Threaded Sleeve
What Is Threaded Sleeve?
A threaded insert is a threaded metal cylinder that is inserted into an existing hole to provide a threaded pathway for a fastener such as a screw or bolt. Also known as threaded bushings, threaded inserts are used to repair damaged threads and improve the thread strength of the parent material. Threaded inserts are used in metal, plastic and wood and typically require special tools for installation.
Advantages of Threaded Sleeve
Structural/durability advantages
This is the most important advantage that threaded inserts provide, as it covers many aspects of the structural integrity of the joint. Threaded inserts can provide structural sturdiness to joints that are lacking in the rest of the part.
Production cost advantage
The obvious fact is that using threaded inserts instead of cutting threads directly in the part saves part manufacturing and assembly time. Threaded inserts can be specified to meet a variety of geometries and thread sizes to precisely match design requirements. This eliminates the need to tap on mating parts, which is a costly and time-consuming manufacturing process.
Good physical properties and reliable docking
Since the top of the building reinforcement is formed by extrusion, and the raw materials of the building reinforcement are solved by cold working, the compressive strength of the external thread and the building reinforcement gradually increases, which makes the compressive strength of the butt joint higher than the compressive strength. Butt welds take full advantage of their compressive strength and ductility.
Convenient moorings
It can be used flexibly where the rebar is placed in a narrow position. Practical and efficient construction: The specifications of the structural rebar sleeve pipe have been prefabricated in the processing plant and the quality is guaranteed: The on-site thread rolling head machine and equipment can produce almost 400 connectors per shift. It has advantages in a large number of engineering construction and villa basements, no pollution during the construction of the project, no open flames, and safe productionit can be built all day long.
Good for inspection
No special inspection equipment is required during construction, just to check the condition of the reinforcement in the building.
High acceptability
Structural reinforcement butt joints for all seismic and non-seismic building reinforced concrete structure projects, not for structural reinforcement. Original structural steel, fixed building reinforcement, cast-in-place piles, longer structural steel, etc. There is a place to return.
Why Choose Us
High quality
We take pride in the craftsmanship of our products and ensure that each one meets our strict standards for quality.
Customized services
We understand that each customer has unique manufacturing needs. That's why we offer customization options to cater to your specific requirements.
Rich experienc
Dedicated to strict quality control and attentive customer service, our experienced staff is always available to discuss your requirements and ensure complete customer satisfaction.
One-stop solution
We can offer a range of services, from consultation and advice to product design and delivery. It is a convenience for the customers, as they can get all the help they need in one place.
Types of Threaded Sleeve
Hexagon thread cylinder
Suitable for the connection of hexagonal screws and nuts, its shape is similar to a hexagonal cube, the internal structure and force are very uniform, the screwing force transfer efficiency is high, and it can withstand small knife moments, and is often used for threaded parts with small moments, such as machinery, machine tools and other fields.
Hexagon ball head threaded sleeve
The county has a ball head design, which can make it easier to adjust the angle of the joint during the coupling time and reduce the wear of the thread.
Hexagon thread cylinder
Suitable for the connection of hexagonal cockroach and butterfly mother, its shape is similar to a hexagon, usually with threaded parts that need to bear large torque, such as automobiles, power tools and other fields.
Twelve-angle (torx) threaded sleeve
The shape is similar to a spherical shape, and the twisting force is evenly transferred, which can be done in the high-power electric 1. It is suitable for threaded parts that require large torques. Polygonal threaded sleeve: Its shape resembles a polygon, and its number of corners is usually 8 or 12. The polygonal threaded sleeve is more complex than the hexagonal and 1 two-corner threaded sleeve, and can withstand greater torque during screwing, and is usually used in the maintenance of automobile and mechanical equipment.
Push-button threaded sleeve
It has a sichuan operated button to quickly install and remove the nut, which is suitable for frequent disassembly.
Construction
In the construction sector, rebar sleeves are often used to reinforce steel bars in concrete structures. The rebar sleeve can effectively improve the tensile strength and seismic resistance of the steel bar, and ensure the safety of the building in natural disasters such as earthquakes.
The field of bridges
In the field of bridges, rebar sleeves are mainly used for the connection of steel bars on piers and abutments. The rebar sleeve can make the steel bar have a higher bearing capacity under the action of longitudinal and transverse forces, thereby greatly enhancing the structural strength and stability of the bridge.
Tunnels and subways
In the field of tunnels and subways, rebar sleeves are usually used for reinforcement and connection of tunnels and subways. The rebar sleeve can ensure the safety and firmness of the steel bar, prevent the damage of natural disasters such as earthquakes to the tunnel and subway, and thus ensure the stable operation of the public transportation system.
Other areas
Rebar sleeves are also widely used in other fields, such as dams, wharves and other large-scale water conservancy projects, highway tunnels, etc. The characteristics of the rebar sleeve are that it can improve the connection strength and corrosion resistance of the steel bar, so as to ensure the safety and stability of the project.
Components of Threaded Sleeve
Sleeve body
The sleeve body is the main part of the sleeve, which consists of the shell and the inner hole. The shell is generally cylindrical, and the inner hole is conical or cylindrical, which is mainly used to connect and transmit force.
Bayonet
The bayonet of the sleeve is used to secure the connection between the sleeve and the tool. There are many types of bayonets, such as flange bayonets, tapered bayonets, prismatic bayonets, etc., and different bayonets can be selected according to different use requirements.
Cogs
The gears on the sleeve are the key components that transfer the force transmitted to the sleeve to the tool and workpiece. The size and type of gears are determined according to the needs of the application, generally spur gears, helical gears, arc gears, etc.
Pin
The pins on the sleeve are used to fix gears and other components, and there are generally two types: Straight pins and elastic pins. Straight pins are an easy way to hold a part, while an elastic pin can be used to join a part with a displacement position.
Flange
The flange is the connector required for sleeve installation. Flanges are divided into two types: Convex and convex, in which the convex flange fits with the inner surface of the machine tool shaft, and the convex flange fits with the outer surface of the machine tool.
Other parts
In addition to the above components, there are also some small components, such as bellows, saving pads, air cushions, etc., which also play an important role in the application process of the sleeve.
Carbon steel
Carbon steel is very useful in the machinery industry because it is cheap and has good machinability. If the corrosion properties are not very high, carbon steel is an ideal choice. The use of carbon steel for threaded sleeves is mainly due to practicality and cost.
Alloy steel
Alloy steel has properties that surpass carbon steel, and in certain cases has more advantages than carbon steel. Common molybdenum-containing alloy steels, chromium-containing alloy steels and alloy steels can be used to make threaded sleeves for medium-pressure, low-temperature and high-temperature occasions. Although alloy steel is more expensive to build than carbon steel, it also has higher application value.
Stainless steel
Stainless steel is one of the commonly used materials for threaded sleeves. Stainless steel threaded sleeves are widely used in various machinery, especially in corrosive environments. Stainless steel has excellent corrosion and wear resistance, which can ensure long-term stability and reliability of the joint.
Other
In some special environments, the material selection for threaded sleeves may also include materials such as titanium, copper, aluminum, lead, zinc, etc. For example, copper threaded sleeves are often used in manufacturing when conductive properties are required.
How to Choose the Threaded Sleeve Correctly
Material requirements
The material of the threaded sleeve is usually high-strength alloy steel or carbon steel. High-strength alloy steel has high density, high hardness, good wear resistance and strong rigidity, which is suitable for high-strength fasteners, while carbon steel is relatively low in strength, but light in weight and good elasticity, and is suitable for general fasteners.
Size requirements
The size of the threaded sleeve must match the fastener. Excessive size can cause threaded sleeves to slip off during operation, while too small size can cause seizure, making operation difficult or even failing.
Toughness requirements
The threaded sleeve must have a certain toughness in order to withstand a certain torsional force and impact force during operation to avoid potential safety hazards such as breakage.
●Before operation, check whether the size and material of the threaded sleeve match, and check whether there are obvious defects such as damage or cracks on its surface.
●When using, keep the threaded sleeve and fasteners vertical, do not tilt or crooked, and avoid damaging the fasteners or threaded sleeves.
●When installing and dismantling, pay attention to the use of appropriate torque, do not twist excessively or use too much force to use the threaded sleeve, so as not to cause damage or slipping.
●The threaded sleeve should be cleaned in time after use, and maintenance should be carried out to prolong the service life.
Material requirements
Straight threaded sleeves are generally made of high-quality carbon steel, alloy steel or stainless steel, etc., and attention should be paid to choosing the right material during use.
Specifications
The diameter of the straight threaded sleeve should meet the design requirements, and the specifications of the threads should correspond to the joints to ensure that the connection is tight.
Surface requirements
The surface of the straight threaded sleeve should be smooth and flat, free of damage and corrosion. The surface hardness should be uniform, and there should be no defects such as looseness, bubbles, and interlayers.
How to Install The Threaded Sleeve
Threaded sleeves, threaded sleeve mounting clips, nuts, notch screwdrivers, hammers, etc.
The installation position of the threaded sleeve needs to be decided according to the actual situation of the threaded rod, and it needs to be straight, vertical and horizontal when installing.
Make a suitable hole in the installation position, and pay attention to the diameter and depth of the hole to meet the size requirements of the threaded sleeve.
Insert the threaded sleeve into the pre-made hole, at this time, you need to use the threaded sleeve installation clamp, and insert it into the hole by clamping the threaded sleeve until the threaded surface is flush with the surface of the material, so as to ensure the accurate position of the threaded sleeve.
First use a notch screwdriver to fix the threaded sleeve in the preset drilled hole, and then use a nut to fix the threaded sleeve.
Hammer the nut tightly with a hammer and check the position and fixing firmness of the threaded sleeve to confirm the successful installation.
Our Factroy
Shuifu Hanyang Machinery Technology Co., Ltd. is a company specializing in high-strength fasteners, hardware accessories, mechanical parts and other products, integrating production, sales, and research and development. It operates in the spirit of "operating with integrity and advocating standards" concept, give full play to regional and industrial advantages, serve customers around the world, and provide professional fastener connection solutions.
FAQ
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