CN2063523U - Aging stove for beryllium bronze bright quenching - Google Patents

Abstract

The utility model relates to an aging stove for beryllium bronze bright quenching. The utility model is mainly characterized in that the uses of quenching and aging are realized; moreover, nonoxidizing heating and precise temperature control can be realized. A slewing mechanism is installed on a stove body; the weight of the stove body passes through a reinforcing ring plate which acts on a shaft; the shaft is connected with the frame of a stove via a bearing seat. In quenching, the stove body is vertically arranged. In aging, the stove body is laterally arranged. Simultaneously, an ammonia gas decomposing chamber and an automatic blanking and quenching device are installed in the stove. The utility model has the advantages of compact structure, accuracy in temperature control, uniform stove temperature, convenient operation, saving energy and low cost; the aging stove for beryllium bronze bright quenching can obviously improve the quality of products.

Description

Aging stove for beryllium bronze bright quenching

The utility model relates to a kind of metal heat treatmet equipment, refers to a kind of berylliumbronze bright quenching timeliness, precise temperature control stove especially.

At present, the special-purpose stove of Beryllium-Bronze Heat Treatment both domestic and external is formed by three stoves or two stoves.Three stoves are divided into liquefied ammonia decomposing furnace, quenching furnance and aging oven, and the temperature uniformity and the temperature-controlled precision of this type stove are lower, can not satisfy the heat treatment requirements of high-quality part.Two stoves are upright quenching furnace and the vacuum aging stove (the gas shield aging oven is also arranged) that liquefied ammonia decomposes gas shiled, though this stove can satisfy the requirement of temperature uniformity and temperature-controlled precision, the process time of timeliness is long, and system stove cost is higher.

It is higher that the purpose of this utility model provides a kind of temperature-controlled precision, and temperature homogeneity is good, can realize that a stove quenches, timeliness is dual-purpose, can quench by automatic blanking, and logical shielding gas realized the berylliumbronze bright quenching of nonoxidizing heating, timeliness heat treatment furnace.

The technical solution of the utility model is: a whole set of Equipment for Heating Processing is by process furnace, and supervisory control desk, quenching tank, nitrogen purification device four parts are formed.Supervisory control desk can be finished Control for Kiln Temperature, stove is wet shows and the cool time controlled function.Process furnace is made up of retort, boiler tube, heating member, lagging material, furnace shell, grate and rotating mechanism.Rotating mechanism is installed on the body of heater, and the may command body of heater rotates 90 °.When berylliumbronze quenched, rotating mechanism made the body of heater vertically-arranged, and it has the vertical type of furnace and is heated homogeneous heating, the advantage that part deformation is little on four sides.The electro-magnet swinging mounting is installed on the stove, and quenching has the automatic blanking function, but the part timing automatic come off, become the freely falling body entry, the transfer time of quenching is very short, unlikely appearance second is separated out mutually.Retort is fixed with the ammonia decomposition chamber outward, and ammonia enters retort after activator decomposes fully, to reach the excellent protection effect, realizes nonoxidizing heating.During timeliness, make body of heater horizontally-arranged by rotating mechanism, body of heater has the easy to operate advantage of horizontal chamber oven.Heating member is selected the good chromium nickel resistance wire of thermal property for use.Lagging material is selected ultralight matter clay brick and aluminosilicate refractory fiber for use.Three armoured thermocouples are inserted in the position, left, center, right between retort and the outer silk boiler tube respectively, by the instrument temperature of three sections stove silks of control automatically.

Below in conjunction with accompanying drawing embodiments of the invention are elaborated.

Fig. 1 is body of heater profile and rotating mechanism structure iron.

Fig. 2 is a body of heater internal structure part sectioned view.

Fig. 3 partly cuts open figure for the hot thermocouple end position.

Fig. 4 is ammonia decomposition chamber installation plan and structure sectional view.

Fig. 5 is an electro-magnet swinging mounting structure iron.

With reference to Fig. 1, body of heater is by retort (1), bell (2), furnace shell (3) and grate compositions such as (10).Rotating mechanism can adopt modes such as electronic or manual gear reducer or the transmission of toothed segment tooth plate.Consider that body of heater only need rotate 90 °, do not need motor to drive, this programme adopts the hand worm and gear transmission of crank.The weight of body of heater acts on axle (6), (8) by the enforced loop plane (4) on the furnace shell (3), stiffening plate (5), and axle (6), (8) are connected with grate (10) by bearing support (7).Axle (8) connects with worm type of reduction gearing (9).Drive speed reduction unit (9), body of heater promptly rotates, and just can realize the vertically-arranged of body of heater or horizontally-arranged.

With reference to Fig. 2, body of heater layer of structure from inside to outside is: retort (1)-outer silk boiler tube (11) ,-stove silk (13);-protective tube (14) ,-light-weight refractory shaped brick (16) ,-aluminosilicate refractory fiber (17);-asbestos plate (18) ,-furnace shell (3).Aluminosilicate refractory fiber places the skin of light fire brick.

Protective tube (14) is used for protecting the stove silk; it should keep certain distance with outer silk boiler tube (11); and inner each pipe answers relative fixed motionless when body of heater rotates, so at the body of heater two ends retaining ring (12) is arranged, retaining ring (12) is used screw attachment with end casing (15).

Be connected with ammonia decomposition chamber (23) and thermopair supporting tube because of outside the retort (1), so retort (1) the interior eccentric placement of silk boiler tube (11) outside also has corresponding eccentric orfice on the two end cover plate (15) of support retort (1).

With reference to Fig. 3, the hot junction of armoured thermocouple (19), (20), (21) is inserted in the position, left, center, right between outer silk boiler tube (11) and the retort (1) respectively, by the precise temperature control of the realization of the precision temperature auto-controlling apparatus on the supervisory control desk to three sections stove silks.

With reference to Fig. 4; the outer pipe (22) that is fixed with ammonia decomposition chamber (23) and is communicated with of retort (1) with decomposition chamber; rely on the heat of retort (1) self; ammonia decomposition chamber (23) is heated with pipe (22); ammonia from bottom to top flows into air chamber (23) through pipe (22), the more from top to bottom Fe in air chamber, Ni activator (24); enter retort (1) after decomposing fully, thereby reach the excellent protection effect.

With reference to Fig. 5, automatic blanking quenches and realizes by timing relay control electro-magnet (25), part fell to quenching after the electro-magnet energising produced suction, rotated in base (28) with axle (27) at magneticaction lower bracket (26) simultaneously and left fire door, was convenient to load a stove part and went into stove.

The utility model compared with prior art, its superiority is, this furnace structure compactness, and temperature control is accurate, furnace temperature is even, operation is convenient, can realize that scale-free heating and automatic blanking quench, and a stove can be realized the bright quenching of Beryllium Copper Parts, the functions such as timeliness, guarantee also to have improved product processing quality, and have energy-conservation, stove low cost and other advantages processed.

Claims (6)

1, a kind of berylliumbronze bright quenching aging oven, by retort (1), boiler tube, heating member, lagging material, furnace shell compositions such as (3), it is characterized in that: rotating mechanism also is installed on the body of heater, the weight of body of heater is by the enforced loop plane (4) on the furnace shell (3), stiffening plate (5) acts on axle (6), (8) on, axle (6), (8) be connected with grate (10) by bearing support (7), axle (8) connects with worm type of reduction gearing (9), the outer ammonia decomposition chamber (23) that is fixed with of retort (1), the pipe (22) that is communicated with it is housed on the ammonia decomposition chamber (23), decomposition chamber (23) is heated by the heat of retort (1) with pipe (22), ammonia from bottom to top flows into air chamber (23) through pipe (22), more from top to bottom through Fe, Ni activator (24) enters retort (1).

2, berylliumbronze bright quenching aging oven according to claim 1, it is characterized in that being equipped with on the stove electro-magnet swinging mounting by timing relay control, electro-magnet (25) energising back produces the suction part and falls to quenching, and rotates in base (28) with axle (27) at magneticaction lower bracket (26) simultaneously and leaves fire door.

3, berylliumbronze bright quenching aging oven according to claim 1 is characterized in that used lagging material aluminosilicate refractory fiber (17) places the skin of light fire brick (16).

4, berylliumbronze bright quenching aging oven according to claim 3 is characterized in that there is retaining ring (12) at the body of heater two ends, and retaining ring (12) is used screw attachment with end casing (15).

5, berylliumbronze bright quenching aging oven according to claim 4 is characterized in that retort (1) interior eccentric placement of silk boiler tube (11) outside, on the two end cover plate (15) of support retort (1) corresponding eccentric orfice is arranged also.

6, berylliumbronze bright quenching aging oven according to claim 5, the hot junction that it is characterized in that three armoured thermocouples (19), (20) (21) are inserted in the position, left, center, right between outer silk boiler tube (11) and the retort (1) respectively.

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