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镀锌方管之热度与冷镀的区别在哪里?

发布时间:2019-04-24人气:29
沧州地区春节前期方管价格将不再变动厂家大…方管沧州方管市场价格持稳。市场方面:春节将至,方管厂家大多陆续放假,全国物流公司也陆续停运,市场成交偏差,不少方管厂家也基本完成节前补货操作。据方管厂家反馈今日沧州地区各 方管厂家到90辆货车,约2万多吨货物。据悉沧州地区各方管厂家在本周五开使陆续放假,市场基本不在成交。故此综合来看,沧州地区…

无锡镀锌方管热度与冷镀的区别:镀锌方管是一种具以热轧或冷轧镀锌带钢或镀锌卷板为坯料经冷弯曲加工成型后再经高频焊接制成的方形截面形状尺寸的空心方形的截面型钢钢管;或将事先做好的冷弯空心型钢管再经热浸镀锌加工而成的镀锌方矩管

The difference between hot and cold galvanized square pipes in Wuxi is that the galvanized square pipes are hollow square section steel pipes with square section shape and dimension made by cold bending and forming with hot-rolled or cold-rolled galvanized strip or galvanized coil sheet and high frequency welding, or galvanized square pipes made by hot dipping and galvanizing. 镀锌方管的分类

Classification of galvanized square tubes

无锡镀锌方管从生产工艺上是分为热镀锌方管和冷镀锌方管的。正是由于这两种镀锌方管的加不相同也就造就了它们很多不同的物理和化学性质。总的来说它们在强度、韧性和机械性能方面都有很多的区别。

Wuxi galvanized square pipe is divided into hot galvanized square pipe and cold galvanized square pipe in terms of production technology. It is precisely because of the different addition of these two galvanized square tubes that they have many different physical and chemical properties. Generally speaking, they differ in strength, toughness and mechanical properties.

热镀锌方管

Hot-dip galvanized square tube

热镀锌方管:是在使用钢板或者是钢带卷曲成型后焊接制成的方管,并在这种方管的基础上将方管置于热镀锌池中经过一系列化学反响有形成的一种方管。热镀锌方管的生产工艺较为简答,但是生产效率是很高的,品种规格也多,但这种方管所需要的设备和资金很少,和适合小型镀锌方管厂家的生产。但是从强度上来说这种钢管的强度是远远低于无缝方管的。

Hot-dip galvanized square pipe: a square pipe made by welding steel plate or steel strip after coiling and forming. On the basis of this square pipe, square pipe is placed in hot-dip galvanized pool and formed through a series of chemical reactions. Hot-dip galvanized square pipe production process is relatively simple, but the production efficiency is very high, variety specifications are also many, but this kind of square pipe requires little equipment and funds, and suitable for small-scale galvanized square pipe manufacturers. But in terms of strength, the strength of this kind of steel pipe is far lower than that of seamless square pipe.

冷镀锌方管

Cold Galvanized Square Pipe

而冷镀锌方管是在所用的方管上利用冷镀锌的原理来使方管具有防腐蚀的性能。与热镀锌不同冷镀锌涂料主要通过电化学原理来进行防腐,因此必须保证锌粉与钢材的充分接触,产生电极电位差,所以钢材表面处理很重要。

The cold galvanized square pipe is used to make the square pipe have anti-corrosion performance by using the principle of cold galvanizing. Different from hot-dip galvanizing, cold-dip galvanizing coatings are mainly anti-corrosion based on electrochemical principle. Therefore, it is necessary to ensure full contact between zinc powder and steel to produce electrode potential difference, so surface treatment of steel is very important.

冷、热镀锌方管的区别

Differentiation between cold galvanized square tubes and hot galvanized square tubes

镀锌方管有热镀锌方管和冷镀锌方管两大类。热镀锌方管有湿法、干法、铅锌法、氧化还原法等。不同热镀锌方法的主要区别在钢管酸浸清洗后,用什么方法活化管体表面提高镀锌质量。现生产中主要采用干法和氧化还原法,其特点见表。

Galvanized square tubes can be divided into hot galvanized square tubes and cold galvanized square tubes. Hot-dip galvanized square pipe has wet method, dry method, lead-zinc method, oxidation-reduction method and so on. The main difference between different hot-dip galvanizing methods is how to activate the surface of pipe body to improve galvanizing quality after acid leaching cleaning. Dry process and redox process are mainly used in production, and their characteristics are shown in table.

冷镀锌的锌层表面十分光滑致密、组织均匀;具有良好的力学性能和抗腐蚀能力;锌耗比热镀锌低60%~75%。电镀锌在技术上有一定的复杂性,但对单面镀层,内外表面镀层厚度不同的双面镀层,以及薄壁管镀锌等皆须采用此法。

The surface of cold galvanized zinc coating is smooth, compact and uniform in structure. It has good mechanical properties and corrosion resistance. The consumption of zinc is 60%-75% lower than that of hot galvanized zinc. Zinc plating is technically complicated, but it is necessary to use this method for single-sided coating, double-sided coating with different thickness of inner and outer surface coating, and thin-walled tube galvanizing.

近期沈阳市场方管价格或弱稳运行厂家开始办…方管沈阳市场方管价格平稳,市场尚未开动。今日期螺保持震荡走高的态势,最终收于3427,今日沈阳当地现货市场维持稳定,目前东北地区几乎 全员停摆,下游现货需求近乎为零。加之非常时期,疫情导致市场冷淡停顿,本周方管厂家开始办公,但绝大部分都是远程进行工作。不过成交方面惨淡,难有出货。 而工地方面则早已完全停工。库存… 贵阳方管价格或将以稳为主窄幅震荡运行厂家…方管今天贵阳市场镀锌方管价格小幅上涨。今天,螺纹钢期货继续上涨态势,收盘3719涨32。贵阳方管厂家开市后普遍拉涨价格出货,不过市场成交一般。据客户反映,方管厂家心态不同,部分方管厂家对后市看 好,继续挺价;也有部分方管厂家快进快出,已出货为主,暗降价格出货。库存方面,贵阳市场镀锌方管库存总量25万吨左右,较上周…
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