CN103895113A - Corrugation incision steel wire and manufacturing method thereof - Google Patents
Corrugation incision steel wire and manufacturing method thereof Download PDFInfo
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- CN103895113A CN103895113A CN201210589181.7A CN201210589181A CN103895113A CN 103895113 A CN103895113 A CN 103895113A CN 201210589181 A CN201210589181 A CN 201210589181A CN 103895113 A CN103895113 A CN 103895113A
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Abstract
The invention discloses a corrugated incision steel wire. A corrugation structure is formed in two different planes after two times of rolling and deforming are carried out on the corrugation incision steel wire through a corrugation deformation device. The manufacturing method comprises the following steps of steel wire rod surface pre-processing, heat processing, intermediate drawing, electroplating, water tank wiredrawing, corrugation deforming and wire taking up. The stable corrugation structure is formed in the two different planes through corrugation incision steel, the carrying capability for grinding materials is high, the incision efficiency is high, the manufacturing method is simple, the grinding materials are not prone to disengaging in the incision process, and the product quality is stable.
Description
Technical field
The present invention relates to the cutting steel wire in photovoltaic or semiconductor applications, relate in particular to a kind of ripple cutting steel wire and manufacture method thereof.
Background technology
Cutting steel wire is a kind of senior copper-plated zinc steel wire, can be used for cutting the hard crisp product of various high accuracy, plays very crucial effect at present in solar silicon wafers cutting is produced.Cutting steel wire is as the carrier of cutting abrasive material, driving abrasive material to move around cuts silico briquette, steel wire is an important factor in order of cutting efficiency to the carrying capacity of abrasive material, the smooth cutting steel wire that past adopts, because Steel Wire Surface is smooth, to a little less than the carrying capacity of abrasive material, cutting efficiency is lower.Chinese patent CN201010606596.1 discloses a kind of preparation technology of special-shaped cutting steel wire, its step of preparation process comprises: (1), draw greatly: mechanical descaling, cleaning, painting boron, oven dry are carried out in ∮ 5.5-6.5mm steel wire wire rod surface, then be drawn to ∮ 2.80-3.25mm steel wire, maximum total draught is 74.1%; (2), middle silk heat treatment: the steel wire after drawing is carried out to grease removal, heat treatment, quenching, cooling, and then boron, oven dry are cleaned, are coated with to Steel Wire Surface; (3),, draw: by ∮ 2.80-3.25mm steel wire drawing, to ∮ 0.76-1.15mm steel wire, maximum total draught is 93.1%; (4), wet drawing: ∮ 0.76-1.15mm steel wire is drawn to ∮ 0.08-0.3mm steel wire again; (5), pressure rolling: steel wire is carried out to pressure roller and be rolled into cross section and be: polygon or ellipse; (6), electroplate/bonding: first Steel Wire Surface is cleaned, and then adopts plating mode or glue bonding mode to be fixed on steel wire outer surface SiC or diamond abrasive material particles, and last Steel Wire Surface is cleaned; (7), take-up, finished product.Its cutting steel wire of preparing is Elliptic Cylinder or gengon structure, has promoted the preparation method's of the special-shaped cutting steel wire with abrasive coating application prospect.Chinese patent CN201020644391.8 also discloses a kind of Wavy special-shaped cutting steel wire, the cross section of described cutting steel wire is circle or sub-circular, described cutting steel wire entirety is processed into level and smooth wavy texture, the cross-sectional diameter of described cutting steel wire is constant, described adjacent two peak-to-peak distances of ripple are 0.10-1.50mm, and the degree of depth of described trough is 0.01-0.05mm.At present, on wire drawing machine, produce ripple cutting steel wire and mostly install adjustable briquetting roller according to the shape of required ripple steel wire, wheel is provided with distortion roller tooth, crimp is carried out in the surface of steel wire, rectilinear steel wire is processed into the uniform bellows-shaped of distortion continuously, its weak point is the unsettled distortion of unidirectional stress that can only form to Steel Wire Surface a kind of single, Wavy special-shaped cutting steel wire to the carrying capacity of abrasive material a little less than, cutting efficiency is lower, the ovality of the envelope diameter of steel wire is larger, in the use of ripple cutting steel wire, can make the surface of the product of cutting produce many cutting vestiges, increase the workload of follow-up grinding and polishing, even make the product of cutting exceed set quota, affect product quality, also can make ripple cutting steel wire in use produce wearing and tearing inhomogeneous, cause steel wire stress to change and fracture of wire, affect production efficiency.Chinese patent CN201120345416.9 discloses a kind of corrugated cut steel wire former, comprise the installation base plate that can be fixed on wire drawing machine and be fixed on the installing plate on this installation base plate, main deformed component, be fixed on the guidance set that enters on installing plate, be fixed on the rear deformed component in main deformed component; Wherein, main deformed component, rear deformed component include the framework being made up of top connecting plate, bottom installing plate, both sides fixed head and location-plate, the fixed axis of bottom and fast pulley in this framework, the regulating block of framework internal upper part and be fixed on movable axis, the regulating wheel on this regulating block, regulating block is arranged on connecting plate by adjusting rod, and the end of movable axis is positioned at the longitudinal register groove of location-plate; Entering a guidance set is made up of guide wheel installing plate, guide wheel shaft and directive wheel.Can make steel wire through directive wheel, enter the space that in main deformed component, fast pulley and regulating wheel form and be rolled into unidirectional ripple, enter again the space that in rear deformed component, fast pulley and regulating wheel form and carry out secondary spreading, through regulating wheel outlet, process the required ripple steel wire that two kinds of different continuous uniforms of ripple size are out of shape that has.
Summary of the invention
The object of the invention is to overcome above the deficiencies in the prior art, provide a kind of simple in structure, strong to the carrying capacity of abrasive material, cutting efficiency is high, and in two Different Plane, has ripple cutting steel wire and the manufacture method thereof of stable bellows-shaped.
The present invention is achieved by the following technical solution:
Ripple cutting steel wire, the cross section of described cutting steel wire is circle or sub-circular, described cutting steel wire entirety is processed into level and smooth wavy texture, and the cross-sectional diameter of described cutting steel wire is constant, and described cutting steel wire forms wavy texture in two Different Plane.
Described wavy texture is S shape or Z-shaped ripple.
The wavelength of the wave molding that described described cutting steel wire forms in two planes is different and be not integral multiple.
The envelope diameter D of described cutting steel wire is 0.10-0.60mm.
The cross-sectional diameter d of described cutting steel wire is 0.08-0.40mm.
The manufacture method of described ripple cutting steel wire, comprise the following steps: the surface preparation of steel wire wire rod, heat treatment, in draw, plating, water tank wire drawing and take-up, between described water tank wire drawing and take-up step, also pass through ripple deforming step, described ripple deforming step is: drive steel wire High Rotation Speed walking on ripple anamorphoser by water tank drawbench take-up, steel wire forms wavy texture through ripple anamorphoser secondary spreading distortion in two Different Plane, forms ripple cutting steel wire wave molding.
In described water tank drawing step, the mould of 1-4 reciprocal passage use is Diamond dies.
Described steel wire is high-carbon brass-plated steel wire.
Owing to there is loss of strength after steel wire distortion, loss of strength is generally 5～10%, and the present invention adopts the Fracture Force that guarantees the final cutting steel wire wave molding obtaining compared with high carbon content and more high-tensile brass-plated steel wire.In the situation that cutting steel wire wave molding fixed length is grown, in water tank drawing step, a 1-4 reciprocal passage can guarantee with Diamond dies the precision of the smooth gauge of wire d of drawing.Wet drawing of the present invention and steel wire distortion are carried out continuously, adopt two pairs of briquetting rollers to make steel wire in two Different Plane, form S shape or Z-shaped ripple, and obtaining envelope diameter is the cutting steel wire wave molding of D.Briquetting roller in every pair of briquetting roller has axis parallel to each other, and the wavelength of ripple cutting steel wire can decide by diameter and the convex number of teeth of adjusting every pair of briquetting roller, and every pair of briquetting roller can be by regulating drafts to change the wave amplitude of wave molding.
The present invention compared with prior art has following beneficial effect:
Ripple cutting of steel of the present invention forms stable bellows-shaped structure in two Different Plane, carrying capacity to abrasive material is strong, cutting efficiency is high, and manufacture method is simple, in cutting process, abrasive material is not easy to peel off, constant product quality, the wavelength of ripple cutting steel wire can decide by diameter and the convex number of teeth of adjusting every pair of briquetting roller, every pair of briquetting roller can change by adjusting drafts the wave amplitude of wave molding, can meet the market demand of different-diameter, wavelength and wave amplitude cutting steel wire.
Accompanying drawing explanation
Fig. 1 is the ripple struction schematic diagram that embodiment of the present invention ripple cutting steel wire forms in x-y axial plane;
Fig. 2 is that embodiment of the present invention ripple cutting steel wire is take x axle as axle center to the ripple struction schematic diagram forming in the plane of 45 ° of z axle rotations;
Fig. 3 is embodiment of the present invention ripple cutting steel wire cross-sectional view;
Fig. 4 is the structural representation of the wire drawing of embodiment of the present invention ripple cutting steel wire water tank, ripple distortion and take-up step.
Sequence number in figure: 1, water tank wire drawing, 2, ripple distortion, 3, take-up, the actual diameter of d, ripple cutting steel wire, the envelope diameter of D, ripple cutting steel wire.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment mono-: shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of ripple cutting steel wire, the cross section of described cutting steel wire is circular, the cross-sectional diameter d of described cutting steel wire is 0.08-0.30mm, the cross-sectional diameter of described cutting steel wire is constant, described cutting steel wire entirety is processed into level and smooth wavy texture, described cutting steel wire forms wavy texture in two Different Plane, described wavy texture is S shape ripple, and the envelope diameter D of described cutting steel wire is 0.10-0.60mm.The manufacture method of described ripple cutting steel wire, comprises the following steps:
(1), pretreatment is drawn greatly: mechanical descaling, cleaning, painting boron, oven dry are carried out in ∮ 5.5,5.8,6.0,6.2,6.5mm steel wire wire rod surface, then be drawn to ∮ 2.80,2.90,3.00,3.10,3.25mm steel wire, maximum total draught is 74.1%.Described cleaning adopts pickling, water to rinse, 100,150,200,250, the hydrochloric acid solution of 280g/L 100,150,180,220, sulfuric acid solution or the concentration of 250g/L is described Acidwash solution adopts concentration to be::, described water rinses and adopts deionized water normal temperature to rinse; 200,250,300,350,380mol/L the borate concentration of described painting boron technique is:; 50,100,120,150,200 ℃ of the temperature of described stoving process, time: 0.1,0.5,1,1.5,2 minute; 350,450,550,650,750mm described drawing process adopts dead-beat Dry drawing machine, and drum diameter is:, carry out multi pass drawing.
(2), heat treatment: the steel wire after drawing is carried out to grease removal, heat treatment, quenching, cooling, and then boron, oven dry are cleaned, are coated with to Steel Wire Surface; 1,10,20,30, the borax soln of 45g/L described grease removal technique is to adopt concentration to be:, described Technology for Heating Processing adopts heating furnace, furnace temperature: 900,950,1000,1100,1150 ℃, time: 0.48,0.70,0.90,1.10,1.2 minute, described quenching technical temperature: 470,500,550,580,600 ℃, described process for cooling adopts water normal temperature cooling; Cleaning adopts pickling, water to rinse, 100,150,200,250, the hydrochloric acid solution of 280g/L 100,150,180,220, sulfuric acid solution or the concentration of 250g/L is described Acidwash solution adopts concentration to be::, described water rinses and adopts deionized water normal temperature to rinse; 50,100,150,200, the borax soln of 250mol/L described painting boron process using concentration is:; 50,100,120,150,200 ℃ of the temperature of described stoving process, time: 0.162,0.2,0.24,0.28,0.3 minute
(3),, draw: ∮ 2.80,2.90,3.00,3.10,3.25mm steel wire are adopted into formula Dry drawing machine, 300,400,500,550,600mm drum diameter is:, carry out multi pass drawing to ∮ 0.76,0.80,0.90,1.10,1.15mm steel wire, maximum total draught is 93.1%;
(4), heat treatment electroplates: the steel wire after drawing is carried out to grease removal, heat treatment, quenching, cooling, pickling, washing, alkali cleaning, washing, copper facing, washing, zinc-plated, washing, thermal diffusion, phosphatization, washing, oven dry; 1,10,20,30, the borax soln of 45g/L described grease removal technique is to adopt concentration to be:, described Technology for Heating Processing adopts heating furnace, furnace temperature: 850,900,950,1000,1100 ℃, time: 0.55,0.80,1.00,1.20,1.30 minute, described quenching technical temperature: 470,500,550,580,600 ℃, described process for cooling adopts water normal temperature cooling; 100,150,200,250, the hydrochloric acid solution of 280g/L cleaning adopts pickling, water to rinse, and described Acidwash solution adopts concentration to be:, described water rinses and adopts deionized water normal temperature to rinse; 100,150,200,250, the NaOH solution of 300g/L described soda-wash solution adopts concentration to be:, described water rinses and adopts deionized water normal temperature to rinse; Described copper facing adopts cupric pyrophosphate to electroplate, and copper facing weight is: 3.0,3.5,4.0,4.5,5.0, and described water rinses and adopts deionized water normal temperature to rinse; Described zinc-plated employing zinc sulfate is electroplated, and zinc-plated weight is: 1.5,1.8,2.1,2.4,2.7, and described water rinses and adopts deionized water normal temperature to rinse; Described thermal diffusion temperature is: 520,540,550,560,580 ℃; 15,20,30,40, the H of 50g/L described phosphating solution adopts concentration to be:
3pO
4solution; 100,120,150,180,200 ℃ of the temperature of described stoving process, time: 0.2,0.24,0.26,0.28,0.3 minute;
(5), water tank wire drawing 1: ∮ 0.76,0.80,0.90,1.10,1.15mm steel wire are adopted to water tank drawbench again, carry out multi pass drawing to 0.08mm, 0.10mm, 0.12mm, 0.20mm or 0.3mm steel wire;
(6) ripple distortion 2: drive steel wire High Rotation Speed walking on ripple anamorphoser by water tank drawbench take-up, steel wire forms wavy texture through ripple anamorphoser secondary spreading distortion in two Different Plane, forms ripple cutting steel wire wave molding;
(7), take-up 3, finished product.
Embodiment bis-: shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of ripple cutting steel wire, described steel wire is high-carbon brass-plated steel wire, the cross section of described cutting steel wire is circular, the cross-sectional diameter d of described cutting steel wire is 0.25mm, the cross-sectional diameter of described cutting steel wire is constant, described cutting steel wire entirety is processed into level and smooth wavy texture, described cutting steel wire forms wavy texture in two Different Plane, described wavy texture is S shape ripple, and the envelope diameter D of described cutting steel wire is 0.32mm.The manufacture method of described ripple cutting steel wire, comprise the following steps: the surface preparation of steel wire wire rod, heat treatment, in draw, plating, water tank wire drawing 1 and take-up 3 steps, between described water tank wire drawing 1 and take-up 3 steps, be also out of shape 2 steps through ripple, described ripple is out of shape 2 steps: drive steel wire High Rotation Speed walking on ripple anamorphoser by water tank drawbench take-up, steel wire forms wavy texture through ripple anamorphoser secondary spreading distortion in two Different Plane, forms ripple cutting steel wire wave molding; In described water tank drawing step, the mould of 1-4 reciprocal passage use is Diamond dies.
Ripple cutting steel wire process of the present invention: the high-carbon steel wire of heat treatment brass plating carries out unwrapping wire through I-beam wheel, carry out wire drawing at water tank drawbench and obtain the smooth steel wire that diameter is d, through ripple anamorphoser secondary, spreading is out of shape again, obtain cutting steel wire wave molding, and on Receiving wire wheel, carry out spooling take-up, be convenient to deposit and transport.
Embodiment is just for the ease of understanding technical scheme of the present invention; do not form limiting the scope of the invention; every interior any simple modification, equivalent variations and modification of perhaps according to technical spirit of the present invention, above scheme being done that does not depart from technical solution of the present invention, within all still belonging to protection domain of the present invention.
Claims (10)
1. ripple cutting steel wire, the cross section of described cutting steel wire is circle or sub-circular, described cutting steel wire entirety is processed into level and smooth wavy texture, the cross-sectional diameter of described cutting steel wire is constant, it is characterized in that: described cutting steel wire forms wavy texture in two Different Plane.
2. ripple cutting steel wire according to claim 1, is characterized in that: described wavy texture is S shape or Z-shaped ripple.
3. ripple cutting steel wire according to claim 1 and 2, is characterized in that: the wavelength of the wave molding that described described cutting steel wire forms in two planes is different and be not integral multiple.
4. ripple cutting steel wire according to claim 1 and 2, is characterized in that: the envelope diameter D of described cutting steel wire is 0.10-0.60mm.
5. ripple cutting steel wire according to claim 1 and 2, is characterized in that: the cross-sectional diameter d of described cutting steel wire is 0.08-0.40mm.
6. ripple cutting steel wire according to claim 3, is characterized in that: the cross-sectional diameter d of described cutting steel wire is 0.08-0.40mm.
7. ripple cutting steel wire according to claim 4, is characterized in that: the cross-sectional diameter d of described cutting steel wire is 0.08-0.40mm.
8. the manufacture method of ripple cutting steel wire according to claim 1 and 2, comprise the following steps: the surface preparation of steel wire wire rod, heat treatment, in draw, electroplate, water tank wire drawing (1) and take-up (3), it is characterized in that: described water tank wire drawing (1) and take-up (3) between step, be also out of shape (2) step through ripple, described ripple is out of shape (2) step: drive steel wire High Rotation Speed walking on ripple anamorphoser by water tank drawbench take-up, steel wire forms wavy texture through ripple anamorphoser secondary spreading distortion in two Different Plane, form ripple cutting steel wire wave molding.
9. the manufacture method of ripple cutting steel wire according to claim 8, is characterized in that: in described water tank drawing step, the mould of 1-4 reciprocal passage use is Diamond dies.
10. the manufacture method of ripple cutting steel wire according to claim 8, is characterized in that: described steel wire is high-carbon brass-plated steel wire.
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| CN201210589181.7A CN103895113A (en) | 2012-12-29 | 2012-12-29 | Corrugation incision steel wire and manufacturing method thereof |
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| CN201210589181.7A CN103895113A (en) | 2012-12-29 | 2012-12-29 | Corrugation incision steel wire and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382948A (en) * | 2015-10-29 | 2016-03-09 | 浙江农林大学 | Steel wire for cutting of solar silicon wafer and production method of steel wire |
| CN114570865A (en) * | 2022-05-05 | 2022-06-03 | 天津赛象科技股份有限公司 | Pre-bending radius automatic control adjusting device of bead ring processing machine tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002066678A (en) * | 2000-08-17 | 2002-03-05 | Aiwa Koki Kk | Manufacturing method of spiral corrugated wire |
| JP2007203393A (en) * | 2006-01-31 | 2007-08-16 | Nippon Seisen Co Ltd | Saw wire and its manufacturing method |
| CN101039771A (en) * | 2004-12-23 | 2007-09-19 | 贝唐堡阿赛勒股份公司 | Monofilament metal saw wire |
| CN102380915A (en) * | 2011-11-21 | 2012-03-21 | 镇江耐丝新型材料有限公司 | Metal wire for cutting and capable for twisting shapes, and manufacturing device and manufacturing method thereof |
| CN102652966A (en) * | 2012-04-24 | 2012-09-05 | 苏闽(张家港)新型金属材料科技有限公司 | Preparation process of cutting steel wire with tiny corrugations |
| CN203125754U (en) * | 2012-12-29 | 2013-08-14 | 江苏兴达钢帘线股份有限公司 | Corrugated sawing steel wire |
-
2012
- 2012-12-29 CN CN201210589181.7A patent/CN103895113A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002066678A (en) * | 2000-08-17 | 2002-03-05 | Aiwa Koki Kk | Manufacturing method of spiral corrugated wire |
| CN101039771A (en) * | 2004-12-23 | 2007-09-19 | 贝唐堡阿赛勒股份公司 | Monofilament metal saw wire |
| JP2007203393A (en) * | 2006-01-31 | 2007-08-16 | Nippon Seisen Co Ltd | Saw wire and its manufacturing method |
| CN102380915A (en) * | 2011-11-21 | 2012-03-21 | 镇江耐丝新型材料有限公司 | Metal wire for cutting and capable for twisting shapes, and manufacturing device and manufacturing method thereof |
| CN102652966A (en) * | 2012-04-24 | 2012-09-05 | 苏闽(张家港)新型金属材料科技有限公司 | Preparation process of cutting steel wire with tiny corrugations |
| CN203125754U (en) * | 2012-12-29 | 2013-08-14 | 江苏兴达钢帘线股份有限公司 | Corrugated sawing steel wire |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382948A (en) * | 2015-10-29 | 2016-03-09 | 浙江农林大学 | Steel wire for cutting of solar silicon wafer and production method of steel wire |
| CN114570865A (en) * | 2022-05-05 | 2022-06-03 | 天津赛象科技股份有限公司 | Pre-bending radius automatic control adjusting device of bead ring processing machine tool |
| CN114570865B (en) * | 2022-05-05 | 2022-07-12 | 天津赛象科技股份有限公司 | Pre-bending radius automatic control adjusting device of bead ring processing machine tool |
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Application publication date: 20140702 |