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毕业季,职业生涯发展的起点,乐从钢铁行业冷热轧板酸洗钢板

2022-07-15 15:34:46 来源:佛山市万庆物资有限公司 http://www.wanqingwz.com/ 阅读

穿上了学士服拍了毕业照从此是社会人应届毕业生选择合适的职业发展方向尤为重要。

Put on the bachelor's clothes, took the graduation photos, from now on is a social people, fresh graduates to choose the right career development direction is particularly important.

乐从拥有举世闻名的“家具、钢材和塑料”三大专业市场乐从全国最大钢铁贸易集散地,拥有钢贸公司1190多家,乐从钢材市场占地面积180多万平方米,年促成钢材贸易总量超过1000万吨,销售网络辐射全国各地,以规模大、品种全、客户广和服务好而闻名于世。

Lecong has a world-famous "furniture, steel and plastic" three professional markets, Lecong is the country's largest steel trade distribution center, with more than 1190 steel trade company, Lecong steel market covers an area of more than 180 square meters, contributed to the steel trade total of more than 10 million tons, sales network radiation all over the country, with large scale, varieties, customers and good service.

对于初步入社会的应届生,意向从业钢铁行业的,可以先从常见常用的钢材了解,佛山市万庆物资有限公司与您分享一下:

For the initial fresh graduates into the society, the intention to work in the steel industry, you can first understand from the common and commonly used steel, Foshan Wanqing Materials Co., Ltd. to share with you:

热轧是以板坯(主要为连铸坯)为原料,在高温下对钢锭或钢坯进行轧制,一般是加热到1100-1250摄氏度,终止温度是800-900,最后在空气中冷却。

Hot rolling is the slab (mainly continuous casting billet) as raw material, on the ingot or billet rolling at high temperature, generally heated to 1100-1250 degrees Celsius, the termination temperature is 800-900, and finally cooled in the air.

冷轧则是指在常温下对热轧板进行轧制,虽然过程中也会让钢板升温,但主要还是再结晶温度(在1小时保温时间内能完成再结晶过程的最低温度,称为再结晶温度。)以下进行轧制。

Cold rolling refers to the rolling of hot rolled plates at room temperature. Although the steel plate will also be heated up in the process, it is mainly the recrystallization temperature (the lowest temperature of the recrystallization process can be completed within 1 hour of insulation time, which is called the recrystallization temperature.) Rolling is performed as described below.

酸洗板是以优质热轧薄板为原料,经酸洗机组去除氧化层,切边,精整后,表面质量和使用要求(主要是冷弯成型或冲压性能)介于热轧板和冷轧板之间的中间产品,是部分热轧板和冷轧板理想的替代产品。

Aciding plate is an intermediate product with high quality hot rolled sheet as raw material, removing the oxide layer, cutting the edge, and finishing the surface quality and use requirements (mainly cold bending forming or stamping performance) between the hot rolled plate and the cold rolled plate. It is an ideal alternative product for part of the hot rolled plate and cold rolled plate.

各自的特点:

Their own characteristics:

热轧可以破坏钢锭的铸造组织,细化钢材的晶粒,并消除显微组织的缺陷,从而使钢材组织密实,力学性能得到改善。这种改善主要体现在沿轧制方向上,从而使钢材在一定程度上不再是各向同性体;浇注时形成的气泡、裂纹和疏松,也可在高温和压力作用下被焊合。

Hot rolling can destroy the casting tissue of steel ingot, refine the grain of steel, and eliminate the defects of microtissue, so that the steel tissue is dense and the mechanical properties are improved. This improvement is mainly reflected in the rolling direction, so that the steel is no longer isotropic; the bubbles, cracks and loose air formed during pouring, can also be welded under high temperature and pressure.

经过热轧之后,热轧的钢材产品,对于厚度和边宽这方面不好控制。我们熟知热胀冷缩,由于开始的时候热轧出来即使是长度、厚度都达标,最后冷却后还是会出现一定的负差,这种负差边宽越宽,厚度越厚表现的越明显。所以对于大号的钢材,对于钢材的边宽、厚度、长度,角度,以及边线都没法要求太精确。

After hot rolling, hot rolled steel products, for the thickness and edge width of this aspect is not easy to control. We are familiar with thermal expansion and cold contraction, because at the beginning of the hot rolled out even if the length and thickness of the standard, after the final cooling, there will be a certain negative difference, the wider the negative difference edge width, the thicker the thickness, the more obvious the performance. So for the large steel, for the edge width, thickness, length, Angle, and the edge of the steel line can not be required for too accurate.

冷轧由于连续冷变形引起的冷硬化使轧硬卷的强度、硬度上升、韧塑指标下降,没有经过退火处理,其硬度很高(HRB大于90),机械加工性能极差,只能进行简单的有方向性的小于90度的折弯加工(垂直于卷取方向)所以必须经过退火才能恢复其机械性能

Cold rolling due to continuous cold deformation of cold rolling hardening makes the rolling roll strength, hardness rise, toughness index drop, without annealing treatment, its hardness is very high (HRB greater than 90), very poor machining performance, can only be simple directional less than 90 degrees of bending processing (perpendicular to the roll direction) so must pass annealing to restore its mechanical properties.

在冷轧过程中必须使用冷轧油,使用冷轧油的好处是:1、有效降低磨擦系数,提供相应的轧制力,轧制能耗低,获得满意的轧制参数;2、使表面光亮度高、轧延厚度均匀;3、冷却效果好,能迅速带走轧制热,保护轧辊及轧件。退火性能良好,不会产生油烧现象;4、有短期的防锈性能,可提供轧件临时防锈保护;

In the cold rolling process must use cold rolling oil, the advantages of using cold rolling oil are: 1, effectively reduce the friction coefficient, provide the corresponding rolling force, low rolling energy consumption, obtain satisfactory rolling parameters; 2, make the surface brightness is high, uniform rolling thickness; 3, good cooling effect, can quickly take away the rolling heat, protect the roll and rolling parts. Annealing performance is good, will not produce oil burning phenomenon; 4, have a short-term rust prevention performance, can provide temporary rust prevention protection of rolling parts;

酸洗板是热轧板和冷轧板之间的中间产品,用盐酸将热轧钢板上的氧化铁皮清除后得到漂亮、光滑的表面,产品包括低中、高强度级别的冲压用钢、汽车结构用钢等,主要以钢卷形式交货。

Acid washing plate is an intermediate product between hot rolled plate and cold rolled plate. The iron oxide skin on hot rolled steel plate removes a beautiful and smooth surface. The products include low medium and high strength steel for stamping, steel for automobile structure, etc., mainly delivered in the form of steel coil.

与热轧板相比,酸洗板的优势主要在于:

Compared with hot rolled plates, the advantages of pickling plates mainly are:

1、表面质量好,由于热轧酸洗板去除了表面氧化铁皮,提高了钢材的表面质量,便于焊接、涂油和上漆。

1、The surface quality is good, because of the hot rolled pickling plate to remove the surface of iron oxide skin, improve the surface quality of steel, easy welding, oil and paint.

2、尺寸精度高,平整后,可使板型发生一定变化,从而减少不平度的偏差。

2、High size accuracy, after leveling, can make the plate type has a certain change, so as to reduce the deviation of Pingdu.

3、提高了表面光洁度,增强了外观效果。

3、Improve the surface finish, enhance the appearance effect.

4、能减少用户分散酸洗造成的环境污染。

4、It can reduce the environmental pollution caused by scattered acid washing.

与冷轧板相比,酸洗板的优势在于在保证表面质量使用要求的前提下,使用户有效的降低采购成本。

Compared with cold-rolled plate, the advantage of pickling plate is that users can effectively reduce the procurement cost on the premise of ensuring the surface quality and use requirements.

简单点儿来说,冷轧,是在热轧板卷的基础上加工轧制出来的,是热轧---酸洗--磷化--皂化--冷轧这样的加工过程。

To put it simply, cold rolling, is processed on the basis of hot rolled coil rolling out, is hot rolled- - -pickling- -phosphorus- -saponification- -cold rolling processing process.

热轧酸洗板的主要工序有激光焊接、位伸矫直、紊流酸洗、在线平整、切边、在线涂油等。

The main processes of hot-rolled pickling plate are laser welding, position extension and straightening, turbulent pickling, online leveling, edge cutting, online oil coating and so on.

冷轧钢板具有更好的强度,热轧钢板具有更好的延性。热轧钢板是在高温下轧制而成,冷轧是在常温下轧制。酸洗板是介于冷轧板和热轧板之间的性能价格比比较高的一种产品,目前市场需求主要集中在汽车行业、压缩机行业、机械制造行业、零配加工行业、风机行业、摩托车行业、钢家具、五金配件、电柜货架及各种形状的冲压件等。

Cold rolled steel plate has better strength, and hot rolled steel plate has better ductility. Hot rolled steel plate is rolled at high temperature, and cold rolling is rolled at room temperature. Acid washing plate is between cold rolled plate and hot rolled plate performance price ratio is higher than a product, the current market demand is mainly concentrated in the automobile industry, compressor industry, machinery manufacturing industry, zero with processing industry, fan industry, motorcycle industry, steel furniture, hardware accessories, electric cabinet shelves and various shapes of stamping parts, etc.

未来前景是我们在选择行业时应该考虑到的问题,行业的未来其实也就是你的未来,因此谨慎选择一个未来前景良好的行业,也是对你自己人生的负责。

The future prospect is what we should consider when choosing the industry. The future of the industry is actually your future. Therefore, carefully choosing an industry with a good future prospect is also responsible for your own life.



标签:   冷板 冷轧钢 汽车钢 酸洗卷板

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