CN106114734A - A kind of alloy integrated die-casting vehicle frame and pressure casting method thereof - Google Patents

A kind of alloy integrated die-casting vehicle frame and pressure casting method thereof Download PDF

Info

Publication number
CN106114734A
CN106114734A CN201610522034.6A CN201610522034A CN106114734A CN 106114734 A CN106114734 A CN 106114734A CN 201610522034 A CN201610522034 A CN 201610522034A CN 106114734 A CN106114734 A CN 106114734A
Authority
CN
China
Prior art keywords
pressing
vehicle frame
nip
rest
axle
Prior art date
Application number
CN201610522034.6A
Other languages
Chinese (zh)
Other versions
CN106114734B (en
Inventor
王冬宏
Original Assignee
佛山市铭特铝业科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 佛山市铭特铝业科技有限公司 filed Critical 佛山市铭特铝业科技有限公司
Priority to CN201610522034.6A priority Critical patent/CN106114734B/en
Publication of CN106114734A publication Critical patent/CN106114734A/en
Application granted granted Critical
Publication of CN106114734B publication Critical patent/CN106114734B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00Cycle frames
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00Casting in, on, or around objects which form part of the product
    • B22D19/04Casting in, on, or around objects which form part of the product for joining parts
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • C22C1/026Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/06Alloys based on aluminium with magnesium as the next major constituent

Abstract

The invention provides a kind of alloy integrated die-casting vehicle frame, including the first vehicle frame pressing part, the second vehicle frame pressing part, the first back rest pressing part and the second back rest pressing part, first vehicle frame pressing part and the second vehicle frame pressing part all include front axle nip portion, front-axle beam nip portion, vehicle seat nip portion, underbeam nip portion and back rest nip portion, the front axle nip portion in front axle nip portion in described first vehicle frame pressing part, front-axle beam nip portion, vehicle seat nip portion, underbeam nip portion respectively with the second vehicle frame pressing part, front-axle beam nip portion, vehicle seat nip portion, the corresponding pressing and forming of underbeam nip portion.The intensity that the alloy integrated die-casting vehicle frame that the present invention provides can avoid conventional bonding technique to cause while alleviating vehicle frame weight declines and weldering schlieren rings defect attractive in appearance.Present invention also offers the compression method of a kind of alloy integrated die-casting vehicle frame, including: the steps such as 3D design, die sinking, melting, matched moulds, gluing and pressing.This method simplifies the technique that vehicle frame produces, and improves the efficiency that vehicle frame produces.

Description

A kind of alloy integrated die-casting vehicle frame and pressure casting method thereof

Technical field

The present invention relates to a kind of cycle frame and production method thereof, particularly relate to a kind of bicycle alloy integrated die-casting car Frame and pressure casting method thereof.

Background technology

At present, the material that can manufacture cycle frame mainly has following several: steel, aluminium alloy, titanium alloy, magnesium alloy, Scandium alloy, carbon fiber etc., the vehicle frame that open market occurs mainly has steel, aluminium alloy, titanium alloy and carbon fiber.Vehicle Frame the most generally uses steel pipe manufacture, and the rigidity of steel pipe vehicle frame is preferable, but the density of steel is relatively big, can cause bicycle weight Relatively big, along with bicycle lightweight trend, the share of steel pipe vehicle frame has gradually reduced, and the substitute is various alloy car Frame, the thin amount of alloy vehicle frame matter is light, and rigidity also complies with the requirement of cycle frame.But the cycle frame of alloy is equal at present Forming for tubing or plate stamping then seam, outward appearance can clearly see welding texture, and due to the high temperature welded and oxygen Change and the incorporation of impurity, or not prison welding etc., the defect such as cause the strength of materials near weld bond to decline or to snap, and process system Make time-consuming, relatively costly, affect integral strength and attractive in appearance.

In order to overcome above-mentioned technological deficiency, it is new that lot of domestic and international bicycle manufacturer has begun working on cycle frame Production technology, as Chinese patent " CN200820078729.0 " discloses " a kind of magnesium alloy integrated die-casting electric vehicle frame ", this magnesium Alloy integrated die-casting rack for electric motor car employing die casting integral forming process avoids to weld the intensity decline caused and weld maneuver and lacks Fall into.But in fact compare with steel due to the intensity of magnesium alloy or there is certain gap, if do not entered in press casting procedure Row reinforcement, easily occurs that the front-axle beam of die casting or support beam rigidity are inadequate, in fast turn-around or when bearing bigger pressure, easily Vehicle frame is occurred to bend the phenomenon even ruptured.

Summary of the invention

The purpose of the present invention mainly solves the problem existing for prior art: provide a kind of alloy integrated die-casting vehicle frame, While the intensity avoiding conventional bonding technique to cause declines and weldering schlieren sound is attractive in appearance, strengthen the intensity of alloy vehicle frame self, When ensureing in fast turn-around or bear bigger pressure, alloy vehicle frame does not bends, phenomenon of rupture.Present invention also offers one Plant the compression method of alloy integrated die-casting vehicle frame, the technique that vehicle frame produces can be simplified, improve the efficiency that vehicle frame produces.

For realizing technique scheme, the invention provides a kind of alloy integrated die-casting vehicle frame, including the first vehicle frame pressing Part, the second vehicle frame pressing part, the first back rest pressing part and the second back rest pressing part, described first vehicle frame pressing part and the second vehicle frame Pressing part is symmetrical structure, and described first vehicle frame pressing part and the second vehicle frame pressing part all include front axle nip portion, front-axle beam pressing Portion, vehicle seat nip portion, underbeam nip portion and back rest nip portion, the front axle nip portion in described first vehicle frame pressing part, front-axle beam pressure Front axle nip portion in conjunction portion, vehicle seat nip portion, underbeam nip portion respectively with the second vehicle frame pressing part, front-axle beam nip portion, vehicle seat Nip portion, underbeam nip portion correspondence pressing and forming, the back rest nip portion in described first vehicle frame pressing part and the first back rest pressing Part pressing and forming, the back rest nip portion in described second vehicle frame pressing part and the second back rest pressing part pressing and forming;Described first It is provided with reinforcement inside the front-axle beam nip portion of vehicle frame pressing part and the second vehicle frame pressing part, is provided with below described reinforcement Reinforcement connecting plate;It is all provided with inside described first vehicle frame pressing part and the underbeam nip portion of the second vehicle frame pressing part and back rest nip portion It is equipped with multiple reinforcement connecting tube spaced apart.

In technique scheme, the front axle nip portion in described first vehicle frame pressing part, front-axle beam nip portion, vehicle seat pressing Front axle nip portion in portion, underbeam nip portion respectively with the second vehicle frame pressing part, front-axle beam nip portion, vehicle seat nip portion, underbeam pressure Conjunction portion correspondence pressing and forming, simultaneously in the first back rest pressing part, the second back rest pressing part respectively with the first vehicle frame pressing part after Back rest nip portion pressing in beam nip portion, the second vehicle frame pressing part, pressing is in the case of High Temperature High Pressure, in matched moulds mould Pressing end die cast in the molten state, seamless link, simultaneously in order to strengthen the intensity of pressing vehicle frame, the first vehicle frame pressing The corresponding reinforcement in reinforcement, reinforcement connecting plate, reinforcement connecting tube and the second vehicle frame pressing part, reinforcement in part connect Plate, reinforcement connecting tube are also that corresponding die casting connects, after cast temperature cools down, in the first vehicle frame pressing part in the molten state Corresponding reinforcement in reinforcement, reinforcement connecting plate, reinforcement connecting tube and the second vehicle frame pressing part, reinforcement connecting plate, benefit Strong ties pipe seamless link together, thus strengthens the intensity of vehicle frame.

Preferably, it is provided with between described first vehicle frame pressing part and the vehicle seat nip portion of the second vehicle frame pressing part for propping up The seat stays pipe of support vehicle seat.Seat stays pipe can be not only used for supporting seat, simultaneously in press casting procedure can and vehicle seat Nip portion presses together, and strengthens the intensity of vehicle seat nip portion.

Preferably, it is provided with between described first vehicle frame pressing part and the front axle nip portion of the second vehicle frame pressing part for propping up The front axle of support headstock props up stay tube.Front axle props up stay tube and can be not only used for supporting headstock, simultaneously in press casting procedure can and front axle Nip portion presses together, and strengthens the intensity of front axle nip portion.

Preferably, reinforcement connecting tube it is provided with inside described first back rest pressing part, inside described first back rest pressing part The reinforcement connecting tube arranged is corresponding with the reinforcement connecting tube inside the first vehicle frame pressing part back rest nip portion;Described second back rest Reinforcement connecting tube it is provided with, the reinforcement connecting tube arranged inside described second back rest pressing part and the second vehicle frame pressure inside pressing part Reinforcement connecting tube inside component back rest nip portion is corresponding.The pressure born due to the back rest of vehicle frame is relatively big, simultaneously in order to subtract Light vehicle frame weight, damping and the factor such as attractive in appearance, the back rest of vehicle frame is the most very thin, for beam strength after ensureing, it is necessary to Arranging reinforcement connecting tube in back rest nip portion, the back rest after just can ensure that pressing by the reinforcement of reinforcement connecting tube possesses higher Intensity.

Preferably, the back rest nip portion end of described first vehicle frame pressing part and the second vehicle frame pressing part is provided with rear axle Installing hole;Rear axle installing hole is for carrying the rotating shaft of trailing wheel.

Preferably, the underbeam nip portion bottom of described first vehicle frame pressing part and the second vehicle frame pressing part is provided with axis Installing hole.Axis installing hole is for carrying the axis of car.

Preferably, described first vehicle frame pressing part, the second vehicle frame pressing part, the first back rest pressing part and the second back rest pressing Part all uses magnesium-aluminium alloy material.Magnesium-aluminium alloy material matter heavily fortified point amount is light, and intensity is high, and fusing point is relatively low, is particularly suitable for vehicle The die cast of frame.

Present invention also offers the compression method of a kind of alloy integrated die-casting vehicle frame, specifically include following steps:

S1,3D design: according to the requirement of vehicle frame, respectively by the first vehicle frame pressing part, the second vehicle frame pressing part, first back rest Pressing part and the shape of the second back rest each parts of pressing part and size are drawn, and design reinforcement, reinforcement connecting plate and reinforcement Connecting tube particular location in each parts;

S2, die sinking: according to the drawing drawn in step S1, be the first vehicle frame pressing part, the second vehicle frame pressing part, after first Beam pressing part and the second back rest pressing part offer independent shaping dies respectively;According to the vehicle frame overall diagram in step S1 it is simultaneously Vehicle frame entirety offers matched moulds mould;

S3, melting: the mass percent of alloy is consisted of Mg12.5-20.5, Mn 0.4-0.8, Cr 0.01-0.03, La 0.2-0.6, Ce 0.2-0.6, Pr 0.06-0.2, Y 0.2-0.4, Zn 0.2-0.3, Sr 0.2-1.5, Cu 0.06- 0.08, surplus is Al dispensing, is delivered to respectively in the independent shaping dies offered respectively in step S2 be smelted into alloy, produces It is the first vehicle frame pressing part, the second vehicle frame pressing part, the first back rest pressing part and the independent pressing part of the second back rest pressing part;

S4, matched moulds: by the first vehicle frame pressing part of melting in step S3, the second vehicle frame pressing part, the first back rest pressing part, In the vehicle frame entirety matched moulds mould that second back rest pressing part, front axle prop up stay tube and seat stays pipe is respectively placed in step S2;

S5, gluing: in the first vehicle frame pressing part, the second vehicle frame pressing part, the first back rest pressing part, the second back rest pressing Part, front axle prop up the end face of stay tube and seat stays pipe pressing and smear the impregnating adhesive preventing alloy components micropore seepage;

S6, pressing: each pressing part that painting wipes impregnating adhesive is the condition of 90-100MPa at temperature 500-550 DEG C, pressure Under, in vehicle frame entirety matched moulds mould, carry out pressing.

In technique scheme, use the bending strength of step S3 formula melting magnalium pressing part out self 100N/mm can be reached2Above, more than bicycle frame materials bending strength (company standard: bending strength >=65N/mm2) Requirement.

In technique scheme, when the purpose of step S5 gluing is to prevent pressing under High Temperature High Pressure, each contact site Produce micropore, destroy the intensity of nip portion.

In technique scheme, the pressing condition that step S6 uses temperature 500-550 DEG C, pressure to be 90-100MPa, just Make well magnalium in this programme be in preliminary molten condition, then press under the situation not changing each independent pressing part profile Synthesis type, it is possible to farthest ensure the prototype of vehicle frame.

Preferably, in described step S3, first by above-mentioned each raw material preheating at least 150 DEG C, then fine aluminium is placed in melting Stove is heated to 800-850 DEG C, is subsequently added almag and cathode copper and is stirred continuously until almag and electrolysis Copper all melts, and is cooled to 750-770 DEG C afterwards and adds alusil alloy and be stirred continuously until almag and all melt, with After be cooled to 680-700 DEG C and pure magnesium is pressed into bottom melt maintains at least 5min, stirring melt again rising afterwards Temperature, to 800-850 DEG C, is simultaneously introduced refining agent and carries out refine, after standing 8-9min, completes melting after inspection bath composition is qualified.

The invention has the beneficial effects as follows:

1. the alloy integrated die-casting vehicle frame that the present invention provides can avoid traditional welding work while alleviating vehicle frame weight The intensity that skill causes declines and weldering schlieren rings defect attractive in appearance;

2. the alloy integrated die-casting vehicle frame that the present invention provides is by arranging reinforcement, reinforcement connecting plate and reinforcement connecting tube etc. What parts can strengthen vehicle frame calls oneself intensity, and when can stop in fast turn-around or bear bigger pressure, alloy vehicle frame occurs Bending, phenomenon of rupture;

3. the compression method of the alloy integrated die-casting vehicle frame that the present invention provides simplifies the technique that vehicle frame produces, and improves vehicle frame The efficiency produced, when being possible to prevent pressing under High Temperature High Pressure by coating process, each contact site produces micropore simultaneously, destroys pressing The intensity in portion.

Accompanying drawing explanation

Fig. 1 is the perspective view of vehicle frame in the present invention.

Fig. 2 is the stereochemical structure explosive view of vehicle frame in the present invention.

Fig. 3 is the schematic flow sheet of compression method in the present invention.

In figure: 100, the first vehicle frame pressing part;101, reinforcement;102, reinforcement connecting plate;103, reinforcement connecting tube;200、 Second vehicle frame pressing part;210, front axle nip portion;220, front-axle beam nip portion;230, vehicle seat nip portion;240, underbeam nip portion; 241, axis installing hole;250, back rest nip portion;251, rear axle installing hole;300, front axle props up stay tube;400, seat stays pipe; 500, the first back rest pressing part;600, the second back rest pressing part.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Whole description, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Ability The every other embodiment that territory ordinary person is obtained under not making creative work premise, belongs to the protection of the present invention Scope.

Embodiment 1: a kind of alloy integrated die-casting vehicle frame.

Referring to figs. 1 through shown in Fig. 3, a kind of alloy integrated die-casting vehicle frame, including first vehicle frame pressing part the 100, second vehicle frame Pressing part 200, first back rest pressing part 500 and the second back rest pressing part 600, described first vehicle frame pressing part 100 and the second car Frame pressing part 200 is symmetrical structure, and described first vehicle frame pressing part 100 and the second vehicle frame pressing part 200 all include front axle pressing Portion 210, front-axle beam nip portion 220, vehicle seat nip portion 230, underbeam nip portion 240 and back rest nip portion 250, described first vehicle frame pressure Front axle nip portion 210 in component 100, front-axle beam nip portion 220, vehicle seat nip portion 230, underbeam nip portion 240 respectively with the second Front axle nip portion 210 in vehicle frame pressing part 200, front-axle beam nip portion 220, vehicle seat nip portion 230, underbeam nip portion 240 are corresponding Pressing and forming, the back rest nip portion 250 in described first vehicle frame pressing part 100 and the first back rest pressing part 500 pressing and forming, institute State the back rest nip portion 250 in the second vehicle frame pressing part 200 and the second back rest pressing part 600 pressing and forming;Described first vehicle frame It is provided with reinforcement 101, described reinforcement inside the front-axle beam nip portion 220 of pressing part 100 and the second vehicle frame pressing part 200 Reinforcement connecting plate 102 it is provided with below 101;Described first vehicle frame pressing part 100 and the underbeam pressing of the second vehicle frame pressing part 200 Multiple reinforcement connecting tube 103 spaced apart it is provided with inside portion 240 and back rest nip portion 250.

In technique scheme, the front axle nip portion 210 in described first vehicle frame pressing part 100, front-axle beam nip portion 220, the front axle nip portion 210 in vehicle seat nip portion 230, underbeam nip portion 240 respectively with the second vehicle frame pressing part 200, front-axle beam The corresponding pressing and forming of nip portion 220, vehicle seat nip portion 230, underbeam nip portion 240, the first back rest pressing part 500, second simultaneously After in back rest nip portion the 250, second vehicle frame pressing part 200 in back rest pressing part 600 respectively with the first vehicle frame pressing part 100 Beam nip portion 250 pressing, pressing is in the case of High Temperature High Pressure, and in matched moulds mould, pressing end is cast in the molten state Type, seamless link, simultaneously in order to strengthen the intensity of pressing vehicle frame, reinforcement 101, reinforcement in the first vehicle frame pressing part 100 connect Corresponding reinforcement 101 in fishplate bar 102, reinforcement connecting tube 103 and the second vehicle frame pressing part 200, reinforcement connecting plate 102, Reinforcement connecting tube 103 is also that corresponding die casting connects in the molten state, after cast temperature cools down, and the first vehicle frame pressing part 100 In reinforcement 101, reinforcement connecting plate 102, reinforcement connecting tube 103 and the second vehicle frame pressing part 200 in corresponding reinforcement 101, reinforcement connecting plate 102, reinforcement connecting tube 103 seamless link together, thus strengthen the intensity of vehicle frame.

Shown in seeing figures.1.and.2, described first vehicle frame pressing part 100 and the vehicle seat nip portion of the second vehicle frame pressing part 200 The seat stays pipe 400 for supporting seat it is provided with between 230.Seat stays pipe 400 can be not only used for supporting seat, with Time can press together with vehicle seat nip portion 230 in press casting procedure, strengthen vehicle seat nip portion 230 intensity.

Shown in seeing figures.1.and.2, described first vehicle frame pressing part 100 and the front axle nip portion of the second vehicle frame pressing part 200 It is provided with between 210 and props up stay tube 300 for the front axle supporting headstock.Front axle props up stay tube 300 and can be not only used for supporting headstock, with Time can press together with front axle nip portion 210 in press casting procedure, strengthen front axle nip portion 210 intensity.

With reference to shown in Fig. 2, inside described first back rest pressing part 500, it is provided with reinforcement connecting tube 103, described first back rest Reinforcement inside the reinforcement connecting tube 103 arranged inside pressing part 500 and the first vehicle frame pressing part 100 back rest nip portion 250 is even Adapter 103 is corresponding;Reinforcement connecting tube 103, described second back rest pressing part it is provided with inside described second back rest pressing part 600 Reinforcement connecting tube 103 inside the reinforcement connecting tube 103 arranged inside 600 and the second vehicle frame pressing part 200 back rest nip portion 250 Corresponding.The pressure born due to the back rest of vehicle frame is relatively big, simultaneously in order to alleviate vehicle frame weight, damping and the factor such as attractive in appearance, car The back rest of frame is the most very thin, for beam strength after ensureing, it is necessary to arrange reinforcement connecting tube 103 in back rest nip portion 250, The back rest after just can ensure that pressing by the reinforcement of reinforcement connecting tube 103 possesses higher intensity.

With reference to shown in Fig. 2, the back rest nip portion 250 of described first vehicle frame pressing part 100 and the second vehicle frame pressing part 200 is last End is provided with rear axle installing hole 251;Rear axle installing hole 251 is for carrying the rotating shaft of trailing wheel.

Shown in reference Fig. 2, described first vehicle frame pressing part 100 and underbeam nip portion 240 end of the second vehicle frame pressing part 200 End is provided with axis installing hole 241.Axis installing hole 241 is for carrying the axis of car.

In the present embodiment, described first vehicle frame pressing part the 100, second vehicle frame pressing part 200, first back rest pressing part 500 Magnesium-aluminium alloy material is all used with the second back rest pressing part 600.Magnesium-aluminium alloy material matter heavily fortified point amount is light, and intensity is high, and fusing point is relatively low, especially It is suitable for the die cast of cycle frame.

Embodiment 2: the compression method of a kind of alloy integrated die-casting vehicle frame.

Referring to figs. 1 through shown in Fig. 3, the compression method of a kind of alloy integrated die-casting vehicle frame, specifically include following steps:

S1,3D design: according to the requirement of vehicle frame, respectively by first vehicle frame pressing part the 100, second vehicle frame pressing part 200, the One back rest pressing part 500 and the shape of the second each parts of back rest pressing part 600 and size are drawn, and design reinforcement 101, mend Strong ties plate 102 and the reinforcement connecting tube 103 particular location in each parts;

S2, die sinking: according in step S1 draw drawing, be first vehicle frame pressing part the 100, second vehicle frame pressing part 200, First back rest pressing part 500 and the second back rest pressing part 600 offer independent shaping dies respectively;Simultaneously according in step S1 Vehicle frame overall diagram is that vehicle frame entirety offers matched moulds mould;

S3, melting: the mass percent of alloy is consisted of Mg15, Mn 0.6, Cr 0.02, La 0.2, Ce 0.3, Pr 0.08, Y 0.2, Zn 0.3, Sr 0.8, Cu 0.06, surplus is Al dispensing, and be delivered to respectively to offer respectively in step S2 is only Being smelted into alloy in vertical shaping dies, producing is first vehicle frame pressing part the 100, second vehicle frame pressing part the 200, first back rest pressure Component 500 and the independent pressing part of the second back rest pressing part 600;

S4, matched moulds: by first vehicle frame pressing part the 100, second vehicle frame pressing part 200, first back rest of melting in step S3 Pressing part 500, second back rest pressing part 600, front axle props up stay tube 300 and seat stays pipe 400 is respectively placed in step S2 In vehicle frame entirety matched moulds mould;

S5, gluing: at first vehicle frame pressing part the 100, second vehicle frame pressing part 200, first back rest pressing part 500, second Back rest pressing part 600, front axle prop up the end face of stay tube 300 and seat stays pipe 400 pressing and smear and prevent alloy components micropore seepage Impregnating adhesive;

S6, pressing: painting is wiped each pressing part of impregnating adhesive under conditions of temperature 550 DEG C, pressure are 90MPa, in car Frame entirety matched moulds mould carries out pressing.

In the present embodiment, the bending strength of step S3 formula melting magnalium pressing part out self is used to reach To 100N/mm2Above, more than bicycle frame materials bending strength (company standard: bending strength >=65N/mm2) requirement.

In the present embodiment, when the purpose of step S5 gluing is to prevent pressing under High Temperature High Pressure, each contact site produces micro- Hole, destroys the intensity of nip portion.

In the present embodiment, the pressing condition that step S6 uses temperature 550 DEG C, pressure to be 90MPa, just make in this programme Magnalium is in preliminary molten condition, then pressing and forming under the situation not changing each independent pressing part profile, it is possible to The prototype ensureing vehicle frame of big degree.

In the present embodiment, in described step S3, first by above-mentioned each raw material preheating at least 150 DEG C, then fine aluminium is placed in Smelting furnace is heated to 800-850 DEG C, be subsequently added almag and cathode copper and be stirred continuously until almag and Cathode copper all melts, and is cooled to 750-770 DEG C afterwards and adds alusil alloy and be stirred continuously until almag and all melt Change, be cooled to 680-700 DEG C subsequently and pure magnesium is pressed into bottom melt maintains at least 5min, afterwards stirring melt again Secondary it is warming up to 800-850 DEG C, is simultaneously introduced refining agent and carries out refine, after standing 8-9min, complete after inspection bath composition is qualified Melting.

The above is presently preferred embodiments of the present invention, but the present invention should not be limited to this embodiment and accompanying drawing institute is public The content opened, thus every without departing from the equivalence completed under spirit disclosed in this invention or amendment, both fall within present invention protection Scope.

Claims (9)

1. an alloy integrated die-casting vehicle frame, it is characterised in that: include the first vehicle frame pressing part (100), the second vehicle frame pressing part (200), first back rest pressing part (500) and second back rest pressing part (600), described first vehicle frame pressing part (100) and second Vehicle frame pressing part (200) is symmetrical structure, and described first vehicle frame pressing part (100) and the second vehicle frame pressing part (200) all include Front axle nip portion (210), front-axle beam nip portion (220), vehicle seat nip portion (230), underbeam nip portion (240) and back rest nip portion (250), the front axle nip portion (210) in described first vehicle frame pressing part (100), front-axle beam nip portion (220), vehicle seat nip portion (230), the front axle nip portion (210) in underbeam nip portion (240) respectively with the second vehicle frame pressing part (200), front-axle beam nip portion (220), the corresponding pressing and forming of vehicle seat nip portion (230), underbeam nip portion (240), in described first vehicle frame pressing part (100) Back rest nip portion (250) and the first back rest pressing part (500) pressing and forming, the back rest in described second vehicle frame pressing part (200) Nip portion (250) and the second back rest pressing part (600) pressing and forming;Described first vehicle frame pressing part (100) and the second vehicle frame pressure Front-axle beam nip portion (220) inner side of component (200) is provided with reinforcement (101), and described reinforcement (101) lower section is provided with benefit Strong ties plate (102);Described first vehicle frame pressing part (100) and the underbeam nip portion (240) of the second vehicle frame pressing part (200) and Back rest nip portion (250) inner side is provided with multiple reinforcement connecting tube (103) spaced apart.
Alloy integrated die-casting vehicle frame the most according to claim 1, it is characterised in that: described first vehicle frame pressing part (100) And second vehicle frame pressing part (200) vehicle seat nip portion (230) between be provided with the seat stays pipe for supporting seat (400)。
Alloy integrated die-casting vehicle frame the most according to claim 2, it is characterised in that: described first vehicle frame pressing part (100) And second vehicle frame pressing part (200) front axle nip portion (210) between be provided with and prop up stay tube for the front axle supporting headstock (300)。
Alloy integrated die-casting vehicle frame the most according to claim 3, it is characterised in that: described first back rest pressing part (500) Inner side is provided with reinforcement connecting tube (103), reinforcement connecting tube (103) that described first back rest pressing part (500) inner side is arranged and The reinforcement connecting tube (103) of the first vehicle frame pressing part (100) back rest nip portion (250) inner side is corresponding;Described second back rest pressure Component (600) inner side is provided with reinforcement connecting tube (103), and the reinforcement that described second back rest pressing part (600) inner side is arranged connects The reinforcement connecting tube (103) of pipe (103) and the second vehicle frame pressing part (200) back rest nip portion (250) inner side is corresponding.
Alloy integrated die-casting vehicle frame the most according to claim 4, it is characterised in that: described first vehicle frame pressing part (100) It is provided with axis installing hole (241) with underbeam nip portion (240) bottom of the second vehicle frame pressing part (200).
Alloy integrated die-casting vehicle frame the most according to claim 5, it is characterised in that: described first vehicle frame pressing part (100) It is provided with rear axle installing hole with back rest nip portion (250) end of the second vehicle frame pressing part (200).
Alloy integrated die-casting vehicle frame the most according to claim 6, it is characterised in that: described first vehicle frame pressing part (100), Second vehicle frame pressing part (200), first back rest pressing part (500) and second back rest pressing part (600) all use magnalium material Material.
8. the compression method of an alloy integrated die-casting vehicle frame, it is characterised in that comprise the steps:
S1,3D design: according to the requirement of vehicle frame, respectively by the first vehicle frame pressing part (100), the second vehicle frame pressing part (200), the One back rest pressing part (500) and the shape of second back rest pressing part (600) each parts and size are drawn, and design reinforcement (101), reinforcement connecting plate (102) and the reinforcement connecting tube (103) particular location in each parts;
S2, die sinking: according in step S1 draw drawing, be the first vehicle frame pressing part (100), the second vehicle frame pressing part (200), First back rest pressing part (500) and second back rest pressing part (600) offer independent shaping dies respectively;Simultaneously according to step S1 In vehicle frame overall diagram be that vehicle frame entirety offers matched moulds mould;
S3, melting: the mass percent of alloy is consisted of Mg12.5-20.5, Mn 0.4-0.8, Cr 0.01-0.03, La 0.2-0.6, Ce 0.2-0.6, Pr 0.06-0.2, Y 0.2-0.4, Zn 0.2-0.3, Sr 0.2-1.5, Cu 0.06-0.08, Surplus is Al dispensing, is delivered to respectively in the independent shaping dies offered respectively in step S2 be smelted into alloy, and producing is One vehicle frame pressing part (100), the second vehicle frame pressing part (200), first back rest pressing part (500) and the second back rest pressing part (600) independent pressing part;
S4, matched moulds: by the first vehicle frame pressing part (100) of melting, the second vehicle frame pressing part (200), first back rest in step S3 Pressing part (500), second back rest pressing part (600), front axle prop up stay tube (300) and seat stays pipe (400) is respectively placed in step In vehicle frame entirety matched moulds mould in rapid S2;
S5, gluing: the first vehicle frame pressing part (100), the second vehicle frame pressing part (200), first back rest pressing part (500), Two back rest pressing part (600), front axle prop up the end face of stay tube (300) and seat stays pipe (400) pressing and smear and prevent alloy components micro- The impregnating adhesive of hole seepage;
S6, pressing: painting is wiped each pressing part of impregnating adhesive under conditions of temperature 500-550 DEG C, pressure are 90-100MPa, Pressing is carried out in vehicle frame entirety matched moulds mould.
The compression method of alloy integrated die-casting vehicle frame the most according to claim 8, it is characterised in that: in described step S3, First by above-mentioned each raw material preheating at least 150 DEG C, then fine aluminium is placed in smelting furnace and is heated to 800850 DEG C, add subsequently Enter almag and cathode copper and be stirred continuously until almag and cathode copper all melts, be cooled to 750770 DEG C afterwards also Add alusil alloy and be stirred continuously until almag and all melt, be cooled to 680700 DEG C subsequently and pure magnesium is pressed To melt, maintain at least 5min, stir melt afterwards and be again warming up to 800850 DEG C, being simultaneously introduced refining agent and carry out essence Refining, after standing 8-9min, completes melting after inspection bath composition is qualified.
CN201610522034.6A 2016-07-05 2016-07-05 A kind of alloy integrated die-casting vehicle frame and its pressure casting method CN106114734B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610522034.6A CN106114734B (en) 2016-07-05 2016-07-05 A kind of alloy integrated die-casting vehicle frame and its pressure casting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610522034.6A CN106114734B (en) 2016-07-05 2016-07-05 A kind of alloy integrated die-casting vehicle frame and its pressure casting method

Publications (2)

Publication Number Publication Date
CN106114734A true CN106114734A (en) 2016-11-16
CN106114734B CN106114734B (en) 2018-11-06

Family

ID=57468551

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610522034.6A CN106114734B (en) 2016-07-05 2016-07-05 A kind of alloy integrated die-casting vehicle frame and its pressure casting method

Country Status (1)

Country Link
CN (1) CN106114734B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887687A (en) * 1987-06-19 1989-12-19 Honda Giken Kogyo Kabushiki Kaisha Motorcycle frame
US20040160036A1 (en) * 2003-02-14 2004-08-19 Ricardo Perez Bicycle frame with rear passive suspension
CN201172459Y (en) * 2008-01-24 2008-12-31 北京首特钢远东镁合金制品有限公司 Magnesium alloy integrated die-casting electric vehicle frame
CN201694322U (en) * 2010-01-22 2011-01-05 苏州仁和(老河口)汽车有限公司 Bicycle frame
CN102167118A (en) * 2011-03-23 2011-08-31 广州市银三环机械有限公司 Method for manufacturing frame of combined bicycle
CN205931120U (en) * 2016-07-05 2017-02-08 佛山市铭特铝业科技有限公司 Integrative die -casting frame of bicycle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887687A (en) * 1987-06-19 1989-12-19 Honda Giken Kogyo Kabushiki Kaisha Motorcycle frame
US20040160036A1 (en) * 2003-02-14 2004-08-19 Ricardo Perez Bicycle frame with rear passive suspension
CN201172459Y (en) * 2008-01-24 2008-12-31 北京首特钢远东镁合金制品有限公司 Magnesium alloy integrated die-casting electric vehicle frame
CN201694322U (en) * 2010-01-22 2011-01-05 苏州仁和(老河口)汽车有限公司 Bicycle frame
CN102167118A (en) * 2011-03-23 2011-08-31 广州市银三环机械有限公司 Method for manufacturing frame of combined bicycle
CN205931120U (en) * 2016-07-05 2017-02-08 佛山市铭特铝业科技有限公司 Integrative die -casting frame of bicycle

Also Published As

Publication number Publication date
CN106114734B (en) 2018-11-06

Similar Documents

Publication Publication Date Title
JP5836972B2 (en) Manufacturing method of L-shaped products
CN100485079C (en) Technique for processing titanium alloy sheet material
CN104526167B (en) Hydrogenation reactor cylinder electric smelting manufacturing process
CN101486087B (en) Casting and forging combined technique of aluminum alloy linkage rod
CN101912944B (en) Method for machining aluminum alloy hub
CN101918609B (en) Method for making parts with an insert made of a metal-matrix composite material
CN101850376B (en) Method and die for forward extrusion and variable diameter bending extrusion of magnesium alloy semi-solid billets
CN104745902B (en) High strength Al-Mg-Si-Cu alloy for bicycles and processing technology thereof
CN103406455B (en) A kind of SUV automobile rear end side tailgate back segment drawing and moulding mould
CN101829774B (en) Casting method of aluminum alloy wheel rim
CN102477507B (en) Preparation method of aluminum alloy casting rod special for hub of load truck
CN102319992B (en) Method for manufacturing aluminum alloy die forging
CN101880804B (en) Aluminum-magnetism aluminum alloy for automobile body plate of automobile and manufacturing method thereof
CN100392128C (en) Novel composite aluminium alloy plates and prepn. method
CN102328065B (en) Hot-top casting process of 7075 aluminium alloy round rod with diameter of phi582 mm
CN205453804U (en) Cell -phone and frame thereof
CN101817134A (en) Short-flow casting and rolling composite forming method for ferrule piece
KR101148064B1 (en) A method for manufacturing of frame for display using aluminum plate and extruded material
CN105671384A (en) Aluminum alloy and preparation method thereof
CN104874772B (en) The preparation method of high compactness pack alloy
CN103205612B (en) Aluminum alloy for automobile wheel hub and manufacturing process thereof
CN102303216B (en) Method for producing copper-clad aluminum bar
CN103084460B (en) Monolithic molding method of light duty truck weldless axle case
CN103056611A (en) Magnesium alloy automobile hub casting spinning compound molding method
CN102251158A (en) Aluminium alloy for vehicle hub and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant