CN101786111A - Device and method thereof for controlling width tolerance of molybdenum strip - Google Patents
Device and method thereof for controlling width tolerance of molybdenum strip Download PDFInfo
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- CN101786111A CN101786111A CN201010300401A CN201010300401A CN101786111A CN 101786111 A CN101786111 A CN 101786111A CN 201010300401 A CN201010300401 A CN 201010300401A CN 201010300401 A CN201010300401 A CN 201010300401A CN 101786111 A CN101786111 A CN 101786111A
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Abstract
The invention discloses a device for controlling the width tolerance of a molybdenum strip, which comprises a chassis, a pay-off stand, a first guide pulley, a cooling and lubricating assembly, a mould base, a second guide pulley and a take-up stand; the pay-off stand, the first guide pulley, the cooling and lubricating assembly, the mould base, the second guide pulley and the take-up stand are arranged on the chassis; a pay-off reel is assembled on the pay-off stand, a take-up reel is assembled on the take-up stand, and a calibrating mould with a calibrating strap with a rectangular cross section is assembled on the mould base. The invention also relates to a cold-drawing method for the device. The device and the technique step are adopted to recaliberate width of the normally rolled molybdenum strip in the diamond rectangular mould, so that the width precision of the molybdenum strip can be greatly increased, and the dimensional tolerance range is reduced to positive or negative 0.005mm.
Description
Technical field
The present invention relates to a kind of device of controlling molybdenum bandwidth tolerance, especially a kind of device of controlling ultra-thin, super narrow molybdenum bandwidth tolerance the invention still further relates to the cold drawn method of said apparatus.
Background technology
The microwave vacuum device is a kind of electronic device, and in the slow-wave structure of microwave vacuum device, its width range of high accuracy molybdenum band that is adopted is 0.2mm～1.0mm; Thickness range is 0.08mm～0.3mm.The width uniformity of molybdenum band is that the dimensional accuracy of width plays important effect to the performance of microwave vacuum device.The width dimensions tolerance must be controlled at ± 0.005mm in.
For a long time, the making of this molybdenum band all is to adopt following technology: the molybdenum filament with circular cross section is that raw material passes through the milling train spreading, molybdenum filament is subjected to the pressure effect of roll and is out of shape between the working roll of two rotations, be rolled into cross section and become " flat filament " of approximate rectangular (the cross section both sides are the circular arc of external drum and irregular), i.e. molybdenum band.The molybdenum band of producing like this, thickness degree tolerance also are easy to control, but its width is freely to extend when rolling, and are subjected to the operating accuracy influence of spreading equipment (milling train), and width control difficulty is big, and its width dimensions depends on following principal element:
1, the diameter uniformity of raw material molybdenum filament: the molybdenum bandwidth fluctuation that raw material molybdenum filament diameter variation can cause spreading to go out;
2, the precision of spreading equipment (milling train): the precision of milling train is embodied in the consistency of thickness that spreading goes out the molybdenum band, i.e. the margin of tolerance, and the rolling mill precision deficiency, it is excessive to cause the molybdenum tape thickness to change, and in the spreading distortion, the partial width that the molybdenum band is thick partially is just narrow partially; And the part molybdenum bandwidth that thickness approaches partially is just wider.Can know that from the operation principle of spreading equipment the molybdenum band that any high precision apparatus rolls out or other metal tapes all certainly exist the variation of thickness, so also certainly exist the fluctuation of width.
3, the variation of rolling mill practice: the constant degree of the front and back retractable cable tension force in the operation of rolling, the control of rolling temperature stability range affect the wide variety of molybdenum band too.Overtension or temperature are low excessively, can cause the molybdenum bandwidth narrow partially, and vice versa.
So, the stack of above-mentioned factor, the fluctuation that the width of molybdenum band has been brought.Only adopt above-mentioned technology, must be difficult to guarantee the width accuracy of molybdenum band.Precision control can only reach ± the 0.01mm scope in.
At present, also useful on the market carbide alloy or glomerocryst are made rectangular mold, and cold-drawn thickness is greater than 0.5mm, and width is the non-ferrous metal band of rectangle greater than other relative softer cross section such as 1.0mm copper or welding wire.But carbide alloy or glomerocryst mould when drawing the narrow strip of all very high molybdenum rectangle of intensity and hardness, are easy to cause the die wall wearing and tearing, cause the narrow strip dimensional accuracy of the rectangle of pulling out uniformity difference can't satisfy high-precision requirement.
Summary of the invention
The technical problem to be solved in the present invention provides the device of a control molybdenum bandwidth tolerance.
For solving the problems of the technologies described above, the present invention includes frame, be arranged in order on the described frame and be provided with pay off rack, first directive wheel, lubricated cooling package, mould bases, second directive wheel, take-up stand; Assemble draw drum on the described pay off rack, assemble take-up reel on the described take-up stand, assemble Correction Die on the described mould bases, the calibrating strap cross section of described Correction Die is a rectangle.
Described Correction Die is the diamond mould.
The width range of described rectangle calibrating strap is 0.2～1.0mm; Thickness range is 0.08～0.3mm.
Described lubricated cooling package comprises atomizer and oil pump and connecting line.
The present invention also provides a kind of cold drawn method of said apparatus, comprises the steps:
Being wound on the draw drum through the rolling molybdenum band band of a spreading, again draw drum is fixed in pay off rack, the width of described molybdenum band is than the big 0.010mm～0.030mm of width of Correction Die calibrating strap.
Molybdenum belt end on the draw drum is polished into narrow and thin tip, and the molybdenum band tip of polishing is passed rectangle endoporus, second directive wheel of first guide wheel, Correction Die successively, and after-combustion is on the take-up drum again; Take-up reel is installed on the motor shaft with bus cable device and reducing gear, and take-up speed is 5m/min to 30m/min; In the cold drawing process, mould is cooled off and lubricates with the mode of lubricating oil spray.
To adopt device of the present invention and processing step through the molybdenum band after conventional the rolling, in the diamond rectangular mould, width is proofreaied and correct once more, by the mould endoporus time, every width exceeds the part of hole width in the mould, under the extruding of mould endoporus and stretching action, produce distortion, obtain the measure-alike molybdenum band of final width dimensions and xenotype mold endoporus, can greatly improve the width accuracy of molybdenum band, dimensional tolerance range is controlled at ± 0.005mm in.
Description of drawings
The present invention will illustrate by embodiment and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is apparatus of the present invention structural representations;
Fig. 2 is the cross-sectional schematic of Correction Die shown in Figure 1;
Fig. 3 is the A-A generalized section of the Correction Die calibrating strap of Fig. 2.
The specific embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
Apparatus of the present invention as shown in Figure 1 comprise frame 4, are arranged in order on the described frame to be provided with pay off rack and draw drum 1, the first directive wheel 2, spray lubrication cooling device, mould bases 7, second directive wheel 8, take-up stand and take-up reel 9; Assembling Correction Die 6 on the mould bases, the structure of Correction Die is shown in Fig. 2,3, and endoporus calibrating strap 12 cross sections of Correction Die are rectangle.The mode that mould bases and Correction Die spray with lubricating oil is lubricated and cools off, and the lubricated cooling package of this lubricating oil spray is cooled off and lubricated by the circulated sprinkling lubricating and cooling that comprises atomizer 5 and oil pump 11 and respective line.
The rolling back of spreading width range (0.2～1.0) mm, the molybdenum band 3 of thickness range (0.08～0.3) mm is wound on the draw drum, again draw drum is fixed in pay off rack, for larger-size molybdenum band, pay off rack should apply certain backward pull (as torque motor), avoids molybdenum band on the draw drum to get loose and collapses.Molybdenum belt end on the draw drum becomes narrow and thin tip with file or grinder buffing, so that pass the endoporus 12 of Correction Die 6.The molybdenum band tip of polishing is passed rectangle endoporus 12, second directive wheel 8 of first directive wheel 2, mould 6 successively, and after-combustion is on take-up reel again, and take-up reel is fixed on the take-up stand.
To proofread and correct once more width through diamond rectangular mold of the present invention through the molybdenum band after once rolling, can greatly improve the width accuracy of molybdenum band, dimensional tolerance range is controlled at ± 0.005mm in, satisfied of the specification requirement of high-end microwave vacuum device to high accuracy molybdenum band.According to the specification difference of molybdenum band, select for use suitable linear velocity can carry out cold drawing and proofread and correct, realize the precision truing of molybdenum band cross section, eliminates rolling in unavoidable width fluctuation, the uniformity of raising molybdenum bandwidth.The molybdenum band of need correcting, its width should be bigger than the width of Correction Die pass, and for well, correcting value is excessive, not only causes the mould damage easily, also causes band excessive deformation even fracture easily in 0.010mm～0.030mm scope for its difference range.And correcting value is too small even it is correcting deformed not produce, and then is difficult to reach the correction purpose.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (6)
1. a device of controlling molybdenum bandwidth tolerance is characterized in that: comprise frame, be arranged in order on the described frame and be provided with pay off rack, first directive wheel, lubricated cooling package, mould bases, second directive wheel, take-up stand; Assemble draw drum on the described pay off rack, assemble take-up reel on the described take-up stand, assemble Correction Die on the described mould bases, the calibrating strap cross section of described Correction Die endoporus is a rectangle.
2. the device of control molybdenum bandwidth tolerance as claimed in claim 1 is characterized in that: described Correction Die is the diamond mould.
3. the device of control molybdenum bandwidth tolerance as claimed in claim 1 is characterized in that: the width of described rectangle calibrating strap is 0.2mm～1.0mm; Thickness is 0.08mm～0.3mm.
4. the device of control molybdenum bandwidth tolerance as claimed in claim 1 is characterized in that: described lubricated cooling package comprises atomizer and oil pump and connecting line.
5. cold drawn method that adopts each described device of claim 1-3 is characterized in that step is as follows:
Being wound on the draw drum through once rolling molybdenum band, again draw drum is fixed in pay off rack, the width of described molybdenum band is than the big 0.010mm～0.030mm of width of Correction Die calibrating strap;
Molybdenum belt end on the draw drum is polished into narrow and thin tip, and the molybdenum band tip of polishing is passed rectangle endoporus, second directive wheel of first guide wheel, cooling and lubricating parts, Correction Die successively, and after-combustion is on the take-up drum again; Take-up reel is installed on the motor shaft with reducing gear, and take-up speed is 5m/min to 30m/min; Adopt the mode of lubricating oil spray that mould is cooled off and lubricates in the cold drawing process.
6. cold drawn method as claimed in claim 5 is characterized in that, the lubricant medium of described lubricating component is 20# machine oil, butter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300401A CN101786111A (en) | 2010-01-18 | 2010-01-18 | Device and method thereof for controlling width tolerance of molybdenum strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300401A CN101786111A (en) | 2010-01-18 | 2010-01-18 | Device and method thereof for controlling width tolerance of molybdenum strip |
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| CN101786111A true CN101786111A (en) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010300401A Pending CN101786111A (en) | 2010-01-18 | 2010-01-18 | Device and method thereof for controlling width tolerance of molybdenum strip |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537496A (en) * | 2013-10-23 | 2014-01-29 | 常州天合光能有限公司 | Processing method for photovoltaic solder strips as well as wire-drawing die and photovoltaic solder strip processing device used in method |
| CN107774728A (en) * | 2016-08-31 | 2018-03-09 | 扬中凯悦铜材有限公司 | Copper bar drawing winds integrated apparatus |
| CN114054527A (en) * | 2021-11-10 | 2022-02-18 | 陕西鼎益科技有限公司 | MCD (micro-mechanical dispersion) traction forming device for high-temperature alloy wire |
-
2010
- 2010-01-18 CN CN201010300401A patent/CN101786111A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537496A (en) * | 2013-10-23 | 2014-01-29 | 常州天合光能有限公司 | Processing method for photovoltaic solder strips as well as wire-drawing die and photovoltaic solder strip processing device used in method |
| CN103537496B (en) * | 2013-10-23 | 2015-09-30 | 常州天合光能有限公司 | The processing method of photovoltaic welding belt and the wire-drawing die of use thereof and photovoltaic welding belt process equipment |
| CN107774728A (en) * | 2016-08-31 | 2018-03-09 | 扬中凯悦铜材有限公司 | Copper bar drawing winds integrated apparatus |
| CN114054527A (en) * | 2021-11-10 | 2022-02-18 | 陕西鼎益科技有限公司 | MCD (micro-mechanical dispersion) traction forming device for high-temperature alloy wire |
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Application publication date: 20100728 |