Factory Quality Rebar With Threads
Pros:
1.Excellent material:Right-hand anchor is mainly made of high-quality steel, which has good tensile strength and corrosion resistance.
2. Simple structure: the structure of right-hand anchor is relatively simple, mainly composed of anchor rods, anchor casing, anchor head and anchor anchoring material.
3. Convenient installation: the installation process of right-hand anchor is relatively simple, and the installation and fixing can be completed quickly.
Product Description:
Steel anchor rods are made of steel with 20MnSi, which is hot-drawn and has certain material requirements and mechanical property indexes. At the same time, the straightness and thread bearing capacity of the anchor rods have strict requirements to ensure the reliability of installation and use.
The nuts are used in conjunction with right-handed equal-strength resin anchors with cylindrical columns and hexagonal/square/runway-shaped columns, which are capable of providing suitable threaded connections and force support. These nuts are made by molding process, which has the advantages of high strength, beautiful appearance and anti-corrosion, suitable for use in specific environments and projects.
Technical Parameters.
material | 20MnSi | ||||
Strength specifications | yield strength (MPa) | tensile strength (MPa) | tensile strength (%) | breaking load (KN/M) | Theoretical quality (KG/M)
|
φ16 | ≧335 | ≧490 | ≧16 | ≧100 | 1.6
|
φ18 | ≧335 | ≧490 | ≧16 | ≧126 | 2.0
|
Φ20 | ≧335 | ≧490 | ≧16 | ≧156 | 2.5
|
Φ22 | ≧335 | ≧490 | ≧16 | ≧189 | 3.0 |
How it works:
Equal-strength threaded steel type resin anchor is used to realize the supporting effect by using the metal rod body together with the matching resin anchoring agent. In the installation process, according to the design requirements, the rod body is inserted into the holes pre-injected with anchoring agent, and after curing by chemical reaction, the rod body is firmly bonded with the coal rock to form a high-strength support structure. By adding protection net and bearing tray at the threaded end and tightening with nuts, a solid support effect can be achieved.
This threaded steel resin anchor support system has many advantages, including effective control of roof stabilization, adaptation to rock movement, reduction of off-layer phenomenon, and solving the collapse problem. The multiple support forms and structures of the prestressed support system allow for mechanical installation and significantly improve the safety and reliability of the support.
Installation:
1. Select suitable metal rods and anchors according to design requirements.
2. Drill holes in the calibrated anchoring substrate to ensure that the diameter and depth of the holes match the specifications of the selected anchors.
3. After drilling, use pressurized air or water to remove floating dust in the hole and load anchoring agent.
4. Use mixing equipment to drive the metal rod body, while mixing and advancing to the bottom of the hole, the mixing time should be less than the anchor fixing agent gel time.
5. Avoid moving the rod body during the waiting time to ensure that the anchoring agent is fully cured.
6. After the specified waiting time, the pallet can be installed and the nut can be tightened, and the tensile strength test can be carried out after the bearing time is reached.
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