CN101890620A - Method for manufacturing steel anchor for carbon fiber composite core wire clamp - Google Patents
Method for manufacturing steel anchor for carbon fiber composite core wire clamp Download PDFInfo
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- CN101890620A CN101890620A CN 201010231850 CN201010231850A CN101890620A CN 101890620 A CN101890620 A CN 101890620A CN 201010231850 CN201010231850 CN 201010231850 CN 201010231850 A CN201010231850 A CN 201010231850A CN 101890620 A CN101890620 A CN 101890620A
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- steel anchor
- carbon fiber
- wire clamp
- core wire
- fiber composite
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Abstract
The invention discloses a method for manufacturing a steel anchor for a carbon fiber composite core wire clamp, which comprises the following steps of: A10, heating one end of a stainless steel round bar and then carrying out hot stamping to form the shape of a pull ring; A20, heating the pull ring again and carrying out hot extrusion to form a long circular groove of which the depth is 2/5 of the thickness of a flat sheet part; A30, performing hot extrusion molding to form a circular step part; A40, continuously stamping the long circular groove to form a long circular hole; A50, performing cold extrusion to form an R6 fillet; A60, performing cold extrusion to form a quadrangular part; and A70, finishing by using a lathe to form a threaded connection part, a plurality of circles of ring-shaped grooves and the excircle size of a steel anchor body. The steel anchor is processed by combining three modes, namely hot stamping, hot extrusion and cold extrusion, so that the steel anchor has a tighter metallographic structure and higher tensile strength and the quality of the steel anchor is effectively guaranteed.
Description
Technical field
The present invention relates to the UHV transmission electric armour clamp, be specifically related to be used for the steel anchor manufacture method of carbon fiber composite core wire clamp.
Background technology
Extra-high voltage is meant the electric pressure that exchanges more than 1000 kilovolts and direct current ± 800 kilovolt, and UHV transmission line has advantages such as transmission line capability is big, transmission distance is long, loss is low, the corridor area of transmitting electricity is little.At present, China's electrical network is mainly by exchanging 500 kilovolts and direct current ± 500 kilovolt transmission line of electricity formation, if adopt UHV transmission line then can be with China's large capacity transmission capability improving several times, and transmission range is farther, significantly reduces power consumption and floor space on the way simultaneously.According to estimates, article 1, the ability to transmit electricity of 1150kV circuit can replace the ability to transmit electricity of 5 to 6 500kV circuits, under equal conveying capacity, 1150kV extra high voltage line corridor is about 1/4th of 500kV circuit corridor, the loss of 1150kV line power is about ten sixths of 500kV circuit, effectively reduce electric energy loss, can bring great economic and social benefit, promote the energy-saving and emission-reduction of the whole society, therefore, no matter from power network development, still from energy resources distribution occasion and national economy sustainable development demand, China all need develop the UHV transmission technology as early as possible.
Because the span of UHV transmission line and conveying electric weight are big, therefore the transmission of electricity electric armour clamp is had higher requirement.Transmission line hardware can be divided into purposes by its main performance: the wire clamp class, be connected the gold utensil class, the gold utensil class that continues, protection gold utensil class, backguy gold utensil class.Wherein the compression-type strain clamp is to use the most general a kind of transmission of electricity electric armour clamp, it is made up of aluminum pipe and steel anchor, the steel anchor is used for continuing and the steel core of anchoring steel-cored aluminium strand, put the aluminum pipe body and make metal produce plastic deformation, thereby wire clamp and lead (aerial earth wire) are pressed into an integral body with pressure.
Employed all kinds of shaped steel anchors in the existing carbon fiber composite core wire clamp, because the steel anchor is complex-shaped, therefore its manufacture method is, at first make blank with the stainless molten steel cast, use the machined into screw thread then, adopt this processing technology, the metallographic structure density of steel anchor is loose, and inside has the air aperture, so, when adopting the steel anchor of above-mentioned pouring molten steel technology manufacturing to be used on the extra-high voltage high-altitude frame transmission of electricity link, in the various adverse circumstances of the Nature, infinitely increase with the high voltage transmission line pulling force, the threaded joints and the draw ring of steel anchor are easy to generate fracture, thereby can not under adverse circumstances, guarantee normal transmission of electricity, produce accident potential.
Summary of the invention
In view of this, technical problem to be solved by this invention is that the steel anchor threaded joints that solves carbon fiber composite core wire clamp ruptures easily, can not guarantee normal transmission of electricity under adverse circumstances, and produces the problem of accident potential.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention provides a kind of steel anchor manufacture method that is used for carbon fiber composite core wire clamp, may further comprise the steps:
A10, under 700～800 ℃ with stainless steel round bar one end heating 5～8 minutes to soft condition, become flat sheet-like by diel with 60 tons of punch rams then;
A20, send to flat sheet-like part in the high temperature furnace once more, taking-up is placed on and partly squeezes out oblong groove with the 200T hydraulic press in this flat sheet-like in the hot-extrusion mold after 700～800 ℃ are heated 5～8 minutes down, and the degree of depth of this groove is 2/5 of a flat sheet-like segment thickness;
A30, the right-hand member of stainless steel round bar is put into high temperature furnace once more, 700～800 ℃ down heating takes out after 5～8 minutes and is placed in the vertical extrusion die hydraulic press extrusion modling step cutting pattern portion of usefulness 200T;
A40, the right-hand member of stainless steel round bar is put into high temperature furnace once more, 700～800 ℃ down heating take out after 5～8 minutes to be placed in the hot die tool and continue the oblong groove of punching press with the 60T punch press, process slotted hole;
A50, respectively cold-extruded extrudes the R6 fillet on the upper and lower end face of the inside and outside wall of draw ring;
A60, the other end of stainless steel round bar is placed cold extrusion die, squeeze out quadrangular portion with the 120T hydraulic press;
A70, go out the excircle dimension of threaded joints, multi-turn annular recess and steel anchor body with lathe fine finishining.
In said method, at first the right part of stainless steel round bar is gone out hemispherical head with machine tooling in the steps A 10.
In said method, oxide-film and burr are removed by sanding machine in steps A 50 backs.
In said method, after the steps A 70, burr are carried out mechanical polishing and carry out blasting treatment.
The present invention by drop stamping, hot extrusion and cold extrusion triplicity machined steel anchor, makes the metallographic structure of steel anchor itself tighter, and tensile strength is stronger, and the quality of steel anchor is effectively ensured.
Description of drawings
Fig. 1 is the steel anchor structure schematic diagram of carbon fiber composite core wire clamp;
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
Below the present invention is made detailed explanation.
Steel anchor structure such as Fig. 1 of being used for carbon fiber composite core wire clamp, shown in Figure 2, this steel ground tackle has the draw ring 1 of columned steel anchor body 7 and flat sheet-like, the right part of steel anchor body 7 is provided with step cutting pattern portion 2, draw ring 1 has slotted hole 8 and is arranged on the center of step cutting pattern portion 2 right sides, the left side that the left part of steel anchor body 7 is provided with quadrangular 4 and quadrangular 4 is provided with the threaded joints 5 that extends left, the center, left part of threaded joints 5 is provided with axial lead storage hole 6, and steel anchor body 7 outer circumference surfaces on quadrangular 4 right sides are provided with the multi-turn annular recess 3 of anti-skidding fixedly usefulness.
The manufacture method of the above-mentioned steel anchor that is used for carbon fiber composite core wire clamp is as follows:
One, earlier by one section stainless steel round bar of design size intercepting.
Two, the right part with this stainless steel round bar goes out hemispherical head with machine tooling.
Three, the hemispherical head that processes is sent in the high temperature furnace, heats 5～8 minutes down to soft condition at 700～800 ℃, becomes flat sheet-like by diel with 60 tons of punch rams then.
Four, send to this flat sheet-like part in the high temperature furnace once more, 700～800 ℃ down heating take out after 5～8 minutes and in hot-extrusion mold, partly squeeze out oblong groove in this flat sheet-like with the 200T hydraulic press, the degree of depth of this groove is 2/5 of a flat sheet-like segment thickness.
Five, the right-hand member of stainless steel round bar is put into high temperature furnace once more, heating is taken out after 5～8 minutes and is placed in the vertical extrusion die under 700～800 ℃, and the right part of stainless steel round bar erects, and uses the hydraulic press extrusion modling step cutting pattern portion 2 of 200T then.
Six, the right-hand member of stainless steel round bar is put into high temperature furnace once more, after 700～800 ℃ are heated 5～8 minutes down, take out to be placed in the hot die tool and continue the oblong groove of punching press, process slotted hole 8 with the 60T punch press.
Seven, have burr on the inwall owing to the slotted hole 8 after the punching press, and its surface can be attached with black oxide film after the calcining, therefore need by sanding machine removal oxide-film and burr.
After the polishing deburring, cold-extruded extrudes the R6 fillet respectively on the upper and lower end face of slotted hole 8 inside and outside walls.
Eight, the left end of stainless steel round bar is put in the cold extrusion die, squeezed out quadrangular portion 4 with the 120T hydraulic press.
Nine, carry out fine finishining with lathe, the cylindrical of processing step cutting pattern portion 2 is processed the surplus hole 6 of lead storage then earlier.
Ten, step cutting pattern portion 2 is clipped on the lathe scroll chuck, lead storage hole 6 withstands on to circle round and processes the excircle dimension of threaded joints 5, multi-turn annular recess 3 and steel anchor body 7 on top.
11, burr are carried out mechanical polishing.
12, adopt the method for blasting treatment to carry out the outward appearance processing at last.
Use the steel ground tackle of processing method manufacturing provided by the invention that following advantage is arranged: (1), selection are convenient, select 304 stainless steel specification poles of market high-quality for use.(2), by drop stamping, hot extrusion and cold extrusion triplicity processing, make the metallographic structure of steel anchor itself tighter, tensile strength is stronger, and the quality of steel anchor is effectively ensured.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, all falls within protection scope of the present invention.
Claims (4)
1. be used for the steel anchor manufacture method of carbon fiber composite core wire clamp, it is characterized in that may further comprise the steps:
A10, the end with stainless steel round bar under 700～800 ℃ heat 5～8 minutes to soft condition, become flat sheet-like by diel with 60 tons of punch rams then;
A20, send to flat sheet-like part in the high temperature furnace once more, taking-up is placed on and partly squeezes out oblong groove with the 200T hydraulic press in this flat sheet-like in the hot-extrusion mold after 700～800 ℃ are heated 5～8 minutes down, and the degree of depth of this groove is 2/5 of a flat sheet-like segment thickness;
A30, the right-hand member of stainless steel round bar is put into high temperature furnace once more, 700～800 ℃ down heating takes out after 5～8 minutes and is placed in the vertical extrusion die hydraulic press extrusion modling step cutting pattern portion of usefulness 200T;
A40, the right-hand member of stainless steel round bar is put into high temperature furnace once more, 700～800 ℃ down heating take out after 5～8 minutes to be placed in the hot die tool and continue the oblong groove of punching press with the 60T punch press, process slotted hole;
A50, respectively cold-extruded extrudes the R6 fillet on the upper and lower end face of the inside and outside wall of draw ring;
A60, the other end of stainless steel round bar is placed cold extrusion die, squeeze out quadrangular portion with the 120T hydraulic press;
A70, go out the excircle dimension of threaded joints, multi-turn annular recess and steel anchor body with lathe fine finishining.
2. the steel anchor manufacture method that is used for carbon fiber composite core wire clamp as claimed in claim 1 is characterized in that in the steps A 10 at first the right part of stainless steel round bar is gone out hemispherical head with machine tooling.
3. the steel anchor manufacture method that is used for carbon fiber composite core wire clamp as claimed in claim 1 is characterized in that steps A 50 backs are by sanding machine removal oxide-film and burr.
4. the steel anchor manufacture method that is used for carbon fiber composite core wire clamp as claimed in claim 1 is characterized in that after the steps A 70, and burr are carried out mechanical polishing and carry out blasting treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102318504A CN101890620B (en) | 2010-07-21 | 2010-07-21 | Method for manufacturing steel anchor for carbon fiber composite core wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102318504A CN101890620B (en) | 2010-07-21 | 2010-07-21 | Method for manufacturing steel anchor for carbon fiber composite core wire clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101890620A true CN101890620A (en) | 2010-11-24 |
| CN101890620B CN101890620B (en) | 2011-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102318504A Expired - Fee Related CN101890620B (en) | 2010-07-21 | 2010-07-21 | Method for manufacturing steel anchor for carbon fiber composite core wire clamp |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0881957A (en) * | 1994-07-14 | 1996-03-26 | Masami Kubota | Joint bar anchor and manufacture thereof |
| CN1775462A (en) * | 2005-12-06 | 2006-05-24 | 张有龙 | Method for manufacturing ground tackle for finish rolling of screw-thread steel by heat expansion |
| CN101293315A (en) * | 2007-04-25 | 2008-10-29 | 赵国大 | Hot extrusion production method for pre-stress anchor clipper |
-
2010
- 2010-07-21 CN CN2010102318504A patent/CN101890620B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0881957A (en) * | 1994-07-14 | 1996-03-26 | Masami Kubota | Joint bar anchor and manufacture thereof |
| CN1775462A (en) * | 2005-12-06 | 2006-05-24 | 张有龙 | Method for manufacturing ground tackle for finish rolling of screw-thread steel by heat expansion |
| CN101293315A (en) * | 2007-04-25 | 2008-10-29 | 赵国大 | Hot extrusion production method for pre-stress anchor clipper |
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| Publication number | Publication date |
|---|---|
| CN101890620B (en) | 2011-10-12 |
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Granted publication date: 20111012 Termination date: 20130721 |