CN102389898A - Rolling technology for pure tungsten sheet and device thereof - Google Patents
Rolling technology for pure tungsten sheet and device thereof Download PDFInfo
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- CN102389898A CN102389898A CN2011103507423A CN201110350742A CN102389898A CN 102389898 A CN102389898 A CN 102389898A CN 2011103507423 A CN2011103507423 A CN 2011103507423A CN 201110350742 A CN201110350742 A CN 201110350742A CN 102389898 A CN102389898 A CN 102389898A
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- tungsten sheet
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- pure tungsten
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Abstract
The invention relates to a rolling technology for a pure tungsten sheet and a device thereof. An electric heating pipe is arranged in a roller; an electric heating platform is arranged at the front part on a rolling-in side of the roller; the top surface of the electric heating platform is located at a peak on the outer periphery of a lower roller; a roller wiper is arranged on a rolling-out side of the roller; and a temperature control device is used for controlling the temperatures of the electric heating pipe and the electric heating platform. According to the rolling technology, the rolling temperature of the tungsten sheet is strictly controlled, the electric heating platform is utilized to heat the to-be-rolled tungsten sheet, and meanwhile, the roller is heated and kept warm, thereby ensuring deformation of the tungsten sheet within a suitable plastic temperature range all the time during the whole rolling process, avoiding oxidization, greatly promoting the yield and realizing batch and low-cost production of ultrathin tungsten sheets.
Description
Technical field
The present invention relates to the metal material processing preparation field, especially its equipment of pure tungsten sheet rolling mill practice.
Background technology
Tungsten is periodic table group vib element, surperficial tool silver gray gloss, and powder is lead; Its fusing point, intensity, elastic modelling quantity height, the coefficient of expansion is little, and steam forces down; Conduction, thermal conductivity is good; Therefore etch resistant properties is superior, and shortcoming is that low temperature brittleness and high-temperature oxydation are serious, is widely used in fields such as electric, metallurgical, space flight, medical treatment, atomic energy industry.
Because the low temperature brittleness and the high-temperature oxydation of tungsten material are serious, bring difficulty for the pressure processing of tungsten, it is 0.2 mm that conventional at present tungsten sheet is processed thickness usually; The process difficulty; Percent defective is high, and template is undesirable with thickness deviation, and the fast development of new product more approaches (0.08 mm) to the thickness requirement of tungsten sheet; Template and tolerance (0.01 mm) require stricter, can't produce the thin tungiten plate that meets the requirements in batches frugally through the milling method of routine; Part producing person is placed on the tungsten sheet earlier to take out after the heating in the deep fat and is rolled, but the cooling rapidly in transfer process of tungsten sheet has recovered fragility and caused rolling cracking, causes product percent of pass extremely low.Also have the producer to adopt naked light that the tungsten sheet is heated, but flame heat is not only inhomogeneous but also make material oxidation, lumber recovery is low, is unfavorable for that output improves processing method that neither be desirable.And in the operation of rolling; The tungsten sheet adds the chip that drops man-hour with both sides end to end and the foreign matter in the environment very easily sticks on the roll, if untimely wiping, roller is fashionable once more will extrude pit and slight crack on tungsten sheet surface; Cause and further to process, produce waste product.
Summary of the invention
The applicant is difficult to prepare the shortcoming of pure tungsten sheet as thin as a wafer to above-mentioned existing production, and pure tungsten sheet rolling mill practice and equipment thereof a kind of rational in infrastructure, easy to operate is provided, thereby can be in batches, the strict utmost point thin tungiten plate of rolling thickness frugally.
The technical scheme that the present invention adopted is following:
A kind of pure tungsten sheet rolling mill practice may further comprise the steps:
The first step: treating rolling pure tungsten sheet, to be heated to temperature be 150～250 ℃;
Second step: the pure tungsten sheet feeding roll after will heating, the roller surface temperature is 150～250 ℃, mill speed is 4～7 meters/minute;
The 3rd step: utilize wiping roller device breaker roll surface in time to clean;
The 4th step: progressively reduce the roll shop building gap width, above three steps that circulate are until the pure tungsten sheet that obtains desired thickness.
A kind of equipment that is rolled according to above-mentioned pure tungsten sheet rolling mill practice has electric heating tube in the roll set inside, is provided with the electrical heating platform at the forequarter that is rolled into of roll, and the apical side height of electrical heating platform is positioned at the periphery peak place of bottom roll; The side that shuts out at roll is provided with wiping roller device; Electric heating tube and electrical heating platform all adopt attemperating unit to carry out temperature control.It is further characterized in that:
Be embedded with heating wire in the substrate of said electrical heating platform, be provided with the stainless steel cladding plate at substrate top surface, heating wire is connected with outside temperature control system.
Said wiping roller device front portion is provided with the wiping roller device chuck of metal material, and the openend of chuck is filled in the batten of parcel soft cloth and realized clamping, and the rear portion of wiping roller device chuck is provided with bearing pin; Bearing pin is inserted in the end inside of sleeve pipe; Utilize securing member that the both wings of sleeve pipe are fixed on the frame, the other end of sleeve pipe is provided with internal thread, regulates bolt and is meshed with the internal thread of sleeve pipe; The end of regulating bolt is at inside pipe casing, connects with the end face of bearing pin.
Beneficial effect of the present invention is following:
(1) the present invention is through carrying out strictness control to the rolling temperature of tungsten sheet; Utilizing the electrical heating platform to treat rolling tungsten sheet on the one hand heats; Breaker roll carries out heat tracing simultaneously; Thereby having guaranteed that the tungsten sheet is in the suitable plastic temperature range all the time in the whole operation of rolling is out of shape, and avoids taking place oxidation simultaneously.The present invention adopts the electrical heating platform to treat rolling pure tungsten sheet to heat; Adopt the method for oil heating and flame heat than prior art; Not only improve operating efficiency greatly, optimized operating environment; The more important thing is that the tungsten sheet can guarantee in temperature section accurately, to get into rolling all the time; Avoided leaving and be quickly cooled to the brittleness temperature section behind the deep fat and cause the cracked shortcoming with the inhomogeneous easy oxidation of flame heat of fragility, thereby improved yield rate greatly, realized mass and economized that utmost point thin tungiten plate is produced.
(2) after roll of the present invention adopts heater; Can make roller surface remain accurate temperature; Thereby guarantee that the tungsten sheet does not cause the material cooling because of the low temperature of roll when the contact roll; The process of guaranteeing material is in the plasticity temperature range all the time, thereby guarantees rolling carrying out smoothly.
(3) the present invention through be provided with at the roll rear portion can flexible wiping roller device; Can wipe effectively and timely the foreign matter that the operation of rolling sticks on the roll; Avoid having improved yield rate greatly because of foreign matter causes the rolling shortcoming that can not carry out to the injury of material.
Description of drawings
Fig. 1 is the stereogram of pure tungsten sheet rolling equipment of the present invention.
Fig. 2 is the stereogram of electrical heating platform.
Fig. 3 is for wiping the stereogram of roller device.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
Pure tungsten sheet rolling mill practice of the present invention may further comprise the steps:
The first step: treat rolling pure tungsten sheet and carry out heat tracing, guarantee that its temperature is 150～250 ℃;
Second step: the pure tungsten sheet feeding roll after will heating, guarantee that the roller surface temperature is 150～250 ℃ this moment, mill speed is 4～7 meters/minute;
The 3rd step: utilize wiping roller device breaker roll surface in time to clean;
The 4th step: reduce the roll shop building gap width, above three steps that circulate are until the tungsten sheet that obtains desired thickness.
As shown in Figure 1, the present invention has electric heating tube 7 in roll 4 set inside, is provided with electrical heating platform 5 at the forequarter that is rolled into of roll 4, and the apical side height of electrical heating platform 5 is positioned at the periphery peak place of bottom roll; The side that shuts out at roll 4 is provided with wiping roller device 3, and clean on breaker roll 4 surfaces; Electric heating tube 7 all adopts attemperating unit to carry out temperature control with electrical heating platform 5.As shown in Figure 2, be embedded with heating wire 9 in the substrate 10 of electrical heating platform 5, be provided with stainless steel cladding plate 8 at substrate 10 end faces, heating wire 9 is connected with outside temperature control system, can accurately control its heating-up temperature.As shown in Figure 3, wipe the wiping roller device chuck 12 that roller device 3 front portions are provided with metal material, the openend of chuck 12 is filled in the batten 11 of parcel soft cloth and is realized clamping; The rear portion of wiping roller device chuck 12 is provided with bearing pin, and bearing pin is inserted in the end inside of sleeve pipe 2, utilizes securing member that the both wings of sleeve pipe 2 are fixed on the frame; The other end of sleeve pipe 2 is provided with internal thread; Regulate bolt 1 and be meshed with the internal thread of sleeve pipe 2, the end of adjusting bolt 1 is in sleeve pipe 2 inside, connects with the end face of bearing pin.
During real work, the sleeve pipe 2 of wiping roller device 3 is fixed on the frame, bolt 1 is regulated in turn, pushes against on the roll surface of roll 4 through pushing against the batten 11 that bearing pin will wrap up soft cloth.Breaker roll 4 heats, and makes the roll surface intensification and remains on suitable temperature range, generally gets 150～250 ℃; Electrical heating platform 5 is heated, make stainless steel cladding plate 8 surface temperatures maintain 150～250 ℃.Start roll 4, roll surface speed is set to 4～7 meters/minute; Pure tungsten sheet 6 is placed on the stainless steel cladding plate 8, heated 2～4 seconds, and at the uniform velocity push roll 4, under the effect of roll-force, plastic deformation takes place in pure tungsten sheet 6, thereby obtains thin rolled sheet.In the operation of rolling, the soft cloth on the batten 11 carries out wiping timely to roll surface, has avoided the destruction of foreign matter to the tungsten sheet.In the roll rotary course, can adjust thrust at any time through regulating bolt.Through regulating the gap between the top and bottom rolls 4, the deflection of each rolling thickness direction is 3～5% usually, can be continuous repeatedly the tungsten sheet is rolled thin operation, finally obtain pure tungsten sheet as thin as a wafer, the I of thickness reaches 0.08mm.
The present invention is controlled at 150～250 ℃ with the temperature of electrical heating platform and roll; Corresponding with the plasticity temperature section of the crisp ductility transition temperature curve of desired tungsten tablet raw material; Thereby make the tungsten sheet in optimum temperature section, realize stable plastic deformation; Avoided being cooled to the embrittlement phenomenon that the tungsten sheet produces in the brittleness temperature, avoided tungsten sheet generation oxidation simultaneously.
The wiping roller device that utilization of the present invention can be regulated is wiped the roll surface Superficial Foreign Body timely and effectively, compares the wiping roller device structure that prior art rigidly fixes, and can regulate compressing degree easily simultaneously in work at any time, thereby guarantee wiping effect.Adopt batten parcel soft cloth, make it have certain flexibility, can be better and the roll surface realization effectively push against; Avoided the structure of available technology adopting steel disc parcel soft cloth; With roll surface is that rigidity contacts, and can not effectively guarantee to push against, and easily roll surface is produced defectives such as destruction simultaneously; Thereby can effectively improve wiping effect, improved yield rate greatly.
More than describing is to explanation of the present invention; It or not qualification to invention; Institute of the present invention restricted portion is referring to claim, and under the situation of spirit of the present invention, the present invention can do any type of modification; For example technological parameter is adjusted a little, be applied in the operation of rolling of other high desnity metal sheet materials.
Claims (4)
1. a pure tungsten sheet rolling mill practice is characterized in that, may further comprise the steps:
The first step: treating rolling pure tungsten sheet, to be heated to temperature be 150～250 ℃;
Second step: the pure tungsten sheet feeding roll after will heating, the roller surface temperature is 150～250 ℃, mill speed is 4～7 meters/minute;
The 3rd step: utilize wiping roller device breaker roll surface in time to clean;
The 4th step: progressively reduce the roll shop building gap width, above three steps that circulate are until the pure tungsten sheet that obtains desired thickness.
2. equipment that is rolled according to the described pure tungsten sheet of claim 1 rolling mill practice; It is characterized in that: electric heating tube is arranged in the roll set inside; The forequarter that is rolled at roll is provided with the electrical heating platform, and the apical side height of electrical heating platform is positioned at the periphery peak place of bottom roll; The side that shuts out at roll is provided with wiping roller device; Electric heating tube and electrical heating platform all adopt attemperating unit to carry out temperature control.
3. one kind according to the described pure tungsten sheet of claim 2 rolling equipment, and it is characterized in that: be embedded with heating wire in the substrate of said electrical heating platform, be provided with the stainless steel cladding plate at substrate top surface, heating wire is connected with outside temperature control system.
4. one kind according to the described pure tungsten sheet of claim 2 rolling equipment; It is characterized in that: said wiping roller device front portion is provided with the wiping roller device chuck of metal material, and the openend of chuck is filled in the batten of parcel soft cloth and realized clamping, and the rear portion of wiping roller device chuck is provided with bearing pin; Bearing pin is inserted in the end inside of sleeve pipe; Utilize securing member that the both wings of sleeve pipe are fixed on the frame, the other end of sleeve pipe is provided with internal thread, regulates bolt and is meshed with the internal thread of sleeve pipe; The end of regulating bolt is at inside pipe casing, connects with the end face of bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103507423A CN102389898A (en) | 2011-11-09 | 2011-11-09 | Rolling technology for pure tungsten sheet and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103507423A CN102389898A (en) | 2011-11-09 | 2011-11-09 | Rolling technology for pure tungsten sheet and device thereof |
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| CN102389898A true CN102389898A (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103507423A Pending CN102389898A (en) | 2011-11-09 | 2011-11-09 | Rolling technology for pure tungsten sheet and device thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406356A (en) * | 2013-02-04 | 2013-11-27 | 李广阔 | Cold-rolling mill supporting roller wiper with automatic adjustment function |
| CN105414182A (en) * | 2015-12-29 | 2016-03-23 | 西安瑞福莱钨钼有限公司 | Rolling method of bright thin tungsten chip |
| CN105642713A (en) * | 2015-04-24 | 2016-06-08 | 洛阳高新永杰钨钼材料有限公司 | Tungsten plate rolling machine |
| CN106552908A (en) * | 2016-12-02 | 2017-04-05 | 苏州金江铜业有限公司 | A kind of high-purity beryllium paper tinsel preparation method of short route |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001286926A (en) * | 2000-04-11 | 2001-10-16 | Toyo Seihaku Kk | Squeezing roller and multi roll mill for metallic foil |
| CN1785542A (en) * | 2005-12-28 | 2006-06-14 | 西部金属材料股份有限公司 | Rolling method of thin tungiten plate |
| CN100464880C (en) * | 2007-12-17 | 2009-03-04 | 西部金属材料股份有限公司 | Method for rolling small-coarseness high-light thin wolfram sheet |
| CN201419187Y (en) * | 2009-03-31 | 2010-03-10 | 余克 | Electric heating roll |
| CN201907844U (en) * | 2011-01-18 | 2011-07-27 | 攀枝花煤业（集团）有限责任公司 | Cleaning device used for cleaning belt conveyor roller |
-
2011
- 2011-11-09 CN CN2011103507423A patent/CN102389898A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001286926A (en) * | 2000-04-11 | 2001-10-16 | Toyo Seihaku Kk | Squeezing roller and multi roll mill for metallic foil |
| CN1785542A (en) * | 2005-12-28 | 2006-06-14 | 西部金属材料股份有限公司 | Rolling method of thin tungiten plate |
| CN100464880C (en) * | 2007-12-17 | 2009-03-04 | 西部金属材料股份有限公司 | Method for rolling small-coarseness high-light thin wolfram sheet |
| CN201419187Y (en) * | 2009-03-31 | 2010-03-10 | 余克 | Electric heating roll |
| CN201907844U (en) * | 2011-01-18 | 2011-07-27 | 攀枝花煤业（集团）有限责任公司 | Cleaning device used for cleaning belt conveyor roller |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406356A (en) * | 2013-02-04 | 2013-11-27 | 李广阔 | Cold-rolling mill supporting roller wiper with automatic adjustment function |
| CN105642713A (en) * | 2015-04-24 | 2016-06-08 | 洛阳高新永杰钨钼材料有限公司 | Tungsten plate rolling machine |
| CN105414182A (en) * | 2015-12-29 | 2016-03-23 | 西安瑞福莱钨钼有限公司 | Rolling method of bright thin tungsten chip |
| CN106552908A (en) * | 2016-12-02 | 2017-04-05 | 苏州金江铜业有限公司 | A kind of high-purity beryllium paper tinsel preparation method of short route |
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Application publication date: 20120328 |
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