CN106493339A - A kind of method for producing aluminium alloy spring base with Horizontal type extrusion casting machine - Google Patents
A kind of method for producing aluminium alloy spring base with Horizontal type extrusion casting machine Download PDFInfo
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- CN106493339A CN106493339A CN201610976636.9A CN201610976636A CN106493339A CN 106493339 A CN106493339 A CN 106493339A CN 201610976636 A CN201610976636 A CN 201610976636A CN 106493339 A CN106493339 A CN 106493339A
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- aluminium alloy
- spring base
- alloy spring
- product
- casting machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of method for producing aluminium alloy spring base with Horizontal type extrusion casting machine, wherein, the production method is specific as follows：(1) temperature of aluminum liquid (2) briquetting pressure (3) shot position (4) filling velocity.The present invention has and meets that performance requirement and reliability be high and easy for installation and the high effect of utilization rate.
Description
Technical field
The present invention relates to aluminium alloy car spring seat material extrusion casint forming technique field, more particularly to a kind of with horizontal
The method that extrusion casting machine produces aluminium alloy spring base.
Background technology
Spring base is the core part of automobile shock, it be located at vehicle front shock absorbing apparatus, with spring, hanging axis, revoke phase
Even, the device is relaxed in the elastic deformation of above-below direction and the effect of vibroshock by central spring and is decayed vehicle Vertical Square
To vibration.Under motoring condition, it subjects the changeable impact endurance test shock load of central spring.Spring base safe and reliable
Property directly affect traveling reliability and the intransit steady, level of comfort of passenger of car load, produce in auto parts and components
In have critical role.Belong to automobile bottom diskware, safety member, spring base dominant failure mode is fatigue rupture.Therefore to automobile
The mechanical property requirements of spring base are very high.Orthodox car shock mitigation system, spring tray are formed by steel plate punched, are welded on wheel shaft
Upper as spring base.Existing automobile production spring tray is produced as steel plate punched, is welded on wheel shaft, while also needing to coordinate
Damping spring, buffering apron etc..At present, the subject matter faced by press-working spring pallet production is：The structure install loaded down with trivial details, match somebody with somebody
Part performance is inconsistent, be welded with risk of breakage.As new-energy automobile develops, automotive light weight technology is imperative, in order to improve me
State's auto parts product innovation capability and independent brand automobile competitiveness, need badly realize the industrialization of high performance automobile spring spring abutment with
Sizable application.
Content of the invention
In view of the above problems, it is an object of the invention to provide one kind is in addition to performance requirement is met, reliability is provided simultaneously with
The production method of the high aluminium alloy spring base of high, easy for installation and utilization rate.
For achieving the above object, a kind of side for producing aluminium alloy spring base with Horizontal type extrusion casting machine that the present invention is provided
Method, the production method are specific as follows：(1) temperature of aluminum liquid, selects the pouring temperature of aluminum alloy melt mainly according to aluminium alloy spring base
Product wall thickness and complexity are determining；Secondly the characteristic with reference to alloy, filling velocity, room temperature and mold temperature is also needed comprehensively to examine
Consider；(2) briquetting pressure, the setting of die mould pressure directly influence properties of product.When pressure setting is too low, product occurs contracting
Hole, the defect such as loose；When pressure setting is too high, press clamp force need to be increased, affect die life, the life-span of press.(3)
Shot position, the calculating of low-speed position and filling velocity position according to punch diameter and can pour into aluminium alloy weight, obtain position
Height value, refer to below equation：
H：Poured weights aluminium alloy height mm；
Wt：Poured weights g；
D：Punch diameter mm；
2.5：Aluminium liquid density g/cm3；
(4) filling velocity, the too high aluminium liquid of speed easily produce volume gas during filling, through Overheating Treatment after, product
Surface occurs bubble；Simultaneously hypertonia, aluminium liquid can reduce die life to the erosion of mold cavity；For preventing inside product
Produce volume gas, owe casting defect, need comprehensive product type, structure, gating proportion etc. to carry out calculating filling velocity, and according to actual production
Situation is finely adjusted.Below equation calculating refer to by cast gate injection speed：
In extrusion casint embodiment, 700 720 DEG C of the pouring temperature of aluminum alloy melt；The first switching point of filling velocity
(at 20mm), the second switching point (at 86mm), the 3rd switching point (at 200mm) speed are the 200mm/ seconds, the 4th switching point
(at 210mm), the 5th switching point (at 245mm) speed are the 70mm/ seconds；Supercharging valve opening 50-60%；Briquetting pressure is
100MPa；Mold temperature is controlled at 180-230 DEG C.
Product is to obtain excellent performance to be through T6 heat treatments, heat treatment parameter：It is heated to 535 DEG C and is incubated 5 hours；?
Quench within 15 seconds；It is put into after quenching in 150 DEG C of holding furnaces, is incubated 4 hours, air cooling of coming out of the stove.
In embodiments, the mould of aluminium alloy spring base product includes pouring section and overflow portion；Described cast
It is partly comprised in material handle, the ingate being provided with material handle and the runner being provided with material handle；Described pouring section utilizes liquid
Stream flow regime and pressure distribution, smoothly fill to aluminium alloy spring base product and consecutive solidification.
Wall thickness of the thickness of ingate more than aluminium alloy spring base product.
Running channel opens up position in the middle part of aluminium alloy spring base product, and aluminium alloy spring base product thickness is in 10mm-15mm, nothing
Cross gate need to be set；Ingate sectional dimension is φ 35mm, and ingate and sprue length (workpiece is to material handle length) are 35
40mm；The a diameter of 80mm of material cake, material handle thickness are 30 40mm.
Present invention has the advantages that, aluminium alloy extrusion casting is changed to by existing steel plate punched weldment, to realize spring
The lightweight of seat product, high-performance and high reliability.With the spring base body sampling performance indications for producing of the invention it is：Tension is strong
Degree >=300Mpa, yield strength >=220Mpa, elongation after fracture >=8%, this are common die casting, low pressure casting, counter-pressure casting work
Skill is beyond one's reach performance.Replace conventional cast, low pressure casting and part to forge with extrusion casint, part reliability is improved to reach
Property, the precision of blank is improved, allowance is reduced, raw materials consumption is reduced, the purpose of reduces cost is its inexorable trend.Realize
Not only the effect for meeting performance requirement but also having reliability, easy for installation and utilization rate high.
Description of the drawings
Fig. 1 is the structural representation of foundry goods tree of the present invention；
Fig. 2 is the structural representation of core-pulling slide block of the present invention.
Specific embodiment
Below invention is described in further detail.
A kind of method for producing aluminium alloy spring base with Horizontal type extrusion casting machine, wherein, the production method is specific as follows：
(1) 7 temperature of aluminium liquid, selects the pouring temperature of aluminum alloy melt mainly according to aluminium alloy spring base product wall thickness and complexity come really
Fixed；Secondly the characteristic with reference to alloy, filling velocity, room temperature and mold temperature is also needed to consider；(2) briquetting pressure, die mould pressure
The setting of power directly influences properties of product；When pressure setting is too low, product occurs the defects such as shrinkage cavity and porosity；Work as pressure
Setting is too high, need to increase press clamp force, affects die life, affects the press life-span.(3) shot position, low-speed position
And the calculating of filling velocity position, according to punch diameter and aluminium alloy weight can be poured into, obtain position height value, refer to following
Formula：
H：Poured weights aluminium alloy height mm；
Wt：Poured weights g；
D：Punch diameter mm；
2.5：7 density g/cm of aluminium liquid3；
(4) filling velocity, for preventing from producing volume gas inside product, owing casting defect, needs comprehensive product type, structure, cast gate
Than etc. carry out calculating filling velocity, and be finely adjusted according to practical condition.Following public affairs refer to by cast gate injection speed
Formula is calculated：
700 720 DEG C of the pouring temperature of aluminum alloy melt；The first switching point of filling velocity (at 20mm), the second switching point
(at 86mm), the 3rd switching point (at 200mm) speed are the 200mm/ seconds, the 4th switching point (at 210mm), the 5th switching point
(at 245mm) speed is the 70mm/ seconds；Supercharging valve opening 50-60%；Briquetting pressure is 100MPa；Mold temperature is controlled in 180-
230℃.Product heat treatment parameter after shaping is：It is heated to 535 DEG C and is incubated 5 hours；Quenched within 15 seconds；It is put into after quenching
In 150 DEG C of holding furnaces, 4 hours are incubated, air cooling of coming out of the stove.The mould of aluminium alloy spring base product includes pouring section and overflow part
Point；Described pouring section is included in material handle 5, the ingate 3 being provided with material handle 5 and the runner being provided with material handle 5；Described
Pouring section using fluid flow state and pressure distribution, to aluminium alloy spring base product smoothly filling and consecutive solidification.Interior
3 design packet of cast gate is containing contents such as position, shape, sizes.The thickness of ingate 3 should be more than the wall thickness of product, it is to avoid produce and owe
Casting, cold shut or the defect such as loose.The position of ingate 3 is considered as the planform of product, contraction distortion, alloy kind in design
The factor of the aspects such as class, extrusion casint machine equipment and foundry goods 2 performance to be reached, coordinates using mold flow analysis software, point
The phenomenons such as the flow regime during analysis stream filling die cavity of metal aluminium liquid 7, the volume gas being likely to occur in stowing operation, turbulent flow.Also simultaneously
Need reasonable Arrangement Exhausting System 1.
(5) core-pulling slide block 6, the hole for having φ 53 in the middle part of product need to cast out, and be provided with core-pulling device in die top, by core pulling
Rod is designed to 3 degree of drafting angles, and this taper contributes to feeding under the smooth filling of liquid stream and pressure, it is to avoid product produce loose,
Shrinkage cavity defect, can meet design requirement again.
Core-pulling slide block overall dimensions：145mm × 180mm, hydraulic core_pulling cylinder diameter are φ 100mm；Slide block is resistance to using H13
Hot die steel material, need to be through overall vacuum quenching plus surfaces nitrided process.
According to product shape, running gate system has only opened up sprue and ingate 3, and running channel is located at aluminium alloy spring base product
Middle part, 3 sectional dimension of ingate are φ 35mm, thick more than the arm of aluminium alloy spring base product.Ingate 3 and sprue length
(workpiece is to material 5 length of handle) is 35 40mm；The a diameter of Φ 80mm of material cake, 5 thickness of material handle are 30 40mm.
The present invention can produce qualified aluminium alloy spring base in using Horizontal type extrusion casting machine implementation process.Specifically
Embodiment is：Mould is properly attached on extrusion casting machine, the cooperation between mould and equipment is adjusted, is connected cooling water
Pipe；Set technological parameter；Mould is preheated using die heater, after mould is preheated, extrusion casting machine is started working, one
As front 4 foundry goods be used for adjusting mold temperature, pressurizer need not be opened, when mold temperature is in 180-230 DEG C, by given
Parameter proceeds by normal production.
Above-described is only some embodiments of the present invention.Without departing from the concept of the premise of the invention, also
Can make certain adjustments and improvements, but these belong to protection scope of the present invention.
Claims (6)
1. a kind of with Horizontal type extrusion casting machine produce aluminium alloy spring base method, wherein, the production method is specific as follows：
(1) temperature of aluminum liquid, selects the pouring temperature of aluminum alloy melt mainly according to aluminium alloy spring base product wall thickness and complexity
To determine；Secondly the characteristic with reference to alloy, filling velocity, room temperature and mold temperature is also needed to consider；
(2) can briquetting pressure, the setting of die mould pressure directly influence product and shape；When pressure setting is too low, product holds
Easily occur owing casting, cold shut defect；When pressure setting is too high, aluminium liquid easily produces volume gas during filling, through overheated place
After reason, article surface occurs bubble；Simultaneously hypertonia, aluminium liquid can reduce die life to the erosion of mold cavity；
(3) shot position, the calculating of low-speed position and filling velocity position according to punch diameter and can pour into aluminium alloy weight,
Position height value is obtained, below equation is refer to：
H：Poured weights aluminium alloy height mm；
Wt：Poured weights g；
D：Punch diameter mm；
2.5：Aluminium liquid density g/cm3；
(4) filling velocity, for preventing from producing volume gas inside product, owing casting defect, needs comprehensive product type, structure, gating proportion etc.
Calculating filling velocity is carried out, and is finely adjusted according to practical condition.Below equation meter refer to by cast gate injection speed
Calculate：
K：Gating proportion,
2. a kind of method for producing aluminium alloy spring base with Horizontal type extrusion casting machine according to claim 1, its feature exists
In 700 720 DEG C of the pouring temperature of the aluminum alloy melt；The first switching point of filling velocity (at 20mm), the second switching point
(at 86mm), the 3rd switching point (at 200mm) speed are the 200mm/ seconds, the 4th switching point (at 210mm), the 5th switching point
(at 245mm) speed is the 70mm/ seconds；Supercharging valve opening 50-60%；Briquetting pressure is 100MPa；Mold temperature is controlled in 180-
200℃.
3. a kind of method for producing aluminium alloy spring base with Horizontal type extrusion casting machine according to claim 2, its feature exists
In the heat treatment parameter of the molded article is incubated 5 hours for being heated to 535 DEG C；Quenched within 15 seconds；It is put into after quenching
In 150 DEG C of holding furnaces, 4 hours are incubated, air cooling of coming out of the stove.
4. a kind of method for producing aluminium alloy spring base with Horizontal type extrusion casting machine according to claim 1, its feature exists
In the mould of the aluminium alloy spring base product includes pouring section and overflow portion；Described pouring section be included in material handle,
The ingate being provided with material handle and the runner being provided with material handle；Described pouring section is using fluid flow state and pressure
Distribution, smoothly fills to aluminium alloy spring base product and consecutive solidification.
5. a kind of method for producing aluminium alloy spring base with Horizontal type extrusion casting machine according to claim 4, its feature exists
In the thickness of the ingate is more than the wall thickness of aluminium alloy spring base product.
6. a kind of method for producing aluminium alloy spring base with Horizontal type extrusion casting machine according to claim 5, its feature exists
Position is opened up in the middle part of aluminium alloy spring base product in, described running channel, aluminium alloy spring base product thickness in 10mm-15mm,
Cross gate need not be set；Ingate sectional dimension is φ 35mm, and ingate and sprue length (workpiece is to material handle length) are 35
40mm；The a diameter of 80mm of material cake, material handle thickness are 30 40mm.
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| CN201610976636.9A CN106493339B (en) | 2016-11-06 | 2016-11-06 | A method of aluminium alloy spring base is produced with Horizontal type extrusion casting machine |
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| CN201610976636.9A CN106493339B (en) | 2016-11-06 | 2016-11-06 | A method of aluminium alloy spring base is produced with Horizontal type extrusion casting machine |
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| CN106493339A true CN106493339A (en) | 2017-03-15 |
| CN106493339B CN106493339B (en) | 2019-02-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872321A (en) * | 2021-02-23 | 2021-06-01 | 广州和德轻量化成型技术有限公司 | Plate spring seat die for horizontal extrusion casting machine production and preparation method thereof |
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| JPS61253156A (en) * | 1985-04-30 | 1986-11-11 | Showa Alum Corp | Production of aluminum molding |
| JPS6267136A (en) * | 1985-09-19 | 1987-03-26 | Nippon Kokan Kk <Nkk> | Production of metallic composite material |
| JPS62296950A (en) * | 1986-06-18 | 1987-12-24 | Mazda Motor Corp | Metal pressure discrimination device for die casting |
| CN1129159A (en) * | 1994-02-28 | 1996-08-21 | 邱表来 | Pressure-extruding casting technology for production of high-strength anti-shock aluminium foundry goods |
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| CN101905306A (en) * | 2010-07-16 | 2010-12-08 | 吴江市液铸液压件铸造有限公司 | Casting production process of alloy spring seat |
| CN102363211A (en) * | 2011-10-10 | 2012-02-29 | 陈伟军 | Extrusion casting method for aluminum alloy automobile speed changing box shell |
| CN105397065A (en) * | 2015-11-10 | 2016-03-16 | 苏州三基铸造装备股份有限公司 | Extrusion casting production technology of car clutch shell |
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2016
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61253156A (en) * | 1985-04-30 | 1986-11-11 | Showa Alum Corp | Production of aluminum molding |
| JPS6267136A (en) * | 1985-09-19 | 1987-03-26 | Nippon Kokan Kk <Nkk> | Production of metallic composite material |
| JPS62296950A (en) * | 1986-06-18 | 1987-12-24 | Mazda Motor Corp | Metal pressure discrimination device for die casting |
| CN1129159A (en) * | 1994-02-28 | 1996-08-21 | 邱表来 | Pressure-extruding casting technology for production of high-strength anti-shock aluminium foundry goods |
| CN101152666A (en) * | 2006-09-25 | 2008-04-02 | 韦斌 | Extrution casting technique for aluminum alloy piston |
| CN101704088A (en) * | 2009-11-10 | 2010-05-12 | 姚国志 | Alloy liquid extrusion casting forming device and process method thereof |
| CN101905306A (en) * | 2010-07-16 | 2010-12-08 | 吴江市液铸液压件铸造有限公司 | Casting production process of alloy spring seat |
| CN102363211A (en) * | 2011-10-10 | 2012-02-29 | 陈伟军 | Extrusion casting method for aluminum alloy automobile speed changing box shell |
| CN105397065A (en) * | 2015-11-10 | 2016-03-16 | 苏州三基铸造装备股份有限公司 | Extrusion casting production technology of car clutch shell |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872321A (en) * | 2021-02-23 | 2021-06-01 | 广州和德轻量化成型技术有限公司 | Plate spring seat die for horizontal extrusion casting machine production and preparation method thereof |
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| Publication number | Publication date |
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| CN106493339B (en) | 2019-02-15 |
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