CN105925860A - Alloy for automobile seat, preparation method of alloy and automobile seat - Google Patents
Alloy for automobile seat, preparation method of alloy and automobile seat Download PDFInfo
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- CN105925860A CN105925860A CN201610408341.1A CN201610408341A CN105925860A CN 105925860 A CN105925860 A CN 105925860A CN 201610408341 A CN201610408341 A CN 201610408341A CN 105925860 A CN105925860 A CN 105925860A
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- alloy
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- magnesium
- molten soup
- automotive seat
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/06—Alloys based on magnesium with a rare earth metal as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses an alloy for an automobile seat and the automobile seat. The alloy is characterized by being prepared from the following components in percentage by weight: 0.15 to 0.45 weight percent of zirconium, 0.01 to 0.15 weight percent of calcium, 0.3 to 1 weight percent of cerium, 0.03 to 0.7 weight percent of tungsten, 0.3 to 1.5 weight percent of titanium, the balance of magnesium and inevitable impurities. The magnesium alloy provided by the invention has the advantages of nonflammability, good corrosion resistance, and high tensile strength and yield strength, and can be widely applied to the automobile seat, thereby reducing the mass of the automobile seat.
Description
Technical field
The present invention relates to a kind of alloy for automotive seat and preparation method thereof and automotive seat.
Background technology
Along with progress and the high speed development of auto industry of society, people are to life and the concern of environmental protection
Spending more and more higher, the outer bus seat of Now Domestic designs all based on " safe and environment-friendly, energy-conservation "
Purport, lightweight, modularization become the Main Trends of The Development of bus seat design.Passively pacify at automobile
In total system, seat has the most direct relation with the life of occupant, and particularly motor bus seat is more
Can not ignore, bus seat is no longer the most attractive in appearance and takes needs, but collection human engineering
The system engineering product that, comfortableness, security are integrated, in passenger vehicle car load safe practice,
Occupy critical role.
Traditional chair framework material major part uses carbon steel, and carbon steel has the big grade of density and lacks
Point, can increase the oil consumption of automobile.Thus, the conventional lighter magnesium alloy of people substitutes carbon element
Steel, but magnesium alloy have inflammable, corrosion-resistant, tensile strength are low and yield strength is poor etc.
Problem.
Therefore, people need a kind of magnesium alloy that can be used for automotive seat badly.
Summary of the invention
It is an object of the invention to provide a kind of alloy for automotive seat and automotive seat, this magnesium
Alloy is nonflammable, good corrosion resistance, tensile strength high and yield strength is high, also discloses simultaneously
The preparation method of this alloy.
For achieving the above object, a kind of alloy for automotive seat of the present invention, by weight, institute
State alloy by 0.15-0.45 weight the zirconium of %, 0.01-0.15 weight the calcium of %, 0.3-1 weight % cerium,
The tungsten of 0.03-0.7, the 0.3-1.5 weight titanium of %, the magnesium of surplus and inevitable impurity composition.
Preferably, by weight, described alloy is by the 0.25-0.40 weight zirconium of %, 0.05-0.10 weight %
Calcium, 0.3-0.8 weight the cerium of %, the tungsten of 0.05-0.4,0.4-1 weight the titanium of %, the magnesium of surplus and
Inevitably impurity composition.
The present invention also provides for a kind of automotive seat, and described automotive seat includes claim 1 or 2 institute
The alloy stated.
Invention additionally discloses the preparation method of above-mentioned alloy, comprise the following steps:
Step 1: under inert gas shielding, under conditions of magnesium metal is heated to 980-1020 DEG C
Melted；
Step 2: zirconium, calcium, cerium, tungsten, titanium are joined in the melted magnesium of step 1, insulation
30-40min；
Step 3: the molten soup of alloy step 2 obtained is cooled to 800-810 DEG C, insulation
20-30min；
Step 4: the molten soup of alloy step 3 obtained is cooled to 680-690 DEG C, insulation
20-30min；
Step 5: the molten soup of alloy step 4 obtained is warming up to 760-770 DEG C, insulation
20-30min；
Step 6: the alloy molten soup moulding by casting that step 5 is obtained.
Above-mentioned in the preparation method of the alloy of automotive seat, comprise the following steps:
Step 1: under inert gas shielding, under conditions of magnesium metal is heated to 990-1000 DEG C
Melted；
Step 2: zirconium, calcium, cerium, tungsten, titanium are joined in the melted magnesium of step 1, insulation
35min；
Step 3: the molten soup of alloy step 2 obtained is cooled to 800-810 DEG C, is incubated 25min；
Step 4: the molten soup of alloy step 3 obtained is cooled to 680-690 DEG C, is incubated 25min；
Step 5: the molten soup of alloy step 4 obtained is warming up to 760-770 DEG C, is incubated 25min；
Step 6: the alloy molten soup moulding by casting that step 5 is obtained.
The inventive method has the advantage that
The magnesium alloy that the present invention provides is nonflammable, good corrosion resistance, tensile strength high and surrender is strong
Degree height, it is possible to be widely used in automotive seat, thus reduce the quality of automotive seat.
Detailed description of the invention
Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
Zirconium solubility in magnesium is the lowest, and the solubility when Peritectic Temperature is 0.58%, typically exists
Magnesium matrix is all presented in solid solution atom.Peritectic reaction is there is in Mg Yu Zr when 645 DEG C
Generate the α-Zr particle of a large amount of disperse, this phase can as the heterogeneous nuclei of α-Mg, thus
Cause crystal grain to refine, improve uniformity and the stability of performance of tissue, thus magnesium alloy is provided
Yield strength.
Ca suppression magnesium and the grain growth of alloy thereof.Research shows: add in pure magnesium and alloy thereof
A small amount of Ca, can produce constitutional supercooling, in addition in the diffusion layer in the solid-liquid interface forward position of crystallization
The diffusion of solute element Ca is relatively slow and limits the growth of crystal grain, causes grain growth speed to reduce.
Additionally, at forward position, interface in diffusion layer, the nucleating agent in constitutional supercooling district is likely lived
Change, cause further forming core and crystal grain thinning.Add Ca and promote the reason of Zr thinning effect then
Be that Ca can promote Zr dissolving in the magnesium alloy and diffusion, due to Zr has in the magnesium alloy can
Can be wrapped by the MgO oxide-film in melt and difficulty is dissolved in melt, but add in magnesium alloy
Ca can generate CaO with MgO reaction, owing to the standard free energy of CaO is less than MgO, thus inhibits
The generation of MgO oxide-film so that Zr can effectively dissolve in magnesium alloy fused mass, also just because of Ca
Improve the interface wet ability dissolved between Zr and liquid phase so that Zr is easily made into nucleus and notable
Add the effect of crystal grain thinning, improve the tensile strength of magnesium alloy.
Cerium, as the refining agent of alloy, can purify magnesium alloy liquid pressure, and the addition of tungsten can improve magnesium
The burning-point of alloy, the addition of titanium can improve the corrosion resistance of magnesium alloy.
By embodiment the present invention will be described below, but the present invention will be the most therefore and by any
Limit.
Embodiment 1
Step 1: under inert gas shielding, molten under conditions of magnesium metal is heated to 980-990 DEG C
Melt；
Step 2: zirconium, calcium, cerium, tungsten, titanium are joined in the melted magnesium of step 1, insulation
30min；
Step 3: the molten soup of alloy step 2 obtained is cooled to 800-810 DEG C, is incubated 30min；
Step 4: the molten soup of alloy step 3 obtained is cooled to 680-690 DEG C, is incubated 20min；
Step 5: the molten soup of alloy step 4 obtained is warming up to 760-770 DEG C, is incubated 30min；
Step 6: the alloy molten soup moulding by casting that step 5 is obtained.
Each raw material components is shown in Table 1, and performance is shown in Table 2.
Embodiment 2
Step 1: under inert gas shielding, under conditions of magnesium metal is heated to 1000-1020 DEG C
Melted；
Step 2: zirconium, calcium, cerium, tungsten, titanium are joined in the melted magnesium of step 1, insulation
30-40min；
Step 3: the molten soup of alloy step 2 obtained is cooled to 800-810 DEG C, is incubated 30min；
Step 4: the molten soup of alloy step 3 obtained is cooled to 680-690 DEG C, is incubated 20min；
Step 5: the molten soup of alloy step 4 obtained is warming up to 760-770 DEG C, is incubated 30min；
Step 6: the alloy molten soup moulding by casting that step 5 is obtained.
Each raw material components is shown in Table 1, and performance is shown in Table 2.
Embodiment 3
Comprise the following steps:
Step 1: under inert gas shielding, under conditions of magnesium metal is heated to 990-1000 DEG C
Melted；
Step 2: zirconium, calcium, cerium, tungsten, titanium are joined in the melted magnesium of step 1, insulation
35min；
Step 3: the molten soup of alloy step 2 obtained is cooled to 800-810 DEG C, is incubated 25min；
Step 4: the molten soup of alloy step 3 obtained is cooled to 680-690 DEG C, is incubated 25min；
Step 5: the molten soup of alloy step 4 obtained is warming up to 760-770 DEG C, is incubated 25min；
Step 6: the alloy molten soup moulding by casting that step 5 is obtained.
Each raw material components is shown in Table 1, and performance is shown in Table 2.
Table 1
| Composition, weight % | Zirconium | Calcium | Cerium | Tungsten | Titanium | Impurity |
| Magnesium alloy 1 | 0.15 | 0.05 | 0.3 | 0.04 | 0.12 | ＜ 0.03 |
| Magnesium alloy 2 | 0.30 | 0.13 | 0.5 | 0.3 | 0.1 | ＜ 0.03 |
| Magnesium alloy 3 | 0.45 | 0.03 | 1 | 0.6 | 0.3 | ＜ 0.03 |
Table 2
From the data of table 2 it can be seen that the magnesium alloy of the present invention is nonflammable, good corrosion resistance, anti-
Tensile strength is high and yield strength is high.
Embodiment 4
Magnesium alloy 1 of the present invention and carbon steel Q235 (common steel) are used no for same seat
Same bi-material carries out the calculating of various operating mode and compares, as shown in table 3:
The 3 two kinds of alloys of table result of calculation under each operating mode
Through calculating, magnesium alloy chair framework weight ratio steel is the lightest by 77%, is less than the 1/3 of steel.Vapour
Car quality size has important impact to the consumption of its energy, and quality often reduces 100kg, and every hundred
Gas mileage can reduce 0.7L.Learned by China's report official website, hall, China's motor bus in 2015
Cumulative sale amount be about 8.4 ten thousand, it is assumed that averagely each passenger vehicle install 40 chair frameworks, if
Replacing carbon steel with magnesium alloy, the oil consumption of minimizing is as shown in table 4 below:
Table 4 oil consumption decrement computational chart
As can be seen here, on the premise of ensureing each side mechanical property, the matter of automobile is significantly alleviated
Amount, save the substantial amounts of energy, the modern society of anxiety such for the energy, this will be have great
Meaning.
Although, the most the present invention has been made detailed with general explanation and specific embodiment
Describing, but on the basis of the present invention, can make some modifications or improvements it, this is to this area skill
It is apparent from for art personnel.Therefore, done without departing from theon the basis of the spirit of the present invention
These modifications or improvements, belong to the scope of protection of present invention.
Claims (5)
1. the alloy for automotive seat, it is characterised in that by weight, described alloy
By the 0.15-0.45 weight zirconium of %, the 0.01-0.15 weight calcium of %, 0.3-1 the weight cerium of %, 0.03-0.7
Tungsten, the 0.3-1.5 weight titanium of %, the magnesium of surplus and inevitable impurity composition.
Alloy the most according to claim 1, it is characterised in that by weight, described alloy
By 0.25-0.40 weight the zirconium of %, 0.05-0.10 weight the calcium of %, 0.3-0.8 weight % cerium,
The tungsten of 0.05-0.4, the 0.4-1 weight titanium of %, the magnesium of surplus and inevitable impurity composition.
3. an automotive seat, it is characterised in that described automotive seat includes claim 1 or 2
Described alloy.
4. a preparation method for the alloy for automotive seat as described in 1 or 2, its feature exists
In, comprise the following steps:
Step 1: under inert gas shielding, under conditions of magnesium metal is heated to 980-1020 DEG C
Melted；
Step 2: zirconium, calcium, cerium, tungsten, titanium are joined in the melted magnesium of step 1, insulation
30-40min；
Step 3: the molten soup of alloy step 2 obtained is cooled to 800-810 DEG C, insulation
20-30min；
Step 4: the molten soup of alloy step 3 obtained is cooled to 680-690 DEG C, insulation
20-30min；
Step 5: the molten soup of alloy step 4 obtained is warming up to 760-770 DEG C, insulation
20-30min；
Step 6: the alloy molten soup moulding by casting that step 5 is obtained.
The preparation method of the alloy for automotive seat the most according to claim 4, its feature
It is, comprises the following steps:
Step 1: under inert gas shielding, under conditions of magnesium metal is heated to 990-1000 DEG C
Melted；
Step 2: zirconium, calcium, cerium, tungsten, titanium are joined in the melted magnesium of step 1, insulation
35min；
Step 3: the molten soup of alloy step 2 obtained is cooled to 800-810 DEG C, is incubated 25min；
Step 4: the molten soup of alloy step 3 obtained is cooled to 680-690 DEG C, is incubated 25min；
Step 5: the molten soup of alloy step 4 obtained is warming up to 760-770 DEG C, is incubated 25min；
Step 6: the alloy molten soup moulding by casting that step 5 is obtained.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610408341.1A CN105925860B (en) | 2016-06-10 | 2016-06-10 | A kind of alloy for automotive seat and preparation method thereof and automotive seat |
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| CN201610408341.1A CN105925860B (en) | 2016-06-10 | 2016-06-10 | A kind of alloy for automotive seat and preparation method thereof and automotive seat |
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| CN105925860A true CN105925860A (en) | 2016-09-07 |
| CN105925860B CN105925860B (en) | 2018-02-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108893667A (en) * | 2018-06-07 | 2018-11-27 | 北京华北轻合金有限公司 | The preparation method of the magnesium alloy auto safety seat of anti-impact force |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB560108A (en) * | 1942-03-03 | 1944-03-21 | Tennyson Fraser Bradbury | Magnesium alloy |
| CN1316537A (en) * | 2001-03-23 | 2001-10-10 | 天津南开戈德集团有限公司 | Mg-base hydrogen-bearing alloy material and its preparing process and application |
| CN104372222A (en) * | 2014-10-31 | 2015-02-25 | 无锡贺邦金属制品有限公司 | Corrosion-resistant and heat-resistant magnesium alloy |
| CN104831136A (en) * | 2015-04-15 | 2015-08-12 | 苏州维泰生物技术有限公司 | Medical magnesium-based alloy material and preparation method thereof |
-
2016
- 2016-06-10 CN CN201610408341.1A patent/CN105925860B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB560108A (en) * | 1942-03-03 | 1944-03-21 | Tennyson Fraser Bradbury | Magnesium alloy |
| CN1316537A (en) * | 2001-03-23 | 2001-10-10 | 天津南开戈德集团有限公司 | Mg-base hydrogen-bearing alloy material and its preparing process and application |
| CN104372222A (en) * | 2014-10-31 | 2015-02-25 | 无锡贺邦金属制品有限公司 | Corrosion-resistant and heat-resistant magnesium alloy |
| CN104831136A (en) * | 2015-04-15 | 2015-08-12 | 苏州维泰生物技术有限公司 | Medical magnesium-based alloy material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李明照 等: "《镁冶炼及镁合金熔炼工艺》", 30 August 2012 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108893667A (en) * | 2018-06-07 | 2018-11-27 | 北京华北轻合金有限公司 | The preparation method of the magnesium alloy auto safety seat of anti-impact force |
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| CN105925860B (en) | 2018-02-09 |
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