酸洗

It is used extensively in industrial processing of metals and concentrating of some ore s; in boiler scale removal, food processing, metal cleaning, and pickling; and as a chemical intermediate, laboratory reagent, and alcohol denaturant.

工业上广泛使用盐酸来处理金属和提炼某些矿物，或用于锅炉除垢、食品加工、金属清洁和酸洗，还可作为化学中间体、实验室试剂以及酒精变性剂。

So the proposed method in this dissertation not only meet the requirements for fossil-fuel unit set in GB/T 12145-1999, but also can effectively restrain condensate and feed water system corrosion. Thereby the proposed method can reduce the loss by corrosion's leading accident, lower Fe content in boiler feed water, slow the boiler's scaling speed, delay boiler's chemical cleaning interval, effectively enhance unit's reliability, usability and using life and solve the problem of poisonous chemical deoxidant. So the proposed method can economize substantial expense for power plant.

所以，本文所提出的汽包炉有限氧化性水化学工况不但能满足GB/T12145-1999中对火力发电机组及蒸汽动力设备的要求，而且可有效抑制凝结水和给水系统的腐蚀，减少因这些部位腐蚀损坏而引发的事故停机损失，降低锅炉给水中的金属含量，减轻炉内的结垢速度，延长锅炉的酸洗间隔，有效提高机组的可靠性、可用率和使用寿命，同时也解决了有毒化学除氧剂的使用问题，为电厂节省大笔运行费用。

New type of water chemistry for utility drum boiler and its principle and characteristic Two kinds of water chemistry's main principle and characteristic are detailedly analyzed. Against the problem of high eroding speed, high Fe content in feed water and boiler water, high scaling speed, short chemical cleaning interval, needing poisonous chemical deoxidant, etc for drum boiler's deoxidization water chemistry and difficulty of using oxidation water chemistry, a new type of water chemistry is put forward on the basis of analyzing the characteristic of whole power station's water steam cycle system, principle of two kinds of water chemistry and their practical effect in every cycle stage. Considering two water chemistry's merit, a new water chemistry called Limited Oxidation Water Chemistry is put forward, which is a local slight oxidization no-deoxidant water chemistry. And the proposed method's principle, control parameter, applying condition, start-lay up and emergency measures are initially calculated and analyzed.

三、新型汽包炉水化学工况的提出及其原理和特点详细分析了国内外现行两大类水化学工况处理的核心原理和特点，针对现行汽包炉还原性水化学工况处理所存在的系统腐蚀速度相对较大、给水和炉水铁浓度高、锅炉结垢速度快、机组酸洗间隔短、无法避免有毒化学除氧剂的使用以及氧化性水化学工况在汽包炉机组上应用的困难等问题，在详细分析电站整个水蒸汽循环系统的特点、两类水工况处理的原理和对循环中各段处理的实际效果等的基础上，综合两者的优点，提出了一种新型的局部轻微氧化性无除氧剂汽包炉水化学工况－"汽包炉有限氧化性水化学工况"处理原理，并初步计算、分析和确定了该种新型水化学工况的主要工艺控制参数、应用条件、启停与紧急情况处理等。

The bonding strength of adhesive/metal can be affected by surface pretreatments,the effect of various surface pretreatments such as grinding with emery paper,acid etching,phosphating and blasting on the bonding strength by the shearing test are aim to ravel.

利用拉伸剪切实验系统地研究了砂纸打磨、喷砂、酸洗和磷化四种表面处理方法对粘结剂粘结强度的影响，并结合扫描电镜、表面粗糙度测试仪对金属表面形貌的研究，结合能谱测定拉剪试样破坏面的成分数据，详细分析了不同表面处理方法影响界面粘结强度的作用机理。

Further more, the fractal feature of acid treated RDF residue is also discussed. The surface of residue seems smoother and form Euclidean plane after acid treatment.

对半焦的分形维数分析表明，酸洗后表面变得光滑，形成欧氏平面。

Covering about 25,000 square meters of area,our company have experienced designers, foundryman and skillful workers. A complete set of acidwashing, parkerizing surface process facilities and spray lines are fully equiped in the company.

本公司厂区占地25000多平方米，拥有一整套自动酸洗、磷化表面处理设备、喷涂流水线生产设备和多位经验丰富的工艺设计师、铸造技师和熟练操作工人。

It can be used for sour wash, hot processing, galvanization and galvanization units.

强度足够，有广泛的使用价值，可用于酸洗、热处理、镀锌和镀锌机组中。

Apply to the chemical, fertilizer, caustic soda, salt, and other industries, especially suitable for ammonium bicarbonate, ammonium chloride, Glauber's salt, cotton seed, and other pickling solid-liquid separation .

适用于化工、化肥、制碱、制盐等行业，特别适用于碳酸氢铵、氯化铵、芒硝、棉花籽酸洗等固液分离

Apply to the chemical, fertilizer, caustic soda, salt,other industries, especially suitable for ammonium bicarbonate, ammonium chloride, Glauber's salt, cotton seed,other pickling solid-liquid separation.

适用于化工、化肥、制碱、制盐等行业，特别适用于碳酸氢铵、氯化铵、芒硝、棉花籽酸洗等固液分离。

It is thought by analyses that the cause of piebald wire is reffection diference of light at rough surface which is due to higher temperature and higher O 2 content in furnace in annealing of half finished product to make steel wire oxidation loss ,to make steel wire face rough after acid pickling.

分析认为形成"花丝"的原因是半成品在退火时由于炉温过高及炉内富氧造成氧化烧损、酸洗后的钢丝表面粗糙，对光的反射与正常表面不一样所致。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了