铬酸盐

不同表面状态镀锡钢板铬酸盐钝化膜中铬元素的XPS分析

XPS Analysis of Chromium Element in Chromate Passivation Film Formed on Tinplate in Different Surface State

据此，建立了测定铬酸盐转化膜中Cr（Ⅵ）和Cr（总）的新方法。

A new method to determine the contents of Cr (ⅵ) and total Cr in the chromate conversion layer was accordingly established .

非晶态Fe－W镀层铬酸盐钝化膜耐蚀机理探讨

On corrosion resistance of chromated passive film on amorphous Fe-W deposits

镀锡钢板铬酸盐钝化膜中铬的X射线光电子能谱分析

X-ray photoelectron spectroscopy analysis of chromium element in chromate passivation film formed on tinplate

重铬酸盐法中回流时间对COD测定值影响的探讨

Effect of reflux time on COD measurement value by dichromate method

重铬酸盐法中回流时间与COD值关系初探

Preliminary Approach the Relation of Reflux Time and COD in Dichromate Method

又考察了pH、改性沸石用量及振荡时间对HDTMA-沸石吸附去除水中铬酸盐效果的影响。

In addition , the effect of pH , HDTMA-zeolite amount and shaking time on the adsorption were investigated .

报导了以SEM为表征手段，对重铬酸盐钝化处理的黄铜制品进行了表面形貌分析，就其防腐性能进行了测试。

In this paper , the surface characterization of the brass inactivated by dichromates is analyzed by SEM , and its anticorrosion property is tested .

因此，在测定工业废水中的COD时，完全可以用微波消解法取代经典的重铬酸盐法。

It is obvious that microwave digestion method can be used to replace the classic dichromate method when measuring COD in industrial wastewater .

重铬酸盐明胶（DCG）全息图退化的机理分析及抗潮方法之一

Theory analysis of DCG holograms degeneration and one of anti humidity methods

采用快速消解分光光度法测定水样中的COD，操作简单、测定快速、结果准确。与经典的重铬酸盐法相比，测定结果具有较好的比对性；

The rapid digested spectrophotometry method applied to detect COD in the water is simple and fast with accurate result by comparing with typical dichromate method .

并与铬酸盐钝化处理方法进行了对比，得出BTA可取代铬酸盐的钝化处理方法；

Compared with chromate passivation , BTA passivation can take the place of it .

通过对比测试，结果发现使用自动检测仪器方法与使用重铬酸盐法测定不同水样的COD值时，两者没有显著性差异。

Through the contrast test , the author discovered that no obvious difference could be found in determining COD by using both methods of instrumental detection and dichromate process .

本文就接枝明胶对重铬酸盐明胶（DCG）全息性能的影响进行了研究。

In this paper , the effect of the graft gelatin on properties of dichromated gelatin holography was studied .

铝上的阻挡型阳极氧化膜浸泡在不同pH的铬酸盐/重铬酸盐溶液中时，膜的电容会不断增大，通常都把这一现象归因于阳极氧化膜的单纯的均匀减薄。

Natural immersion of barrier-type anodic films on aluminium in chromate / dichromate solutions of varying pH leads to a progressive increase in the film capacitance which is normally attributed to simple uniform thinning of the anodie films .

HDTMA改性沸石对水中铬酸盐的吸附

Adsorption of Chromate Onto HDTMA-Modified Zeolite in Water

给出了电镀Zn-Ni基三元合金和铬酸盐钝化的工艺参数，并对各影响因素进行了分析。

The technological parameters of electroplating ternary alloy and chromate passivation were given and the factors influencing the parameters were analysed .

从生物化学和蛋白质的裂解机制出发，提出一种新的重铬酸盐明胶（DCG）浮雕形成方法&化学裂解刻蚀法。

Chemically cleaving-etch method was presented to form relief modulation in gelatin based on the analysis on the cleavage of protein .

记录在重铬酸盐明胶上的Lippmann全息图颜色控制的一种新途径

A New Way to Control the Color of Lippmann Holograms Recorded in Dichromated Gelatin

其实“达克罗”一词是英文：DACROMET即非电解锌铬酸盐涂层。

In fact ," Dacromet " is an English name : DACROMET means non-electrolytic zinc chromate coating .

使用X射线光电子能谱（XPS）分析方法，对镀锡铬酸盐钝化钢板中铬元素的含量、价态以及不同价态化合物的含量进行了研究，并对镀锡钢板铬酸盐钝化膜的形成机理进行了探讨。

The content and chemical valence of chromium element , and the content of compounds in different chemical valence in chromate passivation film formed on commercial tinplate via a cathodic dichromate treatment were studied by X-ray photoelectron spectroscopy ( XPS ) .

研究了一种新的印制板用电解铜箔后处理工艺，依次进行电镀Zn-Ni基三元合金、铬酸盐钝化、浸有机膜等。

A new post-treatment technics on electrolytic copper foil used for printed board was studied , including electroplating Zn-Ni based ternary alloy , chromate passivation , dipping for organic film .

利用醋酸调节转化液的pH值，可提高磷酸盐-高锰酸盐转化膜中锰的氧化物的含量，大大提高膜层的耐蚀性能，所形成的磷酸盐-高锰酸盐转化膜耐蚀性超过传统的铬酸盐转化膜。

More Mn element on the coating is produced by using acetic acid to adjust the pH value of the phosphating bath and the corrosion resistance of the coating can be improved . The phosphate-permanganate conversion coating can provide more effective protection than that of traditional chromate conversion coating .

对快淬Nd-Fe-B永磁粉末采用硅烷耦联剂、重铬酸盐及其还原剂进行表面处理。研究了包覆处理前后快淬Nd-Fe-B磁粉的抗氧化性能。

The oxidation resistance of rapidly quenching Nd Fe B was investigated before and after surface treatment . The silicone oil , the dichromate and the reducer were used to realize the surface treatment .

概述了研制的钢的环保型防锈颜料（替代铬酸盐）的防锈抑断性能。在3.5%（质量分数）NaCl的中性和酸性水溶液中，对5种常用钢的防锈性能比铬酸盐好；

This article has reported an environmental friendly rust inhibitive pigment ( chromate replacement ) for iron and steel , which shows better rust inhibitive property in 3.5 % ( m / m ) neutral or acidy NaCl solution than chromates for 5 commonly used steel .

第三章采用了铬酸盐氧化法和EDTA滴定法这两种方法来测试K2FeO4和BaFeO4的纯度并进行了比较，制得K2FeO4、BaFeO4的纯度可分别达到97.7%和96.7%。

In the third chapter , the purity of ferrate was determined by chromate oxidation method and EDTA titration method . The result indicated the purity of K_2FeO_4 and BaFeO_4 is 97.7 % and 96.7 % respectively .

提高配方中RMT含量、细AP的含量或采用RMT/铬酸盐组合催化剂的方法都可将NA/AP/HTPB推进剂高压压强指数降低到045以下。

The pressure exponent of NA / AP / HTPB propellant is reduced to 0.45 under high pressures by means of raising the content of RMT , the fine particle AP or using RMT / chromic acid salt composite catalysts .

报道不经任何染料敏化处理的重铬酸盐－三醋酸纤维素酯（DCCTA）全息记录材料的红敏性。

The red sensitivity of dichromated cellulose triacetate ( DCCTA ) holographic re-cording material without any dye sensitization is reported .

通过电极极化曲线测量和盐雾试验等方法，研究了热固型锌基铬酸盐转化涂层（TCCF）和电镀锌钝化层（CCF）在3.5%NaCl中性溶液中的电化学行为和防蚀性。

The electrochemical behaviour and corrosion resistance of thermosetting zinc based chromate conversion film ( TCCF ) and chromate conversion film ( CCF ) on zinc in 3 . 5 % NaCl neutral solution have been investigated .

采用铬酐&硫酸体系或者重铬酸盐并用熔融氧化工艺法，都能够成功地对4Cr13不锈钢进行激光相变强化前的预处理。

Results have been achieved as follow : 4Cr13 stainless steel manages to be pretreated before laser transition hardening with chromate-vitriol or dichromate .