CN107390474B - A kind of preparation process of aluminium door sill panel - Google Patents

A kind of preparation process of aluminium door sill panel Download PDF

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Publication number
CN107390474B
CN107390474B CN201710431031.6A CN201710431031A CN107390474B CN 107390474 B CN107390474 B CN 107390474B CN 201710431031 A CN201710431031 A CN 201710431031A CN 107390474 B CN107390474 B CN 107390474B
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blank
door sill
ink
film
aluminium door
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CN107390474A (en
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石丽娜
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Ningbo Xintai Machinery Co Ltd
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Ningbo Xintai Machinery Co Ltd
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/20Exposure; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00Other methods for working sheet metal, metal tubes, metal profiles
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/26Processing photosensitive materials; Apparatus therefor

Abstract

The present invention relates to a kind of preparation process of Vehicular doorsill panel more particularly to a kind of preparation processes of aluminium door sill panel, belong to automobile parts preparation technical field.The preparation process is the following steps are included: blank pretreatment and the printing film;The film after printing is fixed on pretreated blank, is exposed and the removal ink that develops;Blank after the removal ink that develops is subjected to mechanical etching wire drawing and removal ink;Aluminium door sill panel is made by punch forming in blank after mechanical etching wire drawing and removal ink.The present invention is combined using etch process with punch forming process, it first passes through to be etched in and forms required figure or text on blank, then required pattern or text are formed by punching press, make pattern or text after molding on the whole and depth or the mellow and full transition of short transverse, that is band technique " R ", and it is high without transition defect, precision.

Description

A kind of preparation process of aluminium door sill panel
Technical field
The present invention relates to a kind of preparation process of Vehicular doorsill panel more particularly to a kind of preparation works of aluminium door sill panel Skill belongs to automobile parts preparation technical field.
Background technique
Vehicular doorsill panel is also known as meeting pedal, is mainly made of materials such as stainless steel, aluminium alloys, for decorating car door Protection and beautification car body are played the role of in sill position.In order to highlight entire vehicle design concept and vehicle be allowed to give deep impression, Usually require layout or text on threshold panel.
Currently, this text for playing mark and beautification function and pattern mostly pass through mechanical polishing, milling, punching press etc. Mechanical processing technique is realized.But due to narrow, the thin feature of threshold panel, and design the artistic effect to pattern and text Requirement, such as color light and shade, minutia mellow and full transition, without transition defect, precision height etc..Lead to mechanical polishing, milling It cuts, the mechanical processing techniques such as punching press are unable to satisfy the demand of design.It is, thus, sought for new process solves problem above.
Summary of the invention
The purpose of the present invention is be directed to the above-mentioned problems in the prior art, propose a kind of etch process and strike out The preparation process for the aluminium door sill panel that type combines.
Object of the invention can be realized by the following technical scheme: a kind of preparation process of aluminium door sill panel, the system Standby technique the following steps are included:
S1, blank pretreatment and the printing film;
S2, the film after printing is fixed on pretreated blank, is exposed and the removal ink that develops;
S3, the blank after the removal ink that develops is subjected to mechanical etching wire drawing and removal ink;
S4, aluminium door sill panel is made by punch forming in the blank after mechanical etching wire drawing and removal ink.
Etch process is a kind of not only ancient but also novel, the not only common but also technology at tip.Now numerous building decoration The product design of the industries such as material, electronic product, automobile mechanical uses etch process more and more to solve artistic requirement, solves It has determined the insurmountable problem of the mechanical processing techniques such as mechanical polishing, milling, punching press.
The present invention is combined using etch process with punch forming process, and is controlled respectively to etching and punching course System.The figure etched or text will be needed to print to the film film first.Then the film after printing is fixed on pre- place It is exposed on blank after reason, the blank that when exposure corresponds at film black is not photosensitive, the blank at corresponding film light transmission Photosensitive, polymerization reaction occurs for the ink at the photosensitive place of blank.Then pass through developing machine, by the not developed liquid of photosensitive ink on blank It dissolves, and removal is not dissolved by the photosensitive developed solution of ink, need the figure etched or text to pass through exposure in this way and turn It moves on on blank.Finally by subsequent punch forming process, required pattern or text punch forming are formed, pattern is made Or text is on the whole and depth or the mellow and full transition of short transverse, i.e. band technique " R ", and high without transition defect, precision.
In a kind of preparation process of above-mentioned aluminium door sill panel, the blank is a line aluminium alloy.Etch process processing Requirement to aluminum alloy materials is relatively high, and material selection is improper, final product the defects of there are color difference.The system that the present invention selects Aluminium alloy relatively be suitble to etch process, after etching ensure that no color differnece defect, effect are best substantially.The present invention is further preferred For 1050 aluminium alloys, 1050 aluminium alloys are by following mass percent at being grouped as: Si≤0.25%, Cu≤0.05%, Mg≤ 0.05%, Zn≤0.05%, Mn≤0.05%, Ti≤0.03%, V≤0.05%, Fe≤0.4%, surplus are Al and can not The impurity element avoided.Still more preferably 1050 aluminium alloys are by following mass percent at being grouped as: Si:0.088%, Cu: 0.002%, Mg:0.002%, Zn:0.008%, Mn:0.002%, Ti:0.01%, V:0.011%, Fe:0.32%, surplus are Al and inevitable impurity element.
In a kind of preparation process of above-mentioned aluminium door sill panel, the blank pretreatment includes the cleaning of blank, wet coating And prebake.Etching products are very high to the cleannes requirement of environment, if not carrying out the pretreatment such as cleaning before the etch to blank, Product will appear show-through or bright spot defect.
In a kind of preparation process of above-mentioned aluminium door sill panel, the material of the wet coating is ink, the oil that wet coating obtains Ink with a thickness of 0.03-0.05mm.The present invention is coated with certain thickness ink using wet film technique on blank, to guarantee that it is anti- Etching performance plays masking and requires, be used for exposure development, protects developing location.
In a kind of preparation process of above-mentioned aluminium door sill panel, the temperature of the prebake is 85-95 DEG C, soaking time For 10-20min.The temperature of prebake of the present invention can will be contained to avoid the thermosetting property of ink by prebake in ink Organic solvent vapor away, to guarantee that blank will not destroy the film when fixed with the film.The present invention is further preferably wet Product is stood 5 minutes or so before Tu Hou, prebake, guarantees that the shrinkage cavity in ink film eliminates by the levelability of ink, makes Ink coating is uniform, pore-free etc..
In a kind of preparation process of above-mentioned aluminium door sill panel, the film with a thickness of 0.15-0.2mm, the film Resolution accuracy is ten thousand dpi of 1-5, and the precision of printing is 0.001-0.03mm.The printing precision of the film of the present invention is high, in volume production Active gage is copied out as master slice, while precision passes to active gage;Meanwhile the thickness selection of the film is suitable for high resolution.Cause This, film long service life of the invention, producing cost is low.
In a kind of preparation process of above-mentioned aluminium door sill panel, the optical power of the exposure is 100-200mJ/cm2, light According to the uniformity >=80%.The control of conditions of exposure is an important factor for influencing exposal image-forming quality, when under-exposure, due to list Body polymerization is not thorough, and in developing process, glue film swelling softens, and lines are unintelligible, color dimness or even degumming, etched Film warps in journey, plating, or even falls off;When over-exposed, it will cause and be difficult to develop, glue film embrittlement, the defects of leaving residue glue, Exposure will generate the deviation of image or word line width, and excessive exposure can make figure or word lines attenuate, make the lines of product It is thicker.
In a kind of preparation process of above-mentioned aluminium door sill panel, the developer solution that the development removal ink uses is Na2CO3 Solution, Na2CO3The concentration of solution is 0.5%-1.5%, and temperature is 25-35 DEG C, pressure 1.5-2Kgf/cm2.Pass through developer solution handle The ink for not having light solid dissolves removal, needs the figure etched or text to pass through exposure and be transferred on blank in this way.
In a kind of preparation process of above-mentioned aluminium door sill panel, the mesh number for the wire drawing band that the mechanical etching wire drawing uses For 300-350 mesh, the pressure of wire drawing is 1-2Kgf, speed 0.5-3m/min.Mechanical etching wire drawing process through the invention, It forms that thickness is appropriate, lines clearly silking on blank, promotes the organoleptic quality of final product.
In a kind of preparation process of above-mentioned aluminium door sill panel, the stamping forming pressure is 6-25T.Pass through punching press Moulding process forms required pattern or text punch forming, makes pattern or text on the whole and depth or short transverse Mellow and full transition, i.e. band technique " R ", and it is high without transition defect, precision.
Preferably, going back communications centre location hole before the blank pretreatment.It can guarantee in blank pretreatment preshoot location hole Etching work procedure is consistent with the positioning pin precision of punch forming process, the artistic effect after guaranteeing punching press.
Preferably, to be also surface-treated after the punch forming, the surface treatment includes oxidation and coating.
Compared with prior art, the present invention is combined using etch process with punch forming process, is first passed through and is etched in base Required figure or text are formed on part, and then required pattern or text are formed by punching press, make pattern after molding Or text is on the whole and depth or the mellow and full transition of short transverse, i.e. band technique " R ", and high without transition defect, precision.
Specific embodiment
The following is specific embodiments of the present invention, and technical scheme of the present invention will be further described, but the present invention is simultaneously It is not limited to these embodiments.
Embodiment 1:
Commercially available 1050 aluminium alloy is chosen as blank, location hole is rushed in blanking, then carries out cleaning and wet coating, the ink of wet coating With a thickness of 0.04mm, certain time is stood after wet coating, heat preservation 15min carries out prebake at being then 90 DEG C in temperature.
It chooses with a thickness of 0.18mm, resolution accuracy is that the film of 20,000 dpi is printed, and the required precision of printing is 0.01mm, figure required for printing is formed on the film or text.
The film after printing is fixed on pretreated blank, is 100mJ/cm in optical power2, uniform illumination degree is It is exposed under conditions of 95%, then passes through developing machine, be 1% by concentration, temperature is 30 DEG C, pressure 1.5Kgf/cm2's Na2CO3Developer solution dissolves removal not by photosensitive ink, so that the figure etched or text will be needed to be transferred on blank.Blank It after cleaned drying, uses mesh number for the wire drawing band of 300 mesh, is 1.5Kgf in pressure, speed carries out under conditions of being 1m/min Machinery etching wire drawing.Removal ink is carried out after wire drawing, is changed and the processing such as is thrown, cleans drying, overlay film.
Then above-mentioned blank is positioned by location hole, using the pressure of 6T by required pattern or text punch forming, Then dyestripping, and through peroxidating, coating, punching press fall waste material, final aluminium door sill panel is made in pad pasting.
Through examining, the pattern or text of product aluminium door sill panel on the whole and depth or the mellow and full transition of short transverse, band work Skill " R ", and it is high without transition defect, precision.The lateral average value of the silking formed on product is Ra0.22 μm, longitudinal average value is Ra0.13 μm, combination string diameter be 5-20 μm.
Embodiment 2:
1050 aluminium alloys are chosen as blank, the constituent and its mass percent of 1050 aluminium alloys are as follows: Si: 0.088%, Cu:0.002%, Mg:0.002%, Zn:0.008%, Mn:0.002%, Ti:0.01%, V:0.011%, Fe: 0.32%, surplus is Al and inevitable impurity element.Location hole is rushed in blank blanking, then carries out cleaning and wet coating, wet The ink thickness of painting is 0.03mm, stands certain time after wet coating, and heat preservation 20min carries out preliminary drying at being then 85 DEG C in temperature It is dry.
It chooses with a thickness of 0.15mm, resolution accuracy is that the film of 10,000 dpi is printed, and the required precision of printing is 0.001mm, figure required for printing is formed on the film or text.
The film after printing is fixed on pretreated blank, is 100mJ/cm in optical power2, uniform illumination degree is It is exposed under conditions of 85%, then passes through developing machine, be 0.5%% by concentration, temperature is 25 DEG C, pressure 1.5Kgf/ cm2Na2CO3Developer solution dissolves removal not by photosensitive ink, so that the figure etched or text will be needed to be transferred to blank On.It after the cleaned drying of blank, uses mesh number for the wire drawing band of 310 mesh, is 1Kgf in pressure, speed is the condition of 0.5m/min The mechanical etching wire drawing of lower progress.Removal ink is carried out after wire drawing, is changed and the processing such as is thrown, cleans drying, overlay film.
Then above-mentioned blank is positioned by location hole, using the pressure of 8T by required pattern or text punch forming, Then dyestripping, and through peroxidating, coating, punching press fall waste material, final aluminium door sill panel is made in pad pasting.
Through examining, the pattern or text of product aluminium door sill panel on the whole and depth or the mellow and full transition of short transverse, band work Skill " R ", and it is high without transition defect, precision.The lateral average value of the silking formed on product is Ra0.23 μm, longitudinal average value is Ra0.14 μm, combination string diameter be 5-20 μm.
Embodiment 3:
1050 aluminium alloys are chosen as blank, the constituent and its mass percent of 1050 aluminium alloys are as follows: Si: 0.088%, Cu:0.002%, Mg:0.002%, Zn:0.008%, Mn:0.002%, Ti:0.01%, V:0.011%, Fe: 0.32%, surplus is Al and inevitable impurity element.Location hole is rushed in blanking, then carries out cleaning and wet coating, wet coating Ink thickness is 0.04mm, and certain time is stood after wet coating, and heat preservation 15min carries out prebake at being then 90 DEG C in temperature.
It chooses with a thickness of 0.18mm, resolution accuracy is that the film of 20,000 dpi is printed, and the required precision of printing is 0.01mm, figure required for printing is formed on the film or text.
The film after printing is fixed on pretreated blank, is 150mJ/cm in optical power2, uniform illumination degree is It is exposed under conditions of 90%, then passes through developing machine, be 1% by concentration, temperature is 30 DEG C, pressure 1.8Kgf/cm2's Na2CO3Developer solution dissolves removal not by photosensitive ink, so that the figure etched or text will be needed to be transferred on blank.Blank It after cleaned drying, uses mesh number for the wire drawing band of 320 mesh, is 1.5Kgf in pressure, speed carries out under conditions of being 1m/min Machinery etching wire drawing.Removal ink is carried out after wire drawing, is changed and the processing such as is thrown, cleans drying, overlay film.
Then above-mentioned blank is positioned by location hole, using the pressure of 6T by required pattern or text punch forming, Then dyestripping, and through peroxidating, coating, punching press fall waste material, final aluminium door sill panel is made in pad pasting.
Through examining, the pattern or text of product aluminium door sill panel on the whole and depth or the mellow and full transition of short transverse, band work Skill " R ", and it is high without transition defect, precision.The lateral average value of the silking formed on product is Ra0.24 μm, longitudinal average value is Ra0.15 μm, combination string diameter be 5-20 μm.
Embodiment 4:
Commercially available 1050 aluminium alloy is chosen as blank, location hole is rushed in blanking, then carries out cleaning and wet coating, the ink of wet coating With a thickness of 0.04mm, certain time is stood after wet coating, heat preservation 18min carries out prebake at being then 92 DEG C in temperature.
It chooses with a thickness of 0.16mm, resolution accuracy is that the film of 30,000 dpi is printed, and the required precision of printing is 0.005mm, figure required for printing is formed on the film or text.
The film after printing is fixed on pretreated blank, is 160mJ/cm in optical power2, uniform illumination degree is It is exposed under conditions of 88%, then passes through developing machine, be 1.2% by concentration, temperature is 32 DEG C, pressure 1.8Kgf/cm2 Na2CO3Developer solution dissolves removal not by photosensitive ink, so that the figure etched or text will be needed to be transferred on blank.Base It after expecting cleaned drying, uses mesh number for the wire drawing band of 330 mesh, is 1.8Kgf in pressure, under conditions of speed is 0.2m/min Carry out mechanical etching wire drawing.Removal ink is carried out after wire drawing, is changed and the processing such as is thrown, cleans drying, overlay film.
Then above-mentioned blank is positioned by location hole, using the pressure of 10T by required pattern or text punch forming, Then dyestripping, and through peroxidating, coating, punching press fall waste material, final aluminium door sill panel is made in pad pasting.
Through examining, the pattern or text of product aluminium door sill panel on the whole and depth or the mellow and full transition of short transverse, band work Skill " R ", and it is high without transition defect, precision.The lateral average value of the silking formed on product is Ra0.22 μm, longitudinal average value is Ra0.16 μm, combination string diameter be 5-20 μm.
Embodiment 5:
Commercially available 1100 aluminium alloy is chosen as blank, location hole is rushed in blanking, then carries out cleaning and wet coating, the ink of wet coating With a thickness of 0.05mm, certain time is stood after wet coating, heat preservation 10min carries out prebake at being then 95 DEG C in temperature.
It chooses with a thickness of 0.2mm, resolution accuracy is that the film of 50,000 dpi is printed, and the required precision of printing is 0.03mm, figure required for printing is formed on the film or text.
The film after printing is fixed on pretreated blank, is 200mJ/cm in optical power2, uniform illumination degree is It is exposed under conditions of 80%, then passes through developing machine, be 1.5% by concentration, temperature is 35 DEG C, pressure 2Kgf/cm2's Na2CO3Developer solution dissolves removal not by photosensitive ink, so that the figure etched or text will be needed to be transferred on blank.Blank It after cleaned drying, uses mesh number for the wire drawing band of 350 mesh, is 2Kgf in pressure, speed carries out machine under conditions of being 3m/min Tool etches wire drawing.Removal ink is carried out after wire drawing, is changed and the processing such as is thrown, cleans drying, overlay film.
Then above-mentioned blank is positioned by location hole, using the pressure of 25T by required pattern or text punch forming, Then dyestripping, and through peroxidating, coating, punching press fall waste material, final aluminium door sill panel is made in pad pasting.
Through examining, the pattern or text of product aluminium door sill panel on the whole and depth or the mellow and full transition of short transverse, band work Skill " R ", and it is high without transition defect, precision.The lateral average value of the silking formed on product is Ra0.20 μm, longitudinal average value is Ra0.11 μm, combination string diameter be 5-20 μm.
Comparative example 1:
Comparative example 1 and the difference of embodiment 3 are only that comparative example 1 uses five line aluminium alloys, and specially commercially available 5A05 aluminium closes Gold.By contrast, the aluminium door sill panel color of comparative example 1 be not so good as embodiment 3, occur yellow with it is faint yellow, it is undesirable.
Comparative example 2:
Comparative example 2 and the difference of embodiment 3 are only that the blank of comparative example 2 does not rush location hole, lead to comparative example 2 The pattern of aluminium door sill panel or the punching press profile of text have ghost image.
Comparative example 3:
Comparative example 2 and the difference of embodiment 3 are only that the blank of comparative example 3 is not cleaned, and lead to comparative example 3 There is show-through and bright spot defect in product.
Comparative example 4:
Comparative example 4 and the difference of embodiment 3 are only that the optical power of the exposure of comparative example 4 is 95mJ/cm2, uniform illumination Degree is 90%.
Comparative example 5:
Comparative example 5 and the difference of embodiment 3 are only that the optical power of the exposure of comparative example 5 is 150mJ/cm2, illumination is equal Evenness is 75%.
Comparative example 4 and comparative example 5 are all under-exposed, and the lines of pattern or text after development on blank are unintelligible, color Dimness, and there are also part degumming, is also easy to warp in etching process, plating and falls off, and can not carry out preferable punch forming, The pattern or text of product aluminium door sill panel on the whole and depth or short transverse there are apparent transition defects.Moreover, exposure The light sensitivity performance that deficiency will lead to ink does not come out, then will not in removal ink by the securing ink of photosensitivity It is removed, can not play a protective role, surface is destroyed during drawing process.Therefore, job efficiency is lower, is not suitable for producing Industry.
Comparative example 6:
Comparative example 4 and the difference of embodiment 3 are only that the optical power of the exposure of comparative example 6 is 210mJ/cm2, illumination is equal Evenness is 90%.
Comparative example 7:
Comparative example 7 and the difference of embodiment 3 are only that the optical power of the exposure of comparative example 7 is 210mJ/cm2, illumination is equal Evenness is 75%.
Comparative example 6 and comparative example 7 are all over-exposed, cause to be difficult to develop, and glue film embrittlement leaves the disadvantages such as residue glue.Exposure The deviation of image line width will be generated, excessive exposure can make pattern line attenuate, keep the lines of product thicker.
Comparative example 8-9:
Comparative example 8-9 and the difference of embodiment 3 are only that the machinery of comparative example 8-9 etches the wire drawing band that wire drawing uses Mesh number is respectively 280 mesh, 380 mesh.
Comparative example 10-11:
Comparative example 10-11 and the difference of embodiment 3 are only that the pressure of the mechanical etching wire drawing of comparative example 10-11 is distinguished For 0.8Kgf and 2.5Kgf.
Comparative example 12-13:
Comparative example 12-13 and the difference of embodiment 3 are only that the speed of the mechanical etching wire drawing of comparative example 12-13 is distinguished For 0.3m/min and 3.5m/min.
The silking of comparative example 8-13 aluminium door sill panel product and the lines of silk have the defects that certain, and sensory effects are poor, Market demands are not met.
Comparative example 14-15:
Comparative example 14-15 and the difference of embodiment 3 are only that the stamping forming pressure of comparative example 14-15 is respectively 5T And 30T.Lead to stamping forming pattern or text existing defects, it is undesirable.
In view of the numerous embodiments of the scheme of the present invention, each embodiment experimental data is huge numerous, is not suitable for arranging one by one herein Explanation is lifted, but the content verified required for each embodiment and obtained final conclusion are close, obtained product aluminium door sill decorations The pattern or text of item on the whole and depth or the mellow and full transition of short transverse, band technique " R ", and high without transition defect, precision.Therefore And the verifying content of each embodiment is not explained one by one herein, only illustrate Shen of the present invention using embodiment 1-5 as representative It please excellent place.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can do various modifications or supplement or is substituted in a similar manner to described specific embodiment, but simultaneously Spirit or beyond the scope defined by the appended claims of the invention is not deviated by.
It is skilled to this field although present invention has been described in detail and some specific embodiments have been cited For technical staff, as long as it is obvious for can making various changes or correct without departing from the spirit and scope of the present invention.

Claims (5)

1. a kind of preparation process of aluminium door sill panel, which is characterized in that the preparation process the following steps are included:
S1, blank pretreatment and the printing film;The blank pretreatment includes cleaning, wet coating and the prebake of blank: described wet The material of painting be ink, the ink that wet coating obtains with a thickness of 0.03-0.05mm;The film with a thickness of 0.15-0.2mm, The resolution accuracy of the film is ten thousand dpi of 1-5, and the precision of printing is 0.001-0.03mm;
S2, the film after printing is fixed on pretreated blank, is exposed and the removal ink that develops;The light of the exposure Power is 100-200mJ/cm2, uniform illumination degree >=80%;
S3, the blank after the removal ink that develops is subjected to mechanical etching wire drawing and removal ink;The drawing that the mechanical etching wire drawing uses The mesh number of silk ribbon is 300-350 mesh, and the pressure of wire drawing is 1-2Kgf, speed 0.5-3m/min;
S4, aluminium door sill panel is made by punch forming in the blank after mechanical etching wire drawing and removal ink.
2. a kind of preparation process of aluminium door sill panel according to claim 1, which is characterized in that it is aluminium that the blank, which is one, Alloy.
3. a kind of preparation process of aluminium door sill panel according to claim 1, which is characterized in that the temperature of the prebake It is 85-95 DEG C, soaking time 10-20min.
4. a kind of preparation process of aluminium door sill panel according to claim 1, which is characterized in that the development removal ink is adopted Developer solution is Na2CO3Solution, Na2CO3The concentration of solution is 0.5%-1.5%, and temperature is 25-35 DEG C, pressure 1.5- 2Kgf/cm2
5. a kind of preparation process of aluminium door sill panel according to claim 1, which is characterized in that the stamping forming pressure Power is 6-25T.
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