CN201560532U - Large-diameter high-intensity prestress spiral rib steel wire for high-speed railway track - Google Patents
Large-diameter high-intensity prestress spiral rib steel wire for high-speed railway track Download PDFInfo
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- CN201560532U CN201560532U CN2009200977980U CN200920097798U CN201560532U CN 201560532 U CN201560532 U CN 201560532U CN 2009200977980 U CN2009200977980 U CN 2009200977980U CN 200920097798 U CN200920097798 U CN 200920097798U CN 201560532 U CN201560532 U CN 201560532U
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Abstract
The utility model relates to a large-diameter high-intensity prestress spiral rib steel wire for a high-speed railway track. The steel wire takes high-carbon steel disc bars for a steel wire and a steel strand with the prestress of phi 15.00mm-phi 16.00mm as raw materials; the nominal diameter of the steel wire is phi 11.00mm; the surface of the steel wire is provided with 3-6 continuous convex spiral ribs to rotate around a base circle of the steel wire; the height of single spiral rib h is larger than or equal to 0.35mm, the width of the rib b is equal to 2.80-3.30mm, and the lead of the spiral rib L is equal to 48-62mm; the diameter and the deviation of the outline of the steel wire is 11.46+/-0.10mm, the diameter and the deviation of the base circle of the steel wire is 10.75+/-0.05mm, and the straight vector height of the steel wire is less than or equal to 3mm/m; and the lead of the spiral rib is short, and the inclined angle of the spiral rib is small which generally be 33 degrees. Therefore, prestress spiral rib steel wire improves the bond stress with the concrete, improves the quality of a prestress concrete track slab, and prolongs the service life. The prestress spiral rib steel wire has high intensity and toughness and good mechanical property, and improves main indexes of elastic limit, elongation after rupture and modulus of elasticity, and the like.
Description
Technical field
The utility model relates to high speed railway fragments-free roadbed steel, particularly makes the prestressed concrete railway board prestressed spiral rib steel wire with large diameter and high strength of laying the high speed railway fragments-free roadbed.
Technical background
China Railway marches to modernization, quickens to transform original route on the one hand, accelerates to build the inter-city high-speed rail Line for Passenger Transportation on the one hand.According to latest news, the china railway mileage will reach 110,000 km in 3 years from now on, and wherein the high-speed railway Line for Passenger Transportation about train speed 350km/h arrives 1.3 ten thousand km.High train running speed like this, at first orbit construction will be innovated, to guarantee the steady safe operation of bullet train.Build high-speed railway Germany and Japanese experience early according to the world, the prestressed concrete railway board that high speed railway track all adopts no tiny fragments of stone, coal, etc. roadbed and roadbed paving to use, its track plate muscle of being advocated all adopts large-size high-tensile degree prestressing force heat tempering bar.And present domestic this series products that still do not have.Adopt this product of import to improve the manufacturing cost of used for high-speed railway prestressed concrete railway board.
Summary of the invention
Main purpose of the present utility model is to overcome the deficiency of the large-size high-tensile degree prestressing force heat tempering bar of external employing, provide a kind of be used to make lay the prestressed spiral rib steel wire with large diameter and high strength of high speed railway fragments-free roadbed with prestressed concrete railway board.
The technical scheme that its technical problem that solves the utility model adopts is: it comprises steel wire and the Steel Wire Surface spiral ribs of projection continuously, it is characterized in that: adopting the nominal diameter of prestressed spiral rib steel wire is Φ 11.00mm, its surface has 3～6 spiral ribs of projection continuously, article 3～6, the spiral ribs of projection is mutually 120 °～60 ° at the place, cross section of helix rib steel wire, and this projection spiral ribs is rotated around the basic circle steel wire.
The utility model can also adopt following technical measures:
The raw material that described prestressed spiral rib steel wire adopts is Φ 15.00mm～Φ 16.00mm compressor wire, steel strand high-carbon steel wire rod;
Described prestressed spiral rib steel wire outline diameter and deviation are 11.46 ± 0.10mm;
The base circle diameter (BCD) of described prestressed spiral rib steel wire and deviation are 10.76 ± 0.05mm;
High h 〉=the 0.35mm of single rib of described prestressed spiral rib steel wire, rib width b is 2.80mm～3.30mm, spiral ribs helical pitch L is 48.00mm～62.00mm;
The stretching property of described prestressed spiral rib steel wire finished product is maximum natural rise≤3.00mm/m.
Advantage and the good effect that the utlity model has are: nominal diameter is big, the spiral ribs helical pitch is short comparatively speaking, and spiral ribs inclination angle little (being 33 °), thereby increased prestressed spiral rib steel wire and concrete bond stress, improve the quality of prestressed concrete railway board, prolonged application life; Has very high intensity and toughness, the mechanical performance index height; And leading indicators such as elastic limit, elongation after fracture and modulus of elasticity have been increased.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is Fig. 1 section structure schematic diagram.
Among Fig. 1, Fig. 2: 1. helix rib steel wire, 2. spiral ribs, 3. basic circle steel wire, 4. helix rib steel wire basic circle.
The specific embodiment
For further understanding summary of the invention of the present utility model and characteristics and effect, especially exemplified by following example, and conjunction with figs. is described in detail as follows, and sees also Fig. 1 and Fig. 2.
As shown in Figure 1 and Figure 2: it is that Φ 15.00mm～Φ 16.00mm compressor wire, steel strand high-carbon steel wire rod are raw material that the utility model adopts diameter, and the steel wire nominal diameter that manufactures a finished product is Φ 11.00mm.Preferred Steel Wire Surface has 4 and locates in basic circle steel wire 3 cross sections to be mutually 90 ° around the spiral ribs 2 of protruding 2,4 projectioies of spiral ribs of basic circle steel wire 3 rotations continuously; Spiral ribs 2 single rib height are h 〉=0.35mm, and rib width is b=2.80～3.30mm; Spiral ribs helical pitch L is preferably L=48.00～58.00mm, and nominal diameter Φ 11.00mm steel wire spiral ribs 2 helical pitches are short relatively; The spiral ribs inclination angle is little, is generally 33 °.Therefore, the steel wire of this appearance and size has increased prestressed spiral rib steel wire and grip of concrete, having improved with this utility model steel wire is the prestressed concrete railway board quality that main rib is made, prolonged the application life of track plate, played key effect guaranteeing that the high-speed railway train fast and safely moves.
Described helix rib steel wire 1, the employing diameter is that compressor wire, the steel strand high-carbon steel wire rod of Φ 15.00～Φ 16.00mm is raw material, through the continuous drawing deformation of several time, again through the drawing of spiral ribs moulding form, stabilized then processing output finished product helix rib steel wire.Its finished product helix rib steel wire 1 outline diameter and deviation are Φ 11.45 ± Φ 0.10mm, and helix rib steel wire basic circle 4 diameters and deviation are Φ 10.76 ± Φ 0.05mm.The process stabilization processes has improved the stretching property of helix rib steel wire, its maximum natural rise≤3.00mm/m.Through continuous drawing deformation and stabilization processes, improve the mechanical property of helix rib steel wire 1, tensile strength R
mBe 1570Mpa～1670Mpa, elastic limit R
P0.01〉=1200Mpa, regulation ratio extension strength R
P0.1〉=1420Mpa, elongation after fracture A (L.=100mm) 〉=6.00%, maximum, force percentage of total elongation A
Gt(L.=200mm) 〉=3.50%, the contraction percentage of area 〉=40%, elastic feel quantity E are (205 ± 10) Gpa, 1000 hours stress relaxation rate≤2.00%.
Its advantage is: its nominal diameter (Φ 11.00mm) is shorter relatively for the spiral ribs helical pitch, so increased helix rib steel wire and concrete bond area, spiral ribs inclination angle again little (being 33 °), both have increased helix rib steel wire and concrete bond stress simultaneously, to improving the prestressed concrete railway board quality, the advancing the track plate has played key effect application life; Be out of shape intensity and the toughness that has improved this product by continuous cold drawing, mechanical property is good, and has increased leading indicators such as elastic limit, elongation after fracture, modulus of elasticity.
Above-described embodiment is described preferred implementation of the present utility model, is not that scope of the present utility model is limited.Under the prerequisite that does not break away from the utility model design principles, each distortion and improvement that those skilled in the art make the technical solution of the utility model all should fall into the protection category that the utility model claims are determined.
Claims (5)
1. high speed railway track prestressed spiral rib steel wire with large diameter and high strength, it comprises steel wire and the Steel Wire Surface spiral ribs of projection continuously, it is characterized in that: adopting the nominal diameter of prestressed spiral rib steel wire (1) is Φ 11.00mm, its surface has 3～6 spiral ribs (2) of projection continuously, article 3～6, the spiral ribs of projection (2) is mutually 120 °～60 ° at the place, cross section of helix rib steel wire (1), and this projection spiral ribs is rotated around basic circle steel wire (3).
2. high speed railway track prestressed spiral rib steel wire with large diameter and high strength according to claim 1 is characterized in that: the raw material of described prestressed spiral rib steel wire (1) is Φ 15.00mm～Φ 16.00mm compressor wire, steel strand high-carbon steel wire rod.
3. high speed railway track prestressed spiral rib steel wire with large diameter and high strength according to claim 1 is characterized in that: the high h 〉=0.35mm of the single rib of described spiral ribs (2), rib width b=2.80～3.30mm, spiral ribs helical pitch L=48～62mm.
4. high speed railway track prestressed spiral rib steel wire with large diameter and high strength according to claim 1 is characterized in that: described helix rib steel wire (1) outline diameter and deviation are 11.46 ± 0.10mm.
5. high speed railway track prestressed spiral rib steel wire with large diameter and high strength according to claim 1 is characterized in that: described steel wire base circle diameter (BCD) and deviation are 10.75 ± 0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200977980U CN201560532U (en) | 2009-07-17 | 2009-07-17 | Large-diameter high-intensity prestress spiral rib steel wire for high-speed railway track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200977980U CN201560532U (en) | 2009-07-17 | 2009-07-17 | Large-diameter high-intensity prestress spiral rib steel wire for high-speed railway track |
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| Publication Number | Publication Date |
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| CN201560532U true CN201560532U (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200977980U Expired - Lifetime CN201560532U (en) | 2009-07-17 | 2009-07-17 | Large-diameter high-intensity prestress spiral rib steel wire for high-speed railway track |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074961A (en) * | 2013-01-23 | 2013-05-01 | 天津冶金集团中兴盛达钢业有限公司 | 1*3 type surface deformation low-relaxation prestress steel strand |
| CN103104068A (en) * | 2012-12-07 | 2013-05-15 | 天津银龙预应力材料股份有限公司 | Super-large diameter high-strength prestressed steel bar with spiral ribs |
| CN111774425A (en) * | 2020-07-08 | 2020-10-16 | 北京铁科首钢轨道技术股份有限公司 | Small-diameter high-strength steel wire for prestressed concrete sleeper and manufacturing method thereof |
-
2009
- 2009-07-17 CN CN2009200977980U patent/CN201560532U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104068A (en) * | 2012-12-07 | 2013-05-15 | 天津银龙预应力材料股份有限公司 | Super-large diameter high-strength prestressed steel bar with spiral ribs |
| CN103074961A (en) * | 2013-01-23 | 2013-05-01 | 天津冶金集团中兴盛达钢业有限公司 | 1*3 type surface deformation low-relaxation prestress steel strand |
| CN111774425A (en) * | 2020-07-08 | 2020-10-16 | 北京铁科首钢轨道技术股份有限公司 | Small-diameter high-strength steel wire for prestressed concrete sleeper and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SILVERY DRAGON PRESTRESSED MATERIALS CO., LTD. TIA Free format text: FORMER NAME: SILVERY DRAGON PC STEEL PRODUCTS GROUP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 300400 Tianjin City Industrial Zone Beichen District Shuangjiang dual Road No. 62 Patentee after: Tianjin Silvery Dragon Prestressed Materials Co., Ltd. Address before: 300400 Tianjin City Industrial Zone Beichen District Shuangjiang dual Road No. 62 Patentee before: Silvery Dragon PC Steel Products Group Co., Ltd. Tianjin |
|
| ASS | Succession or assignment of patent right |
Owner name: BENXI YINLONG PRESTRESSING MATERIAL CO., LTD. Free format text: FORMER OWNER: TIANJIN SILVERY DRAGON PRESTRESSED MATERIALS CO., LTD. Effective date: 20131231 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300400 BEICHEN, TIANJIN TO: 117000 BENXI, LIAONING PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131231 Address after: 117000 Jin Village, Qiaotou town, Pingshan Town, Liaoning, Benxi Patentee after: BENXI SILVERY DRAGON PRESTRESSED MATERIALS CO., LTD. Address before: 300400 Tianjin City Industrial Zone Beichen District Shuangjiang dual Road No. 62 Patentee before: Tianjin Silvery Dragon Prestressed Materials Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20100825 |
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| CX01 | Expiry of patent term |