CN102825657A - One-step forming process for 18m conical poles - Google Patents
One-step forming process for 18m conical poles Download PDFInfo
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- CN102825657A CN102825657A CN2012102951534A CN201210295153A CN102825657A CN 102825657 A CN102825657 A CN 102825657A CN 2012102951534 A CN2012102951534 A CN 2012102951534A CN 201210295153 A CN201210295153 A CN 201210295153A CN 102825657 A CN102825657 A CN 102825657A
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 239000004567 concrete Substances 0.000 claims abstract description 8
- 238000013461 design Methods 0.000 claims abstract description 8
- 210000003205 muscle Anatomy 0.000 claims description 57
- 238000004080 punching Methods 0.000 claims description 32
- 238000000703 high-speed centrifugation Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 7
- 210000002435 tendon Anatomy 0.000 claims description 7
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 abstract 3
- 238000003466 welding Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 3
- 229910052742 iron Inorganic materials 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
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 238000012545 processing Methods 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 the electric force pole tower manufacture technology field, relate to a kind of 18 meters one-time formed technologies of tapered electric pole in particular.
Background technology
From the transmission line of electricity that transformer station comes out, the general employing iron tower of high pressure is as the transmission of electricity support, and iron tower is high as its structural strength of support, the life-span is long, still; It need adopt a large amount of steel, and cost of manufacture just is applicable to high pressure, trunk circuit than higher; General all is to adopt concurrent to substitute iron tower, and application number is that the Chinese patent of CN200420116150.0 discloses name to be called " partially prestressed concrete electric pole that root has steel ring and flange " this electric pole be a kind of straight tubular electric pole, and such electric pole generally can only be accomplished several meters long; So commonly used is tapered electric pole now, tapering is 1:75, and length is generally 6 meters, 12 meters; But in the use of reality, the length of the electric pole that the grade elevated track adopts is generally 18 meters; The mode that adopts now is exactly 6 meters two electric poles with 12 meters to be connected through adpting flange be fixed up, and forms 18 meters electric poles and uses such mode; Make 18 meters electric pole need processing at twice, assemble again, cause the cost of 18 meters electric poles to increase; Other two electric poles connect through adpting flange, have increased trouble point, a place, and the electric pole after the assembling is easily because the junction discontinuity causes the phenomenon of falling the bar.
Summary of the invention
The objective of the invention is the weak point to prior art, a kind of 18 meters tapered electric pole one-shot forming techniques are provided, it can make 18 meters 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 following: 18 meters tapered electric pole one-shot forming techniques may further comprise the steps:
A) tie up; After main muscle is welded into the steel cage with stirrup, after outside stirrup, coiling external spiral tendon and tying up, the mould of packing into;
B) matched moulds; Steel cage after tying up is put into mould, processes the concrete that needs according to the proportioning of design, in mould, assembles matched moulds after the feeding;
C) stretch; Main muscle is carried out prestressing force stretch thousand Ns of tensile stress 1500-1800;
D) centrifugal; Punching block is sent into centrifuge, and it is centrifugal to carry out frequency conversion;
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 dismounting that electric pole is housed with after steam-cured obtains the electric pole finished product.
As preferably, in the said step a), said main muscle is the 9-18 root, between two adjacent main muscle, is provided with auxilliary muscle, and the length of said auxilliary muscle is 2/3 of said main muscle.
As preferably, the every interval of said stirrup is provided with one for 20 centimetres.
As preferably, in the said step d), first low-speed centrifugal carries out centrifugally with 300-350 rev/min rotating speed, and middling speed is centrifugal again, carries out centrifugally with 360-500 rev/min rotating speed, and high speed centrifugation carries out centrifugal with 510-600 rev/min rotating speed then.
As preferably, in the said step d), the time of said low-speed centrifugal is 1-2 minute, and the centrifugal time of said middling speed is 1-2 minute, and the said ultracentrifugal time is 1-2 minute.
As preferably, in the said step d), the rotating speed of said low-speed centrifugal is 310-340 rev/min, and said middling speed centrifugal rotation speed is 380-450 rev/min, and said ultracentrifugal rotating speed is 510-560 rev/min.
As preferably, in the said step d), the rotating speed of said low-speed centrifugal is 330-340 rev/min, and said middling speed centrifugal rotation speed is 430-440 rev/min, and said ultracentrifugal rotating speed is 550-560 rev/min.
As preferably, in the said step e), steam-cured 1 hour of 55-60 ℃ of punching block elder generation, then 85-90 ℃ steam-cured 1-2 hour, 90 ℃ of constant temperature are steam-cured 2 hours then, reduce to normal temperature at last.
As preferably, in the said step d), first low-speed centrifugal; Carried out centrifugal 1.5 minutes with 330-350 rev/min rotating speed, middling speed is centrifugal again, carries out centrifugal 1.5 minutes with 360-380 rev/min rotating speed; High speed centrifugation carried out centrifugal 1.5 minutes with 510-520 rev/min rotating speed then, and middling speed is centrifugal again behind high speed centrifugation; Carried out centrifugal 3.5 minutes with 370 rev/mins rotating speeds, it is centrifugal to carry out ultrahigh speed then, carries out 3 minutes centrifugal with 900 rev/mins rotating speeds; Carry out low-speed centrifugal at last, carried out centrifugal 1.0 minutes with 330-350 rev/min rotating speed; In the said step e), steam-cured 1 hour of 55-60 ℃ of punching block elder generation, then 85-90 ℃ steam-cured 1-2 hour, 90 ℃ of constant temperature are steam-cured 2 hours then, reduce to normal temperature at last.
Different with the centrifugation of routine; First low speed-the middling speed of centrifugation of the present invention-at a high speed-middling speed-ultrahigh speed-low-speed centrifugal; 18 meters tapered electric poles that such mode is made, structural strength height, especially 190mm be footpath, 230mm tapered electric pole slightly directly slightly; When it was L at cracking check load code name, the highest moment of flexure value had improved 70%, 75% than national standard.
As preferably, in the said step d), first low-speed centrifugal; Carried out centrifugal 1.5 minutes with 340 rev/mins rotating speeds, the centrifugal rotating speed with 370 rev/mins of middling speed carried out centrifugal 1.5 minutes again, then high speed centrifugation; Carried out centrifugal 1.5 minutes with 515 rev/mins rotating speeds, middling speed is centrifugal again behind high speed centrifugation, carries out centrifugal 3.5 minutes with 370 rev/mins rotating speeds; It is centrifugal to carry out ultrahigh speed then; Carry out 3 minutes centrifugal with 900 rev/mins rotating speeds, carry out low-speed centrifugal at last, carried out centrifugal 1.0 minutes with 340 rev/mins rotating speeds; In the said step e), punching block earlier 56 ℃ steam-cured 1 hour, then 86 ℃ steam-cured 2 hours, 90 ℃ of constant temperature are steam-cured 2 hours then, reduce to normal temperature at last.
Beneficial effect of the present invention is:
1) 18 meters electric pole moulding process of the present invention, one-shot forming, the centre need not connect through flange, and is easy for installation, stressed evenly, also solved simultaneously various quality problems taken place at mounting flange, when docking;
2) 18 meters electric poles that adopt one-shot forming technique to make, low, the low price of cost can be saved abutted flange 700-800 unit/material cost only;
3) 18 meters electric poles that adopt technology of the present invention to make, structural strength is high.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further explanation:
Fig. 1 is a process chart of the present invention.
The specific embodiment
The following stated is merely preferred embodiment of the present invention, is not scope of the present invention is limited.
Embodiment 1, sees 1,18 meter tapered electric pole one-shot forming technique of accompanying drawing, may further comprise the steps:
A) tie up; After main muscle is welded into the steel cage with stirrup, after outside stirrup, coiling external spiral tendon and tying up, the mould of packing into; Main muscle is the 9-18 root, between two adjacent main muscle, is provided with auxilliary muscle, and auxilliary muscle and main muscle weld with stirrup together; Form the steel cage, the length of auxilliary muscle is 2/3 of main muscle; And the every interval of stirrup is provided with one for 20 centimetres,
B) matched moulds; Steel cage after tying up is put into mould, process the concrete that needs according to the proportioning of design after, in mould, assemble matched moulds after the feeding;
C) stretch; Main muscle is carried out prestressing force stretch thousand Ns of tensile stress 1500-1800;
D) centrifugal; Punching block is sent into centrifuge, and it is centrifugal to carry out frequency conversion, first low-speed centrifugal; Carry out with 300-350 rev/min rotating speed centrifugal, the time be 1-2 rice/minute, middling speed is centrifugal again; Carry out centrifugally with 360-500 rev/min rotating speed, the time is 1-2 minute, then high speed centrifugation; Carry out centrifugally with 510-600 rev/min of rotating speed, the time is 1-2 minute;
E) steam-cured; With the punching block that electric pole is housed after centrifugal deliver to steam-cured pond carry out steam-cured, steam-cured 1 hour of 55-60 ℃ of punching block elder generation, then 85-90 ℃ steam-cured 1-2 hour, 90 ℃ of constant temperature are steam-cured 2 hours then, reduce to normal temperature at last;
F) demoulding; The punching block dismounting that electric pole is housed with after steam-cured obtains the electric pole finished product.
Embodiment 2; 18 meters tapered electric pole one-shot forming techniques may further comprise the steps:
A) tie up; After main muscle is welded into the steel cage with stirrup, after outside stirrup, coiling external spiral tendon and tying up, the mould of packing into; Main muscle is the 9-18 root, between two adjacent main muscle, is provided with auxilliary muscle, and auxilliary muscle and main muscle weld with stirrup together; Form the steel cage, the length of auxilliary muscle is 2/3 of main muscle; And the every interval of stirrup is provided with one for 20 centimetres,
B) matched moulds; Steel cage after tying up is put into mould, process the concrete that needs according to the proportioning of design then after, in mould, assemble matched moulds after the feeding;
C) stretch; Main muscle is carried out prestressing force stretch thousand Ns of tensile stress 1500-1800;
D) centrifugal; Punching block is sent into centrifuge, and it is centrifugal to carry out frequency conversion, first low-speed centrifugal; Carry out centrifugally with 310-340 rev/min rotating speed, the time is 1-2 minute, and the centrifugal rotating speed with 380-450 rev/min of middling speed carries out centrifugal again; Time is 1-2 minute; High speed centrifugation then carries out centrifugally with 510-560 rev/min, the time is 1-2 minute;
E) steam-cured; With the punching block that electric pole is housed after centrifugal deliver to steam-cured pond carry out steam-cured, punching block earlier 55-60 ℃ steam-cured 1 hour, then 85-90 ℃ steam-cured 1-2 hour down, 90 ℃ of constant temperature are steam-cured 2 hours then, reduce to normal temperature at last;
F) demoulding; The punching block dismounting that electric pole is housed with after steam-cured obtains the electric pole finished product.
Embodiment 3; 18 meters tapered electric pole one-shot forming techniques may further comprise the steps:
A) tie up; After main muscle was welded into the steel cage with stirrup, after outside stirrup, coiling external spiral tendon and tying up, the mould of packing into, main muscle were the 9-18 root, between two adjacent main muscle, are provided with auxilliary muscle, and the length of auxilliary muscle is 2/3 of main muscle; And the every interval of stirrup is provided with one for 20 centimetres,
B) matched moulds; Steel cage after tying up is put into mould, process the concrete that needs according to the proportioning of design then after, in mould, assemble matched moulds after the feeding;
C) stretch; Main muscle is carried out prestressing force stretch thousand Ns of tensile stress 1500-1800;
D) centrifugal; Punching block is sent into centrifuge, and it is centrifugal to carry out frequency conversion, carries out centrifugal 1.5 minutes with 330-350 rev/min rotating speed; The centrifugal rotating speed with 360-380 rev/min of middling speed carried out centrifugal 1.5 minutes again, and high speed centrifugation carried out centrifugal 1.5 minutes with 510-520 rev/min of rotating speed then; Middling speed is centrifugal again behind high speed centrifugation; Carried out centrifugal 3.5 minutes with 370 rev/mins rotating speeds, it is centrifugal to carry out ultrahigh speed then, carries out 3 minutes centrifugal with 900 rev/mins rotating speeds; Carry out low-speed centrifugal at last, carried out centrifugal 1.0 minutes with 330-350 rev/min rotating speed;
E) steam-cured; With the punching block that electric pole is housed after centrifugal deliver to steam-cured pond carry out steam-cured, steam-cured 1 hour of 55-60 ℃ of punching block elder generation, then 90 ℃ steam-cured 2 hours down, 90 ℃ of constant temperature are steam-cured 2 hours then, reduce to normal temperature at last;
F) demoulding; The punching block dismounting that electric pole is housed with after steam-cured obtains the electric pole finished product.
Embodiment 4; 18 meters tapered electric pole one-shot forming techniques may further comprise the steps:
A) tie up; After main muscle is welded into the steel cage with stirrup, after outside stirrup, coiling external spiral tendon and tying up, the mould of packing into; Main muscle is the 9-18 root, between two adjacent main muscle, is provided with auxilliary muscle, and auxilliary muscle and main muscle weld with stirrup together; Form the steel cage, the length of auxilliary muscle is 2/3 of main muscle; And the every interval of stirrup is provided with one for 20 centimetres,
B) matched moulds; Steel cage after tying up is put into mould, process the concrete that needs according to the proportioning of design then after, in mould, assemble matched moulds after the feeding;
C) stretch; Main muscle is carried out prestressing force stretch thousand Ns of tensile stress 1500-1800;
D) centrifugal; Punching block is sent into centrifuge, and it is centrifugal to carry out frequency conversion, first low-speed centrifugal; Carry out centrifugally with 330-340 rev/min rotating speed, the time is 1-2 minute, and the centrifugal rotating speed with 430-440 rev/min of middling speed carries out centrifugal again; Time is 1-2 minute; High speed centrifugation then carries out centrifugally with 550-560 rev/min of rotating speed, the time is 1-2 minute;
E) steam-cured; With the punching block that electric pole is housed after centrifugal deliver to steam-cured pond carry out steam-cured, steam-cured 1 hour of 55-60 ℃ of punching block elder generation, then 85-90 ℃ steam-cured 1-2 hour, 90 ℃ of constant temperature are steam-cured 2 hours then, reduce to normal temperature at last;
F) demoulding; The punching block dismounting that electric pole is housed with after steam-cured obtains the electric pole finished product.
Through test, 18 meters tapered electric poles that this embodiment is made, structural strength height, especially 190mm be footpath, 230mm tapered electric pole slightly directly slightly, and when it was L at cracking check load code name, the highest moment of flexure value had improved 70%, 75% than national standard.
Embodiment 5; 18 meters tapered electric pole one-shot forming techniques may further comprise the steps:
A) tie up; After main muscle is welded into the steel cage with stirrup, after outside stirrup, coiling external spiral tendon and tying up, the mould of packing into; Main muscle is the 9-18 root, between two adjacent main muscle, is provided with auxilliary muscle, and auxilliary muscle and main muscle weld with stirrup together; Form the steel cage, the length of auxilliary muscle is 2/3 of main muscle; And the every interval of stirrup is provided with one for 20 centimetres,
B) matched moulds; Steel cage after tying up is put into mould, process the concrete that needs according to the proportioning of design after, in mould, assemble matched moulds after the feeding;
C) stretch; Main muscle is carried out prestressing force stretch thousand Ns of tensile stress 1500-1800;
D) centrifugal; Punching block is sent into centrifuge, and it is centrifugal to carry out frequency conversion, first low-speed centrifugal; Carried out centrifugal 1.5 minutes with 340 rev/mins rotating speeds, the centrifugal rotating speed with 370 rev/mins of middling speed carried out centrifugal 1.5 minutes again, then high speed centrifugation; With 515 rev/mins centrifugal 1.5 minutes, middling speed is centrifugal again behind high speed centrifugation, carries out centrifugal 3.5 minutes with 370 rev/mins rotating speeds; It is centrifugal to carry out ultrahigh speed then; Carry out 3 minutes centrifugal with 900 rev/mins rotating speeds, carry out low-speed centrifugal at last, carried out centrifugal 1.0 minutes with 340 rev/mins rotating speeds;
E) steam-cured; With the punching block that electric pole is housed after centrifugal deliver to steam-cured pond carry out steam-cured, punching block earlier 56 ℃ steam-cured 1 hour, then 86 ℃ steam-cured 2 hours, 90 ℃ of constant temperature are steam-cured 2 hours then, reduce to normal temperature at last;
F) demoulding; The punching block dismounting that electric pole is housed with after steam-cured obtains the electric pole finished product.
Through test, 18 meters tapered electric poles that this embodiment is made, the tapered electric pole in structural strength height, especially 190mm tip footpath, 230mm tip footpath, when it was L at cracking check load code name, the highest moment of flexure value had improved 75%, 78% than national standard.
More than explanation only is to explanation of the present invention; Make enforcement this programme that those of ordinary skills can be complete; But be not limitation of the present invention; Those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, these all are not creative modifications.But as long as in claim scope of the present invention, all receive the protection of Patent Law.
Claims (10)
1.18 rice tapered electric pole one-shot forming technique is characterized in that may further comprise the steps:
A) tie up; After main muscle is welded into the steel cage with stirrup, after outside stirrup, coiling external spiral tendon and tying up, the mould of packing into;
B) matched moulds; Steel cage after tying up is put into mould, processes the concrete that needs according to the proportioning of design, in mould, assembles matched moulds after the feeding;
C) stretch; Main muscle is carried out prestressing force stretch thousand Ns of tensile stress 1500-1800;
D) centrifugal; Punching block is sent into centrifuge, and it is centrifugal to carry out frequency conversion;
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 dismounting that electric pole is housed with after steam-cured obtains the electric pole finished product.
2. 18 meters tapered electric pole one-shot forming techniques according to claim 1 is characterized in that: in the said step a), said main muscle is the 9-18 root, between two adjacent main muscle, is provided with auxilliary muscle, and the length of said auxilliary muscle is 2/3 of said main muscle.
3. 18 meters tapered electric pole one-shot forming techniques according to claim 2 is characterized in that: the every interval of said stirrup is provided with one for 20 centimetres.
4. according to claim 1 or 2 or 3 described 18 meters tapered electric pole one-shot forming techniques; It is characterized in that: in the said step d), first low-speed centrifugal carries out centrifugal with 300-350 rev/min rotating speed; Middling speed is centrifugal again; Carry out centrifugally with 360-500 rev/min rotating speed, high speed centrifugation carries out centrifugal with 510-600 rev/min rotating speed then.
5. 18 meters tapered electric pole one-shot forming techniques according to claim 4 is characterized in that: in the said step d), the time of said low-speed centrifugal is 1-2 minute, and the centrifugal time of said middling speed is 1-2 minute, and the said ultracentrifugal time is 1-2 minute.
6. 18 meters tapered electric pole one-shot forming techniques according to claim 5; It is characterized in that: in the said step d); The rotating speed of said low-speed centrifugal is 310-340 rev/min, and said middling speed centrifugal rotation speed is 380-450 rev/min, and said ultracentrifugal rotating speed is 510-560 rev/min.
7. 18 meters tapered electric pole one-shot forming techniques according to claim 6; It is characterized in that: in the said step d); The rotating speed of said low-speed centrifugal is 330-340 rev/min, and said middling speed centrifugal rotation speed is 430-440 rev/min, and said ultracentrifugal rotating speed is 550-560 rev/min.
8. 18 meters tapered electric pole one-shot forming techniques according to claim 5 is characterized in that: in the said step e), steam-cured 1 hour of 55-60 ℃ of punching block elder generation, then 85-90 ℃ steam-cured 1-2 hour, 90 ℃ of constant temperature are steam-cured 2 hours then, reduce to normal temperature at last.
9. 18 meters tapered electric pole one-shot forming techniques according to claim 1 is characterized in that: in the said step d), and first low-speed centrifugal; Carried out centrifugal 1.5 minutes with 330-350 rev/min rotating speed, middling speed is centrifugal again, carries out centrifugal 1.5 minutes with 360-380 rev/min rotating speed; High speed centrifugation carried out centrifugal 1.5 minutes with 510-520 rev/min rotating speed then, and middling speed is centrifugal again behind high speed centrifugation; Carried out centrifugal 3.5 minutes with 370 rev/mins rotating speeds, it is centrifugal to carry out ultrahigh speed then, carries out 3 minutes centrifugal with 900 rev/mins rotating speeds; Carry out low-speed centrifugal at last, carried out centrifugal 1.0 minutes with 330-350 rev/min rotating speed; In the said step e), steam-cured 1 hour of 55-60 ℃ of punching block elder generation, then 85-90 ℃ steam-cured 1-2 hour, 90 ℃ of constant temperature are steam-cured 2 hours then, reduce to normal temperature at last.
10. 18 meters tapered electric pole one-shot forming techniques according to claim 9 is characterized in that: in the said step d), and first low-speed centrifugal; Carried out centrifugal 1.5 minutes with 340 rev/mins rotating speeds, the centrifugal rotating speed with 370 rev/mins of middling speed carried out centrifugal 1.5 minutes again, then high speed centrifugation; Carried out centrifugal 1.5 minutes with 515 rev/mins rotating speeds, middling speed is centrifugal again behind high speed centrifugation, carries out centrifugal 3.5 minutes with 370 rev/mins rotating speeds; It is centrifugal to carry out ultrahigh speed then; Carry out 3 minutes centrifugal with 900 rev/mins rotating speeds, carry out low-speed centrifugal at last, carried out centrifugal 1.0 minutes with 340 rev/mins rotating speeds; In the said step e), punching block earlier 56 ℃ steam-cured 1 hour, then 86 ℃ steam-cured 2 hours, 90 ℃ of constant temperature are steam-cured 2 hours then, reduce to normal temperature at last.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104260197A (en) * | 2014-09-22 | 2015-01-07 | 浙江飞剑电力器材有限公司 | Steel mold for electric pole and electric pole forming method |
| CN104942986A (en) * | 2015-06-26 | 2015-09-30 | 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 |
| CN105965686A (en) * | 2016-06-24 | 2016-09-28 | 广西北海精电力器材有限责任公司 | Telegraph pole production process |
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| CN104260197A (en) * | 2014-09-22 | 2015-01-07 | 浙江飞剑电力器材有限公司 | Steel mold for electric pole and electric pole forming method |
| 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 |
| CN104942986A (en) * | 2015-06-26 | 2015-09-30 | 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 |
| 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 |
| CN105965686A (en) * | 2016-06-24 | 2016-09-28 | 广西北海精电力器材有限责任公司 | Telegraph pole production process |
| 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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|---|---|
| CN102825657B (en) | 2015-04-01 |
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