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Anchor Bolts Classification
Aug 31, 2017

Anchor is a new kind of metal fastening material, composed of chemical and metal rod body. Can be used for a variety of curtain walls, marble dry hanging construction after the installation of embedded parts can also be used for equipment installation, highway, bridge rails installation; building reinforcement and other occasions. Because of its glass tube filled with chemical reagents flammable and explosive, so manufacturers must be approved by the relevant state departments to produce, the entire production process requires strict safety measures, and the use of staff and completely isolated production line. If through manual work not only violated the relevant provisions of the state, and very dangerous. Chemical anchor is a new type of anchor after the expansion of the anchor bolt, through a special chemical adhesive, the screw cease fixed in the concrete substrate drilling, in order to achieve the anchor of the composite parts.

Expansion anchors: An anchors that use anchors to extrude anchor holes to form anchorage. Is the use of vertebral body and expansion of the relative movement, to expand the expansion of the expansion, and the hole wall concrete expansion agent pressure, and through the role of shear friction to achieve the resistance of the connector to anchor a component.

Torque-controlled intumescent anchor: pre-drilled with a special drill, through the control of the screw torque to complete the expansion of the installation

Displacement control Intumescent anchor: pre-drilled with a special drill bit, through the sleeve and the relative displacement of the cone to achieve expansion of the installation

Reamer-type anchor: through the drilling of the bottom of the concrete re-slotting reaming, the use of reaming after the formation of concrete bearing surface and bolt expansion between the expansion of the mechanical interlock, to achieve a joint anchorage Component.

Pre-expansion of ordinary bolt: through a special drill hole pre-slotted hole

Self-drilling special anchor: drilling with a special drill, anchor comes with tools, the installation of their own slotted reaming, reaming, installation once completed An card anchor: This is a foreign introduction of the foot Bolts, general imported equipment, anchor bolts are this An card anchor, especially the European equipment, in the back of the bolt has an open metal sets, into the foundation, pull the ribs, open up large fixed.

After the end of the anchor bolt: that is, our market is very common with sets of expansion bolts, can not be fixed alone, need to be fixed with the fixed phase after extrusion, mainly its open sleeve structure restrictions.

Shield anchor: anchor rear opening, the center has a steel nail, when the anchor bolt into the foundation, only need to hit the nails, nails will rise after the opening up fixed.

The anchor is often used in conjunction with the concrete base to carry the weight and load of the load machine, the purpose is to ensure smooth and normal operation of the machine. Concrete structure used anchor material can be carbon steel, stainless steel or alloy steel, should be based on differences in environmental conditions and durability requirements of different, the choice of the corresponding varieties. The performance of the bolt should be in accordance with the relevant provisions of the People's Republic of China's construction industry industry standard "concrete with intumescent, reaming-type construction anchor".

Concrete base in the use of weathering, serious cracking, not dense and so on, this will lead to loose anchor loosening, which led to increased mechanical vibration, affecting the normal operation of the parts. The use of traditional methods of repair, will lead to downtime growth, resulting in huge economic losses. In view of the failure of the anchor, the more effective repair method is the use of polymer composite materials, and the introduction of the most mature is the United States and the United States and China Jiahua concrete repair materials. The material itself has an impact resistance, compressive strength is much larger than the concrete material, and has a variety of chemical properties. Its excellent adhesion to the concrete than the concrete's own strength (concrete will be first broken), but also adhesion to steel and other rough surface, and fast curing performance, for enterprises to save due to the resulting loss.

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