CN102626845A - Molybdenum lanthanum alloy tray processing method - Google Patents
Molybdenum lanthanum alloy tray processing method Download PDFInfo
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- CN102626845A CN102626845A CN2012100835666A CN201210083566A CN102626845A CN 102626845 A CN102626845 A CN 102626845A CN 2012100835666 A CN2012100835666 A CN 2012100835666A CN 201210083566 A CN201210083566 A CN 201210083566A CN 102626845 A CN102626845 A CN 102626845A
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- molybdenum
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- lanthanum alloy
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Abstract
The invention discloses a molybdenum lanthanum alloy tray processing method. The molybdenum lanthanum alloy tray processing method sequentially comprises the following steps of concocting alloy powder, performing isostatic pressing, performing hot rolling and blank opening, performing caustic washing, performing warm rolling, inspecting a plate, baiting, cleaning, leveling and annealing, milling a mark, drilling, welding and forming, riveting, performing vacuum welding and integral inspecting, and is characterized in that the alloy powder is molybdenum lanthanum alloy powder, containing 0.3-0.5% of lanthanum. The molybdenum lanthanum alloy powder is taken as raw material, so that the high temperature resistance and the high temperature strength of a tray blank are improved, the processing is more convenient, and the yield is higher.
Description
Technical field
the present invention relates to a kind of technological method for processing of molybdenum-lanthanum alloy pallet.
Background technology
are along with development of high-tech; Fields such as mechano-electronic, oil, chemical industry, Aero-Space, boats and ships, atomic energy; Requirement to the kind of molybdenum auxiliary products molybdenum pallet, shape, thickness etc. becomes increasingly complex, and performance requirement is more and more harsher.And the molybdenum materials poor in processability, resistance to elevated temperatures is poor, and intensity is low under the elevated temperature strength, this has proposed very high requirement to drawing abillity and the client has requirement for the machining accuracy of product and outward appearance.
Summary of the invention
It is long, high temperature resistant that
the purpose of this invention is to provide a kind of life-span, and the technological method for processing of the molybdenum-lanthanum alloy pallet that intensity is good under the elevated temperature strength.
are for solving the problems of the technologies described above; The present invention adopts following technical scheme: a kind of processing method of molybdenum-lanthanum alloy pallet; It comprises the allotment of alloy powder, isostatic pressing, hot rolling cogging, alkali cleaning, warm-rolling, sheet material check, blanking, cleaning, smoothing annealing successively, mills mark, punching, pincers worker shaping, riveted joint, vacuum welding, overall test; It is characterized in that: described alloy powder is the molybdenum-lanthanum alloy powder, and the addition of lanthanum is 0.3%-0.5%.
Pressing pressure is 175～185MPa during
compacting.
if slab needs shaping behind the warm-rolling, then anneals successively behind the warm-rolling, alkali cleaning, cold rolling, annealing, alkali cleaning, finished product are cold rolling, wherein cold rolling, annealing, alkali cleaning circulation primary at least.
Heating-up temperature is 1250～1400 ℃ during
hot rolling, and be 30～50min heat time heating time, go out thickness that the warm-rolling finished product gets the raw materials ready and be finished product thickness 120%, go out thickness≤2.5mm that cold rolling back finished product is got the raw materials ready.
described warm-rolling temperature is 900～950 ℃, and temperature retention time is 15～25min.
described cold rolling temperature is 90～110 ℃.
described annealing temperature is 700～950 ℃, and temperature retention time is 30～50min.
the invention has the beneficial effects as follows: the present invention adopts the molybdenum-lanthanum alloy powder as products material, has improved the heat-resisting quantity of pallet blank and the intensity under the high temperature, makes processing more convenient, and yield rate is higher.
Description of drawings
accompanying drawing 1 is a process chart of the present invention.
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The specific embodiment
As shown in Figure 1, the process that this kind made the wide cut molybdenum sheet comprises the allotment of alloy powder, isostatic pressing, hot rolling cogging, alkali cleaning, warm-rolling, sheet material check, blanking, cleaning, smoothing annealing successively, mills mark, punching, bending shaping, riveted joint, vacuum welding, its concrete technological process of overall test are following:
One, molybdenum-lanthanum alloy powder allotment
The about 0.3%-0.5% of addition of
lanthanum, powder must mix, the dress powder the time to make powder shake reality as far as possible, it is evenly distributed.
Two, isostatic pressing
pressing pressure is 180MPa, when needing slow release after the compacting, and controls the oil nozzle direction well, prevents that hydraulic oil from hurting sb.'s feelings.
Three, hot rolling cogging
Heating-up temperature is 1250～1400 ℃ during
hot rolling, and be 30～50min heat time heating time; Should be noted that during hot rolling following some: carry out the rolling mill practice of high temperature heavy reduction, preceding four fire of cogging require heating once, rolling one; If the shaping of slab palpus, first reduction in pass is less, and second and third passage should add aximal deformation value; The split rolling method size of getting the raw materials ready confirms, go out the warm-rolling finished product get the raw materials ready thickness should be greater than 20% of finished product thickness; Going out the cold rolling finished product thickness of getting the raw materials ready is≤2.5 ㎜.Cogging finishes, and back reply blank is annealed, alkali cleaning.The alkali cleaning time is according to the material surface situation.If the blank no problem then directly carries out the sheet material check after the alkali cleaning; Alkali cleaning finishes if find rolling defect reconditioning at any time and get into the warm-rolling stage.
Four, warm-rolling
Should check that whether roller surface is bright and clean, mustn't have defectives such as macroscopic crackle, impression, slag inclusion before
warm-rolling; The warm-rolling temperature is 900～950 ℃, 15～25 ℃ of temperature retention times; Warm-rolling process roll surface can be coated with minor amount of oil, to reduce draught pressure and protection roll surface.After warm-rolling finishes, should carry out the stress relief annealing of sheet material, the annealing concrete regulation is: annealing temperature is 700～950 ℃, and 30～50 ℃, annealing temperature is directly proportional with finished product thickness; Annealing after the row alkali cleaning, if still defectiveness then get into the cold rolling stage.
Five, cold rolling
Temperature was 100 ℃ when
were cold rolling, carried out cold rolling-annealing, alkali cleaning-cold rolling circulating process according to the finished product situation.Cold rolling intact back to blank anneal, alkali cleaning, annealing, alkali cleaning condition and hot rolling cogging after annealing, alkali cleaning term harmonization.
Six, finished product is cold rolling
finished product cold rolling temperature is 100 ℃, the cold rolling after annealing of finished product, and annealing is carried out in vacuum annealing furnace, and reply product surface greasy dirt is clean clearly before the annealing.
Seven, product forms processing
Drawing dimensional requirement water cutting stock is pressed in
, and CNC processes (milling mark, punching), and pincers worker is shaped, welding, riveted joint.Wherein CNC adopts the import cutter.
Eight, overall test
the foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (7)
1. the technological method for processing of a molybdenum-lanthanum alloy pallet; It comprises the allotment of alloy powder, isostatic pressing, hot rolling cogging, alkali cleaning, warm-rolling, sheet material check, blanking, cleaning, smoothing annealing successively, mills mark, punching, pincers worker shaping, riveted joint, vacuum welding, overall test; It is characterized in that: described alloy powder is the molybdenum-lanthanum alloy powder, and the addition of lanthanum is 0.3%-0.5%.
2. the technological method for processing of a kind of molybdenum-lanthanum alloy pallet according to claim 1 is characterized in that: pressing pressure is 175～185MPa during compacting.
3. the technological method for processing of a kind of molybdenum-lanthanum alloy pallet according to claim 1; It is characterized in that: if slab needs shaping behind the warm-rolling; Then anneal successively behind the warm-rolling, alkali cleaning, cold rolling, annealing, alkali cleaning, finished product are cold rolling, wherein cold rolling, annealing, alkali cleaning circulation primary at least.
4. the technological method for processing of a kind of molybdenum-lanthanum alloy pallet according to claim 3; It is characterized in that: heating-up temperature is 1250～1400 ℃ during hot rolling; Be 30～50min heat time heating time; Go out thickness that the warm-rolling finished product gets the raw materials ready and be finished product thickness 120%, go out thickness≤2.5mm that cold rolling back finished product is got the raw materials ready.
5. the technological method for processing of a kind of molybdenum-lanthanum alloy pallet according to claim 3 is characterized in that: described warm-rolling temperature is 900～950 ℃, and temperature retention time is 15～25min.
6. the technological method for processing of a kind of molybdenum-lanthanum alloy pallet according to claim 3 is characterized in that: described cold rolling temperature is 90～110 ℃.
7. the technological method for processing of a kind of molybdenum-lanthanum alloy pallet according to claim 3 is characterized in that: described annealing temperature is 700～950 ℃, and temperature retention time is 30～50min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210083566.6A CN102626845B (en) | 2012-03-27 | 2012-03-27 | Molybdenum lanthanum alloy tray processing method |
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| CN201210083566.6A CN102626845B (en) | 2012-03-27 | 2012-03-27 | Molybdenum lanthanum alloy tray processing method |
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| CN102626845A true CN102626845A (en) | 2012-08-08 |
| CN102626845B CN102626845B (en) | 2015-06-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607464A (en) * | 2015-01-12 | 2015-05-13 | 郑州通达重型机械制造有限公司 | Rolling method of large-width ultrathin molybdenum plate strip for high-temperature heat insulation screen |
| CN105773074A (en) * | 2016-03-14 | 2016-07-20 | 洛阳高新四丰电子材料有限公司 | Manufacturing method of molybdenum alloy boat |
| CN108546894A (en) * | 2018-05-11 | 2018-09-18 | 成都联虹钼业有限公司 | A kind of preparation method with Properties of High Temperature Creep molybdenum plate |
| CN109967971A (en) * | 2017-12-28 | 2019-07-05 | 宁波江丰电子材料股份有限公司 | Wafer tray processing method |
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| CN104607464A (en) * | 2015-01-12 | 2015-05-13 | 郑州通达重型机械制造有限公司 | Rolling method of large-width ultrathin molybdenum plate strip for high-temperature heat insulation screen |
| CN105773074A (en) * | 2016-03-14 | 2016-07-20 | 洛阳高新四丰电子材料有限公司 | Manufacturing method of molybdenum alloy boat |
| CN109967971A (en) * | 2017-12-28 | 2019-07-05 | 宁波江丰电子材料股份有限公司 | Wafer tray processing method |
| CN108546894A (en) * | 2018-05-11 | 2018-09-18 | 成都联虹钼业有限公司 | A kind of preparation method with Properties of High Temperature Creep molybdenum plate |
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| Publication number | Publication date |
|---|---|
| CN102626845B (en) | 2015-06-03 |
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