CN2687596Y

CN2687596Y - Preheat porous intake strusture of heating silicon-carbon rod for real-time atmosphere furnace

Info

Publication number: CN2687596Y
Application number: CN 200420034882
Authority: CN
Inventors: 魏唯
Original assignee: Fengye Sci & Tech Hunan LLC
Current assignee: Fengye Sci & Tech Hunan LLC
Priority date: 2004-01-15
Filing date: 2004-01-15
Publication date: 2005-03-23
Anticipated expiration: 2014-01-15

Abstract

The utility model provides a preheat porous intake structure of heating silicon-carbon rod for the industrial real-time atmosphere furnace, comprising a furnace body 1 of the atmosphere furnace with a hearth 4 as the inner cavity and silicon-carbon rods 2. Both sides of the position of a work piece 3 in the middle part of the hearth 4 are respectively provided with a plurality of hollow tubular silicon-carbon rods 2, and both ends of the silicon-carbon rod 2 are correspondingly installed in the corresponding rod holes of the furnace wall on both ends of the furnace body 1. The pipe wall of the silicon-carbon rod 2 positioned in the hearth 4 is provided with a plurality of ventilative small holes 5. The end of the silicon-carbon rod 2 is an intake interface. Adopting the structure of the utility model to supply air to the furnace, each point in the furnace can realize the rapid and simultaneous change of the atmosphere; the sintered product has good consistency; the product deviation rate is below +/-8% when sintering with the full furnace.

Description

The heating Elema preheating porous air intake structure of real-time atmosphere furnace

Technical field

The utility model relates to the structure of industrial atmosphere sintering furnace preheating sintering atmosphere.

Background technology

In the atmosphere sintering process, must in stove, feed a certain amount of gas.It generally is that perforate is directly sent into from the furnace wall that gas enters in the stove, and this mode is no problem in the atmosphere furnace of steady.Because along with the continuation of sintering time, final furnace atmosphere will reach balance under diffusion.But just have limitation, particularly atmosphere to change when very fast in the atmosphere furnace of atmosphere real-time change, certainly will have atmosphere difference between admission and diffusion terminal point, the homogeneity of product that causes sintering to go out is poor.

The utility model content

The technical problems to be solved in the utility model is the defective that exists at prior art, a kind of heating Elema preheating porous air intake structure that is used for real-time atmosphere furnace is provided, good by its atmosphere evenness of sending in the stove, make the interior each point of stove can both realize the quick of atmosphere and change the product quality height of sintering synchronously.

Technical solution of the present utility model is, the heating Elema preheating porous air intake structure of described real-time atmosphere furnace comprises that inner chamber is the atmosphere furnace body of heater and the Elema of burner hearth, its design feature is, the two ends correspondence that many hollow tubular Elemas and described Elema is set in location of workpiece both sides, described burner hearth middle part respectively is installed in the corresponding excellent hole on the furnace wall of described body of heater two ends, be positioned on the Elema tube wall of burner hearth and have some breeder tubes, the end of described Elema is an intake interface.

Below make and further specifying.

Referring to Fig. 1 and Fig. 2, the utility model comprises that inner chamber is the atmosphere furnace body of heater 1 and the Elema (being heating rod) 2 of burner hearth 4, its design feature is, both sides, described burner hearth 4 middle part workpiece, 3 position are respectively equipped with many (for example two to ten, even more) the two ends correspondence of described hollow tubular Elema 2 and described Elema 2 is installed in the corresponding excellent hole of described body of heater 1 two ends furnace wall (referring to Fig. 1), be positioned on the tube wall of Elema 2 of burner hearth 4 and have some breeder tubes 5, the end of described Elema 2 (one or both ends) are intake interface.

Design principle of the present utility model is that gas is sent into the tube chamber of barred body from Elema 2 ends (being cold junction), is entered in the burner hearth 4 by described breeder tube 5 ejections again; Like this, preheating avoids cold air directly to blow to gas with when transmitting absorb heat in the Elema 2 in heating on the one hand, influences the temperature of workpiece; On the other hand, because Elema 2 is positioned at each position of stove (comprise by wall and middle part), thereby gas almost arrives under the pressure transmission effect in the stove everywhere simultaneously, makes in the stove the almost the freshest atmosphere of acceptance simultaneously of workpiece, kills two birds with one stone.

As known from the above, the utility model is the heating Elema preheating porous air intake structure of real-time atmosphere furnace, adopt this structure into stove of supplying gas, the uniformity of atmosphere is very good, and this uniformity is not the uniformity of final steady, but the uniformity in the atmosphere change procedure also is that each point can both accomplish that atmosphere changes fast and changes synchronously in the stove.Thereby consistency of product is very good, when surveying to full stove sintering the product deviation only ± 8%, and during the diffused tradition is supplied gas full stove sintering the product deviation more than ± 15%.

Description of drawings

Fig. 1 is the Elema mounting structure schematic diagram (be among Fig. 2 A-A to structure) of a kind of embodiment of the present utility model;

Fig. 2 is the positive TV structure of device shown in Figure 1.

In the drawings:

The 1-body of heater, the 2-Elema,

The 3-workpiece, the 4-burner hearth,

The 5-breeder tube.

The specific embodiment

The utility model according to Fig. 1 and Fig. 2 and said structure, atmosphere furnace is two heap box furnaces, Elema 2 respectively is provided with 6 in location of workpiece both sides, be vertical array (as shown in Figure 2), Elema 2 internal diameter 25mm, breeder tube 5 aperture 5mm, sintering atmosphere is nitrogen and Air mixing gas, the sintering workpiece is the ferrite electronic material.

Claims

1, a kind of heating Elema preheating porous air intake structure of real-time atmosphere furnace, comprise that inner chamber is the atmosphere furnace body of heater 1 and the Elema 2 of burner hearth 4, it is characterized in that, the two ends correspondence that both sides, described furnace chamber 4 middle part workpiece, 3 position are respectively equipped with many described hollow tubular Elemas 2 and described Elema 2 is installed in the corresponding excellent hole of described body of heater 1 two ends furnace wall, be positioned on the tube wall of Elema 2 of burner hearth 4 and have some breeder tubes 5, the end of described Elema 2 is an intake interface.