CN1203956A - Corrosion resistant non-toxic colourable compression cast aluminium alloy - Google Patents
Corrosion resistant non-toxic colourable compression cast aluminium alloy Download PDFInfo
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- CN1203956A CN1203956A CN 97107577 CN97107577A CN1203956A CN 1203956 A CN1203956 A CN 1203956A CN 97107577 CN97107577 CN 97107577 CN 97107577 A CN97107577 A CN 97107577A CN 1203956 A CN1203956 A CN 1203956A
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Abstract
The present invention discloses a corrosion-resistant, non-toxic and colourable compression cast aluminium alloy which is formed from the elements of Mn, Mg, Cu, Fe, Zn, Ti, Si and Al,and possesses good compression casting property, resistance to corrosion, machining property and oxidation colouring property. Said invented compression cast aluminium alloy possesses extensive application range, not only can be used to make food utensil, but also can be made into various outdoor corrosion-resistant compression cast fittings, can be used in water supply system, favourable for reducing secondary pollution of water quality, so that the tube material made of said invented product can be substituted for galvanized iron tube.
Description
The present invention relates to a kind of corrosion-resistant, nontoxicity, colorable die-cast aluminium alloy, belong to metal material field.
Aluminium diecast alloy of the prior art, though the characteristics that the die-casting process performance is good, physical strength is high are arranged, but still having big deficiency aspect the over-all propertieies such as corrosion-resistant, nontoxicity, heat-tinting, machining, also once put forth effort on the research of the painted aluminium diecast alloy of energy in the world, but its purposes all is machinofacture, instrument, automobile.In the production of motorcycle, ornamental part etc., and reckon without the nontoxicity requirement of food utensil, foodstuffs industry.In DIN DIN1725.2-86, former Soviet states standard TOCT2685-75 and CNS GB1173-86, GB8733-88, all stipulate, with do not allow to contain beryllium (Be) in the Al-alloy products of Food Contact, arsenic (As) content is not more than 0.15%, zinc (Zn) content is not more than 0.3%, plumbous (Pb) content is not more than 0.15%.Also have in the prior art and a kind ofly containing magnesium, manganese, zinc, copper, iron, zirconium, adding content in the aluminium alloy of silicon is the aluminium diecast alloy of the thulium of 0.15～0.8% (weight), though have anti-corrosion, light, but color development characteristics, but because of having added thulium, so manufacturing process complexity, the cost height, because the content height of silicon, manganese content is low, influenced corrosion resistance nature, the metal flow performance, the cavity filling energy, mechanical property and tinctorial property, the content of copper and magnesium is higher in the alloy, also influenced physical strength, the light of oxide film, increased hot cracking tendency, simultaneously owing to add thulium and work as zinc content greater than 0.3%, all do not meet above-mentioned standard, can not be applied to food utensil production and foodstuffs industry.
The objective of the invention is to overcome the deficiency in the above-mentioned technology, good combination properties such as a kind of corrosion-resistant, nontoxicity that meets national GB1173-86, GB8733-88 aluminum alloy food vessel standard, pigmentable, machining, die casting performance are provided, cost is low, melting technology is simple, but also will be able to be applicable to the novel aluminium diecast alloy of the production and the food-processing of food utensil.Owing in the proportioning of alloy, greatly reduce the content of silicon, the manganese content that has improved simultaneously, corrosion resistance nature, metal flow performance, cavity filling energy, mechanical property and tinctorial property have been improved, reduced the content of copper and magnesium in the alloy, improved physical strength, prevent hot tearing, increased the light of oxide film.
The present invention constitutes like this: the alloy of being made up of manganese, magnesium, copper, zinc, iron, titanium, silicon, aluminium element is pressed the column element weight proportion and is formed through conventional melting:
Manganese (Mn) 0.8～2.5%
Magnesium (Mg) 1.2～3.3%
Copper (Cu) 0.12～0.18%
Zinc (Zn) 0～0.1%
Iron (Fe) 0.5～1.3%
Titanium (Ti) 0.18～0.23%
Silicon (Si) 0.4～1.0%
Aluminium (Al) surplus
Compared with prior art, the present invention has good die-casting process performance, corrosion resistance nature, machinability and heat-tinting performance, and cost is low, satisfactory mechanical property, melting technology is simple, and nontoxicity meets standard GB 1173-86, GB8733-88 standard.Owing in the proportioning of alloy, greatly reduce the content of silicon, improved the content of manganese simultaneously, corrosion resistance nature, metal flow performance, cavity filling energy, mechanical property and tinctorial property have been improved, reduced the content of copper and magnesium in the alloy, improved physical strength, prevent hot tearing, increased the light of oxide film.It of many uses, except that production that is applicable to food utensil and food processing plant, also be applicable to outdoor corrosion resistant alloy for die casting accessory, and be applicable to that the general corrosion medium is than bad working environment, help reducing the secondary pollution of water quality when being used for tap water supply, be the regeneration product of galvanized iron pipe, have good social benefit and economic benefit.
Embodiments of the invention: a kind of die-cast aluminum alloy material that is used to prevent connecting tube-threeway manufacturing of drinking water with secondary pollution water supply line, the weight proportion of its element is:
Manganese (Mn) 1.9%
Magnesium (Mg) 2.8%
Copper (Cu) 0.15%
Zinc (Zn) 0.05%
Iron (Fe) 1.2%
Titanium (Ti) 0.17%
Silicon (Si) 0.8%
Aluminium (Al) surplus
Above element forms through conventional melting, with 125 tons of pressure die-casting machine compacting teesaddle joints, shape as shown in Figure 1, its three endoporus have certain taper from inside to outside, wall thickness 2.5mm, mould three faces are loosed core, production technique production routinely, moulding is good, and product is through removing cast gate, overlap, shaping, behind the vibropolish three interfaces are carried out the outside screw machining, processing characteristics is good, screw thread is smooth, and pore-free obtains silvery white through conventional anodic oxidation treatment, can obtain golden yellow through electrolytic coloring again, red, green, colors such as red copper also can be carried out chromium plating, reach mirror-finishing after the polished finish.This product carries out the water test, and pressure is not found to leak when 1.6MPa, and resistance to air loss is good, and can reach more than 20 years work-ing life.
Claims (1)
1, a kind of corrosion-resistant, nontoxicity, colorable die-cast aluminium alloy of forming by manganese, magnesium, copper, zinc, iron, titanium, silicon, aluminium element, it is characterized in that: alloy is pressed the column element weight proportion and is formed through conventional melting:
Manganese (Mn) 0.8～2.5%
Magnesium (Mg) 1.2～3.3%
Copper (Cu) 0.12～0.18%
Zinc (Zn) 0～0.1%
Iron (Fe) 0.5～1.3%
Titanium (Ti) 0.18～0.23%
Silicon (Si) 0.4～1.0%
Aluminium (Al) surplus
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97107577A CN1054648C (en) | 1997-06-29 | 1997-06-29 | Corrosion resistant non-toxic colourable compression cast aluminium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97107577A CN1054648C (en) | 1997-06-29 | 1997-06-29 | Corrosion resistant non-toxic colourable compression cast aluminium alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1203956A true CN1203956A (en) | 1999-01-06 |
| CN1054648C CN1054648C (en) | 2000-07-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97107577A Expired - Fee Related CN1054648C (en) | 1997-06-29 | 1997-06-29 | Corrosion resistant non-toxic colourable compression cast aluminium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1054648C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392157A (en) * | 2011-11-17 | 2012-03-28 | 张洁 | Preparation method of aluminium alloy rod for electric bicycle frame pipe |
| CN101492782B (en) * | 2008-04-02 | 2012-10-17 | 何旭坤 | Novel aluminum alloy and heat tinting process for the aluminum alloy product |
| CN104789825A (en) * | 2015-05-15 | 2015-07-22 | 朱岳群 | Die-castable alloy containing aluminum, magnesium, silicon, manganese and rare earth |
| CN105463270A (en) * | 2016-01-06 | 2016-04-06 | 熊超 | Die-casting aluminum alloy allowing heat tinting |
| CN106756322A (en) * | 2016-12-29 | 2017-05-31 | 歌尔股份有限公司 | It is a kind of can anodic coloration pack alloy |
| CN109217046A (en) * | 2018-10-15 | 2019-01-15 | 苏州中日兴通讯有限公司 | The curved formula high frequency radio frequency coaxial connector of thread type and its manufacturing method |
| CN111809086A (en) * | 2019-04-12 | 2020-10-23 | 比亚迪股份有限公司 | Die-casting aluminum alloy and preparation method and application thereof |
-
1997
- 1997-06-29 CN CN97107577A patent/CN1054648C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492782B (en) * | 2008-04-02 | 2012-10-17 | 何旭坤 | Novel aluminum alloy and heat tinting process for the aluminum alloy product |
| CN102392157A (en) * | 2011-11-17 | 2012-03-28 | 张洁 | Preparation method of aluminium alloy rod for electric bicycle frame pipe |
| CN102392157B (en) * | 2011-11-17 | 2017-02-01 | 江苏亘德科技有限公司 | Preparation method of aluminium alloy rod for electric bicycle frame pipe |
| CN104789825A (en) * | 2015-05-15 | 2015-07-22 | 朱岳群 | Die-castable alloy containing aluminum, magnesium, silicon, manganese and rare earth |
| CN105463270A (en) * | 2016-01-06 | 2016-04-06 | 熊超 | Die-casting aluminum alloy allowing heat tinting |
| CN106756322A (en) * | 2016-12-29 | 2017-05-31 | 歌尔股份有限公司 | It is a kind of can anodic coloration pack alloy |
| CN109217046A (en) * | 2018-10-15 | 2019-01-15 | 苏州中日兴通讯有限公司 | The curved formula high frequency radio frequency coaxial connector of thread type and its manufacturing method |
| CN111809086A (en) * | 2019-04-12 | 2020-10-23 | 比亚迪股份有限公司 | Die-casting aluminum alloy and preparation method and application thereof |
| CN111809086B (en) * | 2019-04-12 | 2021-12-07 | 比亚迪股份有限公司 | Die-casting aluminum alloy and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN1054648C (en) | 2000-07-19 |
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