Perforated Metal Sheet For Mining
Product Advantages:
1, The flexural section modulus of M steel strip is 37 times higher than that of conventional steel, which means that the product has better flexural properties and is more difficult to deform. 2, The steel degree is about 70 times higher, which indicates that the product has higher hardness and can better resist the action of external forces. 3, M steel strip has a hardening effect during the cold rolling process, which makes the tensile strength of the product increase by 12% to 15%, indicating that the product has higher tensile strength and is less likely to break.
Product Description:
M steel belt is a new type of mine support material, also called top plate steel belt, M steel belt is made of strip steel with thickness of 2-5MM width of 140-220MM, cold bending into M type, and then processed in the center of the steel belt with anchor hole. At present, the domestic group of companies in the production of mines and, M steel belt mining depth has reached 500-1000 meters, ground stress, surrounding rock forces and deformation of complexity and diversity, a single rod support has been unable to meet the broken roof, composite roof roof roof pressure of the roadway support requirements, and with anchor rods and W / M type steel belt together with the composition of the anchor beam system, you can effectively control the roof, but also should be in the large fracture of the roadway support. M steel belt can save a lot of material cost compared with the commonly used 11# mining I-beam frame.
Specifications and parameters：
model number | Spread (mm) | Thicknesses (mm) | Molding height (mm) | diameter of hole(mm) | Lengths (mm)
|
md-130 | 150 | 2/2.5/3/4/5 | 32 | 30*60 | 500-6500 |
md-145 | 165 | 2/2.5/3/4/5 | 32 | 30*60 | 500-6500 |
md-150 | 170 | 2/2.5/3/4/5 | 32 | 30*60 | 500-6500
|
md-160 | 180 | 2/2.5/3/4/5 | 32 | 30*60 | 500-6500 |
Installation and use
1. After drilling holes in the perimeter rock, install the rods and pre-assemble the M-type steel straps with the rods according to the design requirements.
2. Use the evaluation rig to install the openings, and after installing the rods, back-tighten the pallets to the openings.
3. Installation is carried out sequentially until the installation is completed.
M-type steel strip is a new type of mountain support material, using the thickness of 3-5mm, the width of 180-320mm coil steel plate, after cold forming and processing and become. m-type steel strip than the same flat steel strip with bending cross-section modulus increased by 37 times, the stiffness increased by 70 times or so, tensile strength increased by 12%-15% and other advantages and characteristics.
Submitted successfully
We will contact you as soon as possible