Introduction to the mining W steel belt, the technical characteristics of the mining W steel belt

W-shaped steel belt, also called roof steel belt, is made of high-strength alloy plate cold pressing, W steel belt and various anchors are combined together to form the integrity of the anchor, W steel belt is the best choice for weak rock and coal roof control. Characteristics of W steel belt, W steel belt is widely used in underground roadway working face cutting eye, chamber and other fields of roadway support, which has a better effect on dealing with unstable surrounding rock.

W steel belt is a new type of mine support material, the product can be combined with a variety of anchors to organize a combination of bolt support, through which it can connect a number of scattered bolts to form an overall bearing structure, significantly improve the overall effect of the bolt, in the incomplete roof rock formation, the treatment of unstable surrounding rock effect is good.

W steel strip product features.

1.The model can be selected according to different geological conditions and operating environment;

2.The modulus of the bending section is increased by 37 times, and the modulus of the lower section is about the times of the modulus of the upper section, so when installing, the bolt drilling rig is used to tighten it upward;

3.Compared with other types of steel belts, W steel belts are less likely to tear, and the stiffness is large, which is about 70 times higher;

4.The hardening effect in the cold rolling process improves the tensile strength by 12%-15%;

5.The cross-section utilization rate is high, the material is saved, and the price is low.

W steel belt four characteristics.

1. The raw material is made of strong alloy strip steel; It is turned into W-shaped strip steel by cold pressing, truncated according to the length requirements, and then punched;

2. It has higher rigidity and strength;

3. The modulus of the bending section of W steel belt is increased by 54 times;

4. The hardening effect of W steel belt in the cold pressing process can improve the tensile strength 28-46.

W steel strip performance specifications.

Commonly used widths are: shenhua22180mm, 200mm, 220mm, 250mm, 280mm, 300mm

The commonly used thickness is: ,, and the commonly used hole diameter is: 40mm*60mm 30mm*70mm.

W steel belt introduction.

W steel belt is a new type of mine support material, the product can be combined with a variety of anchors to organize a combination of bolt support, through which it can connect a number of scattered bolts to form an overall bearing structure, significantly improve the overall effect of bolts, in the incomplete roof rock formation, the treatment of unstable surrounding rock effect is good.

W steel strip product features.

1.The model can be selected according to different geological conditions and operating environment;

2.The modulus of the bending section is increased by 37 times, and the modulus of the lower section is about the times of the modulus of the upper section, so when installing, the bolt drilling rig is used to tighten it upward;

3.Compared with other orange steel belts, W steel belts are less likely to tear, and the stiffness is larger, which is about 70 times higher;

4.The hardening effect in the cold rolling process improves the tensile strength by 12%-15%;

5.The cross-section is sharp and the surplus rate is high, saving the material and the price is low.

W steel belt four characteristics.

1. The raw material is made of strong alloy strip steel; It is turned into W-shaped strip steel by cold pressing, truncated according to the length requirements, and then punched;

2. It has higher rigidity and strength;

3. The modulus of the bending section of W steel belt is increased by 54 times;

4. The hardening effect of W steel belt in the cold pressing process can improve the tensile strength 28-46.

W steel strip performance specifications.

Common widths are: 180mm, 200mm, 220mm, 250mm, 280mm, 300mm

The commonly used thickness is: ,, and the commonly used hole diameter is: 40mm*60mm 30mm*70mm.

1. The raw material of WANTAN is made of high-strength alloy strip steel; Crack the dust.

2. It has higher rigidity and strength;

3. The modulus of the bending section of W steel belt is increased by 54 times;

4. The hardening effect of W steel belt in the cold pressing process can increase the tensile strength by 28-46%.

The scattered multiple bolts are connected to form an integral bearing structure through the W steel belt, which significantly improves the overall effect of bolt support, and the application effect is better in the incomplete roofstone.

Model Width(mm) Thickness(mm) Forming Height(mm) Hole Diameter (mm) Length(mm).

wd-180 195mm 32 30*60 1100-3000wd-255 275mm 32 30*60 1100-4000wd-275 295mm 32 30*60 1100-5000<>

At present, in the production mines of the domestic group companies, the mining depth of the W steel belt has reached more than 500-1000 meters, the in-situ stress, the surrounding rock stress and deformation are complex and diverse, and the single bolt support has not been able to meet the roadway support requirements of the broken roof, composite roof, and roof pressure, and the anchor beam system composed of the anchor rod and the W steel belt together can effectively control the roof, and the Chang collapse can also be in the roadway and chamber support of the large fracture at the same time. The anchor beam system not only solves the problem of roadway support, but also can be applied to the support of other large roadways and chambers in the state, and can also be used in the reinforcement of landslides, embankments and dams.

W steel belt can be combined with a variety of anchor rods to combine the anchor disk support, W steel belt is through W steel belt to disperse a plurality of anchor rods connected together to form an overall bearing structure, W steel belt is widely used in coal mine roadway, working face cutting eye, chamber and other areas of roadway support, the treatment of unstable surrounding rock effect is better.