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ZCMETAL忠创金属智造——热镀锌和冷镀锌的区别

返回列表 来源: 发布日期: 2019.01.04

热镀锌和冷镀锌的区别

The difference between hot-dip galvanizing and cold-dip galvanizing


1、热镀锌又称为热浸镀锌,他是在高温下把锌锭融化,在放入一些辅助材料,然后把金属结构件浸入镀锌槽中,使金属构件上附着一层锌层。 热镀锌的优点在于他的防腐能力强,镀锌层的附着力和硬度较好;


Hot-dip galvanizing is also called hot-dip galvanizing.It melts the zinc ingot at high temperature, puts some auxilliary materials into the galvanizing bath,and then dips the metal structural parts into the galvanizing bath,so that a layer of zinc is attached to the metal components.The advantages of hot-dip galvanizing are its strong anti-corrosion abillty,good adhesion and hardness of galvanized layer.

“冷镀”即“电镀”,即把锌盐溶液通过电解,给镀件上镀层,一般来说不用加热,上锌量很少,遇到潮湿环境很容易脱落。冷镀锌也叫电镀锌 ,是利用电解设备将工件经过除油、酸洗后放入成分为锌盐的溶液中,并连接电解设备的负极;在工件的对面放置锌板连接在电解设备的正极,接通电源,利用电流从正极向负极的定向移动,就会在工件上沉积一层锌。

"Cold plating"means"electroplating".That is,zinc salt solution is electrolyzed to coat the plated parts. Generally speaking, no heating is needed.The amount of zinc on the plated parts is  very small,and it is  easy to  fall off  in wet environment.Cold galvanizing,also known as galvanizing,is the use of electrolytic equipment;on the opposite side of the workpiese,place a zinc plate to connect the positive electrodes of the  electrolytic equipment,turn on the power supply,and use the current to  move from the positive to the negative electrodes in a directional way,a layer of zinc will be deposited on the workpiece.   


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2.热镀锌(galvanizing) 针对钢格栅板,强烈建议用热镀锌

Galvanizing is strongly recommended for steel grilles.

 

热镀锌是化学处理,属于电化学反应。

Hot dip galvanizing is a chemical treatment and belongs to electrochemical reaction.

 

冷镀锌是物理处理,只是在表面刷一层锌,所以锌层易脱落。建筑施工中多采用热镀锌。

Cold galvanizing is a physical treatment,only a layer of zinc is brushed on the surface,so the zinc layer is easy to fall off.Hot-dip galvanizing is often used in building construction.

 

连续热镀锌工艺:钢材→加热→冷却至镀锌温度→镀锌→冷却

Continuous hot dip galvanizing process:steel heating cooling to galvanizing temperature galvanizing cooling


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冷镀锌就是电镀锌,只有10-50g/m2,其本身的耐腐蚀性比热浸镀锌相差很多。采用电镀锌的价格相对便宜一些。

Cold galvanizing is galvanizing,only 10-50g/m2,its corrosion resistance is much different than hot dip galvanizing.The price of galvanizing is cheaper.

 

热镀锌是钢体在热浸的条件下对表面镀锌,它的附着力很强,不容易脱落,热镀锌管虽然也出现锈蚀的现象,但在很长的周期可以满足技术、卫生要求。

Hot-dip galvanizing is a kind of galvanizing on the surface of steel body under hot-dip condition. It has strong adhesion and appears rust phenomenon,it can meet the technical and sanitay requirements in a long period.


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3.工艺区别

Process differentiation

首先工艺的区别是:热镀锌是将工件除油、酸洗、浸药、烘干后浸入溶化的锌液里一定时间,提出来即可。

First of all,the difference of the process is that hot-dip galvanizing is to remove oil,pickle,dip medicine,and immerse the workpiece in the molen zinc solution after drying for a certain time, then put forward.

冷镀锌也叫电镀锌,是利用电解设备将工件经过除油、酸洗后放入成分为锌盐的溶液中,并连接电解设备的负极;在工件的对面放置锌板连接在电解设备的正极,接通电源,利用电流从正极向负极的定向移动,就会在工件上沉积一层锌。

Cold galvanizing,also known as galvanizing,is the use of electrolytic equipment to remove oil and pickle the workpiece into the solution of zinc salts,and connect the negative electrodes of the electrolytic equipment;on the opposite side of the workpiece,place a sinc plate to connect the power supply,and use the current to move from the positive to the negative electrodes of the electrolytic equipment,turn on the negative electrodes in a directional way,a layer of zinc will be deposited on the workpiece.


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镀锌成品的区别:热镀锌外表没有冷镀锌细腻光亮,但锌层厚度方面热镀锌是冷镀锌的几十倍。防腐蚀性能也是电镀锌的几十倍。

The difference between galvanizde products:Hot-dip galvanizing is not as delicate bright as cold-dip galvanizing,but the thickness of galvanizde layer is tens of times that of cold-dip galvanizing.corrosion resistance is dozens of times that of galvanizing.

热镀锌也称热浸锌,是将钢铁工件经过除油、除锈,呈现出无污、浸润的表面,立即浸入到预先将锌加热融熔了的镀槽中去,在工件表面形成一层锌镀层的方法。

Hot dip galvanizing,also known as hot dip galvanizing,is a method of forming a layer of zinc coating on the surface of the workpiece by removing oil and rust,presening a stainless and infiltrating surface,and immersing immediately in a galvanizing bath that melts zinc in advance.

冷镀锌:将同样经过了除油、除锈,呈现出无污、浸润的工件挂入专门的电镀槽里的阴极上,阳极用锌。接通直流电源,阳极上的锌离子向阴极迁移,并在阴极上放电,使工件镀上一层锌层的方法。

Cold galvanizing is the same after oil removal,rust removal,showing a stainless,infiltrating workpiece hanging in a dedicated electroplating bath cathode,zinc anode.Connecting the DC power supply.the zinc ion on the anode migrates to the cathode,and discharges on the cathode,so that the workpiece is coated with zinc.

热镀锌 :镀层较厚,一般为30-60微米,镀层防腐能力较高。适合于户外工作的钢铁制件,如高速公路围栏、电力铁塔、大尺寸紧固件等较为“粗糙”的工件的长期防锈。较早的铁质自来水管也是热镀锌的。

Hot-dip galvanized coatings are thicker,generally 30-60 microns,and have higher corrosion resistance.Suitable for outdoor work of steel parts, such as highway fences,power towers,large-scale fasteners and other relatively "rough" parts of long-term rust.Earlier iron tap pipes were also galvanized.

电镀锌:工件表面光滑平整,但是因为镀层比较薄,一般在5-30微米以内,所以防腐蚀的时间会比较短。都用在室内使用制件的防锈,如机壳底、面板,小尺寸紧固件等。

The surface of the workpiece is smooth and smooth by galvanizing,but because the coating is relatively thin,usually within 5-30 microns,the time of coorosion prevention will be shorter.It is used for rust prevention of indoor parts,such as chassis bottom,panel,small size fasteners,etc.


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专业服务国际、国内星级酒店整体金属设计产品的咨询、方案优化、制作深化、加工和安装。

Professional services international and domestic star-rated hotel overall metal design product consultation, program optimization, production deepening, processing and installation.

专业服务景观、艺术、陈设类的金属雕塑的咨询、方案优化、制作深化、加工和安装。

Professional service landscape, art, display metal sculpture consultation, program optimization, production deepening, processing and installation.

专业服务金属高端产品的整体解决方案和系统落地执行者。

The overall solution and system implementer of professional service metal high-end products.


广东忠创智造科技有限公司是一家设计开发、制造、销售、现场安装服务于一体的金属整体解决方案公司。本公司工厂占地面积约5000平方米,拥有电脑辅助软件,先进的机械设备、把产品、工艺性能设计、切割、焊接、成型等服务制造出高档金属制品。通过分解和制造过程中与专业团队的合作,我们为客户提供了更好的产品体验、完整的服务体系和最佳的解决方案。我们与世界顶尖的设计公司HBA、CCD & UAP 以及世界著名的酒店,(威斯汀、喜来登、希尔顿 & 四季)的长期合作。
Guangdong Zhongchuang Intellectually manufacturing Technology Co.,Ltd.is a metal solution company which integrates design, development, manufacturing, sales, on-site installation and service. The company's factory covers an area of about 5000 square meters, with computer-aided software, advanced mechanical equipment, product, process performance design, cutting, welding, forming and other services to produce high-grade metal products. Through the cooperation with professional teams in the process of decomposition and manufacturing, we provide customers with better product experience, complete service system and the best solution. We work with the world's top design companies HBA, CCD & UAP and world-famous hotels (Westin, Sheraton, Hilton & Four Seasons)Long term cooperation.


广东忠创智造科技有限公司

地址:广东省佛山市禅城区澜石石头村西便街一巷五号

体验馆展厅地址:广东省佛山市禅城区绿景一路盛南新都B区21号

电话:0757-83137017 82718158 28837249

联系人:燕燕、Kikee(外贸)、Waston(外贸)

联系电话:13411833248、13929904854、13928578824

网址:www.zcmetal.net

Guangdong Zhongchuang Intellectually manufacturing Technology Co.,Ltd.

Address: No. 5, 1st Lane, Xibian Street, Lanshi Stone Village, Chancheng District, Foshan City, Guangdong Province

Exhibition Hall Address: No. 21, Shengnan Xindu B District, Lujing Road, Chancheng District, Foshan City, Guangdong Province

Tel: 0757-83137017 82718158 28837249

Contacts: Yanyan, Kikee (Foreign Trade), Waston (Foreign Trade)

Contact numbers: 13411833248, 13929904854, 13928578824

Website: www.zcmetal.net







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