What is a steel sleeve?
Steel sleeve is also called a steel joint. A connector for connecting reinforcement and having an internal thread corresponding to the thread of the screw head. The construction process is simple. The end of the steel bar is processed into straight thread by rolling process, and the two steel bars are connected with each other by the corresponding connecting sleeve.
application of steel sleeve
It is widely used in the coiling of foil, strip, and plate in the industries of aluminum foil, aluminum plate, and stainless steel foil strip, etc.
As the sleeve rotates at high speed during working, the requirement for concentricity and dynamic balance of the sleeve is strict, which has a great influence on the product qualification rate and subsequent reprocessing. Therefore, centrifugal pouring is the best production process for the steel sleeve.
Sometimes products need heat treatment, which puts higher requirements on steel sleeves. Generally speaking, carbon steels such as ZG45 and ZG55 have lower strength and are not resistant to high-temperature deformation, they need alloy steel sleeves such as ZG35CrNiMo, ZG25Cr2Mo1V and 35CrMo.
Process Of Steel Sleeve
In general the product of steel sleeve for cold rolling mill process is as following:
1.Steel smelt with qualified ingredients.
2.Centrifugal casting.
3. Semifinished products forming.
4.Semi-finished products heat treatment-normalizing.
5.Semifinished products heat treatment-tempering.
6.Semifinished products quenching and machining.
7. Finishing internal side.
8. Finishing outside surface benchmarked with an internal hole.
9.Products inspection.
10. Strike steel sleeve for cold rolling mill trademark.
11. Certificate issued.
12.Packaging.
Quenching process: Pit quenched with water quenching and oil cooling.
We use the advanced process of smelting and casting dedicated to ensure the steel sleeve chemical composition is reliable, accurate, and has the same properties. Centrifugal casting is dedicated to ensuring internal and external surfaces of the sleeve have no defects such as crack, slag, blowhole, blister, etc. The heat treatment process will make sure the mechanical performance of the sleeve. With the special machining tool and rational process, the sleeves have high performance of concentricity, cylindrical, symmetry, and balance.
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Complete size, Parker standard model. We also accept customization, can produce stainless steel 304 and 316. Can provide free samples, please cooperate with me in good faith Hydraulic fittings manufacturer -HT- from China
Specifications: Steel bar connection 1.Material:carbon steel 2.Easy operation 3.Saving time& rebar material 4.No.45 steel Specifications Steel bar connection 1.Material:carbon steel 2.Easy operation 3.Saving time& rebar material 4.No.45 steel Spec.: 1. Sleeve material: #45 high quality carbon steel 2. Diameter :14~40mm (enough quantity in stock) 3. Carbon sleeve thread pitch:1.75/2.5/3/4 4. Sleeve standard thread angel: 60/75 5. Steel bar sleeve is used to connect two pieces of rebar together. 6. Passed the tensile strength test, the tensile strength is 594mpa, test report canbe supplied as well. 7. The steel bar connecting sleeve has passed iso9001 international quality system, so quality can be guaranteed with no doubt. 8. Types: standard type / left-handed and right-hand type/ reducing type sleeve. 9. We are well-known enterprise in bar connecting field in china. 10.Different spec.Is available as per your requirements, free sample can be supplied for your reference.
Steel bar connection 1.Material:carbon steel 2.Easy operation 3.Saving time& rebar material 4.No.45 steel Specifications Steel bar connection 1.Material:carbon steel 2.Easy operation 3.Saving time& rebar material 4.No.45 steel Spec.: 1. Sleeve material: #45 high quality carbon steel 2. Diameter :14~40mm (enough quantity in stock) 3. Carbon sleeve thread pitch:1.75/2.5/3/4 4. Sleeve standard thread angel: 60/75 5. Steel bar sleeve is used to connect two pieces of rebar together. 6. Passed the tensile strength test, the tensile strength is 594mpa, test report canbe supplied as well. 7. The steel bar connecting sleeve has passed iso9001 international quality system, so quality can be guaranteed with no doubt. 8. Types: standard type / left-handed and right-hand type/ reducing type sleeve. 9. We are well-known enterprise in bar connecting field in china. 10.Different spec.Is available as per your requirements, free sample can be supplied for your reference. Contact me We highly appreciate your any enquiry by email, fax or instant message. According to customer requirements
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* In the field of constructions, steel acts as a powerful structure, which creates a high strength, durability and stability. Steel is an alloy of iron and carbon and sometimes other elements. It is a low cost and a significant component used in buildings, infrastructures, tools, machines, appliances, etc. * Steel being the most preferred choice for construction has great benefits. The buildings are made up of different types of steel, which forms a structural framing system, saves time and less expensive * Steel reinforcement bars or rebars are used to improve the tensile strength of the concrete. * Steel is only used as rebar because elongation of steel due to high temperatures (thermal expansion coefficient) nearly equals to that of concrete Types of Steel Reinforcement Bars * Major types of steel bars used in the construction I.Mild Steel Bar * The surface of the mild steel bars are plain and round in shape. They are available in various sizes of 6 mm to 50 mm. They are used in concrete for special purposes, such as dowels at expansion joints, where bars must slide in a metal or paper sleeve, for contraction joints in roads and runways, and for column spirals. They are easy to cut and bend without damage. Grades in mild steel bars 1. Mild Steel Bars Mild steel bars grade-I designated as Fe 410-S or Grade 60. Mild steel bars grade-II designated as Fe-410-o or Grade 40. 2. Medium Tensile Steel Bars designated as Fe- 540-w-ht or Grade 75. II.Deformed Steel Bar Deformed steel bars have ribs, lugs and indentation on the surface of the bar, which reduces the major problem that is faced by mild steel bar due to slippage and good bonding is achieved between concrete and rebar. The tensile properties is higher compared to other rebars. These bars are produced in sections from 6 mm to 50 mm dia. 1. TMT Bars (Thermo Mechanically Treated Bars) Thermo Mechanically Treated Bars are hot treated bars that are high in strength used in reinforced cement concrete (RCC) work. It is the latest induction in the MS steel bars with superior properties such as strength, ductility, welding ability, bending ability and highest quality standards at international level. Characteristics of TMT Rebars Better ductility and malleability High yield strength and toughness More bonding strength Earthquake resistance Corrosion resistance High thermal resistance Economical and safe in use No loss in strength at welded joints Ordinary electrodes used for welding the joints 2. High Strength Deformed Bars High strength deformed bars are cold twisted steel bars with lugs, ribs, projection or deformation on the surface. It the extensively and majorly used for reinforcement purposes in a construction. These bars are produced in sizes or sections from 4 mm to 50 mm in diameter.
Reinforcement sleeve, also known as reinforced joints: used to connect the steel and corresponding to the thread head thread connections. On rebar stripping rib rolling straight thread connecting a new type of rebar connection sleeve technology and its structure principle is will be end parts of the connected steel bars of longitudinal ribs and transverse rib cutting method of pulling off a part of, and direct rolling into ordinary straight thread after that special straight thread steel bar connecting sleeve connected with, the formation of reinforced connection.
Hebei tiantai machinery group limited liability corporation is a medium-sized private enterprise. By flexible mechanism and high-tech products, we win the praise of clients. We, gathering manufacture and export and trade, are a home professional manufacturer. Mainly products are seamless steel pipe and tubes, thermal expansion steel pipe, hot-rolled steel pipe, spiral welded steel pipe and tube and sleeve, product implementation astm a106, astm a179, astm a53, gb/t8163, gb/t8162. Gb/t3087, api 5l. Od: 108mm-219mm, w.T: 6mm-30mm
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