CN102925941B - Secondary chromeplating process of printing round-net die - Google Patents
Secondary chromeplating process of printing round-net die Download PDFInfo
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- CN102925941B CN102925941B CN201210435144.0A CN201210435144A CN102925941B CN 102925941 B CN102925941 B CN 102925941B CN 201210435144 A CN201210435144 A CN 201210435144A CN 102925941 B CN102925941 B CN 102925941B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000008569 process Effects 0.000 title claims abstract description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 122
- 238000007747 plating Methods 0.000 claims abstract description 68
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 60
- 239000003292 glue Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims abstract description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 6
- WGLPBDUCMAPZCE-UHFFFAOYSA-N chromium trioxide Inorganic materials O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229940117975 chromium trioxide Drugs 0.000 claims abstract description 6
- GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 claims abstract description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 33
- 229910052804 chromium Inorganic materials 0.000 claims description 32
- 239000011651 chromium Substances 0.000 claims description 32
- 210000003205 muscle Anatomy 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 238000009713 electroplating Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 238000004026 adhesive bonding Methods 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 241000370738 Chlorion Species 0.000 claims description 2
- 230000004913 activation Effects 0.000 claims description 2
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims description 2
- 229940045511 barium chloride Drugs 0.000 claims description 2
- 229910001626 barium chloride Inorganic materials 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 abstract description 4
- 239000008213 purified water Substances 0.000 abstract 2
- 239000012212 insulator Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 description 12
- 239000010949 copper Substances 0.000 description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000002161 passivation Methods 0.000 description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 239000004327 boric acid Substances 0.000 description 4
- -1 dichromic acid amine Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 150000002815 nickel Chemical class 0.000 description 4
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 4
- 230000003245 working effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 238000003854 Surface Print Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000009978 fatclean Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011536 re-plating Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
A secondary chromeplating process for a printing round-net die includes: plating nickel on a processed die blank, and performing first-time chromeplating and second-time chromeplating, wherein the first-time chromeplating solution is prepared by 240-350g/l of chromium trioxide, 2-10g/l of chromium sesquioxide, 2-5g/l of sulfuric acid and purified water; and the second-time chromeplating solution is prepared by 80-140g/l of chromium trioxide, 1-8g/l of chromium sesquioxide, 200-700mg/l of chloridion and purified water. A layer of chromate film is added on the first-time chromeplating surface of the die blank and firmly bonded in hexagonal net points of the die blank, when insulator glue is embedded in the hexagonal net points of the die blank, the chromate film can be well bonded, and glue dropping cannot be generated. The printing round-net die produced by the secondary chromeplating process is high in surface smoothness, long in service life, good in net evenness and high in poring rate and overcomes the shortcomings existing in the prior art.
Description
Technical field
The present invention relates to chrome-plated process, particularly relate to the secondary chrome-plated process of printing cylinder mould.
Technical background
Printing cylinder, claims again nickel screen, is the consumable supplies of circular screen printer indispensability, and it is a jointless cylindrical shell cylindraceous, and surface arrangement has specific order number, is cellular evenly distributed sexangle mesh, sees accompanying drawing 1; Distinguished by order number, had 10 orders, 20 orders, 30 orders, 40 orders, 60 orders, 80 orders, 100 orders, 125 orders, 135 orders, 155 orders, 165 orders, 185 orders, 195 orders etc.; Distinguished by circumferential length, had 640 millimeters, 688 millimeters, 725 millimeters, 819 millimeters, 914 millimeters, 1018 millimeters etc.; Distinguished by cylinder length, had 1420 millimeters--3500 millimeters etc.; According to order number, the various combination of circumferential length and cylinder length, printing cylinder specification reaches hundreds of.
The manufacture of printing cylinder is take non-ferrous metal nickel as raw material, and by electroplating reaction, point two steps are made; The first step, at the nickelous chloride that contains finite concentration requirement, in the plating tank of single nickel salt and boric acid composition, take non-ferrous metal nickel as anode, take nickel molds as negative electrode, pass through electroplating reaction, on the muscle line that has specific order digital-to-analogue tool, produce single net, this step is called again " once plating "; Second step, at the nickelous chloride that contains finite concentration requirement, in the plating tank of single nickel salt and boric acid composition, take non-ferrous metal nickel as anode, take single net as negative electrode, pass through electroplating reaction, single net is electroplated to thickening, and reach the finished product with certain thickness and percentage of open area requirement, and being printing cylinder, this step is called again " secondary plating ".Being used for manufacturing the mould of single net, is that acquisition is qualified, and can the key of high-quality printing cylinder, be also manufacture high order to count one of core of printing cylinder.
Domestic existing printing cylinder mould, all adopts nickel plating fabrication process, and the manufacturing process of prior art nickel molds and printing cylinder manufacturing step are as follows:
1). the mould base preparatory stage: first by weldless steel tube Vehicle Processing to after nickel plating on the weldless steel tube of size → cleaning decontamination oil removing → after processing → plated nickel again copper facing to this copper roller external diameter of required gauge → Vehicle Processing and be polished down to size → by the concavo-convex formpiston extruding copper roller of customization order number, make mould base, on mould base surface, form cellular evenly distributed sexangle site and the copper muscle line with certain width, this step abbreviation " the pressure point " → mould base after pressure point is moved back to fat clean decontamination oil removing;
2). nickel molds preparatory phase: on the mould base through preparatory stage processing, blade coating isolator glue uniformly, be called for short after " gluing " → isolator glue high temperature baked and cured, isolator glue on worn copper muscle line, expose copper muscle line, and in the sexangle site on mould base surface, leave the isolator glue on blade coating isolator glue high temperature baked and cured → worn nickel muscle line uniformly on mould base surface of isolator glue → become after nickel plating nickel muscle line → again on copper muscle line, expose nickel muscle line → clean up, nickel molds has been produced, and waits printing cylinder to be produced;
3). the printing cylinder production phase: first must soak on nickel molds surface and water dichromic acid amine; make the nickel muscle line surface passivation of nickel molds; rinse mould; then put into the nickelous chloride that contains finite concentration requirement; in the plating tank of single nickel salt and boric acid composition; electroplating certain hour; reach after the thickness needing; hang out mould, be placed on die frame, by imposing external force extrusion mould; allow nickel coating separate with nickel molds; form a cylindrical shell of counting mesh with specific order cylindraceous, i.e. single net, this step claims again " once plating "; At the nickelous chloride that contains finite concentration requirement, in the plating tank of single nickel salt and boric acid composition, take non-ferrous metal nickel as anode, take single net as negative electrode, by electroplating reaction, single net is electroplated to thickening, and reach the finished product with certain thickness and percentage of open area requirement, be printing cylinder, this step claims again " secondary plating ".
In sum, according to prior art, at nickel molds preparatory phase 2), due to direct " gluing " in the sexangle site of the copper matrix after mould base pressure point operation, bonding force is bad, easily falls glue in printing cylinder production process, causes a large amount of moulds to scrap; Secondly, at mould base first after gluing high temperature baked and cured, isolator glue on worn copper muscle line, exposes copper muscle line, and isolator glue on follow-up worn nickel muscle line, expose in the polishing operation process of nickel muscle line, because the hardness of copper and mickel is not high, in polishing process, easily generate metal powder, the isolator glue surface in the sexangle site of embedding nickel plating mould base, form electrical conductor stria many and that nickel muscle line interweaves, be commonly called as " fishbone bar ".In the printing cylinder production phase, because " fishbone bar " in nickel molds conduction, in electroplate liquid, also can there is electroplating reaction, single net mesh that can cause production seriously stops up, cannot obtain qualified product, therefore must use salt acidleach moulding tool repeatedly, remove the object of " fishbone bar " to reach, cannot normally produce for a long time.By the time when " fishbone bar " removed, the isolator glue that sexangle site on mould is embedded in is also fallen by hcl corrosion, single net that " once plating " plates out is difficult to break away from moulds, and single net mesh is irregular, cannot normally produce at all, must go again gluing, so repeatedly more than once, can obtain substantially qualified nickel molds, formally put into production.In addition, because the hardness of nickel is not high, nickel molds is after polishing, its surface smoothness is not high, the printing cylinder that nickel molds is manufactured, and outside surface printing opacity is unintelligible, rough inner surface, in ROTARY SCREAM PRINTING process, easy wearing and tearing doctor, also accelerates the wearing and tearing of printing cylinder, reduces the work-ing life of printing cylinder.
Summary of the invention
Object of the present invention is exactly the secondary chrome-plated process that a kind of printing cylinder mould will be provided, it can overcome prior art produce nickel molds exist above-described shortcoming.The object of the present invention is achieved like this, and the secondary chrome-plated process of printing cylinder mould, is characterized in that: the mould base preparatory stage, the operation of chromeplated mold and nickel molds is consistent; The mould base processing is carried out to nickel plating, then carry out chromium plating for the first time and chromium plating for the second time; The compound method of chromium plating liquid is for the first time: according to coating bath volume, and according to chromium trioxide 240-350g/l, chromium sesquioxide 2-10g/l, the concentration requirement of sulfuric acid 2-5g/l, prepares plating solution with pure water, joins in plating tank, and temperature is controlled at 40-80 ℃; The compound method of chromium plating liquid is for the second time: according to coating bath volume, and according to chromium trioxide 80-140g/l, chromium sesquioxide 1-8g/l, the concentration requirement of chlorion 200-700mg/l, prepares plating solution with pure water, joins in plating tank, and temperature is controlled at 40-80 ℃.The present invention, by carry out chromium plating for the first time (Chrome Plating) on mould base surface, has increased hardness and the wear resistance of mould base; Again by passivation chromium plating for the second time (Chromating Plating), control suitable electric current and time, at mould base for the first time in chrome-plated surface, the chromate film that re-plating one deck is stable, make in its sexangle site that is firmly combined in mould base, therefore, in the time being embedded in isolator glue in the sexangle site of mould base, can be good at clinging, can not produce glue.The printing cylinder mould that secondary chrome-plated process is produced, surface smoothness is high, long service life, its net good uniformity processed, percentage of open area is high, is a kind of brand-new mould manufacturing method, has solved and has manufactured high order number, a technical bottleneck of high-precision printing circular screen photographic mould.Overcome nickel molds and easily come unstuck, work-ing life is short, cannot produce continuously its net lack of homogeneity processed, many weak points such as percentage of open area is low.
the present invention's advantage compared with prior art:
1) because the hardness of chromium is about 1000 Luo Shi hardness, the hardness of nickel is about 400 Luo Shi hardness, therefore the chromeplated mold of finally making has better hardness, wear resistance and longer work-ing life than nickel molds, can improve 3 to 5 times of work-ing lifes of mould, reduce molding total amount and production cost, every mould can be produced more printing cylinder, thereby reduces the production cost of every printing cylinder.
2) the mould percentage of A-class goods is high, in the production process of chromeplated mold, owing to having carried out secondary chromium plating, form the stable chromate film of one deck in the sexangle site of mould base, therefore, when after the sexangle site gluing at mould base, bonding force is good, in printing cylinder production process, is not easy glue.
3) because chromeplated mold is more wear-resisting than nickel molds, after long-time production, chromeplated mold still keeps the muscle line width consistent with original new die, thereby the printing cylinder of producing before and after guaranteeing has identical percentage of open area and homogeneity.And percentage of open area and homogeneity are one of important indicators for printing cylinder, it is the key factor that affects ROTARY SCREAM PRINTING quality.
4) nickel molds is in the process of the single net of manufacture, must soak on nickel molds surface and water dichromic acid amine, make the nickel muscle line surface passivation on nickel molds surface, after single net has been electroplated, by imposing external force extrusion mould, could allow nickel coating separate with nickel molds, all will water a dichromic acid amine and carry out the surface passivation of mould nickel muscle line owing to often making a single net, thereby cause a large amount of waste water and pollution; And produce printing cylinder with chromeplated mold, can be on chromeplated mold direct nickel plating list net processed, utilize the characteristic of nickel chromium triangle natural separation, as long as pushing gently, can make to electroplate single net and separate with chromeplated mold, thereby save the passivating process that waters dichromic acid amine of existing nickel molds, production technique is simplified, more science environmental protection, and the generation of having stopped waste water.
5) printing cylinder that chromeplated mold is manufactured, internal surface is more smooth, easier off-grid, the printing cylinder quality better of plating, in stamp process, little to the doctor loss of circular screen printer, save the cost of stamp enterprise.
6) chromeplated mold can be controlled at the footpath line width of mould in very trickle 0.015 millimeter, in the process by electroplating reaction list net processed, nickel crystal is more easily piled up upwards growth, under equal working condition, single net can obtain higher percentage of open area, is conducive to follow-up plating finished product printing cylinder net and keeps high percentage of open area.
Accompanying drawing explanation:
Fig. 1 is the cellular evenly distributed sexangle site of die surface of the present invention and muscle line schematic diagram;
Fig. 2 is that mould coating of the present invention launches schematic diagram;
1. weldless steel tube, 2. copper plate, 3. nickel layer, 4. chromium coating, 5. passivation chromium coating, 6. single net, 7. isolator glue, 8. site, 9. muscle line.
Embodiment
The secondary chrome-plated process of printing cylinder mould, its procedure of processing is as follows:
One, nickel plating operation step is poly-:
1). the mould base preparatory stage, the operation of chromeplated mold and nickel molds is consistent; The mould base processing is hung in to nickel bath nickel plating, and rotating speed is 50-70 revs/min;
2). according to order number and the size of mould base, on rectifier, setting electric weight is 15-200 ampere hours;
3). start rectifier, not pipe die base size, electric current is all arranged on 50 amperes;
4). electroplating after 3-5 minutes, according to order number and the size of mould base, electric current is increased to 150-300 amperes, until electroplated;
5) after having electroplated, stop operating, the mould base of slinging, with pure water rinsing mould base;
Two, chromium plating operation steps for the first time:
1) the mould base of Ni plated is moved in the coating bath for preparing chromium plating liquid for the first time, regulate drive unit, rotating speed is 40-80 revs/min;
2), according to order number and the size of mould base, on rectifier, setting electric weight is 1500-4000 ampere hours;
3) allow the uniform rotation 2-3 minutes in bath trough of mould base, make mould base reach tank liquor temperature;
4) start rectifier, start immediately to increase size of current, surge is carried out in mould base surface and anode surface, for guaranteeing the maximum activation on mould base surface, and the depassivation treatment effect of anode surface, rush current must arrive than normal electroplating current increases 10%-50%;
5), after mould base surface is activated, according to order number and the size of mould base, current setting is arrived to normal 2000-4000 amperes of the numerical value of electroplating, until electroplated;
6), after plating completes, the mould base of slinging, with purified rinse water mould base;
Three, chromium plating operation steps for the second time:
1) preparing for the second time in chromium plating liquid plating tank, first add 50 milliliters of hydrochloric acid, and add bariumchloride by the concentration of 5-60 mg/litre;
2) the mould base after chromium plating is for the first time moved in the plating tank for preparing chromium plating liquid for the second time;
3) accessory drive, starts transmission immediately, and rotating speed is 40-80 revs/min;
4) start rectifier, according to order number and the size of mould base, it is 300-1500A that electric current is set, and be 30-200 seconds working time;
5), according to order number and the size of mould base, by current reduction to 100-800A, be 60-400 seconds working time;
6) close rectifier, allow mould base rotate in bath trough;
7) stop operating, the mould base of slinging;
8) rinse mould base with clear water;
9) mould base moves in preheating oven, starts to rotate, and bakes curing;
Four, the gluing of mould base, high temperature cures and polishes:
On the above-mentioned mould base through secondary chromium plating processing, directly gluing, blade coating isolator glue uniformly, after high temperature baked and cured, isolator glue is left, the isolator glue on worn chromium plating muscle line in sexangle site in mould base surface, expose chromium plating muscle line, chromeplated mold is all made, and can directly put into production, and manufactures single net.
Claims (1)
1. the secondary chrome-plated process of printing cylinder mould, is characterized in that: the mould base preparatory stage, the operation of chromeplated mold and nickel molds is consistent; The mould base processing is carried out to nickel plating, then carry out chromium plating for the first time and chromium plating for the second time; The compound method of chromium plating liquid is for the first time: according to coating bath volume, and according to chromium trioxide 240-350g/l, chromium sesquioxide 2-10g/l, the concentration requirement of sulfuric acid 2-5g/l, prepares plating solution with pure water, joins in plating tank, and temperature is controlled at 40-80 ℃; The compound method of chromium plating liquid is for the second time: according to coating bath volume, and according to chromium trioxide 80-140g/l, chromium sesquioxide 1-8g/l, the concentration requirement of chlorion 200-700mg/l, prepares plating solution with pure water, joins in plating tank, and temperature is controlled at 40-80 ℃;
Its procedure of processing is as follows:
One, nickel plating operation step is poly-:
1). the mould base preparatory stage, the operation of chromeplated mold and nickel molds is consistent; The mould base processing is hung in to nickel bath nickel plating, and rotating speed is 50-70 rev/min;
2). according to order number and the size of mould base, on rectifier, setting electric weight is 15--200 ampere hour;
3). start rectifier, not pipe die base size, electric current is all arranged on 50 amperes;
4). electroplating after 3-5 minute, according to order number and the size of mould base, electric current is increased to 150-300 ampere, until electroplated;
5). after having electroplated, stop operating, the mould base of slinging, with pure water rinsing mould base;
Two, chromium plating operation steps for the first time:
1). the mould base of Ni plated is moved in the coating bath for preparing chromium plating liquid for the first time, regulate drive unit, rotating speed is 40-80 rev/min;
2). according to order number and the size of mould base, on rectifier, setting electric weight is 1500-4000 ampere hour;
3). allow mould base uniform rotation 2-3 minute in bath trough, make mould base reach tank liquor temperature;
4). start rectifier, start immediately to increase size of current, surge is carried out in mould base surface and anode surface, for guaranteeing the maximum activation on mould base surface, and the depassivation treatment effect of anode surface, rush current must arrive than normal electroplating current increases 10%-50%;
5). after mould base surface is activated, according to order number and the size of mould base, current setting is arrived to the normal numerical value 2000-4000 ampere of electroplating, until electroplated;
6). after plating completes, the mould base of slinging, with purified rinse water mould base;
Three, chromium plating operation steps for the second time:
1). preparing for the second time in chromium plating liquid plating tank, first add 50 milliliters of hydrochloric acid, and add bariumchloride by the concentration of 5-60 mg/litre;
2). the mould base after chromium plating is for the first time moved in the plating tank for preparing chromium plating liquid for the second time;
3). accessory drive, start immediately transmission, rotating speed is 40-80 rev/min;
4). start rectifier, according to order number and the size of mould base, it is 300-1500A that electric current is set, and be 30 seconds working time--200 seconds;
5). according to order number and the size of mould base, by current reduction, to 100-800A, be 60-400 second working time;
6). close rectifier, allow mould base rotate in bath trough;
7). stop operating, the mould base of slinging;
8). with clear water flushing mould base;
9). mould base moves in preheating oven, starts to rotate, and bakes curing;
Four, the gluing of mould base, high temperature cures and polishes:
On the above-mentioned mould base through secondary chromium plating processing, directly gluing, blade coating isolator glue uniformly, after high temperature baked and cured, isolator glue is left, the isolator glue on worn chromium plating muscle line in sexangle site in mould base surface, expose chromium plating muscle line, chromeplated mold is all made, and can directly put into production, and manufactures single net.
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| CN201210435144.0A CN102925941B (en) | 2012-11-05 | 2012-11-05 | Secondary chromeplating process of printing round-net die |
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| CN201210435144.0A CN102925941B (en) | 2012-11-05 | 2012-11-05 | Secondary chromeplating process of printing round-net die |
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| CN104087978A (en) * | 2014-07-05 | 2014-10-08 | 翟安民 | Manufacturing method of printing rotary screen with high mesh number and high aperture ratio |
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| CN108774739A (en) * | 2018-08-15 | 2018-11-09 | 江苏双宇镍业高科有限公司 | High rigidity high life chrome-plated mould and its mould making process |
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| JPH08325793A (en) * | 1994-07-20 | 1996-12-10 | Kawasaki Steel Corp | Production of electrolytically chromated galvanized steel sheet excellent in resistance to corrosion, fingerprinting and chromate elution and in continuous productivity and to provide electrolytic chromating bath used in that case |
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| CN104087978A (en) * | 2014-07-05 | 2014-10-08 | 翟安民 | Manufacturing method of printing rotary screen with high mesh number and high aperture ratio |
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| CN102925941A (en) | 2013-02-13 |
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Effective date of registration: 20180524 Address after: 214500 Zhenjiang Pinglu, Jingjiang City, Jiangsu Province, No. 50 Patentee after: Jiangsu Dongfang Ni net Co., Ltd. Address before: 214500 Zhenjiang Sheng Road, Jingjiang Sheng Temple, Taizhou, Jiangsu 50 Patentee before: Di Anmin |
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Denomination of invention: Secondary chromeplating process of printing round-net die Effective date of registration: 20200228 Granted publication date: 20140625 Pledgee: Bank of Jiangsu Co., Ltd. Jingjiang sub branch Pledgor: Jiangsu Dongfang Ni net Co., Ltd. Registration number: Y2020980000387 |
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Denomination of invention: Secondary chromium plating process of printing round screen die Effective date of registration: 20210722 Granted publication date: 20140625 Pledgee: Bank of Jiangsu Co.,Ltd. Jingjiang sub branch Pledgor: Jiangsu Dongfang Ni net Co.,Ltd. Registration number: Y2021990000640 |