CN2313217Y

CN2313217Y - Skew-plug-in sampler for molten metal of casting mould

Info

Publication number: CN2313217Y
Application number: CN 97224740
Authority: CN
Inventors: 付忠礼; 于维生; 孙家祥; 耿纯孝
Original assignee: Welfare Factory Quality Department Civil Administration Enterprise Co Anshan
Current assignee: Welfare Factory Quality Department Civil Administration Enterprise Co Anshan
Priority date: 1997-08-25
Filing date: 1997-08-25
Publication date: 1999-04-07
Anticipated expiration: 2007-08-25

Abstract

The utility model discloses a skew-plug-in sampler for molten metal of a casting mould. The utility model is suitable for sampling in a metallurgy furnace or in a pot and belongs to the sampling device for metal refining test analysis. The utility model is composed of an inner and an outer paper pipes, a casting mould, a quartz conduct pipe and a slag prevention cap, wherein, the casting mould is plugged in an axial open groove at a combining end of the inner and the outer paper pipes in a skew way and is sealed by sealing material. The utility model has the advantages of high sampling success rate, low manufacture cost, convenient and flexible use and good effect, which reduces production consumption and cost.

Description

Oblique cutting mold liquid metal sampler

The utility model relates in a kind of metal smelt or the founding, at any time the utensil of sample is gathered in inspection by sampling, particularly relate to and being used in the metal smelting furnace, perhaps jar in the oblique cutting mold liquid metal sampler of sampling, belong to the sampling device of metal smelt check analysis.

In metal smelt, inspection by sampling is analyzed and is absolutely necessary, particularly in ironmaking, steel-making, in steel casting foundry's technological process, check analysis is done in sampling every now and then, as: metallurgical analysis, the continuous casting check analysis comprises: chemical analysis, gas analysis, physical examination, instrument testing, as: Photoelectric and Spectral Analysis, the X ray fluorescent is analyzed, all need to sample, the sample that adapts to check is provided, strict to this sample usually, rapidity should representatively be arranged again, general 3-5 second, 5-6 finishes sampling second at most, to satisfy the result that check analysis is provided rapidly, for decision-making technological operation and affirmation material, steel grade judges whether reach quality standards.

At present, metallurgical industry such as steelworks, steel casting foundry is generally used in the stove or a jar interior sampling is a kind of sampler of paper tube mold direct-insert, its main composition is: at long interior paper tube, general long 750 to 900mm, outer paper tube that is about 350-400mm on termination point casing, two paper tubes bonding one, insert the round flat shape mold from the lower end, the mold mouth of pipe below, insert the quartz conduit that an anti-slag of band emits, the outer paper tube of shutoff is emitted in the center break porose or atresia made from a metallic film again, and with the joint of fire resistive material sealing driving fit paper tube end, mold and paper tube axial line are on same straight line, quartz conduit mouth and paper tube port are the direction that coexists down, its main deficiency is: in sampling, be subjected to that molten metal is too high or too low for temperature to be influenced, often cause and get the sky sample, perhaps get hollow sample, half sample or the like, because liquid metal temperature is too high, does not solidify at mold mouth of pipe place, during sampling, mold central metal liquid runs off or heart portion runs off and cause the sky sample, or hollow sample takes place, when liquid metal temperature low excessively, because break emits the anti-slag on metallic film and the quartz conduit to emit metallic film, wherein there is a metallic film to fail transient melting, liquid metal just can not enter mold, cause and get sky sample or the generation of half sample, make the sampling failure, not only incur loss through delay production but also waste sampler, facts have proved, above-mentioned sampling failure scenarios accounts for the 10-20% of sampling sum, another some deficiency is: it is many to consume the quartz conduit material, and sealing break emits material indispensable again, thereby the sampler manufacturing cost is higher.

The purpose of this utility model is to avoid weak point in the above-mentioned prior art, provides a kind of and can improve the sampling success ratio, reduce the sampler consumption, save the oblique cutting mold liquid metal sampler of consuming cost, improve mold and paper tube assembly direction, reduce consumable material.

The purpose of this utility model can reach by following measure:

By interior paper tube, outer paper tube, quartz conduit, anti-slag emits the liquid metal sampler that constitutes with mold, mold is by shape, two metal half modules that structure is identical are synthetic, be flattened round band short tube shape, commissure has two exhausr ports at least, the quartz conduit that the anti-slag that the outer end band metallic film of insertion that coincide in the short tube mouth is made emits, in this mold places, the end of the pipe that outer paper tube integrally combines, paper tube end and the inside and outside paper tube end that combines outside, the shaft orientation opening groove that an oblique cutting mold is arranged, with mold short tube and root chucking thereof, the cake end outer of mold relies on mutually in interior paper tube termination, outer paper tube port inserts and seals the ring-type paper circle of effect and the pad that cardboard is made, and closed material is arranged and be the driving fit shape in conjunction with seam crossing at open slot and each.

The purpose of this utility model can also reach by following measures:

The oblique cutting mold is that the angle that the end of paper tube outside tilts the axis of symmetry of mold and paper tube axial line is 20 ° to 45 °.

The end that interior paper tube combines with outer paper tube is the ladder tubulose in the pipe, two pipes overlap only rare two iron nails in position and embed, and outer seam crossing has the closed material driving fit.

Employed closed material can be used talcum powder, magnesite light burnt powder and sodium silicate preparation.

When being used to seethe with excitement the molten steel sampling, the AI metal of 0.3-0.4 gram can be put into mold during assembling.

The utility model has following advantage compared to existing technology:

1, uses the utility model sampling success ratio height, can eliminate because the molten metal temperature is too high or the low excessively failure phenomenon that causes sampling, because structure exposes to outer paper tube for the mold mouth of pipe, during sampling, be inserted in the liquid metal pool, it passes molten slag layer, and the anti-slag on the quartz conduit emits very easily fusing, and molten metal can directly enter mold and be full of, gas is got rid of through interior paper tube from exhausr port in the mold, the sampling success ratio is only lacked than prior art and improved 10%, and is easy to use, flexible, effective.

2, manufacturing cost of the present utility model reduces, saves material, has saved break and emit, reduced quartz conduit length 50%, to produce the steelworks of 4,000,000 tons of steel per year, it is example that year consumes 100,000 of sampler, because sampling success ratio height, reduce the consumption of sampler and reduce the sampler cost, only few annual 150000 yuan of steel-making cost of saving.

The accompanying drawing drawing is described as follows:

Fig. 1, a kind of oblique cutting mold of the utility model liquid metal sampler, structure construction cut-open view;

Fig. 2 is that Fig. 1 analyses and observe sectional drawing along AOB;

Fig. 3 is the metal half module front elevation of the single-piece mold among Fig. 1;

Fig. 4 is that Fig. 3 analyses and observe sectional drawing along COD;

Below in conjunction with drawings and Examples, the utility model is described in further detail:

In conjunction with Fig. 1 and Fig. 2, be a kind of embodiment of oblique cutting mold liquid metal sampler, mold is by identical two the metal half modules 1 of shape, structure and 2 synthetic.Be flattened round band short tube shape, commissure has two exhausr ports 3, coincide in the mold short tube mouth and insert the outer end and have the anti-slag that a metallic film makes and emit 4 quartz conduit 5, with the end of this mold oblique cutting in inside and

outside paper tube

6 and 7 pipes that integrally combine, a shaft orientation opening groove 8 is arranged in the end that inside and outside paper tube combines, with mold short tube and root chucking thereof, the cake end outer of mold relies on mutually in interior paper tube 6 terminations, the port of outer paper tube 7 inserts and seals the ring-type paper circle 9 of effect and the pad 10 that cardboard is made, open slot 8 and paper tube combine seam crossing with mold have encapsulant 11, is the driving fit shape.

The oblique cutting mold is that the axial line of the axis of symmetry of mold and paper tube tilts, angle α=25 °.

The end that interior paper tube combines with outer paper tube is the ladder tubulose in the pipe, two pipe Colaesce positions have 2 iron nails 12 to embed, and make inside and

outside paper tube

6 and 7, unlikely coming off in the sampling, and outer seam crossing has closed material 11 driving fits.

Employed closed material can be used talcum powder, magnesite light burnt powder and sodium silicate preparation, also can be less with or without the magnesite light burnt powder.

When manufacturing is used to seethe with excitement Steel liquid sampler, with the AI metal of 0.3-0.4 gram, add in the mold when assembling, this point needs the user to propose specific (special) requirements.

In conjunction with Fig. 3, the front elevation of single piece of metal half film of the mold that the utility model adopts, 1 is the metal half module, make by the sheet metal punching press, open slot exhausr port 3 on the circular joint close side ring and axis of symmetry angle β=30 °.Fig. 4 is the sectional drawing that Fig. 3 analyses and observe along COD, 1 metal half module, the 3rd, the open slot of scavenging action, exhausr port.

Claims

1, a kind of interior or jar interior oblique cutting mold liquid metal sampler of sampling of metallurgic furnace that is used for, it is by interior paper tube, outer paper tube, mold, quartz conduit and anti-slag emit formation, mold is by shape, two metal half modules (1) that structure is identical and (2) are synthetic, be flattened round band short tube shape, commissure has two exhausr ports (3) at least, the insertion outer end anti-slag of band that coincide in the short tube mouth emits the quartz conduit (5) of (4), in this mold places, the end of the pipe that outer paper tube (6) and (7) integrally combine, paper tube combines and holds the shaft orientation opening groove (8) that an oblique cutting mold is arranged inside and outside it is characterized in that, tighten mutually with mold short tube and root thereof, the cake end outer of mold relies on mutually in interior paper tube (6) termination, paper tube (7) bottom outside, the ring-type paper circle (9) and the cardboard pad (10) of effect sealed in insertion, and combining seam crossing with mold at open slot (8) and paper tube has closed material (11) and be the driving fit shape.

2, oblique cutting mold liquid metal sampler according to claim 1 is characterized in that described oblique cutting mold, is the end of paper tube outside, and the axis of symmetry of mold and paper tube axial line tilt, and angle is 20 ° to 45 °.

3, oblique cutting mold liquid metal sampler according to claim 1, it is characterized in that described in the end that combines of paper tube and outer paper tube, be the ladder tubulose in the pipe, two pipes overlap only rare two iron nails in position (12) and embed, and outer seam crossing has closed material (11) driving fit.