Where are chemical bolts mainly used?

Chemical bolts. It is to rely on the grip and wrapping force between the concrete and the mechanical occlusion force to resist the pull-out and the bolt itself to resist shear, mainly used in the connection of the old and new structures, the mechanical indicators should be calculated according to the information provided by the manufacturer, because the chemical adhesives produced by various manufacturers are different, so the bonding capacity is also different, there are more brands in the mainland, and the good and bad are uneven, and its performance needs to be carefully verified before use. Chemical bolts are a kind of embedded parts, in embedded parts.

It is used in buried or post-construction works. Suitable for heavy loads.

Fastening on near-margin and narrow components (columns, balconies, etc.) can be used in concrete (=>C25 concrete) and anchored in pressure-resistant natural stone.

untested).

Where can chemical bolts be used, chemical bolts are mainly suitable for the following anchorage: steel reinforcement, metal components, trailers, machine substrates, road guardrails, formwork fixing, soundproof wall foot fixing, street sign fixing, sleeper fixing, floor slab edge protection, heavy support beam, roof decoration components, windows, protective nets, heavy elevators, floor supports, construction support fixing, through transmission systems, sleeper fixing, bracket and racking system fixing, anti-collision facilities, car trailers, pillars, chimneys, heavy billboards, Heavy-duty soundproof walls, heavy-duty door fixing, complete equipment fixing, tower crane fixing, pipeline fixing, heavy-duty trailer, guide rail fixing, nail plate connection, heavy-duty space dividing device, shelving, awning fixing. Fields of application Suitable for heavy loads fixed on near margins and narrow components (columns, balconies, etc.) Can be used in concrete (=>C25 concrete) Can be anchored in pressure-resistant natural stone (untested) Suitable for the following anchorage above the reinforcement.

According to the actual requirements, the hole should be drilled first, and the drilling diameter should be 2mm larger than the nominal diameter of the chemical bolt. The chemical* part of the chemical bolt is placed into the drilled hole. The bolt was driven in with a percussion drill, and after eight hours it was completely solidified.

According to the requirements of the engineering design, the chemical anchor bolt construction method drills holes in the corresponding position in the substrate (such as concrete), and the hole diameter, hole depth and bolt diameter should be determined by professional and technical personnel or field tests. Brush the hole wall with a stiff brush and then blow out the dust with clean and oil-free compressed air, and so on for as long as 3 times. If necessary, a clean cotton cloth can be dipped in a small amount of acetone or wine.

It is necessary to consider the strength of the concrete column, and the stress form of the steel beam has an impact on the length of the chemical anchor bolt, and there is simple shear resistance, as well as uplift and torsion resistance, which is more complex and needs to be calculated and determined. <>

Can be anchored in pressure-resistant natural stone (untested) Suitable for the following anchoring: reinforcement, metal components, trailers, machine substrates, road guardrails, formwork fixing, soundproof wall footing, street sign fixing, sleeper fixing, floor slab edge protection, heavy support beam, roof decoration components, windows, protective nets, heavy elevators, floor supports, construction support fixing, through-transmission systems, sleeper fixing, bracket and racking system fixing, anti-collision facilities, car trailers, pillars, chimneys, heavy billboards, Heavy-duty soundproof walls, heavy-duty door fixing, complete equipment fixing, tower crane fixing, pipeline fixing, heavy-duty trailer, guide rail fixing, nail plate connection, heavy-duty space dividing device, shelving, awning fixing. <>

How to use chemical bolts:

1. Drilling: According to the design requirements, the position is determined according to the spacing and margin of the drawings, and the hole diameter and depth must meet the design requirements.

2. Hole cleaning: Use air pressure blowpipe and other tools to remove the floating ash and dust in the hole to keep the hole clean.

3. Insert the medicine tube: Insert the medicine tube into a clean hole, and use the hose only when the resin can flow like honey under hand temperature when inserted.

4. Drill into the bolt: use an electric drill.

Screw in the screw until the agent flows out. Electric drills generally use percussion drills.

or hand drills with a penetration rate of 750 rpm. At this time, the bolt is screwed in, and the agent tube will be broken, resin, and curing agent.

and quartz grains and fill the gap between the anchor bolt and the hole wall.

At the same time, the anchor bolt can also be inserted into the wet hole, but the water must be drained out of the borehole, and the waiting time for the gelling process and the hardening process must be doubled.

5. Gel process: keep the installation tool still and the chemical reaction.

See details for timing.

6. Hardening process: remove the installation tools and wait for the agent to harden, and the chemical reaction time is shown in details.

7. Fix the object: After the agent is completely hardened, add a washer and a hexagon nut to fix the object.

Chemical bolts are composed of chemical hoses, screws, washers and nuts. Screws, washers, nuts (hexagons) are generally galvanized steel and stainless steel (hot-dip galvanized can also be required as required.

Chemical hoses (or plastic-wrapped pharmaceutical tubes) contain reactive resins, hardeners, and quartz particles.

Specific use of chemical anchors:

1. According to the requirements of engineering design, drill holes in the corresponding position in the base material (such as concrete), and the hole diameter, hole depth and bolt diameter should be drilled by professional and technical personnel.

2. Use a special air cylinder, brush or compressed air machine to clean the dust in the borehole.

3. Ensure that the surface of the bolt is clean, dry and oil-free.

4. Confirm that there is no abnormal phenomenon such as appearance damage and coagulation of the glass tube anchor package.

5. Use an electric drill and a special installation fixture to rotate the screw and insert it until the bottom of the hole.

6. When it is screwed to the bottom of the hole or the marked position on the bolt, stop rotating, remove the fixture, and avoid disturbance after gelling until it is completely cured.

Chemical anchor bolt is a high-strength anchor bolt with vinyl resin as the main raw material, which was called chemical bolt in the early days. Chemical anchor bolt is a new type of anchor bolt that appears after the expansion anchor, which is a composite part that is cemented and fixed in the concrete substrate borehole through a special chemical adhesive to realize the anchorage of the fixing.

How should chemical bolts be used, the guy fixes the bolts on the wall, and the tensile force is no worse than ordinary expansion.

The standard construction process for HAMM chemical bolts is as follows:

1. Substrate drilling: drilling tools - impact electric hammer;

2. Hole clearing: 1Use compressed gas such as an air pump or gas cylinder to blow away the dust in the hole;

2.Use a brush to remove the dust attached to the inner wall of the hole;

3.Step gathering is repeated many times to remove the dust in the hole to the greatest extent;

3. Put the medicine tube: Confirm the fluidity of the resin by hand or visual inspection, and then insert the agent into the bottom of the hole after confirmation;

4. Screw-in screw: the screw is embedded in the front end with a 45° chamfering angle, and the rear end is screwed into the hexagonal nut and driven by an electric tool to screw into the bottom of the hole to stop, and confirm that there is resin rising to the vicinity of the orifice;

6. Fixed objects: objects can be fixed after the curing period;

7. Storage: Store in a cool and dry place away from light, and the storage period is 12 months.

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The installation method of chemical spiral is as follows: 1. Drilling: firstly, according to the design requirements, determine the position according to the spacing and margin of the drawing, and drill the liquid on the foundation.

The hole diameter and depth of the hole must meet the design requirements. 2. Clean the hole: use a pneumatic blowpipe and other tools to remove the dust and dust in the hole and keep the hole clean.

3. Insert the medicine tube: Insert the medicine tube into a clean hole, and use the hose only when the resin can flow like honey at hand temperature. 4. Drilling bolts:

Tighten the screw with an electric drill until the agent flows out. Electric drills usually use percussion drills or hand drills with a speed of 750 rpm. After the screw is tightened, the tube breaks, the resin, curing agent, and quartz particles are mixed, and the gap between the screw and the hole wall is filled.

It is also possible to insert anchor bolts into wet holes, but the shaking base must be used to draw water out of the holes and double the waiting time for the gel hardening process. 5. Gel method: keep the installation tool still.

See chemical reaction time for details. 6. Hardening process: remove the installation tool and wait for the medium to harden.

See the chemical reaction time for a detailed letter. 7. Fixing the object: After the agent is completely hardened, fix the object with a washer and a hexagonal nut.

Chemical bolts consist of chemical hoses, screws, washers, and nuts. Screws, washers, nuts (hexagonal heads) are generally galvanized steel and stainless steel (hot-dip galvanized can also be upon request). This chemical hose (or plastic-encased chemical hose) contains reactive resins, hardeners, and quartz particles.

Chemical bolt chemical bolt is to rely on the grip and wrapping force between the concrete and the posture of the machine to resist the bolt itself to resist shear, mainly used in the old and new structure of the chain joint, the mechanical indicators you can find the manufacturer is the product introduction, the calculation should be carried out according to the information provided by the factory caller, because the chemical adhesives produced by various manufacturers are different, so the bonding capacity is also different. Chemical bolts are a kind of embedded parts, which are used in the leakage of embedded parts or post-construction projects.

I've seen it for reinforcement.

Standard Construction Method for Chemical Bolts:

1. Substrate drilling: drilling tools - impact electric hammer;

2. Hole clearing: 1Use compressed gas such as an air pump or gas cylinder to blow away the dust in the hole;

2.Use a brush to remove the dust attached to the inner wall of the hole;

3.Step gathering is repeated many times to remove the dust in the hole to the greatest extent;

3. Put the medicine tube: Confirm the fluidity of the resin by hand or visual inspection, and then insert the agent into the bottom of the hole after confirmation;

4. Screw-in screw: the screw is embedded in the front end with a 45° chamfering angle, and the rear end is screwed into the hexagonal nut and driven by an electric tool to screw into the bottom of the hole to stop, and confirm that there is resin rising to the vicinity of the orifice;

6. Fixed objects: objects can be fixed after the curing period;

7. Storage: Store in a cool and dry place away from light, and the storage period is 12 months.

Studs are firmware used with nuts.

A nut is a part that holds a mechanical device together.

The nut is a part that closely connects the mechanical equipment, through the inner thread, the nut and the bolt of the same specification can be connected together, for example, the nut can only be connected with the series of bolts (in the nut, M4 refers to the inner diameter of the nut is about 4mm, which means that the distance between the two thread teeth is; The nut is the nut, which is screwed together with the bolt or screw rod to play the role of fastening parts, and all the components that must be used in manufacturing machinery are divided into carbon steel, stainless steel, non-ferrous metals (such as copper) and other major types according to different materials.

Bolts: mechanical parts, cylindrical threaded fasteners with nuts. A type of fastener consisting of a head and a screw (a cylinder with an external thread) that is used in conjunction with a nut to fasten two parts with through holes.

This form of connection is called bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. Bolts and nuts are standard parts, also known as fasteners.

According to the national standard classification GB 5780. Usually, the outer pattern is protruding from the bolt (commonly known as the screw), and the grain is on the bolt with the nut (commonly known as the nut).

Bolt: A type of fastener consisting of two parts, a head and a screw (a cylinder with an external thread), which needs to be matched with a nut to fasten and connect two parts with through holes. This form of connection is called bolted connection.

If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.

Nut: with internal threaded holes, the shape is generally flat hexagonal cylindrical, and there are also flat square cylindrical or flat cylindrical shapes, with bolts, studs or machine screws, used to fasten and connect two parts, making them a whole.

There are many ways to call bolts, and everyone's way of calling du may be different.

Specialized into bolts, some people call it fastening attachments. Although there are so many names, they all mean the same, they are all bolts. Bolts are a generic term for fasteners.

A bolt is a tool that uses the physical and mathematical principles of the oblique circular rotation and friction of an object to tighten the mechanical parts of the object step by step.

Bolts are indispensable in daily life and industrial manufacturing, and bolts are also known as industrial rice. It can be seen that the use of bolts is extensive. The application range of bolts is as follows:

Electronic products, mechanical products, digital products, power equipment, mechanical and electrical mechanical products. Bolts are also used in ships, vehicles, hydraulic projects, and even chemical experiments. Anyway, there are a lot of places where bolts are used.

Such as the precision bolts used in digital products. miniature bolts used in cameras, glasses, clocks, electronics, etc.; General bolts for televisions, electrical products, musical instruments, furniture, etc.; As for engineering, construction, and bridges, large bolts and nuts are used; Transportation equipment, airplanes, trains, automobiles, etc., are used with both large and small bolts. Bolts have an important task in industry, and as long as there is industry on the earth, the function of bolts will always be important.