Coloring mechanism of single nickel salt and cause of colored batches occurred during coloring are introduced.
介绍了单镍盐着色机理以及着色时产生色斑的原因。
The desulfurization over different metal borides and the choices of suitable nickel salt precursor and amount of reducing reagent were conducted.
研究了噻吩类型硫在金属硼化物上的原位还原深度脱硫。
A great deal of research needs to be done on the productivity, resource recovery rate and working conditions improvement of nickel salt production technology.
指出镍盐生产工艺仍较落后，需在提高生产效率和资源回收率，改善生产环境等方面进行大量的研究工作。
In this paper the N-isopropyl-O-toluidine has been synthesized by means of co-catalysis used sulfuric acid as main catalyst and Nickel salt as catalytic promoter.
本文研究了以硫酸为主催化剂、镍系过渡金属为助催化剂的中压液相催化法合成n -异丙基邻甲苯胺。
By the reduction on industrial Chromic anhydride-methanol, the trivalent chromium main salt was made. The technological formula and standard of Chromium-Nickel alloy electroplating were given.
采用工业铬酐-甲醇还原法制备三价铬主盐，给出了电镀铬-镍合金工艺配方与工艺规范并对镀层性能进行了测试。
The foam metal nickel has the advantage of good heat conductivity and the molten salt has the advantage of large heat storage quantity per unit weight or volume.
泡沫金属镍具有传热性能好，熔融盐具有蓄热量大、化学稳定性好等优点。
The dipping sequence is ferrous salt, nantokite and nickel water solution.
浸渍顺序依次为亚铁盐水溶液、铜盐水溶液、镍盐水溶液。
The method using soluble calcium salt for regeneration of waste electroless nickel plating liquor, in which the lactic acid used as complexing agent and hypophosphite used as redcing agent is studied.
研究了采用可溶性钙盐对以乳酸为络合剂，次磷酸盐为还原剂的失效化学镀镍溶液的再生。
The lead-free nickel free white and bright nickel substitute plating process…bright nickel substitute tin salt 30g 666 lead-free nickel free white and …
批发采购电镀助剂-供应666无铅无镍光亮厚白铜锡（电镀助剂）批发…
The lead-free nickel free white and bright nickel substitute plating process…bright nickel substitute tin salt 30g 666 lead-free nickel free white and …
批发采购电镀助剂-供应666无铅无镍光亮厚白铜锡（电镀助剂）批发…
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