右旋螺纹锚杆

时间：2015-09-25 16:13:53      点击：   4588

1. 简介

    右旋纹锚杆，学名等强螺纹钢式树脂锚杆金属杆体，是一种经特殊加工工艺制作的锚杆，它的螺纹段强度大于杆体的强度，螺纹段抗弯抗剪性能良好，是井巷高强度支护的新型锚杆。该锚杆强度高，结构合理，顶紧力大，能够自动调整受力方向，增大对岩石的约束力，能实现机械化快速安装。可端锚、加长锚和全锚，主要用于高地压矿井大变形巷道的高强度支护，主要应用领域为煤矿巷道支护，同时也可用于铁路、水电等各类工程的高强度、永久性巷道支护。螺纹锚杆和树脂锚固剂配套使用时也称为“树脂锚杆”。

2. 抗拉强度：不小于455 Mpa
3. 规格
  （1）右旋直径（毫米）：Φ18，Φ20，Φ22（±0.5）；

  （2）长度（毫米）：1000～3000（±3）；

  （3）材质：MG335Y。

4.结构：杆体、托盘、螺母、球形垫、垫片。

1. Brief Introduction
  Dextral thread bolt, scientifically called equal strong thread steel type resin bolt metal rod body, specially made by processing technique, is the new type bolt for high-strength tunnel support, whose strength of thread is greater than the rod body's and is good in anti-kinking proformance. Dextral thread bolt is high in strength, proper in structure, great in roof-tighten force, automatic adjustment of stress direction, good in increasement of restraint to rocks and fast in mechanical application. The bolt, containing end bolt, strengthen bolt and whole bolt, is mainly used in the high-strength support in high ground pressure mine and large deformation mine, and is mainly applied in mine support. And it also can be used in high strength, permanent support such constructions as railway, hydropower etc. Thread bolt and resin bolt used in match are also called "resin bolt".
2. Anti-pulling strength: no less than 455Mpa.
3. Size:
  (1) Dextral diameter(mm): Φ18，Φ20，Φ22(±0.5)
  (2) Length (mm): 1000-3000(±3)
  (3) Material: MG335Y
4. Structure: body rod, plate, nut, ball-shaped pad, gasket.