推荐回答(2个)
可以进行电化学测试和物理机械测试,从而得到电化学行为和物理性能数据;如:结合力、耐腐蚀性、镀层厚度等等,看具体应用要求了。
补充:镀锌钢板的质量检验标准:
按生产及加工方法,镀锌钢板可分为以下几类[1]:热浸镀锌钢板(俗称镀锌铁皮)、电镀锌钢板、单面或双面差厚镀锌钢板、合金复合镀锌钢板等,除上述几种外,还有彩色镀锌钢板(通俗地称为彩板)、印花涂装镀锌钢板、聚氯乙烯叠层镀锌钢板等。此外,按用途可分为一般用、屋顶用、建筑外侧板用、结构用、瓦垄板用、拉伸用和深拉伸用等镀锌钢板。
优质品级镀锌板的质量要求包括规格尺寸、外观、镀锌量、化学成份、板形、机械性能和包装等几个方面。
1.包装
分为切成定尺长度的镀锌板和带卷镀锌板包装两种。一般铁皮包装,内衬防潮纸,外以铁腰子捆扎,捆扎牢靠,以防内装镀锌板相互摩擦
2.规格尺寸
有关产品标准(以下述及)都列明镀锌板推荐的标准厚度、长度和宽度及其允许偏差。另外,板的宽度和长度、卷的宽度也可按用户要求确定。
3.外观
表面状态:镀锌板由于涂镀工艺中处理方式不同,表面状态也不同,如普通锌花、细锌花、平整锌花、无锌花以及磷化处理的表面等。切成定尺长度的镀锌板及镀锌卷板不得存在影响使用的缺陷(以下详述),但卷板允许有焊接部位等若干不正常部分。
4.镀锌量
镀锌量标准值:镀锌量是表示镀锌板锌层厚度的一个普遍采用的有效方法。有两面镀锌量相同(即等厚镀锌)和两面镀锌量不同(即差厚镀锌)两种。镀锌量的单位为g/m2。
5.机械性能
(1)抗拉试验:一般说来,只有结构用、拉伸用和深拉伸用镀锌板有抗拉性能要求。
(2)弯曲试验:是衡量薄板工艺性能的主要项目。但各国标准对各种镀锌板的要求并不一致。一般要求镀锌板弯曲180o后,外侧表面不得有锌层脱离,板基不得有龟裂及断裂。
6.化学成份
对镀锌基板的化学成份的要求,各国标准规定不同。如日本就不要求,美国则要求。一般不作成品检验。
7.板形
衡量板形好坏有两个指标,即平直度和镰刀弯。板的平直度和镰刀弯的最大允许值标准有一定规定。
下面列出有关镀锌板的国外主要标准,以作参考[4,5]:
JIS G3302 镀锌钢板
JIS G3313 电镀锌钢板及钢带
ASTM A525 热浸镀锌薄钢板的一般要求
ASTM A526 商业级热镀锌薄钢板
ASTM 527 咬合成型级热镀锌薄钢板
ASTM 528 深冲级热镀锌薄钢板
ASTM A361 屋面和墙板用热浸镀锌薄钢板
ASTM A444 沟渠用热浸镀锌薄钢板
ASTM A446 结构级热镀锌薄钢板
ASTM A599 冷轧电镀锌薄钢板
ASTM A642 热镀锌特殊脱氧深冲级薄钢板
?OCT 7118 镀锌薄钢板
DIN 17162 部份1低碳钢热镀锌钢带和钢板
DIN 17162 部份2热镀锌薄钢板
JIS H0401 热浸镀锌试验方法
DIN 50952 热浸镀锌试验方法
你好,请问想检验什么,我是专业销售镀锌板的,可以查看我用户名和我取得联系。西安亨通建材有限公司。
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