CN205662543U - Inductor to even heating inside and outside circular rod - Google Patents

Abstract

The utility model provides an inductor to even heating inside and outside circular rod mainly includes the electrode connecting plate, the reinforced rib plate, outside induction coil, inside induction coil, outside induction coil and inside induction coil are hollow rectangular side's pipe, inside lets in the cooling water, outside induction coil and two end connection of inside induction coil have the electrode connecting plate, the outside induction coil and the inside induction coil both ends outside are provided with inlet tube and outlet pipe, the inboard is provided with the reinforced rib plate respectively, the inside inside induction coil that is provided with of outside induction coil, the center at inside induction coil is placed to the rod, the cross -section divide into the induction heating district when rod was heated, the transition district, the heat -conduction district. Heating efficiency and speed have been accelerated to this inductor, have reduced the inside and outside temperature of rod, have improved the forming technology and the quality of forging.

Description

A kind of to the induction apparatus of uniformly heating inside and outside circular bar

Technical field

This utility model device is a kind of bar heating inductor, particularly to the sensing of uniformly heating inside and outside circular bar Device.

Background technology

Forging and stamping are one of fundamental technologies of machine-building, occupy very important status in national economy.Forging and stamping produce Manufacturing capacity is also the important symbol weighing a National Industrial level, and forging and stamping are usually and are processed bar, need during forge hot Be heated by bar, traditional heating means are polluted more serious, along with the development of science and technology is progressively inductively heated replacement, Sensing heating be utilize in workpiece the Joule effect of eddy current by workpiece heat, this mode of heating has that efficiency is high, controls accurately, Pollute the features such as few, be widely used in steel billet forging.If but the blank heart table temperature difference is too big, in causing blank Produce additional stress or uneven microstructure, even crack, affect forming technology and the quality of material.Due to sensing heating Principle, surfaces externally and internally can produce the biggest temperature difference, the most accurately controls heat time heating time, reasonably optimizing device structure, is allowed to full On the basis of foot heated parts properties requires, it is effectively improved product quality, the efficiency of heating surface, economizes on resources that it is important to have Meaning.

Summary of the invention

For above not enough, this utility model device provides a kind of to the induction apparatus of uniformly heating inside and outside circular bar.

This utility model device mainly includes electrode connecting plate, deep floor, outside induction coil, induced inside coil, Outside induction coil and induced inside coil are hollow rectangle square tube, and inside is passed through cooling water, outside induction coil and internal sense Answer coil both ends to connect and have electrode connecting plate, outside outside induction coil and induced inside coil both ends, be provided with water inlet pipe And outlet pipe, inner side is respectively arranged with deep floor, and outside induction coil is internally provided with induced inside coil, and bar is placed on The center of induced inside coil, when bar is heated, cross section is divided into the sensing thermal treatment zone, transition region, conduction of heat district.

This use new device includes following technical scheme: is installed on the mobile device by bar, keeps certain speed Mobile, bar is in the same center line with induction coil, is passed through cooling water by water inlet pipe and outlet pipe, connects power supply, has Inductive heating principle understands, and induction efficiency and speed have relationship gap the nearest with outside induction coil away from heating member surface, sensing Efficiency and speed are the highest, and therefore induction coil one end is designed as taper, relatively near away from heating member surface when initially entering, and accelerate sensing The thermal treatment zone is heated, and rear portion induction coil diameter becomes larger, so that sensing thermal treatment zone speed slows down, owing to conduction of heat district reaches Uniform temperature loss of excitation, the eddy current of generation is concentrated mainly on transition region, heat internally conduction of heat block transitive, reduces internal-external temperature difference； Induced inside coil is as outside induction coil shape, and heat penetration is relevant with power frequency, and frequency is the highest, and heat penetration is more Shallow, the power frequency that therefore Inside coil is passed through is relatively low, adds heat penetration, as the principle of external coil, further Reduce internal-external temperature difference, and accelerate the efficiency of heating surface.

Advantage that the technical scheme that this utility model device is provided is brought and good effect:

This induction apparatus accelerates the efficiency of heating surface and speed, reduces bar internal and external temperature, improves the forming technology of forging And quality.

Accompanying drawing explanation

With embodiment, this utility model device is further illustrated below in conjunction with the accompanying drawings.

Fig. 1 is the induction apparatus front view of one preferred embodiment of this utility unit；

Fig. 2 is the operating diagram of one preferred embodiment of this utility unit；

Fig. 3 is the induction apparatus right view of one preferred embodiment of this utility unit；

Fig. 4 is the pole material heating cross section figure of one preferred embodiment of this utility unit.

In figure 1, water inlet pipe；2, electrode connecting plate；3, deep floor；4, outside induction coil；5, outlet pipe；6, bar； 7, induced inside coil；A, the sensing thermal treatment zone；B, transition region；C, conduction of heat district.

Detailed description of the invention

In Fig. 1 Yu Fig. 3, a kind of the induction apparatus of uniformly heating inside and outside circular bar is mainly included electrode connecting plate (2), Deep floor (3), outside induction coil (4), induced inside coil (7), outside induction coil (4) and induced inside coil (7) For hollow rectangle square tube, inside is passed through cooling water, and outside induction coil (4) and induced inside coil (7) both ends connect electricity Pole connecting plate (2), connects power supply, outside induction coil (4) and induced inside coil (7) both ends by electrode connecting plate (2) Outside is provided with water inlet pipe (1) and outlet pipe (5), is passed through induction apparatus internal cooling water, and inner side is respectively arranged with deep floor (3), stablizing induction apparatus, outside induction coil (4) is internally provided with induced inside coil (7), outside induction coil (4) and inside Induction coil (7) is passed through different power frequencies, and the heat penetration of bar is different, reduces internal-external temperature difference.

In implementing shown in Fig. 2 Yu Fig. 4, being installed on the mobile device by bar (6), the speed keeping certain moves, rod Material (6) is in the same center line with induction coil, is passed through cooling water by water inlet pipe (1) and outlet pipe (5), connects power supply, Having inductive heating principle to understand, induction efficiency and speed have relationship gap the nearest with outside induction coil (4) away from heating member surface, Induction efficiency and speed are the highest, and therefore induction coil one end is designed as taper, relatively near away from heating member surface when initially entering, and accelerate The sensing thermal treatment zone (a) heating, rear portion induction coil diameter becomes larger, so that the sensing thermal treatment zone (a) speed slows down, and due to Conduction of heat district (c) reaches uniform temperature loss of excitation, and the eddy current of generation is concentrated mainly on transition region (b), heat internally conduction of heat district C () transmits, reduce internal-external temperature difference；Induced inside coil (7) as outside induction coil (4) shape, heat penetration and electric current Frequency is relevant, and frequency is the highest, and heat penetration is the most shallow, and the power frequency that therefore Inside coil is passed through is relatively low, adds heat penetration, As the principle of outside induction coil (4), further reduce internal-external temperature difference, and accelerate the efficiency of heating surface.

In implementing shown in Fig. 1, outside induction coil (4) and induced inside coil (7) are passed through cooling water, enter induction apparatus Row cooling, prevents owing to temperature is too high, is damaged by induction apparatus.

Claims (4)

1. to the induction apparatus of uniformly heating inside and outside circular bar, one kind mainly includes that electrode connecting plate, deep floor, outside sense Coil, induced inside coil, is characterized in that: described outside induction coil and described induced inside coil are hollow rectangle square tube, Inside is passed through cooling water, described outside induction coil and the connection of described induced inside coil both ends described electrode connecting plate, Being provided with water inlet pipe and outlet pipe outside described outside induction coil and described induced inside coil both ends, inner side is respectively provided with Having described deep floor, described outside induction coil to be internally provided with described induced inside coil, bar is placed on described inside The center of induction coil, when bar is heated, cross section is divided into the sensing thermal treatment zone, transition region, conduction of heat district.

The most according to claim 1 to the induction apparatus of uniformly heating inside and outside circular bar, it is characterized in that: described water inlet pipe and Described outlet pipe passes through to be welded and fixed with described outside induction coil and described induced inside coil, and cooling water is in described outside sense Answer coil and the circulation of described induced inside coil inside.

The most according to claim 1 to the induction apparatus of uniformly heating inside and outside circular bar, it is characterized in that: described deep floor Pass through to be welded and fixed with described outside induction coil and described induced inside coil.

The most according to claim 1 to the induction apparatus of uniformly heating inside and outside circular bar, it is characterized in that: described electrode connects Plate passes through to be welded to connect with described outside induction coil and described induced inside coil.