CN106521262A - Material suitable for automobile component dies - Google Patents
Material suitable for automobile component dies Download PDFInfo
- Publication number
- CN106521262A CN106521262A CN201611091670.4A CN201611091670A CN106521262A CN 106521262 A CN106521262 A CN 106521262A CN 201611091670 A CN201611091670 A CN 201611091670A CN 106521262 A CN106521262 A CN 106521262A
- Authority
- CN
- China
- Prior art keywords
- mould
- molten metal
- auto parts
- magnalium
- injected
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2209—Selection of die materials
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
- C22C32/0063—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides based on SiC
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0084—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention belongs to the technical field of automobile components, and concretely relates to a material suitable for automobile component dies. The dies are made of magnesium and aluminum alloy, and the magnesium-aluminum alloy comprises, by mass, 2.3-4.9% of iron, 6.0-12.3% of magnesium, 0.12-0.22% of silver, 0.23-0.33% of tungsten, 0.13-0.25% of chromium, 0.09-0.43% of tin, 2.8-4.6% of zinc, 0.10-2.56% of silicon carbide, 0.09-0.25% of graphite, and the balance of aluminum. The material is used for solving the problem of easiness in early stage fracture caused by low plasticity and low toughness of present automobile component materials.
Description
Technical field
The invention belongs to technical field of automobile parts, specifically, is a kind of material suitable for auto parts and components mould
Material.
Background technology
Automobile is one of pillar industry of Chinese manufacturing, and national key special subjects target is exactly to promote automobile, ship, boat
Empty space flight, four field development of generating equipment.China's car aluminium alloy engine cylinder body, gear box casing etc. are large-scale, complicated, high
Life-span die casting at present can't autonomous production, rely primarily on import, such as a vapour Toyota, Tianjin Toyota, CR-V, weight
Celebrating Chang'an etc..The core technology of large-scale, complicated, long-life die casting die is monopolized by developed country, is become restriction China automobile and is sent out
The key factor that motivation critical component domesticizes and car replacement replacement speed is lifted.
At present, caused by the failure mode of China's die casting is heat fatigue cracking mostly.Die casting is often with left and right at a high speed
The red-hot molten metal contacts of fusing, and by heating repeatedly, cooling, working environment is extremely severe.Wherein, aluminum alloy die-casting die
Service condition it is more harsh, generally between one, with one speed press-in die cavity, pressure is about for the temperature of molten aluminium alloy
For the dwell time one, each injection interval time is about one, and cavity surface is subject to washing away repeatedly for high temperature and high speed aluminium liquid, is produced
The larger stress of life.For this purpose, die-casting die steel should have enough high temperature hardness and elevated temperature strength, i.e., high temper resistance is in work
Also subject to certain impulsive force and more serious erosion when making, it is necessary to which the wearability for having possessed and certain toughness are due to repeatedly
Rapid heat cycle and the alternating thermal stress that produces can make cavity surface produce crack performance, i.e. heat exhaustion, should have high heat resistanceheat resistant
, for larger-size hot-work die, to make whole cross section performance uniform, die-casting die steel is also for fatigue behaviour and oxidation resistance
Should have high quenching degree and less heat treatment deformation characteristic.Domestic main die casting die material have 4Cr5MoSiV1,
3Cr2W8V etc., most-often used 4Cr5MoSiV1 steel have higher intensity, temper resistance, and good toughness and heat resistanceheat resistant are tired
Lao Xing, but the heat resistance more than 600 DEG C is not good enough, is not suitable for die casting high-melting-point alloy, and the heat conductivity of steel and thermal fatigue resistance energy
Power is poor, and plasticity and toughness are low, is susceptible to early fracture.Therefore, with independent intellectual property right, high-quality, high performance die casting are developed
Mould has very urgent realistic meaning.
The content of the invention
The present invention seeks to a kind of material and processing method suitable for auto parts and components mould has been aimed to provide, for solving
Certainly auto parts and components mold materials plasticity and toughness are low at present, are susceptible to the problem of early fracture.
To realize above-mentioned technical purpose, the technical solution used in the present invention is as follows：
A kind of material of auto parts and components mould, mould are prepared using magnalium, and the magnalium includes following matter
The component of amount ratio, ferrum 2.3-4.9%, magnesium 6.0-12.3%, silver-colored 0.12-0.22%, tungsten 0.23-0.33%, chromium 0.13-
0.25%, stannum 0.09-0.43%, zinc 2.8-4.6%, carborundum 0.10-2.56%, graphite 0.09-0.25%, balance of aluminum.
Further limit, the processing method of the material is as follows：Magnalium raw material is placed in burning stove, in indifferent gas
Under body protection, 700 DEG C are heated to, speed of agitator is 1500rpm, makes alloy raw material liquefy to form molten metal；Stir and shake gold
Category liquid, discharges the gas in molten metal；Matched moulds：By molten metal as mould in, until mold parting surface gap be less than 20mm,
Stop matched moulds；Oxygen is injected in gap, continues matched moulds, mould is closed completely；Liquid material is injected in barrel, be then injected into
Oxygen, die casting；Foundry goods is made annealing treatment.
Further limit, the extrusion process condition is：System pressure：23Mpa, spray time 7s, cast temperature：700
DEG C, gate velocity is less than 0.7m/s, and die casting time of staying in the mould is 6s, and foundry goods is taken out in die sinking after cooling shaping.
Further limit, the annealing process was cooled to 200 DEG C for three hours, be incubated 8h, air cooling of then coming out of the stove.
Auto parts and components shell body die casting die material and its processing method that the present invention is provided, are added with mold materials
Various hybrid metals, with good intensity, toughness and high temperature resistance thermal fatigue property, energy bearing temperature fusion, suitably in high temperature
Lower long-term work, and have that quenching degree is high, dimensional stability is strong and processability is good, heat-resisting crack performance is strong, it is adapted to large-scale, structure
Complexity, precision, the high-performance compression mod of long life requirement, extrusion die etc..
Specific embodiment
In order that those skilled in the art may be better understood the present invention, with reference to embodiment to the technology of the present invention
Scheme is further illustrated.
A kind of material of auto parts and components mould, mould are prepared using magnalium, and magnalium includes following mass ratio
Component, ferrum 2.3-4.9%, magnesium 6.0-12.3%, silver-colored 0.12-0.22%, tungsten 0.23-0.33%, chromium 0.13-0.25%, stannum
0.09-0.43%, zinc 2.8-4.6%, carborundum 0.10-2.56%, graphite 0.09-0.25%, balance of aluminum.
It is preferred that the processing method of the material, as follows：Magnalium raw material is placed in burning stove, under inert gas shielding,
700 DEG C are heated to, speed of agitator is 1500rpm, make alloy raw material liquefy to form molten metal；Molten metal is stirred and shaken, is discharged
Gas in molten metal；Matched moulds：By molten metal as mould in, until mold parting surface gap be less than 20mm, stop matched moulds；
Oxygen is injected in gap, continues matched moulds, mould is closed completely；Liquid material is injected in barrel, be then injected into oxygen, press
Casting；Foundry goods is made annealing treatment.In fact, can select as the case may be to consider.
It is preferred that the extrusion process condition is：System pressure：23Mpa, spray time 7s, cast temperature：700 DEG C, ingate
Speed is less than 0.7m/s, and die casting time of staying in the mould is 6s, and foundry goods is taken out in die sinking after cooling shaping.In fact, can basis
Concrete condition considers.
It is preferred that the annealing process was cooled to 200 DEG C for three hours, 8h, air cooling of then coming out of the stove are incubated.In fact, can be according to tool
Body situation considers.
Embodiment 1
A kind of material of auto parts and components mould, mould are prepared using magnalium, and magnalium includes following mass ratio
Component, ferrum 2.3%, magnesium 6.0%, silver 0.12%, tungsten 0.23%, chromium 0.13%, stannum 0.09%, zinc 2.8%, carborundum
0.10%, graphite 0.09%, balance of aluminum.
Embodiment 2
A kind of material of auto parts and components mould, mould are prepared using magnalium, and magnalium includes following mass ratio
Component, ferrum 4.9%, magnesium 12.3%, silver 0.22%, tungsten 0.33%, chromium 0.25%, stannum 0.43%, zinc 4.6%, carborundum
2.56%, graphite 0.25%, balance of aluminum.
Magnalium raw material is placed in burning stove, under inert gas shielding, 700 DEG C is heated to, speed of agitator is
1500rpm, makes alloy raw material liquefy to form molten metal；Molten metal is stirred and shaken, the gas in molten metal is discharged；Matched moulds：Will
During molten metal is as mould, until mold parting surface gap is less than 20mm, stop matched moulds；Oxygen is injected in gap, is continued
Matched moulds, mould are closed completely；Liquid material is injected in barrel, be then injected into oxygen, die casting；Foundry goods is made annealing treatment.
Above a kind of material suitable for auto parts and components mould that the present invention is provided is described in detail.It is concrete real
The explanation for applying example is only intended to help and understands the method for the present invention and its core concept.It should be pointed out that for the art
For those of ordinary skill, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention,
These improve and modification is also fallen in the protection domain of the claims in the present invention.
Claims (4)
1. a kind of material of auto parts and components mould, it is characterised in that mould is prepared using magnalium, the magnalium bag
Include the component of following mass ratio, ferrum 2.3-4.9%, magnesium 6.0-12.3%, silver-colored 0.12-0.22%, tungsten 0.23-0.33%, chromium
0.13-0.25%, stannum 0.09-0.43%, zinc 2.8-4.6%, carborundum 0.10-2.56%, graphite 0.09-0.25%, surplus
For aluminum.
2. the material of a kind of auto parts and components mould according to claim 1, it is characterised in that：The processing side of the material
Method is as follows：Magnalium raw material is placed in burning stove, under inert gas shielding, 700 DEG C is heated to, speed of agitator is
1500rpm, makes alloy raw material liquefy to form molten metal；Molten metal is stirred and shaken, the gas in molten metal is discharged；Matched moulds：Will
During molten metal is as mould, until mold parting surface gap is less than 20mm, stop matched moulds；Oxygen is injected in gap, is continued
Matched moulds, mould are closed completely；Liquid material is injected in barrel, be then injected into oxygen, die casting；Foundry goods is made annealing treatment.
3. the material of a kind of auto parts and components mould according to claim 2, it is characterised in that：The extrusion process condition
For：System pressure：23Mpa, spray time 7s, cast temperature：700 DEG C, gate velocity is less than 0.7m/s, and die casting is in mould
The time of staying is 6s, and foundry goods is taken out in die sinking after cooling shaping.
4. the material of a kind of auto parts and components mould according to claim 3, it is characterised in that：The annealing process is three
Hour is cooled to 200 DEG C, is incubated 8h, air cooling of then coming out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091670.4A CN106521262A (en) | 2016-12-01 | 2016-12-01 | Material suitable for automobile component dies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091670.4A CN106521262A (en) | 2016-12-01 | 2016-12-01 | Material suitable for automobile component dies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106521262A true CN106521262A (en) | 2017-03-22 |
Family
ID=58354323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611091670.4A Withdrawn CN106521262A (en) | 2016-12-01 | 2016-12-01 | Material suitable for automobile component dies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106521262A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107955894A (en) * | 2017-12-13 | 2018-04-24 | 苏州浩焱精密模具有限公司 | A kind of mould high-strength aluminium-magnesium alloy material |
| CN110551929A (en) * | 2019-08-30 | 2019-12-10 | 金榀精密工业(苏州)有限公司 | automobile part die-casting production process |
-
2016
- 2016-12-01 CN CN201611091670.4A patent/CN106521262A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107955894A (en) * | 2017-12-13 | 2018-04-24 | 苏州浩焱精密模具有限公司 | A kind of mould high-strength aluminium-magnesium alloy material |
| CN110551929A (en) * | 2019-08-30 | 2019-12-10 | 金榀精密工业(苏州)有限公司 | automobile part die-casting production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170322 |