 | 2005-10-26 | 中铁八局集团成都桥梁工厂 | High-performance concrete isodiametric electric pole for Qinghai-Tibet line |
| CN2701991Y (en) * | 2004-12-03 | 2005-05-25 | 无锡恒畅铁路轨枕有限公司 | Partially prestressed concrete pole with steel ring and flange on root |
| CN101029540A (en) * | 2007-03-09 | 2007-09-05 | 罗定市水泥制品有限公司 | Prestressed concrete electrical pole and its production |
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Address after: 313000 Zhejiang city of Huzhou province Wuxing Donglin town industrial zones of Zhejiang Feijian Power Equipment Co Ltd Patentee after: ZHEJIANG FEIYING ELECTRIC POWER EQUIPMENT CO.,LTD. Address before: 313000 Zhejiang city of Huzhou province Wuxing Donglin town industrial zones of Zhejiang Feijian Power Equipment Co Ltd Patentee before: ZHEJIANG FEIJIAN ELECTRIC POWER EQUIPMENT Co.,Ltd. |
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Denomination of invention: One time Forming Process of 18m Conical Pole Effective date of registration: 20221214 Granted publication date: 20150401 Pledgee: Donglin sub branch of Huzhou Wuxing Rural Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG FEIYING ELECTRIC POWER EQUIPMENT CO.,LTD. Registration number: Y2022980027346 |
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Date of cancellation: 20240102 Granted publication date: 20150401 Pledgee: Donglin sub branch of Huzhou Wuxing Rural Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG FEIYING ELECTRIC POWER EQUIPMENT CO.,LTD. Registration number: Y2022980027346 |
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Effective date of registration: 20240410 Address after: Building 1-2, No. 2766, Baoge Road, Donglin Town, Wuxing District, Huzhou, Zhejiang Province 313000 Patentee after: Zhejiang Taihua Engineering Technology Co.,Ltd. Country or region after: China Address before: 313000 Zhejiang Feijian Power Equipment Co., Ltd., Industrial Functional Zone, Donglin Town, Wuxing District, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG FEIYING ELECTRIC POWER EQUIPMENT CO.,LTD. Country or region before: China |
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