CN203003098U - Dummy bar head of continuous thin slab casting machine - Google Patents
Dummy bar head of continuous thin slab casting machine Download PDFInfo
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- CN203003098U CN203003098U CN 201320000215 CN201320000215U CN203003098U CN 203003098 U CN203003098 U CN 203003098U CN 201320000215 CN201320000215 CN 201320000215 CN 201320000215 U CN201320000215 U CN 201320000215U CN 203003098 U CN203003098 U CN 203003098U
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- dummy bar
- bar head
- dummy
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Abstract
The utility model discloses a dummy bar head of a continuous thin slab casting machine, which belongs to the technical field of pouring equipment of continuous casting machines, is applicable to different casting section scopes, has a long service life and is safe and convenient to operate. According to the technical scheme, the dummy bar head is a steel member with a cuboid structure, the size of the upper end of the dummy bar head is matched with that of the minimum section of a casting mold of the continuous casting machine, the thickness of the lower end of the dummy bar head is matched with that of a dummy bar, 6-8 grooves for connecting dummy bolts are formed in the upper part of the dummy bar head and parallel to one another, the thickness of a wall between each two adjacent grooves is more than or equal to 50 mm, and the thickness of the outer wall of the outmost groove is more than or equal to 30 mm. The dummy bar head can satisfy requirements on the section widths of all casting blanks of 900mm-1680mm and do not need to be changed when the casting section is changed, so that the dummy bar head and the dummy bar are synchronously worn and scrapped, the operating rate of the continuous casting machine is improved, the cost of spare parts is saved, the production cost is lowered, and the economic benefit is obvious.
Description
Technical field
The utility model relates to a kind of thin-slab caster dummy bar head, belongs to conticaster casting equipment technical field.
Background technology
Dummy bar head is that the intermediate equipment that connects strand in dummy bar and crystallizer in the process of watering left by conticaster.The effect of dummy bar head is to block the crystallizer end opening when conticaster begins to cast, and the molten steel in crystallizer can not leaked down.Molten steel in crystallizer and dummy bar head and the expendable part of dummy bar upper end condense in together, by the traction of driven roller, strand is moved downwards.After strand process secondary cooling apparatus with the liquid core, throw off dummy bar head, conticaster enters normal throwing state.
Aborning, some thin-slab caster design cast section span scopes larger (900-1680mm), need to adopt I type and two kinds of dummy bar heads of II type, corresponding I type and II type crystallizer, the expendable part that coordinates different in width can be realized conticaster casting 900-1680mm scope casting blank section width requirement.In the enforcement of the production model of multiple batches of, many specifications, strand width conversion ratio is more frequent, I type and II type dummy bar head are also frequently changed thereupon, and dummy bar remains unchanged substantially, along with passage of time, dummy bar and dummy bar head cause thickness not mate because wear extent is asynchronous, for guaranteeing normal production, I type and the II type dummy bar head that must prepare multi-thickness mate the dummy bar of continuous attenuation.Bring so following drawback:
1, changing a dummy bar head approximately needs 30 minutes, and two-wire needs 60 minutes, reduces the conticaster operating rate;
2, need to prepare I type and the II type dummy bar head of multi-thickness specification, the spare part expense is high;
3, can't complete the optimization of expendable part operational version, II type expendable part usage ratio is high, and the part expense increases consumption;
4, frequently change dummy bar head, labor strength is large, difficulty is high, and easily makes a fault;
5, change the dummy bar head operation and must hang out crystallizer, change operation on fan-shaped I section, increase security risk;
6, former dummy bar head adopts high-temperature steel to make, and cost of manufacture is higher.
For this reason, engineers and technicians are necessary to design a kind of novel dummy bar head, to reduce the frequent replacing of I type and two kinds of dummy bar heads of II type, reduce the spare part expense.
The utility model content
Technical problem to be solved in the utility model is to provide the thin-slab caster dummy bar head of a kind of applicable different casting section scopes, long service life and easy-to-operate.
The technical scheme that solves the problems of the technologies described above is:
A kind of thin-slab caster dummy bar head, dummy bar head is the steel component of rectangular structure, upper end size and conticaster crystallizer minimum cross section size are complementary, lower end thickness and dummy bar thickness are complementary, have 6-8 grooves that connect the dummy ingot bolts on dummy bar head top, groove is arranged in parallel, and faces mutually that between two grooves, wall thickness is more than or equal to 50mm, and the outer wall thickness of outermost groove is more than or equal to 30mm.
Above-mentioned thin-slab caster dummy bar head, the upper end of described dummy bar head are concave surface, and concave surface is symmetrical with the dummy bar head longitudinal axis, and both sides are inclined upwardly, and the inclination angle is 2-5 °.
Above-mentioned thin-slab caster dummy bar head, both sides, described dummy bar head top are equipped with counterpart, and counterpart is fixedly connected on dummy bar head two sides by set bolt.
The beneficial effects of the utility model are:
All casting blank section width requirements of the applicable 900mm-1680mm of the utility model, solve the large conticaster of casting section span scope and needed the often problem of replacing different size dummy bar head, need not to change dummy bar head when changing casting section, making dummy bar head synchronize with dummy bar weares and teares, synchronously scraps, thereby improved conticaster operating rate, saved the spare part expense, reduced production cost, remarkable in economical benefits.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Number in the figure is as follows: counterpart 1, II type expendable part 2, I type expendable part 3, dummy bar head 4, groove 5, dummy bar 6.
The specific embodiment
The utility model is the steel component of rectangular structure, and upper end size and conticaster crystallizer minimum cross section size are complementary, and lower end thickness and dummy bar thickness are complementary.
Show in figure, in order to satisfy the requirement of the maximum throwing power of conticaster, and when satisfying the minimum casting blank section 900mm of casting, dummy bar head 4 can stretch into the requirement of crystallizer end opening, and dummy bar head 4 width are 890mm, thickness 86mm suitable for reading; Seamlessly transit for after guaranteeing dummy bar head 4 and dummy bar 6 being connected, dummy bar head 4 bottom Thickness Design are 65mm.
Show in figure, for making dummy bar head 4 can mate simultaneously I type expendable part 3 and II type expendable part 2, have 6-8 grooves 5 that connect the dummy ingot bolts on dummy bar head 4 tops, balanced for guaranteeing dummy bar head 4 upper strength and dummy ingot bolt tension force, groove 5 is dispersed placement as far as possible, groove 5 is arranged in parallel, and faces mutually 5 wall thickness of two grooves more than or equal to 50mm, and the outer wall thickness of outermost groove 5 is more than or equal to 30mm.
Show in figure, owing to adopting funnel-type crystallizer, strand has larger distortion at the crystallizer hopper zone, causes the middle part resistance of billet withdrawal larger, and the upper end of dummy bar head 4 is concave surface for this reason, and concave surface is symmetrical with the dummy bar head longitudinal axis, and both sides are inclined upwardly, and the inclination angle is 2-5 °.
Show in figure, 4 pairs of expendable part far-ends of dummy bar head have enough supports when guaranteeing that the casting blank section width is larger, at the suitable counterpart 1 of dummy bar head 4 both sides design and installations, the bolt of two M20 of counterpart 1 use is fixed, and satisfies the requirement of the maximum casting of conticaster 1680mm section width.
Dummy bar head 4 of the present utility model adopts the 16Mn steel to do, and satisfies the requirement of tensile strength under hot conditions, reduces simultaneously cost of manufacture.
Claims (3)
1. thin-slab caster dummy bar head, it is characterized in that: dummy bar head (4) is the steel component of rectangular structure, upper end size and conticaster crystallizer minimum cross section size are complementary, lower end thickness and dummy bar (6) thickness is complementary, have 6-8 grooves (5) that connect the dummy ingot bolts on dummy bar head (4) top, groove (5) is arranged in parallel, and faces mutually that between two grooves (5), wall thickness is more than or equal to 50mm, and the outer wall thickness of outermost groove (5) is more than or equal to 30mm.
2. thin-slab caster dummy bar head according to claim 1, it is characterized in that: the upper end of described dummy bar head (4) is concave surface, and concave surface is symmetrical with the dummy bar head longitudinal axis, and both sides are inclined upwardly, and the inclination angle is 2-5 °.
3. thin-slab caster dummy bar head according to claim 1 and 2 is characterized in that: described dummy bar head (4) both sides, top are equipped with counterpart (1), and counterpart is fixedly connected on dummy bar head (4) two sides by set bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320000215 CN203003098U (en) | 2013-01-02 | 2013-01-02 | Dummy bar head of continuous thin slab casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320000215 CN203003098U (en) | 2013-01-02 | 2013-01-02 | Dummy bar head of continuous thin slab casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203003098U true CN203003098U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320000215 Expired - Fee Related CN203003098U (en) | 2013-01-02 | 2013-01-02 | Dummy bar head of continuous thin slab casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203003098U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111299530A (en) * | 2020-04-20 | 2020-06-19 | 中冶京诚工程技术有限公司 | Dummy bar head and continuous casting machine for hollow round billet |
-
2013
- 2013-01-02 CN CN 201320000215 patent/CN203003098U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111299530A (en) * | 2020-04-20 | 2020-06-19 | 中冶京诚工程技术有限公司 | Dummy bar head and continuous casting machine for hollow round billet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20160102 |
|
| EXPY | Termination of patent right or utility model |