CN110238368A - A kind of production method of new-energy electric vehicle pond pallet - Google Patents
A kind of production method of new-energy electric vehicle pond pallet Download PDFInfo
- Publication number
- CN110238368A CN110238368A CN201810191826.9A CN201810191826A CN110238368A CN 110238368 A CN110238368 A CN 110238368A CN 201810191826 A CN201810191826 A CN 201810191826A CN 110238368 A CN110238368 A CN 110238368A
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- Prior art keywords
- casting
- electric vehicle
- new
- energy electric
- finished product
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Classifications
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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
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a kind of production methods of new-energy electric vehicle pond pallet, including cast main body, heat treatment, Shape correction, polishing, segmentation chamber, six steps of leaking hunting.The production technology of battery tray is improved, thus resulting battery tray main body section is produced to be an integral structure, only generate a small amount of welding position, from improving structural strength, maintain process consistency, optimized production process, have the function that reduce production cost, meanwhile, the main structure of battery tray integral type is more advantageous to heat dissipation.Thus, protective capability, bearing capacity, the heat-sinking capability of battery tray all get a promotion.
Description
Technical field
The present invention relates to a kind of production methods of new-energy electric vehicle pond pallet.
Background technique
Diversification requirement with modern society to energy resource structure, is absorbed in the vehicles of single petrochemical industry driving method
It will necessarily suffer restraints, environmentally friendly, the convenient characteristic of electric energy, so that the vehicles being driven by electricity increasingly match social development
Demand, just because of this, research and development New-energy electric vehicle are the only way which must be passed of development of automobile industry development.The core of electric car
Part includes battery module, it determines the course continuation mileage of electric car in very big one side.Battery tray is in battery module
Play carrying, protection, heat sinking function main component, modular battery pack is disposed in battery tray, passes through battery tray
Disk is fixed on automobile chassis；Battery tray is also responsible for the distributing heat of the task while protecting battery pack, to be battery
Module, which operates normally, provides structural support.
Battery tray is made of aluminium section in the prior art, and aluminium section is first cut into a section discrete portion
Part, then obtain aluminium section for cutting and remove flash removed, then make to obtain one with semiclosed chamber by stirring welding manner
The support holder structure of room after welding, then carries out one of grinding process, leaks hunting finally by leakage tester, thus obtains available
New-energy electric vehicle pond pallet.It will be apparent that the battery tray of the structure is the assembly that discreet component is welded, respectively
There are apparent welding positions between section aluminium section.Using which production battery tray, there is only the scarce of high production cost
Point, poor, process consistency difference disadvantage that there is also structural strengths.The vibration generated during electric automobile during traveling, is easy to make to weld
Socket part position is cracked, loosens, and causes the disadvantage that structural strength is weak.There is very long duration, each welding in welding process
Position is not same time forming, thus leads to the disadvantage of process consistency difference.
Battery tray is that the assembly that discreet component is welded causes since welding position intensity is low, has welding stress
Such battery tray can not be heat-treated.That is common intensity increases technology, cannot use in such battery tray
On disk.
Summary of the invention
The technical problem to be solved by the present invention is to how improve structural strength and process consistency and reduce production cost,
A kind of production method of new-energy electric vehicle pond pallet is provided thus.
In order to solve the above technical problems, the present invention adopts the following technical scheme: the new-energy electric vehicle pond pallet
Production method,
First step cast main body obtains overall structure aluminum rough casting, the aluminum rough casting by low pressure casting
On set there are four side wall position and a lower portion, the side wall position is located at lower portion edge, the side wall position and
Lower portion is linked together, and adjacent wall is also linked together between position, and half is formed between the side wall position and lower portion
Closed chamber；Aluminum rough casting is heated to 530 DEG C to 540 DEG C by second step heat treatment, and heat preservation carried out water cooling after 8 hours；The
Cooling aluminum rough casting is heated to 160 DEG C to 170 DEG C by three step Shape corrections, and it is cold that heat preservation 6 as a child carried out nature afterwards
But；The polishing of 4th step, polishes to aluminum rough casting, and then obtains semi-finished product；5th step divides chamber, by hot rolled aluminium
It is welded on semi-finished product cast-internal and is located in semiclosed chamber, and then obtain finished product, that is, pallet；6th pacing leakage, to pallet into
Row sealing test.
Battery tray production method in the present invention using casting technique and welding processing in conjunction with mentality of designing solve
Technical problem.Casting obtains the main structure for the battery tray for being, can fully ensure that the structure of battery tray entirety is strong in this way
Degree.Hot rolled aluminium surface quality is good, while mechanical property and ductility are stronger, using it as the portion for dividing semiclosed chamber
Part can obtain preferable structural behaviour；The welding position quantity generated by the welding of the main body of hot rolled aluminium and battery tray is non-
Often few, therefore, the consistency of welding procedure is fully guaranteed.Semiclosed chamber is divided using hot rolled aluminium in the technical scheme
Room, bring technical effect are not only limited to simplify technique, and also residing in can obtain compared to using monoblock cast acquisition battery tray
The light-weight advantage that disk has, because relatively thin hot rolled aluminium can be selected, if dividing half envelope by way of casting
The thickness at the casting position of closed chamber room then formed is thicker, otherwise can there is apparent shrinkage porosite phenomenon；In the technical scheme may be used
With hot rolled aluminium preferred in this way, i.e. the thickness of the hot rolled aluminium thickness that is less than the side wall position of semi-finished product casting, hot rolled aluminium
Thickness is less than the thickness of the lower portion of semi-finished product casting.In addition to this, casting can form arcuate structure, and aluminium section is not
It can be bent, so, the variations in detail range of the structure of battery tray is wide, can satisfy more design requirements.
The temperature in heat treatment process is preferably 535 DEG C in the technical scheme.Temperature in shaping processing process is preferred
It is 165 DEG C.
The main body section of battery tray is aluminum material, and aluminium sheet is also aluminum material, so using hot rolled aluminium by stirring
Welding is mixed to be installed in semi-finished product casting.
The present invention is by adopting the above technical scheme: the production technology of battery tray is improved, and resulting battery is thus produced
Tray main body position is an integral structure, and only generates a small amount of welding position, and from improving, structural strength, to maintain technique consistent
Property, optimized production process, haved the function that reduce production cost, meanwhile, the main structure of battery tray integral type is more advantageous
In heat dissipation.Thus, protective capability, bearing capacity, the heat-sinking capability of battery tray all get a promotion.
Detailed description of the invention
The present invention is further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the finished product structure obtained after a kind of production method of new-energy electric vehicle pond of the invention pallet is implemented
Schematic diagram.
Specific embodiment
Need to undergo when producing new-energy electric vehicle pond pallet cast main body, heat treatment, Shape correction, polishing,
Divide chamber, six steps of leaking hunting.
First step cast main body.Overall structure aluminum rough casting is obtained using low pressure casting, which is
A kind of common prior art, mold are placed in above the crucible of sealing, compressed air are passed through in crucible, in the table of molten aluminum liquid
Low-pressure is caused on face, so that molten metal is risen filling mold by stalk, is just formd aluminum rough casting in mold.Aluminum hair
Side wall position 1 and a lower portion 2 there are four setting on billet cast piece, side wall position 1 is located at 2 edge of lower portion, side wall position 1
Be linked together with lower portion 2, be also linked together between side wall position 1 and side wall position 1, side wall position 1 and lower portion 2 it
Between form semiclosed chamber.
Second step heat treatment.Aluminum rough casting is heated to 535 DEG C, heat preservation carried out water cooling after 8 hours.
Cooling aluminum rough casting is heated to 165 DEG C by third step Shape correction, and heat preservation 6 as a child carries out nature afterwards
It is cooling.
The polishing of 4th step, aluminum rough casting is put on numerically-controlled machine tool, is polished aluminum rough casting, and then obtain
Obtain semi-finished product.
5th step divides chamber, and hot rolled aluminium 3 is welded on semi-finished product cast-internal with agitation welding tool and is located at half
In closed chamber, semiclosed chamber is divided into multiple small spaces by hot rolled aluminium 3, and then obtains finished product, that is, pallet；
6th pacing leakage is sealed test to pallet using leakage tester, and qualified product is transported to warehouse preservation, rejected product
It destroys.
In thus obtained new-energy electric vehicle pond pallet 4, as shown in Figure 1, the thickness of hot rolled aluminium 3 is less than half
The thickness at the side wall position 1 of finished product cast, while the thickness of hot rolled aluminium 3 is again smaller than the thickness of the lower portion 2 of semi-finished product casting
Degree.Since the main structure of battery tray is cast member, thus there is overall structure, structural strength is significantly larger than welded
Component structural strength, the welding position quantity formed by hot rolled aluminium 3 is few, can guarantee its technique completely in having technique
Consistency does not have apparent difference.
The variation range for being heat-treated required temperature and Shape correction required temperature can be in ± 5 DEG C.Therefore, work as heat treatment
Required temperature is 530 DEG C, Shape correction required temperature can be 160 DEG C；When heat treatment required temperature is 530 DEG C, Shape correction
Required temperature can also be 170 DEG C；When heat treatment required temperature is 540 DEG C, Shape correction required temperature can be 160 DEG C；When
Heat treatment required temperature is 540 DEG C, Shape correction required temperature can also be 170 DEG C.Thus other four kinds of embodiments are obtained.
Claims (5)
1. a kind of production method of new-energy electric vehicle pond pallet, it is characterised in that:
First step cast main body obtains overall structure aluminum rough casting by low pressure casting, sets on the aluminum rough casting
There are four side wall position (1) and a lower portion (2), the side wall position (1) is located at lower portion (2) edge, the side
Wall site (1) is linked together with lower portion (2), and adjacent wall position is also linked together between (1), the side wall position (1)
Semiclosed chamber is formed between lower portion (2)；
Aluminum rough casting is heated to 530 DEG C to 540 DEG C by second step heat treatment, and heat preservation carried out water cooling after 8 hours；
Cooling aluminum rough casting is heated to 160 DEG C to 170 DEG C by third step Shape correction, and heat preservation 6 as a child carried out certainly afterwards
It is so cooling；
The polishing of 4th step, polishes to aluminum rough casting, and then obtains semi-finished product；
5th step divides chamber, and hot rolled aluminium (3) is welded on semi-finished product cast-internal and is located in semiclosed chamber, and then is obtained
Obtain finished product, that is, pallet；
6th pacing leakage, is sealed test to pallet.
2. the production method of new-energy electric vehicle pond pallet according to claim 1, it is characterised in that: at the heat
Temperature during reason is 535 DEG C.
3. the production method of new-energy electric vehicle pond pallet according to claim 1, it is characterised in that: the shaping
Temperature in treatment process is 165 DEG C.
4. the production method of new-energy electric vehicle pond pallet according to claim 1, it is characterised in that: the hot rolling
Aluminium sheet (3) is installed in semi-finished product casting by stirring welding.
5. according to claim 1 or the production method of 4 new-energy electric vehicle pond pallets, it is characterised in that: described
The thickness of hot rolled aluminium (3) is less than the thickness at the side wall position (1) of semi-finished product casting, and the thickness of the hot rolled aluminium (3) is less than
The thickness of the lower portion (2) of semi-finished product casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810191826.9A CN110238368A (en) | 2018-03-08 | 2018-03-08 | A kind of production method of new-energy electric vehicle pond pallet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810191826.9A CN110238368A (en) | 2018-03-08 | 2018-03-08 | A kind of production method of new-energy electric vehicle pond pallet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110238368A true CN110238368A (en) | 2019-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810191826.9A Pending CN110238368A (en) | 2018-03-08 | 2018-03-08 | A kind of production method of new-energy electric vehicle pond pallet |
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| Country | Link |
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| CN (1) | CN110238368A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3836242A1 (en) * | 2019-12-11 | 2021-06-16 | GF Casting Solutions AG | Battery tub |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102366828A (en) * | 2011-10-10 | 2012-03-07 | 陈伟军 | Low-pressure casting method of aluminum alloy automobile hub |
| CN104620411A (en) * | 2012-09-18 | 2015-05-13 | 宝马股份公司 | Supporting element for a housing of a vehicle traction battery |
| CN105470426A (en) * | 2015-12-28 | 2016-04-06 | 上海汽车制动器有限公司 | Battery frame tray with water cooling plate and processing method of battery frame tray |
| KR20160092770A (en) * | 2015-01-28 | 2016-08-05 | 중소기업은행 | Block for supporting battery assembly and battery assembly comprising the same |
| CN206076324U (en) * | 2016-09-22 | 2017-04-05 | 广州汽车集团股份有限公司 | Vehicular battery bag lower house structure, battery pack housing and battery bag |
| CN106694841A (en) * | 2016-12-30 | 2017-05-24 | 广州汽车集团股份有限公司 | Manufacturing method of battery package shell of new energy automobile and corresponding battery package shell |
| CN206236721U (en) * | 2016-11-24 | 2017-06-09 | 惠州市蓝微新源技术有限公司 | A kind of battery bag casing |
| CN106997935A (en) * | 2016-01-25 | 2017-08-01 | 福特全球技术公司 | Battery group pattern keeper |
-
2018
- 2018-03-08 CN CN201810191826.9A patent/CN110238368A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102366828A (en) * | 2011-10-10 | 2012-03-07 | 陈伟军 | Low-pressure casting method of aluminum alloy automobile hub |
| CN104620411A (en) * | 2012-09-18 | 2015-05-13 | 宝马股份公司 | Supporting element for a housing of a vehicle traction battery |
| KR20160092770A (en) * | 2015-01-28 | 2016-08-05 | 중소기업은행 | Block for supporting battery assembly and battery assembly comprising the same |
| CN105470426A (en) * | 2015-12-28 | 2016-04-06 | 上海汽车制动器有限公司 | Battery frame tray with water cooling plate and processing method of battery frame tray |
| CN106997935A (en) * | 2016-01-25 | 2017-08-01 | 福特全球技术公司 | Battery group pattern keeper |
| CN206076324U (en) * | 2016-09-22 | 2017-04-05 | 广州汽车集团股份有限公司 | Vehicular battery bag lower house structure, battery pack housing and battery bag |
| CN206236721U (en) * | 2016-11-24 | 2017-06-09 | 惠州市蓝微新源技术有限公司 | A kind of battery bag casing |
| CN106694841A (en) * | 2016-12-30 | 2017-05-24 | 广州汽车集团股份有限公司 | Manufacturing method of battery package shell of new energy automobile and corresponding battery package shell |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3836242A1 (en) * | 2019-12-11 | 2021-06-16 | GF Casting Solutions AG | Battery tub |
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Application publication date: 20190917 |