The present invention relates to metallic surface etching and processing technical field, relate in particular to stainless steel etching liquor engraving method.
Publication number is the patent of CN101173360, discloses a kind of stainless steel etching solution, comprises following component, iron trichloride 400-600g/L, hydrochloric acid 2-5g/L, ammonium bifluoride 1-2g/L, thiocarbamide 2.5-5g/L, etching promotor 1-5g/L, regenerator 2-5g/L.This etching solution how carries out etching to stainless steel fast, but lateral erosion is less, and etching face and stainless steel surface transition are more stiff, and nature lacks the nature aesthetic feeling inadequately, and can't realize the decorative effect of emulation texture in the metallic surface.
Decorate the field in the metallic surface, the metallochemistry etch process is generally used for making the figure with regular contour, such as logo or some vector diagram lines, need avoid the influence of lateral erosion, obtain edge clear, etching face is smooth, and the etch effect that the etching slope is less generally all possesses above characteristics at its chemical corrosion liquid of developing.Along with the development of surface decoration tech, increasing people likes making in the metallic surface natural texture of emulation, such as dermatoglyph, wood grain, Shamian Island texture, silks and satins line and embossment etc.Yet use traditional chemical etching liquor,, make that the natural figure line that displays is comparatively stiff, lack the nature aesthetic feeling, and can't realize the decorative effect of emulation texture in the metallic surface because etching face and substrate surface can not merge in natural transition.
The present invention adopts novel etch systems, improved the stainless steel surface chemically etching process, this etching solution is effectively controlled stainless steel chemistry etching process, strengthening the lateral erosion process carries out, make the edge smooth, the etched edge slope presents slick and sly shape, realizes the natural transition of etching face and the original substrate surface of stainless steel, thereby makes the natural texture of emulation present effect true to nature.
The present invention also provides a kind of stainless steel engraving method, and this method is stainless steel substrate to be contacted with etching solution carry out etching, and the temperature of control etching solution is 15-40 ℃, and described etching solution is an etching solution of the present invention.
The invention provides a kind of stainless steel etching solution, this etching solution comprises iron trichloride, hydrochloric acid, nitric acid and hexanolactam; The content of described iron trichloride is 200-350g/L, and the content of described hydrochloric acid is 0.45-1.16mol/L, and the content of described nitric acid is 20-60g/L, and the content of described hexanolactam is 40-100g/L.
The technical problem to be solved in the present invention is that the lateral erosion of existing stainless steel etching solution is less, etching face and stainless steel surface transition are more stiff, natural inadequately, lack the nature aesthetic feeling, and can't realize the defective of the decorative effect of emulation texture in the metallic surface, thus provide a kind of lateral erosion bigger, etching face and stainless steel surface transition nature, have the nature aesthetic feeling, can realize the stainless steel etching solution and the engraving method of the decorative effect of emulation texture in the metallic surface.
Embodiment
The invention provides a kind of stainless steel etching solution, this etching solution comprises iron trichloride, hydrochloric acid, nitric acid and hexanolactam; The content of described iron trichloride is 200-350g/L, be preferably 250-300g/L, the content of described hydrochloric acid is 0.45-1.16mol/L, be preferably 0.70-0.80mol/L, the content of described nitric acid is 20-60g/L, be preferably 35-45g/L, the content of hexanolactam is 40-100g/L, is preferably 60-80g/L.
Stainless steel etching solution of the present invention chemical reaction in carrying out chemically etching process is very complicated, and the main chemical reactions equation is as follows:
Fe+2FeCl 3＝3FeCl 2；
2Fe+6H +＝Fe 3++3H 2↑；
2Al+6H +=2Al 3++ 3H 2Individual;
4Fe 2++O 2+4H +＝4Fe 3++2H 2O；
Ni+2HNO 3＝Ni(NO3) 2+H 2↑；
Fe+3HCl+HNO 3＝FeCl 3+NO+2H 2O。
Hexanolactam is the main component of this etching solution, is used to control the etch state of etching solution in the metallic surface, regulates the degree of roughness of Corrosion of Stainless Steel face.The mechanism of its effect is for being in the etching solution of system at hydrochloric acid, hexanolactam can form adsorbent thin film at stainless steel surface, thinner according to membrane theory at stainless steel surface protrusion or sharp-pointed face film, corrosion speed is very fast herein, reach the purpose of effective flat surface, therefore along with the progressively leveling of sharp edges quilt that etched edge forms of carrying out of corrosion process, form slick and sly cambered surface.Simultaneously because the carrying out that formed pellicular front effectively stops etching process, reduced the speed of chemical corrosion, just can effectively increase the lateral erosion of stainless steel etched edge, thereby utilize this etching solution to be used for the natural texture corrosion and can obtain the etched edge slyness, lateral erosion is bigger, and etching face and substrate surface edge merge the simulated effect of nature.
According to stainless steel etching solution provided by the present invention, the wherein increase of iron trichloride content, can effectively raise etched speed, but the roughness of etching face increases, the degree of lateral erosion reduces to some extent, and too high iron trichloride concentration makes that the knuckle of etched edge slope and substrate surface is comparatively obvious.The increase of content of hydrochloric acid also can effectively raise corrosive speed, but the roughness of etching face increases, and the degree of lateral erosion reduces to some extent, and too high concentration of hydrochloric acid makes that the knuckle of etched edge slope and substrate surface is comparatively obvious.The increase of caprolactam content can effectively reduce the speed of chemical corrosion, and has reduced the roughness of etching face effectively, has increased the degree of lateral erosion, makes etched edge slope and substrate surface realize very significantly arc-shaped transition.
According to stainless steel etching solution provided by the present invention, inevitably there are some heavy metal elements in the stainless steel, the content that reduces heavy metal in the etching solution helps reducing the roughness of etched surfaces, so preferably, described etching solution comprises heavy metal precipitator, and described heavy metal precipitator is sodium sulphite and/or sodium polysulphide.The content of described precipitation agent is 2-6g/L, is preferably 4-5g/L.
According to stainless steel etching solution provided by the present invention, follow hydrionic loss in the etching process, faintly acid adds to be beneficial to regulates etching solution stability, increases the service life.Preferably, this etching solution comprises the pH regulator agent, and described pH regulator agent is at least a in phosphoric acid, boric acid, formic acid, acetate, propionic acid, butyric acid, alginic acid, isopropylformic acid, valeric acid, isovaleric acid, oxalic acid and the citric acid.Phosphoric acid more preferably, the adding of phosphoric acid not only is beneficial to the pH of regulator solution, can reduce the etched surfaces roughness simultaneously, improves surface luster.The content of described pH regulator agent is 20-50g/L, is preferably 30-40g/L.
According to stainless steel etching solution provided by the present invention, in corrosion process, be accompanied by the generation of harmful oxynitride sometimes, need be suppressed it, preferably, described etching solution comprises the oxynitride inhibitor, and described oxynitride inhibitor is at least a in urea, ammonium sulfate, ammonium nitrate and the glucose.The content of described oxynitride is 5-20g/L, is preferably 10-15g/L.
According to stainless steel etching solution provided by the present invention, be accompanied by the generation of gas in the process, because solution has certain viscosity, the bubble that generates influence the carrying out of etching process attached to the surface of workpiece, and to the homogeneity generation adverse influence of etched surfaces, so preferably, described etching solution comprises defoamer, use defoamer that solution is handled, reduce foamy and generate, described defoamer is at least a in OP-10, dimethyl siloxane, n-Octanol and the silicone glycols.The content of described defoamer is 0.5-1g/L, is preferably 0.7-0.8g/L.
The present invention also provides a kind of stainless steel engraving method, and this engraving method carries out etching for stainless steel substrate is contacted with etching solution, and the temperature of control etching solution is 15-40 ℃, and described etching solution is an etching solution of the present invention.
According to stainless steel engraving method provided by the present invention, the described method that stainless steel substrate is contacted with etching solution is stirred or with the method that low pressure sprays etching solution is sprayed uniformly on stainless surface for the method with dipping is placed on stainless steel substrate in the etching solution and to etching solution.Preferably, the pressure of described low pressure spray is 0.03-0.1Mpa.
With stainless steel etching solution of the present invention stainless steel is carried out etching, avoided that the stainless steel etched edge forms more sharply, knuckle clearly, make stainless steel etching posterior border slyness, realize the natural transition of etching face and original substrate surface texture.The stainless steel surface that the present invention obtains is made the simulation of natural texture, such as dermatoglyph, wood grain, Shamian Island texture, silks and satins line and embossment etc.
Below by embodiment the present invention is further described in detail.
Embodiment 1
1 liter of configuration stainless steel etching solution: wherein, iron trichloride 250 grams, 36% hydrochloric acid 50ml, hexanolactam are 60 grams, and nitric acid is 40 grams, and all the other are water.
Choose 1 of the 304 type stainless steel substrate handled through sandblasting.Adopt following technology to operate:
(1) to the dirty after drying surface-moisture of 304 type stainless steel substrate surface degreasings;
(2) uniformly spray one deck photosensitive-ink (model that the prosperous Hua Da in Shenzhen Science and Technology Ltd. produces is a HL-801B sensitization blue oil);
(3) adopt 80 ℃ surface ink dried 20 minutes;
(4) adopt power to carry out exposure-processed 4 seconds, and adopt 1% sodium carbonate solution to develop, after clear patterns, use the clear water clean surface for the 4KW exposure machine;
(5) after the surface dries up, adopt 120 ℃ printing ink is cured handled 30 minutes,
(6) use above-mentioned stainless steel etching solution that the stainless steel of handling was carried out etching 12 minutes, controlling etched temperature is 30 ℃, adopts the clear water clean surface;
(7) configuration concentration is 5% NaOH solution in being furnished with hyperacoustic trough, and temperature is 70-90 ℃, the stainless steel after the etching is immersed in strips surface ink in the solution
(8) the clean back of photosensitive-ink stripping is adopted clear water to clean and is carried out drying treatment.
Through obtaining etch depth after the treat surface is 0.095mm, edge clear, the smooth homogeneous of etching face, there are comparatively significantly lateral erosion and smooth cambered surface in the edge, reduce through pH value of solution after a large amount of etch processes, the etching face roughness increases, and the foam that generates in the corrosion process is difficult for eliminating attached to workpiece surface.
Embodiment 2
1 liter of configuration stainless steel etching solution: wherein, iron trichloride 300 grams, 36% hydrochloric acid 60ml, hexanolactam 70 grams, nitric acid 50 grams, sodium sulphite 4 grams, all the other are water.
Choose 1 of the 304 type stainless steel substrate handled through sandblasting.Adopt following technology to operate:
(1) to the dirty after drying surface-moisture of 304 type stainless steel substrate surface degreasings;
(2) uniformly spray one deck photosensitive-ink (model that the prosperous Hua Da in Shenzhen Science and Technology Ltd. produces is a HL-801B sensitization blue oil);
(3) adopt 80 ℃ surface ink dried 20 minutes;
(4) adopt power to carry out exposure-processed 4 seconds, and adopt 1% sodium carbonate solution to develop, after clear patterns, use the clear water clean surface for the 4KW exposure machine;
(5) after the surface dries up, adopt 120 ℃ printing ink is cured handled 30 minutes,
(6) use above-mentioned stainless steel etching solution that the stainless steel of handling was carried out etching 12 minutes, the control etch temperature is 25 ℃, adopts the clear water clean surface;
(7) configuration concentration is 5% NaOH solution in being furnished with hyperacoustic trough, and temperature is 80 ℃, the stainless steel after the etching is immersed in strips surface ink in the solution;
(8) the clean back of photosensitive-ink stripping is adopted clear water to clean and is carried out drying treatment.
Through obtaining etch depth after the treat surface is 0.105mm, edge clear, the smooth homogeneous of etching face, there are comparatively significantly lateral erosion and smooth cambered surface in the edge, reduce through pH value of solution after a large amount of etch processes, the etching face roughness changes less, and the foam that generates in the corrosion process is difficult for eliminating attached to workpiece surface.
Embodiment 3
1 liter of configuration stainless steel etching solution: wherein, iron trichloride 225 grams, 36% hydrochloric acid 40ml, hexanolactam 40 grams, nitric acid 30 grams, boric acid 35 grams, sodium polysulphide 3 grams, all the other are water.
Choose 1 of the 304 type stainless steel substrate handled through sandblasting.Adopt following technology to operate:
(1) to the dirty after drying surface-moisture of 304 type stainless steel substrate surface degreasings;
(2) uniformly spray one deck photosensitive-ink (model that the prosperous Hua Da in Shenzhen Science and Technology Ltd. produces is a HL-801B sensitization blue oil);
(3) adopt 80 ℃ surface ink dried 20 minutes;
(4) adopt power to carry out exposure-processed 4 seconds, and adopt 1% sodium carbonate solution to develop, after clear patterns, use the clear water clean surface for the 4KW exposure machine;
(5) after the surface dries up, adopt 120 ℃ printing ink is cured handled 30 minutes,
(6) use above-mentioned stainless steel etching solution that the stainless steel of handling was carried out etching 12 minutes, the control etch temperature is 35 ℃, adopts the clear water clean surface;
(7) configuration concentration is 5% NaOH solution in being furnished with hyperacoustic trough, and temperature is 70 ℃, the stainless steel after the etching is immersed in strips surface ink in the solution;
(8) the clean back of photosensitive-ink stripping is adopted clear water to clean and is carried out drying treatment.
Through obtaining etch depth after the treat surface is 0.088mm, edge clear, the smooth homogeneous of etching face, there are comparatively significantly lateral erosion and smooth cambered surface in the edge, substantially remain unchanged through pH value of solution after a large amount of etch processes, the etching face roughness changes less, and the foam that generates in the corrosion process is difficult for eliminating attached to workpiece surface.
Embodiment 4
1 liter of configuration stainless steel etching solution: wherein, iron trichloride 300 grams, 36% hydrochloric acid 70ml, nitric acid 20 grams, hexanolactam 60 grams, formic acid 10 grams, alginic acid 10 grams, ammonium nitrate 5 grams, sodium sulphite 4 grams, dimethyl siloxane 0.5 gram, all the other are water.
Choose 1 of the 304 type stainless steel substrate handled through sandblasting.Adopt following technology to operate:
(1) to the dirty after drying surface-moisture of 304 type stainless steel substrate surface degreasings;
(2) uniformly spray one deck photosensitive-ink (model that the prosperous Hua Da in Shenzhen Science and Technology Ltd. produces is a HL-801B sensitization blue oil);
(3) adopt 80 ℃ surface ink dried 20 minutes;
(4) adopt power to carry out exposure-processed 4 seconds, and adopt 1% sodium carbonate solution to develop, after clear patterns, use the clear water clean surface for the 4KW exposure machine;
(5) after the surface dries up, adopt 120 ℃ printing ink is cured handled 30 minutes;
(6) use above-mentioned stainless steel etching solution that the stainless steel of handling was carried out etching 12 minutes, the control etch temperature is 30 ℃, adopts the clear water clean surface;
(7) configuration concentration is 5% NaOH solution in being furnished with hyperacoustic trough, and temperature is 80 ℃, the stainless steel after the etching is immersed in strips surface ink in the solution;
(8) the clean back of photosensitive-ink stripping is adopted clear water to clean and is carried out drying treatment.
Through obtaining etch depth after the treat surface is 0.125mm, and edge clear, the smooth homogeneous of etching face, edge have comparatively significantly lateral erosion and smooth cambered surface, and the foam that generates in the corrosion process is easy to eliminate attached to workpiece surface.
Embodiment 5
1 liter of configuration stainless steel etching solution: wherein, iron trichloride 300 grams, 36% hydrochloric acid 80ml, nitric acid 35 grams, hexanolactam 70 grams, butyric acid 10 grams, isovaleric acid 10 grams, oxalic acid 10 grams, urea 10 grams, ammonium nitrate 10 grams, sodium sulphite 5 grams, n-Octanol 0.8 gram, all the other are water.
Choose 1 of the 304 type stainless steel substrate handled through sandblasting.Adopt following technology to operate:
(1) to the dirty after drying surface-moisture of 304 type stainless steel substrate surface degreasings;
(2) uniformly spray one deck photosensitive-ink (model that the prosperous Hua Da in Shenzhen Science and Technology Ltd. produces is a HL-801B sensitization blue oil);
(3) adopt 80 ℃ surface ink dried 20 minutes;
(4) adopt power to carry out exposure-processed 4 seconds, and adopt 1% sodium carbonate solution to develop, after clear patterns, use the clear water clean surface for the 4KW exposure machine;
(5) after the surface dries up, adopt 120 ℃ printing ink is cured handled 30 minutes;
(6) use above-mentioned stainless steel etching solution that the stainless steel of handling was carried out etching 12 minutes, the control etch temperature is 30 ℃, adopts the clear water clean surface;
(7) configuration concentration is 5% NaOH solution in being furnished with hyperacoustic trough, and temperature is 80 ℃, the stainless steel after the etching is immersed in strips surface ink in the solution;
(8) the clean back of photosensitive-ink stripping is adopted clear water to clean and is carried out drying treatment.
Through obtaining etch depth after the treat surface is 0.116mm, edge clear, the smooth homogeneous of etching face, there are comparatively significantly lateral erosion and smooth cambered surface in the edge, substantially remain unchanged through pH value of solution after a large amount of etch processes, the etching face roughness changes less, and the foam that generates in the corrosion process is easy to eliminate attached to workpiece surface.
Embodiment 6
1 liter of configuration stainless steel etching solution: wherein, iron trichloride 350 grams, 36% hydrochloric acid 50ml, hexanolactam 80 grams, nitric acid 45 grams, phosphoric acid 30 grams, citric acid 10 grams, glucose 10 grams, sodium sulphite 6 grams, silicone glycols 0.6 gram, all the other are water.
Choose 1 of the 304 type stainless steel substrate handled through sandblasting.Adopt following technology to operate:
(1) to the dirty after drying surface-moisture of 304 type stainless steel substrate surface degreasings;
(2) uniformly spray one deck photosensitive-ink (model that the prosperous Hua Da in Shenzhen Science and Technology Ltd. produces is a HL-801B sensitization blue oil);
(3) adopt 80 ℃ surface ink dried 20 minutes;
(4) adopt power to carry out exposure-processed 4 seconds, and adopt 1% sodium carbonate solution to develop, after clear patterns, use the clear water clean surface for the 4KW exposure machine;
(5) after the surface dries up, adopt 120 ℃ printing ink is cured handled 30 minutes;
(6) use above-mentioned stainless steel etching solution that the stainless steel of handling was carried out etching 12 minutes, the control etch temperature is 30 ℃, adopts the clear water clean surface;
(7) configuration concentration is 5% NaOH solution in being furnished with hyperacoustic trough, and temperature is 80 ℃, the stainless steel after the etching is immersed in strips surface ink in the solution;
(8) the clean back of photosensitive-ink stripping is adopted clear water to clean and is carried out drying treatment.
Through obtaining etch depth after the treat surface is 0.102mm, edge clear, the smooth homogeneous of etching face, there are very significantly lateral erosion and smooth cambered surface in the edge, substantially remain unchanged through pH value of solution after a large amount of etch processes, the etching face roughness changes less, and the foam that generates in the corrosion process is easy to eliminate attached to workpiece surface.
Embodiment 7
1 liter of configuration stainless steel etching solution: wherein, iron trichloride 300 grams, 36% hydrochloric acid 100ml, nitric acid 50 grams, hexanolactam 100g, urea 15 grams, boric acid 50g, sodium polysulphide 2 grams, OP-10 0.6 gram, all the other are water.
Choose 1 of the 304 type stainless steel substrate handled through sandblasting.Adopt following technology to operate:
(1) to the dirty after drying surface-moisture of 304 type stainless steel substrate surface degreasings;
(2) uniformly spray one deck photosensitive-ink (model that the prosperous Hua Da in Shenzhen Science and Technology Ltd. produces is a HL-801B sensitization blue oil);
(3) adopt 80 ℃ surface ink dried 20 minutes;
(4) adopt power to carry out exposure-processed 4 seconds, and adopt 1% sodium carbonate solution to develop, after clear patterns, use the clear water clean surface for the 4KW exposure machine;
(5) after the surface dries up, adopt 120 ℃ printing ink is cured handled 30 minutes;
(6) use above-mentioned stainless steel etching solution that the stainless steel of handling was carried out etching 12 minutes, the control etch temperature is 30 ℃, adopts the clear water clean surface;
(7) configuration concentration is 5% NaOH solution in being furnished with hyperacoustic trough, and temperature is 80 ℃, the stainless steel after the etching is immersed in strips surface ink in the solution;
(8) the clean back of photosensitive-ink stripping is adopted clear water to clean and is carried out drying treatment.
Through obtaining etch depth after the treat surface is 0.124mm, comparatively significantly lateral erosion and smooth cambered surface are arranged, substantially remain unchanged through pH value of solution after a large amount of etch processes, the etching face roughness changes less, and the foam that generates in the corrosion process is easy to eliminate attached to workpiece surface.
Embodiment 8
1 liter of configuration stainless steel etching solution: wherein, iron trichloride 250 grams, 36% hydrochloric acid 60ml, nitric acid 60 grams, hexanolactam 75 grams, phosphoric acid 35 grams, ammonium sulfate 10 grams, ammonium nitrate 5 grams, sodium sulphite 3 grams, OP-10 1 gram, all the other are water.
Choose 1 of the 304 type stainless steel substrate handled through sandblasting.Adopt following technology to operate:
(1) to the dirty after drying surface-moisture of 304 type stainless steel substrate surface degreasings;
(2) uniformly spray one deck photosensitive-ink (model that the prosperous Hua Da in Shenzhen Science and Technology Ltd. produces is a HL-801B sensitization blue oil);
(3) adopt 80 ℃ surface ink dried 20 minutes;
(4) adopt power to carry out exposure-processed 4 seconds, and adopt 1% sodium carbonate solution to develop, after clear patterns, use the clear water clean surface for the 4KW exposure machine;
(5) after the surface dries up, adopt 120 ℃ printing ink is cured handled 30 minutes;
(6) use above-mentioned stainless steel etching solution that the stainless steel of handling was carried out etching 12 minutes, the control etch temperature is 35 ℃, adopts the clear water clean surface afterwards;
(7) configuration concentration is 5% NaOH solution in being furnished with hyperacoustic trough, and temperature is 90 ℃, the stainless steel after the etching is immersed in strips surface ink in the solution;
(8) the clean back of photosensitive-ink stripping is adopted clear water to clean and is carried out drying treatment.
Through obtaining etch depth after the treat surface is 0.072mm, comparatively significantly lateral erosion and smooth cambered surface are arranged, substantially remain unchanged through pH value of solution after a large amount of etch processes, the etching face roughness changes less, and the foam that generates in the corrosion process is easy to eliminate attached to workpiece surface.
Comparative Examples 1
Dispose 1 liter of traditional stainless steel etching solution: wherein, iron trichloride 250 grams, 36% hydrochloric acid 50ml, nitric acid are 40 grams, sour ammonium 15 grams, and sodium sulphite 3 grams, OP-10 0.6 gram, all the other are water.
Choose 1 of the 304 type stainless steel substrate handled through sandblasting.Adopt following technology to operate:
(1) to the dirty after drying surface-moisture of 304 type stainless steel substrate surface degreasings;
(2) uniformly spray one deck photosensitive-ink (model that the prosperous Hua Da in Shenzhen Science and Technology Ltd. produces is a HL-801B sensitization blue oil);
(3) adopt 80 ℃ surface ink dried 20 minutes;
(4) adopt power to carry out exposure-processed 4 seconds, and adopt 1% sodium carbonate solution to develop, after clear patterns, use the clear water clean surface for the 4KW exposure machine;
(5) after the surface dries up, adopt 120 ℃ printing ink is cured handled 30 minutes;
(6) use above-mentioned stainless steel etching solution that the stainless steel of handling was carried out etching 12 minutes, the control etch temperature is 30 ℃, adopts the clear water clean surface;
(7) configuration concentration is 5% NaOH solution in being furnished with hyperacoustic trough, and temperature is 80 ℃, the stainless steel after the etching is immersed in strips surface ink in the solution;
(8) the clean back of photosensitive-ink stripping is adopted clear water to clean and is carried out drying treatment.
Through obtaining etch depth after the treat surface is 0.205mm, and lateral erosion is less, and the degree of roughness of etching face is comparatively obvious, very clear of the knuckle of etched edge slope and substrate surface.
Comparative Examples 2
Dispose 1 liter of traditional stainless steel etching solution: wherein, iron trichloride 300 grams, 36% hydrochloric acid 60ml, ammonium bifluoride 2 grams, thiocarbamide 5 grams, hydrogen peroxide 3 grams, hypochlorous acid 3 grams, all the other are water.
Choose 1 of the 304 type stainless steel substrate handled through sandblasting.Adopt following technology to operate:
(1) to the dirty after drying surface-moisture of 304 type stainless steel substrate surface degreasings;
(2) uniformly spray one deck photosensitive-ink (model that the prosperous Hua Da in Shenzhen Science and Technology Ltd. produces is a HL-801B sensitization blue oil);
(3) adopt 80 ℃ surface ink dried 20 minutes;
(4) adopt power to carry out exposure-processed 4 seconds, and adopt 1% sodium carbonate solution to develop, after clear patterns, use the clear water clean surface for the 4KW exposure machine;
(5) after the surface dries up, adopt 120 ℃ printing ink is cured handled 30 minutes;
(6) use above-mentioned stainless steel etching solution that the stainless steel of handling was carried out etching 12 minutes, the control etch temperature is 30 ℃, adopts the clear water clean surface;
(7) configuration concentration is 5% NaOH solution in being furnished with hyperacoustic trough, and temperature is 80 ℃, the stainless steel after the etching is immersed in strips surface ink in the solution;
(8) the clean back of photosensitive-ink stripping is adopted clear water to clean and is carried out drying treatment.
Through obtaining etch depth after the treat surface is 0.175mm, and lateral erosion is less, and the degree of roughness of etching face is comparatively obvious, very clear of the knuckle of etched edge slope and substrate surface.
Testing method
1, outward appearance
The range estimation configuration of surface, and test its etch depth.
2, glossiness test
The A-4460 glossometer that adopts German BYK company to produce detects, and test result sees Table 1.
3, roughness test
Surtronic 25 surface roughometers that adopt the gloomy company limited of Britain Taylor Hope to produce detect, and test result sees Table 1.
4, lateral erosion dimensional measurement
Employing Japan three rich models are that the QV image instrument of QV-X302P12-C is tested.
Table 1
Outward appearance Glossiness Roughness/um Side etching quantity/mm Embodiment 1 Etch depth is 0.095mm, and edge clear, the smooth homogeneous of etching face, edge have comparatively significantly lateral erosion and smooth cambered surface.Reduce through pH value of solution after a large amount of etch processes, the etching face roughness increases, and the foam that generates in the corrosion process is difficult for eliminating attached to workpiece surface. 30.6 0.66 0.096 Embodiment 2 Etch depth is 0.105mm, edge clear, the smooth homogeneous of etching face, there are comparatively significantly lateral erosion and smooth cambered surface in the edge, reduce through pH value of solution after a large amount of etch processes, the etching face roughness changes less, and the foam that generates in the corrosion process is difficult for eliminating attached to workpiece surface. 25.7 0.73 0.109 Embodiment 3 Etch depth is 0.088mm, edge clear, the smooth homogeneous of etching face, there are comparatively significantly lateral erosion and smooth cambered surface in the edge, substantially remain unchanged through pH value of solution after a large amount of etch processes, the etching face roughness changes less, and the foam that generates in the corrosion process is difficult for eliminating attached to workpiece surface. 32.3 0.56 0.094 Embodiment 4 Etch depth is 0.125mm, and edge clear, the smooth homogeneous of etching face, edge have comparatively significantly side 23.2 0.99 0.130 Erosion and smooth cambered surface, the foam that generates in the corrosion process is easy to eliminate attached to workpiece surface. Embodiment 5 Etch depth is 0.116mm, edge clear, the smooth homogeneous of etching face, there are comparatively significantly lateral erosion and smooth cambered surface in the edge, substantially remain unchanged through pH value of solution after a large amount of etch processes, the etching face roughness changes less, and the foam that generates in the corrosion process is easy to eliminate attached to workpiece surface. 22.6 0.90 0.123 Embodiment 6 Etch depth is 0.102mm, edge clear, the smooth homogeneous of etching face, there are very significantly lateral erosion and 0.88 smooth cambered surface in the edge, substantially remain unchanged through pH value of solution after a large amount of etch processes, the etching face roughness changes less, and the foam that generates in the corrosion process is easy to eliminate attached to workpiece surface. 27.9 0.78 0.114 Embodiment 7 Etch depth is 0.124mm, and comparatively significantly lateral erosion and smooth cambered surface are arranged, and remains unchanged substantially through pH value of solution after a large amount of etch processes, and the etching face roughness changes less, and the foam that generates in the corrosion process is easy to eliminate attached to workpiece surface. 21.6 1.03 0.140 Embodiment 8 Etch depth is 0.072mm, and comparatively significantly lateral erosion and smooth cambered surface are arranged, and remains unchanged substantially through pH value of solution after a large amount of etch processes, and the etching face roughness changes less, and the foam that generates in the corrosion process is easy to eliminate attached to workpiece surface. 39.3 0.75 0.075 Comparative Examples 1 Etch depth is 0.098mm, and lateral erosion is less, and etching face is comparatively coarse, etched edge slope and base 18.9 0.72 0.065 Very clear of the knuckle on material surface. Comparative Examples 2 Etch depth is 0.110mm, and lateral erosion is less, and etching face is comparatively coarse, very clear of the knuckle of etched edge slope and substrate surface. 20.5 1.05 0.076
The degree of roughness that has effectively reduced etched surfaces in the life-time service process that is added on by embodiment 2 visible heavy metal precipitators.Etching process is followed hydrionic consumption, for having stablized the etching solution system comparatively significantly effect is arranged by the adding of embodiment 3 visible pH regulator agent.Comparative Examples 1 and Comparative Examples 2 adopts traditional visible etching speed of etching solution system very fast, compares with embodiment 1 and embodiment 2 respectively, and lateral erosion is less, and etching face is comparatively coarse, very clear of the knuckle of etched edge slope and substrate surface.And the etching solution system that the present invention adopts is effectively improved the planeness of etched surfaces, and helps the carrying out of lateral erosion process, makes etched edge form slick arc surface.
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