• Model NO.：MYC
• Warranty：2 Years
• Color：Multi Color
• Customized：Customized
• Condition：New
• After-sales Service：1 Year Warranty Under Normal Use Condition
• Transport Package：Packed in Seaworthy Carton for Export
• Trademark：MYC
• Origin：China
• HS Code：843139
• Production Capacity：5000

Basic Info.

Model NO. MYC Warranty 2 Years Color Multi Color Customized Customized Condition New After-sales Service 1 Year Warranty Under Normal Use Condition Transport Package Packed in Seaworthy Carton for Export Trademark MYC Origin China HS Code 843139 Production Capacity 5000

Product Description

Rubber wrapping drum is an important component and part of belt conveying system. The rubber wrapping of the drum can effectively improve the operation condition of the conveying system, protect the metal drum from wear, prevent the slip of the conveyor belt, and make the drum run synchronously with the belt, so as to ensure the efficient and large volume operation of the belt. The rubber coating of the drum can also effectively prevent the sliding friction between the drum and the belt, reduce the material bonding on the drum surface, and reduce the deviation and wear of the belt. Widely used in: Iron and steel, metallurgy, coal, cement, power generation, chemical fertilizer, grain depot, port and other industries.

Coating material

Natural rubber, nitrile rubber, neoprene, EPDM, polyurethane, etc. can be used.

technology

There are two types of rubber wrapping roller technology. The traditional rubber wrapping technology, such as hot vulcanization technology, mainly vulcanizes its rubber with the roller through the vulcanization tank to ensure the bonding strength between the rubber wrapping panel and the roller. The second is cold vulcanization technology, which uses a special cold vulcanization method to directly bond its roller with the rubber wrapping panel, which can be used for on-site rubber wrapping, underground rubber wrapping, etc, Its technology is more advanced, but also greatly reduces the labor cost.

Manufacturing process: generally, in terms of the main shaft of the drum, it can be divided into the following two types according to the load: (1) the mandrel only bears bending moment, such as the shaft of the drum group; (2) The rotating shaft bears bending moment and torque at the same time, such as the shaft of the transmission drum group; The material of the shaft is generally rolled or forged carbon steel or alloy steel. The usual material is medium carbon steel. No. 45 steel is the most commonly used. For the shaft with large stress and limited size, and some shafts with special requirements, alloy steel can be used. The material is 40 chromium. According to the needs, the shaft generally needs heat treatment or surface strengthening treatment, In order to improve its mechanical properties and wear resistance, the difference of elastic modulus between alloy steel and carbon steel is very small at general temperature, so the use of alloy steel can not improve the stiffness of the shaft; The shaft material is generally subject to quenching and tempering treatment. For the transmission drum group, when the shaft strength index does not meet the requirements, it can also be combined and quenched and tempered, and checked according to the allowable stress of symmetrical circular bending; The technical requirements for shell design are: (1) when the shell is curled, it must follow the rolling direction of the steel plate; (2) The misalignment at the joint shall not be greater than 1mm; (3) Ultrasonic or X-ray flaw detection must be carried out for the longitudinal weld after the drum is coated with glue: ultrasonic flaw detection shall be carried out for 10%, and the weld shall reach grade II in the standard; Radiographic flaw detection starts from one end and detects 20% of the total length. The weld reaches grade II of the national standard. If the flaw detection length is doubled and still unqualified, full-length flaw detection shall be carried out until it meets the requirements; (4) The roundness tolerance of the rolled shell shall not exceed 0.5; (5) Material: Q235 section steel with yield strength of 235 n / m2; For medium-sized drum group and light-duty drum group, when the outer diameter of the hub is greater than 220mm, cast steel shall be used. For light-duty drum group, when the outer diameter of the hub is less than 220mm, hot-rolled round steel shall be used, which shall meet the national standard.