CN105316556A - Die-casting high-brightness zinc alloy as well as preparation method and application thereof - Google Patents
Die-casting high-brightness zinc alloy as well as preparation method and application thereof Download PDFInfo
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- CN105316556A CN105316556A CN201510912237.1A CN201510912237A CN105316556A CN 105316556 A CN105316556 A CN 105316556A CN 201510912237 A CN201510912237 A CN 201510912237A CN 105316556 A CN105316556 A CN 105316556A
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Abstract
The invention discloses a die-casting high-brightness zinc alloy as well as a preparation method and application thereof. The zinc alloy consists of the following components in percentage by mass: 25-35% of zinc, 10-20% of copper, 5-15% of aluminum, 0.2-1% of lanthanum, 0.1-0.9% of chromium, 0.3-1.3% of manganese, 0.2-0.6% of nickel, 0.1-0.8% of beryllium, 0.1-0.8% of cadmium, 0.3-0.7% of scandium, 1-5% of bisphenylsulfonyl imine, 1-3% of sodium allylsulfonate and the balance of iron. The components and the content thereof in the zinc alloy disclosed by the invention are reasonably configured to ensure that the zinc alloy has sufficient mechanical properties, has a bright surface, not only has excellent normal-temperature mechanical properties but also optimizes process parameters of die casting and inert gas pressure parameters during refining, and is suitable for hardness requirements of preparing die castings under a high-temperature heavy-load working condition.
Description
Technical field
The present invention relates to metal material field, specifically a kind of die casting highlighted zinc alloy and its production and use.
Background technology
Die casting is a kind of part of pressure die casting, use the pressure die casting machinery pressure die-casting machine installing casting die, metals such as being heated to be liquid copper, zinc, aluminium or zinc alloy is poured into the feeding mouth of pressure die-casting machine, through pressure die-casting machine die casting, cast out the copper of the shape and size of mould restriction, zinc, aluminium part or zinc alloy part, such part is just called die casting usually.Die casting is widely used in the industry-by-industries such as automobile making, oil engine production, motorcycle manufacture, electric motor manufacture, oil pump manufacture, gearing manufacture, precision instrument, landscaping, power construction, building decoration.
Existing die casting zinc alloy material generally includes the compositions such as aluminium, iron, copper, zinc, because the content of element each in alloy is different, therefore spatial distribution differences is comparatively large in the alloy for each element, causes each alloy over-all properties different, particularly mechanical property differs greatly.The defects such as loosening easily appears in castingprocesses, segregation, and its use temperature is also lower, and a large amount of heat releases usually produced due to frictional wear under fully loaded transportation condition make component temperature overheating and are difficult to use.
Summary of the invention
The object of the present invention is to provide and be a kind ofly applicable to zinc alloy of the die casting of high temperature heavy load work and its production and use, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
The highlighted zinc alloy of a kind of die casting; be grouped into by the following one-tenth according to mass percent: zinc 25-35%, copper 10-20%, aluminium 5-15%, lanthanum 0.2-1%, chromium 0.1-0.9%, manganese 0.3-1.3%, nickel 0.2-0.6%, beryllium 0.1-0.8%, cadmium 0.1-0.8%, scandium 0.3-0.7%, dibenzenesulfonyl imines 1-5%, sodium allyl sulfonate 1-3%, surplus is iron.
As further scheme of the present invention; the present invention is grouped into by the following one-tenth according to mass percent: zinc 28-32%, copper 12-18%, aluminium 8-12%, lanthanum 0.4-0.8%, chromium 0.3-0.6%, manganese 0.6-1%, nickel 0.3-0.5%, beryllium 0.3-0.6%, cadmium 0.3-0.6%, scandium 0.4-0.6%, dibenzenesulfonyl imines 2-4%, sodium allyl sulfonate 1.5-2.5%, surplus is iron.
As further scheme of the present invention; the present invention is grouped into by the following one-tenth according to mass percent: zinc 30%, copper 16%, aluminium 10%, lanthanum 0.46%, chromium 0.5%, manganese 08%, nickel 0.4%, beryllium 0.4%, cadmium 0.3-0.6%, scandium 0.5%, dibenzenesulfonyl imines 3%, sodium allyl sulfonate 2%, and surplus is iron.
The present invention also provides a kind of die casting preparation method of highlighted zinc alloy, comprises the following steps:
1) zinc, copper, iron, aluminium are put into vacuum melting furnace crucible, be evacuated to 8.5 × more than 10-2Pa, start to heat up, after temperature rises to 920-935 DEG C, stop vacuumizing and be filled with rare gas element to 5 × 104Pa in vacuum melting furnace; Then continue to be warming up to 1250-1300 DEG C, after zinc, dibenzenesulfonyl imines, iron, copper dissolve completely, start in zinc, copper, iron, aluminum alloy melt, be filled with rare gas element and stir 40-42 minute, aluminium alloy is cooled, obtains master alloy;
2) master alloy and other remaining ingredients are joined in vacuum melting furnace crucible, be evacuated to 9.2 × more than 10-2Pa, start to heat up, after temperature rises to 920-940 DEG C, stop vacuumizing and be filled with rare gas element to 4 × 104Pa in vacuum melting furnace; Then continue to be warming up to 1400-1450 DEG C, treat that alloy dissolves completely, after refining leaves standstill 40-42 minute, after inspection bath composition is qualified, namely obtain refining liquid;
3) after refining liquid being cooled to 720-730 DEG C, die casting is preheated in the mold cavity of 250-300 DEG C to passing through, the refining liquid melt flow of wherein filling when type starts is 0.4m/s, casting pressure is 75MPa, fill type rate more than 65% after, the melt flow improving refining liquid is 105MPa to 2.5m/s, casting pressure, terminates until fill type die casting;
4) thermal treatment: by die casting foundry goods under 450 DEG C of conditions after homogenizing 30-35h after shrend to room temperature, then be warming up to the ageing treatment that 170-175 DEG C is carried out 13-15h, obtain the zinc alloy of die casting.
The purposes in die casting prepared by the highlighted zinc alloy of described die casting.
Compared with prior art, the invention has the beneficial effects as follows:
The reasonable disposition of each composition and content in the present invention, ensure that zinc alloy has enough mechanical properties, surface-brightening, not only there is excellent ambient temperature mechanical properties, and inert gas pressure parameter when optimizing processing parameter and the refining of die casting, be applicable to prepare the hardness requirement of the die casting under high temperature heavy load working conditions.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The highlighted zinc alloy of a kind of die casting; be grouped into by the following one-tenth according to mass percent: zinc 25-35%, copper 10-20%, aluminium 5-15%, lanthanum 0.2-1%, chromium 0.1-0.9%, manganese 0.3-1.3%, nickel 0.2-0.6%, beryllium 0.1-0.8%, cadmium 0.1-0.8%, scandium 0.3-0.7%, dibenzenesulfonyl imines 1-5%, sodium allyl sulfonate 1-3%, surplus is iron.
The present invention also provides a kind of die casting preparation method of highlighted zinc alloy, comprises the following steps:
1) zinc, copper, iron, aluminium are put into vacuum melting furnace crucible, be evacuated to 8.5 × more than 10-2Pa, start to heat up, after temperature rises to 920-935 DEG C, stop vacuumizing and be filled with rare gas element to 5 × 104Pa in vacuum melting furnace; Then continue to be warming up to 1250-1300 DEG C, after zinc, dibenzenesulfonyl imines, iron, copper dissolve completely, start in zinc, copper, iron, aluminum alloy melt, be filled with rare gas element and stir 40-42 minute, aluminium alloy is cooled, obtains master alloy;
2) master alloy and other remaining ingredients are joined in vacuum melting furnace crucible, be evacuated to 9.2 × more than 10-2Pa, start to heat up, after temperature rises to 920-940 DEG C, stop vacuumizing and be filled with rare gas element to 4 × 104Pa in vacuum melting furnace; Then continue to be warming up to 1400-1450 DEG C, treat that alloy dissolves completely, after refining leaves standstill 40-42 minute, after inspection bath composition is qualified, namely obtain refining liquid;
3) after refining liquid being cooled to 720-730 DEG C, die casting is preheated in the mold cavity of 250-300 DEG C to passing through, the refining liquid melt flow of wherein filling when type starts is 0.4m/s, casting pressure is 75MPa, fill type rate more than 65% after, the melt flow improving refining liquid is 105MPa to 2.5m/s, casting pressure, terminates until fill type die casting;
4) thermal treatment: by die casting foundry goods under 450 DEG C of conditions after homogenizing 30-35h after shrend to room temperature, then be warming up to the ageing treatment that 170-175 DEG C is carried out 13-15h, obtain the zinc alloy of die casting.
As further scheme of the present invention, the purposes in die casting prepared by the highlighted zinc alloy of die casting of the present invention.
Embodiment 1
In the embodiment of the present invention; the highlighted zinc alloy of a kind of die casting; be grouped into by the following one-tenth according to mass percent: zinc 30%, copper 16%, aluminium 10%, lanthanum 0.46%, chromium 0.5%, manganese 08%, nickel 0.4%, beryllium 0.4%, cadmium 0.3-0.6%, scandium 0.5%, dibenzenesulfonyl imines 3%, sodium allyl sulfonate 2%, surplus is iron.
The present invention also provides a kind of die casting preparation method of highlighted zinc alloy, comprises the following steps:
1) zinc, copper, iron, aluminium are put into vacuum melting furnace crucible, be evacuated to 8.5 × more than 10-2Pa, start to heat up, after temperature rises to 920-935 DEG C, stop vacuumizing and be filled with rare gas element to 5 × 104Pa in vacuum melting furnace; Then continue to be warming up to 1250-1300 DEG C, after zinc, dibenzenesulfonyl imines, iron, copper dissolve completely, start in zinc, copper, iron, aluminum alloy melt, be filled with rare gas element and stir 40-42 minute, aluminium alloy is cooled, obtains master alloy;
2) master alloy and other remaining ingredients are joined in vacuum melting furnace crucible, be evacuated to 9.2 × more than 10-2Pa, start to heat up, after temperature rises to 920-940 DEG C, stop vacuumizing and be filled with rare gas element to 4 × 104Pa in vacuum melting furnace; Then continue to be warming up to 1400-1450 DEG C, treat that alloy dissolves completely, after refining leaves standstill 40-42 minute, after inspection bath composition is qualified, namely obtain refining liquid;
3) after refining liquid being cooled to 720-730 DEG C, die casting is preheated in the mold cavity of 250-300 DEG C to passing through, the refining liquid melt flow of wherein filling when type starts is 0.4m/s, casting pressure is 75MPa, fill type rate more than 65% after, the melt flow improving refining liquid is 105MPa to 2.5m/s, casting pressure, terminates until fill type die casting;
4) thermal treatment: by die casting foundry goods under 450 DEG C of conditions after homogenizing 30-35h after shrend to room temperature, then be warming up to the ageing treatment that 170-175 DEG C is carried out 13-15h, obtain the zinc alloy of die casting.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (5)
1. the highlighted zinc alloy of die casting; it is characterized in that; be grouped into by the following one-tenth according to mass percent: zinc 25-35%, copper 10-20%, aluminium 5-15%, lanthanum 0.2-1%, chromium 0.1-0.9%, manganese 0.3-1.3%, nickel 0.2-0.6%, beryllium 0.1-0.8%, cadmium 0.1-0.8%, scandium 0.3-0.7%, dibenzenesulfonyl imines 1-5%, sodium allyl sulfonate 1-3%, surplus is iron.
2. the highlighted zinc alloy of die casting according to claim 1; it is characterized in that; be grouped into by the following one-tenth according to mass percent: zinc 28-32%, copper 12-18%, aluminium 8-12%, lanthanum 0.4-0.8%, chromium 0.3-0.6%, manganese 0.6-1%, nickel 0.3-0.5%, beryllium 0.3-0.6%, cadmium 0.3-0.6%, scandium 0.4-0.6%, dibenzenesulfonyl imines 2-4%, sodium allyl sulfonate 1.5-2.5%, surplus is iron.
3. the zinc alloy of die casting according to claim 2; it is characterized in that; be grouped into by the following one-tenth according to mass percent: zinc 30%, copper 16%, aluminium 10%, lanthanum 0.46%, chromium 0.5%, manganese 08%, nickel 0.4%, beryllium 0.4%, cadmium 0.3-0.6%, scandium 0.5%, dibenzenesulfonyl imines 3%, sodium allyl sulfonate 2%, surplus is iron.
4. the die casting preparation method for highlighted zinc alloy as described in as arbitrary in claim 1-3, is characterized in that, comprise the following steps:
1) zinc, copper, iron, aluminium are put into vacuum melting furnace crucible, be evacuated to 8.5 × 10
-2more than Pa, starts to heat up, and after temperature rises to 920-935 DEG C, stops vacuumizing and be filled with rare gas element to 5 × 10 in vacuum melting furnace
4pa; Then continue to be warming up to 1250-1300 DEG C, after zinc, dibenzenesulfonyl imines, iron, copper dissolve completely, start in zinc, copper, iron, aluminum alloy melt, be filled with rare gas element and stir 40-42 minute, aluminium alloy is cooled, obtains master alloy;
2) master alloy and other remaining ingredients are joined in vacuum melting furnace crucible, be evacuated to 9.2 × 10
-2more than Pa, starts to heat up, and after temperature rises to 920-940 DEG C, stops vacuumizing and be filled with rare gas element to 4 × 10 in vacuum melting furnace
4pa; Then continue to be warming up to 1400-1450 DEG C, treat that alloy dissolves completely, after refining leaves standstill 40-42 minute, after inspection bath composition is qualified, namely obtain refining liquid;
3) after refining liquid being cooled to 720-730 DEG C, die casting is preheated in the mold cavity of 250-300 DEG C to passing through, the refining liquid melt flow of wherein filling when type starts is 0.4m/s, casting pressure is 75MPa, fill type rate more than 65% after, the melt flow improving refining liquid is 105MPa to 2.5m/s, casting pressure, terminates until fill type die casting;
4) thermal treatment: by die casting foundry goods under 450 DEG C of conditions after homogenizing 30-35h after shrend to room temperature, then be warming up to the ageing treatment that 170-175 DEG C is carried out 13-15h, obtain the zinc alloy of die casting.
5. the die casting as described in as arbitrary in claim 1-3 is preparing the purposes in die casting with highlighted zinc alloy.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1336695A (en) * | 1971-02-19 | 1973-11-07 | Centre Rech Metallurgique | Zinc alloys |
| CN1363962A (en) * | 2001-12-26 | 2002-08-14 | 浙江大学 | Rare-earth alloys for hydrogen-bearing electrode and its preparing process |
| CN101404195A (en) * | 2006-11-17 | 2009-04-08 | 信越化学工业株式会社 | Method for preparing rare earth permanent magnet |
| CN102011029A (en) * | 2010-12-08 | 2011-04-13 | 宁波博威合金材料股份有限公司 | Zinc alloy for zipper tooth belt and preparation method of zipper tooth belt |
| CN104073686A (en) * | 2014-06-17 | 2014-10-01 | 宁波博威合金材料股份有限公司 | Riveted deformed low copper alloy material and application thereof |
-
2015
- 2015-12-11 CN CN201510912237.1A patent/CN105316556A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1336695A (en) * | 1971-02-19 | 1973-11-07 | Centre Rech Metallurgique | Zinc alloys |
| CN1363962A (en) * | 2001-12-26 | 2002-08-14 | 浙江大学 | Rare-earth alloys for hydrogen-bearing electrode and its preparing process |
| CN101404195A (en) * | 2006-11-17 | 2009-04-08 | 信越化学工业株式会社 | Method for preparing rare earth permanent magnet |
| CN102011029A (en) * | 2010-12-08 | 2011-04-13 | 宁波博威合金材料股份有限公司 | Zinc alloy for zipper tooth belt and preparation method of zipper tooth belt |
| CN104073686A (en) * | 2014-06-17 | 2014-10-01 | 宁波博威合金材料股份有限公司 | Riveted deformed low copper alloy material and application thereof |
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Application publication date: 20160210 |