3d捕鱼

您好,欢迎访问济南顺健金属制品有限公司官方网站! 加入收藏 | 联系我们

contact
行业新闻当前位置:3d捕鱼-新闻资讯 > 行业新闻 >

球墨井盖为什么那么结实?

来源:http://www.zgcjxdw.com添加时间:2020-05-22 11:39:23

在城市马路上每隔几百米就能看到一个井盖,平常并不会有太多人去留意它,乃至有时候还嫌它妨碍。

A well cover can be seen every few hundred meters on the city road. Usually, not many people pay attention to it, or even sometimes think it's obstructed.

尽管井盖看着并不起眼,可是它所处的生存环境却十分恶劣,身处车流不息的马路中间,每天要接受很多车辆的碾压和车辆尾气的腐蚀。

Although the well cover is not impressive, its living environment is very bad. It is in the middle of the road with constant traffic flow, and it has to accept the rolling of many vehicles and the corrosion of vehicle exhaust every day.

3d捕鱼还有很多次雨水和污水的侵蚀,冬冷夏热的高温差,乃至还要防小偷。

There are many times of rain and sewage erosion, cold winter and hot summer high temperature difference, and even to prevent thieves.

那么井盖是什么材质制作的呢?

So what material is the manhole cover made of?

这种资料便是球墨铸铁,现在马路上大多数井盖都是使用的这种资料。(当然井盖还有水泥复合资料,再生树脂材质,聚合物基复合材质等等。)

This kind of material is nodular cast iron, which is used in most well covers on the road now. (of course, there are cement composite materials, recycled resin materials, polymer based composite materials and so on.)

QQ截图20170303165332.pngQQ截图20170303165340.png

球墨铸铁

Ductile iron

提到球墨铸铁很多小伙伴会比较陌生,但提到铸铁咱们就会比较熟悉了,球墨铸铁便是铸铁的一种。

It's strange to mention a lot of small partners of nodular cast iron, but we'll be familiar with it. Nodular cast iron is a kind of cast iron.

球墨铸铁是铁水在凝结过程中,内部元素构成形状为球状石墨的铸铁,它是一种高强度的铸铁资料。

Nodular cast iron is a kind of cast iron with nodular graphite in the form of internal elements during the solidification of molten iron。 It is a kind of high-strength cast iron material。

通过加热石墨资料后,就能成功的将铸铁的功能,进步到接近于钢的各项功能,所以也就有了以铁(球墨铸铁)带钢的说法。

3d捕鱼After heating the graphite data, the functions of cast iron can be successfully improved to be close to the functions of steel, so there is the saying of iron (nodular cast iron) strip。

通过选用合适的金属元素,将其组合在一起,这是保证资料具有杰出功能的基本条件,一切球墨铸铁的首要成分是碳,硅,锰,磷以及稀土等元素。

By selecting suitable metal elements and combining them together, this is the basic condition to ensure that the materials have outstanding functions. The primary components of all ductile iron are carbon, silicon, manganese, phosphorus and rare earth elements.

球墨铸铁开展

3d捕鱼Ductile iron development

铸铁是在1722年才被法国人研制出来,当时研制出来的是白心可锻铸铁,后来又相继研制出了如黑心可锻铸铁。

Cast iron was developed by the French in 1722. At that time, white heart malleable cast iron was developed. Later, black heart malleable cast iron was developed successively.

直到1947年,一位英国人发现在一种铸铁中有球状石墨存在,其实这便是一种球墨铸铁。

Until 1947, an Englishman found that there was spheroidal graphite in a kind of cast iron, in fact, it was a kind of spheroidal graphite cast iron.

后来又通过不断的完善,在铸铁中添加了一些稀土以及镁等成分,得到了真实意义上的球墨铸铁,从此也开端了大规模的出产和应用,而且成为应用广泛的铸铁资料。

Later, through continuous improvement, some rare earth and magnesium were added to the cast iron to get the true meaning of nodular cast iron. Since then, it has started large-scale production and application, and has become a widely used cast iron material.

咱们知道,中国是世界上前期开端金属锻炼的国度之一。

We know that China is one of the countries in the world that started metal training in the early days.

所以在国内古代锻炼遗址出土的一些铁中,检测发现就有少数放射状的球状石墨呈现。

Therefore, in some iron unearthed from ancient exercise sites in China, a small number of radial spherical graphite was found.

据考证这些铁呈现的时代在西汉时期,距今已有两千多年,这也再次证明中国古代就具有十分高的锻炼技能。

3d捕鱼According to the textual research, the age of these irons was more than 2000 years ago in the Western Han Dynasty, which once again proved that ancient China had very high exercise skills.

球墨铸铁的特色

3d捕鱼Features of nodular cast iron

球墨铸铁首要有着强度高,重量轻,耐性好,抗冲击现已耐高低温等优点,所以被广泛应用于一些机械中的要害零部件,如曲轴,阀门以及管道等。

Nodular cast iron has the advantages of high strength, light weight, good resistance to impact, high and low temperature resistance, etc., so it is widely used in some key parts of machinery, such as crankshaft, valves and pipes.

但球墨铸铁跟其它一切资料相同,也有着一些缺点,首要的便是铸造要求较高,容易构成产品缺点。

3d捕鱼But nodular cast iron is the same as all other materials, but also has some disadvantages. The first is that it has high casting requirements and is easy to form product defects.

例如说,某种元素含量多了,铸造出来的球墨铸铁内部结构就会发生变化,就会呈现孔洞,洼陷以及外表粗糙等缺点。

For example, if the content of some elements is too much, the internal structure of the cast ductile iron will change, and the defects such as holes, depressions and rough appearance will appear.

还会呈现杂质较多,产品没有光泽,裂纹变形等,这都需要在铸造过程中不断的进步和改善工艺来霸占这些缺点。

There will be more impurities, products without luster, crack deformation, etc。, which requires continuous improvement and improvement in the casting process to occupy these shortcomings。

球墨铸铁的分类

Classification of nodular cast iron

球墨铸铁的商标首要由其代号字母QT和拉伸强度,延伸率这三部分组成,而在国标中球墨铸铁有以下8个商标。

The trademark of nodular cast iron is mainly composed of its code letter QT, tensile strength and elongation. In the national standard, nodular cast iron has the following 8 trademarks.

奥贝球墨铸铁,商标有QT900-02,具有十分高的强度和耐磨功能,其综合机械功能都十分高,常被用来制作机车车轮这样要接受重载,摩擦和冲击的零部件。

Austempered ductile iron, whose trademark is qt900-02, has very high strength and wear-resistant function, and its comprehensive mechanical function is very high. It is often used to make locomotive wheels which are subject to heavy load, friction and impact.

铁素体球墨铸铁,商标有QT400-17,QT400-15,QT450-10,具有强度低,但耐性较高的特色,首要用于要接受很大冲击和振荡的零部件,例如一些车辆的底盘零件。

Ferritic nodular cast iron, with the trademark of qt400-17, QT400-15 and QT450-10, has the characteristics of low strength and high resistance. It is mainly used for parts that are subject to great impact and vibration, such as chassis parts of some vehicles.

3d捕鱼碳素体球墨铸铁,商标有QT500-07,QT600-03,具有强度高,耐性好的特色,首要用于制作一些车辆的零部件。

Carbon nodular cast iron, with the trademark of qt500-07 and qt600-03, has the characteristics of high strength and good resistance。 It is mainly used to make some vehicle parts。

珠光体球墨铸铁,商标有QT700-02,QT800-02,具有强度硬度高,有必定的耐性和较好的耐磨功能,所以常被用来制作一些曲轴和齿轮等,这类容易磨损的零部件。

Pearlitic nodular cast iron, with the trademarks of qt700-02 and qt800-02, has high strength and hardness, certain endurance and good wear-resistant function, so it is often used to make some crankshafts and gears, which are easy to wear parts.

球墨怎么构成的

How to make the ball ink

球墨铸铁的铸造过程是采用的球墨铸造工艺,球墨铸铁同样能够像钢相同,通过像热处理这样的工艺进步使用功能。

The casting process of nodular cast iron is adopting the nodular casting process。 The nodular cast iron can also be the same as steel, and its use function can be improved through processes such as heat treatment。

球墨铸铁在构成的过程中铁水内的石墨成球状,也正是由于石墨球化,才让球墨铸铁拥有诸多的优点。

3d捕鱼In the process of forming ductile iron, the graphite in the molten iron becomes a ball. It is precisely because of the spheroidization of graphite that ductile iron has many advantages.

3d捕鱼球状石墨在构成的过程中要通过两个阶段,首先是石墨成核,铁水在熔炼成液体的过程中,有很多非金属和一些杂质在游动过程中,相互磕碰,就会聚合在一起成为石墨球核。

There are two stages in the formation of spheroidal graphite, the first is graphite nucleation. In the process of molten iron melting into liquid, there are many nonmetals and some impurities in the swimming process, collide with each other, and they will aggregate together to become graphite spheroidal core.

在石墨成核以后,很多碳原子开端在石墨核上面堆积,跟着碳原子的堆积越来越多,会变得成为球状,这便是球状石墨的第二个生长过程。

After graphite nucleation, many carbon atoms begin to accumulate on the graphite core. With the accumulation of more and more carbon atoms, they will become spherical, which is the second growth process of spherical graphite.

所以,要想在铸造过程中取得球状石墨,石墨在生长过程的操控就十分重要。

Therefore, in order to obtain spheroidal graphite in the process of casting, it is very important to control the growth of graphite.

球墨铸铁作为一种具有诸多优点的资料,现在现已开展到了第二代球墨铸铁,在其间添加了更多的硅,乃至让硅的含量比碳还多。

As a kind of material with many advantages, nodular cast iron has now developed into the second generation of nodular cast iron, in which more silicon has been added, even more silicon than carbon.

这样的球墨铸铁就会具有更好的拉伸强度而且重量更轻,这与以前的球磨铸铁在进步抗拉强度后,其塑性必将下降有很大的改变。

Such nodular cast iron will have better tensile strength and lighter weight, which will greatly change the plasticity of the ball milled cast iron after the improvement of tensile strength.

中国作为铸造业大国,让资料强度增加而重量却变轻,这也将成为未来资料的开展方向,球墨铸铁通过不断的改善成分和功能,未来也将在更多的领域得到广泛应用。

3d捕鱼As a big country in foundry industry, China will increase the strength of data and lighten the weight, which will become the direction of future data development. Through continuous improvement of composition and function, ductile iron will be widely used in more fields in the future.


  • 版权所有:济南顺健金属制品有限公司 地址:山东省济南市天桥区金牛建材市场  
  • 电话:  手机号:18706412842 本网站由提供技术支持  流量统计:
二维码
济南万顺铸业有限公司主要为大家提供山东球墨铸铁井盖铸铁护栏落水斗给水管排水管暖气片等产品的批量制作和安装服务,欢迎大家前来选购!
彩票大赢家 亚博全站 五分时时彩 白小姐六肖选一肖中特 正片白小姐六选一肖 白小姐六肖选一肖中特 一肖中特免费资料公开选料 一肖中特免费资料公开选料 白小姐六选一 博天国际