4230014
Accelerated corrosion test 加速腐蚀测试
Atmospheric corrosion 大气腐蚀
Orientation 定位
This standard is identical to the previously issued standard STD 1027,14, issue 1.
这个版本与以前的版本标准STD 1027,14第1版一致
Contents 内容
1 Scope 范围
2 Apparatus 设备
2.1 Temperature and humidity control 温度与湿度控制
2.2 Application of salt solution 盐溶液的应用
2.3 System for drying of wet test objects 干燥湿测试物的系统
2.4 Requirements on salt solution 盐溶液的要求
3 Test objects 测试物
4 Procedure 过程
4.1 Arrangement of test objects 测试物的准备
4.2 Exposure conditions of test cycle 测试周期的暴露条件
4.3 Duration of test 测试的持续时间
5 Evaluation of results 结果的评估
6 Test report 测试报告
1 Scope 范围
This standard defines an accelerated corrosion test method to be ud in asssing the corrosion re
sistance of metals in environments where there is a significant influence of chloride ions, mainly as sodium chloride from a marine source or by winter road deicing salt.
这个标准定义了一个腐蚀测试的方法用来评估金属在有氯化物离子的环境中的耐腐蚀性.眼珠要是来自大海的氯化钠或着冬天用来除冰盐
The standard specifies a test procedure to be ud in conducting the accelerated corrosion test to simulate atmospheric corrosion conditions in a controlled way.
这个方法指明了一个测试过程用来操控模拟大气腐蚀条件下的加速腐蚀测试
A suitable test equipment to fulfil the conditions for this standard is propod.
提议一个适合的测试设备来满足这个标准的条件
In this standard, the term ”metal” includes metallic materials with or without corrosion protection. 在这个标准中，周期金属包括有保护和无保护的材料
The accelerated laboratory corrosion test applies to:
实验室中进行的加速腐蚀测试适用于
- metals and their alloys 金属和其他合金
- metallic coatings 金属的涂层
- chemical conversion coatings 化学转化涂层
- organic coatings on metals 金属上的有机涂层
The method is suitable for comparative testing in the optimization of surface treatment systems for test panels, specially designed specimens and components.
这个方法适用于在试板表面处理系统中最优化的比较测试，特别是有计划的样本和元件
2 Apparatus 设备
2.1 Temperature and humidity control 温度与湿度控制
怀孕可以用护肤品吗The climate chamber shall be designed so that the following test conditions can be obtained, controlled and monitored during the test.
气候室应该设计成能够得到下列测试条件，在测试中能够控制和监视
During a period of constant climate conditions an accuracy of ±3 % RH for the mean value in relative humidity shall apply, which corresponds to a minimum temperature accuracy requirement of in this ca ±0,6 °C.
在测试期间连续的气候条件相对湿度的精确平均值±3 %应适用.在这个情况下相应的温度最小值要求为±0,6 °C
For the instantaneous maximum deviation from t relative humidity a value of ±5 % RH in the range from 50 % RH to 95 % RH at 40 °C shall apply.
对于与设定的相对湿度值±5 %的瞬间偏离，在40 °C相对湿度范围从50 %-90%
The climate chamber must be designed so that the relative humidity may be changed linearly with respect to time, from 95 % RH to 50 % RH within 2 h. In figure 1 a suitable design of a climate chamber is shown.
气候室应设计成这样，先队湿度可以按照时间线性的变化，在2小时内从50%到90%.在图1中一个适合的气候室如图示
To meet the temperature and humidity accuracy requirements, the climate chamber shall be equippe
d with an apparatus to provide evenly distributed efficient circulation of air to cure small temperature and humidity variations in the chamber.
为了满足温度和湿度精确要求，气候室应该装备一个设备提供均匀有效的空气环流来确保温度和湿度的细小变化
Sufficient insulation of the chamber walls and lids is required in order to avoid excessive condensation on the surfaces.
要求气候室的墙和盖子充分的绝缘为了避免在表面上过多的浓缩
The humidity and temperature levels of the climate chamber during a test cycle shall be continuously monitored.
在整个测试周期中，气候室的温度和湿度应该是连续监控的
The humidity and temperature nsors should reflect the climate conditions in the very test area.
here的反义词温度和湿度传感器应该真实的反映测试区域的气候条件
For measurements of the relative humidity u a hygrometer designed for measurements at high humidity levels, e.g. a gold mirror dew point meter.
对于湿度的测量用专为测量高湿度等级而设计的湿度计
For temperature measurements, the u of a resistance thermometer is required.
对与温度的测量用要求用耐高温温度计
1 Test chamber 试验箱
2 Machinery unit 机械单位叙利亚女孩
3 Test object area 测试物区域
4 Well insulated walls/lids 好的绝缘墙/盖子
5 Air distribution plate 空气分配器
6 Swaying tube/member with spraying nozzles 带喷嘴的摇动管/装备
7 Air purge outlet 空气净化出口
8 Outlet 出口
9 Climatization unit (cooling/heating/humidification)顺应气候装置(冷/热/潮湿)蒋勋简介
10 Wet and dry Pt100 nsors (psychrometric nsor) 100Pt干湿探头
说成语11 Cooling machine 冷却机械
12 V esl with salt solution + pressurizing pump 有盐溶液的容器+压力泵
13 Motor and link arms for swaying motion of precipitation tube/member
振动管/设备的电动机和连接臂
14 Control unit 颜色单位
15 Electronics and regulatory devices 电子和调整设备
2.2 Application of salt solution 盐溶液的应用
It is advisable to install a spraying device for salt application inside the climate chamber.
在试验箱内必须有一个储存装置用来收集喷雾掉下的盐溶液
2.2.1 Spraying device 喷雾装置
The spraying device shall be capable of producing a finely distributed, uniform spray falling on the test objects with a flow corresponding to a downfall of 15 mm/h ±5 mm/h.
喷雾装置应该能够产生一个好的分布式的均衡的喷雾洒在试板表面，连续流量落下的量是15 毫米/小时±5毫米/小时.
When using spray the solution must not be reud. 当使用喷雾时盐溶液不能再次使用
The device for salt spraying shall preferably be made of a number of flat spraying nozzles mounted in ries on a rail or tube in such a way that their spray patterns are partly overlapping, e figure 2.
盐雾装置应该更适合制成平滑的喷嘴固定在一系列的横杆或光子上，用这样的方式，它们喷雾的类型就部分重叠，见图2
A swaying mode of the tube member must be implemented in order to distribute the salt solution uniformly over the test area.
水管组织摇动的模式必须实行为了均衡的分配盐溶液在测试区域上
The spraying device shall be made of, or lined with, materials resistant to salt solution corrosion. The u of plastics material is recommended. 喷雾装置应该由耐盐溶液腐蚀的材料制成Recommended nozzle type: Spraying Systems Uni Jet 800050VP. C/C mounting of nozzles on the supporting tube 50-60 cm (if approx. 1 m above the test object).
推荐的喷嘴类型：喷雾装置喷头800050VP.C/C喷嘴固定在50-60厘米的支撑管上
A suitable design of spraying device is shown in figure 2. 喷雾装置适合的设计如图2
2.2.2 Salt application by immersion 盐溶液的应用是浸泡
If a spraying facility is not available, an alternative to spraying is a complete immersion of the test objects in salt solution.
如果喷雾设备不可用，那么就将测试物完全浸泡在盐溶液中来代替喷雾
This is a less favourable alternative than spraying due to uncontrolled leaching and a risk for contamination of the test objects.
这是一个比喷雾稍微差一点的方法，由于无法控制过滤和减小测试物被污染的风险
Alloys of magnesium and some pure aluminium alloys are very nsitive to dissolved ions of other metals (forming cathodes when reduced), and should not be immerd together with other metals.
镁合金和铝合金对于溶解其他金属的离子都非常敏感(形成阳极时减少)并且不应该和其他的金属浸泡在一起
2.3 System for drying of wet test objects 湿测试物的干燥系统
After having been sprayed intil wet, all test objects shall be dried from excessive visible wetness in order to regain climate control.
在经过喷雾保湿后，所有的测试物应该干燥过多的可见湿度为了恢复气候控制
The climate chamber should therefore be equipped with a system for drying in a forced airflow. 气候箱应该装备一个空气环流强制干燥系统
Forced drying is preferably arranged by supercooling and reheating an internal circulating flow.
强制干燥更适宜准备内在的过冷和重新加热环流
Alternatively, drying may be arranged by letting a forced flow of pre-heated ambient air ventilate the chamber.
作为选择，干燥可安排一个强制环流预热周围空气使试验箱通风
For a 3climate chamber of the volume 1-2 m an airflow rate of 50-100 l/s is recommended.
对于一个3米的气候箱，体积的1-2米推荐的空气环流速度为50-100 升/秒
The forced airflow shall not be pre-heated to such temperature levels that a temperature of 40 °C will be exceeded. 强制空气环流应该不预热至如此的温度，温度为40 °C 将超过范围
If wetting is achieved by immersion in salt solution, drying under ambient conditions may be permitted.
如果湿度可以用浸泡盐溶液得到，那么在周围环境条件下干燥可能被允许
2.4 Requirements on salt solution 盐溶液的要求
The test solution shall be prepared by dissolving sodium chloride in deionized water to a concentration of 1,0 % ±0,1 % (percent by weight).
试验溶液应该配制可溶解的氯化钠溶解在去离子水中浓度为1,0 % ±0,1 % (重量百分比) The salt can allow a maximum amount of the following impurities in the sodium chloride:
在盐溶液中最多允许以下数量的杂质:
Copper 0,00 1 % 铜0,00 1 %
Nickel 0,01 % 镍0,01 %
Sodium iodide 0,1 % 碘化钠0,1 %
The total level of contamination counted on dry salt must not exceed 0,4 percent by weight.
总的污染物总量等级占干燥盐的重量不得超过0.4%
The 1 % NaCl solution shall be acidified to a 4 concentration of 1x10 M hydrogen ions.
1%的氯化钠溶液应该被酸化成4单位浓度为1x10 M氢离子
This is preferably done by a standard addition of sulphuric acid, e.g. 1 ml of 0,5 M H SO to 10 l of salt solution, 2 4which yields a pH of approximately 4,2.
这个的完成是用一个标准增加硫酸，例1毫升盐溶液形成的浓度大约为4.2
When using automatic spraying, the solution must not be reud.
当使用自动喷雾时盐溶液不能重复使用
When manual immersion is applied, the solution is preferably renewed before each immersion event. 当使用人工浸泡时，盐溶液更适合在每次浸泡前换新的溶液
As a rule, different types of test material shall not be immerd in the same solution.
作为规则，不同类型的测试材料应该不能浸泡在相同的溶液中
However, painted zinc coated or cold rolled steel may be expod together.
但是，镀锌涂层和冷轧钢应可能一起暴露
This also applies when different materials are integrated on the same test object.
这也适用于当不同的测试材料都用在相同的试板上的时候
3 Test objects 测试物
The number and type of test objects, their shape, and their dimensions shall be lected according to the specification for the material or product being tested. 测试物的数量和类型，它们的形状和尺寸应该根据指示说明挑选材料或产品测试
When this is not specified, the details shall be mutually agreed between the interested parties.
当这个没有指明时，这些详情应该由相关双方协商
For each ries of test objects, data records shall be kept including the following information:
对于每个系列的测试物，数据的记录应该保留包括以下信息
a)Specification of the material to be tested.
b)测试材料的说明
b) If the test specimen is subjected to intentional damage in the coating, the shape and the location of the damage shall be described, as well as how the damage was achieved
如果测试的样本有故意的损伤在涂层上，那么损伤的位置和形状应该描述并说明损伤是如何形成的.
The orientation of the damage during testing shall also be specified.
测试中损伤定位也应该指出
c) Description of the preparation of the test object, including any cleaning applied before testing and any protection given to edges.
描述试板的准备，包括测试前的清洁和边缘的一些保护
天秤座男生的性格d) Information of reference material or materials with which the test specimen is to be compared.
参考材料与试板材料之间的比较信息
e) How the test object is to be examined and which properties are to be assd, e ction 5. 试板是怎样检验的并且评估了哪些性能见图5
4 Procedure 程序
4.1 Arrangement of test objects 试板的排列
The test objects shall be placed in the cabinet on stands with their test surface facing upwards.
测试物应该直立放在试验箱中并且将测试面向上
The angle at which the surface of the test specimens is expod in the cabinet is important.
测试样本在试验箱中表面暴露位置的角度是很重要的
For flat test objects the angle at which the test surface is inclined shall preferably be 15° ±5°from the vertical.对于平坦的测试物测试表面与垂直线的角度更适合于倾向15° ±5°
In the ca of irregular surfaces, for example entire components, this angle shall be adhered to as cloly as possible.
如果是不规则的表面，例如整个元件，应该尽可能接近这个角度
The stands with the test objects shall be placed on the same level in the climate chamber.
架子和试板应该在试验箱中应该放在相同水平高度
The stands shall be made of inert non-metallic material, such as glass, plastics or suitably coated wood. 架子可以是惰性的非金属材料制成的，如玻璃，塑料或适合已油漆的木头二年级学生日记
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If it is necessary to suspend test object, the material ud shall on no account be metallic but be of synthetic fibre, cotton thread or other inert insulating material.
如果有必要掉挂测试物，应该使用的材料不应该是金属而是合成纤维，棉线或其他合成绝缘材料
The stands shall be designed in such a way that they do not obstruct passing air flow and at the
