| 废钢的分类 |
| 添加时间：2017/11/2 14:41:08 浏览次数： |
| 大体分类 General classification 废钢铁按其产生的来源可以划分为两大类： According to the sources of scrap iron and steel can be divided into two categories: 是社会上各行各业因报废折旧产生的废钢铁(简称折旧性废钢铁)。另一类是在各种生产过程中产生的废钢铁(简称生产性废钢铁)。 Scrap iron and steel all walks of life caused by the depreciation (the depreciation of scrap iron and steel scrap). The other is scrap iron and steel produced in various production process (the production of scrap iron and steel). 细分的话可分为七大类： Subdivided words can be divided into seven categories: 1 One 生产性废钢铁 Productive scrap iron and steel 生产性废钢铁一部分是各个使用钢材制造终端使用商品的边角余料；这一部分通过市场交易回到钢铁企业进行再次冶炼。另一部分是各钢铁企业自产的返回废钢铁，是企业内部各个生产单元诸如，车间、分厂在生产过程中下来的边角余料例如:切头、切尾、铸余、废品、试样、钢屑、下脚料等。 A part of productive scrap iron and steel is part of the leftover material used in the terminal of steel manufacture, and this part is returned to the iron and steel enterprise for re smelting through market transaction. The other part is the iron and steel enterprises produced a return scrap steel, is the enterprise internal various production units such as workshop, factory in the production process from leftover materials such as cutting head, cutting tail, casting residual scrap, steel scrap, samples, and waste etc.. 生产性废钢铁的特点是：质量很好，钢水收得率高，钢种明确，化学成分清楚。管理好这部分废钢铁对于降低生产成本有着重要愈义。 The characteristics of productive scrap steel are: good quality, high yield of molten steel, clear steel grade and clear chemical composition. Manage this part of scrap iron and steel for reducing production cost has important meanings. 2 Two 农业废钢铁 Agricultural waste iron and steel 农业废钢铁来源于损坏的各种农业设施如闸、坝、桥、具、工器具等，由于我国农业现代化起步较晚，尚不发达，少。农业废钢中废铸铁、工具钢较多。 Agricultural waste iron and steel came from various damaged agricultural facilities, such as gates, dams, bridges, tools, equipment and so on. Because of the late start of agricultural modernization in China, it is still underdeveloped and less. Scrap iron, scrap steel more agricultural tools. 3 Three 基本建设业废钢铁 Scrap iron and steel in capital construction 来自于基本建设业的废钢铁数量较大，特别是近几年，随着铁路建设、公路建设、市政建设、工业与民用建设的发展，这方面的废钢铁越来越多，预计在未来的20年内将会保持着较高的产出量。 From the basic construction of the large quantity of scrap iron and steel, especially in recent years, with the railway construction, highway construction, municipal construction, industrial development and civil construction, iron and steel scrap more and more in this area, is expected in the next 20 years will maintain a high output. 来自这方面的废钢铁质量较好，品种有拆下来的各种型号的钢筋、角、槽、板，工程用角、槽、板的下脚料，淘汰报废的建筑设备和工器具。近几年来随着拆迁量的加大，各种建筑物拆下来的废钢铁越来越多。这部分废钢绝大部分是普通碳素钢。 The quality of scrap iron and steel from this aspect is good. All kinds of steel bars, horns, troughs and slabs are dismantled, and the leftover parts of the engineering, such as angle, groove and plate, are eliminated, and the discarded construction equipment and tools are eliminated. In recent years, with the increasing amount of demolition, scrap iron and steel more and more buildings removed. This is the most common carbon steel scrap. 4 Four 铁路废钢铁 Railway scrap steel 目前我国的铁路建设发展很快，随着高铁、动车组、铁路提速的大发展，原有的铁路设施与之越来越不相适应。因此，淘汰报废了许许多多的铁路设施，如机车、车厢、道轨等。 At present, China's railway construction is developing rapidly, with the rapid development of high-speed rail, EMU, railway speed up, the original railway facilities and more and more out of line with. Therefore, elimination of many facilities such as railway, locomotive, rail cars, etc.. 这部分废钢铁质量优越，绝大部分是重型料。且化学成分清晰，钢水回收率高。这部分废钢铁是各钢铁企业的抢手货。随着铁路事业的发展，这方面的废钢铁会越来越多，应当引起废钢铁经营者和使用者的关注。来自铁路的废钢有碳素钢和合金钢。 This part of the scrap quality is superior, is the most severe material. The chemical composition of molten steel and clear, high recovery rate. This part is popular in the iron and steel scrap iron and steel enterprises. With the development of railway industry, more and more scrap iron and steel will be produced in this respect, which should arouse the attention of operators and users of scrap iron and steel. From the railway scrap of carbon steel and alloy steel. 5 Five 矿山废钢铁 Mine waste iron and steel 我国矿产资源丰富，特别是煤的产量居世界第一，煤的贮存量位居世界第三，产煤的历史较长，因此，这方面淘汰下来的废钢铁很多。煤矿是高风险行业，设备淘汰更新较快，同样也是废钢铁产生较多的地方。例如，各种液压支架、巷道支架、运输车辆，各种采掘机械工器具等。这类废钢铁也是优质废钢铁。 China is rich in mineral resources, especially the output of coal ranks first in the world. The storage of coal ranks the third in the world, and the history of coal production is long. Therefore, a lot of scrap iron and steel have been eliminated in this respect. Coal mine is a high-risk industry, the equipment is eliminated and updated faster, but also the waste iron and steel production more places. For example, all kinds of hydraulic support, roadway support, transport vehicles, all kinds of mining machinery equipment etc.. This kind of scrap steel is also high-quality scrap iron and steel. 矿山废钢的特点是重型料多、合金钢多。 The characteristics of mine is heavy metal scrap, alloy steel. 6 Six 民用废钢铁 Civilian scrap steel 民用废钢铁在整个废钢铁市场中占有相当大的比重。但是，质量参差不齐，绝大部分是轻薄料和小型料，易氧化生锈，钢水回收率较低。例如，家电的外皮、钢铁制桌椅家具、办公家具、灶具、厨具、上下水管道、钢制门窗、脚踏工具、健身器材、饮料容器。要较好地回收使用民用废钢铁就必须对民用废钢铁进行加工。例如，使用打包机、剪切机、破碎机，以增加堆密度。另外，尽快使用以减少氧化，变不利为有利。民用废钢要注意各种含有锌、锡的废钢，如易拉罐、罐头盒、各种筒体。 Domestic scrap steel occupies a large proportion in the whole iron and steel scrap market. However, the quality is uneven, most of them are lightweight materials and small materials, easy to oxidation and rust, low recovery rate of molten steel. For example, the skin of appliances, steel desks and chairs, furniture, office furniture, cooking utensils, kitchen utensils, plumbing, steel doors and windows, foot tools, fitness equipment, beverage containers. A good way to recycling of scrap iron and steel must be civil to carry on the processing of Civilian scrap steel. For example, the use of packing machine, shearing machine, crushing machine, in order to increase the bulk density. In addition, as soon as possible to reduce oxidation, as a negative change. Civilian scrap should pay attention to all kinds of scrap containing zinc and tin, such as cans, tins and various kinds of cylinders. |
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