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實踐表明，帶雙鍍槽的軸頭在使用過程中，鑲槽壁容易崩裂，目前常用易加工的帶平臺的袖頭代替雙因槽的抽頭。

直徑超過400mm的冷軋軋輥，在鍛造后，多半在中心饅一個670一250mm的通7L。這樣，一力面可以使軋輥經熱處理店的內應力分朽均勾；另一方面在軋輥表面淬火時，可對軋輥通水冷卻，提高淬火效果。

Practice shows that, with double bath head is in use, insert groove wall is easy to crack, at present common processing platform with the cuff instead of double slot for tap.

Cold roll diameter of more than 400mm, after forging, mostly in the 7L center. A 670 250mm. So, on one hand can make the roller stress heat treatment shop allocation hook are; on the other hand, the roll surface quenching, the water cooling roller, improve the quenching effect.

軋輥在軋機中的使用效果不但取決于軋輥材質及其冶金質量，還和使用條件、軋輥設計、操作維護有關。不同類型軋機的軋輥使用條件有很大差異，造成差異的因素有：軋機條件。如軋機類型、軋機和軋輥設計、孔型設計、水冷條件和軸承種類等。

The use effect of roll in the rolling mill not only depends on the material and metallurgical quality of the roll, but also is related to the conditi of use, the design of the roll and the operation and maintenance. The use conditi of the rolls for different types of rolling mills are very different. The factors that cause the difference are the rolling mill conditi. Such as rolling mill type, rolling mill and roll design, pass design, water cooling condition and bearing type and so on.

弄清軋輥的使用條件以及在同類型軋機中所用軋輥的失效方式，了解當前各種軋輥材質的性能和制造工藝，才能較正確地制定該軋機用輥的技術條件和選用合適而經濟的軋輥材質。

We must know clearly the condition of the roller and the failure way of the roll used in the same type of rolling mill, and understand the performance and manufacturing technology of all kinds of roller material at present, so that we can correctly formulate the technical conditi of the roller and choose the right and economical roller material.

在粗軋機架后，中型型材軋機有兩組連續的機架。連續軋機，根據孔型設計既可以水平布置，也可以立式布置。對于有平行緣的型鋼和槽鋼，還配有機架。

After the roughing mill, there are two sets of continuous rack in the medium section mill. The continuous rolling mill can be arranged horizontally or vertically according to the pass design. For steel and channel steel with parallel edges, universal frame is also available.