CN105018766B - A kind of high content of magnesium casts the smelting and pouring process of almag - Google Patents
A kind of high content of magnesium casts the smelting and pouring process of almag Download PDFInfo
- Publication number
- CN105018766B CN105018766B CN201510489506.8A CN201510489506A CN105018766B CN 105018766 B CN105018766 B CN 105018766B CN 201510489506 A CN201510489506 A CN 201510489506A CN 105018766 B CN105018766 B CN 105018766B
- Authority
- CN
- China
- Prior art keywords
- crucible
- aluminium
- magnesium
- melting
- refining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011777 magnesium Substances 0.000 title claims abstract description 67
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000003723 Smelting Methods 0.000 title description 11
- 238000005266 casting Methods 0.000 claims abstract description 64
- 238000007670 refining Methods 0.000 claims abstract description 54
- 238000002844 melting Methods 0.000 claims abstract description 44
- 230000008018 melting Effects 0.000 claims abstract description 44
- 239000011248 coating agent Substances 0.000 claims abstract description 33
- 238000000576 coating method Methods 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 14
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 10
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000011591 potassium Substances 0.000 claims abstract description 10
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 9
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011787 zinc oxide Substances 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 72
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 72
- 239000000956 alloy Substances 0.000 claims description 51
- 229910045601 alloy Inorganic materials 0.000 claims description 50
- 239000004411 aluminium Substances 0.000 claims description 43
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 16
- 229910000838 Al alloy Inorganic materials 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 230000004907 flux Effects 0.000 claims description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 9
- 229910052790 beryllium Inorganic materials 0.000 claims description 9
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 9
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 8
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000010936 titanium Substances 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 239000005864 Sulphur Substances 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- ULGYAEQHFNJYML-UHFFFAOYSA-N [AlH3].[Ca] Chemical compound [AlH3].[Ca] ULGYAEQHFNJYML-UHFFFAOYSA-N 0.000 claims description 7
- FWGZLZNGAVBRPW-UHFFFAOYSA-N alumane;strontium Chemical compound [AlH3].[Sr] FWGZLZNGAVBRPW-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 229910018503 SF6 Inorganic materials 0.000 claims description 6
- RRTQFNGJENAXJJ-UHFFFAOYSA-N cerium magnesium Chemical compound [Mg].[Ce] RRTQFNGJENAXJJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 6
- 238000003892 spreading Methods 0.000 claims description 6
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 6
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 6
- 239000010425 asbestos Substances 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 238000007596 consolidation process Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 239000000320 mechanical mixture Substances 0.000 claims description 5
- 229910052895 riebeckite Inorganic materials 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000005488 sandblasting Methods 0.000 claims description 4
- 229910052712 strontium Inorganic materials 0.000 claims description 4
- PWOSZCQLSAMRQW-UHFFFAOYSA-N beryllium(2+) Chemical compound [Be+2] PWOSZCQLSAMRQW-UHFFFAOYSA-N 0.000 claims description 3
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000007872 degassing Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000007254 oxidation reaction Methods 0.000 abstract description 9
- 230000003647 oxidation Effects 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 6
- 238000011161 development Methods 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 239000002893 slag Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910001051 Magnalium Inorganic materials 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 229910052571 earthenware Inorganic materials 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 238000005275 alloying Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- UAMZXLIURMNTHD-UHFFFAOYSA-N dialuminum;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Mg+2].[Al+3].[Al+3] UAMZXLIURMNTHD-UHFFFAOYSA-N 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- GANNOFFDYMSBSZ-UHFFFAOYSA-N [AlH3].[Mg] Chemical compound [AlH3].[Mg] GANNOFFDYMSBSZ-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- ZBZJXHCVGLJWFG-UHFFFAOYSA-N trichloromethyl(.) Chemical compound Cl[C](Cl)Cl ZBZJXHCVGLJWFG-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a kind of melting and casting method of high content of magnesium almag, melting, including fusing, refining and cast step are carried out using steel crucible, it is characterised in that：The crucible is pre-processed before melting, crucible is heated to 150~200 DEG C during the pretreatment, using the crucible coating that percentage by weight is zinc oxide 8 ± 0.5%, calcium carbonate 8 ± 0.5%, waterglass 5 ± 0.5%, talcum powder 5 ± 0.5%, potassium fluoborate 3 ± 0.5%, water 71 ± 0.5% are matched, accumulated according to inner surface of crucible（cm2）With coating quality（Kg）Ratio is 160~220, and crucible coating is uniformly brushed into crucible internal walls.Oxidation protection effect of the present invention is notable, impurity content is low, refining degassing effect is good and production process is safely controllable, for promoting high content of magnesium almag casting significant in the popularization and application development that ship's fitting is closed on weight structure part.
Description
Technical field
The present invention relates to a kind of aluminium alloy smelting casting technique of technical field of metal material, and in particular to Yi Zhonggao
Content of magnesium casts smelting aluminum-magnesium alloy process.
Background technology
The density of aluminium alloy is small, it is moulding it is high, with excellent electric conductivity and heat conductivility, its surface can generate densification
Oxide film protection layer, there is preferable corrosion resisting property.By adding alloying element on the basis of fine aluminium and passing through heat treatment reinforcement
Afterwards, aluminium alloy can have good comprehensive mechanical property, industrially occupy increasingly consequence, be largely widely used in
The field such as military, industry and communications and transportation.
During aluminium alloy castings selection, if aluminium alloy castings is related on ship or is on active service in marine atmosphere
Condition, it is general from the casting almag series with higher force performance and excellent corrosion resistance energy.As on naval vessel some
The important feature such as part such as radar base, cartridge box class, weapon supporter is using casting almag manufacture, i.e., by mitigating warship
The deadweight of ship causes naval vessel and its part to have moderately good military service stability to improve the speed of a ship or plane and stability.
But although casting almag has higher force performance and excellent corrosion resistance energy, Production Practice of Casting Technologies is relative
It is poor.And the series alloy is because magnesium element content is higher, reinforced alloys constituent content is more, cause its smelting technology complicated
It is difficult to grasp, limits popularization and application of the casting almag on large ship important feature part.
Through the retrieval discovery to prior art, in Chinese patent CN103074510, a kind of high purity alumina-magnesia casting aluminium is referred to
The method for refining of alloy material.This method carries out refining degasification respectively using solid-state refining agent and argon gas, and aluminium alloy melt is long
Phase is maintained between 730~760 DEG C.Magnesium elements recovery rate is high in almag obtained by this method, and degassing effect compared with
It is good.
In Chinese patent CN103060585, it is also mentioned that a kind of method of smelting of high purity alumina-magnesia alloy.Its specific method is
Classification fusing and insulation refining treatment are carried out using steel crucible and graphite crucible, finally by obtaining melt in graphite crucible
Carry out casting pouring shaping.The method can obtain few casting flaw and the relatively low high purity alumina-magnesia cast aluminium alloy gold of iron, silicone content.
It also found in retrieval, in Chinese patent CN104550862, describe thin-walled almag gravity foundry technology,
Fine aluminium ingot is fused into 760~780 DEG C of melt by this method first, then adds the pure magnesium ingot of preheating, titanium agent and thin thereto
Agent, is then added and rotation refinery by de-gassing is carried out after slagging agent, and being then 760 DEG C or so in melt temperature is poured into a mould.The party
The characteristics of method has few simple to operate, state-variable and high product yield.
However, large-scale high performance casting magnalium of the current disclosed Patents method for production weaponry demand
For alloy-steel casting, also slightly show shortcoming.
Although method of refining mentioned by Chinese patent CN103074510 obtains very high magnesium elements recovery rate and preferable
Refining qualities, but in its fusion process, melt is chronically between 730~760 DEG C, without referring to melt and melting earthenware
Isolated protection between crucible.If, can be because ferro element under high temperature is spread into solution and causes iron content using steel crucible
Increase, it is difficult to meet the requirement that iron content mass percent in ZL305 alloys is less than 0.3%；If using graphite crucible,
The element silicon in graphite crucible can be caused to separate out, it is difficult to meet ZL305 Silicon In Alloys constituent contents mass percent less than 0.2%
Requirement, and graphite can also with magnesium elements react and occur corrosion of crucible.This method can only be adapted to the impurity such as production iron, silicon
Constituent content requires not strict casting almag.
In the almag gravity foundry technology introduced in Chinese patent CN 104550862, aluminium alloy melt temperature is long-term
It is maintained at 760~780 DEG C, and not between melt and melting kettle plus isolation medium, does not also prevent during smelting and pouring
The only technological measure of magnesium elements scaling loss.This method can be only applied to general commercial and the less demanding magnalium of comprehensive mechanical property
Alloy-steel casting.
And in a kind of method of smelting of high purity alumina-magnesia alloy mentioned by Chinese patent CN103060585, it is molten using classification
The technique changed and refined, effectively control alloy impurity content and the scaling loss of magnesium elements.But the technique is needed high temperature aluminium alloys
Melt is largely shifted, and adds product quality risk and production cost, and added in its refinery practice to ecology
Environment has the carbon trichloride of harmfulness.This method is only used for some specific almag products of production, is pushing away on a large scale
Cost is higher during wide application.
In summary, on forefathers' Research foundation, for deficiency of the prior art, the present invention is anti-to have sent out a kind of oxidation
Shield effect is notable, impurity content is low, the refining high content of magnesium smelting aluminum-magnesium alloy that degassing effect is good and production process is safely controllable
Casting technique.This method is simple to operate, it is easy to large-scale promotion application in the industrial production, for promoting high content of magnesium magnalium to close
Golden casting is significant in the popularization and application development that ship's fitting is closed on weight structure part.
The content of the invention
In view of the deficienciess of the prior art, the invention provides a kind of oxidation protection effect is notable, impurity content is low, essence
The refining high content of magnesium smelting aluminum-magnesium alloy casting technique that degassing effect is good and production process is safely controllable.This method is simple to operate,
It is easy to large-scale promotion application in the industrial production, for promoting high content of magnesium almag casting in ship's fitting pass weight structure
Popularization and application development on part is significant.
A kind of melting and casting method of the almag of high content of magnesium, melting, including melt, essence are carried out using steel crucible
Refining, cast step, it is characterised in that：The crucible is pre-processed before melting, and crucible is heated into 150 during the pretreatment
~200 DEG C, be zinc oxide 8 ± 0.5%, calcium carbonate 8 ± 0.5%, waterglass 5 ± 0.5%, talcum powder 5 using percentage by weight
± 0.5%, the crucible coating that potassium fluoborate 3 ± 0.5%, water 71 ± 0.5% are matched, (cm is accumulated according to inner surface of crucible2)
It is 160~220 with coating quality (Kg) ratio, crucible coating is uniformly brushed to crucible internal walls.Preferably, zinc oxide 8%, carbon
Sour calcium 8%, waterglass 5%, talcum powder 5%, potassium fluoborate 3%, water 71%, by weight percentage.In melting kettle inwall
Protective coating that high temperature resistant aluminum melt washes away is prepared for completely cut off the diffusion reaction between aluminum melt and crucible.
The melting and casting method of the almag of above-mentioned high content of magnesium, uses lightweight coverture in melting step, described
Lightweight coverture is by RJ-2 flux and accounts for the KCl of RJ-2 flux percentage by weight 40% and constitutes.Protect bath surface, melting
Magnesium elements scaling loss is few in journey.
The melting and casting method of the almag of above-mentioned high content of magnesium, uses refining agent in refining, and the refining agent is
ZS-AJ1 aluminum refining agents, the refining agent accounts for melt quality 0.1~0.2%, and refining agent is blown into aluminium by high-purity argon gas
Refined in alloy melt.Preferably, refining time is 8~14 minutes.Matched somebody with somebody by using dry argon gas with sodium-free refining agent
Refining reaches double purified degasification slag making effect during contract；
The melting and casting method of the almag of above-mentioned high content of magnesium, the melting condition is：It is -0.068 in vacuum
~-0.075MPa pressurizes 2~3 minutes, then irrigate and are made up of volume parts ratio for 1: 99 sulfur hexafluoride and drying nitrogen
Hybrid protection gas pressure is reached 0.2~0.4MPa, then carry out moulding by casting.Aluminium-magnesium alloy melt of the present invention is filling type
During occur oxide slag inclusion probability reduce, melt air content is low, and cast structure is fine and close, and each position mechanical property difference is small.
The melting and casting method of the almag of above-mentioned high content of magnesium, comprises the following steps：
(1) raw material is claimed according to casting almag component requirements, the aluminium content of wherein fine aluminium ingot is not less than 99.8%, pure magnesium
The content of magnesium of ingot is not less than 99.95%, and the Zn content of pure zinc ingot is not less than the flat of titanium elements in 99.99%, aluminium titanium intermediate alloy
The average content that equal content is not less than calcium constituent in 9.5%, aluminium calcium intermediate alloy is not less than strontium member in 25%, aluminium-strontium master alloy
The content that the average content of element is not less than Ce elements in 20%, magnesium cerium intermediate alloy is not less than beryllium in 30%, aluminium beryllium intermediate alloy
The average content of element is not less than 4.6%；Fine aluminium ingot and pure magnesium ingot are subjected to sandblasting and remove surface scale, will in resistance furnace
All raw material carries out the pre-heat treatment at 300 DEG C, and preheating time is not less than 2 hours；
(2) steel crucible is preheated to 200 DEG C, is poured into using the boiling water for accounting for crucible volume 1/3 in melting kettle, treat crucible
In water again after boiling, the water in crucible is all toppled over away；Then cleaning crucible internal walls and outer wall on residual be mingled with
Oxide skin；
(3) crucible is heated to 150~200 DEG C, the use of percentage by weight is zinc oxide 8 ± 0.5%：Calcium carbonate 8 ±
0.5%：Waterglass 5 ± 0.5%：Talcum powder 5 ± 0.5%：Potassium fluoborate 3 ± 0.5%：The earthenware that water 71 ± 0.5% is matched
Crucible coating, (cm is accumulated according to inner surface of crucible2) with coating quality (Kg) ratio be 160~220, crucible coating is uniformly brushed to
Crucible internal walls；
(4) by crucible be warming up to 300 DEG C and be incubated 1 hour after, by aluminium titanium intermediate alloy, aluminium beryllium intermediate alloy and fine aluminium ingot
According to order consolidation uniform coding from bottom to top in crucible, then in one layer of asbestos fibre felt of crucible top bedding；Adjust stove
Temperature is to 880~890 DEG C, with melting sources in crucible, according to fine aluminium ingot, zinc ingot metal, aluminium calcium intermediate alloy and aluminium-strontium master alloy
Order add each raw material；
(5) after melting sources in crucible, melt temperature is light in bath surface spreading at 720~740 DEG C in adjustment crucible
Matter coverture, lightweight coverture is made up of RJ-2 flux with the KCl for accounting for RJ-2 flux percentage by weight 40% through mechanical mixture；To
Magnesium cerium intermediate alloy and pure magnesium ingot are added in crucible；
(6) after raw material all dissolves in crucible, adjustment aluminum melt temperature is 720~740 DEG C, weighs and accounts for melt quality
0.1~0.2% ZS-AJ1 aluminum refining agents, make ZS-AJ1 aluminum refining agents be blown into aluminum melt under high-purity argon gas drive
Bottom, the spray refining time is 8~14 minutes；
(7) adjustment melt temperature is 710~720 DEG C, prepares cast；
(8) crucible and prefabricated casting mold equipped with aluminium alloy melt are put into cast cabin, extracting air in cabin makes vacuum
Value reaches -0.068~-0.075MPa, pressurize 2~3 minutes, and it is 1: 99 then to be irrigated into cast cabin by volume parts ratio
The mixed gas of sulfur hexafluoride and drying nitrogen composition makes pressure value in cast cabin reach 0.2~0.4MPa, is then poured into a mould
Shaping；It is cast in 40 minutes after refining and completes.
Beneficial effect
1. magnesium elements scaling loss is few in fusion process of the present invention, oxide slag inclusion occurs in cavity filling process for aluminium-magnesium alloy melt
Probability reduces, and melt air content is low；Cast structure is fine and close, and each position mechanical property difference is small.
2. the present invention reaches double purified degasification slag making effect in refining；The magnesium member in aluminium-magnesium alloy melt is prevented simultaneously
Oxidization burning loss of the element in refining process；Magnesium elements oxidation slag phenomenon is avoided in cast.
3. the present invention is suitable for use with the almag casting of the large-scale high content of magnesium of steel crucible smelting and pouring, low impurity content
Part.It is simple to operate, clear process, it is easy to large-scale promotion application in the industrial production.
4. after melt casting process processing of the present invention in gained strand alloying component, the average scaling loss amount of magnesium elements is not more than
0.3%, casting upper and lower part body magnesium element content difference is not more than 0.15%, and strand body pinhole rate is one-level.
Brief description of the drawings
Pinhole rate is the almag strand bulk sample grading photo of one-level in Fig. 1 embodiments 3
Embodiment
The present invention is described in further detail with reference to embodiments.
Embodiment 1
Founding ZL301 alloys
(1) according to the requirement of ZL301 alloying components, raw material aluminium content is called 99.8% fine aluminium ingot 178Kg, and content of magnesium is
99.95% pure magnesium ingot 22Kg.Fine aluminium ingot and pure magnesium ingot are subjected to blasting treatment and remove surface scale, by all fine aluminium ingots and
Pure magnesium ingot carries out the pre-heat treatment in the bench vehicle type electrical resistance furnace that furnace temperature is set as 300 DEG C, and preheating time is 3 hours.
(2) steel crucible is preheated to 200 DEG C in melting resistance furnace, hangs out crucible, use the boiling for accounting for crucible volume 1/3
Water is poured into melting kettle, after the water in crucible does not seethe with excitement, and the water in crucible is all toppled over away；It is then clear using steel shovel
Remain and be mingled with and oxide skin on the reason clean crucible internal walls of crucible and outer wall.
(3) crucible cleaned out is heated to 150 DEG C in melting resistance furnace, the use of percentage by weight is oxidation
Zinc 7.5%：Calcium carbonate 7.5%：Waterglass 5.5%：Talcum powder 4.5%：Potassium fluoborate 3.5%：What water 71.5% was matched
Crucible coating 6.9Kg, (cm is accumulated according to inner surface of crucible2) with coating quality (Kg) ratio be 160, crucible coating is uniformly brushed
To crucible internal walls.
(4) by the crucible with coating be warming up to 300 DEG C and be incubated 1 hour after, using charging pincers fine aluminium ingot consolidation is uniform
Code is in crucible, then in one layer of asbestos fibre felt of crucible top bedding.Fire box temperature is set as 880 DEG C, with crucible
The progress of melting sources, remaining fine aluminium ingot is all added in crucible.
(5) after the completion of fine aluminium ingot fusing in crucible, melt temperature is 720 DEG C in adjustment crucible, in bath surface spreading
One layer of lightweight coverture, lightweight coverture is by RJ-2 flux+account for the KCl of RJ-2 flux percentage by weight 40% through mechanical mixture group
Into.Using through the intact stainless steel feeder of crucible coating application, pure magnesium ingot is added into crucible, lightweight is used during charging
Coverture covering exposed aluminum melt liquid level because of oxide-film abrasion, prevents the magnesium elements in aluminium-magnesium alloy melt in refining process
In oxidization burning loss, until the new raw material that adds all melts.
(6) adjustment aluminum melt temperature is 720 DEG C, weighs the ZS-AJ1 aluminum refining agents for accounting for melt quality 0.1%, makes
ZS-AJ1 aluminum refining agents are in the case where high-purity argon gas (Ar contents are 99.99%) drives, and rotated injection getter shower nozzle is uniform
Aluminum melt bottom is blown into, the rotary impeller degassing time is 8 minutes, using the covering of lightweight coverture because oxide-film is ground during refining
Damage and exposed aluminum melt liquid level.
(7) after the completion of refining, melted using through the intact stainless steel slag hitting spoon cleaning melt upper surface of crucible coating application
Agent and the mixture of oxidizing slag, and the new lightweight coverture of one layer of redistributing.It is 710 DEG C to adjust melt temperature, prepares cast.
(8) the lightweight coverture of melt upper surface is cleaned out using slag hitting spoon, and in one layer of bath surface spreading by sulphur
The fire retardant of sulphur powder and boric acid (the two mass ratio is 1: 1) composition.The steel earthenware of aluminium alloy melt will be filled using metallurgical traveling crane
Crucible is hung from melting resistance furnace to be gone on the rotary casting stand in cast cabin, and prefabricated casting mold then is lifted into rotary casting platform
Below frame.It is then switched off pouring into a mould hatch door, air in cabin is extracted using vavuum pump, until relative vacuum angle value reaches -0.068MPa
Afterwards, pressurize 2 minutes, then irrigate what is be made up of sulfur hexafluoride and drying nitrogen that volume parts ratio is 1: 99 into cast cabin
Hybrid protection gas, until pressure value reaches 0.2MPa in cast cabin, then rotates rotary casting stand, realizes that high magnalium magnesium is closed
Golden casting pouring shaping.Cast process is completed in 40 minutes after the completion of refining.
The average scaling loss amount of magnesium elements is 0.26%, and casting upper and lower part body magnesium element content difference is 0.13%, casting
Part body sampling pinhole rate one-level.
Embodiment 2
Founding ZL305 alloys
1) according to the requirement of ZL305 alloying components, fine aluminium ingot 171.2Kg, pure magnesium ingot 18Kg, pure zinc ingot 2.8Kg, aluminium 10 are weighed
The titanium intermediate alloy 4Kg and beryllium intermediate alloy 4Kg of aluminium 5.The aluminium content of wherein fine aluminium ingot is not less than 99.8%, the content of magnesium of pure magnesium ingot
It is not less than 99.95%, the average content that the Zn content of pure zinc ingot is not less than titanium elements in 99.99%, aluminium titanium intermediate alloy is not low
The average content of beryllium element is not less than 4.6% in 9.5%, aluminium beryllium intermediate alloy.Fine aluminium ingot and pure magnesium ingot are carried out into sandblasting to go
Fall surface scale, preheated all raw material in the bench vehicle type electrical resistance furnace that furnace temperature is set as 300 DEG C in resistance furnace
Processing, is preheated 2 hours.
(2) steel crucible is preheated to 200 DEG C in resistance crucible furnace, hangs out crucible, use the boiling for accounting for crucible volume 1/3
Water is poured into melting kettle, after the water in crucible not after boiling, and the water in crucible is all toppled over away；Then use steel shovel
Remain and be mingled with and oxide skin on the cleaning clean crucible internal walls of crucible and outer wall.
(3) crucible cleaned out is heated to 200 DEG C in melting resistance furnace, the use of percentage by weight is oxidation
Zinc 8.5%：Calcium carbonate 8.5%：Waterglass 4.5%：Talcum powder 5.5%：Potassium fluoborate 2.5%：What water 70.5% was matched
Crucible coating 5Kg, (cm is accumulated according to inner surface of crucible2) with coating quality (Kg) ratio be 220, crucible coating is uniformly brushed to
Crucible internal walls.
(4) by the crucible with coating be warming up to 300 DEG C and be incubated 1 hour after, using charging pincers by aluminium titanium intermediate alloy,
Aluminium beryllium intermediate alloy and fine aluminium ingot according to order consolidation uniform coding from bottom to top in crucible, then in crucible top bedding one
Layer asbestos fibre felt.Fire box temperature is set as 890 DEG C, with the progress of melting sources in crucible, fine aluminium ingot and zinc ingot metal added
Enter in crucible.
(5) after the completion of melting sources in crucible, melt temperature is between 740 DEG C in adjustment crucible, in bath surface paving
Spread one layer of lightweight coverture, lightweight coverture is by RJ-2 flux+account for the KCl of RJ-2 flux percentage by weight 40% through mechanical mixture
Composition.Using through the intact stainless steel feeder of crucible coating application, pure magnesium ingot is added into crucible, using light during charging
Matter coverture covering exposed aluminum melt liquid level because of oxide-film abrasion, until new add raw material all fusings.
(6) adjustment aluminum melt temperature is 730 DEG C, weighs the ZS-AJ1 aluminum refining agents for accounting for melt quality 0.2%, makes
ZS-AJ1 aluminum refining agents are in the case where high-purity argon gas (Ar contents are 99.99%) drives, and rotated injection getter shower nozzle is uniform
Aluminum melt bottom is blown into, the rotary impeller degassing time is 14 minutes, using the covering of lightweight coverture because oxide-film is ground during refining
Damage and exposed aluminum melt liquid level.
(7) after the completion of refining, melted using through the intact stainless steel slag hitting spoon cleaning melt upper surface of crucible coating application
Agent and the mixture of oxidizing slag, and the new lightweight coverture of one layer of redistributing.It is 720 DEG C to adjust melt temperature, prepares cast.
(8) the lightweight coverture of melt upper surface is cleaned out using slag hitting spoon, and in one layer of bath surface spreading by sulphur
The fire retardant of sulphur powder and boric acid (the two mass ratio is 1: 1) composition.The steel earthenware of aluminium alloy melt will be filled using metallurgical traveling crane
Crucible is hung from melting resistance furnace to be gone on the rotary casting stand in cast cabin, and prefabricated casting mold then is lifted into rotary casting platform
Below frame.It is then switched off pouring into a mould hatch door, air in cabin is extracted using vavuum pump, until relative vacuum angle value reaches -0.075MPa
Afterwards, pressurize 3 minutes, then irrigate what is be made up of sulfur hexafluoride and drying nitrogen that volume parts ratio is 1: 99 into cast cabin
Hybrid protection gas, until pressure value reaches 0.4MPa in cast cabin, then rotates rotary casting stand, realizes that high magnalium magnesium is closed
Golden casting pouring shaping.Cast process is completed in 40 minutes after the completion of refining.
The average scaling loss amount of magnesium elements is 0.29%, and casting upper and lower part body magnesium element content difference is 0.14%, casting
Part body sampling pinhole rate one-level.
Embodiment 3
Al-9.3Mg-1.3Zn-0.2Ca-0.4Ti-0.35Ce-0.1Sr almags
(1) according to Al-Mg-Zn-Ca-Ti-Ce-Sr almag component requirements, fine aluminium ingot 165Kg, pure magnesium ingot are weighed
16.8Kg, pure zinc ingot 2.6Kg, the titanium intermediate alloy 9.4Kg of aluminium 10, aluminium calcium intermediate alloy 1.9Kg, aluminium-strontium master alloy 1.2Kg, magnesium
30 cerium intermediate alloy 2.75Kg.The aluminium content of wherein fine aluminium ingot is not less than 99.8%, and the content of magnesium of pure magnesium ingot is not less than
99.95%, the average content that the Zn content of pure zinc ingot is not less than titanium elements in 99.99%, aluminium titanium intermediate alloy is not less than
9.5%, the average content of calcium constituent is not less than the average content of strontium element in 25%, aluminium-strontium master alloy in aluminium calcium intermediate alloy
The content for being not less than Ce elements in 20%, magnesium cerium intermediate alloy is not less than being averaged for beryllium element in 30%, aluminium beryllium intermediate alloy and contained
Amount is not less than 4.6%.Fine aluminium ingot and pure magnesium ingot are subjected to sandblasting and remove surface scale, all raw material exists in resistance furnace
Furnace temperature is set as in 300 DEG C of bench vehicle type electrical resistance furnace carrying out the pre-heat treatment, preheated 4 hours.
(2) steel crucible is preheated to 200 DEG C in resistance crucible furnace, hangs out crucible, use the boiling for accounting for crucible volume 1/3
Water is poured into melting kettle, after the water in crucible not after boiling, and the water in crucible is all toppled over away；Then use steel shovel
Remain and be mingled with and oxide skin on the cleaning clean crucible internal walls of crucible and outer wall.
(3) crucible cleaned out is heated to 180 DEG C in melting resistance furnace, the use of percentage by weight is oxidation
Zinc 8%：Calcium carbonate 8%：Waterglass 5%：Talcum powder 5%：Potassium fluoborate 3%：The crucible coating that water 71% is matched
5.5Kg, (cm is accumulated according to inner surface of crucible2) with coating quality (Kg) ratio be 200, crucible coating is uniformly brushed in crucible
Wall.
(4) after being warming up to 300 DEG C by the crucible with coating and be incubated 1 hour, using charging pincers by aluminium titanium intermediate alloy and
Fine aluminium ingot according to order consolidation uniform coding from bottom to top in crucible, then in one layer of asbestos fibre felt of crucible top bedding.
Fire box temperature is set as 885 DEG C, with the progress of melting sources in crucible, according to fine aluminium ingot, zinc ingot metal, aluminium calcium intermediate alloy and
The order of aluminium-strontium master alloy adds each raw material.
(5) after the completion of melting sources in crucible, melt temperature is between 730 DEG C in adjustment crucible, in bath surface paving
Spread one layer of lightweight coverture, lightweight coverture is by RJ-2 flux+account for the KCl of RJ-2 flux percentage by weight 40% through mechanical mixture
Composition.Using through the intact stainless steel feeder of crucible coating application, magnesium cerium intermediate alloy and pure magnesium ingot are added into crucible,
The exposed aluminum melt liquid level because of oxide-film abrasion is covered using lightweight coverture during charging, until the new raw material that adds all melts
Change.
(6) adjustment aluminum melt temperature is 740 DEG C, weighs the ZS-AJ1 aluminum refining agents for accounting for melt quality 0.18%, makes
ZS-AJ1 aluminum refining agents are in the case where high-purity argon gas (Ar contents are 99.99%) drives, and rotated injection getter shower nozzle is uniform
Aluminum melt bottom is blown into, the rotary impeller degassing time is 10 minutes, using the covering of lightweight coverture because oxide-film is ground during refining
Damage and exposed aluminum melt liquid level.
(7) after the completion of refining, melted using through the intact stainless steel slag hitting spoon cleaning melt upper surface of crucible coating application
Agent and the mixture of oxidizing slag, and the new lightweight coverture of one layer of redistributing.It is 715 DEG C to adjust melt temperature, prepares cast.
(8) the lightweight coverture of melt upper surface is cleaned out using slag hitting spoon, and in one layer of bath surface spreading by sulphur
The fire retardant of sulphur powder and boric acid (the two mass ratio is 1: 1) composition.The steel earthenware of aluminium alloy melt will be filled using metallurgical traveling crane
Crucible is hung from melting resistance furnace to be gone on the rotary casting stand in cast cabin, and prefabricated casting mold then is lifted into rotary casting platform
Below frame.It is then switched off pouring into a mould hatch door, air in cabin is extracted using vavuum pump, until relative vacuum angle value reaches -0.071MPa
Afterwards, pressurize 3 minutes, then irrigate what is be made up of sulfur hexafluoride and drying nitrogen that volume parts ratio is 1: 99 into cast cabin
Hybrid protection gas, until pressure value reaches 0.3MPa in cast cabin, then rotates rotary casting stand, realizes that high magnalium magnesium is closed
Golden casting pouring shaping.Cast process is completed in 40 minutes after the completion of refining.
(9) solution heat treatment：When the furnace temperature of resistance heat-treatment furnace is less than 200 DEG C, casting is put into band circulated air
Heat-treatment furnace in；In the case where programming rate is 60-80 DEG C/h, furnace temperature is risen to 435 ± 5 DEG C, and be incubated 9.5-10h；So
Afterwards in the case where programming rate is 30-50 DEG C/h, furnace temperature is risen 490 ± 3 DEG C, and be incubated 7.5-8h；By the material in heat treatment
Quenched in the water for being put into 96~98 DEG C, and material be transferred to from heat-treatment furnace quenching tank in time no more than
20s。
The average scaling loss amount of casting magnesium elements obtained by step (8) is 0.3%, and casting upper and lower part body magnesium element content is poor
Different is 0.15%, casting body sampling pinhole rate one-level.
The hydronalium each element content being thermally treated resulting in through step (9)：Mg：9.3%, Zn：1.3%, Ca：
0.2%, Ti：0.4%, Ce：0.35%, Sr：0.1%, Fe=0.12%, Ni=0.02%, Cu=0.05%, Si=
0.07%, Mn=0.006%, surplus are Al；Room temperature tensile intensity=400MPa, elongation percentage=18%, Brinell hardness=
91HBS；After natrual ageing processing in (48 months), room temperature tensile intensity=405MPa, elongation percentage=16%, Brinell hardness=
93HBS。
Claims (4)
1. a kind of melting and casting method of high content of magnesium almag, melting is carried out using steel crucible, including fusing, refining and
Pour into a mould step, it is characterised in that：The crucible is pre-processed before melting, crucible is heated to 150 during the pretreatment~
200 DEG C, using percentage by weight be zinc oxide 8 ± 0.5%, calcium carbonate 8 ± 0.5%, waterglass 5 ± 0.5%, talcum powder 5 ±
0.5%th, the crucible coating that potassium fluoborate 3 ± 0.5%, water 71 ± 0.5% are matched, cm is accumulated according to inner surface of crucible2With coating
Quality Kg ratios are 160~220, and crucible coating is uniformly brushed into crucible internal walls；Lightweight coverture is used in melting step,
The lightweight coverture is by RJ-2 flux and accounts for the KCl of RJ-2 flux percentage by weight 40% and constitutes；
Refining agent is used in refining, the refining agent is ZS-AJ1 aluminum refining agents, and the refining agent accounts for melt quality
0.1~0.2%, refining agent is blown into aluminium alloy melt by high-purity argon gas and refined；
The pouring condition is：Aluminium-magnesium alloy melt and casting mold to be cast are protected in vacuum for -0.068~-0.075MPa
Pressure 2~3 minutes, it is 1 then to irrigate by volume parts ratio:The hybrid protection gas of 99 sulfur hexafluoride and drying nitrogen composition
Body makes pressure reach 0.2~0.4MPa, then carries out moulding by casting.
2. the melting and casting method of the high content of magnesium almag as described in claim 1, zinc oxide 8%, calcium carbonate 8%, water glass
Glass 5%, talcum powder 5%, potassium fluoborate 3%, water 71%, by weight percentage.
3. the melting and casting method of the high content of magnesium almag as described in claim 1 or 2, refining time is 8~14 points
Clock.
4. the melting and casting method of high content of magnesium almag as claimed in claim 1, comprises the following steps：
（1）Raw material is weighed according to casting almag component requirements, the aluminium content of wherein fine aluminium ingot is not less than 99.8%, pure magnesium ingot
Content of magnesium be not less than 99.95%, the Zn content of pure zinc ingot is not less than being averaged for titanium elements in 99.99%, aluminium titanium intermediate alloy and contained
The average content that amount is not less than calcium constituent in 9.5%, aluminium calcium intermediate alloy is not less than the flat of strontium element in 25%, aluminium-strontium master alloy
The content that equal content is not less than Ce elements in 20%, magnesium cerium intermediate alloy is not less than the flat of beryllium element in 30%, aluminium beryllium intermediate alloy
Equal content is not less than 4.6%；Fine aluminium ingot and pure magnesium ingot are subjected to sandblasting and remove surface scale, by all former materials in resistance furnace
Material carries out the pre-heat treatment at 300 DEG C, and preheating time is not less than 2 hours；
（2）Steel crucible is preheated to 200 DEG C, is poured into melting kettle, is treated in crucible using the boiling water for accounting for crucible volume 1/3
Water not after reboiling, the water in crucible is all toppled over away；Then clear up to remain on crucible internal walls and outer wall and be mingled with and oxygen
Change skin；
（3）Crucible is heated to 150~200 DEG C, the use of percentage by weight is zinc oxide 8 ± 0.5%, calcium carbonate 8 ± 0.5%, water
The crucible coating that glass 5 ± 0.5%, talcum powder 5 ± 0.5%, potassium fluoborate 3 ± 0.5%, water 71 ± 0.5% are matched, according to
Inner surface of crucible accumulates cm2It is 160~220 with coating quality Kg ratios, crucible coating is uniformly brushed to crucible internal walls；
（4）By crucible be warming up to 300 DEG C and be incubated 1 hour after, aluminium titanium intermediate alloy, aluminium beryllium intermediate alloy and fine aluminium ingot are pressed
According to order consolidation uniform coding from bottom to top in crucible, then in one layer of asbestos fibre felt of crucible top bedding；Adjust furnace temperature
To 880~890 DEG C, with melting sources in crucible, according to fine aluminium ingot, zinc ingot metal, aluminium calcium intermediate alloy and aluminium-strontium master alloy
Order adds each raw material；
（5）After melting sources in crucible, melt temperature covers at 720~740 DEG C in bath surface spreading lightweight in adjustment crucible
Lid agent, lightweight coverture is made up of RJ-2 flux with the KCl for accounting for RJ-2 flux percentage by weight 40% through mechanical mixture；So
Magnesium cerium intermediate alloy and pure magnesium ingot are added in backward crucible；
（6）It is 720~740 DEG C to adjust aluminum melt temperature, weighs the ZS-AJ1 alloy refinings for accounting for melt quality 0.1~0.2%
Agent, makes ZS-AJ1 aluminum refining agents be blown into aluminum melt bottom under high-purity argon gas drive, and the spray refining time is 8~14 points
Clock；
（7）It is 710~720 DEG C to adjust melt temperature, prepares cast；
（8）Crucible and prefabricated casting mold equipped with aluminium alloy melt are put into cast cabin, extracting air in cabin reaches vacuum degree
To -0.068~-0.075MPa, pressurize 2~3 minutes, it is 1 then to be irrigated into cast cabin by volume parts ratio:99 hexafluoro
Changing the mixed gas of sulphur and drying nitrogen composition makes pressure value in cast cabin reach 0.2~0.4MPa, then carries out moulding by casting；
It is cast in 40 minutes after refining and completes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489506.8A CN105018766B (en) | 2015-08-11 | 2015-08-11 | A kind of high content of magnesium casts the smelting and pouring process of almag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489506.8A CN105018766B (en) | 2015-08-11 | 2015-08-11 | A kind of high content of magnesium casts the smelting and pouring process of almag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105018766A CN105018766A (en) | 2015-11-04 |
| CN105018766B true CN105018766B (en) | 2017-09-15 |
Family
ID=54409064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510489506.8A Active CN105018766B (en) | 2015-08-11 | 2015-08-11 | A kind of high content of magnesium casts the smelting and pouring process of almag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105018766B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458228A (en) * | 2015-12-24 | 2016-04-06 | 天津立中合金集团有限公司 | Method for aluminum alloy online casting under nitrogen protection |
| CN107267712B (en) * | 2017-07-08 | 2019-06-28 | 海安海太铸造有限公司 | The method of a small amount of low-density volatile metal is introduced into molten steel furnace |
| CN107757764A (en) * | 2017-10-12 | 2018-03-06 | 宝鸡市金海源钛标准件制品有限公司 | A kind of almag rear bicycle |
| CN107838387A (en) * | 2017-11-28 | 2018-03-27 | 上海航天精密机械研究所 | The method that ultrasonic assistant prepares ZM5 Mg alloy castings |
| TWI657878B (en) * | 2018-11-01 | 2019-05-01 | 中國鋼鐵股份有限公司 | Mold powder for continuous casting of high aluminum steel |
| CN113308614A (en) * | 2021-05-21 | 2021-08-27 | 贵州安吉航空精密铸造有限责任公司 | ZM6 alloy refining method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477508A (en) * | 2010-11-30 | 2012-05-30 | 上海航天精密机械研究所 | Method for preventing iron increase in ZL205A alloy melting process |
| CN103060585B (en) * | 2012-12-14 | 2015-07-08 | 威瑞泰科技发展(宁波)有限公司 | Smelting method for Al-Mg-Mn-Cu-Ti aluminum alloy |
-
2015
- 2015-08-11 CN CN201510489506.8A patent/CN105018766B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105018766A (en) | 2015-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105018766B (en) | A kind of high content of magnesium casts the smelting and pouring process of almag | |
| CN108546834B (en) | Purification smelting method for nickel-based high-temperature alloy master alloy | |
| CN105063440B (en) | A kind of high tough high stability casting hydronalium and preparation method thereof | |
| CN101440436B (en) | Purified smelting technique for high-temperature superalloy | |
| CN104593652B (en) | Quasicrystal and alumina mixed particle reinforced magnesium-based composite material and manufacturing method thereof | |
| CN103060585B (en) | Smelting method for Al-Mg-Mn-Cu-Ti aluminum alloy | |
| CN107513641B (en) | A kind of technique preparing advanced ultra supercritical heat-resisting alloy | |
| RU2012121882A (en) | FLEXIBLE ELECTRIC ARC FURNACE SYSTEM WITH MINIMUM ENERGY CONSUMPTION AND METHODS FOR PRODUCING STEEL PRODUCTS | |
| CN106498251B (en) | A kind of biological medical magnesium alloy and preparation method thereof | |
| CN110396605A (en) | A kind of preparation method of wrought superalloy ingot casting | |
| KR20170087867A (en) | Processes for producing low nitrogen, essentially nitride-free chromium and chromium plus niobium-containing nickel-based alloys and the resulting chromium and nickel-based alloys | |
| CN103911524A (en) | Preparation method of copper rare earth binary intermediate alloy | |
| CN103774017A (en) | Semi-continuous casting process of large-diameter moderate-strength heat-resisting magnesium alloy cast ingots | |
| CN103468864B (en) | 1Cr21Ni5Ti steel smelting method | |
| CN102345024A (en) | Smelting process of nickel bronze | |
| CN102965556B (en) | Multi-element Mg-Zn-Al based magnesium alloy and preparation method thereof | |
| CN114058918A (en) | High-toughness magnesium alloy and preparation method and application thereof | |
| CN108660320A (en) | A kind of low-aluminium high titanium-type high temperature alloy electroslag remelting process | |
| CN104975197B (en) | Rare-earth magnesium alloy preparation method | |
| CN107243602B (en) | Model casting aluminium alloy smelting pouring procedure | |
| CN104195356B (en) | Smelting and purification method of beryllium beads used for casting pure beryllium ingots | |
| CN102839292A (en) | Aluminum iron alloy with ultra-low carbon, ultra-low titanium and high silicon contents for deoxidizing aluminum silicon killed steel and manufacturing method of aluminum iron alloy | |
| CN105081284A (en) | Method for casting outstanding shell of brake booster vacuum pump | |
| CN107400836A (en) | A kind of magnesium metal calcium smelting reductive jar and its casting technique | |
| CN107868897A (en) | A kind of magnesium lithium alloy with extremely excellent die casting performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240308 Address after: 400039 Chongqing Jiulongpo Yuzhou Road No. 33 Patentee after: Southwest Institute of technology and engineering of China Ordnance Equipment Group Country or region after: China Address before: 400039 Chongqing Jiulongpo Yuzhou Road No. 33 Patentee before: NO 59 Research Institute OF CHINA ORDNACE INDUSTRY Country or region before: China |