CN109746770A - A kind of technological method for processing vehicle timber support - Google Patents
A kind of technological method for processing vehicle timber support Download PDFInfo
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- CN109746770A CN109746770A CN201711085005.9A CN201711085005A CN109746770A CN 109746770 A CN109746770 A CN 109746770A CN 201711085005 A CN201711085005 A CN 201711085005A CN 109746770 A CN109746770 A CN 109746770A
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Abstract
The present invention relates to a kind of technological method for processing vehicle timber support, the weldering of adjusting group is carried out to the metal blank of car structure first, then first time polishing treatment is carried out, it detects a flaw to welding position, framework is finished again, carrying out secondary group of weldering according to the design needs, components group is welded on each pedestal of framework, then second of polishing treatment is carried out again, remove greasy dirt, oxide skin and the dirt on each framework surface, to each framework surface spray-applied primer and finishing coat after dust removal process, finally each framework for having carried out spray treatment is assembled.The present invention is used first to process and be polished afterwards, the processing technology of integral spray assembling again, framework metal surface can be made flat and smooth, reach the requirement of surface roughness, while making metal surface that there is certain roughness again, improve paint adhesion, keep lacquer painting flat and smooth, ensure that the presentation quality of product, while also reducing labor intensity of workers and production cost, process flow is rationally reliable, improves production efficiency.
Description
Technical field
The present invention relates to a kind of technological method for processing vehicle timber support, belong to technical field of mechanical processing.
Background technique
At present in the actual production process of rolling stock framework, the processing technology generallyd use is: to car structure
Adjusting group postwelding is carried out, Shot Blasting, spray-applied primer is carried out, then finish to component, removes the greasy dirt of component surface, it is right
The priming paint destroyed in process carries out touch-up paint, then each component processed is assembled, finally to component integral spray finishing coat
Processing technology.Deficiency using this processing technology is, goes oil removing in the component surface to spray-applied primer
When dirty, alkaline solution or solvent or diluent are generally used, is also had centainly to the priming paint for being sprayed on component surface while degreasing
Corrosiveness, in this way when to component spray paint, not only the surface quality of finishing coat is low, and in addition the adhesive force of finishing coat also has
Declined, and the activity duration is long, and causes certain environmental pollution；It finishes, adds again after to component spray-applied primer
The destruction that will cause part priming paint during work, needs to carry out artificial touch-up paint, additionally, due to the relatively light of the metal surface after processing
Sliding, the adhesive force of paint can also reduce, not only increase production cost in this way, increase the labor intensity of worker, while also shadow
The presentation quality of entire car structure is rung.It is therefore expected that have it is a kind of can improve product appearance quality, improve production effect
Rate reduces labor intensity of workers, reduces the technological method for processing vehicle timber support substitution above method of production cost.
Summary of the invention
To solve the above-mentioned problems and insufficient, the invention proposes a kind of framework processing technology, and production can be improved
Product presentation quality improves production efficiency, reduces labor intensity of workers, reduces production cost.
To achieve the above object, the technological method for processing vehicle timber support the following steps are included:
1) adjusting is carried out to the metal blank of car structure, and is assembled and is welded；
2) first time polishing treatment, scale removal detect a flaw to welding position, repair welding；
3) framework through group postwelding is finished, is processed into the shape and size for meeting design requirement；
4) secondary group of weldering is carried out according to the design needs, each components is assembled on each pedestal of framework, and and tube chamber welds with base；
5) second of Shot Blasting removes greasy dirt, oxide skin and the dirt on framework surface；
6) processing is dusted to framework surface；
8) it to framework surface spray paint, is dried later；
9) framework for having carried out spray treatment is assembled.
In the progress first time and second of Shot Blasting, using the shot of diameter l~2mm, ejection velocity is
The ball blast time of 80~100 meter per seconds, first time Shot Blasting is less than or equal to 5 minutes, the ball blast time of second of Shot Blasting
More than or equal to 20 minutes.Shot Blasting twice also respectively can be in such a way that shot be mixed with steel wire section, steel wire Duan Yugang
The ratio of number of ball is 3:1, and the diameter of steel wire section is 1mm, and the length of steel wire section is l~2mm.
Framework metal surface can effectively remove the oxide skin of face of weld after Shot Blasting of the mat woven of fine bamboo strips in this way, full
The flaw detection requirement of sufficient face of weld, finds out solder skip, rosin joint, carries out repair welding in time.Second of ball blast is being passed through in framework metal surface
After processing, smooth surface, effect is more preferable, and the roughness of framework metal surface can further decrease, and reaches rough surface
The requirement of degree.
When carrying out second of Shot Blasting, surface of the surface roughness requirements greater than or equal to 7um is carried out at ball blast
Reason is lower than surface roughness requirements on the surface of 7um, and before carrying out second of Shot Blasting, these surfaces are protected
Cover carries out protective treatment.
By second of Shot Blasting process, since the ball blast time is longer, greasy dirt, the oxidation on framework surface have been effectively removed
Skin and dirt not only make the metal surface of framework flat and smooth, reach the requirement of Metal Surface Roughness, can also make framework table
Face has certain roughness, improves the paint adhesion of these metal surfaces, in this way in following spray-applied primer and finishing coat
When, lacquer painting will be flat and smooth, ensure that the presentation quality of product, improves product specification.
The process flow and technological parameter of the spray-applied primer and finishing coat and drying are consistent with the prior art.
The processing technology side of the car structure of to sum up content, ball blast after present invention use is first processed, then integral spray assembling
Method, compared with prior art the advantages of be: framework metal surface can be made flat and smooth, reach the requirement of surface roughness, together
When make metal surface that there is certain roughness again, improve paint adhesion, keep lacquer painting flat and smooth, ensure that the outer of product
Appearance quality improves product specification；(2) using greasy dirt, oxide skin and the dirt of ball blast technique removal framework metal surface, have
Effect avoids in traditional handicraft, corrosion while being degreased using alkaline solution to the priming paint for being sprayed on framework surface
Effect, shortens the activity duration of worker, will not pollute the environment；(3) artificial touch-up paint in traditional handicraft is omitted
Process reduces labor intensity of workers, reduces production cost, also ensure that the presentation quality of product simultaneously；(4) due to using
The process flow assembled again is first sprayed, improves the degree of modularity of components, is conducive to the later period assembling of car structure；
(5) process flow is more rationally reliable, improves production efficiency.
Specific embodiment
Below with reference to embodiment, present invention is further described in detail:
Adjusting is carried out to the metal blank of car structure, and is assembled and is welded；First time Shot Blasting, use diameter for
The shot of 1mm, ejection velocity are 100 meter per seconds, and the ball blast time is 5 minutes, the oxide skin of face of weld are removed, to welding position
It detects a flaw, repair welding is carried out to the position of solder skip and rosin joint；Framework through group postwelding is finished, is processed into and meets design
It is required that shape and size；Secondary group of weldering is carried out according to the design needs, and each components are assembled on each pedestal of framework, and with
Tube chamber welds with base；
Second of Shot Blasting, only in body frame such as: lateral surface, air spring face, gear box bracket plane in registration arm
With hole, journal box spring face, journal box spring face upper cover plate reference seat plane and 105 size facades, vertical damper holder medial surface etc.
Surface roughness requirements carry out Shot Blasting on the surface of 7um or more, to other surface roughness requirements on the surface below 7um
Protective treatment is carried out with shield；When polishing treatment, in such a way that shot is mixed with steel wire section, the quantity of steel wire section and shot
The ratio between be 3:1, the diameter of steel wire section is 1mm, and the length of steel wire section is 1mm, and shot diameter is 2mm, ejection velocity is 100 meters/
Second, the ball blast time is 30 minutes, and the different shot of this large amount of diameter and steel wire rapid lapse of time act on metal surface, so that it may
Greasy dirt, oxide skin and the dirt for effectively removing framework surface, keep framework metal surface flat and smooth, reach wanting for roughness
It asks；After such second of polishing treatment, such as roughness of original framework metal surface is 50um, reachable after Shot Blasting
To 12.5um;If the roughness of original framework metal surface is 12.5um, 7um can reach after Shot Blasting；Utilize compressed air
Processing is dusted to framework surface；It to framework surface spray-applied primer, is dried later, the technique stream for spraying and drying
Journey and technological parameter are consistent with the prior art；Finally the framework for having carried out spray treatment is assembled.
Claims (4)
1. a kind of technological method for processing vehicle timber support, it is characterised in that: the technique the following steps are included:
1) adjusting is carried out to the metal blank of car structure, and is assembled and is welded；
2) first time Shot Blasting, scale removal detect a flaw to welding position, repair welding；
3) framework through group postwelding is finished, is processed into the shape and size for meeting design requirement；
4) secondary group of weldering is carried out according to the design needs, each components is assembled on each pedestal of framework, and and tube chamber welds with base；
5) second of Shot Blasting removes greasy dirt, oxide skin and the dirt on framework surface；
6) processing is dusted to framework surface；
7) it to framework surface spray-applied primer, is dried later；
8) it to framework surface spray paint, is dried later；
9) framework for having carried out spray treatment is assembled；
Wherein, when carrying out the first time and second of Shot Blasting, the shot of diameter l~2mm, ejection velocity is respectively adopted
For 80~100 meter per seconds, the ball blast time of first time Shot Blasting is less than or equal to 5 minutes, when the ball blast of second of Shot Blasting
Between be greater than or equal to 20 minutes.
2. a kind of technological method for processing vehicle timber support according to claim l, it is characterised in that: carrying out the first time
, also respectively can be in such a way that shot be mixed with steel wire section when with second of Shot Blasting, the quantity of steel wire section and shot
The ratio between be 3:1, the diameter of steel wire section is 1mm, and the length of steel wire section is l~2mm.
3. according to a kind of technological method for processing vehicle timber support of claim l or 2, it is characterised in that: carrying out described second
When Shot Blasting, the metal surface to surface roughness requirements greater than or equal to 7 u m carries out Shot Blasting.
4. according to a kind of technological method for processing vehicle timber support of claim l or 2, it is characterised in that: carrying out described second
Before Shot Blasting, the metal surface to surface roughness requirements lower than 7 u m carries out protective treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711085005.9A CN109746770A (en) | 2017-11-07 | 2017-11-07 | A kind of technological method for processing vehicle timber support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711085005.9A CN109746770A (en) | 2017-11-07 | 2017-11-07 | A kind of technological method for processing vehicle timber support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109746770A true CN109746770A (en) | 2019-05-14 |
Family
ID=66401129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711085005.9A Pending CN109746770A (en) | 2017-11-07 | 2017-11-07 | A kind of technological method for processing vehicle timber support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109746770A (en) |
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2017
- 2017-11-07 CN CN201711085005.9A patent/CN109746770A/en active Pending
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190514 |