CN103343871A - Low-elasticity structure line and manufacturing method thereof - Google Patents
Low-elasticity structure line and manufacturing method thereof Download PDFInfo
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- CN103343871A CN103343871A CN2013102783622A CN201310278362A CN103343871A CN 103343871 A CN103343871 A CN 103343871A CN 2013102783622 A CN2013102783622 A CN 2013102783622A CN 201310278362 A CN201310278362 A CN 201310278362A CN 103343871 A CN103343871 A CN 103343871A
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Abstract
The invention discloses a low-elasticity structure line and a manufacturing method of the same. The low-elasticity structure line is a three-dimensional curved metal wire in a columnar space range, the length of the cross section of the columnar space is less than or equal to 2mm, and the elastic elongation percentage of the three-dimensional curved metal wire is less than 2%. The low-elasticity structure line overcomes the defects of existing straight metal wire structure line products, has higher adhesive force with rubber (or plastic) materials, meanwhile, low relaxation performance of a whole part is guaranteed, and the low-elasticity structure line has better capacity of carrying mortar grinding materials and capacity of resisting cutting tension fluctuation.
Description
Technical field
The present invention relates to a kind of hypoelasticity structure line and manufacture method thereof for rubber (or plastics) skeleton reinforcing material or hard material fretsaw for incision.
Background technique
At present, be used for rubber (or plastics) skeleton reinforcing material, or the wire of hard material fretsaw for incision mostly is straight line type steel wire (straight steel wire).If chemical adhesion is bad between straight steel wire and rubber (or plastics), steel wire is very easily loosening in rubber (or plastics), thereby loses the skeleton humidification.Online sawing is cut in the process, and straight steel wire carries the limited in one's ability of smear metal mortar, has limited cutting speed and has further improved.
Textured filament crooked on two planes increases than straight steel wire properties, but because the area of contour of unit length wire on cross section is still limited, performance improves also relatively limited.Though straight steel wire can be carried out the spirality distortion, make its characteristic with spring, elastic extension wiry is quite big, still can not satisfy the low requirement of extending of portioned product.
Summary of the invention
The object of the invention is to provide a kind of hypoelasticity structure line and manufacture method thereof, overcomes the deficiency of existing product, have than straight wire higher with Adhesion force rubber (or plastics) material, guarantee the underrelaxation of whole part (as rubber tape) simultaneously; Have the ability of better carrying the mortar abrasive material, and the ability of anti-cutting tension fluctuation.
For achieving the above object, technological scheme of the present invention is:
A kind of hypoelasticity structure line is the three-dimensional crooked wire in the cylindrical space scope, the cross-section lengths≤2mm of described cylindrical space, described three-dimensional crooked elastic extension rate wiry＜2%.
Wherein, be circular, ellipse or polygonal for the manufacture of the cross section wiry of described hypoelasticity structure line, preferably two ends are the rectangle of circular arc, this cross-section lengths＜2mm wiry, tensile strength＞2200MPa, elastic extension rate＜1.8%.
The shape of cross section of described cylindrical space is circle, ellipse or polygonal.
Described three-dimensional warp architecture is 4 quadrants of wire process cylindrical space cross section in a unit length preferably.
Hypoelasticity structure line of the present invention has three-dimensional warp architecture, but is not the bending on a plane or a plurality of plane, or helically bent.
The manufacture method of hypoelasticity structure line of the present invention comprises the steps:
1) wire former group by having at least two pairs of wire formers to form under less than the tension force of wire yield force Rp0.01, control wire amount of bow≤2.2mm, realize the three-dimensional bending of wire in the cylindrical space scope, and elastic extension rate wiry＜2.2% after the three-dimensional bending.
2) wire after the bending passes 5～21 of Straightener not at grade aligning wheels under the tension force less than wire yield force Rp0.2, and the aligning wheel diameter is 50～100 times of wire cross-section lengths size.The amount of being pressed into by regulating Straightener (amount of being pressed into 0.2～2.5mm) make wire in Straightener by the extruding of aligning wheel with reverse, with crooked control in having the cylindrical space scope of certain shape of cross section and cross-section lengths≤2mm wiry, make bending direction wiry irregular simultaneously, and by pushing and reverse the metal plastic deformation effect that causes, three-dimensional crooked elastic extension rate wiry is reduced to＜2%, finally obtain hypoelasticity structure line of the present invention.
Among the present invention, can utilize wire drawing die to draw out wire in advance before step 1), used wire drawing die pass can be circle, ellipse or polygonal, and cross section also can make by roll-in circular cross section wire for oval or polygonal wire.
Further, the former of wire described in the step 1) is the gear type deformation wheel.
Wire amount of bow and curvature of space path at first use the space analysis geometry designs in the step 1), and select former with spatial parameter unanimity according to the solid geometry parameter of design, in manufacture process, formed by two pairs of orthogonal gear type distortion wheels for the former group, be 0.18～1.35mm by adjusting the distance that cogs between circle-arc tooth top and the lower gear circle-arc tooth groove bottom that meshes in the every pair of gear type distortion wheels, adjust amount of bow≤2.2mm wiry.
The manufacture method of hypoelasticity structure line of the present invention can be finished when drawbench carries out wire drawing synchronously, also can carry out finishing in the independent retractable cable process at wire.
Beneficial effect of the present invention:
1. the present invention is processed into wire in the three-dimensional crooked wire in the cylindrical space scope with certain shape of cross section and size, wherein, length≤the 2mm of cylindrical space cross section, and elastic extension rate wiry＜2% after the three-dimensional bending, it is elastic extension rate＜2% of hypoelasticity structure line of the present invention, thereby when realizing it as rubber (or plastics) skeleton reinforcing material, have higher and Adhesion force rubber (or plastics) material than straight wire, hypoelasticity guarantees the underrelaxation of whole part (as rubber tape) simultaneously;
2. when hypoelasticity structure line of the present invention is applied to the hard material cutting, because it has three-dimensional warp architecture, so, have the ability of better carrying the mortar abrasive material; The present invention simultaneously has hypoelasticity, and this just makes it have the ability of good anti-cutting tension fluctuation;
3. the preferred three-dimensional warp architecture of the present invention is that wire is through 4 quadrants of cylindrical space cross section in a unit length, and namely the area of contour of the wire of curvature of space on the cylindrical space cross section maximizes.Such curvature of space structure makes the present invention have the best ability of carrying cutting mortar or anchoring particles of silicon carbide or anchoring rubber (or plastics) etc.
Description of drawings
Fig. 1 for the wire of the embodiment of the invention 1 through behind the former, entering Straightener before the projection intention on cylindrical space cross section (y-z face) in the unit length;
Fig. 2 for the wire of the embodiment of the invention 1 after through one group of former, entering Straightener before, be right after the perspective view on the inherent cylindrical space cross section of next unit length (y-z face) of Fig. 1;
Fig. 3 for mesh in the embodiment of the invention gear type distortion wheels cog between circle-arc tooth top and the lower gear circle-arc tooth groove bottom apart from schematic representation;
Fig. 4 is the spatial structure schematic representation of hypoelasticity structure line in the x-y-z space of the embodiment of the invention 1;
Fig. 5 is the perspective view of hypoelasticity structure line on the y-z plane of the embodiment of the invention 1;
Fig. 6 is the manufacturing process flow schematic representation of the embodiment of the invention.
Embodiment
Describe a kind of implementation methods of the present invention below in detail.Implementation methods of the present invention is that prerequisite is implemented with technological scheme of the present invention, and protection scope of the present invention is not limited only to following implementation methods.
Present embodiment is that the brass coating high-carbon steel wire in surface is processed, and the cross section of high-carbon steel wire is circular, diameter 0.11mm, and tensile strength 3600MPa, elastic extension rate 1.2%, synchronous processing is finished when water tank drawbench carries out wire drawing, as shown in Figure 6.
1) Coppered Steel Wire carry out at water tank drawbench 1 cold drawn, through being drawn into diameter 0.11mm, tensile strength 3600MPa, the straight steel wire 100 of elastic extension rate 0.6% behind the Finished die 2.
The drawing compressibility of Finished die 2 is 8%, and therefore, the tension force of straight steel wire 100 behind Finished die 2 of 0.11mm is 11N, less than the yield force Rp of high-carbon steel wire
0.01(17N).
2) straight steel wire 100 passes through the distortion gear 3 of two pairs of mutually perpendicular alloyed steel materials under 11N tension force, wherein, each gear diameter 40mm, first pair of gear has the circular arc type tooth of 32 teeth, second pair of gear has the circular arc type tooth of 38 teeth, can obtain the three-dimensional crooked steel wire 100 ' in the cylindrical space scope, its curvature of space structure as depicted in figs. 1 and 2.The distance A that cogs between 31 circle-arc teeth, 301 tops and lower gear 32 circular arc teeth groove 302 bottoms by the adjustment engagement is 0.21mm, as shown in Figure 3, with the maximum outside diameter of steel wire 100 ' curvature of space projection on the y-z face be the control of wire amount of bow at 0.15mm, and the elastic extension rate 1.2% wiry after the three-dimensional bending.
3) steel wire 100 ' with curvature of space structure that step 2) obtains twines 6 circles at the interior layer segment 5 of the draught wheel of drawbench, and obtaining enough tension force, and steel wire can not produce relatively on the draught wheel surface and slides.After twining 6 circles, crooked steel wire 100 ' enters Straightener 4.Straightener 4 is two rows aligning wheel form, 7 on last row's aligning wheel, 8 on following row's aligning wheel, aligning wheel diameter 9mm.The two rows aligning is taken turns each in two planes parallel to each other, two interplanar spacing 0.08mm; Steel wire 100 ' twines 6 circles through Straightener 4 backs again at the outer layer segment 6 of drawbench draught wheel, passes through wire-crossing wheel 7 then, enters into Take up unit, obtains structure line 100 ".
Because outer layer segment 6 diameters of draught wheel are bigger by 0.6% than interior layer segment 5 diameters, steel wire 100 ' has been produced the tension force of 20N, less than the yield force Rp of steel wire 100 '
0.2(33N).Crooked steel wire 100 ' is under 20N tension force, the amount of being pressed into by regulating Straightener is to 0.30mm, extruding and twisting action at Straightener 4, the crooked projection maximum outside diameter control 0.13mm on the y-z face with steel wire, the simultaneously irregular bending direction of steel wire, and with wire 100 " the control of elastic extension rate 0.4%.
Pass through above-mentioned steps, obtained finally that the uniform maximum outside diameter of projection is the Coppered Steel Wire structure line 100 of 0.13mm, curvature of space on the y-z face "; the shape of cross section of the cylindrical space of hypoelasticity structure line is circular; wire is through 4 quadrants of cylindrical space cross section in a unit length for three-dimensional warp architecture, and its spatial structure schematic representation in the x-y-z space and the perspective view on the y-z plane are respectively as Fig. 4, shown in Figure 5.The structure line 100 of present embodiment " the elastic extension rate be 0.4%, belong to hypoelasticity structure line.
The hypoelasticity structure line that the present invention processes is used for the heart yearn of resin bonded abrasive material scroll saw, compares with the resin bonded abrasive material scroll saw that uses straight steel wire manufacturing, and increased by 34% the working life of resin bonded abrasive material scroll saw, can be used as the solar silicon wafers fretsaw for incision.
Present embodiment is that the brass coating high-carbon steel wire in surface is processed, and the cross section of high-carbon steel wire is circular, diameter 1.15mm, tensile strength 2300MPa, elastic extension rate 1.7%.
(1) straight steel wire 100 passes through the distortion gear 3 of two pairs of mutually perpendicular alloyed steel materials under 319N tension force, wherein, each gear diameter 80mm, first pair of gear has the circular arc type tooth of 40 teeth, second pair of gear has the circular arc type tooth of 50 teeth, can obtain the three-dimensional crooked steel wire 100 ' in the cylindrical space scope.The distance A that cogs between 31 circle-arc teeth, 301 tops and lower gear 32 circular arc teeth groove 302 bottoms by the adjustment engagement is 1.33mm, with steel wire 100 ' curvature of space major axis of projection on the y-z face be the control of wire amount of bow at 2.17mm, and the elastic extension rate 2.1% wiry after the three-dimensional bending.
(2) steel wire 100 ' with curvature of space structure that step 2) obtains twines 9 circles at the interior layer segment 5 of the draught wheel of drawbench, and obtaining enough tension force, and steel wire can not produce relatively on the draught wheel surface and slides.After twining 9 circles, crooked steel wire 100 ' enters Straightener 4.Straightener 4 is two rows aligning wheel form, 10 on last row's aligning wheel, 11 on following row's aligning wheel, aligning wheel diameter 75mm.The two rows aligning is taken turns each in two planes parallel to each other, two interplanar spacing 0.31mm; Steel wire 100 ' twines 9 circles through Straightener 4 backs again at the outer layer segment 6 of drawbench draught wheel, passes through wire-crossing wheel 7 then, enters into Take up unit, obtains structure line 100 ".
Crooked steel wire 100 ' is under 319N tension force, the amount of being pressed into by regulating Straightener is to 2.40mm, extruding and twisting action at Straightener 4, with the major axis control 2.0mm of the crooked projection on the y-z face of steel wire, the simultaneously irregular bending direction of steel wire, and with wire 100 " elastic extension rate control 1.9%, the shape of cross section of its cylindrical space be oval, three-dimensional warp architecture wire in a unit length passes through 4 quadrants of cylindrical space cross section.This structure line can be used for the inner reinforcement metal material of rubber conveyer belt, can significantly improve conveyor belt load, and the excellent impact resistance energy is arranged.
Claims (10)
1. a hypoelasticity structure line is the three-dimensional crooked wire in the cylindrical space scope, the cross-section lengths≤2mm of described cylindrical space, described three-dimensional crooked elastic extension rate wiry＜2%.
2. hypoelasticity structure line as claimed in claim 1 is characterized in that, is circular, ellipse or polygonal for the manufacture of the cross section wiry of described hypoelasticity structure line.
3. hypoelasticity structure line as claimed in claim 2 is characterized in that, described cross section wiry is the rectangle that two ends are circular arc.
4. as claim 2 or 3 described hypoelasticity structure lines, it is characterized in that described cross-section lengths＜2mm wiry, tensile strength＞2200MPa, elastic extension rate＜1.8%.
5. hypoelasticity structure line as claimed in claim 1 is characterized in that, the cross section of described cylindrical space is circle, ellipse or polygonal.
6. hypoelasticity structure line as claimed in claim 1 is characterized in that, described three-dimensional warp architecture is 4 quadrants of wire process cylindrical space cross section in a unit length preferably.
7. as the manufacture method of each described hypoelasticity structure line of claim 1-6, comprise the steps:
1) wire is less than wire yield force Rp
0.01Tension force under former group by having at least the two pairs of wire formers to form, control wire amount of bow≤2.2mm, realize wire three-dimensional crooked in the cylindrical space scope, and actual flexion amount wiry need satisfy elastic extension rate wiry＜2.2% after the bending simultaneously;
2) wire after the bending is less than wire yield force Rp
0.2Tension force under pass 5～21 of Straightener not at grade aligning wheels, the aligning wheel diameter is 50～100 times of wire cross-section lengths, make wire in Straightener, be pushed and reverse by the aligning wheel by the amount of being pressed into of regulating Straightener, crooked control wiry had circle, in the cylindrical space scope of ellipse or polygonal shape of cross section and cross-section lengths≤2mm, make bending direction wiry irregular simultaneously, and by pushing and reverse the metal plastic deformation effect that causes, elastic extension rate wiry is reduced to＜2%, finally obtain hypoelasticity structure line, wherein, the amount of being pressed into of Straightener is 0.2～2.5mm.
8. the manufacture method of hypoelasticity structure line as claimed in claim 7 is characterized in that, the former of wire described in the step 1) is the gear type deformation wheel.
9. the manufacture method of hypoelasticity structure line as claimed in claim 7, it is characterized in that, the group of former described in the step 1) is made up of two pairs of orthogonal gear type distortion wheels, be 0.18～1.35mm by adjusting the distance that cogs between circle-arc tooth top and the lower gear circle-arc tooth groove bottom that meshes in the every pair of gear type distortion wheels, and then adjust amount of bow≤2.2mm wiry.
10. the manufacture method of hypoelasticity structure line as claimed in claim 7 is characterized in that, utilizes wire drawing die to draw out wire before step 1) in advance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310278362.2A CN103343871B (en) | 2013-07-02 | 2013-07-02 | A kind of low elasticity structure lines and manufacture method thereof |
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| CN201310278362.2A CN103343871B (en) | 2013-07-02 | 2013-07-02 | A kind of low elasticity structure lines and manufacture method thereof |
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| CN103343871B CN103343871B (en) | 2016-12-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107253294A (en) * | 2017-05-15 | 2017-10-17 | 南通综艺新材料有限公司 | A kind of new structure line slice process |
| DE102021121134A1 (en) | 2021-08-13 | 2023-02-16 | voestalpine Wire Rod Austria GmbH | Saw wire and method for its manufacture |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039771A (en) * | 2004-12-23 | 2007-09-19 | 贝唐堡阿赛勒股份公司 | Monofilament metal saw wire |
| CN102152215A (en) * | 2010-12-27 | 2011-08-17 | 长沙岱勒新材料科技有限公司 | Wire-cutting wire of structural electrodeposited abrasive material |
| CN102310489A (en) * | 2011-08-09 | 2012-01-11 | 镇江耐丝新型材料有限公司 | Cutting wire with composite structure, and manufacturing method and manufacturing equipment thereof |
| CN102528940A (en) * | 2010-11-22 | 2012-07-04 | 贝卡尔特公司 | A structured sawing wire |
| CN102962901A (en) * | 2012-11-13 | 2013-03-13 | 镇江耐丝新型材料有限公司 | Intermittent deformation cutting metal wire |
| WO2013053622A1 (en) * | 2011-10-09 | 2013-04-18 | Nv Bekaert Sa | Sawing wire |
| CN203384634U (en) * | 2013-07-02 | 2014-01-08 | 江苏宝钢精密钢丝有限公司 | Low elasticity structure line |
-
2013
- 2013-07-02 CN CN201310278362.2A patent/CN103343871B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039771A (en) * | 2004-12-23 | 2007-09-19 | 贝唐堡阿赛勒股份公司 | Monofilament metal saw wire |
| CN102528940A (en) * | 2010-11-22 | 2012-07-04 | 贝卡尔特公司 | A structured sawing wire |
| CN102152215A (en) * | 2010-12-27 | 2011-08-17 | 长沙岱勒新材料科技有限公司 | Wire-cutting wire of structural electrodeposited abrasive material |
| CN102310489A (en) * | 2011-08-09 | 2012-01-11 | 镇江耐丝新型材料有限公司 | Cutting wire with composite structure, and manufacturing method and manufacturing equipment thereof |
| WO2013053622A1 (en) * | 2011-10-09 | 2013-04-18 | Nv Bekaert Sa | Sawing wire |
| CN102962901A (en) * | 2012-11-13 | 2013-03-13 | 镇江耐丝新型材料有限公司 | Intermittent deformation cutting metal wire |
| CN203384634U (en) * | 2013-07-02 | 2014-01-08 | 江苏宝钢精密钢丝有限公司 | Low elasticity structure line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107253294A (en) * | 2017-05-15 | 2017-10-17 | 南通综艺新材料有限公司 | A kind of new structure line slice process |
| DE102021121134A1 (en) | 2021-08-13 | 2023-02-16 | voestalpine Wire Rod Austria GmbH | Saw wire and method for its manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103343871B (en) | 2016-12-28 |
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Effective date of registration: 20180518 Address after: 226001 999 Guangzhou Road, Haimen Economic and Technological Development Zone, Haimen, Jiangsu Patentee after: Jiangsu Bao Mei Sheng Precision steel wire Co.,Ltd. Address before: 226116 99 Jiujiang Road, Haimen port, Haimen, Nantong, Jiangsu Patentee before: JIANGSU BAOSTEEL FINE WIRE & CORD CO.,LTD. |
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Address after: Floor 1, B16, Fuhai Industrial Park, Weihui Road, Yangling Demonstration Zone, Xianyang City, Shaanxi Province Patentee after: Shaanxi baomeisheng precision steel wire Co.,Ltd. Address before: 226001 999 Guangzhou Road, Haimen Economic and Technological Development Zone, Haimen, Jiangsu Patentee before: Jiangsu Bao Mei Sheng Precision steel wire Co.,Ltd. |
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