Опубликовано 12.06.2017 по предмету Английский язык от Гость >> <<

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Hot Rolling
I. The rolling process in a modern steel plant comprises two stages: 1) rolling ingots into semifinished products and 2) rolling the semifinished products into the finished ones. Ingots are usually of a square cross-section with rounded corners, and are first rolled into blooms or billets. These blooms or billets are simply square or rectangular bars of steel which are to be reheated and rolled into the final shapes.
Evgenimartynov
2 недели назад
A bloom differs from a billet only in size. It is larger and is sometimes reheated and rolled into billets. Slabs are merely thick plates to be reheated and rolled into thinner plates. Blooms, slabs and billets are called the semifinished products as they are subjected to some additional finishing operations. The term “finished” product is usually applied to rails, plates, rounds and different shapes.
1) special shapes or sections;
2) plate and sheet steel;
3) tubes;
4) special types of rolled products.
Evgenimartynov
2 недели назад
Steel sections are widely used in many branches of the industry for the manufacture of machines, steel structures and so on. Plate and sheet steela are classified according to their thickness. All products over 4 mm thick are called plate steel, comparatively wide products less than 4 mm in thickness are called sheet steel. Special types of rolled products include shapes for automobile and tractor industries, railway industry, for building construction.
Evgenimartynov
2 недели назад
III. The main requirements in rolling the finished products are: 1) to obtain a finished product of high quality not only in physical and mechanical properties, but to obtain a good surface as well; 2) to obtain a finished product of the desired size and shape at the highest rate of production and the lowest cost.

Ответ оставил Гость

Hot Rolling
I. Therolling process in a modern steel plant comprises two stages: 1) rolling ingotsinto semifinished products and 2) rolling the semifinished products into thefinished ones. Ingots are usually of a square cross-section with roundedcorners, and are first rolledinto blooms or billets. These blooms or billets are simply square orrectangular bars of steel which are to be reheated and rolledinto the final shapes. (Present IndefinitePassive voice )

A bloom differs from a billet only in size. It islarger and is sometimes reheated and rolled into billets. (Present Indefinite Passive voice )
Slabs aremerely thick plates to be reheated and rolled into thinnerplates. (Present Indefinite Passive voice )
 Blooms, slabs and billets are calledthe semifinished products as they are subjected to some additionalfinishing operations. (Present IndefinitePassive voice )
The term“finished” product is usually applied to rails, plates, roundsand different shapes. (Present IndefinitePassive voice )



1)special shapes or sections;
2) plateand sheet steel;
3) tubes;
4)special types of rolled products. 

Steel sections are widely used inmany branches of the industry for the manufacture of machines, steel structuresand so on. (Present Indefinite Passive voice )
 Plate and sheet steela are classifiedaccording to their thickness. (Present IndefinitePassive voice )
Allproducts over 4 mm thick are called plate steel, comparatively wideproducts less than 4 mm in thickness are called sheet steel. (Present Indefinite Passive voice )
Specialtypes of rolled products include shapes for automobile and tractor industries,railway industry, for building construction. 


III. Themain requirements in rolling the finished products are: 1) to obtain a finishedproduct of high quality not only in physical and mechanical properties, but toobtain a good surface as well; 2) to obtain a finished product of the desiredsize and shape at the highest rate of production and the lowest cost.