CN102146531B - Titanium additive - Google Patents
Titanium additive Download PDFInfo
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- CN102146531B CN102146531B CN2011100733935A CN201110073393A CN102146531B CN 102146531 B CN102146531 B CN 102146531B CN 2011100733935 A CN2011100733935 A CN 2011100733935A CN 201110073393 A CN201110073393 A CN 201110073393A CN 102146531 B CN102146531 B CN 102146531B
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Abstract
The invention discloses a titanium additive which comprises a titanium powder and a fluxing agent. The titanium powder and the fluxing agent are mixed in a proportion and quantitatively pressed into the titanium additive, wherein the titanium additive is in aluminium foil packing; the titanium powder is a high-pure titanium powder which is prepared by carrying out magnetic separation on waste titanium so as to remove chlorine-magnesium impurities and has the fineness above 80-mesh; and the fluxing agent is an environment-friendly fluxing agent which is prepared from aluminum powders and vaseline and has fineness of 80-100 meshes. The fineness of the titanium additive is small; the melting amount is improved at the low temperature of 730 DEG C at the melting rate of below 5 minutes, thereby shortening melting time and improving the actual recovery rate of the titanium additive, wherein the recovery rate can reach above 95%; when the grain refining agent is used in melting, no environment pollution happens; manufacturing cost can be reduced by above 20% by utilizing waste titanium; comprehensive mechanical property of aluminum alloy can be improved; fissure and shrinkage porosity tendencies of the aluminum alloy product are reduced; and the quality of the aluminum alloy product is improved.
Description
Technical field
The present invention relates to duraluminum processing treatment flux, especially relate to a kind of titanium elements additive.
Background technology
Titanium is a grain-refining agent the most frequently used in the duraluminum, and it plays the thinning microstructure effect, can improve the mechanical property of aluminum alloy casting, improves casting compactness, reduces foundry goods shrinkage porosite and crackle.At present; Domestic titanium elements additive is mixed and processed by titanium valve and fusing assistant, and wherein fusing assistant is the halogenide salt, like potassium fluoroaluminate, sodium fluoroaluminate etc.; Existing titanium elements additive in use has following point: the one, in aluminium alloy smelting is handled fusing slower, fusing time is long; The 2nd, the fusing amount is on the low side in 730 ℃ of low temperature aluminium water, and the recovery (melting rate) is on the low side, generally has only 90-92%; The 3rd, fusing assistant fusing and packing burning can produce obnoxious flavour environment is polluted; Be directly to process as the titanium elements additive with titanium valve again, cost is high.Cause the major cause of the problems referred to above: the one, in the titanium elements additive because 1668 ℃ of titanium elements fusing points; Fusing point is high, adds that granularity is excessive, and fusing is slow, the time is long; The fusing caloric receptivity is many; Cause titanium unit fusing slow, when aluminium water temp during at 730 ℃ of low temperature, titanium elements additive fusing amount reduces; The melting rate that really is melted in acting titanium elements in the aluminium water has only 90-92% (recovery is meant that the titanium elements content that is melted in the aluminium water accounts for the per-cent of titanium elements total amount in the titanium elements additive), and also some unfused titanium elements is stayed and handled in the slag and waste; The 2nd, contain the fluorine objectionable impurities in the fusing assistant, add that with plastic wrapping titanium elements additive fusing assistant fusing and plastics burning all can produce fluorine-containing obnoxious flavour, and environment is caused severe contamination; Be directly to use titanium valve processing again, the titanium valve price is high, adds that melting rate is low, and the useless titanium in the waste residue is not also recycled at present.
Summary of the invention
Problem to titanium elements additive in the above-mentioned prior art exists the invention provides a kind of not only recovery more than 95%, and not environmental pollution, and preparation cost is low, the titanium elements additive that suitability is strong.
The technical scheme that the technical problem that the present invention will solve is taked is: said titanium elements additive comprises titanium valve and two kinds of raw materials of fusing assistant; The quantitatively compacting and become the titanium elements additive of said two kinds of raw material proportional mixing; Said titanium elements additive is used aluminium foil packing; Said titanium valve be useless titanium to remove the fineness of processing after the chlorine magnesium addition is handled through magnetic separation be the above high-purity titanium valves of 80 orders, said fusing assistant is to be 80-100 purpose environmental protection fusing assistant by the fineness that aluminium powder and Vaseline are mixed and made into.
Magnetic separation removal chlorine magnesium addition treatment process according to the invention is meant that useless titanium process is broken, pulverizes, sieves and process 10-20 purpose powder; After powder carried out the magnetic de-iron; The powder that is soaked in water again forms slurry, removes impurity such as chlorine and magnesium again with the refining agent refined slurry, behind the drying and dewatering; Cutting is block, pulverizes, ball milling, screening process the above high-purity titanium valve of 80 orders again.
It is that the fineness that the Vaseline of high-purity aluminium powder of 99.5% and 0.5% is mixed and made into is neutral environmental protection fusing assistant for the 80-100 order that fusing assistant according to the invention adopts content.
Titanium elements additive according to the invention is a main raw material by high-purity titanium valve that useless titanium recycles and processes more than 80 orders, mixes compacting with 80-100 purpose environmental protection fusing assistant by the titanium elements content ratio in all size and forming.
The key technical indexes of the present invention:
Density;>=2.7 g/cm
3, the recovery:>=95%,
Melting rate :≤5min, free from environmental pollution.
The present invention adopts magnetic separation to remove chlorine magnesium addition treatment process useless titanium is handled; Make useless titanium become high-purity titanium valve; High-purity titanium valve with obtaining after the useless titanium processing is prepared the titanium elements additive; One of its key problem in technology: be that this treatment process not only can make useless titanium purify to the titaniferous amount at the high-purity titanium valve more than 99.9%, and handle easy to operately that processing costs is lower; Two of key problem in technology is: the fusing assistant that will produce environmental pollution changes the environmental protection fusing assistant that processing can not produce environmental pollution into, and this environmental protection fusing assistant is mixed by high-purity aluminium powder and Vaseline.
The present invention compares with titanium elements additive of the prior art, and have the following advantages: titanium elements additive fineness is littler, under 730 ℃ of low temperature, can improve the fusing amount; Melting rate has shortened fusing time below 5 minutes, has improved the actual recovered rate of titanium elements additive; The recovery can reach more than 95%; And fusing assistant fusing and packing burning do not produce environmental pollution, and useless titanium reclaims manufacturing cost is descended more than 20%, can improve the duraluminum comprehensive mechanical performance; Reduce alloy product and crack and the shrinkage porosite tendency, improve the alloy product quality.
Embodiment
Embodiment 1, and the titanium elements additive specification of present embodiment production is 70Ti5Al, and it is made up of the titanium valve of 70%wt, the aluminium powder of 5%wt and the fusing assistant of 25%wt; Said titanium valve is processed 10-20 purpose powder with the useless titanium that reclaims through broken, pulverizing and screening, powder is carried out magnetic separation after, the powder that is soaked in water again forms slurry; Remove impurity such as chlorine and magnesium again with the refining agent refined slurry; Behind the drying and dewatering, cutting is block, pulverizes, ball milling, screening process the above high-purity titanium valve of 80 orders again; Behind pure aluminium powder that said fusing assistant employing content is 99%wt and the Vaseline uniform mixing of 1%wt, screening is processed fineness and is the Powdered environmental protection fusing assistant of neutral for the 80-100 order.; Behind the uniform mixing, in mould, quantitatively being pressed into weight is the right cylinder titanium elements additive of 500 ± 5g, packs with aluminium foil more in proportion for said titanium valve, aluminium powder and environmental protection fusing assistant.
The titanium elements additive of embodiment 1 preparation is through detecting and using, and each item index is:
Density g/cm3:2.87, total impurities: 2.14%, impurity F e:1.13%,
The recovery: 97%, melting rate: 2.6min, Ti content: 70.2%.
Embodiment 2, and the titanium elements additive specification of present embodiment production is 97Ti, and it is made up of the titanium valve of 97%wt and the fusing assistant of 3%wt; Said titanium valve is processed 10-20 purpose powder with the useless titanium that reclaims through broken, pulverizing and screening, powder is carried out magnetic separation after, the powder that is soaked in water again forms slurry; Remove impurity such as chlorine and magnesium again with the refining agent refined slurry; Behind the drying and dewatering, cutting is block, pulverizes, ball milling, screening process the above high-purity titanium valve of 80 orders again; Behind pure aluminium powder that said fusing assistant employing content is 99.5%wt and the Vaseline uniform mixing of 0.5%wt, screening is processed fineness and is the Powdered environmental protection fusing assistant of neutral for the 80-100 order.; Said titanium valve and environmental protection fusing assistant form mixture behind the uniform mixing in proportion, and mixture quantitatively is pressed into the right cylinder titanium elements additive that weight is 500 ± 5g in mould, pack with aluminium foil again.
The titanium elements additive of embodiment 2 preparations is through detecting and using, and each item index is:
Density g/cm3:3.12, total impurities: 0.45%, impurity F e:0.08%,
The recovery: 98%, melting rate: 2.3min, Ti content: 99.2%.
Claims (1)
1. titanium elements additive; Relate to duraluminum processing treatment flux; It comprises titanium valve and two kinds of raw materials of fusing assistant, and said two kinds of raw material proportional mixing are quantitatively suppressed and become the titanium elements additive, and it is characterized in that: said titanium elements additive is used aluminium foil packing; Said titanium valve be useless titanium to remove the fineness of processing after the chlorine magnesium addition is handled through magnetic separation be the above high-purity titanium valves of 80 orders, said fusing assistant is to be 80-100 purpose environmental protection fusing assistant by the fineness that aluminium powder and Vaseline are mixed and made into.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100733935A CN102146531B (en) | 2011-03-25 | 2011-03-25 | Titanium additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100733935A CN102146531B (en) | 2011-03-25 | 2011-03-25 | Titanium additive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102146531A CN102146531A (en) | 2011-08-10 |
| CN102146531B true CN102146531B (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100733935A Expired - Fee Related CN102146531B (en) | 2011-03-25 | 2011-03-25 | Titanium additive |
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| CN (1) | CN102146531B (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709383A (en) * | 2009-06-25 | 2010-05-19 | 于翔 | High-efficiency environment-friendly additive for smelting aluminum alloy |
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2011
- 2011-03-25 CN CN2011100733935A patent/CN102146531B/en not_active Expired - Fee Related
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| CN102146531A (en) | 2011-08-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110810 Assignee: Jiangxi Hong Ke special alloy Co., Ltd Assignor: Zhu Gangqiang Contract record no.: 2013360000041 Denomination of invention: Titanium additive Granted publication date: 20120725 License type: Exclusive License Record date: 20130703 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20170325 |
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| CF01 | Termination of patent right due to non-payment of annual fee |