Hot assembly and hot disassembly of large workpieces

Current status of hot assembly and hot disassembly process

  The interference assembly and disassembly of the workpiece, the traditional process uses acetylene heat roasting or oil cooking to achieve interference assembly and disassembly. This is time-consuming and labor-intensive, pollutes the environment, and is not easy to grasp the temperature.

Application of electromagnetic heating in hot disassembly and hot assembly

  In the method of electromagnetic induction heating, a flexible electromagnetic wire is used to wrap the part that needs to be disassembled or installed. After heating, the matching position of the workpiece is expanded to smoothly disassemble or install the workpiece. The electromagnetic heating method is used for disassembly and installation, which is safe, efficient, energy-saving, and environmentally friendly, and can greatly improve work efficiency.

Introduction of electromagnetic heating equipment

  Polaris-etek specializes in the production of fully digital air-cooled large-scale workpiece disassembly and hot assembly equipment, and flexible heating coils. No matter your workpiece is large or small, it can be disassembled and assembled regardless of how complex the workpiece is. It has been widely used in the disassembly and hot assembly of large workpieces such as bearings, gears, sprockets, counter wheels, couplings, connecting shafts, balance shafts, rolls, motor rotors, and pre-welding of large workpieces.

Disassembly principle

  Disassembly and assembly by temperature difference method: The temperature difference method is an assembly method that heats the swelling and shrinks the contained part, or cools the contained part, and can also heat the contained part and cool the contained part at the same time to obtain a fit. It is called the temperature difference method for disassembly and assembly.

  Thermal disassembly is based on the disassembly principle of the temperature difference method. When the entire workpiece is heated by electromagnetic induction, a certain temperature difference will occur between the contained part and the contained part. The matching gap between the containing part and the contained part is correspondingly enlarged. This makes it easier to disassemble the mating workpiece. In the same way, if the contained part is heated, the contained part is cooled or the temperature does not change, and the temperature difference is generated, and the contained part can be put into the contained part.

Features

1. There is no need to pass water, and the fully air-cooled structure makes installation easier, more convenient to use, and reduces a large potential point of equipment failure.

2. The flexible heating coil is not affected by the size and shape of the workpiece, and can be hot-assembled and hot-disassembled.

3. Manual, automatic, and temperature control three modes of use provide customers with a variety of operating options.

4. The digital embedded control system improves the accuracy of the equipment while making the equipment more stable and efficient.

5. Thanks to the all-digital control, the frequency and power of the equipment can be adapted according to the size and complexity of the workpiece, and it is coordinated with nine alarm modes to greatly reduce equipment damage and safety hazards caused by operator misoperation.

Precautions

1. During the disassembly process, pay attention to the heating rate. Avoid damage to the surface of the workpiece.

2. Theoretically, in the process of hot disassembly and hot fitting, the heating expansion value must be greater than the fit interference value, so that the workpiece can be removed or assembled smoothly and safely.

Live application

joint venture       

  Welcome new and old customers to: Henan Yongtong Aluminum Co., Ltd., Henan Daoqiang. Henan Xingyang Electric, Xinzheng Zhengshang Power, Henan Zhongneng Electric, Chongqing Minjie Electric. Xiangtan Electric Group, Henan Litong Aluminum. Xi'an Gantz Motor, Jiamusi Motor Northwest Maintenance Center. Liuzhou Iron and Steel, Rizhao Iron and Steel, Pingxiang Iron and Steel, Kunming Jingkuida Motor, Yutong Heavy Industry, Nanjing Dingyang Technology, Xi'an Heavy Electric, Tangshan Heavy Electric, Henan Longquan Aluminum, Shanghai Tong Electric, Zhengshang Electric, Henan Lingtong Electric, Datong Locomotive Plant, Taiyuan North Depot, CSR Group, Beijing Bochuang, Nanyang Xichuan Aluminum, Sanmenxia Aluminum Plant, Wanji Aluminum, Henan Wanda Aluminum, Jinan Bingda Heavy Motor, Xinxiang Zhenyuan, Xinxiang Wemeng, Henan General Machinery, Henan Jianai, Henan Great Wall, Litong Aluminum and other companies inspected.