钻孔机械

旋转钻机是用切削式钻头破碎岩石的钻孔机械，也称为旋转切削式钻机。

Rotary drill is a kind of drilling machine shattering rocks by cutting drill bit , also known as rotary cutting drilling machine .

旋转钻机是使用切削式钻头破碎岩石的钻孔机械。它是煤炭、化工、建材及冶金辅助矿山使用的比较先进的钻孔设备。

Rotating drill is a kind of drilling machine which is used to break rock with cutting type drill , and it is more advanced drilling equipment that used in coal industry , chemical industry , building materials and metallurgy mine auxiliary .

钻孔机械选型建议为：钻孔深度不超过20m的浅层开挖爆破可选择麻花钻；

The drill machines are chosen as : blast-holes depth less than 2 m , the twist drill will be chosen for surface layer blasting ;

该技术适用于水深4~6m、无大型钻孔机械作业时水中人工挖孔桩施工。

This technology was also applicable to the construction of manual excavating pile hole in water 46 meters height without using large-scale machinery .

钻孔机械的选择是钻孔桩施工中的一大重要因素，对成孔速度和成孔质量都非常关键。

Selection of drilling machinery is a major factor in the Bored Pile Construction , which is critical for drilling speed and quality .

在钻孔机械上附加一测量钻孔钻进速度装置，通过在土岩爆破施工现场直接从爆破钻孔的钻进过程来实时获取炮孔不同部位的岩石性质。

Setting a measure device on the drilling machines , a new method of gaining the characters of rock and soil from the blasting drilling is gotten , which is economic and accurate and from which the characters of different parts of the blasting hole are got accurately .

高压水射流径向水平孔钻进技术是水平孔施工技术之一，它是在垂直瓦斯抽放或煤层气勘探钻孔布置机械或水力扩孔装置，对准选定的煤层部位进行扩孔。

As one of radial horizontal drilling techniques , high pressure water jet drilling technology is capable of using mechanical or water jet apparatus to make a cavity at the selected coal seam .

种高质量PCB的钻孔和各种机械部件的精确钻孔等其它精确钻孔的应用。

It will be widely use to broaching the high quality PCB board and other accurate mechanical broaching , and so on .

热力喷射钻孔燃烧器蒸汽机械喷油燃烧器

Steam-assisted pressure jet burner