Induction shrink fitting is a process in which a precise electromagnetic field is used to heat and thermally expand an electrically conductive material prior to assembly, resulting in an interference fit joint upon return to ambient temperature.
Shrink fitting refers broadly to techniques in which thermal expansion and contraction effects are used to achieve an interference fit. Commonly, this involves the heating of the 'outer' part so that it undergoes thermal expansion. The two pieces can then be relatively easily fitted together.
THE TECHNICAL PARAMETERS OF THE INDUCTION HEATING MACHINE:
| Model | GYMD-100AB (Three phase) |
| Work power | 340v-430v |
| Maximum input current | 150A |
| Output power | 100KW |
| Fluctuating frequency | 1-10KHZ |
| The flow rate of cooling water | 0.15-0.3Mpa 10L/Min |
| Water temperature protection point | 40C |
| Product size | main :874x520x1100 mm |
| transformer :870x430x750 mm |
| Net weight | main : 115 kg |
| transformer : 76.5 kg |
APPLICATIONS OF INDUCTION HEAT TREATMENT MACHINE:
Induction shrink fitting technology is widely used in the industries such as aerospace, automotive, and rail industries for all kinds of bearings, gears, bushings, and other metal interference parts for rapid heating assembly, and the loosen hot removal of stuck nuts or bolts. GY induction shrink fitting equipment has the characteristics of automatic temperature control, automatic alarm, automatic demagnetization, fast heating, no damage, no annealing, simple operation, convenience, and so on. It can be assembled in three minutes after electrification. Induction shrink fitting is mainly used for heating various types of metal parts such as bearings, gears, coupling joints, wheel cores, and wheels of railway locomotives, so as to expand them to meet the needs of interference assembly or disassembly. Our portable induction heating machine are used for shrink assembly tasks on ships and offshore platforms, and increasingly for mounting and removing giant nuts and bolts in power station turbines, as well as bearings and shafts in wind turbines.
ADVANTAGES OF INDUCTION HEAT TREATMENT MACHINE:
GY induction shrink fitting machines are fully automatic, safe, energy-saving, and environmental protection effective modern induction heating products. Our induction shrink fitting machines have the following advantages.
- Induction shrink fittings do not need to heating the workpiece as a whole, can selectively heat the part, so as to achieve the less power consumption purpose, and the workpiece deformation is not obvious.
- The induction shrink fitting speed is fast, which can make the workpiece reach the required temperature in a very short time, even within 1 second. So that the workpiece surface oxidation and decarbonization are relatively slight, most of the workpieces do not need gas protection.
- The surface hardened layer can be regulated by adjusting the induction shrink fitting machine operating frequency and power as required. Therefore, the martensite structure of the hardened layer is fine, and hardness, strength, and toughness are relatively high.
- The workpiece, after the induction heater heat treatment process, there is a thick toughness area under the hard layer of the surface, with better compressive internal stress, so that the fatigue resistance and braking ability of the workpiece are higher.
- The induction shrink fitting equipment is easy to install on the production line, easy to realize mechanization and automation, easy to manage, can effectively reduce transportation, save manpower, and improve production efficiency.
- Can realize one machine multi-purpose. Not only can complete quenching, annealing, tempering, normalizing, tempering, and other heat treatment processes, but also can complete welding, melting, shrink fitting assembly, thermal disassembly, and diathermy forming, and other work.
- Easy to use, easy to operate, can be started or stopped at any time. And without induction preheating.
- Manual operation, semi-automatic and automatic operation; It can work continuously for a long time, or stop used randomly. It is conducive to the use of equipment in the preferential period of power supply through price.
- High power utilization rate, environmental protection, and energy saving, safe and reliable, good working conditions for workers, national advocate, and so on.
