为什么辊模拉丝设备不一样,拉丝效果会不一样？Why the roller mould wire drawing equipment are different and how come the eff

铜材料在外界温度下总是有一个残留的氧化膜，而这一氧化膜是当铜线进入热杆轧制阶段时，在高温的、连续铸造的铜杆上形成的。氧化膜具有一定的危害，因为它们会在拉丝过程中导致很多缺陷，如：使拉丝膜过度磨损、可焊性变差、搪瓷膜和裸导体之间的附着力变弱等。

Copper materials always have a residual oxide film at external temperatures, which is formed on the high-temperature, continuously cast copper rod when the copper wire enters the hot rod rolling stage. Oxide films have certain hazards because they can cause many defects during the drawing process, such as excessive wear of the drawing film, decreased weldability, and weakened adhesion between the enamel film and bare conductors.

拉线模是生产线材的重要工具，是实现正常的连续拉伸，保证拉伸制品质量的关键。要使拉线获得高质量的拉伸制品，不仅取决于原材料以及拉线模本身的材质，还取决于模子的孔型设计和使用时的其它配合条件。目前，随着高速拉丝机的广泛应用，拉线模的使用在拉丝过程中具有相当重要的作用。

Wire drawing die is an important tool for producing wire rods, which is the key to achieving normal continuous stretching and ensuring the quality of stretched products. To obtain high-quality stretched products for the wire, it not only depends on the raw materials and the material of the wire mold itself, but also on the hole design of the mold and other matching conditions during use. At present, with the widespread application of high-speed wire drawing machines, the use of wire drawing dies plays a significant role in the wire drawing process.

辊模是取代拉丝模的新一代模具，辊模是用由2～4个从动辊组成的拉拔模，常用结构是十字模，由一对垂直辊2和4及一对水平辊3和5组成，另一种结构是由一对水平或垂直的辊组成。

Roller die is a new generation of mold that replaces wire drawing die. Roller die is a drawing die composed of 2-4 driven rollers. The commonly used structure is a cross die, consisting of a pair of vertical rollers 2 and 4 and a pair of horizontal rollers 3 and 5. Another structure is composed of a pair of horizontal or vertical rollers.

对比拉丝模和辊模的使用寿命，同等情况下大约缩短60-80倍，由于不需要频繁更换拉丝模，大大减少停机时间，间接提高生产效率。采用辊模轧制方式产生变形所需能量减少，同等产量的能耗减少。

Comparing the service life of wire drawing dies and roller dies, under the same conditions, it can be shortened by approximately 60-80 times. As there is no need to frequently replace wire drawing dies, it greatly reduces downtime and indirectly improves production efficiency. The use of roll die rolling method reduces the energy required for deformation and energy consumption for the same output.

由于辊模轧制比拉制给予钢丝的张力减少，断线减少，频次对比大约平均降低7-10倍，接线时间减少。更换拉频次大大降低，一个更换期后，辊模比拉丝模长60-80倍。

Due to the reduced tension on the steel wire caused by roll die rolling compared to drawing, wire breakage is reduced, and the frequency is reduced by an average of 7-10 times, resulting in a decrease in wiring time. The replacement frequency is greatly reduced, and after one replacement period, the roller die is 60-80 times longer than the wire drawing die.