Low-zinc phosphating process of 288 (Italy H/19 passivation) an ammonia even finish (A04 ~ 9) an edge marked with a cross a salt spray test. Experimental basis: salt spray test according to the U.S. ASTMB11715NaCI perform continuous spray. Test results: low-zinc phosphate corrosion-sided fork line width of 2m, while the general line of zinc phosphide single-sided fork corrosion test piece width 2.6ram, shown in Figure 5 (c) (d), shows low zinc phosphate coating After loading significantly better corrosion resistance. (C) ring 5 (c) low-speech-based coating after salt spray Lin Photo (d) solid 5 (d) P Bo of zinc coating after salt spray Photo (2) low-phosphate coating adhesion with loop determination is based on the focus reed standard 50461 IVECO determination method evaluation. Test process is: A low-zinc Lin orange shade of a thick coating adhesion swimming in a test; A & P a thick coating of zinc phosphate vaginal orange electrophoresis in a test commanded focus; A3 a thick coating of zinc and calcium an electrophoretic measured adhesion. An evaluation method based on IVECO50461 standards, according to the O-level, 1, 2 ... ... evaluation. The results in Table 5. Table 5 kinds of membrane adhesion evaluation of the tomb of a transcript of garlic degree l l electric pull surface adhesion evaluation of the appearance of zinc alkaline l35 ~ X00 fluoride level I smooth the whole army general zinc grouping 35 to 401 I skin a small amount of straw. Zhulan Lan Lan!!! Zhu! J =! Zhu Zhu Chenglan Mexico Note: 0 dressing well, a grant from the lower 2 Valerian rug Ji can be seen in Table 5, the low thickness of zinc phosphate warm as a high cathodic electrophoretic paint the bottom, its adhesion significantly superior to the general called zinc, calcium zinc phosphating film. Integrated low-zinc phosphating process pilot study found that low zinc stone roller t the performance of fluid by the main salt composition, the main salt, process factors accelerator content, use and maintenance and other factors. Production process. Only strict implementation of technology standards, strengthen management, to get good Xue Mang t of low-zinc phosphating Qi showing the unique advantages. Otherwise, there will be undesirable results, so. Low zinc phosphate coating process and other pre-treatment process, as enhanced maintenance and management is very important. References [1] (Central JD.B. Vladimir Star Man's book: : anonymous on the table works well by request.! gB0 clamor in respect 2Q ~ 1 (on the next section 3oc page) must first sealing surface pit with scraper cleaning, King moved rust paper, and then acetone degreasing, followed by Beierzhuona two-component polymer alloy repair, l spit construction requirements to 2tl ratio and mix thoroughly dirty mud, in the pretreated ash pits at knife coated with a cloud scraping leveling, such as polymer clay too high or alloy can not be bought to also be equipped with their own system, using titanium powder epoxy or stainless steel powder epoxy clay, but the metal powder to the more New York j better. the main agent of metal powder 80 + epoxy 2O%, the main agent: curing agent = 9. 1 (weight), and this clay sticky and strong, good corrosion resistance. good dimensional stability and durability. Beierzhuona together boxes polymer clay is the main advantage of fast curing, after 1 to 2 hours after hardening by the payment Park sandpaper grinding leveling can be put into use. epoxy powder metal clay, slow hardening, may be more appropriate hardener, can also be heated to 5O ℃ infrared light around, to speed up the hardening process by the James To prevent the drop of the sealed crevice corrosion to occur, can be handled well in the entire sealing surface had to take the following measures: (1) painting or covering the gap described above to prevent corrosion or corrosion agent an anti-corrosion paste rubber (2) refer to the Japanese patent [3l, can be sealed at the upper and lower surface layer of zinc-rich paint brush, respectively. and then apply a thin layer on both sides of the gasket mixed with molybdate powder (or molybdenum powder) and zinc powder sealant. (the sealant Hardware stores sell). Mo; 'in the cracks to prevent chloride ion concentration to promote passivation of the surface again. the role of zinc from the anode to produce zinc hydroxide, so that the seam pH> 9, to protect the metal substrate and this methodology is simple and practical, if the switch to aluminum sheet asbestos gasket pad rafters, there are certain benefits through the comprehensive sets of measures, anti-corrosion effect is remarkable. to prevent the occurrence of crevice corrosion. References f1] Qi Paul Lutheran, etc.: B Li Review .63 (4) 31 ~ B (1981> [2] # hydrofoil, etc.: piping installations. (3) 52 ~ B9 (19B4) [3] Hosaka Lutheran, etc.: Zhao S5 - ~ 25281 (10Bg) [4], the other Rio Morihiro: Zhao 5B a 15Gg8t (19BI). Zhao 5q-t2751 (19B4) 289 相关的主题文章： Stainless steel electrolytic polishing process resStainless steel electrolytic polishing process resralph lauren roma
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