CN201561643U

CN201561643U - Demountable crucible mold of coreless induction furnace

Info

Publication number: CN201561643U
Application number: CN2009201287164U
Authority: CN
Inventors: 徐文峰
Original assignee: Chongqing University of Arts and Sciences
Current assignee: Chongqing University of Arts and Sciences
Priority date: 2009-09-03
Filing date: 2009-09-03
Publication date: 2010-08-25
Anticipated expiration: 2019-09-03

Abstract

The utility model discloses a demountable crucible mold of a coreless induction furnace, which comprises four parts, i.e. a crucible mold bottom, a crucible mold wall, a support frame and a crucible mold cap, and is characterized in that the overall profile of the crucible mold bottom is in the shape of a concavity with tapered thick bottom and thick edges, and the height of the edges exceeds a circular arc transition region between the side wall curved surface and the bottom plane; the crucible mold wall is a tapered cylinder surrounded by three steel plates with the thickness of 7-9mm, the Y-shaped support frame is mounted in the middle of the inner side, the upper edge of the cylinder is inserted in a circular slot of the crucible mold cap, and the lower edge is inserted in a groove of the crucible mold bottom. The crucible mold is applicable to the repeated use for crucibles on the coreless induction furnaces which ram above 1 ton, has the advantages of convenient assembly and disassembly, high strength, stable gravity center, and low probability of deformation and running deviation, and is suitable for mechanical ramming.

Description

Detachable coreless induction furnace crucible mould

Technical field

The utility model relates to a kind of crucible mould of metal material technical field of smelting, specifically, is a kind of detachable coreless induction furnace crucible mould, is used for the knotting of coreless induction furnace crucible.

Background technology

The crucible that existing coreless induction furnace uses in smelting process mainly adopts artificial or mechanical ramming refractory material to ram the type that builds up, and is forming through sintering again.Behind the induction furnace brickwork knotting crucible,, all to melt away simultaneously with the furnace charge of baker because the crucible mould is difficult to take out from the crucible that ties.This way, on the one hand, artificial and Master Cost need take smelting cost for a long time, and in the smelting of the smelting of high-alloy steel and special non-ferrous alloy, can increase cost of alloy, in the smelting of special non-ferrous alloy, also can bring unwanted impurity element, the product quality that influence is smelted; On the other hand because knotting requires during crucible to smash tight compacting, more than 1 ton in, large-scale coreless induction furnace adopted mechanical ramming, the disposable crucible mould of sheet metal material commonly used, easy deformation in the knotting process, center are also wayward, easily sideslip, cause the crucible body of heater uneven distribution of knotting even, physical dimension is difficult to guarantee, not only influences the service life of crucible, and be easy to generate crackle, easily cause the stove bleed-out accident of wearing of smelting, bring hidden danger for ordinary production order and production safety; If adopt steel plate or cast member through being machined into disposable crucible mould, can increase the smelting cost of the molded work of crucible undoubtedly again.So, in the smelting of coreless induction furnace is produced, need a kind ofly can use repeatedly, dismountable, intensity height, stable gravity center, be fit to mechanical ramming, be used for the crucible mould of coreless induction furnace crucible knotting.

The utility model content

Technical problem to be solved in the utility model is: a kind of detachable coreless induction furnace crucible mould is provided, and this crucible mould is adapted at using repeatedly on the coreless induction furnace more than one ton, and is simple in structure, and convenient disassembly is fit to mechanical ramming, not yielding and sideslip.

The technical scheme that its technical problem that solves the utility model adopts is: detachable coreless induction furnace crucible mould, comprise at the bottom of the crucible mould, the crucible die wall, bracing frame, crucible die cap four parts is characterized in that: whole section is the thick end of being with tapering, " recessed " font of webbing at the bottom of the described crucible mould, the height on limit surpasses the arc transition district of sidewall curved surface and baseplane, the centre is welded with the suspension hook ring, and the upper outside of webbing has the contraction terrace with edge, and there is a circle groove at the terrace with edge place; Described crucible die cap is that a thickness is uniform, and than the bigger circular lid of crucible die wall external diameter suitable for reading, it is welded with the suspension hook ring above top, at the concentric circles place identical with crucible die wall outside dimension suitable for reading, is processed with the wide circular groove of 10～12mm below; Described crucible die wall is the cylinder that is surrounded the band tapering by three blocks of thick steel plates of 7～9mm, and the inboard respectively is welded with the suspension hook ring, and the middle part is equipped with bracing frame, and insert in the circular groove of crucible die cap its cylinder top, in the groove at the bottom of the following insertion crucible mould.

In the technique scheme, two sides of every wall of described crucible die wall all are finish-machined to the monolateral boss of " L " shape of precision-fit mutually, and the bottom side of every wall then is processed into the boss that matches with groove size at the bottom of the crucible mould; Both sides in the position, upper, middle and lower of every wall seam crossing, all correspondence is welded with connecting plate with holes, and fastening bolt can be installed.

As the preferred embodiment of technique scheme, support frame as described above be by three independently one of support bar be hinged to " Y " shape forms by coupking shaft, then hinge is solid on three different crucible die walls respectively in the other end of bar, fixes with key-bolt.

After adopting technique scheme, crucible die wall and bracing frame all can free assembly and disassembly, guaranteed the convenience of the assembly and disassembly of whole crucible mould.And, because the super thick design own wt of superelevation at the bottom of the crucible mould is big, add crucible die wall and bracing frame, and the weight of crucible die cap, after in a single day the crucible mould being in place assemble, be difficult for sideslip in ramming; In addition, the high design that surpasses the arc transition district of sidewall curved surface and baseplane in the limit at the bottom of the crucible mould, the crucible that has guaranteed knotting is in the arc transition district, and the weakness of the easiest generation circumferential crack did not have seam during this smelted, thereby had guaranteed the quality of knotting crucible.At last, the crucible die wall of secure fit has adopted the steel plate making at the bottom of the crucible mould, and seam is processed into the monolateral boss of " L " shape of precision-fit mutually mutually, and seam is thin, and is little to the shaping influence of knotting crucible; The fastening bolt of bracing frame and upper, middle and lower in addition, and the fixing design of the circular groove of the crucible die cap on the top have avoided it in ramming, deform in the particularly mechanical ramming and tilt.

The beneficial effects of the utility model are: a kind of detachable coreless induction furnace crucible mould is provided, this crucible mould be adapted at more than one ton in, on the large-scale coreless induction furnace, can use repeatedly, the combination convenient disassembly is fit to mechanical ramming, not yielding and sideslip.

Description of drawings

Fig. 1 is a sectional structure schematic diagram of the present utility model;

Fig. 2 is the sectional structure schematic diagram of A-A line among Fig. 1 of the present utility model;

Among the figure at the bottom of the 1. crucible moulds; 2. crucible die wall, the monolateral boss of 2a. crucible die wall side " L " shape, bottom side boss under the 2b. crucible die wall; 3. bracing frame; 4. crucible die cap; 5. fastening bolt; 6. suspension hook ring; 7. circular groove; 8. coupking shaft; 9. key-bolt; 10. connecting plate; 11. terrace with edge.

The specific embodiment

Further the utility model is illustrated below in conjunction with drawings and Examples.

Referring to Fig. 1～2, detachable coreless induction furnace crucible mould, comprise at the bottom of the crucible mould 1, crucible die wall 2, bracing frame 3, crucible die cap 4 four parts, it is characterized in that: 1 whole section is the thick end of being with tapering, " recessed " font of webbing at the bottom of the described crucible mould, the centre is welded with suspension hook ring 6, and the upper outside of webbing has the terrace with edge 11 of contraction, and there is a circle groove at terrace with edge 11 places; Described crucible die cap 4 is that a thickness is uniform, and than the bigger circular lid of crucible die wall 2 external diameters suitable for reading, it is welded with suspension hook ring 6 above top, below with the identical concentric circles place of crucible die wall 2 outside dimensions suitable for reading, be processed with the wide circular groove of 10～12mm 7; Described crucible die wall 2 is the cylinders that surrounded the band tapering by three blocks of thick steel plates of 7～9mm, and middle inside is equipped with bracing frame 3, and insert in the circular groove 7 of crucible die cap 4 its cylinder top, the following insertion at the bottom of the crucible mould in 1 the groove.Two sides of every wall of described crucible die wall 2 all are finish-machined to the monolateral boss 2a of " L " shape of precision-fit mutually, and the bottom side of every wall then is processed into the boss 2b that matches with 1 groove size at the bottom of the crucible mould; Both sides in the position, upper, middle and lower of every wall seam crossing, all correspondence is welded with connecting plate with holes 10, and fastening bolt 5 can be installed.Support frame as described above 3 be by three independently one of support bar be hinged to " Y " shape forms by coupking shaft 8, then hinge is solid on three different crucible membranous walls respectively in the other end of bar, and is fixing with key-bolt 9.

When tiing a knot crucible, in the coreless induction body of heater, tie earlier the bottom of crucible, take off around the pine, hung at the bottom of the crucible mould 1 then.Hang two crucible die walls 2 again and be close at the bottom of the crucible mould 1 terrace with edge 11, bottom side boss 2b is down inserted at the bottom of the crucible mould in 1 the groove; Mutually the monolateral boss 2a of " L " shape of side is combined together, seam following, in, tighten sheet 10 and install fastening bolt 5; Two support bars one is hingedly fixed on two crucible die walls 2 with key-bolt 9 respectively, and two support bars this moments can left-right rotation; Same again installation has fixed the 3rd crucible die wall 2 of support bar, and light band tightens bolt 5 behind the joint close, three support bars coupking shaft 8 hinged composition " Y " shape bracing frames 3; Cover crucible cover 4, and make the top of round barrel shape crucible die wall 2 insert 7 kinds of its circular grooves fully.Adjust the degree of tightness of the fastening bolt 5 of each seam, put just whole crucible mould, make crucible die wall 2 and 1 outer wall curved surface at the bottom of the crucible on same curved surface, the joint gap of crucible die wall 2 is even up and down, tightens each fastening bolt 5 then synchronously, and the crucible mould installs.

After tying crucible, hang earlier and call the crucible die cap away.Lay down the bolt on the coupking shaft 8 of bracing frame again, the support bar that rotating hinge is connected together separates it separately; Unclamp all fastening bolts 5 then, call three crucible die walls 2 successively away, take off key-bolt 9 and lay down separately support bar with crane.Hang away at last at the bottom of the crucible 1, the dismounting of crucible mould finishes.Each component facade of crucible mould has been settled accounts in polishing, in order to using next time again.

Claims

1. detachable coreless induction furnace crucible mould, comprise (1) at the bottom of the crucible mould, crucible die wall (2), bracing frame (3), crucible die cap (4) four parts is characterized in that: (1) whole section is the thick end of being with tapering, " recessed " font of webbing at the bottom of the described crucible mould, the height on limit surpasses the arc transition district of sidewall curved surface and baseplane, the centre is welded with suspension hook ring (6), and the upper outside of webbing has contraction terrace with edge (11), and terrace with edge (11) has been located a circle groove; Described crucible die cap (4) is that a thickness is uniform, than the bigger circular lid of crucible die wall (2) external diameter suitable for reading, it is welded with suspension hook ring (6) above top, below with the identical concentric circles place of crucible die wall (2) outside dimension suitable for reading, be processed with the wide circular groove of 10～12mm (7); Described crucible die wall (2) is the cylinder that is surrounded the band tapering by three blocks of thick steel plates of 7～9mm, the inboard respectively is welded with suspension hook ring (6), the middle part is equipped with bracing frame (3), and insert in the circular groove (7) of crucible die cap (4) its cylinder top, in the following groove that inserts (1) at the bottom of the crucible mould.

2. detachable coreless induction furnace crucible mould according to claim 1, it is characterized in that: two sides of every wall of described crucible die wall (2), all be finish-machined to the monolateral boss of " L " shape (2a) of precision-fit mutually, the bottom side of every wall then is processed into the boss (2b) that matches with groove size at the bottom of the crucible mould; Both sides in the position, upper, middle and lower of every wall seam crossing, all correspondence is welded with connecting plate with holes (10), and fastening bolt (5) can be installed.

3. detachable coreless induction furnace crucible mould according to claim 1, it is characterized in that: support frame as described above (3) be by three independently one of support bar be hinged by coupking shaft (8) and form for " Y " shape, then hinge is solid on three different crucible membranous walls respectively in the other end of bar, and is fixing with key-bolt (9).