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液压凿岩机的发展,也带来了所用的钎杆和钎头的发展。液压凿岩传递的能量提高意味着沿钎杆传递到钎头的应力波更均匀。人们发现,这种均匀性提高了钎杆的寿命。此外,这种大的功率输出表示:制造钎杆的厂家已受到了为提高产品质量而承受增大的应力的压力。现代钎杆生产要经过诸如喷砂、渗碳等一系列的工艺处理以提高寿命。 MF杆。艾拉莫·科米塔(Airam Co-meta)是高级钎杆制造厂家。它已用MF杆替换了传统的接杆套。此种钎杆使用一种外/内螺纹式接头。这意味着接头长度缩短一半,能量传递效率提高和接卸钎杆简单化了。接杆套上能量的损失是由于钎杆和接杆套的横截面积的改变、接杆套表面摩擦以及钎杆内部摩擦等产生的部分冲击能反射而造成的。将接头的长度缩短一半,就会使反射的能量减少很多。由于接头表面积的减少,
The development of hydraulic rock drills has also brought about the development of the drill rods and bits used. The increased energy delivered by hydraulic rock drilling means that the stress wave transmitted along the drill rod to the bit is more uniform. It has been found that this uniformity increases the life of the drill rod. In addition, this large power output indicates that manufacturers of drill rods have been subjected to increased stress to improve product quality. Modern drill rod production to go through such as sandblasting, carburizing and a series of process to improve life expectancy. MF rod. Airam Co-meta is a premium drill rod manufacturer. It has replaced the traditional rod cover with the MF rod. This drill rod uses an external / internal threaded fitting. This means that the length of the joint has been reduced by half, the energy transfer efficiency has been improved, and the tap-rod has been simplified. The energy loss of the connecting rod sleeve is caused by the change of the cross-sectional area of the rod and rod sleeve, the surface friction of the rod sleeve and the partial impact caused by the internal friction of the rod. Shortening the length of the connector in half will reduce the amount of reflected energy. Due to the reduced surface area of the joint,