閉口式機架為一整體鑄件制成。三種類型的楔橫軋機相比，板式楔橫軋機模具制造較為簡單，模具的調(diào)整比較容易，因而軋件的精度較高，并且工藝可靠。這種機架形式在型鋼車間中小型軋機上應(yīng)用較多。其優(yōu)點是強度和剛度較高，輥跳值較小，產(chǎn)品精度較高。其主要缺點是制造比較困難，裝卸、換輥不方便。軋制壓力較大、對軋件尺寸要求比較嚴格時常采用閉口式機架。如初軋機、型鋼連軋機和型鋼成品軋機等。

The closed frame is made of a whole castings. This type of frame is used more in the small and medium mill in the steel workshop. Its advantages are that the strength and stiffness are high, the roll jump value is small and the precision of the product is high. Its main disadvantage is that it is difficult to manufacture, and it is inconvenient to load and load and change the roll. When the rolling pressure is larger and the requirements for the size of the rolled piece are strict, the closed frame is often used. Such as the early rolling mill, the type steel continuous rolling mill and the steel finished rolling mill, etc.

實現(xiàn)金屬軋制過程的設(shè)備。泛指完成軋材生產(chǎn)全過程的裝備，包括有主要設(shè)備、輔助設(shè)備、起重運輸設(shè)備和附屬設(shè)備等。但一般所說的軋機往往僅指主要設(shè)備。

A device for a metal rolling process. Generally refers to the equipment that completes the whole process of rolling material production, including main equipment, auxiliary equipment, lifting and transportation equipment and auxiliary equipment. Generally speaking, rolling mills usually refer to only the main equipments.

軋制時毛坯的位置固定，因此不需設(shè)置側(cè)向支撐毛坯的導(dǎo)向尺?？傊m用于軋制復(fù)雜外形結(jié)構(gòu)，精度要求高，零件品種變換很多的情況。但其行程大小受到限制，所以，變形程度也受到影響，同時，板式軋機有空行程，故影響到生產(chǎn)率和變形程度都不能很大。

The of the blank is fixed during rolling, so there is no need to set the guide bar of the side supporting blank. In short, it is suitable for rolling complex shape structure with high accuracy and many varieties of parts. But the stroke size is limited, so the degree of deformation is also affected. At the same time, the plate mill has an empty travel, so the productivity and deformation can not be very large.

四棍軋機的工作輥直徑較小，傳遞軋制力矩，軋延壓力由直徑較大的支承輥承受。這類設(shè)備的主要優(yōu)點是相對剛度較大，壓下量大、軋延力小，可軋制較薄的板材，也包括有可逆和連軋兩種。

The working roll diameter of the four bar mill is small, and the rolling torque is transferred. The rolling pressure is borne by the backup roller with larger diameter. The main advantages of this type of equipment are relatively large stiffness, large reduction, low rolling force, thin rolled sheets, and reversible and continuous rolling two.