CN106881565A - A kind of railway train body lightweight manufacture method - Google Patents
A kind of railway train body lightweight manufacture method Download PDFInfo
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- CN106881565A CN106881565A CN201710082976.1A CN201710082976A CN106881565A CN 106881565 A CN106881565 A CN 106881565A CN 201710082976 A CN201710082976 A CN 201710082976A CN 106881565 A CN106881565 A CN 106881565A
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- Prior art keywords
- magnesium alloy
- body framing
- framing
- lightweight
- fused solution
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/041—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures with bodies characterised by use of light metal, e.g. aluminium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention discloses a kind of railway train body lightweight manufacture method, the railway train body lightweight manufacture method is comprised the following steps that：S1：Body framing mould is built；S2：Lightweighting materials are selected and pretreatment；S3：Lightweighting materials are heat-treated；S4：Body framing modelling；S5：Lightweight body framing is surface-treated；S6：Assembling and examination.The present invention goes out integrated magnesium alloy train body by Mold Making, greatly improve the manufacture efficiency of car body, by vacuum extractor, so that body framing dies cavity forms negative-pressure vacuum, it is easy to inject magnesium alloy fused solution, and the bubble breaking that can make in magnesium alloy fused solution, improve the Forming Quality of body framing model.
Description
Technical field
The invention belongs to car body lightweight manufacture method technical field, and in particular to a kind of railway train body lightweight system
Make method.
Background technology
Rail vehicle transportation equipment lightweight is one of key element of high speed.New material, new design, coming of new technology are rails
The light-weighted main path of road train.Composite, novel aluminum alloy, high-strength magnesium alloy are applied to track train equipment system
Make, be the comprehensive significant challenges such as design, material, manufacturing technology, safe evaluation method, LCA analyses.
Existing railway train body weight is big, and more energy can be undoubtedly expended during frequently start-stop.And magnesium is closed
New material rare application in track transportation equipment of gold this most lightweight feature, from mechanical property, is processed into
Type characteristic, resource reclaim, Environmental compatibility, manufacturing cost, application security are angularly investigated, and magnesium alloy is all potential rail
Road train new material, is rail vehicle transportation equipment light-weighted it is further preferred that selection.Closed based on abundant magnesium resource and excellent magnesium
Golden material supply, is that magnesium alloy makes lightweight railway train body with reference to wide rail vehicle transportation application space
There is provided realistic possibility.
The content of the invention
It is an object of the invention to provide a kind of railway train body lightweight manufacture method, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the present invention provides following technical scheme：A kind of railway train body lightweight manufacture method,
The railway train body lightweight manufacture method is comprised the following steps that：
S1：Body framing mould is built, and according to the design drawing of train body, according to the dimensioning of design drawing, produces whole
The body framing mould of car, the body framing mould to building completion carries out pre-manufactured test, and survey is at least produced using metallic aluminium
Body framing model on probation 3 times, the body framing size after measurement shaping, and measurement data is recorded, final value is 3 mappings
Average value and design drawing design size contrast, it is ensured that the degree of accuracy of mapped results, measurement error is no more than design G- Design chi
Very little 3/1000ths；
S2：Lightweighting materials are selected and pre-processed, from magnesium alloy as the raw material for making body framing, first to magnesium alloy
The foreign matter on surface is cleared up, including oil stain, water mark, dust, and magnesium alloy material surface is beaten using sander afterwards
Mill, removes oxidized top layer；
S3：Lightweighting materials are heat-treated, and heating fusing is carried out to completing pretreated magnesium alloy in S2 using intermediate-frequency heating furnace,
Melt temperature is 700 DEG C, and when temperature is more than 350 DEG C in intermediate-frequency heating furnace, it will internally supplement protective gas；
S4：Body framing modelling, the magnesium alloy fused solution in S3 is cooled to after 600 DEG C the body framing being injected into S1
In mould, after the completion of the injection of magnesium alloy fused solution, when magnesium alloy fused solution naturally cools to room temperature, the demoulding is carried out, obtain light
Quantify body framing；
S5：Lightweight body framing is surface-treated, and the lightweight body framing to being obtained in S4 carries out corner sanding burr processing,
Afterwards to the surface of lightweight body framing successively anticorrosion with painting coating and wear-resistant coating；
S6：Assembling with check and accept, surface treated lightweight body framing in S5 is carried out vehicle body side wall and carbody canopy and
The assembling of vehicle body bottom frame, main on vehicle body side wall to install car door, side window, seat and built-in plate etc., carbody canopy is covered in car body
On side wall, for encapsulating vehicle body side wall, carbody canopy is mainly used in hanging roof apparatus, such as air-conditioning, air channel, built-in beam in length and breadth
Deng, assembling complete it is qualified by inspection after dispatch from the factory.
Preferably, the body framing dies cavity in the step S1 is connected with vacuum extractor so that body framing mould
Tool inner chamber forms negative-pressure vacuum, is easy to inject magnesium alloy fused solution, and can make the bubble breaking in magnesium alloy fused solution, improves
The Forming Quality of body framing model.
Preferably, the outside of the body framing mould in the step S1 is provided with heater, and the heater is
Electromagnetic heating coil, and heating-up temperature is 600 DEG C, it is to avoid magnesium alloy fused solution coagulates during body framing mould is injected
Gu, improve the injection efficiency of magnesium alloy fused solution.
Preferably, the grinding depth in the step S2 is 0.5mm, and polishing rotating speed is 8000r/min.
Preferably, the protective gas in the step S3 is SF6 or N2, it is to avoid air is mixed into intermediate-frequency heating furnace and causes magnesium
There is oxidation with oxygen in alloy molten liquid.
Preferably, magnesium alloy is raised to the time required to 350 DEG C control at 18 hours from normal temperature in the step S3, magnesium alloy from
350 DEG C were raised to 700 DEG C of required time controls at 6 hours, and the fused solution soaking time of magnesium alloy is 1 hour, and holding temperature is
700℃。
Compared with prior art, the beneficial effects of the invention are as follows：The present invention, using magnesium alloy as train body lightweight
Making material, from mechanical property, machine-shaping characteristic, resource reclaim, Environmental compatibility, manufacturing cost, application security isogonism
Degree is investigated, can be light-weighted as rail vehicle transportation equipment it is further preferred that selection, can play more significantly energy-saving and emission-reduction, protection
The benefit of environment；Integrated magnesium alloy train body is gone out by Mold Making, the manufacture efficiency of car body is greatly improved, passed through
Vacuum extractor so that body framing dies cavity forms negative-pressure vacuum, is easy to inject magnesium alloy fused solution, and can close magnesium
Bubble breaking in golden fused solution, improves the Forming Quality of body framing model.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Embodiment 1
S1：Body framing mould is built, and according to the design drawing of train body, according to the dimensioning of design drawing, produces whole
The body framing mould of car, the body framing mould to building completion carries out pre-manufactured test, and survey is at least produced using metallic aluminium
Body framing model on probation 3 times, the body framing size after measurement shaping, and measurement data is recorded, final value is 3 mappings
Average value and design drawing design size contrast, it is ensured that the degree of accuracy of mapped results, measurement error is no more than design G- Design chi
Very little 3/1000ths；
S2：Lightweighting materials are selected and pre-processed, from magnesium alloy as the raw material for making body framing, first to magnesium alloy
The foreign matter on surface is cleared up, including oil stain, water mark, dust, and magnesium alloy material surface is beaten using sander afterwards
Mill, removes oxidized top layer；
S3：Lightweighting materials are heat-treated, and heating fusing is carried out to completing pretreated magnesium alloy in S2 using intermediate-frequency heating furnace,
Melt temperature is 700 DEG C, and when temperature is more than 350 DEG C in intermediate-frequency heating furnace, it will internally supplement protective gas；
S4：Body framing modelling, the magnesium alloy fused solution in S3 is cooled to after 600 DEG C the body framing being injected into S1
In mould, after the completion of the injection of magnesium alloy fused solution, when magnesium alloy fused solution naturally cools to room temperature, the demoulding is carried out, obtain light
Quantify body framing；
S5：Lightweight body framing is surface-treated, and the lightweight body framing to being obtained in S4 carries out corner sanding burr processing,
Afterwards to the surface of lightweight body framing successively anticorrosion with painting coating and wear-resistant coating；
S6：Assembling with check and accept, surface treated lightweight body framing in S5 is carried out vehicle body side wall and carbody canopy and
The assembling of vehicle body bottom frame, main on vehicle body side wall to install car door, side window, seat and built-in plate etc., carbody canopy is covered in car body
On side wall, for encapsulating vehicle body side wall, carbody canopy is mainly used in hanging roof apparatus, such as air-conditioning, air channel, built-in beam in length and breadth
Deng, assembling complete it is qualified by inspection after dispatch from the factory.
Body framing dies cavity in the step S1 is connected with vacuum extractor so that body framing dies cavity shape
Into negative-pressure vacuum, it is easy to inject magnesium alloy fused solution, and the bubble breaking in magnesium alloy fused solution can be made, improves body framing
The Forming Quality of model.
The outside of the body framing mould in the step S1 is provided with heater, and the heater is Electromagnetic Heating
Coil, and heating-up temperature is 600 DEG C, it is to avoid magnesium alloy fused solution solidifies during body framing mould is injected, and improves magnesium
The injection efficiency of alloy molten liquid.
Grinding depth in the step S2 is 0.5mm, and polishing rotating speed is 8000r/min.
Protective gas in the step S3 is SF6 or N2, it is to avoid air is mixed into intermediate-frequency heating furnace and causes magnesium alloy to melt
Melt liquid and oxidation occurs with oxygen.
At 18 hours, magnesium alloy rose from 350 DEG C for control the time required to magnesium alloy is raised to 350 DEG C from normal temperature in the step S3
To 700 DEG C of required time controls at 6 hours, and the fused solution soaking time of magnesium alloy is 1 hour, and holding temperature is 700 DEG C.
Embodiment 2
S1：Body framing mould is built, and according to the design drawing of train body, according to the dimensioning of design drawing, produces whole
The body framing mould of car, the body framing mould to building completion carries out pre-manufactured test, and survey is at least produced using metallic aluminium
Body framing model on probation 3 times, the body framing size after measurement shaping, and measurement data is recorded, final value is 3 mappings
Average value and design drawing design size contrast, it is ensured that the degree of accuracy of mapped results, measurement error is no more than design G- Design chi
Very little 3/1000ths；
S2：Lightweighting materials are selected and pre-processed, from magnesium alloy as the raw material for making body framing, first to magnesium alloy
The foreign matter on surface is cleared up, including oil stain, water mark, dust, and magnesium alloy material surface is beaten using sander afterwards
Mill, removes oxidized top layer；
S3：Lightweighting materials are heat-treated, and heating fusing is carried out to completing pretreated magnesium alloy in S2 using intermediate-frequency heating furnace,
Melt temperature is 750 DEG C, and when temperature is more than 350 DEG C in intermediate-frequency heating furnace, it will internally supplement protective gas；
S4：Body framing modelling, the magnesium alloy fused solution in S3 is cooled to after 650 DEG C the body framing being injected into S1
In mould, after the completion of the injection of magnesium alloy fused solution, when magnesium alloy fused solution naturally cools to room temperature, the demoulding is carried out, obtain light
Quantify body framing；
S5：Lightweight body framing is surface-treated, and the lightweight body framing to being obtained in S4 carries out corner sanding burr processing,
Afterwards to the surface of lightweight body framing successively anticorrosion with painting coating and wear-resistant coating；
S6：Assembling with check and accept, surface treated lightweight body framing in S5 is carried out vehicle body side wall and carbody canopy and
The assembling of vehicle body bottom frame, main on vehicle body side wall to install car door, side window, seat and built-in plate etc., carbody canopy is covered in car body
On side wall, for encapsulating vehicle body side wall, carbody canopy is mainly used in hanging roof apparatus, such as air-conditioning, air channel, built-in beam in length and breadth
Deng, assembling complete it is qualified by inspection after dispatch from the factory.
Body framing dies cavity in the step S1 is connected with vacuum extractor so that body framing dies cavity shape
Into negative-pressure vacuum, it is easy to inject magnesium alloy fused solution, and the bubble breaking in magnesium alloy fused solution can be made, improves body framing
The Forming Quality of model.
The outside of the body framing mould in the step S1 is provided with heater, and the heater is Electromagnetic Heating
Coil, and heating-up temperature is 650 DEG C, it is to avoid magnesium alloy fused solution solidifies during body framing mould is injected, and improves magnesium
The injection efficiency of alloy molten liquid.
Grinding depth in the step S2 is 0.5mm, and polishing rotating speed is 8000r/min.
Protective gas in the step S3 is SF6 or N2, it is to avoid air is mixed into intermediate-frequency heating furnace and causes magnesium alloy to melt
Melt liquid and oxidation occurs with oxygen.
At 18 hours, magnesium alloy rose from 350 DEG C for control the time required to magnesium alloy is raised to 350 DEG C from normal temperature in the step S3
To 750 DEG C of required time controls at 6 hours, and the fused solution soaking time of magnesium alloy is 0.5 hour, and holding temperature is 750 DEG C.
Embodiment 3
S1：Body framing mould is built, and according to the design drawing of train body, according to the dimensioning of design drawing, produces whole
The body framing mould of car, the body framing mould to building completion carries out pre-manufactured test, and survey is at least produced using metallic aluminium
Body framing model on probation 3 times, the body framing size after measurement shaping, and measurement data is recorded, final value is 3 mappings
Average value and design drawing design size contrast, it is ensured that the degree of accuracy of mapped results, measurement error is no more than design G- Design chi
Very little 3/1000ths；
S2：Lightweighting materials are selected and pre-processed, from magnesium alloy as the raw material for making body framing, first to magnesium alloy
The foreign matter on surface is cleared up, including oil stain, water mark, dust, and magnesium alloy material surface is beaten using sander afterwards
Mill, removes oxidized top layer；
S3：Lightweighting materials are heat-treated, and heating fusing is carried out to completing pretreated magnesium alloy in S2 using intermediate-frequency heating furnace,
Melt temperature is 650 DEG C, and when temperature is more than 350 DEG C in intermediate-frequency heating furnace, it will internally supplement protective gas；
S4：Body framing modelling, the magnesium alloy fused solution in S3 is cooled to after 585 DEG C the body framing being injected into S1
In mould, after the completion of the injection of magnesium alloy fused solution, when magnesium alloy fused solution naturally cools to room temperature, the demoulding is carried out, obtain light
Quantify body framing；
S5：Lightweight body framing is surface-treated, and the lightweight body framing to being obtained in S4 carries out corner sanding burr processing,
Afterwards to the surface of lightweight body framing successively anticorrosion with painting coating and wear-resistant coating；
S6：Assembling with check and accept, surface treated lightweight body framing in S5 is carried out vehicle body side wall and carbody canopy and
The assembling of vehicle body bottom frame, main on vehicle body side wall to install car door, side window, seat and built-in plate etc., carbody canopy is covered in car body
On side wall, for encapsulating vehicle body side wall, carbody canopy is mainly used in hanging roof apparatus, such as air-conditioning, air channel, built-in beam in length and breadth
Deng, assembling complete it is qualified by inspection after dispatch from the factory.
Body framing dies cavity in the step S1 is connected with vacuum extractor so that body framing dies cavity shape
Into negative-pressure vacuum, it is easy to inject magnesium alloy fused solution, and the bubble breaking in magnesium alloy fused solution can be made, improves body framing
The Forming Quality of model.
The outside of the body framing mould in the step S1 is provided with heater, and the heater is Electromagnetic Heating
Coil, and heating-up temperature is 585 DEG C, it is to avoid magnesium alloy fused solution solidifies during body framing mould is injected, and improves magnesium
The injection efficiency of alloy molten liquid.
Grinding depth in the step S2 is 0.5mm, and polishing rotating speed is 8000r/min.
Protective gas in the step S3 is SF6 or N2, it is to avoid air is mixed into intermediate-frequency heating furnace and causes magnesium alloy to melt
Melt liquid and oxidation occurs with oxygen.
At 18 hours, magnesium alloy rose from 350 DEG C for control the time required to magnesium alloy is raised to 350 DEG C from normal temperature in the step S3
To 650 DEG C of required time controls at 6 hours, and the fused solution soaking time of magnesium alloy is 1.5 hours, holding temperature was 650 DEG C.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (6)
1. a kind of railway train body lightweight manufacture method, it is characterised in that：Railway train body lightweight manufacture method
Comprise the following steps that：
S1：Body framing mould is built, and according to the design drawing of train body, according to the dimensioning of design drawing, produces whole
The body framing mould of car, the body framing mould to building completion carries out pre-manufactured test, and survey is at least produced using metallic aluminium
Body framing model on probation 3 times, the body framing size after measurement shaping, and measurement data is recorded, final value is 3 mappings
Average value and design drawing design size contrast, it is ensured that the degree of accuracy of mapped results, measurement error is no more than design G- Design chi
Very little 3/1000ths；
S2：Lightweighting materials are selected and pre-processed, from magnesium alloy as the raw material for making body framing, first to magnesium alloy
The foreign matter on surface is cleared up, including oil stain, water mark, dust, and magnesium alloy material surface is beaten using sander afterwards
Mill, removes oxidized top layer；
S3：Lightweighting materials are heat-treated, and heating fusing is carried out to completing pretreated magnesium alloy in S2 using intermediate-frequency heating furnace,
Melt temperature is 700 DEG C, and when temperature is more than 350 DEG C in intermediate-frequency heating furnace, it will internally supplement protective gas；
S4：Body framing modelling, the magnesium alloy fused solution in S3 is cooled to after 600 DEG C the body framing being injected into S1
In mould, after the completion of the injection of magnesium alloy fused solution, when magnesium alloy fused solution naturally cools to room temperature, the demoulding is carried out, obtain light
Quantify body framing；
S5：Lightweight body framing is surface-treated, and the lightweight body framing to being obtained in S4 carries out corner sanding burr processing,
Afterwards to the surface of lightweight body framing successively anticorrosion with painting coating and wear-resistant coating；
S6：Assembling with check and accept, surface treated lightweight body framing in S5 is carried out vehicle body side wall and carbody canopy and
The assembling of vehicle body bottom frame, main on vehicle body side wall to install car door, side window, seat and built-in plate etc., carbody canopy is covered in car body
On side wall, for encapsulating vehicle body side wall, carbody canopy is mainly used in hanging roof apparatus, such as air-conditioning, air channel, built-in beam in length and breadth
Deng, assembling complete it is qualified by inspection after dispatch from the factory.
2. a kind of railway train body lightweight manufacture method according to claim 1, it is characterised in that：The step S1
In body framing dies cavity be connected with vacuum extractor so that body framing dies cavity formed negative-pressure vacuum, be easy to note
Enter magnesium alloy fused solution, and the bubble breaking in magnesium alloy fused solution can be made, improve the Forming Quality of body framing model.
3. a kind of railway train body lightweight manufacture method according to claim 1, it is characterised in that：The step S1
In the outside of body framing mould be provided with heater, the heater is electromagnetic heating coil, and heating-up temperature is
600 DEG C, it is to avoid magnesium alloy fused solution solidifies during body framing mould is injected, improve the injection effect of magnesium alloy fused solution
Rate.
4. a kind of railway train body lightweight manufacture method according to claim 1, it is characterised in that：The step S2
In grinding depth be 0.5mm, polishing rotating speed be 8000r/min.
5. a kind of railway train body lightweight manufacture method according to claim 1, it is characterised in that：The step S3
In protective gas be SF6 or N2, it is to avoid air is mixed into intermediate-frequency heating furnace and causes magnesium alloy fused solution to be aoxidized with oxygen
Effect.
6. a kind of railway train body lightweight manufacture method according to claim 1, it is characterised in that：The step S3
Middle magnesium alloy was controlled at 18 hours the time required to being raised to 350 DEG C from normal temperature, and magnesium alloy is controlled the time required to 700 DEG C are raised to from 350 DEG C
System was at 6 hours, and the fused solution soaking time of magnesium alloy is 1 hour, and holding temperature is 700 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710082976.1A CN106881565A (en) | 2017-02-16 | 2017-02-16 | A kind of railway train body lightweight manufacture method |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201710082976.1A CN106881565A (en) | 2017-02-16 | 2017-02-16 | A kind of railway train body lightweight manufacture method |
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Family
ID=59179299
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| CN201710082976.1A Pending CN106881565A (en) | 2017-02-16 | 2017-02-16 | A kind of railway train body lightweight manufacture method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107813507A (en) * | 2017-10-23 | 2018-03-20 | 中车长春轨道客车股份有限公司 | Tramcar lightweight composite roof adhering method |
| CN109263669A (en) * | 2018-09-14 | 2019-01-25 | 中铁第四勘察设计院集团有限公司 | A kind of manufacturing process of administrative region of a city railroad car |
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Application publication date: 20170623 |