1、 The decoration method of plastic surface treatment1. overview the process of the decoration processs -painting .-electroplating -in mold decoration-printing -texture (brush)2. painting batch panting line ,continuous painting line3. the content of the paints resin ,solvent , pigment ,additive . 4. t
2、he normal resin content the following resin alkyl , phenolic ,amino sugar , acrylic ,epoxy resin ,polyurethanes plijuriein5. the content of the pigment .plasmid ,bedye, special paint 6. the type of additive stabilizer ,dispersant ,anti-setting agent7. the drying method of paints 8. volatilization ,
3、syncretize, oxidation, crosslinking, 架橋反應 ultraviolet radiation.9. the thickness of the painting CASHEW 1015mAKZO NOBEL 2025m大世紀 2025m10. the problem of the painting the spary painting is too thick the particle of the paints is so big . Degree of uniformity is not good The base material is not prope
4、rThe panits affect the intensity .Stain in the paints11. imd (in mold decorating )the steps of IMF 1. Prepare and make some film is called liminate .2. print the graphics inks and gry thoroughly .3. remove the ist surface laminate 4. hot air 5. forming (injection )6. UV curing for increasing it resi
5、stant scratch .12. the material of the film 13. PC ,PMMA , Polyester.PET .14. the adventages and disadvantage use the PC Benefits Clarity Ease of cutting/printing Compatibility with moulding resin Disadvantages Form precision ( 0.3mm) Flexibility (embossed switches) Not inherently weatherable Chemic
6、al resistance Poor pencil hardnessUse the PMMA Benefits Clarity Good forming behaviour ( 0.15mm) Excellent weathering Pencil hardness Disadvantages Brittle (cutting handling problems) Potential adhesion problems to resin Form can relax in moulding tool Chemical resistanceUse the PET Benefits Excelle
7、nt flex resistance Excellent chemical resistance Improved formability (form precision not yet determined) Disadvantages Cost Compatibility with moulding resin Relaxation in mould Limited supplier choice Not yet commercialPENCIL TESTINGPMMA GOOD PET OK PC bad 15. the advange of the IMF PROCESS TECHNO
8、LOGY1) The printing process chose the silkscreen printing it is east for change the film of the artwork .alomst a week .2) For build some product which need doog quality in mechanical strength .we usual chose the material as PC ,for instance .latch .3) Recemtly ,there are a lot of supplier which own
9、 mature technology .16 the disadvantage of IMF1) It is difficult to raise the capacity ,because the produce process is not continuous .2) It is easy to scratch and hurt the surface ,because the film is usually use the meterial as pc and PET .the PMMA is better than the both .but it is very difficult
10、 to solve the problem that deal with the material with the print ink .so it can not build some product with metalized appearance 3) In the process , it is easy to make some misktake case the film spalling .4) The cost is so high because only very few company can do it . 17)the process of thr peint (
11、Silkscreen printing). Movable printing) Hot stamping)17 TextureTexture is a process that using the chemical etching method to engrave the texture on the tooling surface .Sandblast can control the glossiness .18(Electroplating)Electroplating s purpose is plating the metalized deposit on the product .
12、 it can change the size ，performence .such as getting a beautiful metalized appearance ,protect rust, wear,oiling 、electrical conductivity,intensity,weatherable 、HT for protect carburizing,滲碳、氮化 、nitridationThe element of the electroplatingThe outside circuit , 外部電路 陰極、或鍍件(work)、掛具(rack)。 電鍍液 (bath
13、solution)。 陽極 (anode)。 鍍槽 ( plating tank ) 加熱或是冷卻器(heating or colling coil )非導體金屬化方法(Method of Metalizing Nonconductors)非導體金屬化除了電鍍(Electroplating) 方法外還有如真空電鍍 (vacuum metalizing)、陰極濺射法 (cathode sputtering)及金屬噴射法(metal spraying) 。非導體電鍍法須先將非導體表面形成導電化,其過程是將物件用機械或化學方法粗化(roughening)得到內鎖表面 (interlocking su
14、rface)然後披覆上導電鍍層電鍍前處理流程分類上架 (依素材外觀選擇適合掛具 ) 脫脂清洗 (溫度.濃度.時間 )粗化 (溫度.濃度.時間)中和 (溫度.濃度.時間)水洗 (自來水連續循環 )敏化 (溫度.濃度.時間 )水洗 (自來水連續循環 )活化 (溫度.濃度.時間 )水洗 (自來水連續循環 )化學鎳完成 電鍍處理流程(一)上架 (選擇合適掛具 )超音波清洗 (時間. 電流 )鍍銅 (溫度.濃度.時間.電流 .電壓.大小 )水洗 (自來水連續循環 )鍍鎳 (溫度.濃度.時間.電流 .電壓.大小.PH 值 )選擇以下六種不同電鍍鎳層色澤及功能性 半光澤鎳 高流鎳 全光澤鎳 微孔鎳 沙丁鎳(
15、 霧鎳) 鎳合金(古銅) 電鍍處理流程(二)水洗鎳層後可視顏色及功能性.鍍以下四種不同色澤鉻 (裝飾性) 青銅感 (青古銅) 錫鎳合金 (黑鎳) 黃金 (K 金)純水洗淨 烘乾 OQC 檢驗目前公司對塑膠件外觀的測試規範硬度測試 (Hardness Test)黏著力測試 (Adhesion Test)耐磨測試 (Abrasion Test)抗化學測試 (Chemical Resistance Test)抗測試 (UV Test)硬度測試負 荷：作用角度：使用器具：Mitsubishi 2H 鉛筆合格標準：沒有刮痕黏著力測試非破壞性測試測試方法：使用 3M#595 膠帶 5cm 長度貼於表面後急
16、拉合格標準：表面塗料成 coating 層不能被拉起破壞性測試測試方法：以刀片在表面劃出方格(熱固性 1mm*1mm,熱塑性 2mm*2mm)，再用 3M#595 膠帶貼上後急拉合格標準：可容許在方格中 15%以下的塗料或 coating 層被移除耐磨測試測試方法：RCA 測試機台，使用 11/16“寬的帶狀白紙，每分鐘 17cycles荷 重：175g合格標準：不見磨痕 抗化學測試測試方法：酸性測試55C，曝露時間 24,48,72 小時鹼性測試60C，曝露時間 24,48,72 小時合格標準：表面經測試後無任何改變抗測試測試方法：在 60C，200 小時的 UV 光照射(波長 313nm)合格標準：表面經測試後無任何改變7,.
