CN104593852B - A kind of wood grain cathode electrophoretic coating technique of aluminium section bar - Google Patents
A kind of wood grain cathode electrophoretic coating technique of aluminium section bar Download PDFInfo
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- CN104593852B CN104593852B CN201510014734.XA CN201510014734A CN104593852B CN 104593852 B CN104593852 B CN 104593852B CN 201510014734 A CN201510014734 A CN 201510014734A CN 104593852 B CN104593852 B CN 104593852B
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Abstract
The present invention discloses the wood grain cathode electrophoretic coating technique of a kind of aluminium section bar; after the spraying of aluminium section bar wood grain; wood grain material (finished product after the spraying of aluminium section bar wood grain) is again with electrostatic painting process, at wood grain material surface spraying electrophoretic paint, after solidification; wood grain coating surface covers the electrodeposited paint film of layer of transparent; protection wood grain coating, neither affects wood grain effect, can reach again to improve the purpose of coating performance; and through many experiments, form a set of stable wood grain cathode electrophoretic coating technique.Compared with prior art, the wood grain cathode electrophoretic coating technique of the aluminium section bar of the present invention, effective protecting film can be formed at wood grain coating surface, various coating performances are all improved, and meet the demand in client and market.
Description
Technical field
The present invention relates to aluminium section bar manufacture field, be exactly the wood grain cathode electrophoretic coating technique of a kind of aluminium section bar.
Background technology
At present, under the market environment of keen competition day by day, aluminium section bar enterprise wants to stand firm in the industry foot, it is achieved profit
Maximization, properties of product must be improved constantly, meet customer need, improve the market competitiveness, the performance of enterprises could be improved.
Aluminium section bar wood grain sprays, and coating surface has wood grain lines attractive in appearance, deeply liked by numerous clients, but owing to wood grain is sprayed
Being coated with and use electrostatic powder coating, it is mainly composed of polyester, determines that its coating performance is compared fluorocarbon-sprayed far short of what is expected, it is impossible to meet
Customer demand.
After the spraying of aluminium section bar wood grain, wood grain coating is mainly composed of polyester, and coating is non-conductive, if technique carries out oxygen routinely
Change anodic electrophoresis, then coating surface cannot go up film, i.e. cannot form effective protecting film at wood grain coating surface, coating performance,
Refer mainly to weatherability, wearability etc. cannot meet customer need.
Summary of the invention
For drawbacks described above, present invention solves the technical problem that the wood grain cathode electrophoretic coating work being to provide a kind of aluminium section bar
Skill, can form effective protecting film at wood grain coating surface, and various coating performances are all improved, and meet the need in client and market
Ask.
In order to solve above technical problem, the wood grain cathode electrophoretic coating technique of the aluminium section bar of the present invention, it is characterised in that bag
Include following steps:
(1), added step:
1.1, according to the requirement produced, the blank that mutually homochromy number requires once is hoisted to added place, according to kind, length
Degree, direction carry out sub-material and check, surface be not allow for bubble, burr, granule, scratch, touch recessed, bending, elbow, wool top position and
Screw sky blocking bad phenomenon；
1.2, band glove during carrying blank, and to handle with care；
When 1.3, adhering to packing material or greasy dirt on blank, clean out；
1.4, suitable hanger is selected according to different product, it is ensured that hanger covers without coating with the contact point of product；
1.5, punching position is away from termination 5-12mm；
1.6, added gap: decorative cover, to rifle, reserves added mode；According to the size of section bar, select the hanger being suitable for；Hang
The distance of hook is D ＞ A+B, D for hook distance, and A, B are the length and width of section bar；Material spacing span of control: little face width degree≤50mm
Material, material spacing is more than 40mm；The material of little face width degree ＞ 50mm, material spacing is equal to 1.5-2 times of the width of section bar side；
1.7, colour changing distance, uses wood grain powder, distance 15-22 rice；
(2), pre-defatting step:
2.1 flutings: add water to 3/4 groove position in Degreasing Area Stage 1, add acid deoiling agent, stir, add water
Assigned position, stirs, to be produced；
2.2 tank liquor technological parameters
(3) water-washing step for the first time: washing process parameter
| Water consumption | Tap water | Temperature | Washing time | Method of adjustment |
| 2m3/h | Washing | Room temperature | 2-4 minute | Adjust discharge |
(4) water-washing step for the second time:
Washing process parameter
| Water consumption | Tap water | Temperature | Washing time | Method of adjustment |
| 2m3/h | Washing | Room temperature | 2-4 minute | Adjust discharge |
(5), acid pickling step:
5.1, fluting: add water to 3/4 groove position in descaling bath, adds acid deoiling agent, stirs, and add water rule
Location is put, and stirs, to be produced；
5.2, tank liquor technological parameter
(6), water-washing step for the third time:
Washing process parameter
| Water consumption | Tap water | Temperature | Washing time | Method of adjustment |
| 2m3/h | Washing | Room temperature | 2-4 minute | Adjust discharge |
(7), the 4th water-washing step:
Washing process parameter
| Water consumption | Tap water | Temperature | Washing time | Method of adjustment |
| 2m3/h | Washing | Room temperature | 2-4 minute | Adjust discharge |
(8), chromaking step:
8.1 flutings: add water to 3/4 groove position in chromaking groove, add passivator, stir, and add water predetermined bits
Put, stir, to be produced；
8.2 technological parameter
(9), the 5th water-washing step:
Washing process parameter
| Water consumption | Tap water | Temperature | Washing time | Method of adjustment |
| 1m3/h | Washing | Room temperature | 2-4 minute | Adjust discharge |
(10), the 6th water-washing step:
Washing process parameter
| Water consumption | Tap water | Temperature | Washing time | Method of adjustment |
| 1m3/h | Washing | Room temperature | 2-4 minute | Adjust discharge |
(11), baking step:
11.1, moisture is dried: be dried to water completely dry, and Control for Kiln Temperature is between 110 ± 10 DEG C, and the time presses technological requirement with just
It is as the criterion usually through the long drying oven of 35m；
11.2, the quality control clearance of chromate conversion coating: 0.4-1.0g/m2；
(12), powder step at the bottom of spray wood grain:
12.1, powder voltage at the bottom of spray wood grain is between 50-60kv, and air pressure is 6-7bar, and rifle speed is 60-80HZ；
12.2, chain speed: adjust chain speed according to status of equipment and the added density of section bar overall dimensions；
(13), pre-cure step:
13.1, Control for Kiln Temperature is at 120 ± 10 DEG C, the time by technological requirement to be as the criterion normal through 40m long precuring stove；
(14), spray wood grain flour step:
14.1, powder voltage at the bottom of spray wood grain is between 50-60kv, and air pressure is 6-7bar, and rifle speed is 60-80HZ；
(15), hairbrush step:
15.1, according to the length adjustment hairbrush height of material；
(16), rolling wood grain step:
16.1, according to the length adjustment roller height of material；
(17), curing schedule:
17.1, before entering curing oven, clamping section bar with clip interval, causing defective products in order to avoid colliding with each other；
17.2, solidification temperature 180-190 DEG C and time are by technological requirement to be as the criterion normal through the long curing oven of 75m, solidify
Temperature should adjust according to chain speed speed, bridging density and section bar wall thickness in good time；
(18), undercarriage step:
18.1, careful during undercarriage, handle with care；
18.2, check at any time during undercarriage finished product with or without touch spend, damage, bottom drain phenomenon；
18.3, when undercarriage frames up, chase length have to be larger than or equal to product length；
(19), the most added step:
19.1, first check blank quality time added, it is ensured that without pull hook, stricture of vagina is thick, play bone, waviness, steam bubble, touch recessed, press, touch
Wound, face injustice phenomenon, size with supporting qualified after can be added；
19.2, according to the complexity of section bar, added mode is reserved；Distance between material: the material of little face width degree≤50mm, material with
Distance between material is more than 20mm；The material of little face width degree ＞ 50mm, the distance between material is equal to the width of section bar side；
19.3, by thickness material, thin material time added；Long material, short material are the most added, and from a distance, in order to adjust furnace temperature；
19.4, primary decoration face is just to rifle, and the paint of same system changes color distance and separates 5 minutes；
19.5, added interval；
19.6, when colour changing distance one coating and fluorine carbon material turn mutually, blank has gone out pretreatment water tank and has started added；One coating or
When fluorine carbon material turns electrophoresis material, owing to pre-treatment need to change water, blank has entered drying oven and has started added；When the nearly color of fluorous carbon phase turns mutually,
Blank has entered pretreatment water tank and has started added；
(20), pure water-washing step:
Pure water washes technological parameter
(21), baking step again:
21.1, temperature and time is dried: being completely dried as standard with water, temperature controls at 30～45 DEG C；
21.2, after thin, light tiny material goes out drying oven, bottom clamped by adjacent 2 material clips, in case spraying paint and entering solidification
Roll during stove, touch colored paint film；
(22), spray electrophoretic paint step:
Using the compressed air after dried when 22.1, spraying paint, air pressure is 100Psi；
22.2, the control of chain speed: during spray electrophoretic paint, chain speed controls 3.5～4m/min；
22.3, the control of voltage: the material of width≤50mm controls 55～65kv；The material 65～75kv of width G T.GT.GT 50mm；
22.4, size and thickness according to section bar decoration area require to adjust and reasonably paint discharge-amount, wood grain electrophoretic paint
Wet film >=4.0mil；
22.5 electrophoretic paint viscosity control: viscosity is 16-17S；
(23), resolidification step:
23.1, solidification temperature 180-200 DEG C and time are by technological requirement to be as the criterion normal through the long curing oven of 75m, solidify
Temperature should adjust according to chain speed speed, bridging density and section bar wall thickness in good time；
(24), last undercarriage step:
24.1, careful during blanking, handle with care.
Preferably, powder step at the bottom of (12), spray wood grain: 12.1, powder voltage at the bottom of spray wood grain is between 50-60kv, and air pressure is 6-
7bar, rifle speed is 60-80HZ；Corresponding electric current is adjusted at 10-20uA according to different powder；
Preferably, powder step at the bottom of (12), spray wood grain: 12.2, chain speed: added close according to status of equipment and section bar overall dimensions
Degree adjusts chain speed, and wood grain powder span of control is 1.2-1.7m/min；
Preferably, (14), spray wood grain flour step: 14.1, powder voltage at the bottom of spray wood grain is between 50-60kv, and air pressure is 6-
7bar, rifle speed is 60-80HZ；Corresponding electric current is adjusted at 10-20uA according to different powder.
Preferably, (15), hairbrush step: 15.1, according to the length adjustment hairbrush height of material, upper limit 180-200mm, lower limit
7200-7400mm, hairbrush speed is 60-80HZ.
Preferably, (16), rolling wood grain step: 16.1, according to the length adjustment roller height of material, upper limit 170-190mm, under
Limit 7200-7400mm, wheel speeds is 60-80HZ.
Preferably, (17), curing schedule: do over again material return more a little higher than than the furnace temperature of this color number 5 DEG C of roasting temperature.
Preferably, (19), the most added step: 19.5, added interval, length difference material within 1.5 meters, time added not
Must separate；Length difference material of less than 3 meters more than 1.5 meters, and blank substance is when below 0.5kg/m, must not be every time added
Open.
Preferably, (22), spray electrophoretic paint step: 22.4, size and thickness according to section bar decoration area require to adjust and close
The paint discharge-amount of reason, wood grain electrophoretic paint wet film >=4.0mil.
Preferably, (23), resolidification step: 23.1, do over again material return more a little higher than than the furnace temperature of this color number 5 DEG C of roasting temperature
Left and right.
The wood grain cathode electrophoretic coating technique of the aluminium section bar that the present invention provides, before improvement, after spraying due to wood grain, wood grain coating table
Face is non-conductive, if technique carries out oxidizing anode electrophoresis routinely, then coating surface cannot go up film, and coating performance cannot meet client
Demand.After improvement, by repeatedly inquiring into and testing, after the spraying of aluminium section bar wood grain, by the wood grain material (one-tenth after the spraying of aluminium section bar wood grain
Product) it is again with electrostatic painting process, at wood grain material surface spraying electrophoretic paint, after solidification, wood grain coating surface covers one layer thoroughly
Bright electrodeposited paint film, protects wood grain coating, neither affects wood grain effect, can reach again to improve the purpose of coating performance, and warp
Cross many experiments, form a set of stable wood grain cathode electrophoretic coating technique.Compared with prior art, the wood grain of the aluminium section bar of the present invention
Cathode electrophoretic coating technique, can form effective protecting film at wood grain coating surface, and various coating performances are all improved, and meet client
Demand with market.
Detailed description of the invention
In order to those skilled in the art better understood when technical scheme provided by the present invention, below in conjunction with specifically
Embodiment is illustrated.
This case can be illustrated by below example and be fully understood so that the personage being familiar with this skill can be according to this
Complete it, the embodiment of right this case not can by following and limited its implement kenel.
The wood grain cathode electrophoretic coating technique of the aluminium section bar that the embodiment of the present invention provides, wood grain cathode electrophoretic coating technique, its feature exists
In, comprise the steps:
(1), added step:
1.1, according to the requirement produced, the blank that mutually homochromy number requires once is hoisted to added place, according to kind, length
Degree, direction carry out sub-material and check, surface be not allow for bubble, burr, granule, scratch, touch recessed, bending, elbow, wool top position and
Screw sky blocking bad phenomenon；
1.2, band glove during carrying blank, and to handle with care；
When 1.3, adhering to packing material or greasy dirt on blank, clean out；
1.4, suitable hanger is selected according to different product, it is ensured that hanger covers without coating with the contact point of product；
1.5, punching position is away from termination 5-12mm；
1.6, added gap: decorative cover, to rifle, reserves added mode；According to the size of section bar, select the hanger being suitable for；Hang
The distance of hook is D ＞ A+B, D for hook distance, and A, B are the length and width of section bar；Material spacing span of control: little face width degree≤50mm
Material, material spacing is more than 40mm；The material of little face width degree ＞ 50mm, material spacing is equal to 1.5-2 times of the width of section bar side；
1.7, colour changing distance, uses wood grain powder, distance 15-22 rice；
(2), pre-defatting step:
2.1 flutings: add water to 3/4 groove position in Degreasing Area Stage 1, add acid deoiling agent, stir, add water
Assigned position, stirs, to be produced；
2.2 tank liquor technological parameters
(3) water-washing step for the first time:
Washing process parameter
| Water consumption | Tap water | Temperature | Washing time | Method of adjustment |
| 2m3/h | Washing | Room temperature | 2-4 minute | Adjust discharge |
(4) water-washing step for the second time:
Washing process parameter
| Water consumption | Tap water | Temperature | Washing time | Method of adjustment |
| 2m3/h | Washing | Room temperature | 2-4 minute | Adjust discharge |
(5), acid pickling step:
5.1, fluting: add water to 3/4 groove position in descaling bath, adds acid deoiling agent, stirs, and add water rule
Location is put, and stirs, to be produced；
5.2, tank liquor technological parameter
(6), water-washing step for the third time:
Washing process parameter
| Water consumption | Tap water | Temperature | Washing time | Method of adjustment |
| 2m3/h | Washing | Room temperature | 2-4 minute | Adjust discharge |
(7), the 4th water-washing step:
Washing process parameter
| Water consumption | Tap water | Temperature | Washing time | Method of adjustment |
| 2m3/h | Washing | Room temperature | 2-4 minute | Adjust discharge |
(8), chromaking step:
8.1 flutings: add water to 3/4 groove position in chromaking groove, add passivator, stir, and add water predetermined bits
Put, stir, to be produced；
8.2 technological parameter
(9), the 5th water-washing step:
Washing process parameter
| Water consumption | Tap water | Temperature | Washing time | Method of adjustment |
| 1m3/h | Washing | Room temperature | 2-4 minute | Adjust discharge |
(10), the 6th water-washing step:
Washing process parameter
| Water consumption | Tap water | Temperature | Washing time | Method of adjustment |
| 1m3/h | Washing | Room temperature | 2-4 minute | Adjust discharge |
(11), baking step:
11.1, moisture is dried: be dried to water completely dry, and Control for Kiln Temperature is between 110 ± 10 DEG C, and the time presses technological requirement with just
It is as the criterion usually through the long drying oven of 35m；
11.2, the quality control clearance of chromate conversion coating: 0.4-1.0g/m2；
(12), powder step at the bottom of spray wood grain:
12.1, powder voltage at the bottom of spray wood grain is between 50-60kv, and air pressure is 6-7bar, and rifle speed is 60-80HZ；
12.2, chain speed: adjust chain speed according to status of equipment and the added density of section bar overall dimensions；
(13), pre-cure step:
13.1, Control for Kiln Temperature is at 120 ± 10 DEG C, the time by technological requirement to be as the criterion normal through 40m long precuring stove；
(14), spray wood grain flour step:
14.1, powder voltage at the bottom of spray wood grain is between 50-60kv, and air pressure is 6-7bar, and rifle speed is 60-80HZ；
(15), hairbrush step:
15.1, according to the length adjustment hairbrush height of material；
(16), rolling wood grain step:
16.1, according to the length adjustment roller height of material；
(17), curing schedule:
17.1, before entering curing oven, clamping section bar with clip interval, causing defective products in order to avoid colliding with each other；
17.2, solidification temperature 180-190 DEG C and time are by technological requirement to be as the criterion normal through the long curing oven of 75m, solidify
Temperature should adjust according to chain speed speed, bridging density and section bar wall thickness in good time；
(18), undercarriage step:
18.1, careful during undercarriage, handle with care；
18.2, check at any time during undercarriage finished product with or without touch spend, damage, bottom drain phenomenon；
18.3, when undercarriage frames up, chase length have to be larger than or equal to product length；
(19), the most added step:
19.1, first check blank quality time added, it is ensured that without pull hook, stricture of vagina is thick, play bone, waviness, steam bubble, touch recessed, press, touch
Wound, face injustice phenomenon, size with supporting qualified after can be added；
19.2, according to the complexity of section bar, added mode is reserved；Distance between material: the material of little face width degree≤50mm, material with
Distance between material is more than 20mm；The material of little face width degree ＞ 50mm, the distance between material is equal to the width of section bar side；
19.3, by thickness material, thin material time added；Long material, short material are the most added, and from a distance, in order to adjust furnace temperature；
19.4, primary decoration face is just to rifle, and the paint of same system changes color distance and separates 5 minutes；
19.5, added interval；
19.6, when colour changing distance one coating and fluorine carbon material turn mutually, blank has gone out pretreatment water tank and has started added；One coating or
When fluorine carbon material turns electrophoresis material, owing to pre-treatment need to change water, blank has entered drying oven and has started added；When the nearly color of fluorous carbon phase turns mutually,
Blank has entered pretreatment water tank and has started added；
(20), pure water-washing step:
Pure water washes technological parameter
(21), baking step again:
21.1, temperature and time is dried: being completely dried as standard with water, temperature controls at 30～45 DEG C；
21.2, after thin, light tiny material goes out drying oven, bottom clamped by adjacent 2 material clips, in case spraying paint and entering solidification
Roll during stove, touch colored paint film；
(22), spray electrophoretic paint step:
Using the compressed air after dried when 22.1, spraying paint, air pressure is 100Psi；
22.2, the control of chain speed: during spray electrophoretic paint, chain speed controls 3.5～4m/min；
22.3, the control of voltage: the material of width≤50mm controls 55～65kv；The material 65～75kv of width G T.GT.GT 50mm；
22.4, size and thickness according to section bar decoration area require to adjust and reasonably paint discharge-amount, wood grain electrophoretic paint
Wet film >=4.0mil；
22.5 electrophoretic paint viscosity control: viscosity is 16-17S；
(23), resolidification step:
23.1, solidification temperature 180-200 DEG C and time are by technological requirement to be as the criterion normal through the long curing oven of 75m, solidify
Temperature should adjust according to chain speed speed, bridging density and section bar wall thickness in good time；
(24), last undercarriage step:
24.1, careful during blanking, handle with care.
Preferably, powder step at the bottom of (12), spray wood grain: 12.1, powder voltage at the bottom of spray wood grain is between 50-60kv, and air pressure is 6-
7bar, rifle speed is 60-80HZ；Corresponding electric current is adjusted at 10-20uA according to different powder；
Preferably, powder step at the bottom of (12), spray wood grain: 12.2, chain speed: added close according to status of equipment and section bar overall dimensions
Degree adjusts chain speed, and wood grain powder span of control is 1.2-1.7m/min；
Preferably, (14), spray wood grain flour step: 14.1, powder voltage at the bottom of spray wood grain is between 50-60kv, and air pressure is 6-
7bar, rifle speed is 60-80HZ；Corresponding electric current is adjusted at 10-20uA according to different powder.
Preferably, (15), hairbrush step: 15.1, according to the length adjustment hairbrush height of material, upper limit 180-200mm, lower limit
7200-7400mm, hairbrush speed is 60-80HZ.
Preferably, (16), rolling wood grain step: 16.1, according to the length adjustment roller height of material, upper limit 170-190mm, under
Limit 7200-7400mm, wheel speeds is 60-80HZ.
Preferably, (17), curing schedule: do over again material return more a little higher than than the furnace temperature of this color number 5 DEG C of roasting temperature.
Preferably, (19), the most added step: 19.5, added interval, length difference material within 1.5 meters, time added not
Must separate；Length difference material of less than 3 meters more than 1.5 meters, and blank substance is when below 0.5kg/m, must not be every time added
Open.
Preferably, (22), spray electrophoretic paint step: 22.4, size and thickness according to section bar decoration area require to adjust and close
The paint discharge-amount of reason, wood grain electrophoretic paint wet film >=4.0mil.
Preferably, (23), resolidification step: 23.1, do over again material return more a little higher than than the furnace temperature of this color number 5 DEG C of roasting temperature
Left and right.
The wood grain cathode electrophoretic coating technique of the aluminium section bar that the present invention provides, before improvement, after spraying due to wood grain, wood grain coating table
Face is non-conductive, if technique carries out oxidizing anode electrophoresis routinely, then coating surface cannot go up film, and coating performance cannot meet client
Demand.After improvement, by repeatedly inquiring into and testing, after the spraying of aluminium section bar wood grain, by the wood grain material (one-tenth after the spraying of aluminium section bar wood grain
Product) it is again with electrostatic painting process, at wood grain material surface spraying electrophoretic paint, after solidification, wood grain coating surface covers one layer thoroughly
Bright electrodeposited paint film, protects wood grain coating, neither affects wood grain effect, can reach again to improve the purpose of coating performance, and warp
Cross many experiments, form a set of stable wood grain cathode electrophoretic coating technique.Compared with prior art, the wood grain of the aluminium section bar of the present invention
Cathode electrophoretic coating technique, can form effective protecting film at wood grain coating surface, and various coating performances are all improved, and meet client
Demand with market.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (9)
1. the wood grain cathode electrophoretic coating technique of an aluminium section bar, it is characterised in that comprise the steps:
(1), added step:
1.1, according to the requirement produced, the blank that mutually homochromy number requires once is hoisted to added place, according to kind, length, side
To carrying out sub-material and checking, surface is not allow for bubble, burr, granule, scratches, touches recessed, bending, elbow, wool top position and screw
Empty blocking bad phenomenon；
1.2, band glove during carrying blank, and to handle with care；
When 1.3, adhering to packing material or greasy dirt on blank, clean out；
1.4, suitable hanger is selected according to different product, it is ensured that hanger covers without coating with the contact point of product；
1.5, punching position is away from termination 5-12mm；
1.6, added gap: decorative cover, to rifle, reserves added mode；According to the size of section bar, select the hanger being suitable for；Hook
Distance is hook distance for D ＞ A+B, D, and A, B are the length and width of section bar；Material spacing span of control: little face width degree≤50mm's
Material, material spacing is more than 40mm；The material of little face width degree ＞ 50mm, material spacing is equal to 1.5-2 times of the width of section bar side；
1.7, colour changing distance, uses wood grain powder, distance 15-22 rice；
(2), pre-defatting step:
2.1 flutings: add water to 3/4 groove position in Degreasing Area Stage 1, add acid deoiling agent, stir, and add water regulation
Position, stirs, to be produced；
2.2 tank liquor technological parameters
(3) water-washing step for the first time:
Washing process parameter
(4) water-washing step for the second time:
Washing process parameter
(5), acid pickling step:
5.1, fluting: add water to 3/4 groove position in descaling bath, adds acid deoiling agent, stirs, and add water predetermined bits
Put, stir, to be produced；
5.2, tank liquor technological parameter
(6), water-washing step for the third time:
Washing process parameter
(7), the 4th water-washing step:
Washing process parameter
(8), chromaking step:
8.1 flutings: add water to 3/4 groove position in chromaking groove, add passivator, stir, and add water assigned position,
Stir, to be produced；
8.2 technological parameter
(9), the 5th water-washing step:
Washing process parameter
(10), the 6th water-washing step:
Washing process parameter
(11), baking step:
11.1, moisture is dried: be dried to water completely dry, and Control for Kiln Temperature is between 110 ± 10 DEG C, and the time presses technological requirement with positive normal open
Cross the long drying oven of 35m to be as the criterion；
11.2, the quality control clearance of chromate conversion coating: 0.4-1.0g/m2；
(12), powder step at the bottom of spray wood grain:
12.1, powder voltage at the bottom of spray wood grain is between 50-60kv, and air pressure is 6-7bar, and rifle speed is 60-80HZ；
12.2, chain speed: adjust chain speed according to status of equipment and the added density of section bar overall dimensions；
(13), pre-cure step:
13.1, Control for Kiln Temperature is at 120 ± 10 DEG C, the time by technological requirement to be as the criterion normal through 40m long precuring stove；
(14), spray wood grain flour step:
14.1, spray wood grain flour voltage is between 50-60kv, and air pressure is 6-7bar, and rifle speed is 60-80HZ；
(15), hairbrush step:
15.1, according to the length adjustment hairbrush height of material；
(16), rolling wood grain step:
16.1, according to the length adjustment roller height of material；
(17), curing schedule:
17.1, before entering curing oven, clamping section bar with clip interval, causing defective products in order to avoid colliding with each other；
17.2, solidification temperature 180-190 DEG C and time by technological requirement to be as the criterion normal through the long curing oven of 75m, solidification temperature
Should adjust according to chain speed speed, bridging density and section bar wall thickness in good time；
(18), undercarriage step:
18.1, careful during undercarriage, handle with care；
18.2, check at any time during undercarriage finished product with or without touch spend, damage, bottom drain phenomenon；
18.3, when undercarriage frames up, chase length have to be larger than or equal to product length；
(19), the most added step:
19.1, first check blank quality time added, it is ensured that without pull hook, stricture of vagina is thick, play bone, waviness, steam bubble, touch recessed, press, damage,
Face injustice phenomenon, size with supporting qualified after can be added；
19.2, according to the complexity of section bar, added mode is reserved；Distance between material: the material of little face width degree≤50mm, expects and material
Between distance more than 20mm；The material of little face width degree ＞ 50mm, the distance between material is equal to the width of section bar side；
19.3, by thickness material, thin material time added；Long material, short material are the most added, and from a distance, in order to adjust furnace temperature；
19.4, primary decoration face is just to rifle, and the paint of same system changes color distance and separates 5 minutes；
19.5, added interval；
19.6, when colour changing distance one coating and fluorine carbon material turn mutually, blank has gone out pretreatment water tank and has started added；One coating or fluorine carbon
When material turns electrophoresis material, owing to pre-treatment need to change water, blank has entered drying oven and has started added；When the nearly color of fluorous carbon phase turns mutually, blank
Enter pretreatment water tank and started added；
(20), pure water-washing step:
Pure water washes technological parameter
(21), baking step again:
21.1, temperature and time is dried: being completely dried as standard with water, temperature controls at 30～45 DEG C；
21.2, after thin, light tiny material goes out drying oven, bottom clamped by adjacent 2 material clips, during in case spraying paint and entering curing oven
Roll, touch colored paint film；
(22), spray electrophoretic paint step:
Using the compressed air after dried when 22.1, spraying paint, air pressure is 100Psi；
22.2, the control of chain speed: during spray electrophoretic paint, chain speed controls 3.5～4m/min；
22.3, the control of voltage: the material of width≤50mm controls 55～65kv；The material 65～75kv of width G T.GT.GT 50mm；
22.4, size and thickness according to section bar decoration area require to adjust and reasonably paint discharge-amount, wood grain electrophoretic paint wet film
≥4.0mil；
22.5 electrophoretic paint viscosity control: viscosity is 16-17S；
(23), resolidification step:
23.1, solidification temperature 180-200 DEG C and time by technological requirement to be as the criterion normal through the long curing oven of 75m, solidification temperature
Should adjust according to chain speed speed, bridging density and section bar wall thickness in good time；
(24), last undercarriage step:
24.1, careful during blanking, handle with care.
The wood grain cathode electrophoretic coating technique of aluminium section bar the most according to claim 1, it is characterised in that (12), spray powder at the bottom of wood grain
Step: 12.1, powder voltage at the bottom of spray wood grain is between 50-60kv, and air pressure is 6-7bar, and rifle speed is 60-80HZ；According to different powder
End adjusts corresponding electric current at 10-20uA.
The wood grain cathode electrophoretic coating technique of aluminium section bar the most according to claim 2, it is characterised in that (12), spray powder at the bottom of wood grain
Step: 12.2, chain speed: adjust chain speed according to status of equipment and the added density of section bar overall dimensions, wood grain powder span of control is
1.2-1.7m/min。
The wood grain cathode electrophoretic coating technique of aluminium section bar the most according to claim 1, it is characterised in that (14), spray wood grain flour
Step: 14.1, spray wood grain flour voltage is between 50-60kv, and air pressure is 6-7bar, and rifle speed is 60-80HZ；According to different powder
End adjusts corresponding electric current at 10-20uA.
(15), hairbrush step the wood grain cathode electrophoretic coating technique of aluminium section bar the most according to claim 1, it is characterised in that:
15.1, according to the length adjustment hairbrush height of material, upper limit 180-200mm, lower limit 7200-7400mm, hairbrush speed is 60-
80HZ。
The wood grain cathode electrophoretic coating technique of aluminium section bar the most according to claim 1, it is characterised in that (16), rolling wood grain step:
16.1, according to the length adjustment roller height of material, upper limit 170-190mm, lower limit 7200-7400mm, wheel speeds is 60-
80HZ。
(17), curing schedule the wood grain cathode electrophoretic coating technique of aluminium section bar the most according to claim 1, it is characterised in that: return
Labor and materials to return roasting temperature higher than the furnace temperature of this color number 5 DEG C.
(19), the most added step the wood grain cathode electrophoretic coating technique of aluminium section bar the most according to claim 1, it is characterised in that:
19.5, added interval, length difference material within 1.5 meters, must not separate time added；Length difference more than 1.5 meters 3 meters with
Under material, and blank substance is when below 0.5kg/m, must not separate time added.
(23), resolidification step the wood grain cathode electrophoretic coating technique of aluminium section bar the most according to claim 1, it is characterised in that:
23.1, do over again material to return roasting temperature higher than the furnace temperature of this color number 5 DEG C.
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| JPS5478336A (en) * | 1977-12-05 | 1979-06-22 | Yoshida Kogyo Kk | Method of forming colored pattern of aluminum or alloys thereof |
| JPH0813196A (en) * | 1994-06-27 | 1996-01-16 | Showa Alum Corp | Aluminum material having composite electrodeposition coating film and its production |
| CN101367078A (en) * | 2007-08-16 | 2009-02-18 | 王安 | Spray coating process for handfeel powder wood grain on aluminum products surface |
| CN101596519B (en) * | 2009-07-02 | 2012-01-04 | 许浩洪 | Process for spraying fluorocarbon wood grains on surface of sectional material |
| CN202378617U (en) * | 2012-01-09 | 2012-08-15 | 山东华建铝业有限公司 | Corrosion-resistant wood grain sprayed aluminum section |
| CN103522826A (en) * | 2013-10-21 | 2014-01-22 | 浙江富丽华铝业有限公司 | Technology for engraving tridimensional wood lines in surface of aluminum profile |
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