Monthly Archives: May 2019

Connections of High Strength Bolts

The difference between friction type and compression type connections of high strength bolts: High-strength bolt connection can be divided into two types: high-strength bolt friction connection and high-strength bolt compression connection according to different design and stress requirements when shearing force is applied. The essential difference between the two types is that the ultimate state [...]

By |May 29th, 2019|Carriage Bolts, Heavy Hex Bolts|Comments Off on Connections of High Strength Bolts

Difference between High Strength Bolt and Common Bolt

From the point of view of raw materials, material of High Strength Bolt and Common Bolt strength is different. High strength bolts are made of high strength materials. The bolts, nuts and washers of high strength bolts are made of high strength steel, commonly used in 45 steel, 40 boron steel, 20 manganese titanium boron [...]

By |May 27th, 2019|Carriage Bolts, Elevator Bolts, Heavy Hex Bolts, Hex Bolts, High Strength Bolts|Comments Off on Difference between High Strength Bolt and Common Bolt

High Strength Bolts

High Strength Bolts Bolts made of high-strength steel or requiring large preloading force can be called high-strength bolt. High-strength bolts are mostly used to connect bridges, rails, high-pressure and ultra-high-pressure equipment. The fracture of this kind of bolt is mostly brittle fracture. In order to ensure the sealing of the container, the high-strength bolt used [...]

By |May 25th, 2019|Heavy Hex Nuts, High Strength Bolts|Comments Off on High Strength Bolts

Application of Ring Screw

Application of Ring Screw:Ring screw should be mainly used in port, shipbuilding, railway, construction, plastic machinery, industrial control, pipeline auxiliary equipment, marine rescue, Airport construction, aerospace, venues and other important industries as well as infrastructure engineering machinery and equipment. Cautions for using application of ring screw: 1. Users must be trained before they can use [...]

By |May 15th, 2019|Eye Bolts, Ring Bolts, Screws|Comments Off on Application of Ring Screw

Ring Bolts Surface Treatment

Generally, hanging ring bolts do not undergo surface treatment, but according to the requirements of use, they can be passivated by galvanizing, chromium plating and other surface treatment. Ring Bolts Surface Treatment Dehydrogenation should be carried out immediately after galvanizing. As a standard fastener, ring bolt is widely used in mechanical and electrical products. Its [...]

By |May 13th, 2019|Eye Bolts, Ring Bolts, Screws|Comments Off on Ring Bolts Surface Treatment

Bolts Production Material

At present, the standard Bolts Production Material on the market mainly include carbon steel, stainless steel and copper. Carbon steel: We distinguish low carbon steel, medium carbon steel and high carbon steel as well as alloy steel with carbon content in carbon steel. stainless steel: Performance rating: 45, 50, 60, 70, 80. copper: Common materials [...]

By |May 11th, 2019|Bracket Bolt, Carriage Bolts, Countersunk Bolt, Elevator Bolts, Eye Bolts, Flange Head Bolts, Heavy Hex Bolts|Comments Off on Bolts Production Material

Quality Inspection of Screws

There are two types of screw surface inspections, one is the inspection before the screw is produced, and the other is the inspection after the screw plating. Inspection method after screw treatment: Appearance quality requirements: The inspection of the appearance of the screws is carried out in terms of appearance, plating and other aspects. Inspection [...]

By |May 9th, 2019|Lag Screw Bolts, Screws|Comments Off on Quality Inspection of Screws

Bolt Manufacturing Process

Annealing: The wire is heated to a suitable temperature for a certain period of time, and then slowly cooled to adjust the crystal structure, reduce the hardness, and improve the normal temperature processability of the wire. Pickling: removes the oxide film on the surface of the wire and forms a phosphate film on the metal [...]

By |May 7th, 2019|Bracket Bolt, Carriage Bolts, Countersunk Bolt, Elevator Bolts, Heavy Hex Bolts|Comments Off on Bolt Manufacturing Process

Eyebolts Technical Requirements

Eyebolts Technical Requirements Eyebolts shall be made of 20 or 25 steel (GB699). The eyebolts must be integrally forged. Forgings should be normalized and the scale removed. The grain size of the finished product should not be lower than Grade 5 (GB6394), and the forgings should not have over-burning or crack defects. In order to [...]

By |May 5th, 2019|Eye Bolts, Ring Bolts|Comments Off on Eyebolts Technical Requirements

About Eye Bolts

Eye bolts are widely used in ports, electric power, steel, shipbuilding, petrochemical, mining, railway, construction, metallurgical chemical, automobile manufacturing, plastic machinery, industrial control, highway, large-scale transportation, pipeline auxiliary, slope tunnel, well treatment Protection, marine assistance, offshore engineering, airport construction, bridges, aviation, aerospace, stadiums and other important industries as well as mechanical equipment for infrastructure projects. [...]

By |May 3rd, 2019|Eye Bolts, Ring Bolts|Comments Off on About Eye Bolts

Carbon Steel Eye Bolt Structure

Eye bolt, as a standard fastener, is widely used in mechanical and electrical products. Its main function is lifting load. Eye bolts generally do not undergo surface treatment, but according to the use requirements, can be passivated by galvanizing, chromium plating and other surface treatment. Dehydrogenation should be carried out immediately after galvanizing. The lifting [...]

By |May 1st, 2019|Eye Bolts|Comments Off on Carbon Steel Eye Bolt Structure