遼寧crane rail報(bào)價(jià)信息推薦

實(shí)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(gè)670一250mm的通7L。這樣，一力面可以使軋輥經(jīng)熱處理店的內(nèi)應(yīng)力分朽均勾；另一方面在軋輥表面淬火時(shí)，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.

弄清軋輥的使用條件以及在同類型軋機(jī)中所用軋輥的失效方式，了解當(dāng)前各種軋輥材質(zhì)的性能和制造工藝，才能較正確地制定該軋機(jī)用輥的技術(shù)條件和選用合適而經(jīng)濟(jì)的軋輥材質(zhì)。

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.

（1）堆焊前需先將軋輥輥身表面的疲勞層或缺陷，尤其是裂紋必須徹底清除；  

（2）在堆焊時(shí)，為了防止裂紋的產(chǎn)生，必須先加工軋輥輥身預(yù)熱，預(yù)熱溫度根據(jù)軋輥輥及堆焊材料而定。

(1) before welding, the fatigue layer or defect of the roller body surface must be first removed, especially the crack must be thoroughly removed.

(2) in the process of surfacing, in order to prevent cracks, the roller body must be pre heated, and the preheating temperature should be determined according to roll rolls and surfacing materials.