【廣告】
軋輥產(chǎn)生彈性壓扁時(shí)可能軋制的板厚。Therollbodyofastriprollingmilliscylindrical,andtherollbodyofthehotdryplateisslightlyconcave。在一定軋機(jī)上軋制一定的產(chǎn)品時(shí),隨著板帶的逐漸變薄,壓下越來(lái)越困難。當(dāng)板帶薄至某一限度后,不管如何旋緊壓下螺絲或加大液壓壓下的壓力,不管反復(fù)軋制多少道,由于軋輥產(chǎn)生彈性壓扁而不可能再使產(chǎn)品變薄。這一極限厚度稱(chēng)為可軋厚度。
The smallest plate thickness may be rolled when the roll produces elastic squash. When a certain product is rolled on a certain rolling mill, with the gradual thinning of the strip, it is becoming more and more difficult to press down. When the strip is thin to a certain limit, no matter how to tighten down the screw or increase the pressure of hydraulic pressure, no matter how many rolls are repeatedly rolled, it is for the product to become thin due to the elastic flattening of the roll. This limit thickness is called the minimum rolling thickness.
冷軋板帶軋輥的輥身呈微凸,當(dāng)它受力彎曲時(shí)可保證良好扳形;型鋼軋機(jī)軋輥的輥身上有軋槽,根據(jù)型鋼軋制工藝要求,安排孔型。鋼管軋制中采用斜軋?jiān)碥堉频能堓佊袌A錐形、腰鼓形或盤(pán)形。
The roll body of the cold rolled strip roller is slightly convex. When it is bent by force, it can ensure good shape. There are grooves on the roller body of the section mill roll, and the pass is arranged according to the rolling requirements of section steel. The rollers of skew rolling rolling rolling principle of conical drum or disc.
不同類(lèi)型的軋機(jī)以及同類(lèi)型而使用條件不同的軋機(jī),對(duì)所用的軋輥性能要求不盡雷同,如方坯和板坯初軋機(jī)軋輥要具有好的扭轉(zhuǎn)和彎曲強(qiáng)度、韌性、咬入性、抗熱裂性和熱沖擊性以及耐磨性;而熱帶精軋機(jī)架要求軋輥輥面的高硬度、抗壓痕、耐磨、抗剝落和耐熱裂等性能。19世紀(jì)下半葉歐洲煉鋼技術(shù)的進(jìn)步要求軋制更大噸位的鋼錠,無(wú)論是灰鑄鐵或冷硬鑄鐵軋輥的強(qiáng)度均已不能滿(mǎn)足要求。
Different types of rolling mill and the same type and the use of different conditi on properties of roll mill, requirements for not identical, such as billet and slab mill roll with good torsional and bending strength, toughness, bite, thermal cracking resistance and thermal shock resistance and abrasion resistance; tropical finishing stand requirements the roller surface hardness, wear resistance, spalling resistance, indentation resistance and thermal cracking performance.